CN107885361B

CN107885361B - Display device and electronic apparatus

Info

Publication number: CN107885361B
Application number: CN201610874510.0A
Authority: CN
Inventors: 江忠胜; 刘安昱; 于磊
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2016-09-30
Filing date: 2016-09-30
Publication date: 2022-02-08
Anticipated expiration: 2036-09-30
Also published as: CN107885361A

Abstract

The present disclosure relates to a display device including: backlight unit and array substrate, array substrate includes: a substrate; a thin film transistor disposed in a first region of one side of the substrate; a photoelectric sensor disposed in a second region of one side of the substrate, for recognizing a fingerprint according to the received invisible light; the backlight module comprises a plurality of first light sources and at least one second light source corresponding to a second area, and the second light source is used for emitting invisible light; and when the photoelectric sensor is in a state of a fingerprint to be identified, the control chip controls the thin film transistor corresponding to the second area in the thin film transistor and the second light source to be started. According to the technical scheme of this disclosure, through additionally setting up the second light source that corresponds with the second region in backlight unit, can send invisible light and discern for photoelectric sensor, can avoid visible light among the external environment to the influence of discernment fingerprint, guarantee the degree of accuracy of discernment result.

Description

Display device and electronic apparatus

Technical Field

The present disclosure relates to the field of display technologies, and in particular, to a display device and an electronic apparatus.

Background

With the diversification of encryption/decryption operations of the intelligent terminal, everyone who owns the fingerprint has the fingerprint, but the fingerprint identification module is more and more generally integrated in the intelligent terminal because the fingerprint identification module is more and more emphasized due to the different attributes of the people.

At present, fingerprint identification modules in intelligent terminals (such as mobile phones) mainly comprise two types, namely a back side and a front side, of the intelligent terminal, the fingerprint identification module arranged on the back side is generally located in the middle upper region of a shell, and the fingerprint identification module arranged on the front side is integrated with an HOME key.

However, in any of the above manners, the fingerprint identification module needs to be manufactured separately and then set in the intelligent terminal, and the manufacturing process is complicated.

Disclosure of Invention

The present disclosure provides a display device and an electronic apparatus to solve the disadvantages of the related art.

According to a first aspect of the embodiments of the present disclosure, there is provided a display device, comprising a backlight module, a display panel and a control chip,

wherein, the display panel includes an array substrate, the array substrate includes:

a substrate;

a thin film transistor disposed in a first region of one side of the substrate;

a photosensor disposed in a second region of one side of the substrate, for recognizing a fingerprint according to the received invisible light;

the passivation layer is arranged on one side, far away from the substrate, of the thin film transistor and the photoelectric sensor;

the backlight module comprises a light guide plate, a plurality of first light sources uniformly arranged on the light incident side of the light guide plate, and at least one second light source arranged on the light incident side of the light guide plate and corresponding to the second area, wherein the second light source is used for emitting invisible light;

the control chip is electrically connected to the thin film transistor and the second light source, and when the photoelectric sensor is in a state of a fingerprint to be identified, the control chip controls the thin film transistor corresponding to the second area in the thin film transistor and the light source corresponding to the second area in the plurality of light sources to be turned on.

Optionally, the second light source comprises:

infrared emitters and/or ultraviolet emitters.

Optionally, the array substrate further includes:

and the flat layer is arranged on one side of the passivation layer, which is far away from the thin film transistor.

Optionally, the photosensor comprises at least one of:

photodiode, phototriode, phototransistor.

Optionally, the display panel further comprises:

the color film substrate is arranged opposite to the array substrate;

and a black matrix is arranged in the color film substrate, and the photoelectric sensor is arranged opposite to the black matrix.

Optionally, the display device further includes:

a touch module set in the display panel or on one side of the display panel far away from the backlight module and electrically connected to the control chip,

when the touch module senses a touch signal at a position corresponding to the photoelectric sensor, the touch module transmits a signal indicating that the photoelectric sensor is in a state of a fingerprint to be identified to the control chip.

Optionally, the display device further includes:

the state detection unit is configured to detect the working state of the display device and transmit the detected working state to the touch module;

when the touch control module senses a touch control signal at a position corresponding to the photoelectric sensor, whether the display device is in a state of a fingerprint to be verified is determined, and if the display device is in the state of the fingerprint to be verified, a signal indicating that the photoelectric sensor is in the state of the fingerprint to be recognized is transmitted to the control chip.

According to a second aspect of the embodiments of the present disclosure, there is provided an electronic apparatus including:

a processor;

a memory for storing processor-executable instructions;

wherein, the electronic equipment also comprises a display device, the display device comprises a backlight module, a display panel and a control chip,

the display panel includes an array substrate, the array substrate including:

a substrate;

a thin film transistor disposed in a first region of one side of the substrate;

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

as can be seen from the above embodiments, the present disclosure may enable the photosensor to be integrated in the array substrate by disposing the photosensor on the base of the array substrate. In the display device manufactured by the array substrate, the finger can be placed at the position corresponding to the second area of the array substrate to perform fingerprint identification, a fingerprint identification sensor is not required to be additionally arranged in the display device, the manufacturing process is simplified, and the stability and the integration level of the whole structure are improved.

And through additionally setting up the second light source that corresponds with the second region in backlight unit, can the independent control second light source provide the light source that is used for discerning the fingerprint for photoelectric sensor, and need not to open a plurality of first light sources that provide the light source for whole light guide plate, reduce the control complexity of steerable chip on the one hand, on the other hand has reduced the consumption of fingerprint identification operation.

And set up photoelectric sensor into discerning the fingerprint through receiving invisible light, can avoid visible light among the external environment to the influence of discerning the fingerprint, guarantee the degree of accuracy of discernment result.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic structural diagram illustrating a display device according to an exemplary embodiment.

Fig. 2 is a schematic structural diagram illustrating an array substrate according to an exemplary embodiment.

FIG. 3 is a schematic diagram illustrating fingerprint recognition according to an exemplary embodiment.

Fig. 4 is a schematic diagram illustrating a second region according to an example embodiment.

Fig. 5 is a schematic structural diagram of a backlight module according to an exemplary embodiment.

Fig. 6 is a top view of a backlight assembly shown according to an exemplary embodiment.

Fig. 7 is a schematic structural view illustrating another array substrate according to an exemplary embodiment.

Fig. 8 is a schematic structural diagram illustrating a display panel according to an exemplary embodiment.

Fig. 9 is a schematic structural diagram illustrating another display panel according to an exemplary embodiment.

Fig. 10 is a schematic flow chart illustrating a method of fabricating an array substrate according to an exemplary embodiment.

Fig. 11 is a schematic flow chart illustrating another method for fabricating an array substrate according to an exemplary embodiment.

Fig. 12 is a block diagram illustrating a display device according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

Fig. 1 is a schematic structural diagram illustrating a display device according to an exemplary embodiment. Fig. 2 is a schematic structural diagram illustrating an array substrate according to an exemplary embodiment. As shown in fig. 1, the display device includes:

a backlight module 1, a display panel 2 and a control chip (not shown in the figure, which can be electrically connected with the backlight module and/or the structure in the display panel through FPC),

as shown in fig. 1, the display panel 2 includes an array substrate 20 (which may further include a color filter substrate 29 disposed opposite to the array substrate), and as shown in fig. 2, the array substrate 20 includes:

the array substrate includes:

a substrate 21.

In one embodiment, the material of the substrate may be glass. When the array substrate is suitable for a flexible display device, the substrate may be made of a flexible resin.

And a thin film transistor 22 disposed in a first region on one side of the substrate 21.

In one embodiment, as shown in fig. 2, the thin film transistor 22 may include a gate electrode 221, an active layer 222, a source electrode 223, a drain electrode 224, and the like, and a gate insulating layer 25 may be further disposed between the gate electrode 221 and the active layer 222.

And a photo sensor 23 disposed at a second region of one side of the substrate 21 for recognizing a fingerprint according to the received invisible light.

In one embodiment, the photosensor may be formed on the substrate using the same process as the thin film transistor, for example, by a patterning process.

In one embodiment, the structure of the photosensor is not limited to the structure shown in fig. 1, the position thereof is not limited to the position shown in fig. 1, and it is also not limited to the direct formation on the substrate shown in fig. 1. For example, the photosensor may be formed over the thin film transistor, that is, formed at the time of or after the formation of the source and drain electrodes, in which case there may be an overlapping region of the first region and the second region.

FIG. 3 is a schematic diagram illustrating fingerprint recognition according to an exemplary embodiment. As shown in fig. 6, the photoelectric sensor may be a photodiode, a phototriode, a phototransistor, or the like, when a finger of a user presses on the surface of the screen, light emitted from the light source may irradiate on the fingerprint of the finger through the prism or the like, the ridge contacts the screen due to the difference in heights of the valley and the ridge of the fingerprint, and a gap filled with air exists between the valley and the screen, so that the light reflected after the light irradiates on the valley and the ridge is also different, and further, the light incident on the photoelectric sensor through the lens is also different.

And a passivation layer 24 arranged on the side of the thin film transistor 22 and the photosensor 23 away from the substrate 21.

In one embodiment, the passivation layer may be made of an insulating material, such as silicon oxide, silicon nitride, etc.

In one embodiment, the photosensor may be integrated in the array substrate by disposing the photosensor on the base of the array substrate. In the display device manufactured by the array substrate, the finger can be placed at the position corresponding to the second area of the array substrate to perform fingerprint identification, a fingerprint identification sensor is not required to be additionally arranged in the display device, the manufacturing process is simplified, and the stability and the integration level of the whole structure are improved.

The backlight module 1 includes a light guide plate 11, a plurality of first light sources 121 uniformly disposed on the light incident side of the light guide plate 11, and at least one second light source 122 disposed on the light incident side of the light guide plate 11 and corresponding to the second region, wherein the second light source 122 is configured to emit invisible light.

Fig. 4 is a schematic diagram illustrating a second region according to an example embodiment. Fig. 5 is a schematic structural diagram of a backlight module according to an exemplary embodiment. Fig. 6 is a top view of a backlight assembly shown according to an exemplary embodiment.

As shown in fig. 4, taking the display device as a mobile phone as an example, the second region provided with the photoelectric sensor is located at a position below the screen of the mobile phone, for example.

In one embodiment, as shown in FIG. 5, the second light source 122 may be located above the first light source 1211. While the second light source 122 in fig. 6 corresponds to the second area in fig. 4, as shown in fig. 6, the second light source 122 is located at a position below the light guide plate 11, and when the second light source 122 is turned on, the light guide plate can emit light to the second area of the display panel.

In one embodiment, the state that the photoelectric sensor is in the fingerprint to be recognized may be a state that a finger of a user touches a corresponding position of the photoelectric sensor. When the photoelectric sensor is in a state of a fingerprint to be identified, the thin film transistor corresponding to the second area in the thin film transistor and the second light source are controlled to be started, the second light source can be independently controlled to provide a light source for identifying the fingerprint for the photoelectric sensor, a plurality of first light sources for providing the light source for the whole light guide plate do not need to be started, on one hand, the control complexity of a controllable chip is reduced, and on the other hand, the power consumption of fingerprint identification operation is reduced.

If the photo sensor recognizes a fingerprint by receiving visible light reflected from a finger, since there is visible light also in the external environment that is irradiated on the photo sensor, the recognition result of the photo sensor may be affected. And set up photoelectric sensor into discerning the fingerprint through receiving invisible light, then can avoid visible light to the influence of discerning the fingerprint among the external environment, guarantee the degree of accuracy of discernment result.

Optionally, the control chip is further configured to control, according to the received instruction, the first light source corresponding to the second area to be turned on.

Optionally, the second light source comprises:

infrared emitters and/or ultraviolet emitters.

In one embodiment, the photosensor may identify the fingerprint based on the received infrared and/or ultraviolet light, and the second light source corresponding to the second area may emit the corresponding invisible light based on the invisible light that the photosensor may use to identify the fingerprint. The second light source can comprise an infrared emitter and an ultraviolet emitter, or can be one structure, but has the function of adjusting the frequency of emitted electromagnetic waves, so that infrared rays or ultraviolet rays can be emitted according to the needs.

Fig. 7 is a schematic structural view illustrating another array substrate according to an exemplary embodiment. As shown in fig. 7, on the basis of the embodiment shown in fig. 2, the array substrate further includes:

and a flat layer 26 arranged on the side of the passivation layer 24 far away from the thin film transistor 22.

In one embodiment, the passivation layer 4 shown in fig. 2 is ideal, and its upper surface is relatively flat. In fact, since the tft and the photosensor under the passivation layer 4 are protruded with respect to the substrate, the upper surface of the passivation layer 4 is actually non-flat as shown in fig. 7. By further forming a planar layer 6 on the passivation layer 4, the upper surface of the overall structure can be ensured to be relatively flat for further forming other structures thereon.

Optionally, the photosensor comprises at least one of:

photodiode, phototriode, phototransistor.

The user can select the photodiode and/or the phototriode as the photoelectric sensor to sense the fingerprint according to actual needs.

The present disclosure further provides a display panel including the array substrate.

Fig. 8 is a schematic structural diagram illustrating a display panel according to an exemplary embodiment. As shown in fig. 8, which schematically illustrates the structures of the thin film transistor 22 and the photosensor 23, the display panel includes the array substrate, and further includes:

the color film substrate 29 is arranged opposite to the array substrate;

a black matrix 290 is disposed in the color film substrate, and the photoelectric sensor 23 is disposed opposite to the black matrix 7.

Of course, a liquid crystal layer 27 is further disposed between the array substrate and the color filter substrate.

In one embodiment, the color filter substrate includes, in addition to the black matrices, color resistance regions disposed between the black matrices, and each color resistance region is filled with a color resistance material of a corresponding color, for example, the color filter substrate may include a red color resistance region, a green color resistance region, a blue color resistance region, and further may include a white color resistance region.

Fig. 9 is a schematic structural diagram illustrating another display panel according to an exemplary embodiment. As shown in fig. 9, the display panel may include a plurality of data lines and a plurality of gate lines, the gate lines and the data lines crossing to define a plurality of sub-pixels, wherein the character R, G, B indicates that the sub-pixels respectively correspond to red, green and blue sub-pixels. In the structure shown in fig. 9, a black matrix (not shown in fig. 9) may be disposed at positions where the data lines, the gate lines, and/or the thin film transistors are located, and accordingly, the photo sensors (not shown in fig. 9) may also be disposed at these positions so as to be shielded by the black matrix.

In one embodiment, the black matrix may be disposed corresponding to the thin film transistor to reduce an influence of a scanning signal in a gate electrode of the thin film transistor on the liquid crystal, in which case, the photosensor may be disposed above the thin film transistor so that positions of the thin film transistor, the photosensor, and the black matrix correspond. In one embodiment, although the photo sensor may be made of a transparent material, the photo sensor may still reduce the light transmittance of its corresponding region, thereby affecting the aperture ratio of the display panel. Through setting up photoelectric sensor and black matrix correspondingly, because the existence of black matrix makes its region that corresponds opaque, consequently set up photoelectric sensor in this region and can not further reduce the luminousness yet to set up photoelectric sensor for other positions, can improve display panel's aperture ratio.

Optionally, the display device further includes:

In one embodiment, the touch module can be a self-inductance capacitor or a mutual-inductance capacitor. When the touch module is arranged on the side of the display panel far away from the backlight module, the structure of the touch module can be an OGS structure (for example, the touch module is formed on the protective glass on the outer side of the color film substrate); when the touch module is disposed In the display panel, for example, between the array substrate and the color filter substrate, the structure of the touch module may be an On Cell structure (for example, the touch module is disposed between a polarizer and a substrate On one side of the color filter substrate), or an In Cell structure (for example, the touch module is disposed On the array substrate). The user can select the specific structure of the touch module according to the requirement.

In an embodiment, when the touch module senses a touch signal at a position corresponding to the photosensor, it may be determined that a user is touching the photosensor, and therefore the user may need to perform fingerprint recognition, so that a signal indicating that the photosensor is in a state of a fingerprint to be recognized may be transmitted to the control chip, so that the control chip may control the tft corresponding to the second area in the tfts and turn on the light source corresponding to the second area in the light sources, thereby smoothly performing a fingerprint recognition operation.

Optionally, the display device further includes:

Since the photosensor is disposed in the array substrate, and the array substrate generally corresponds to the effective display area of the display panel, a user may click on the area where the photosensor is located when performing a non-fingerprint identification operation in the effective display area, and in this case, if the thin film transistor and the light source corresponding to the second area are controlled to be turned on, power consumption is wasted.

In one embodiment, by further detecting the working state of the display device, when the user clicks the corresponding position of the photoelectric sensor, whether the display device is in the state of the fingerprint to be verified can be determined, wherein the state of the fingerprint to be verified can include a screen locking state, a fingerprint verification payment state and the like, and when the display device is in the state, the operation that the user clicks the corresponding position of the photoelectric sensor can be determined to be fingerprint identification, and then the thin film transistor and the light source corresponding to the second area are controlled to be turned on, so that the electric quantity waste and the loss caused by switching on and off the photoelectric sensor can be effectively avoided.

Corresponding to the embodiment of the array substrate, the disclosure also provides an embodiment of a manufacturing method of the array substrate.

Fig. 10 is a schematic flow chart illustrating a method of fabricating an array substrate according to an exemplary embodiment. As shown in fig. 10, the manufacturing method includes the following steps:

in step S101, a thin film transistor is formed in a first region of one side of a substrate through a patterning process.

In step S102, a photosensor for recognizing a fingerprint is formed through a patterning process in a second region of one side of the substrate.

In step S103, a passivation layer is formed on the thin film transistor and the photosensor on the side away from the substrate.

In one embodiment, if the photo sensor is also formed on the substrate, the steps S101 and S102 may be performed simultaneously, that is, the photo sensor is formed simultaneously with the formation of the thin film transistor. If the photo sensor is formed on the thin film transistor, step S101 may be performed first, and then step S102 may be performed, and an insulating layer may be further disposed on the thin film transistor to insulate the source and the drain of the thin film transistor from the photo sensor.

Fig. 11 is a schematic flow chart illustrating another method for fabricating an array substrate according to an exemplary embodiment. As shown in fig. 11, on the basis of the embodiment shown in fig. 10, the manufacturing method further includes:

in step S104, a flat layer is formed on the side of the passivation layer far away from the thin film transistor

With regard to the manufacturing method in the above embodiments, the detailed manner of each step has been described in detail in the embodiments related to the array substrate, and will not be described in detail here.

Fig. 12 is a block diagram illustrating a display apparatus 1200 according to an exemplary embodiment. For example, the apparatus 1200 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.

Referring to fig. 12, the apparatus 1200 may include one or more of the following components: the display device may further include a display device including a backlight module, a display panel, and a control chip, wherein the display panel includes an array substrate, the array substrate includes: a substrate; a thin film transistor disposed in a first region of one side of the substrate; a photosensor disposed in a second region of one side of the substrate, for recognizing a fingerprint according to the received invisible light; the passivation layer is arranged on one side, far away from the substrate, of the thin film transistor and the photoelectric sensor; the backlight module comprises a light guide plate, a plurality of first light sources uniformly arranged on the light incident side of the light guide plate, and at least one second light source arranged on the light incident side of the light guide plate and corresponding to the second area, wherein the second light source is used for emitting invisible light; the control chip is electrically connected to the thin film transistor and the second light source, and when the photoelectric sensor is in a state of a fingerprint to be identified, the control chip controls the thin film transistor corresponding to the second area in the thin film transistor and the light source corresponding to the second area in the plurality of light sources to be turned on.

The processing component 1202 generally controls overall operation of the apparatus 1200, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 1202 may include one or more processors 1220 to execute instructions. Further, the processing component 1202 can include one or more modules that facilitate interaction between the processing component 1202 and other components. For example, the processing component 1202 can include a multimedia module to facilitate interaction between the multimedia component 1208 and the processing component 1202.

The memory 1204 is configured to store various types of data to support operation at the apparatus 1200. Examples of such data include any application program, contact data, phonebook data, messages, pictures, videos, etc. for operation on the apparatus 1200. The memory 1204 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

Power supply components 1208 provide power to the various components of the device 1200. The power components 1208 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the apparatus 1200.

The multimedia components 1208 include a screen that provides an output interface between the device 1200 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 1208 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the apparatus 1200 is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

Audio component 1210 is configured to output and/or input audio signals. For example, audio component 1210 includes a Microphone (MIC) configured to receive external audio signals when apparatus 1200 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in memory 1204 or transmitted via communication component 1218. In some embodiments, audio assembly 1210 further includes a speaker for outputting audio signals.

The I/O interface 1212 provides an interface between the processing component 1202 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor assembly 1214 includes one or more sensors for providing various aspects of state assessment for the apparatus 1200. For example, the sensor assembly 1214 may detect an open/closed state of the apparatus 1200, the relative positioning of the components, such as a display and keypad of the apparatus 1200, the sensor assembly 1214 may also detect a change in the position of the apparatus 1200 or a component of the apparatus 1200, the presence or absence of user contact with the apparatus 1200, orientation or acceleration/deceleration of the apparatus 1200, and a change in the temperature of the apparatus 1200. The sensor assembly 1214 may include a proximity sensor configured to detect the presence of a nearby object in the absence of any physical contact. The sensor assembly 1214 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 1214 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 1218 is configured to facilitate communication between the apparatus 1200 and other devices in a wired or wireless manner. The apparatus 1200 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 1218 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 1218 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an example embodiment, the apparatus 1200 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors, or other electronic components.

In an exemplary embodiment, a non-transitory computer readable storage medium comprising instructions, such as memory 1204 comprising instructions, executable by processor 1220 of apparatus 1200, is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A display device is characterized in that the display device comprises a backlight module, a display panel and a control chip,

a substrate;

a thin film transistor disposed in a first region of one side of the substrate;

a photoelectric sensor disposed in a second region on one side of the substrate, for recognizing a fingerprint according to received invisible light, the photoelectric sensor being formed on the substrate using the same process as the thin film transistor;

the passivation layer is arranged on one side, far away from the substrate, of the thin film transistor and the photoelectric sensor, and the thin film transistor and the photoelectric sensor are arranged below the passivation layer;

the backlight module comprises a light guide plate, a plurality of first light sources uniformly arranged on the light incident side of the light guide plate, and at least one second light source arranged on the light incident side of the light guide plate and corresponding to the second area, wherein the second light source is used for emitting invisible light; the second light source is positioned above the first light source; the second light source is positioned at the lower part of the light guide plate;

the control chip is electrically connected with the thin film transistor and the second light source, and when the photoelectric sensor is in a state of a fingerprint to be identified, the thin film transistor corresponding to the second area in the thin film transistor and the second light source are controlled to be turned on;

wherein the first region and the second region are not coincident.

2. The display device according to claim 1, wherein the second light source comprises:

infrared emitters and/or ultraviolet emitters.

3. The display device according to claim 1, wherein the array substrate further comprises:

4. The display device of claim 1, wherein the photosensor comprises at least one of:

photodiode, phototriode, phototransistor.

5. The display device according to claim 1, wherein the display panel further comprises:

the color film substrate is arranged opposite to the array substrate;

6. The display device according to any one of claims 1 to 5, further comprising:

7. The display device according to claim 6, further comprising:

8. An electronic device, comprising:

a processor;

a memory for storing processor-executable instructions;

the display panel includes an array substrate, the array substrate including:

a substrate;

a thin film transistor disposed in a first region of one side of the substrate;

wherein the first region and the second region are not coincident.