KR20190064984A - Display device comprising neutral plane adjusting member and eletronic device comprising the same - Google Patents

Abstract

In a display device according to various embodiments of the present disclosure, a polarizing layer; A display panel including a pixel layer including a plurality of pixels, and a substrate layer for driving the plurality of pixels; And an adhesive layer disposed between the polarizing layer and the display panel, wherein the adhesive layer comprises: a first adhesive member disposed below the polarizing layer; A second adhesive member disposed on the display panel; And a neutral surface regulating member disposed between the first adhesive member and the second adhesive member, wherein the neutral surface regulating member has a layer on which the substrate layer is disposed, at least the neutral surface regulating member, The second adhesive member, and the neutral plane of the module including the display panel correspond to the substrate layer.

Description

TECHNICAL FIELD [0001] The present invention relates to a display device including a neutral plane adjusting member, and an electronic device including the same. [0002]

Various embodiments of the present invention are directed to a display device including a neutral plane adjustment member and an electronic device including the same.

The electronic device can perform various and complex functions through the display device. The electronic device can perform, for example, media output and control through the display device, the ability to sense the coordinates and / or intensity of the touch input, and the like. Accordingly, the display device may have a structure in which a plurality of panels that provide various functions such as a touch panel, as well as a display panel, are stacked.

Embodiments of the present invention are electronic apparatuses including a display laminate structure excellent in durability against bending or external impacts, in which a film layer is added to a display laminate structure to provide an electronic device capable of minimizing bending and deformation in portions vulnerable to external impact .

In a display device according to various embodiments of the present disclosure, a polarizing layer; A display panel including a pixel layer including a plurality of pixels, and a substrate layer for driving the plurality of pixels; And an adhesive layer disposed between the polarizing layer and the display panel, wherein the adhesive layer comprises: a first adhesive member disposed below the polarizing layer; A second adhesive member disposed on the display panel; And a neutral surface regulating member disposed between the first adhesive member and the second adhesive member, wherein the neutral surface regulating member has a layer on which the substrate layer is disposed, at least the neutral surface regulating member, The second adhesive member, and the neutral plane of the module including the display panel correspond to the substrate layer.

An electronic device according to various embodiments includes: a housing including a first side and a second side spaced from the first side; A transparent cover comprising a bend extending from at least a portion of said planar portion, said transparent cover being shaped to form at least a portion of said first surface; A display panel disposed between the second surface and the transparent cover; A polarizing layer disposed between the transparent cover and the display panel; And an adhesive layer disposed between the polarizing layer and the display panel, wherein the adhesive layer comprises a neutral plane adjusting member disposed between the polarizing layer and the display panel; A first adhesive member disposed between the polarizing layer and the neutral plane adjusting member; And a second adhesive member disposed between the neutral plane regulating member and the display panel.

In a display device according to various embodiments, a polarizing layer; A display panel including a plurality of pixels and a substrate layer for driving the plurality of pixels; And an adhesive layer disposed between the polarizing layer and the display panel, wherein the adhesive layer comprises: a first adhesive member having a first thickness disposed below the polarizing layer; A second adhesive member disposed on the display panel and having a second thickness; And a transparent member disposed between the first adhesive member and the second adhesive member, wherein the transparent member has a layer on which the substrate layer is disposed, the transparent member, the second adhesive member, and the display panel May be arranged to correspond to the neutral plane of the containing module.

A display device according to an embodiment of the present disclosure is configured such that a neutral plane is positioned in an area or layer where a driving circuit included in a display panel is disposed using an adhesive layer stacked adjacent to a display panel and including a member having a high modulus of elasticity can do.

Accordingly, the display device according to one embodiment of the present disclosure can have improved rigidity, product reliability, impact resistance to bending and external impact.

1 is a perspective view of an electronic device including a display laminate structure according to various embodiments of the present disclosure;
2 is a side view of an electronic device including a display laminate structure according to various embodiments of the present disclosure;
3 is an exploded perspective view of an electronic device including a display laminate structure according to various embodiments of the present disclosure;
4 is a cross-sectional view showing a state in which the display laminate structure is subjected to stress due to bending.
5 is a cross-sectional view illustrating a state in which a display device according to various embodiments of the present disclosure is stacked on a transparent cover.
6 is a view showing a position where a neutral plane is formed when stress is applied to an object.
7 is a cross-sectional view of a display device according to one embodiment of the present disclosure;
FIG. 8 shows graphs showing the result of the quickness evaluation according to the thickness of the neutral surface control layer according to various embodiments.
Figure 9 shows another example of a neutral surface control layer according to one embodiment.

Hereinafter, various embodiments of the present disclosure will be described with reference to the accompanying drawings. It should be understood, however, that this disclosure is not intended to limit the present disclosure to the particular embodiments, but includes various modifications, equivalents, and / or alternatives of the embodiments of the present disclosure. In connection with the description of the drawings, like reference numerals may be used for similar components.

In this document, the expressions "having," " having, "" comprising," or &Quot;, and does not exclude the presence of additional features.

In this document, the expressions "A or B," "at least one of A or / and B," or "one or more of A and / or B," etc. may include all possible combinations of the listed items . For example, "A or B," "at least one of A and B," or "at least one of A or B" includes (1) comprises at least one A, (2) comprises at least one B, (3) at least one A and at least one B all together.

The terms "first," "second," "first," or "second," etc. used in various embodiments may describe various components in any order and / or importance, Lt; / RTI > The representations may be used to distinguish one component from another. For example, the first user equipment and the second user equipment may represent different user equipment, regardless of order or importance. For example, without departing from the scope of the present disclosure, the first component may be referred to as a second component, and similarly, the second component may be named as the first component.

It is also possible that a component (eg, a first component) is "(operatively or communicatively coupled) / to" another component (eg, a second component) It is to be understood that when an element is referred to as being "connected to ", it is to be understood that the element may be directly connected to the other element or may be connected through another element (e.g., a third element). On the other hand, when it is mentioned that a component (e.g., a first component) is "directly connected" or "directly connected" to another component (e.g., a second component) It can be understood that there is no other component (e.g., a third component) between other components.

As used herein, the phrase " configured to " as used herein is intended to encompass, depending on the context, for example, having the ability to be suitable for, The present invention may be used interchangeably with "designed to," "adapted to," "made to," or "capable of". The term " configured to (or configured) "may not necessarily mean specifically designed to be" specifically designed. "Instead, in some circumstances, the expression" a device configured to " For example, a central processing unit (or set) configured to perform the phrases A, B, and C "may be used to perform the actions Purpose processor (e.g., a CPU or an application processor) that can perform one or more software programs stored on a dedicated central processing unit (e.g., an embedded central processing unit) ). ≪ / RTI >

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the other embodiments. The singular expressions may include plural expressions unless the context clearly dictates otherwise. All terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the art of the present disclosure. Commonly used predefined terms may be interpreted to have the same or similar meaning as the contextual meanings of the related art and are not to be construed as ideal or overly formal in meaning unless expressly defined in this document . In some cases, the terms defined herein may not be construed to exclude embodiments of the present disclosure.

An electronic device according to various embodiments of the present disclosure may be, for example, a smartphone, a tablet personal computer, a mobile phone, a videophone, an e-book reader reader, a desktop personal computer, a laptop personal computer, a netbook computer, a workstation, a server, a personal digital assistant (PDA), a portable multimedia player (PMP) , Mobile medical devices, cameras, or wearable devices such as smart glasses, head-mounted-devices (HMD), electronic apparel, electronic bracelets, electronic necklaces, (e. g., apps, e-tat, smart mirror, or smart watch).

In some embodiments, the electronic device may be a smart home appliance. Smart home appliances include, for example, televisions, digital video disk (DVD) players, audio, refrigerators, air conditioners, vacuum cleaners, ovens, microwaves, washing machines, air cleaners, set- You can choose between a home automation control panel, a security control panel, a TV box such as Samsung HomeSync, Apple TV ^TM or Google TV ^TM , a game console such as Xbox, PlayStation, An electronic key, a camcorder, or an electronic photo frame.

In an alternative embodiment, the electronic device may be any of a variety of medical devices (e.g., various portable medical measurement devices such as a blood glucose meter, a heart rate meter, a blood pressure meter, or a body temperature meter), magnetic resonance angiography (MRA) A global positioning system receiver, an event data recorder (EDR), a flight data recorder (FDR), an automotive infotainment device, a navigation system, a navigation system, Electronic devices (eg marine navigation devices, gyro compass, etc.), avionics, security devices, head units for vehicles, industrial or home robots, ATMs (automatic teller's machines) point of sale or internet of things such as light bulbs, various sensors, electric or gas meters, sprinkler devices, fire alarms, thermostats, street lights, toasters, A water tank, a heater, a boiler, and the like).

According to some embodiments, the electronic device is a piece of furniture or a part of a building / structure, an electronic board, an electronic signature receiving device, a projector, Water, electricity, gas, or radio wave measuring instruments, etc.). In various embodiments, the electronic device may be a combination of one or more of the various devices described above. An electronic device according to some embodiments may be a flexible electronic device. Further, the electronic device according to the embodiment of the present disclosure is not limited to the above-described devices, and may include a new electronic device according to technological advancement.

1 is a block diagram of an electronic device 101 in a network environment 100, in accordance with various embodiments. 1, an electronic device 101 in a network environment 100 communicates with an electronic device 102 via a first network 198 (e.g., near-field wireless communication) or a second network 199 (E. G., Remote wireless communication). ≪ / RTI > According to one embodiment, the electronic device 101 is capable of communicating with the electronic device 104 through the server 108. According to one embodiment, the electronic device 101 includes a processor 120, a memory 130, an input device 150, an audio output device 155, a display device 160, an audio module 170, a sensor module 176, an interface 177, a haptic module 179, a camera module 180, a power management module 188, a battery 189, a communication module 190, a subscriber identity module 196, and an antenna module 197 ). In some embodiments, at least one (e.g., display 160 or camera module 180) of these components may be omitted from the electronic device 101, or other components may be added. In some embodiments, some components, such as, for example, a sensor module 176 (e.g., a fingerprint sensor, an iris sensor, or an illuminance sensor) embedded in a display device 160 Can be integrated.

Processor 120 may be configured to operate at least one other component (e.g., hardware or software component) of electronic device 101 connected to processor 120 by driving software, e.g., And can perform various data processing and arithmetic operations. Processor 120 loads and processes commands or data received from other components (e.g., sensor module 176 or communication module 190) into volatile memory 132 and processes the resulting data into nonvolatile memory 134. [ Lt; / RTI > According to one embodiment, the processor 120 may operate in conjunction with a main processor 121 (e.g., a central processing unit or an application processor) and, independently, or additionally or alternatively, Or a co-processor 123 (e.g., a graphics processing unit, an image signal processor, a sensor hub processor, or a communications processor) specific to the designated function. Here, the coprocessor 123 may be operated separately from or embedded in the main processor 121.

In such a case, the coprocessor 123 may be used in place of the main processor 121, for example, while the main processor 121 is in an inactive (e.g., sleep) state, At least one component (e.g., display 160, sensor module 176, or communications module 176) of the components of electronic device 101 (e.g., 190) associated with the function or states. According to one embodiment, the coprocessor 123 (e.g., an image signal processor or communications processor) is implemented as a component of some other functionally related component (e.g., camera module 180 or communication module 190) . Memory 130 may store various data used by at least one component (e.g., processor 120 or sensor module 176) of electronic device 101, e.g., software (e.g., program 140) ), And input data or output data for the associated command. The memory 130 may include a volatile memory 132 or a non-volatile memory 134.

The program 140 may be software stored in the memory 130 and may include, for example, an operating system 142, a middleware 144,

The input device 150 is an apparatus for receiving a command or data to be used for a component (e.g., processor 120) of the electronic device 101 from the outside (e.g., a user) of the electronic device 101, For example, a microphone, a mouse, or a keyboard may be included.

The sound output device 155 is a device for outputting a sound signal to the outside of the electronic device 101. For example, the sound output device 155 may be a speaker for general use such as a multimedia reproduction or a sound reproduction, . According to one embodiment, the receiver may be formed integrally or separately with the speaker.

Display device 160 may be an apparatus for visually providing information to a user of electronic device 101 and may include, for example, a display, a hologram device, or a projector and control circuitry for controlling the projector. According to one embodiment, the display device 160 may include touch circuitry, a pressure sensor capable of measuring the intensity of the pressure on the touch, and / or a sensing panel. The sensing panel can detect a pointing position with a peripheral device, e.g., a position indicator (or stylus pen).

The audio module 170 is capable of bi-directionally converting sound and electrical signals. According to one embodiment, the audio module 170 may acquire sound through the input device 150, or may be connected to the audio output device 155, or to an external electronic device (e.g., Electronic device 102 (e.g., a speaker or headphone)).

The sensor module 176 is the operating state of the inside of the electronic device (101) may generate an electrical signal or data values corresponding to the (for example, power or temperature), or out of the environmental conditions. The sensor module 176 may be a gesture sensor, a gyro sensor, a barometric sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared sensor, Or an illuminance sensor.

The interface 177 may support a designated protocol that may be wired or wirelessly connected to an external electronic device (e.g., the electronic device 102). According to one embodiment, the interface 177 may include a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal 178 may be a connector such as an HDMI connector, a USB connector, an SD card connector, or an audio connector that can physically connect the electronic device 101 and an external electronic device (e.g., the electronic device 102) (E.g., a headphone connector).

The haptic module 179 may convert electrical signals into mechanical stimuli (e.g., vibrations or movements) or electrical stimuli that the user may perceive through tactile or kinesthetic sensations. The haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 180 can capture a still image and a moving image. According to one embodiment, the camera module 180 may include one or more lenses, an image sensor, an image signal processor, or a flash.

The power management module 188 is a module for managing the power supplied to the electronic device 101, and may be configured as at least a part of, for example, a power management integrated circuit (PMIC).

The battery 189 is an apparatus for supplying power to at least one component of the electronic device 101 and may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

The communication module 190 is responsible for establishing a wired or wireless communication channel between the electronic device 101 and an external electronic device (e.g., electronic device 102, electronic device 104, or server 108) Lt; / RTI > Communication module 190 may include one or more communication processors that support wired communication or wireless communication, operating independently of processor 120 (e.g., an application processor). According to one embodiment, the communication module 190 may include a wireless communication module 192 (e.g., a cellular communication module, a short range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (E.g., a local area network (LAN) communication module, or a power line communication module), and the corresponding communication module may be used to communicate with a first network 198 (e.g., Bluetooth, WiFi direct, Communication network) or a second network 199 (e.g., a telecommunications network such as a cellular network, the Internet, or a computer network (e.g., a LAN or WAN)). The various types of communication modules 190 described above may be implemented as a single chip or may be implemented as separate chips.

According to one embodiment, the wireless communication module 192 may use the user information stored in the subscriber identification module 196 to identify and authenticate the electronic device 101 within the communication network.

The antenna module 197 may include one or more antennas for externally transmitting or receiving signals or power. According to one embodiment, the communication module 190 (e.g., the wireless communication module 192) may transmit or receive signals to or from an external electronic device via an antenna suitable for the communication scheme.

Some of the components are connected to each other via a communication method (e.g., bus, general purpose input / output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI) (Such as commands or data) can be exchanged between each other.

 According to one embodiment, the command or data may be transmitted or received between the electronic device 101 and the external electronic device 104 via the server 108 connected to the second network 199. Each of the electronic devices 102 and 104 may be the same or a different kind of device as the electronic device 101. [ According to one embodiment, all or a portion of the operations performed in the electronic device 101 may be performed in another or a plurality of external electronic devices. According to one embodiment, in the event that the electronic device 101 has to perform some function or service automatically or upon request, the electronic device 101 may be capable of executing the function or service itself, And may request the external electronic device to perform at least some functions associated therewith. The external electronic device receiving the request can execute the requested function or additional function and transmit the result to the electronic device 101. [ The electronic device 101 can directly or additionally process the received result to provide the requested function or service. For this purpose, for example, cloud computing, distributed computing, or client-server computing technology may be used.

Electronic devices in accordance with various embodiments of the present disclosure may be various types of devices. The electronic device can include, for example, at least one of a portable communication device (e.g., a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance. The electronic device according to the embodiment of the present disclosure is not limited to the above-mentioned devices.

The term "module" as used herein includes units made up of hardware, software, or firmware and may be used interchangeably with terms such as, for example, logic, logic blocks, components, or circuits. A module may be an integrally constructed component or a minimum unit or part thereof that performs one or more functions. For example, the module may be configured as an application-specific integrated circuit (ASIC).

Various embodiments of the present disclosure may include instructions stored in a machine-readable storage medium (e.g., internal memory 136 or external memory 138) readable by a machine (e.g., a computer) Software (e.g., program 140). The device may include an electronic device (e.g., electronic device 101) in accordance with the disclosed embodiments as an apparatus that is operable to invoke stored instructions from the storage medium and act upon the called instructions. When the instruction is executed by a processor (e.g., processor 120), the processor may perform the function corresponding to the instruction, either directly or using other components under the control of the processor. The instructions may include code generated or executed by the compiler or interpreter. A device-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-temporary' means that the storage medium does not include a signal and is tangible, but does not distinguish whether data is stored semi-permanently or temporarily on the storage medium.

According to one embodiment, a method according to various embodiments disclosed in this disclosure may be provided in a computer program product. A computer program product can be traded between a seller and a buyer as a product. A computer program product may be distributed in the form of a machine readable storage medium (eg, compact disc read only memory (CD-ROM)) or distributed online through an application store (eg PlayStore ™). In the case of on-line distribution, at least a portion of the computer program product may be temporarily stored, or temporarily created, on a storage medium such as a manufacturer's server, a server of an application store, or a memory of a relay server.

Each of the components (e.g., modules or programs) according to various embodiments may be comprised of a single entity or a plurality of entities, and some subcomponents of the aforementioned subcomponents may be omitted, or other subcomponents may be various May be further included in the embodiment. Alternatively or additionally, some components (e.g., modules or programs) may be integrated into a single entity to perform the same or similar functions performed by each respective component prior to integration. Operations performed by a module, program, or other component, in accordance with various embodiments, may be performed in a sequential, parallel, iterative, or heuristic manner, or at least some operations may be performed in a different order, omitted, .

2 is a perspective view of an electronic device including a display device according to various embodiments of the present disclosure; 3 is a plan view of an electronic device including a display device according to various embodiments of the present disclosure;

Referring to FIGS. 2 and 3, the electronic device 200 may include a housing 210 that constitutes the external shape of the electronic device 200. According to one embodiment, the housing 210 can be distinguished based on the front face 2001, the side face 2002, and the rear face 2003. [ For example, the electronic device 200 includes a front housing 210 facing the first direction (+ z direction), a rear housing 230 facing the second direction (rear, -z direction) opposite to the first direction, And a side housing 220 oriented in a third direction (x or y directions) that is perpendicular or substantially perpendicular to the first direction (or second direction). The side housing 220 may be formed to surround a space between the front housing 210 and the rear housing 230.

According to one embodiment, each of the housings can independently form the front face 2001, the side face 2002, and the rear face 2003 together, or at least a part of each other. Referring to one side of the electronic device 200, at least a portion of the front housing 210 has a curved shape and can form the side 2002 of the electronic device 200 with the side housing 220. For example, the front housing 210 may include a planar area A1 (or planar portion) and a bendable area A2 (or bend portion). The planar area A1 may have a curvature and may mean a region having a small curvature of the bending area A2. The front housing 210 may define a substantially flat area as a planar area A1 and an area having a greater curvature than the planar area A1 as a bend area A2. According to one embodiment, the front housing 210 may include a planar area A1 and a bend area A2 extending symmetrically to both sides of the planar area A1. In another embodiment, the bending area A2 may be formed only on one side of the planar area A1. The housings included in the housing 210 may have any suitable shape for the sake of design considering the external shape and / or function, and may be integrally formed or formed and assembled respectively. Thus, in the present disclosure, the front housing 210, the rear housing 230, and the side housing 220 are not construed as limiting each housing to one component, and may have any suitable configuration .

The planar area A1 and the bend area A2 at the part where the display device is arranged in the front housing 210 are referred to as a planar display part A1 and a bend display part (or edge display part) A2 . The panels (not shown) of the display device disposed inside the front housing 210 in the bending display portion A2 may be curved and curved along the curved surface of the front housing 210. [

According to one embodiment, the front housing 210 is formed to be transparent so that light or signals that are emitted by a display device disposed therein may be transmitted or configured to interact with a user through a touch screen panel included within the display device . Thus, the front housing 210 may be referred to as a transparent cover.

4 is an exploded perspective view of an electronic device including a display device according to various embodiments of the present disclosure;

4, the electronic device 400 includes a front housing 410 (or a transparent cover), a side housing 420, a back housing 430, a printed circuit board 440, a battery 450, Antenna 460 may be included. At least one of the components of the electronic device 400 may be the same as or similar to at least one of the components of the electronic device 101, 200 of FIG. 1 or 2, do.

The electronic device 400 (e.g., the electronic device 101) may include a plurality of electronic devices (e. G., Electronic devices 101) interposed between the front housing 410 (e.g., the front housing 210) and the rear housing 430 Panels. According to one embodiment, the plurality of panels 411 include a touch panel 412, a display panel 413, a conductive shield panel 414, a pressure sensor panel 415, and a fingerprint sensor panel 416 . Each of the plurality of panels 411 may be stacked (or attached) sequentially under the front housing 410. Accordingly, all of the plurality of panels including the front housing 410 and the display panel 412 can be referred to as one 'display device', 'display panel', or 'display module'. A structure in which a plurality of panels 411 are stacked under the front housing 410 and the front housing 410 may be referred to as a laminated structure of a display device (or a display panel).

According to some embodiments, each of the panels may be disposed to overlap only a portion of the front housing 410 to reduce the thickness of the electronic device 400. For example, at least a portion of the pressure sensor panel 416 may be disposed substantially flush with the conductive shield panel 414.

The side housing 420 may include a support portion 321 formed integrally therewith or formed by a separate member coupled thereto. The support portion 421 may have a front housing 410 coupled to one side and a printed circuit board 440 coupled to the back side. A processor, memory, and / or interface may be mounted (or disposed) on the printed circuit board 440. A processor may include, for example, one or more of a central processing unit, an application processor, a graphics processing unit, an image signal processor, a sensor hub processor, or a communications processor. The memory may include, for example, volatile memory or non-volatile memory. The interface may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, and / or an audio interface. The interface may, for example, electrically or physically connect the electronic device 400 with an external electronic device and may include a USB connector, an SD card / MMC connector, or an audio connector.

The battery 450 may include an apparatus for supplying power to at least one component of the electronic device 400, for example, a non-rechargeable primary battery, or a rechargeable secondary battery, or a fuel cell . At least a portion of the battery 450 may be disposed, for example, substantially flush with the printed circuit board 440. The battery 450 may be disposed integrally within the electronic device 400 and may be disposed detachably with the electronic device 400. According to one embodiment, it may include an opening (or a housing slot) 422 formed in at least a portion of the support portion 421. The opening 422 can be utilized as a space for compensating for swelling of the battery 450.

The antenna 460 may be disposed between the rear housing 430 and the battery 450. The antenna 460 may include, for example, a near field communication (NFC) antenna, a wireless charging antenna, and / or a magnetic secure transmission (MST) antenna. The antenna 460 can perform short-range communication with an external device, for example, or transmit and receive power required for charging wirelessly. In another embodiment, an antenna radiator may be further included in a portion of the side housing 420 and / or the support portion 421 to form an antenna structure with the antenna 460. [ According to one embodiment, it may include a conductor 423 that covers at least a portion of the opening 422 of the support 421. The conductor 423 may function to prevent degradation of antenna performance by shifting the parasitic resonance frequency that may occur in the opening 422 to an outband.

5 is a cross-sectional view illustrating a state in which a display device according to various embodiments of the present disclosure is stacked on a transparent cover. Referring to FIG. 5, a display device 520 stacked under the transparent cover 510 (or the front housing) and the transparent cover 510 may include a planar area A1 and a bend area A2. The display device 520 of FIG. 5 may include at least some of the same or similar configurations as the front housing 410 and the plurality of panels 411 of FIG. The detailed description of the redundant configuration is omitted.

The transparent cover 510 may be manufactured by a thermoforming process. The thermoforming process is a method in which a thermoplastic material is heated and softened to form an external force. The transparent cover 510 may be formed to have a planar area A1 and a bend area A1 by a thermoforming process with a thermoplastic material, for example, glass or a polymer based material. The transparent cover 510 by the thermoforming process may not have bending stresses (tensile stress and compressive stress) in the bending region A2. In the transparent cover 510, the residual stress that may occur after thermoforming can be substantially removed by a post-treatment process. The transparent cover 510 formed by the thermoforming process may further be subjected to a post-treatment process in which various coating layers are formed on the surface.

The display device 520 may include a plurality of panels (e.g., the plurality of panels 411 of FIG. 4). The display device 520 may include, for example, a polarizing layer 530, a touch panel 540, and / or a display panel 550. According to one embodiment, the display device 520 may include an adhesive member (or adhesive, adhesive) for mutually attaching the two layers of the respective panels and the transparent cover 510. The adhesive member may include, for example, a double-sided adhesive film, a pressure sensitive adhesive (PSA), an optical clear adhesive (OCA) or an optical clear resin (OCR) . For example, an upper adhesive layer 521 may be interposed between the transparent cover 510 and the polarizing layer 530, and a lower adhesive layer 522 may be interposed between the touch panel 540 and the display panel 550 have. The lower adhesive layer 522 has a function of shielding noise generated in the display panel 550, thereby minimizing the deterioration of the function of the touch panel 540. As described above, the display device 520 according to one embodiment may have a configuration in which the touch panel 540 is disposed between the display panel 550 and the polarizing layer 530. The touch panel 540 may be formed by forming a transparent electrode pattern on one surface of the polarizing layer 530 facing the display panel 550. A display device having such a laminated structure may be referred to as an on-cell type display device.

In a method of attaching the display device 520 to the transparent cover 510, the flat display device 520 may be attached to the transparent cover 510 by a roll forming method. The display device 520 stacked to follow the bend-shape of the transparent cover 510 may have a bending stress in the bend area A2. In addition, external impacts in the bending area A2 and / or the planar area A1 of the display device 520 may cause instantaneous strain on the display device 520, A bending stress may be generated within the bending stress.

Bending stress refers to the normal stress that occurs inside an object when a bending moment is applied to the object. The bending stresses may include tensile stresses and compressive stresses. The bending stress can be divided into the compressive stress in the inner region of the bending of the object and the tensile stress in the outer region based on the neutral plane. A neutral plane is a plane formed on the inside of an object. It means a plane which is bent while maintaining its original length without being stretched or shrunk when a bending moment is applied to the object. That is, the neutral plane means a plane whose strain is zero.

In the bending stress analysis for a multi-layer structure such as the display device 520, the members having high elastic modulus separated based on the relatively low elastic modulus members can be handled independently. The display panel 550 is a complex formed of a plurality of materials such as an inorganic film, and may have a modulus of elasticity of tens to hundreds of GPa. Alternatively, the lower adhesive layer 522 may have a modulus of elasticity of 0.3 to 15 kPA, for example, a transparent adhesive film for optical (OCA). That is, the elastic modulus of the lower adhesive layer 522 may be 10 6 times lower than the elastic modulus of the display panel 550. The laminate of the polarizing layer 530 and the touch panel 540 and the display panel 550 can be handled independently in the bending stress analysis by the second adhesive layer 522. [

According to one embodiment, the display panel 550 includes a substrate layer 551 (or a thin film transistor (TFT) layer) and a pixel layer 552 (or an organic light emitting layer) receiving a signal voltage from the substrate layer 551. [ . ≪ / RTI > The substrate layer 551 includes an active layer, a gate insulating film, a gate electrode, an interlayer insulating film, a source electrode, a drain electrode, and the like, and can transmit signals required for light emission of the pixel layer 552. The pixel layer 552 may include a plurality of display elements, for example, light emitting diodes. The pixel layer 552 may be defined as an area in which a plurality of organic display elements formed on the substrate layer 551 are disposed. For example, the pixel layer 552 may be formed of a patterned photoimageable polymer layer such as polyimide. The light emitting diodes may be formed in a plurality of openings in the pixel layer 552. The display panel 550 may further include any suitable components such as a thin film encapsulation layer that encapsulates the pixel layer 552.

Looking at the display panel 550, it can be seen that the neutral plane NP may not be located in the substrate layer 551 (or the thin film transistor layer) as only the display panel 550 is handled independently in bending stress analysis . The substrate layer 551 may be repeatedly applied with strain, or may be susceptible to impact exceeding the breaking strength and easily damaged. In order to prevent damage to the substrate layer 511 caused by an instantaneous deformation due to an external impact, the display panel 550 is formed so that a neutral surface is formed on a layer (or region) where the substrate layer 551 is disposed or an adjacent region thereof There is a need to design.

6 is a view showing a position where a neutral plane is formed when stress is applied to an object. Referring to FIG. 6, an object 600 can be divided into a first layer 610 and a second layer 620. The elastic modulus of the first layer 610 may be defined as E1, and the elastic modulus of the second layer 620 may be defined as E2.

In the case of Fig. 6A, it is assumed that E1 and E2 are the same. In this case, since the degree of deformation of the first layer 610 and the second layer 620 is equal to the deformation force, the neutral plane NP can be formed substantially at the intermediate position with respect to the thickness direction of the object.

In the case of Fig. 6 (b), it is assumed that E1> E2. In this case, since the degree of deformation of the first layer 610 is large, the neutral plane NP can be formed in the region of the first layer 610 which is higher than the middle in the thickness direction of the object. In this manner, the position at which the neutral plane NP is formed can be changed by adjusting the elastic modulus.

7 is a cross-sectional view of a display device according to one embodiment of the present disclosure; The display device 720 of FIG. 7 may include at least a portion of the same or similar configuration with the front housing 410 and the plurality of panels 411 of FIG. The detailed description of the redundant configuration is omitted.

7, an electronic device 700 according to one embodiment may include a display device 720 disposed underneath a transparent cover 710. According to one embodiment, the display device 720 may further include a polarizing layer 730, a touch panel 740, a display panel 750, and adhesive layers 721, 760 for attaching the respective layers. For example, the adhesive layer 760 interposed between the display panel 750 and the touch panel 740 may further include a neutral surface adjustment layer 762. The adhesive layer 760 may be divided into a first adhesive layer 761 (or a first adhesive member) and a second adhesive layer 763 (or a second adhesive member) with reference to the neutral plane adjustment layer 762.

The second adhesive layer 763 interposed between the display panel 750 and the neutral plane adjustment layer 762 is thicker than the other panels (e.g., the display panel 750 and the neutral plane adjustment layer 762) When constructed thin, it can be substantially neglected (according to membrane theory) in the analysis of bending stresses in multilayer structures. The thickness t3 of the second adhesive layer 762 is greater than the thickness t1 of the first adhesive layer 761 and the thickness t2 of the neutral surface adjustment layer 762 in the adhesive layer 760 according to one embodiment. It can be thin. In addition, the thickness t3 of the second adhesive layer 762 may be thinner than the thickness of the display panel 750. [ Accordingly, the laminate A (or the module) including the display panel 750, the neutral surface adjustment layer 762, and the second adhesive layer 763 can be handled together in the bending stress analysis. The display device 720 is treated as one laminate A including the neutral surface adjustment layer 762 and the second adhesive layer 763 so that the thickness of the neutral surface adjustment layer 762 The position of the neutral plane (NP) can be adjusted according to factors such as elastic modulus and thickness. On the other hand, the second adhesive layer 763 according to one embodiment may have a thickness of about 10 um to about 25 um. However, the embodiment is not limited to this, and the second adhesive layer 763 may be formed to have a thickness less than about 10 [mu] m as the technology develops. The second adhesive layer 763 may have a thickness greater than about 25 um, depending on design needs.

According to one embodiment, the neutral surface adjustment layer 762 is configured to have a high modulus of elasticity instead of the conventional adhesive layer (e.g., 522 in FIG. 5) May be located above the neutral plane (e.g., NP in Figure 5). That is, by laminating the adhesive layer 760 including the neutral surface adjustment layer 762 having a high elastic modulus on the upper surface of the display panel 750, the neutral plane NP is positioned above the existing neutral plane of the display device 720 (Or region) where the pixel layer 752 and / or the substrate layer 751 are disposed, or adjacent regions.

In addition, the neutral plane adjustment layer 762 may require good optical properties such as high transparency or high refractive index so that the user can easily view the screen displayed on the display panel. According to one embodiment, the neutral plane adjustment layer 762 may comprise an isotropic film. The isotropic film may include a COP (Cyclo Olefin Polymer) film and a CPP (Casting polypropylene) film. The isotropic film may be a film produced by a lead-free process. That is, the neutral plane adjustment layer 762 may include a non-oriented film. The film produced by the non-smelting process may have similar values of tensile strength in the longitudinal direction and in the transverse direction. Alternatively, the tensile elongation in the longitudinal direction and the transverse direction may have values similar to each other. For example, a CPP film can have a tensile strength of about 80 +/- 30 MPa in the longitudinal direction and about 60 +/- 20 MPa in the transverse direction. In addition, the CPP film can have a tensile elongation of about 650 +/- 300% in the longitudinal direction and about 850 +/- 300% in the transverse direction. Since the neutral plane adjustment layer 762 includes an isotropic film, retardation of light transmitted through the neutral plane adjustment layer 762 can be reduced. For example, the light transmitted through the neutral plane adjustment layer 762 may have a retardation of about 10 nm or less. Therefore, even if the neutral plane adjustment layer 762 is further included, the display device 720 may not suffer deterioration in performance such as distortion of light.

In some embodiments, the neutral plane adjustment layer 762 may comprise an anisotropic film. The anisotropic film may be made of triacetyl cellulose (TAC), a cyclic olefin polymer (COP), a cyclic olefin copolymer (COC), a polydicyclopentadiene (DCPD) But are not limited to, cyclopentadiene anions (CPD), polyarylate (PAR), polyethersulfone (PES), polyether imide (PEI), polyethylene terephthalate (PET) , Polycarbonate (PC), polymethyl methacrylate (PMMA), polyimide (PI), polyethylene terephthalate (PET), polypropylene terephthalate (PPT) Amorphous polyethylene terephthalate (APET), polyethylene naphthalate terephthalate, PEN), polyethylene terephthalate glycol (PETG), modified epoxy resin, or acrylic resin. The anisotropic film may be a film produced by a stretching process.

Isotropic films or anisotropic films that can constitute the above-described neutral surface control layer 762 may have a higher modulus of elasticity than typical adhesives, for example PSA, OCA, OCR. For example, a transparent adhesive film for optical (OCA) has an elastic modulus of approximately 0.3 to 15 kPA, whereas a CCP film may have an elastic modulus of approximately 600 to 900 MPa.

The neutral plane adjustment layer 762 may serve to absorb an external impact. The neutral plane adjustment layer 762 can prevent the display panel 750 from being damaged due to an external local impact transmitted through the transparent cover 710. [

As a result, the display device 720 is stacked adjacent to the display panel 750 and is formed using an adhesive layer (e.g., an adhesive layer 760) including a member having a high modulus of elasticity (e.g., a neutral surface adjustment layer 762) The neutral plane NP may be positioned in the layer (or region) where the substrate layer 751 included in the display panel 750 is disposed.

Although the above-described embodiments have been described with reference to an apparatus of an on-cell type display, the technical idea of using the neutral surface adjustment layer to position the neutral plane in a region vulnerable to deformation in the display apparatus is that the in- Display device or an add-on type display device.

FIG. 8 shows graphs showing the result of the quickness evaluation according to the thickness of the neutral surface control layer according to various embodiments. The simulations depicted in FIG. 8 may include components (e.g., a polarizing layer (730 of FIG. 7), a touch panel (e.g., FIG. 7 7), the display panel (750 in FIG. 7), and the adhesive layers (721, 760 in FIG. 7) are control variables and the first adhesive layer (761 in FIG. 7) The thickness of the neutral surface adjustment layer (762 in Figure 7) and the thickness of the second adhesive layer (763 in Figure 7) were manipulated. In simulations, the transparent cover was about 500 um, the top adhesive layer was about 150 um, The thickness of the second adhesive layer is fixed to about 10 μm as shown in Table 1 below. The thickness of the second adhesive layer is fixed to about 10 μm, as shown in Table 1 below. And the thickness of the neutral-plane control layer was changed to about 25 μm, about 50 μm, and about 100 μm.

standard Example 1 Example 2 Example 3 The first adhesive layer 125 90 65 15 The neutral- - 25 50 100 The second adhesive layer - 10

In the first simulation, a display device according to each of the embodiments was placed on a stone quartz plate, and local impact was applied with different strengths. In the first simulation, the lithotripsy includes a recess at a position corresponding to the location where a local impact is applied, so that the display device can be flexibly deformable to local impact. Referring to Graph 1 showing the result of the first simulation, it can be seen that as the thickness of the neutral plane adjusting layer increases, resistance to local impact also increases. That is, by adjusting the thickness of the neutral plane adjustment layer and arranging the neutral plane in the region of the substrate layer of the display panel, the strength of the display device can be increased.

In the second simulation, the display device according to each of the embodiments was placed on a flat stone-free bench without grooves, and a local impact with different strength was applied. That is, the second simulation can confirm the impact resistance when the deformation due to the local impact is limited. Referring to Graph 2 showing the results of the second simulation, it can be confirmed that the average resistance against local impact is similar in each embodiment. However, it can be seen that the error range of the evaluation values is smaller as the neutral plane adjusting layer becomes thicker. That is, by adjusting the thickness of the neutral plane adjustment layer and arranging the neutral plane in the region of the substrate layer of the display panel, the reliability of the display device can be improved.

In the third simulation, the display device according to each example was placed on a plain stone bench, and a ball drop test was conducted on the back surface of the display device. Graph 3 showing the result of the third simulation shows that as the thickness of the neutral plane adjusting layer increases, the impact resistance against the local impact applied to the back surface of the display device increases.

Figure 9 shows another example of a neutral surface control layer according to one embodiment. The display device 920 of FIG. 9 may include at least a portion of the same or similar configuration with the front housing 410 and the plurality of panels 411 of FIG. The detailed description of the redundant configuration is omitted.

9, an electronic device 900 may include a display device 920 disposed below a transparent cover 910, according to one embodiment. The display device 920 further includes a polarizing layer 930, a touch panel 940, a display panel 950, and adhesive layers 921 and 960 for attaching the respective layers.

The display device 920 can have a force (bending resistance moment) to be restored to a flat state again as a relative force of the bending stress, in the bending area A2. That is, at least one or all of each of the respective panels of the display device 920 may have a repulsive force F, such as a repulsive force, for the transparent cover 910. This repulsive force F may constitute the display device 920 and cause separation between the respective panels attached by the adhesive layer. Such detachment or separation may be manifested in various forms in the electronic device 900, such as blistering phenomenon and lifting phenomenon.

The adhesive layer 960 (or a composite layer) sandwiched between the display panel 750 and the touch panel 740 may further include the neutral surface control layers 963a, 963b, and 963c . The adhesive layer 960 may be divided into a first adhesive layer 961 and a second adhesive layer 962 with reference to the neutral plane adjusting layers 963a, 963b, and 963c. Each of the neutral surface control layers 963a, 963b, 963c may be attached by third adhesive layers 964a, 964b. That is, the adhesive layer 960 may include a laminate in which a plurality of neutral surface control layers and adhesive layers are cross-laminated. The laminate of the plurality of neutral surface control layers 963a, 963b and 963c is formed such that the thickness t4 of the laminate is the same as the thickness of the single neutral surface control layer (for example, 762 in Fig. 7) Of t2), it can have greater flexibility than when implemented with a single neutral surface control layer. Therefore, the repulsive force in the bending area A2 can be reduced, and the separation phenomenon of the adhesive layer 960 including the elastic surface control layers 963a, 963b, and 963c can be suppressed. According to one embodiment, each of the elastic surface control layers 963a, 963b, and 963c may include any one of isotropic films and / or anisotropic films, or a combination of two or more thereof. 9 illustrates a multi-layered structure in which the neutral-plane-adjustment layers 963a, 963b, and 963c are implemented in three layers, but the embodiment is not limited thereto, and the neutral-plane adjustment layers 963a, 963b, And may have an appropriate thickness and number of layers.

In a display device (e.g., 720 of FIG. 7) according to various embodiments of the present disclosure, a polarizing layer (e.g., 730 of FIG. 7); A display panel (e.g., 750 of FIG. 7) that includes a plurality of pixels and a substrate layer that drives the pixels; And an adhesive layer (e.g., 760 in Fig. 7) disposed between the polarizing layer and the display panel, wherein the adhesive layer includes: a first adhesive member (e.g., 761 in Fig. 7) disposed under the polarizing layer; A second adhesive member (e.g., 763 in Fig. 7) disposed on the display panel; And a neutral surface adjustment member (e.g., 762 in FIG. 7) disposed between the first adhesive member and the second adhesive member, wherein a layer on which the substrate layer is disposed includes at least the neutral surface adjustment member, The first adhesive member, the second adhesive member, and the module including the display panel (e.g., A of FIG. 7).

The display device according to one embodiment may further include a touch sensor (e.g., 730 in FIG. 7) disposed between the polarizing layer and the adhesive layer.

In a display device according to an embodiment, the thickness of the first adhesive member may be greater than the thickness of the second adhesive member.

In a display device according to an embodiment, the neutral plane adjusting member may be composed of an isotropic transparent member. The isotropic transparent member may include at least one of a COP (cyclo olefin polymer) film and a CPP (casting polypropylene) film.

The polarizing layer according to an embodiment may include a plurality of wires for sensing a touch input.

The display device according to an exemplary embodiment of the present invention is characterized in that the neutral plane adjusting member is a triacetyl cellulose (TAC), a cyclic olefin polymer (COP), a cyclic olefin copolymer (COC) , Polydicyclopentadiene (DCPD), cyclopentadiene anions (CPD), polyarylate (PAR), polyethersulfone (PES), polyether imide (PEI) ), Polyethylene terephthalate (PET), polycarbonate (PC), polymethyl methacrylate (PMMA), polyimide (PI), polyethylene terephthalate (PET) Polypropylene terephthalate (PPT), amorphous polyethylene terephthalate (APET), polynaphthalene terephthalate A film formed of any one or a combination of two or more selected from polyethylene naphthalate terephthalate (PEN), polyethylene terephthalate glycol (PETG), modified epoxy resin or acrylic resin.

In the display device according to one embodiment, the adhesive layer may further include another second neutral surface adjustment member (e.g., 963a to 963c in Fig. 9).

In the display device according to an embodiment, the neutral plane adjusting member may have a modulus of elasticity greater than that of the first adhesive member and the second adhesive member.

In the display device according to an exemplary embodiment, the modulus of elasticity of the neutral surface regulating member may be 10 3 times or more of the elastic modulus of the first adhesive member and the second adhesive member.

In the display device according to one embodiment, the elastic modulus of the display panel may be 10 6 times or more of the elastic modulus of the first adhesive member and the second adhesive member.

The display device according to one embodiment may include a bending portion at least in part.

An electronic device according to various embodiments includes a housing (e.g., 210 of FIG. 2) including a first side (e.g., 2001 in FIG. 2) and a second side spaced from the first side , 220, 230); (E.g., A1 in FIG. 2) and a bend extending from the plane portion (e.g., A2 in FIG. 2), and a transparent cover shaped to form at least a portion of the first surface : 710 in Fig. 7); A display panel (e.g., 750 of FIG. 7) disposed (or interposed) between the second surface and the transparent cover; A polarizing layer (e.g., 730 in Fig. 7) disposed between the transparent cover and the display panel; And a composite layer (e.g., 760 in FIG. 7) disposed between the polarizing layer and the display panel, the composite layer including a neutral plane adjustment member Example: 762 in FIG. 7); A first adhesive member (e.g., 761 in Fig. 7) disposed between the polarizing layer and the neutral plane adjustment member; And a second adhesive member (e.g., 763 in Fig. 7) disposed between the neutral plane adjustment member and the display panel.

In an electronic device according to an embodiment, the neutral plane adjustment member may include a neutral plane of the module including the neutral plane adjustment member, the second adhesion member, and the display panel, And may be arranged to correspond to a layer on which the substrate layer is disposed.

The electronic device according to an embodiment may further include a touch sensor disposed between the polarizing layer and the multiple layer.

In the electronic device according to the embodiment, the thickness of the first adhesive member may be larger than the thickness of the second adhesive member.

In an electronic device according to an embodiment, the neutral plane adjusting member may include at least one of a cyclo olefin polymer (COP) film and a casting polypropylene (CPP) film.

In an electronic device according to an embodiment, the neutral plane regulating member is a triacetyl cellulose (TAC), a cyclic olefin polymer (COP), a cyclic olefin copolymer (COC) ), Polydicyclopentadiene (DCPD), cyclopentadiene anions (CPD), polyarylate (PAR), polyethersulfone (PES), polyether imide (PEI), polyethylene terephthalate (PET), polycarbonate (PC), polymethyl methacrylate (PMMA), polyimide (PI), polyethylene terephthalate ), Polypropylene terephthalate (PPT), amorphous polyethylene terephthalate (APET), polyaniline Talren terephthalate may include (polyethylene terephthalate naphthalate, PEN), polyethylene terephthalate, glycerol (polyethylene terephthalate glycol, PETG), modified epoxy resins, or any one or a film formed of a combination of two or more selected from acrylic resin.

9), and a plurality of adhesive members (e.g., 964a-094c of FIG. 9) cross each other to form a plurality of neutral plane adjustment members (e.g., 963a-963c of FIG. 9) Can be stacked.

In the electronic device according to an embodiment, the neutral plane adjustment member may have a greater elastic modulus than the first adhesive member and the second adhesive member.

In an electronic device according to an embodiment, the elastic modulus of the display panel may be 10 6 times or more times the first adhesive member and the second adhesive member.

In an electronic device according to an embodiment, the display panel, the polarizing layer, and the composite layer may extend in conformity with the shape of the bent portion of the transparent cover.

A display device according to an embodiment, comprising: a polarizing layer; A display panel including a plurality of pixels and a substrate layer for driving the plurality of pixels; And an adhesive layer disposed between the polarizing layer and the display panel, wherein the adhesive layer comprises: a first adhesive member having a first thickness disposed below the polarizing layer; A second adhesive member disposed on the display panel and having a second thickness; And a transparent member disposed between the first adhesive member and the second adhesive member, wherein the transparent member has a layer on which the substrate layer is disposed, the transparent member, the second adhesive member, and the display panel May be arranged to correspond to the neutral plane of the containing module.

Again, it is to be understood that the various embodiments of the disclosure disclosed herein and in the drawings are illustrative only and are not intended to limit the scope of the present disclosure, no. Accordingly, the scope of the present disclosure should be construed as being included within the scope of the present disclosure in addition to the embodiments disclosed herein, all changes or modifications derived from the technical idea of the present disclosure.

Claims (20)

In the display device,
A polarizing layer;
A display panel comprising a substrate layer comprising a pixel layer comprising a plurality of pixels, and a substrate layer for driving the plurality of pixels; And
And an adhesive layer disposed between the polarizing layer and the display panel,
A first adhesive member disposed under the polarizing layer;
A second adhesive member disposed on the display panel; And
Wherein the neutral plane regulating member comprises a neutral plane regulating member,
A display panel disposed between the first adhesive member and the second adhesive member such that a neutral plane of the module including the neutral plane adjustment member, the second adhesive member, and the display panel corresponds to the substrate layer; Device.
The method according to claim 1,
And a touch sensor disposed between the polarizing layer and the adhesive layer.
The method according to claim 1,
Wherein a thickness of the first adhesive member is larger than a thickness of the second adhesive member.
The method of claim 1, wherein
Wherein the neutral plane adjusting member is made of an isotropic transparent member.

The method according to claim 1,
Wherein the polarizing layer includes a plurality of wires for sensing a touch input.

The method according to claim 1,
Wherein the adhesive layer further comprises another neutral plane adjustment member.
The method according to claim 1,
Wherein the neutral plane adjusting member has a modulus of elasticity greater than a modulus of elasticity of the first adhesive member and the second adhesive member.
8. The method of claim 7,
Wherein the modulus of elasticity of the neutral plane regulating member is at least 10 3 times the modulus of elasticity of the first adhesive member and the second adhesive member,
The method according to claim 1,
Wherein a modulus of elasticity of the display panel is 10 6 times or more of a modulus of elasticity of the first adhesive member and the second adhesive member.
The method according to claim 1,
Wherein the display device includes a bending portion at least in part.
In an electronic device,
A housing including a first side and a second side spaced from the first side;
A transparent cover that includes at least a portion of the bend and is shaped to form at least a portion of the first surface;
A display panel disposed between the second surface and the transparent cover;
A polarizing layer disposed between the transparent cover and the display panel; And
And an adhesive layer disposed between the polarizing layer and the display panel,
The adhesive layer
A neutral plane adjustment member disposed between the polarizing layer and the display panel;
A first adhesive member disposed between the polarizing layer and the neutral plane adjusting member; And
And a second adhesive member disposed between the neutral plane regulating member and the display panel.
12. The image forming apparatus according to claim 11,
Wherein a neutral plane of the module including the neutral plane adjustment member, the second adhesive member, and the display panel corresponds to a layer where a substrate layer included in the display panel is disposed.
12. The method of claim 11,
And a touch sensor disposed between the polarizing plate and the multiple layer.
12. The method of claim 11,
Wherein the thickness of the first adhesive member is larger than the thickness of the second adhesive member.


12. The method of claim 11,
Wherein the neutral plane regulating member is cross-laminated with a plurality of neutral surface regulating members and a plurality of adhesive members.
12. The method of claim 11,
Wherein the neutral plane adjustment member has a greater elastic modulus than the first adhesive member and the second adhesive member.
12. The electronic device of claim 11, wherein the display panel, the polarizing layer, and the composite layer extend in conformity with the shape of the bent portion of the transparent cover.
In the display device,
A polarizing layer;
A display panel including a plurality of pixels and a substrate layer for driving the plurality of pixels; And
And an adhesive layer disposed between the polarizing layer and the display panel,
A first adhesive member having a first thickness disposed below the polarizing layer;
A second adhesive member disposed on the display panel and having a second thickness; And
A transparent member is disposed between the first adhesive member and the second adhesive member, and the transparent member includes a layer in which the substrate layer is disposed, the transparent member, the second adhesive member, and the display panel The display device being arranged to correspond to a neutral plane of the module.
19. The method of claim 18,
Wherein the second thickness is smaller than the first thickness.
19. The method of claim 18,
Wherein the transparent member has a greater elastic modulus than the first adhesive member and the second adhesive member.

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