CN116096139A - Display screen and electronic equipment - Google Patents

Abstract

The invention discloses a display screen and electronic equipment. The display screen comprises a lower glass, a connecting piece, an upper glass and a polarizing layer, the connecting piece is arranged on the lower glass, and the upper glass is arranged on the connecting A chamber is defined between the upper layer of glass, the connecting member and the lower layer of glass, the polarizing layer is arranged in the chamber, and the polarizing layer has an upper surface and a lower surface opposite to each other in the up-down direction. The lower surface of the polarizer abuts against the upper surface of the lower glass, and the upper surface of the polarizer abuts against the lower surface of the upper glass. The display screen of the embodiment of the present invention and the electronic device having the display screen have the advantages of low risk of broken screen, small thickness and the like.

Description

Displays and Electronics

technical field

The invention relates to the technical field of display screens, in particular to a display screen and electronic equipment.

Background technique

Glass-encapsulated OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode) display, including lower glass, upper glass, polarizer and cover plate, the lower glass is set on the upper glass, the edges of the lower glass and the upper glass are connected by colloid, polarized The sheet is arranged on the upper glass, and the cover is arranged on the polarizer. Because there is a gap between the upper glass and the lower glass, during the production or use of the display screen, when one of the upper glass and the lower glass is stressed, the force can only be transmitted to the upper glass and the lower glass through the colloid. The other one, which in turn makes the edges of the upper glass and the lower glass prone to stress concentration, and the display screen has a technical problem of high risk of broken screen.

Contents of the invention

The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

For this reason, embodiments of the present invention propose a display screen to solve the technical problem of high risk of broken screen.

Embodiments of the present invention also provide an electronic device to solve the technical problem of high risk of broken screen.

The display screen of the embodiment of the present invention includes:

lower glass;

a connecting piece, the connecting piece is arranged on the lower layer of glass;

an upper pane of glass disposed on the connecting piece, wherein a chamber is defined between the upper pane of glass, the connecting piece, and the lower pane of glass; and

A polarizing layer, the polarizing layer is arranged in the chamber, the lower surface of the polarizing layer is against the lower glass, and the upper surface of the polarizing layer is against the upper glass.

The display screen of the embodiment of the present invention has the advantages of low risk of broken screen and small thickness.

In some embodiments, the polarizing layer is a liquid crystal layer.

In some embodiments, the liquid crystal layer is obtained by coating a liquid crystal material on one of the lower glass and the upper glass.

In some embodiments, the liquid crystal layer includes a plurality of liquid crystal molecules, one of the lower glass and the upper glass is placed in an electric field, and the lower glass or the upper glass in the electric field is coated with distributing liquid crystal material to form the liquid crystal layer in which the alignment directions of the liquid crystal molecules are consistent.

In some embodiments, the thickness of the polarizing layer is 3 μm-5 μm.

In some embodiments, the material of the polarizing layer is PVA.

In some embodiments, the polarizing layer fills the cavity.

In some embodiments, the connecting member is a hollow connecting frame, so that the chamber defined between the lower glass, the connecting member and the upper glass is a sealed chamber.

In some embodiments, the connector is glue.

In some embodiments, the display screen also includes:

a cover plate disposed on the upper glass; and

An optical adhesive layer, the optical adhesive layer is located between the cover plate and the upper glass in the up-down direction, the upper surface of the optical adhesive layer is connected to the cover plate, and the lower surface of the optical adhesive layer is connected to the upper glass The upper layer of glass is connected.

The electronic equipment of the embodiment of the present invention includes:

shell; and

A display screen, the display screen cover is mounted on the housing, and the display screen is the display screen described in any one of the embodiments of the present invention.

The electronic device in the embodiment of the present invention has the advantages of low risk of broken screen, small thickness and the like.

Description of drawings

Fig. 1 is a schematic structural diagram of a display screen according to an embodiment of the present invention.

FIG. 2 is a schematic structural view of FIG. 1 with the cover plate and the optical adhesive layer hidden.

FIG. 3 is a schematic structural diagram of a display screen in the related art.

FIG. 4 is a schematic structural view of FIG. 3 with the cover plate and the optical adhesive layer hidden.

Reference signs:

display screen 100;

lower glass 1;

upper glass 2;

connector 3;

chamber 4;

Polarizing layer 5;

cover plate 6;

Optical glue layer 7;

Foam 8;

lower glass 11;

upper glass 21;

Plastic frame 31;

gap 41;

Polarizer 51; Upper protective layer 511; Polarizer layer 512; Lower protective layer 513; Compensation film 514; Adhesive layer 515;

cover plate 61;

Optical glue layer 71 .

Detailed ways

The present invention is based on the inventor's discovery and recognition of the following facts and problems:

For example, as shown in FIG. 3 and FIG. 4 , in the related art, a display screen includes a lower glass 11 , a plastic frame 31 , an upper glass 21 , a polarizer 51 , an optical adhesive layer 71 and a cover plate 61 . The edge of the lower glass 11 and the edge of the upper glass 21 are connected by a glue frame 31 , and a gap 41 is formed between the lower glass 11 and the upper glass 21 . The polarizer 51 is disposed on the upper glass 21 , and the cover plate 61 and the polarizer 51 are connected by an optical glue layer 71 .

On the one hand, because there is a gap 41 between the upper glass 21 and the lower glass 11, during the production or use of the display screen, when one of the upper glass 21 and the lower glass 11 is stressed, it can only be placed through the plastic frame 31. The force is transmitted to the other of the upper glass 21 and the lower glass 11 , so that stress concentration tends to occur at the edges of the upper glass 21 and the lower glass 11 , resulting in a high risk of broken screens.

On the other hand, the polarizer 51 usually adopts a conventional polarizer with a multilayer structure. For example, the polarizer 51 includes an upper protective (TAC) layer 511 , a polarizer (PVA) layer 512 , a lower protective (TAC) layer 513 , a compensation film 514 and a glue (PSA) layer 515 . The upper protection layer 511 , the polarizer layer 512 , the lower protection layer 513 , the compensation film 514 and the glue layer 515 are connected in order from top to bottom. The polarizer 51 is integrally arranged on the upper glass 21, so that the overall thickness of the display screen is relatively large, which is not conducive to the light and thin design of electronic equipment.

Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

As shown in FIG. 1 and FIG. 2 , the display screen 100 of the embodiment of the present invention includes a lower glass 1 , an upper glass 2 , a connector 3 and a polarizing layer 5 .

The connecting piece 3 is set on the lower glass 1 , the upper glass 2 is set on the connecting piece 3 , and a cavity 4 is defined between the upper glass 2 , the connecting piece 3 and the lower glass 1 . In other words, the connector 3 has an upper end and a lower end opposite to each other in the vertical direction, the lower end is connected to the lower glass 1, the upper end is connected to the upper glass 2, the lower surface of the upper glass 2, the upper surface of the lower glass 1 and the connecting piece 3 define a chamber 4 between them. Wherein, the up-down direction is shown in FIG. 1 .

The polarizing layer 5 is arranged in the cavity 4, the polarizing layer 5 has an upper surface and a lower surface opposite in the vertical direction, the lower surface of the polarizing layer 5 is against the lower glass 1, and the upper surface of the polarizing layer 5 is against the upper layer Glass 2 on.

When the electronic equipment with the display screen 100 is assembled, when the upper glass 2 is stressed, part of the force received by the upper glass 2 can be transmitted to the lower glass 1 through the connecting piece 3, and another part of the force received by the upper glass 2 then it can be transmitted to the lower glass 1 through the polarizing layer 5; It is transmitted to the upper glass 2 through the polarizing layer 5; or, when the user uses the electronic device with the display screen 100, when the upper glass 2 is stressed, a part of the force received by the upper glass 2 can be transmitted to the lower glass through the connecting piece 3 1. Another part of the force received by the upper glass 2 can be transmitted to the lower glass 1 through the polarizing layer 5.

For example, the edge part of the upper glass 2 and the edge part of the lower glass 1 are connected by the connecting piece 3, and the cavity 4 corresponds to the middle part of the upper glass 2 and the middle part of the lower glass 1. Part of the force received by the upper glass 2 can be transmitted to the edge of the lower glass 1 through the edge portion of the upper glass 2 and the connector 3; the other part of the force received by the upper glass 2 can pass through the middle part of the upper glass 2 and polarized The layer 5 is transferred to the middle part of the lower pane 1 . In addition, part of the force received by the lower glass 1 can be transmitted to the edge of the upper glass 2 through the edge portion of the lower glass 1 and the connecting piece 3; another part of the force received by the lower glass 1 can pass through the middle part of the lower glass 1 And the polarizing layer 5 is transmitted to the middle part of the upper glass 2 .

Thus, when one side of the display screen 100 is stressed, the edge and middle portions of the upper glass 2 and the lower glass 1 are both stressed, so that the upper glass 2 and the lower glass 1 are evenly stressed. Furthermore, the stress concentration phenomenon of the upper glass 2 and the lower glass 1 can be reduced or even avoided, and the overall strength of the display screen 100 is improved, thereby reducing the screen shattering risk of the display screen 100 and electronic equipment having the display screen 100 .

In addition, as shown in FIG. 1 and FIG. 2 , the polarizing layer 5 is disposed in the chamber 4 , that is, the polarizing layer 5 and the chamber 4 share the same space. Compared with the related art where the polarizer 51 and the gap 41 occupy different spaces (as shown in FIG. 3 and FIG. 4 ), the overall thickness of the display screen 100 can be greatly reduced.

Therefore, the display screen 100 of the embodiment of the present invention has the advantages of low risk of broken screen and small thickness.

The display screen 100 in the embodiment of the present invention may be a display screen of a mobile phone or a display screen of a tablet computer or the like.

The above-mentioned polarizing layer 5 is arranged in the chamber 4, so that the display screen 100 looks like a POL-less (no polarizer) structure structurally, as shown in the dotted line in FIG.

In some embodiments, the polarizing layer 5 is a liquid crystal layer. The liquid crystal layer has a polarizing function and an anti-reflection function, that is, the liquid crystal layer has dual functions of a polarizer layer and a compensation film of a conventional polarizer.

On the one hand, compared with conventional polarizers in the related art (as shown in FIG. 4 ), the structure of the liquid crystal layer is simpler, which is conducive to improving the assembly efficiency of the display screen 100 and the production efficiency of electronic equipment with the display screen 100. Therefore, the cost of the display screen 100 and the electronic equipment with the display screen 100 is reduced.

On the other hand, the thickness of the liquid crystal layer is smaller, so that the size of the chamber 4 in the up and down direction is smaller, which is conducive to further reducing the overall thickness of the display screen 100 and the electronic device with the display screen 100, and is conducive to the thinness of the electronic device. design.

In addition, the liquid crystal layer also has the characteristics of light weight and long continuous use time, which can better meet the needs of users.

In some embodiments, the polarizing layer 5 fills the cavity 4 . In other words, the entire cavity 4 is filled with the polarizing layer 5 .

Therefore, the area of the polarizing layer 5 is larger, which is beneficial to improving the overall display effect of the display screen 100 and improving user experience.

In addition, the polarizing layer 5 fills the cavity 4 so that the lower surface of the polarizing layer 5 is adsorbed on the upper surface of the lower glass 1 , and the upper surface of the polarizing layer 5 is adsorbed on the lower surface of the upper glass 2 . The surface tension bonding effect of the liquid crystal layer can further reduce the stress concentration phenomenon at the edge of the display screen 100 when the whole machine is dropped, thereby further reducing the risk of broken screens of the display screen 100 and electronic equipment having the display screen 100 .

Optionally, the material of the polarizing layer 5 is PVA. In other words, the polarizing layer 5 is liquid crystal PVA.

Therefore, the liquid crystal PVA has the characteristics of light weight, small volume and long service time. The polarizing layer 5 is made of PVA material, which makes the display screen 100 lighter in weight, smaller in size and longer in continuous use. The electronic device with the display screen 100 is light in weight, small in size and has a long battery life (at least six hours of video recording), which can better meet the practical needs of users and improve user experience.

For example, the electronic device is an electronic device that integrates multiple functions such as camera, camera, and audio recording.

Optionally, a liquid crystal layer is obtained by coating a liquid crystal material on one of the lower glass 1 and the upper glass 2 .

For example, the liquid crystal layer is formed using one of a slot die coating method, an extrusion die coating method, and a doctor blade coating method.

Thus, it is convenient to arrange the liquid crystal layer between the lower glass 1 and the upper glass 2, which is beneficial to improve the manufacturing efficiency of the display screen.

Optionally, the liquid crystal layer includes a plurality of liquid crystal molecules, and a corresponding one of the lower glass 1 and the upper glass 2 is placed in an electric field, and a liquid crystal material is coated on the lower glass 1 or the upper glass 2 in the electric field to form a liquid crystal A liquid crystal layer with the same molecular alignment direction, and the liquid crystal layer has a circular polarization effect.

For example, the lower glass 1 is placed in an electric field, and liquid crystal is coated on the lower glass 1, thereby forming a circularly polarized liquid crystal layer on the lower glass 1 with liquid crystal molecules aligned in the same direction. This liquid crystal layer is the polarizing layer 5 , and then the upper layer of glass 2 is connected to the lower layer of glass 1 through the connecting piece 3 . Alternatively, the upper glass 2 is placed in an electric field, and liquid crystal is coated on the upper glass 2, thereby forming a circularly polarized liquid crystal layer with liquid crystal molecules aligned in the same direction on the upper glass 1, and then the lower glass 1 and the upper glass 2 are connected by connecting piece 3.

Thus, it is more convenient to arrange the liquid crystal layer between the lower glass 1 and the upper glass 2, which is beneficial to improve the production efficiency of the display screen.

In some embodiments, the thickness of the polarizing layer 5 is 3 μm-5 μm, in other words, the size of the chamber 4 in the vertical direction is 3 μm-5 μm.

For example, the thickness of the polarizing layer 5 is 3 μm, and the size of the chamber 4 in the vertical direction is 3 μm, so that the polarizing layer 5 fills the chamber 4 .

Therefore, the overall thickness of the display screen 100 is reduced, which is beneficial to the thinner and lighter design of the electronic device having the display screen 100 .

In some embodiments, the connector 3 is glue.

For example, the connecting piece 3 is glass glue (frit glue).

When assembling with the display screen 100, a layer of glue can be applied to the edge of the upper surface of the lower glass 1, and the polarizing layer 5 is placed in the space surrounded by the glue, and then the upper glass 2 is placed on the 1 on the lower layer of glass. After the glue is solidified into a colloid, the upper glass 2 and the lower glass 1 are bonded together through the colloid.

Therefore, the assembly of the display screen 100 is facilitated, which is beneficial to improve the assembly efficiency of the display screen 100 and the production efficiency of the electronic device having the display screen 100 , thereby reducing the cost of the display screen 100 and the electronic device having the display screen 100 .

In some embodiments, the connecting member 3 is a hollow connecting frame, so that the lower glass 1 , the connecting member 3 and the upper glass 2 and the chamber 4 defined therebetween are sealed chambers.

For example, both the lower glass 1 and the upper glass 2 are rectangular glasses, the connecting piece 3 is a rectangular frame, and the chamber 4 defined between the lower glass 1, the upper glass 2 and the connecting piece 3 is a cubic sealed chamber.

Thus, it is possible to prevent external water vapor or impurities from entering the chamber 4 . Therefore, damage to the display screen 100 caused by water vapor or impurities entering the chamber 4 is avoided, which is beneficial to prolonging the service life of the display screen 100 .

During specific implementation, a circle of glue can be coated on the edge of one of the lower glass 1 and the upper glass 2, and then on the corresponding one of the lower glass 1 and the upper glass 2, the inside of the glue is coated with a full liquid crystal layer, and then The other of the lower glass 1 and the upper glass 2 is covered on the glue solution and the liquid crystal layer, and after the glue is solidified, a stable connection between the lower glass 1 and the upper glass 2 is realized.

In some embodiments, the lower surface of the polarizing layer 5 is connected to the lower glass 1 , and the upper surface of the polarizing layer 5 is connected to the upper glass 2 .

Thus, when the electronic device with the display screen 100 is assembled or the user uses the electronic device with the display screen 100, when the upper glass 2 is stressed, the force received by the upper glass 2 is more easily transmitted to the glass through the polarizing layer 5. The lower glass 1 , and the force received by the lower glass 1 is more easily transmitted to the upper glass 2 through the polarizing layer 5 .

Therefore, when one side of the display screen 100 is stressed, the force on the upper glass 2 and the lower glass 1 is more uniform, which is conducive to further reducing the stress concentration phenomenon of the upper glass 2 and the lower glass 1, and further reducing the display screen 100 and the display screen 100. 100% risk of broken screen of electronic equipment.

In some embodiments, the display screen 100 further includes a cover plate 6 and an optical adhesive layer 7, the optical adhesive layer 7 has an upper surface and a lower surface opposite in the vertical direction, the upper surface of the optical adhesive layer 7 is connected to the cover plate 6, The lower surface of the optical adhesive layer 7 is connected with the upper glass 2 .

As shown in FIG. 3 , in the related art, the polarizing layer 51 is disposed on the upper glass 21 , and the cover plate 61 and the upper glass 21 are connected by an optical glue layer 71 . When the display screen is a perforated screen, it is necessary to open a light-transmitting hole on the display screen to allow light to enter the front camera under the display screen, and it is also necessary to consider the thickness difference of the opening position of the optical adhesive layer 71 to absorb the polarizer , it is often necessary to set the thickness of the optical adhesive layer 71 corresponding to the light transmission hole to twice the thickness of the optical adhesive layer 71 at the non-open hole.

As shown in Figure 1, the polarizing layer 5 of the display screen 100 in the embodiment of the present invention is arranged between the upper glass 2 and the lower glass 1. It will be located above the upper layer of glass 2 and will not extend to the polarizing layer 5 . Therefore, for the case where the display screen 100 is a perforated screen, there is no need to consider the problem of the difference in thickness of the opening position of the absorbing polarizer of the optical adhesive layer 7 . On the one hand, it is beneficial to further reduce the thickness of the display screen 100 and the electronic equipment having the display screen 100; Production costs of electronic equipment.

In some embodiments, the display screen 100 includes foam 8 disposed on the lower surface of the lower glass 1 . In other words, the foam 8 is arranged on the side of the lower glass 1 away from the connecting piece 3 .

For example, when the display screen 100 is squeezed or dropped during assembly or use, the foam 8 can cushion and protect the display screen 100, which is beneficial to further reduce the size of the display screen 100 and electronic equipment with the display screen 100. risk of broken screen.

As shown in Fig. 1 and Fig. 2, the display screen 100 of the embodiment of the present invention adopts the method of placing the liquid crystal layer between the two layers of glass (upper glass 2 and lower glass 1) of the glass-encapsulated display screen, and removes the liquid crystal layer arranged above the upper glass. The conventional polarizer reduces the thickness of the screen by about 0.11mm. Moreover, the surface tension of the liquid crystal layer is used to bond to reduce the force on the edge glass glue when the whole machine is dropped, so as to solve the pain point of hard-screen electronic equipment that is easy to break the screen.

The above-mentioned liquid crystal layer is different from conventional polarizers. Conventional polarizers arrange the iodine pigment in the polarizers in the direction of stretching to form a grating by stretching, so that the angle of light flux is fixed; The control of the arrangement achieves the control of the arrangement of the pigments, and finally forms an orderly light flux angle.

The electronic device in the embodiment of the present invention includes a casing and a display screen 100, the display screen 100 is the display screen 100 described in any of the above embodiments, and the display screen 100 is covered on the casing.

Therefore, the electronic device of the embodiment of the present invention has the advantages of low risk of broken screen and small thickness.

The electronic device can be a mobile phone or a tablet computer, etc.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or element Must be in a particular orientation, be constructed in a particular orientation, and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; can be mechanically connected, can also be electrically connected or can communicate with each other; can be directly connected, can also be indirectly connected through an intermediary, can be the internal communication of two components or the interaction relationship between two components, unless expressly defined otherwise. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first and second feature may be in direct contact with the second feature through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

As used herein, the terms "one embodiment," "some embodiments," "example," "specific examples," or "some examples" mean specific features, structures, materials, or features described in connection with the embodiment or example. A feature is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (11)

1. A display screen, comprising:

a lower layer of glass;

the connecting piece is arranged on the lower glass layer;

the upper glass layer is arranged on the connecting piece, and a cavity is defined among the upper glass layer, the connecting piece and the lower glass layer; and

and the polarizing layer is arranged in the cavity, the lower surface of the polarizing layer is abutted against the lower glass layer, and the upper surface of the polarizing layer is abutted against the upper glass layer.

2. The display screen of claim 1, wherein the polarizing layer is a liquid crystal layer.

3. A display screen according to claim 2, wherein the liquid crystal layer is obtained by coating a liquid crystal material on one of the lower glass and the upper glass.

4. A display screen according to claim 3, wherein the liquid crystal layer comprises a plurality of liquid crystal molecules, one of the lower glass and the upper glass is subjected to an electric field, and a liquid crystal material is coated on the lower glass or the upper glass in the electric field to form the liquid crystal layer in which the liquid crystal molecules are aligned in a uniform direction.

5. A display screen according to any of claims 1-4, wherein the polarizing layer has a thickness of 3-5 μm.

6. The display screen of any one of claims 1-4, wherein the polarizing layer is PVA.

7. The display screen of any one of claims 1-4, wherein the polarizing layer fills the cavity.

8. The display screen of any one of claims 1-4, wherein the connector is a hollow connector frame such that a chamber defined between the lower glass, the connector, and the upper glass is a sealed chamber.

9. The display screen of any one of claims 1-4, wherein the connector is a gel.

10. The display screen of any one of claims 1-4, further comprising:

the cover plate is arranged on the upper layer glass; and

the optical adhesive layer is positioned between the cover plate and the upper glass layer in the up-down direction, the upper surface of the optical adhesive layer is connected with the cover plate, and the lower surface of the optical adhesive layer is connected with the upper glass layer.

11. An electronic device, comprising:

a housing; and

a display screen, the display screen being mounted on the housing, the display screen being in accordance with any one of claims 1 to 10.

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