TWI648664B - Display screen with security unit, display device and information processing device - Google Patents

Abstract

A display screen having at least one sensing function module to sense at least one type of identification information, and a data transmission interface to be coupled with an application processor, characterized in that the display screen has a security unit, the security unit It includes: an encryption unit for performing an encryption operation on the at least one type of identification information to generate at least one encrypted information; and a storage unit for storing the at least one type of encrypted information.

Description

Display screen with security unit, display device and information processing device

The present invention relates to a display technology, and more particularly to a display screen with a security unit.

With the advent of the era of big data, the security of massive data has become a key issue that must be effectively addressed in "human-machine interfaces." As an important entrance and exit of the man-machine interface, the display screen plays an irreplaceable role for the security of the data interface. There are many kinds of data involved in the display's man-machine interface, such as touch information, biometric information, and so on. However, in the case where the sensitive information is input or output by the display screen, there is currently no real effective security assurance scheme for the display screen of the mobile device.

Taking the touch sensor as an example, the touch signal detected by the touch sensor will be interfered by the driving signal of the flat display and have errors. In addition, with the integration and integration of multiple sensors on the screen, the interface interference between the display signal and other sensor signals will become more and more serious.

In addition, in actual applications, a display frame of a display system with integrated sensing functions needs to be maintained or switched at small time intervals to ensure the continuity of the frame. During the frame scan time, The display system also needs to process other sensing data. Therefore, the effective allocation of screen display time and other sensor detection time is also a key issue to be resolved.

Furthermore, if the sensitive information output by the display screen is recorded, the user's rights and personal identity information are likely to suffer great damage.

In order to solve the foregoing problems, a novel display driving scheme is urgently needed in the art.

An object of the present invention is to disclose a display screen with a security unit, which can improve the system security of its human-machine interface.

Another object of the present invention is to disclose a display screen with a security unit, which can provide a high degree of integration to make the display terminal thin and thin.

Another object of the present invention is to disclose a display screen with a security unit, which can reduce the power consumption of the overall sensing and display system.

In order to achieve the foregoing object, a display screen has been proposed, which has at least one sensing function module to sense at least one type of identification information, and a data transmission interface to be coupled with an application processor, and is characterized in that the display The screen has a security unit, which includes:

An encryption unit, configured to perform an encryption operation on the at least one identity identification information to generate at least one encrypted information; and

A storage unit is configured to store the at least one encrypted information.

In an embodiment, the security unit further includes a comparison unit for performing a comparison operation on the at least one encrypted information according to at least one pre-stored data sample to generate at least one comparison result, and the data The transmission interface is used to output the at least one encrypted information and / or the at least one comparison result.

In an embodiment, the comparison operation includes a weighted comparison operation for performing a weighted average calculation on the at least one comparison result to generate a weighted comparison result, and the data transmission interface is used to output The at least one encrypted information and / or the at least one comparison result and / or the weighted comparison result.

In an embodiment, the identification information includes biometric identification information and / or behavior characteristic identification information, and the information is input by at least one biometric sensing unit outside a display area, or the display area Information sensed by an internal touch sensing unit.

In an embodiment, the display screen further includes an upper substrate and a lower substrate opposite to each other, and the security unit is located in a peripheral area outside a display area. The display area has a plurality of arrays arranged in an array. Pixel units, and the security unit is disposed on the lower substrate or the upper substrate, or a portion thereof is disposed on the lower substrate and another portion is disposed on the upper substrate.

In a possible embodiment, the display screen is a liquid crystal display or an OLED display, and it has at least one sensing unit, and the sensing unit is selected from a touch sensing unit, a pressure sensing unit, and a biological unit. A group of feature sensing units.

In one embodiment, the touch sensing unit includes at least one touch sensing electrode and at least one touch driving electrode; the biometric sensing unit includes at least one biometric detection electrode; the touch sensing electrode And the biometric detection electrode system is located on a side of the upper substrate facing the lower substrate; the touch drive electrode system is located on a side of the lower substrate facing the upper substrate; and one of the touch electrodes The control driving electrode is formed by a plurality of touch driving sub-electrodes connected through a plurality of wires.

In one embodiment, the touch sensing unit includes at least one touch sensing electrode and at least one touch driving electrode; the biometric information sensing unit includes at least one biometric detection electrode; the biometric detection The measuring electrode is located on a side of the upper substrate facing the lower substrate; the touch sensing electrode and the touch driving electrode are located on a side of the lower substrate facing the upper substrate; and one of the touch electrodes The control driving electrode is formed by a plurality of touch driving sub-electrodes connected through a plurality of wires.

To achieve the foregoing object, the present invention further provides a display device including the display screen as described above.

To achieve the foregoing object, the present invention further provides an information processing device, which includes the display device as described above.

In order to enable the expensive review committee to further understand the structure, characteristics and purpose of the present invention, the detailed description of the drawings and preferred embodiments are attached as follows.

In order to ensure the security of information transmission, the present invention proposes a technical solution of a display screen with a security unit, which is based on identification information, such as PIN (personal identification number) information or fingerprints, voiceprints, human faces, and other organisms The characteristic information is processed by a security module on the display screen, and then the related authentication result is transmitted to an AP (application processor) for subsequent security processing procedures.

Please refer to FIG. 1, which is a schematic diagram of an embodiment of a display screen with a security unit according to the present invention. As shown in FIG. 1, a display screen 100 has a display area 101 a, a peripheral area 101 b, a biometric sensing unit 102, a pressure sensing unit 103, a security unit 104, and a data transmission interface 105.

The display area 101a has a plurality of pixel units (not shown in FIG. 1) arranged in an array, and can provide a screen display function and a touch sensing function, and the touch sensing function can be input by a user A PIN or input operation of a specific touch track. In addition, the screen display function may be provided by a liquid crystal display or an OLED display.

The biometric sensing unit 102 and the pressure sensing unit 103 may be disposed in the display area 101a or the peripheral area 101b; the security unit 104 and the data transmission interface 105 may be disposed in the peripheral area 101b, wherein the security unit 104 may be located on the display screen 100 One of the lower substrate (not shown in FIG. 1) or one of the upper substrate (not shown in FIG. 1), or a part of the security unit 104 is located on the lower substrate and the other part is located on the upper substrate.

Please refer to FIG. 2, which is a schematic diagram of an embodiment of the security unit 104 of the display screen of FIG. 1. As shown in FIG. 2, the security unit 104 includes an encryption unit 104 a, a storage unit 104 b, and a comparison unit 104 c. The encryption unit 104 a is used to perform an encryption operation on at least one type of identity information DATA_ID to generate at least one encryption. The stored information DENC; the storage unit 104b is configured to store the at least one encrypted information DENC; and the comparison unit 104c is configured to perform at least one encrypted information DENC according to at least one pre-stored data sample DSAMP The comparison operation generates at least one comparison result COUT. The comparison operation may include a weighted comparison operation for performing a weighted average calculation on the at least one comparison result to generate a weighted comparison result. In addition, the identification information DATA_ID may include biometric identification information and / or behavior characteristic identification information, and it may be information input by the biometric sensing unit 102 or a touch sensing unit (inside the display area 101a) (Not shown in Figure 1).

In one embodiment, the touch sensing unit includes at least one touch sensing electrode and at least one touch driving electrode; the biometric sensing unit 102 includes at least one biometric detection electrode; the touch sensing electrode And the biometric detection electrode system is located on a side of the upper substrate facing the lower substrate; the touch drive electrode system is located on a side of the lower substrate facing the upper substrate; and one of the touch electrodes The control driving electrode is formed by a plurality of touch driving sub-electrodes connected through a plurality of wires.

In another embodiment, the touch sensing unit includes at least one touch sensing electrode and at least one touch driving electrode; the biometric information sensing unit 102 includes at least one biometric detection electrode; the biometric A detection electrode is located on a side of the upper substrate facing the lower substrate; the touch sensing electrode and the touch driving electrode are located on a side of the lower substrate facing the upper substrate; and one of the The touch driving electrode is formed by a plurality of touch driving sub-electrodes connected through a plurality of wires.

The data transmission interface 105 is used to output the at least one encrypted information DENC and / or the at least one comparison result COUT and / or the weighted comparison result to an application processor 200 for subsequent security processing procedures.

Please refer to FIG. 3, which is a schematic diagram of an embodiment of a control circuit of the display screen 100 of FIG. 1. As shown in FIG. 3, a control circuit 110 includes a serial peripheral interface (SPI) 110a, an integrated circuit (IIC) interface 110b, and a general purpose input output (GPIO) interface 110c, a RISC (reduced instruction set computing) CPU (central processing unit) 110d, a RAM (random access memory) module 110e, a ROM (read only memory) module 110f, a flash memory module 110g, a source driving unit 110h, a timing control unit 110i, a multiplexer 110j, and a touch transmission The receiving unit 110k, a pressure sensing control unit 110l, and a biometric sensing control unit 110m.

Among them, the RISC CPU 110d is a von Neumann architecture, which may include (but is not limited to) ARM (advanced RISC machine; advanced reduced instruction set machine), MIPS (microprocessor without interlocked pipeline stages; microprocessing without interlocked pipeline stages Device) and the like, preferably MIPS.

The storage unit includes a ROM module 110f and a RAM module 110e and a flash memory module 110g. The ROM module 110f can store a boot program; the RAM module 110e can store programs and data; and the flash memory module Group 110g can store user's identification information and key.

RISC CPU 110d can run embedded operating system, which can be (but not limited to) android (Android operating system), ios (Apple operating system) or security chip COS (China operating system) system, where the COS system contains The system layer and the application layer control an encryption operation and a storage operation.

In addition, the control circuit 110 may further include a source driving unit 110h and a timing control unit 110i to provide a screen display function. In addition, in order to provide the screen display function, the control circuit 110 may further include a dynamic backlight control module (not shown in FIG. 3), a Gamma (gamma voltage) correction module (not shown in FIG. 3), and A gate driver (not shown in Figure 3). In a possible embodiment, the source driving unit 110h may use a SOA (source driver on array; integrated source driving circuit) process, and the gate driver may use a GOA (gate driver on array; integrated gate driving circuit) process .

The touch transmitting / receiving unit 110k is used to provide a capacitive touch detection function.

The pressure sensing control unit 110l is configured to detect a pressure sensing value of the pressure sensing unit 103.

The biometric sensing control unit 110m may be composed of a sensing array, and the sensing array may include multiple contact or non-contact sensing units, and the sensing unit may be optical, capacitive, or ultrasonic Sensing unit.

In addition, the multiplexer 110j may provide a multiplexing function to enable the control circuit 110 to provide a function of a sensor hub.

In addition, the serial peripheral interface 110a, the integrated circuit bus interface 110b, or the universal input / output interface 110c is used to provide a data transmission function so that the data transmission interface 105 can communicate with the application processor 200.

In addition, the chip packaging form of the control circuit 110 may be (but not limited to) a COG chip on glass (chip-to-glass bonding technology) package.

Several possible structures of the display screen of the present invention will be explained below.

Please refer to FIG. 4, which is a schematic structural diagram of a display screen of the present invention. As shown in FIG. 4, the display screen has a glass cover 301, a touch sensor layer 302, a polarizer 303, a color filter glass layer 304, a color filter 305, and a liquid crystal material layer from top to bottom. 306. A TFT circuit layer 307, a TFT glass layer 308, a polarizer 309, and a backlight unit 310.

In the display screen structure of FIG. 4, a polarizer 303, a color filter glass layer 304, a color filter 305, a liquid crystal material layer 306, a TFT circuit layer 307, a TFT glass layer 308, a polarizer 309, and a backlight unit 310 are used to A liquid crystal display is formed, and the touch sensor layer 302 is located above the liquid crystal display layer. The touch sensor layer 302 may be formed on a cover glass (CG) or in a dedicated sensor layer, and the dedicated sensor layer is usually made of plastic. The method of integrating the touch sensor layer on the glass cover is generally referred to as "sensor-on-lens (SoL)" or "one glass solution (OGS) , Because this method does not need to add a separate sensor layer, only the glass cover can be used; and the design method using a separate sensor layer is called glass-film (GF) or glass-film — Glass-film-film (GFF), depending on whether the touch send and receive functions are implemented on one or two layers of the sensor film. These design methods described above are all classified as "separate", also That is to say, its touch sensing layer is an overlay layer that exists on the display screen separately. The advantages of using a separate touch sensor overlay layer are that the technology is mature, the risk is low, and the product is launched quickly. For example, in actual production, Relevant LCD module manufacturers can use the factory Existing manufacturing systems and equipment are assembled to improve yield and output speed. Therefore, when the latest display and touch technologies are used in this field, separate designs are also used. However, the disadvantage of separate designs is that the display panel is Thick, darker display and higher cost.

With the advancement of touch display technology, LCD module manufacturers have been able to directly integrate touch sensors into one or more of the display screen stacks. This integration can be implemented on or within the basic unit in the display, that is, on-cell integration or in-cell integration.

The method of placing the touch sensor matrix on the color filter glass is called inline integration, because the sensor is located on the basic unit of the display screen. Sensor sending and receiving grids (ie diamond or stripe grids) can be electrically isolated from the jumper wires, or special layouts can be used so that these grids can be implemented without bridging. The latter design, called single-layer-on-cell (SLOC), is a very common design because of its lower cost and higher yield.

It is simple and reliable to add touch function to the display screen using in-cell technology, and this method is often the best for active-matrix organic light emitting diode (AMOLED) display screens. select. In addition, for larger display screens and curved or flexible display screens, it is also a good choice to integrate a metal mesh sensor without a jumper in an embedded manner.

Please refer to FIG. 5a, which is another schematic structural diagram of a display screen of the present invention. As shown in FIG. 5a, the display screen has a glass cover 401, a sensor layer 402, a polarizer 403, a color filter glass layer 404, a color filter 405, and a touch panel embedded from top to bottom. The liquid crystal material layer 406 of the sensing electrode, a TFT circuit layer 407, a TFT glass layer 408, a polarizer 409, and a backlight unit 410.

In the display screen structure of FIG. 5a, a polarizer 403, a color filter glass layer 404, a color filter 405, a liquid crystal material layer 406 with touch sensing electrodes embedded therein, a TFT circuit layer 407, a TFT glass layer 408, and a polarizer 409 and backlight unit 410 are used to form a liquid crystal display with a touch function.

In FIG. 5a, the touch sensing electrode system is constructed using the existing structure in the liquid crystal material layer 406. Generally, a touch sensor matrix is placed on the common electrode (or VCOM layer), and a touch driving circuit system A metal layer is interconnected with the touch sensor matrix. For today's in-plane switching (IPS) panels, these layers are all on a TFT glass.

Please refer to FIG. 5b, which is another schematic structural diagram of a display screen of the present invention. As shown in FIG. 5b, the display screen has a glass cover 501, a sensor layer 502, a polarizer 503, a touch signal receiving electrode layer 504a, a color filter glass layer 504, and a color filter from top to bottom. Sheet 505, a liquid crystal material layer 506 with touch signal transmission electrodes embedded therein, a TFT circuit layer 507, a TFT glass layer 508, a polarizer 509, and a backlight unit 510.

In the display screen structure of FIG. 5b, a polarizer 503, a touch signal receiving electrode layer 504a, a color filter glass layer 504, a color filter 505, a liquid crystal material layer 506 with embedded touch signal transmission electrodes, and a TFT circuit layer 507 The TFT glass layer 508, the polarizer 509, and the backlight unit 510 are used to form a liquid crystal display with a touch function.

That is, the display screen structure of FIG. 5b is a hybrid embedded design, in which the sending layer of the touch sensor is embedded in a TFT glass, and the receiving layer is embedded in a color filter glass. on. This approach is called hybrid in-cell design. In contrast, the display screen structure of FIG. 5a is a full in-cell design, that is, the sending and receiving touch sensor layers are located in a display basic unit.

In addition, in addition to the touch-sensing stack, the display screen of the present invention can also integrate a biometric identification sensing stack and / or a pressure-sensing stack.

Please refer to FIG. 6, which is another schematic structural diagram of a display screen of the present invention. As shown in FIG. 6, the display screen has a glass cover 601, an optical sensing layer 602, a pressure sensing layer 603, a polarizer 604, a color filter glass layer 605, a color filter 606, A liquid crystal material layer 607 with embedded touch sensing electrodes, a TFT circuit layer 608, a TFT glass layer 609, a polarizer 610, and a backlight unit 611.

In the display screen structure of FIG. 6, a polarizer 604, a color filter glass layer 605, a color filter 606, a liquid crystal material layer 607 with touch sensing electrodes embedded therein, a TFT circuit layer 608, a TFT glass layer 609, and a polarizer 610 and backlight unit 611 are used to form a liquid crystal display with a touch function, and an optical sensing layer 602 and a pressure sensing layer 603 are positioned above the liquid crystal display for fingerprint recognition and sensing a pressure touch operation. .

Alternatively, an optical sensing unit can be integrated into the display stack. Please refer to FIG. 7, which is another schematic structural diagram of a display screen of the present invention. As shown in FIG. 7, the display screen has a glass cover 701, a polarizer 702, a color filter glass layer 703, a color filter 704, and a liquid crystal material with touch sensing electrodes embedded from top to bottom. Layer 705, a TFT circuit layer 706 with an optical sensing unit embedded therein, a TFT glass layer 707, a polarizer 708, and a backlight unit 709.

In the display screen structure of FIG. 7, a polarizer 702, a color filter glass layer 703, a color filter 704, a liquid crystal material layer 705 with a touch sensing electrode embedded therein, and a TFT circuit layer 706 with an optical sensing unit embedded therein The TFT glass layer 707, the polarizer 708, and the backlight unit 709 are used to form a liquid crystal display with a touch function and an optical sensing function. The TFT circuit layer 706 with the optical sensing unit embedded therein can be used for fingerprint identification .

In addition, in addition to the liquid crystal display screen, the present invention can also integrate the optical sensing unit and the pressure sensing unit in a display screen such as an OLED or electronic paper that can be divided into different stacks.

In addition, please refer to FIG. 8, which is a schematic diagram of an information processing device including a display screen of the present invention. As shown in FIG. 8, the information processing device has an integrated display panel 801, an integrated chip 802, a connection module 803, and a motherboard 804. The integrated chip 802 is located on the integrated display panel 801 and passes through the connection module 803. Communicates with the motherboard 804.

As for the sensitive information collected by the integrated display panel 801, it can be distinguished and preset according to the source of the sensing unit. For example, a flag bit can be set in the data format, which contains at least two fields: one of which is used to identify whether it is sensitive information and the other is used to identify the sensitivity level; combined with the ID of a sensing unit, Determine the sensitivity of the information output by the sensing unit at a certain time.

For example, in the case of a sensing unit such as a touch unit, a pressure touch unit, and a biometric recognition unit, the output data of the biometric recognition unit may be preset as sensitive information. For weak privacy (such as faces) information can be set to a lower sensitivity level, and for strong privacy (such as fingerprints) information can be set to a higher sensitivity level.

Among them, weak privacy refers to private information that is easy to obtain publicly and is easily collected without the consent of the owner of the biometric information. Such as face, gait, etc. Strong privacy refers to private information that is not easily accessible to the public, and is not easily collected without the consent of the owner of the biometric information. Such as fingerprints, iris, etc.

In addition, when different types of multi-factor biometric information are involved, comparison scores can be given by means of weighted evaluation to obtain comparison results. The way of weighted evaluation can be expressed as:

S = K1 * C1 + K2 * C2 + ... Kn * Cn.

Where S is the weighted result; Kn is the weighting coefficient and n is the natural number. The weighting factor is related to the strength of strong and weak privacy. Cn is the result of biometric comparison.

As far as the touch unit is concerned, it will involve the input of identity information, including (but not limited to) numbers, letters, graphics, etc. During touch data transmission, the system needs to detect whether the current application session is entering a PIN code and a verification mechanism. If it is, the sensitive information identifier in the touch data generated in the process is set to valid, and the sensitivity level is set to high.

In addition, considering power saving, information with different sensitivities can correspond to different security principles, different security levels (such as different EAL (evaluation assurance level) levels), and use different levels of encryption algorithms. Wait.

In addition, in practical applications, various sensing units are generally in a periodic polling state at a lower operating frequency. For touch and pressure touch, when the sensing unit detects an object touch, it switches to the working state and collects touch data. At this time, the display data and touch data are time-multiplexed.

As far as biometric identification is concerned, since contact biometric identification requires touch, the biometric data collected in this way is similar to touch data, and it must be time-multiplexed with the display data.

For non-contact biometrics, presets can be made. For collections that require manual monitoring, a tandem data frame can be used to switch the display data to the current collection data. After the currently displayed collection data is terminated, it switches to the original screen to be displayed. If the non-contact biometric identification collection process does not require manual supervision (unsupervised), it can be processed behind the scenes in a time-sharing multiplexed manner with the display data. If the image sensor is used to collect the image, it is necessary to manually check whether the real-time captured image meets the requirements, then the object currently being captured can be displayed, and the display data at this time is the current data collected by the image sensor.

In addition, the biometric feature may not be limited to a fingerprint, but may also be a palm print, a human face, or an iris.

Taking the case where touch and display need to be synchronized as an example, since the display unit has a small influence on the noise of the touch unit during the blanking period during the image frame switching process, the touch unit can be used during the blanking period. Work so that display data and touch data can be processed separately in time to reduce mutual interference. Therefore, in actual operation, some time slots can be divided during the scanning process of the display frame for touch detection.

Please refer to FIG. 9, which is a schematic diagram showing that display data processing and touch data processing are alternately performed in a time-sharing operation in one frame data processing cycle. As shown in FIG. 9, in the data processing cycle of each frame of the first frame, the second frame, and the third frame, the display mode and the touch mode are time-multiplexed, but the human eye has a certain recognition time window for the screen transformation. Therefore, the frame rate and the time ratio of the two modes will have certain requirements. Among them, TM represents the touch mode and DM represents the display mode. Using this driving method, in addition to effectively reducing the influence of the noisy electrical signals of the liquid crystal display array on the touch working layer, it can also save the mask stack to reduce the panel thickness of the touch liquid crystal display module.

In addition, the above-mentioned time-division multiplexing function can be operated by software programs, and a selection device can also be multiplexed by a multiplexer.

According to the above description, the present invention can implement the display screen described above in a display device, and further implement the display device in an information processing device. The information processing device can be a smart phone or a handheld device. .

With the design disclosed above, the present invention has the following advantages:

1. The display screen with a security unit of the present invention can improve the system security of its man-machine interface.

2. The display screen with a security unit of the present invention can provide a high degree of integration to make the display terminal thin and light.

3. The display screen with the security unit of the present invention can reduce the power consumption of the overall sensing and display system.

What is disclosed in this case is a preferred embodiment. For example, those who have partial changes or modifications that are derived from the technical ideas of this case and are easily inferred by those skilled in the art, do not depart from the scope of patent rights in this case.

To sum up, regardless of the purpose, method and effect, this case is showing its technical characteristics that are quite different from the conventional ones, and its first invention is practical, and it is also in line with the patent requirements of the invention. Granting patents at an early date will benefit society and feel good.

100‧‧‧display

101a‧‧‧display area

101b‧‧‧surrounding area

102‧‧‧Biometric sensing unit

103‧‧‧Pressure sensing unit

104‧‧‧Security Unit

104a‧‧‧Encryption Unit

104b‧‧‧Storage Unit

104c‧‧‧ Comparison Unit

105‧‧‧Data Transmission Interface

110‧‧‧Control circuit

110a‧‧‧Serial Peripheral Interface

110b‧‧‧Integrated circuit bus interface

110c‧‧‧Universal input / output interface

110d‧‧‧RISC CPU

110e‧‧‧RAM module

110f‧‧‧ROM Module

110g‧‧‧Flash Memory Module

110h‧‧‧Source Drive Unit

110i‧‧‧sequence control unit

110j‧‧‧ Multiplexer

110k‧‧‧Touch Transmit / Receive Unit

110l‧‧‧Pressure sensing control unit

110m‧‧‧Biometric Sensing Control Unit

200‧‧‧Application Processor

301, 401, 501, 601, 701‧‧‧ glass cover

302‧‧‧touch sensor layer

303, 403, 503, 604, 702‧‧‧ polarizer

304, 404, 504, 605, 703‧‧‧ color filter glass

305, 405, 505, 606, 704‧‧‧ color filters

306‧‧‧LCD material layer

307, 407, 507, 608‧‧‧TFT circuit layer

308, 408, 508, 609, 707‧‧‧TFT glass layer

309, 409, 509, 610, 708‧‧‧ polarizer

310, 410, 510, 611, 709‧‧‧ backlight unit

402, 502‧‧‧ sensor layer

406, 607, 705‧‧‧ Liquid crystal material layer with touch sensing electrodes embedded

504a‧‧‧touch signal receiving electrode layer

506‧‧‧ Liquid crystal material layer with touch signal transmission electrode embedded

602‧‧‧Optical Sensing Layer

603‧‧‧Pressure Sensing Layer

706‧‧‧ TFT circuit layer with embedded optical sensing unit

801‧‧‧ Integrated Display Panel

802‧‧‧ Integrated Chip

803‧‧‧Connecting components

804‧‧‧Motherboard

FIG. 1 is a schematic diagram of an embodiment of a display screen with a security unit according to the present invention. FIG. 2 is a schematic diagram of an embodiment of a security unit of the display screen of FIG. 1. FIG. 3 is a schematic diagram of an embodiment of a control circuit of the display screen of FIG. 1. FIG. 4 is a schematic structural diagram of the display screen of FIG. 1. FIG. 5a is another schematic structural diagram of the display screen of FIG. 1. FIG. FIG. 5b is another schematic structural diagram of the display screen of FIG. 1. FIG. FIG. 6 is another schematic structural diagram of the display screen of FIG. 1. FIG. 7 is another schematic structural diagram of the display screen of FIG. 1. FIG. 8 is a schematic diagram of an information processing apparatus including a display screen of the present invention. FIG. 9 is a schematic diagram of display data processing and touch data processing alternately performed in a time-sharing operation in a frame data processing cycle of the present invention.

Claims (9)

A display screen having at least one sensing function module to sense at least one type of identification information, and a data transmission interface to be coupled with an application processor, characterized in that the display screen has a security unit, the security unit It includes: an encryption unit for performing an encryption operation on the at least one type of identification information to generate at least one encrypted information; and a storage unit for storing the at least one type of encrypted information; wherein the security unit It further includes a comparison unit for performing a comparison operation on the at least one encrypted information according to at least one pre-stored data sample to generate at least one comparison result, and the data transmission interface is used to output the at least one An encrypted information and / or the at least one comparison result. The display screen described in item 1 of the scope of patent application, wherein the comparison operation includes a weighted comparison operation for performing a weighted average calculation on the at least one comparison result to generate a weighted comparison result, and The data transmission interface is used to output the at least one encrypted information and / or the at least one comparison result and / or the weighted comparison result. The display screen described in item 1 of the scope of patent application, wherein the identification information includes biometric identification information and / or behavioral identification information, and is input by at least one biometric sensing unit outside a display area. Information, or information sensed by a touch sensing unit inside the display area. The display screen according to item 1 of the scope of patent application, further comprising an upper substrate and a lower substrate opposite to each other, the security unit is located in a peripheral area other than a display area, and the display area is arranged in an array. A plurality of pixel units of the cloth, and the security unit is disposed on the lower substrate or the upper substrate, or a portion thereof is disposed on the lower substrate and another portion is disposed on the upper substrate. The display screen according to item 4 of the scope of patent application, which is a liquid crystal display or an OLED display, and has at least one sensing unit, the sensing unit is selected from a touch sensing unit and a pressure sensing unit. 2. A group of biometric sensing units. The display screen according to item 5 of the scope of patent application, wherein the touch sensing unit includes at least one touch sensing electrode and at least one touch driving electrode; the biometric sensing unit includes at least one biometric detection The touch sensing electrode and the biometric detection electrode are located on a side of the upper substrate facing the lower substrate; the touch driving electrode is located on a side of the lower substrate facing the upper substrate One side; and one touch driving electrode is formed by a plurality of touch driving sub-electrodes connected through a plurality of wires. The display screen according to item 5 of the scope of patent application, wherein the touch sensing unit includes at least one touch sensing electrode and at least one touch driving electrode; the biometric information sensing unit includes at least one biometric A detection electrode; the biometric detection electrode is located on a side of the upper substrate facing the lower substrate; the touch sensing electrode and the touch driving electrode are located on a side of the lower substrate facing the upper substrate One side; and one touch driving electrode is formed by a plurality of touch driving sub-electrodes connected through a plurality of wires. A display device includes the display screen according to any one of items 1 to 7 of the scope of patent application. An information processing device includes the display device described in item 8 of the scope of patent application.