CN116755269A - Liquid crystal display module, display device and light compensation method - Google Patents

Abstract

The invention discloses a liquid crystal display module, a display device and a light compensation method. The liquid crystal display module comprises a display area, a through hole and a compensation area at least partially surrounding the through hole, wherein the liquid crystal display module comprises a first substrate, a second substrate opposite to the first substrate and a liquid crystal layer positioned between the first substrate and the second substrate, and the through hole penetrates through the first substrate, the liquid crystal layer and the second substrate; the first substrate includes: a display substrate corresponding to the display region for emitting display light; and a compensation substrate corresponding to the compensation region, the compensation substrate including a compensation circuit for optically compensating the through hole in response to a compensation signal output from the driving chip; the second substrate includes: the first color film layer is corresponding to the display substrate and is used for filtering the display light.

Description

Liquid crystal display module, display device and light compensation method

Technical Field

The invention relates to the technical field of display. And more particularly, to a liquid crystal display module, a display device and a light compensation method.

Background

The display principle of Liquid Crystal Display (LCD) products is to control the deflection angle of liquid crystal by changing the voltage difference between electrodes at two sides of the liquid crystal so as to achieve different display effects.

The current LCD product with under-screen camera is difficult to achieve due to the requirement of transmittance, and generally adopts a punching or water drop type design, and the panel considers the design that the wiring avoids punching or water drop special-shaped parts in the area where the punching or water drop screen is close to the camera. Meanwhile, the camera is limited by the punching size, so that the design limit of the camera module is larger, and the product with the under-screen camera is lower in shooting quality due to the limitation of screen punching and screen display.

Disclosure of Invention

The invention aims to provide a liquid crystal display module, a display device and a light compensation method, which are used for solving at least one of the problems in the prior art.

In order to achieve the above purpose, the invention adopts the following technical scheme:

the first aspect of the present invention provides a liquid crystal display module, the liquid crystal display module includes a display area, a through hole, and a compensation area at least partially surrounding the through hole,

the liquid crystal display module comprises a first substrate, a second substrate opposite to the first substrate and a liquid crystal layer positioned between the first substrate and the second substrate, wherein the through hole penetrates through the first substrate, the liquid crystal layer and the second substrate;

The first substrate includes:

a display substrate corresponding to the display region for emitting display light; and

the compensation substrate corresponds to the compensation area and comprises a compensation circuit, and the compensation circuit is used for responding to a compensation signal output by the driving chip to optically compensate the position of the through hole;

the second substrate includes:

the first color film layer is corresponding to the display substrate and is used for filtering the display light.

In an alternative embodiment, the compensation substrate comprises a second substrate,

the compensation circuit comprises a first compensation electrode positioned on the second substrate and a second compensation electrode arranged in an insulating way with the first compensation electrode;

the liquid crystal layer further includes a compensation liquid crystal layer driven by the first compensation electrode and the second compensation electrode corresponding to the compensation region.

In an alternative embodiment, the first color film layer includes a first color resist layer, a second color resist layer, a third color resist layer, and a black matrix between two different color resist layers;

the display substrate comprises a first substrate, a first driving electrode positioned on the first substrate and a second driving electrode arranged in an insulating manner with the first driving electrode;

The liquid crystal layer includes a display liquid crystal layer driven by the first driving electrode and the second driving electrode corresponding to the display region.

In an alternative embodiment of the present invention,

the first substrate and the second substrate are arranged in the same layer,

the first driving electrode and the first compensation electrode are arranged in the same layer,

the second driving electrode and the second compensation electrode are arranged in the same layer,

the display liquid crystal layer and the compensation liquid crystal layer are arranged on the same layer,

and the position of the second substrate corresponding to the compensation area is not provided with a color resistance layer with any color.

In an alternative embodiment, the liquid crystal display module further includes:

the first backlight module is arranged on one side of the display substrate, which is far away from the display liquid crystal layer, and is used for providing display light for the display area;

the second backlight module is arranged on one side of the compensation substrate far away from the compensation liquid crystal layer and is used for providing compensation light for the compensation area.

In an alternative embodiment, the display substrate further includes a first light control circuit for lighting the first backlight module in response to the display signal;

the compensation substrate further includes:

At least one photosensitive circuit for sensing light at the through hole position and generating optical data to the driving chip so that the driving chip generates the compensation signal; and

a second light control circuit for lighting the second backlight module in response to the compensation signal generated by the driving chip,

the first compensation electrode and the second compensation electrode are used for driving the compensation liquid crystal layer to conduct light compensation according to the compensation signal.

In an alternative embodiment, the photosensitive circuit includes:

a first photosensitive device on the second substrate for sensing a first color light at the via location to generate first color photosensitive data;

a second photosensitive device on the second substrate for sensing a second color light at the via location to generate second color photosensitive data;

the second substrate further comprises a second color film layer corresponding to the compensation substrate,

the second color film layer comprises a shading layer arranged at a position corresponding to the second photosensitive device, and the orthographic projection of the shading layer on the second substrate covers the orthographic projection of the second photosensitive device on the second substrate.

In an alternative embodiment, the first photosensitive device includes a first end, a second end, and a third end;

the second photosensitive device comprises a fourth end, a fifth end and a sixth end;

the first end and the fourth end are connected to the same first node to access a first starting signal for controlling each photosensitive device to sense,

the second end and the fifth end are connected to the same second node to be connected with a second starting signal for controlling each photosensitive device to sense,

the third end and the sixth end are respectively connected to the driving chip to transmit corresponding color sensing data.

In an alternative embodiment, the photosensitive circuit further includes:

a third photosensitive device on the second substrate for sensing a third color light at the via location to generate third color photosensitive data;

a fourth photosensitive device on the second substrate for sensing a fourth color light at the via location to generate fourth color photosensitive data; and

a fifth photosensitive device on the second substrate for sensing a fifth color light at the via position to generate fifth color photosensitive data;

Wherein, the second color film layer further comprises:

a fourth color resist layer disposed at a position corresponding to the third photosensitive device, the orthographic projection of the fourth color resist layer on the second substrate covering the orthographic projection of the third photosensitive device on the second substrate;

a fifth color resist layer disposed at a position corresponding to the fourth photosensitive device, the orthographic projection of the fifth color resist layer on the second substrate covering the orthographic projection of the fourth photosensitive device on the second substrate;

and the sixth color resistance layer is arranged at a position corresponding to the fifth photosensitive device, and the orthographic projection of the sixth color resistance layer on the second substrate covers the orthographic projection of the fifth photosensitive device on the second substrate.

In an alternative embodiment, the third photosensitive device includes a seventh end, an eighth end, and a ninth end;

the fourth photosensitive device comprises a tenth end, a tenth end and a twelfth end;

the fifth photosensitive device comprises a tenth end, a tenth end and a fifteenth end;

the first end, the fourth end, the seventh end, the tenth end and the thirteenth end are connected to the same first node to access a first start signal for controlling each photosensitive device to sense,

The second end, the fifth end, the eighth end, the tenth end and the fourteenth end are connected to the same second node to access a second start signal for controlling each photosensitive device to sense,

the third end, the sixth end, the ninth end, the twelfth end and the fifteenth end are respectively connected to the driving chip to transmit corresponding color sensing data.

In an alternative embodiment, the center of the orthographic projection of the fourth color resist layer, the fifth color resist layer and the sixth color resist layer on the second substrate coincides with the center of the through hole,

orthographic projections of the fourth color resistance layer, the fifth color resistance layer and the sixth color resistance layer on the second substrate form a loop structure;

the color resistance layer at the corresponding position of the first photosensitive device is provided with a first via structure so as to expose the surface of the first photosensitive device, which is close to one side of the color resistance layer, which is far away from the second substrate;

the color resistance layer at the corresponding position of the second photosensitive device is provided with a second via hole structure, and the shading layer is arranged in the second via hole structure.

In an alternative embodiment, the orthographic projection of the fourth color resist layer, the fifth color resist layer and the sixth color resist layer on the second substrate is a fan ring structure,

The center of orthographic projection of the fourth color resistance layer, the fifth color resistance layer and the sixth color resistance layer on the second substrate is overlapped with the center of the through hole;

the color resistance layer at the corresponding position of the first photosensitive device is provided with a third via structure so as to expose the surface of the first photosensitive device, which is close to the side of the color resistance layer, away from the second substrate;

the color resistance layer at the corresponding position of the second photosensitive device is provided with a fourth via structure, and the shading layer is arranged in the fourth via structure.

In an alternative embodiment, the liquid crystal display module further comprises a driving chip,

the driving chip includes: a first connection terminal connected with the display substrate, a second connection terminal connected with the compensation substrate, a first light control terminal connected with the first light control circuit, and a second light control terminal connected with the second light control circuit,

the first connecting terminal comprises a first electrode connecting terminal which is respectively connected with the first driving electrode and the second driving electrode;

the second connection terminal includes a second electrode connection terminal connected to the first compensation electrode and the second compensation electrode, respectively.

In an alternative embodiment, when the display module further includes a photosensitive circuit,

the driving chip further comprises a third connecting terminal connected with the photosensitive circuit and connected with each photosensitive device respectively;

or alternatively, the process may be performed,

the photosensitive circuit comprises a first photosensitive device and a second photosensitive device,

the third connection terminal includes:

a first sensing connection terminal connected to the third terminal of the first photosensitive device;

a second sensing connection terminal connected to the sixth terminal of the second photosensitive device;

or alternatively, the process may be performed,

the photosensitive circuit also comprises a third photosensitive device, a fourth photosensitive device and a fifth photosensitive device,

the third connection terminal further includes:

a third sensing connection terminal connected to the ninth terminal of the third photosensitive device;

a fourth sensing connection terminal connected to the twelfth terminal of the fourth photosensitive device;

and a fifth sensing connection terminal connected to the fifteenth terminal of the fifth photosensitive device.

A second aspect of the present invention provides a display device comprising a liquid crystal display module according to the first aspect of the present invention.

In an alternative embodiment, the display device further comprises a camera module located at the position of the through hole.

A third aspect of the present invention provides a method for performing light compensation on a display device according to the above embodiment of the present invention, where the method includes:

starting the camera shooting module in response to an operation instruction of a user;

based on the starting instruction of the camera module, the driving chip outputs a compensation signal;

and the compensation circuit performs optical compensation on the camera module according to the compensation signal.

In an optional embodiment, the compensation circuit performs optical compensation on the camera module according to the compensation signal, and further includes:

based on an opening instruction of the camera module, the driving chip outputs a first starting signal and a second starting signal;

in response to the first start signal and the second start signal, the first photosensitive device senses and generates first color photosensitive data, and the second photosensitive device senses and generates second color photosensitive data;

the driving chip generates a compensation signal according to the first color light sensation data and the second color light sensation data, and lights the second backlight module according to the compensation signal.

In an optional embodiment, the compensation circuit performs optical compensation on the camera module according to the compensation signal, and further includes:

In response to the first start signal and the second start signal, the third photosensitive device senses third color photosensitive data for generating third color light, the fourth photosensitive device senses fourth color photosensitive data for generating fourth color light, and the fifth photosensitive device senses fifth color photosensitive data for generating fifth color light;

the driving chip generates compensation signals according to the first color light sensation data, the second color light sensation data, the third color light sensation data, the fourth color light sensation data and the fifth color light sensation data, and lights the second backlight module according to the compensation signals.

The beneficial effects of the invention are as follows:

according to the liquid crystal display module provided by the embodiment of the invention, the compensation substrate is arranged in the compensation area, the compensation circuit is arranged on the compensation substrate, and the compensation circuit is utilized to carry out optical compensation on the position of the through hole, so that the optical compensation effect is improved, and the imaging quality of the camera module applied to the through hole is further improved.

Drawings

The following describes the embodiments of the present invention in further detail with reference to the drawings.

Fig. 1 to 3 are schematic views showing different structures of through holes of a liquid crystal display module;

Fig. 4 is a schematic structural diagram of a liquid crystal display module according to an embodiment of the invention;

FIG. 5 is a schematic view showing a structure of a display substrate according to an embodiment of the present invention;

FIG. 6 is a schematic diagram showing the structure of a compensation substrate according to an embodiment of the present invention;

fig. 7 is a schematic diagram showing distribution of color layers of a liquid crystal display module according to an embodiment of the invention;

fig. 8 is a schematic design diagram showing that the first backlight module and the second backlight module are independent structures according to an embodiment of the invention;

FIG. 9 is a schematic diagram showing the connection between the driving chip and the photosensitive circuit according to the first embodiment of the present invention;

FIG. 10 is a schematic diagram showing the distribution and circuitry of a photosensitive circuit according to a second embodiment of the present invention;

FIG. 11 is a schematic diagram showing the connection of a driving chip and a photosensitive circuit according to a second embodiment of the present invention;

FIG. 12 is a schematic diagram showing the distribution and circuit of a photosensitive circuit according to a third embodiment of the present invention;

FIG. 13 is a schematic diagram showing connection between a driving chip and a photosensitive circuit according to a third embodiment;

FIG. 14 is a schematic diagram showing the connection of a driving chip and a photosensitive circuit according to a third embodiment;

fig. 15 is a schematic structural diagram of a liquid crystal display device using an image capturing module according to an embodiment of the present invention.

Detailed Description

In order to more clearly illustrate the present invention, the present invention will be further described with reference to examples and drawings. Like parts in the drawings are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and that this invention is not limited to the details given herein.

The current LCD product with under-screen camera is difficult to achieve due to the requirement of transmittance, and generally adopts a punching or water drop type design, and the panel considers the design that the wiring avoids punching or water drop special-shaped parts in the area where the punching or water drop screen is close to the camera. Meanwhile, the camera is limited by the punching size, so that the design limit of the camera module is larger, and the product with the under-screen camera is lower in shooting quality due to the limitation of screen punching and screen display.

Based on the problem that the shooting quality is low when the liquid crystal display module is applied to the under-screen shooting module due to poor light of the liquid crystal display module at the through hole structure position in the related art, the invention provides the liquid crystal display module, the display device and the light compensation method, and aims to solve the problem.

In a first embodiment of the present invention, as shown in fig. 1 to 3, the liquid crystal display module includes a display area AA, a through hole 01, and a compensation area BB at least partially surrounding the through hole 01, where the through hole 01 and the compensation area BB are non-display areas, i.e. the area does not have a display function. For example, as shown in fig. 1, the through hole 01 is located at the edge side of the display area AA, the compensation area BB is designed to have a U-shaped structure around the edge of the through hole 01, as shown in fig. 2, the through hole 01 is located inside the display area AA, the compensation area BB is an annular structure around the through hole 01, as shown in fig. 3, the through hole 01 is an arc-shaped structure located at the edge side of the display area AA, and the compensation area BB is a half annular structure, so that the positions of the through hole 01 and the structure of the compensation area BB can be designed according to different requirements.

The structure of the liquid crystal display module according to the embodiment of the present invention will now be described by taking the circular through-hole shown in fig. 2 as an example, and in an alternative embodiment, as shown in fig. 4,

the liquid crystal display module comprises a first substrate 10, a second substrate 20 opposite to the first substrate 10, and a liquid crystal layer 30 between the first substrate 10 and the second substrate 20, wherein the through hole 01 penetrates through the first substrate 10, the liquid crystal layer 30 and the second substrate 20.

In an alternative embodiment, the first substrate 10 is a liquid crystal display substrate, and the light emitting of the liquid crystal display is realized by changing the driving voltage, and the second substrate 20 is a color film substrate, so as to realize the light emitting of different colors.

In an alternative embodiment, as shown in figure 4,

the first substrate 10 includes:

a display substrate 11 corresponding to the display area AA for emitting display light; and

a compensation substrate 12 corresponding to the compensation region BB, the compensation substrate 12 including a compensation circuit (not shown) for optically compensating the through hole 01 in response to a compensation signal outputted from the driving chip;

the second substrate 20 includes:

the first color film layer 21 corresponding to the display substrate 11 is used for filtering the display light.

According to the liquid crystal display module provided by the embodiment of the invention, the compensation substrate 12 is arranged in the compensation area BB, and the compensation circuit is arranged on the compensation substrate 12, so that the position of the through hole 01 is subjected to optical compensation by using the compensation circuit, the optical compensation effect is improved, and the imaging quality of the application camera module at the position of the through hole 01 is further improved.

Example 1

In an alternative embodiment, as shown in fig. 5, the display substrate 11 includes a first substrate 111, a first driving electrode 112 disposed on the first substrate 111, and a second driving electrode 113 disposed to be insulated from the first driving electrode 112, and the liquid crystal layer 30 includes a display liquid crystal layer 31 driven by the first driving electrode 112 and the second driving electrode 113 corresponding to the display area AA. For the display substrate 11, brightness control of the display area AA is achieved by changing the voltage difference between the first drive electrode 112 and the second drive electrode 113, thereby controlling the liquid crystal deflection of the display liquid crystal layer 31.

In an alternative embodiment, as shown in fig. 5, the first color film layer 21 includes a first color resist layer 211, a second color resist layer 212, a third color resist layer 213, and a black matrix (not shown) disposed between two different color resist layers. The first color film layer 21 is disposed on a surface of the display liquid crystal layer 31 on a side far away from the first substrate 111, and the first color resist layer 211 is red, the second color resist layer 212 is green, and the three-color resist layer 213 is blue, so as to realize color display.

In an alternative embodiment, as shown in fig. 6, the compensation substrate 12 includes a second substrate 121,

the compensation circuit includes a first compensation electrode 122 on the second substrate 121 and a second compensation electrode 123 insulated from the first compensation electrode 122;

the liquid crystal layer 30 further includes a compensation liquid crystal layer 32 driven by the first compensation electrode 122 and the second compensation electrode 123 corresponding to the compensation region BB.

Based on the liquid crystal display principle, the display substrate 11 and the compensation substrate 12 of the embodiment of the invention have different functions, the display substrate 11 realizes the display of the display area AA, and the compensation substrate 12 can also change along with the change of the voltage by utilizing the deflection of the liquid crystal so as to realize the characteristic of light modulation and realize different light compensation.

In an alternative embodiment, the first substrate 111 and the second substrate 121 are arranged in the same layer,

the first driving electrode 112 and the first compensation electrode 122 are arranged in the same layer,

the second driving electrode 113 and the second compensation electrode 123 are arranged in the same layer,

the display liquid crystal layer 31 and the compensation liquid crystal layer 32 are arranged in the same layer.

The same-layer arrangement of the embodiment of the invention is that the same material layer is formed on the same film layer surface by different processes, and the material layer forms different structures at different positions, so that the process manufacturing efficiency can be improved by the arrangement.

In an alternative embodiment, the first and second driving electrodes 112 and 113 may employ an advanced super dimension switch (ADS), a Twisted Nematic (TN) display mode, or a vertical alignment (Vertical Alignment, VA) display mode, which has a wide range of applications. Similarly, the first compensation electrode 122 and the second compensation electrode 123 may also employ an advanced super dimension switch (ADS), a Twisted Nematic (TN) display mode, or a vertical alignment (Vertical Alignment, VA) display mode, which has a wide application range.

In a specific light compensation embodiment, no color resist layer of any color is disposed at the position of the second substrate 20 corresponding to the compensation region BB.

This embodiment is an example of the first embodiment, and the electrode of the compensation region BB is described by taking the ADS mode as an example of the compensation substrate 12. As shown in fig. 7, in the display mode, the front projections of the first compensation electrode 122 and the second compensation electrode 123 on the second substrate 121 do not overlap, for example, the first compensation electrode 122 and the second compensation electrode 123 are alternately arranged in the same row direction and the same column direction as shown in fig. 7, all the first compensation electrodes 122 are connected to the same first voltage signal V1 through metal wires, all the second compensation electrodes 123 are connected to the same second voltage signal V2 through metal wires, and the voltage driving design of the compensation region BB is realized.

As shown in fig. 7, color resists of respective colors, such as a first color resist 211, a second color resist 212, and a third color resist 213, are disposed on the first color film 21 of the display area AA, so that color display is realized, but unlike the display area AA, the compensation area BB is not disposed with a color resist, and by this arrangement, the light of the compensation area BB is white light for optical compensation.

As shown in fig. 7, the display substrate 11 includes Gate lines extending in a lateral direction and Data lines extending in a longitudinal direction, the Gate lines and the Data lines intersecting to form regions defining sub-pixels, the Gate lines transmitting Gate driving signals, the Data lines transmitting Data signals, and driving of the display substrate is achieved.

In an alternative embodiment, as shown in fig. 8, the liquid crystal display module further includes:

the first backlight module 41 corresponding to the display substrate 11 is disposed on a side of the display substrate 11 away from the display liquid crystal layer 31, and the first backlight module 41 is configured to provide display light for the display area AA;

the second backlight module 42 corresponding to the compensation substrate 12 is disposed on a side of the compensation substrate 12 away from the compensation liquid crystal layer 32, and the second backlight module 42 is configured to provide compensation light to the compensation area BB.

In an alternative embodiment, the first backlight module 41 and the second backlight module 42 are integrally designed, that is, the first backlight module 41 and the second backlight module 42 are of the same module structure, and the "first" and the "second" are only used for defining and indicating different setting areas by numerals, and are of an integral structure.

Alternatively, in another alternative embodiment, as shown in fig. 8, the first backlight module 41 and the second backlight module 42 are designed as separate structures, that is, the first backlight module 41 and the second backlight module 42 are designed separately, and, illustratively, the plastic frame of the first backlight module 41 and the plastic frame of the second backlight module 42 are both fixed on the same substrate, for example, the metal substrate 50 shown in fig. 8 is fixed.

In this embodiment, the brightness of the second backlight module 42 is greater than that of the first backlight module 41, that is, the second backlight module 42 adopts the LED lamp beads with higher brightness, and the electrode voltage of the compensation area BB is adjusted as required to change and compensate the deflection of the liquid crystal layer 32, so as to realize the effect of light compensation with different brightness.

Based on the structural designs of the first backlight module 41 and the second backlight module 42, a person skilled in the art can select any one of the structural designs of the first backlight module 41 and the second backlight module 42 according to practical applications, and the detailed description is omitted herein.

Based on the scheme of the present invention for designing light, the need for separate circuit control is performed in the display area AA and the compensation area BB, and the backlight of the compensation area BB is selectively turned on or off and the compensation light intensity of the compensation area BB is controlled according to the need for light compensation.

The circuit of the liquid crystal display module according to the embodiment of the invention will now be described.

In an alternative embodiment, the display substrate 11 further includes a first light control circuit (not shown) for lighting the first backlight unit 41 in response to the display signal;

the compensation substrate 12 further includes:

at least one photosensitive circuit for sensing light at the position of the through hole 01 and generating optical data to the driving chip so that the driving chip generates the compensation signal; and

a second light control circuit (not shown) for lighting the second backlight module 42 in response to the compensation signal generated by the driving chip,

the first compensation electrode 122 and the second compensation electrode 123 are used for driving the compensation liquid crystal layer 32 to perform light compensation according to the compensation signal.

According to the embodiment of the invention, the first light control circuit and the second light control circuit which are designed in a partitioned manner are used for controlling the light emission of the corresponding backlight module, the transmission of optical data is realized through the photosensitive circuit, the control of the driving chip and each compensation electrode is realized through the connecting wire, and the light compensation of the compensation area BB and the normal display of the display area AA are realized through the common design of the circuits.

In an alternative embodiment, as shown in fig. 9, the liquid crystal display module further includes a driving chip 60, and the driving chip 60 includes: a first connection terminal 61 connected to the display substrate 11, a second connection terminal 62 connected to the compensation substrate 12, a first photo-control terminal (not shown) connected to the first photo-control circuit, and a second photo-control terminal (not shown) connected to the second photo-control circuit,

wherein, as shown in fig. 9, the first connection terminal 61 includes a first electrode connection terminal connected to the first driving electrode 112 and to the second driving electrode 113, respectively; the second connection terminal 62 includes a second electrode connection terminal connected to the first compensation electrode 122 and the second compensation electrode 123, respectively.

The embodiment of the invention designs the connection between the driving chip 60 and each circuit, and through the arrangement, the connection design of each circuit is realized, and the normal display function and the light compensation function of the liquid crystal display module are ensured.

On the basis of the first embodiment, the invention further provides a second embodiment for optical compensation according to ambient light, and the second embodiment is described in detail below.

Example two

In an alternative embodiment, as shown in fig. 10, the photosensitive circuit 124 includes:

a first photosensitive device 1241 on the second substrate 121 for sensing the first color light at the position of the through hole 01 to generate first color photosensitive data;

a second photosensitive device 1242 on the second substrate 121 for sensing the second color light at the position of the through hole 01 to generate second color photosensitive data;

the second substrate 20 further includes a second color film layer 22 corresponding to the compensation substrate 12,

the second color film layer 22 includes a light shielding layer 221 disposed at a position corresponding to the second photosensitive device 1242, and an orthographic projection of the light shielding layer 221 on the second substrate 121 covers an orthographic projection of the second photosensitive device 1242 on the second substrate 121.

The photosensitive circuit 124 of the embodiment of the invention reflects the change of the surrounding light environment by comparing the current difference between the first color photosensitive data and the second color photosensitive data by utilizing the characteristic that the leakage current Ioff changes after the photosensitive device is illuminated, so as to realize the function of the photosensitive sensor and achieve the function of automatic light compensation according to the different ambient lights.

Unlike the first embodiment without the second color layer 22, the embodiment of the present invention uses the original film structure of the liquid crystal display module to design the color layer of the compensation region BB, and the light shielding layer 221 is disposed in the second color layer 22 corresponding to the position of the compensation substrate 12 to shield the second photosensitive device 1242, where the first photosensitive device 1241 can receive ambient light, and the second photosensitive device 1242 does not feel ambient light under the shielding of the light shielding layer 221, so as to implement light contrast.

The light shielding layer 221 of the present embodiment may be disposed on the same layer as the black matrix of the first color film layer 21, that is, when the black matrix of the first color film layer 21 is fabricated by the same process, the light shielding layer 221 may be formed above the corresponding second photosensitive device 1242 at the same time, thereby improving the process efficiency.

In an alternative embodiment, as shown in fig. 10 or 11,

the first photosensitive device 1241 includes a first end, a second end and a third end;

the second photosensitive device 1242 includes a fourth end, a fifth end, and a sixth end;

the first terminal and the fourth terminal are connected to the same first node A1 to access a first start signal QD1 for controlling each photosensitive device to sense,

the second end and the fifth end are connected to the same second node A2 to access a second start signal QD2 for controlling each photosensitive device to sense,

the third terminal and the sixth terminal are respectively connected to the driving chip 60, and exemplary, as shown in fig. 10, the third terminal is connected to the driving chip 60 through a data transmission line M1, and the sixth terminal is connected to the driving chip 60 through a data transmission line M2 to transmit corresponding color sensing data.

Specifically, in the process of light compensation, the driving chip 60 outputs various signals to be compensated, for example, the first end of the first photosensitive device 1241 obtains the first start signal QD1 output by the driving chip 60, the fourth end obtains the second start signal QD2 output by the driving chip 60, and when the first end and the second end are turned on, the first photosensitive device 1241 senses and transmits color data through the third end, so that the driving chip 60 generates a compensation signal according to the sensed data. The second photosensitive device 1242 operates in the same manner, except that the second photosensitive device 1242 senses the shielded light data.

In an alternative embodiment, the first photosensitive device 1241 and the second photosensitive device 1242 are thin film driving transistors, which has low cost, and the first photosensitive device 1241 and the second photosensitive device 1242 can be designed in the same layer as the thin film driving transistors of the display substrate 11, so that the structure is simple, and the process manufacturing efficiency can be improved. Illustratively, when the photosensitive device is a thin film drive transistor, the first and fourth terminals are gate electrodes, the second and fifth terminals are source electrodes, and the third and sixth terminals are drain electrodes.

The connection between the compensation area BB and the driving chip 60 is designed in the second embodiment of the present invention,

in an alternative embodiment, as shown in fig. 11, when the display module further includes a photosensitive circuit 124, the driving chip 60 further includes a third connection terminal 63 connected to the photosensitive circuit 124, and is connected to each photosensitive device.

In this embodiment, the photosensitive circuit 124 includes a first photosensitive device 1241 and a second photosensitive device 1242,

the third connection terminal 63 includes:

a first sensing connection terminal connected to the third terminal of the first photosensitive device 1241;

a second sensing connection terminal connected to the sixth terminal of the second photosensitive device 1242 transmits the respective sensing data to the driving chip 60 through the third connection terminal 63.

As shown in fig. 10, the photosensitive circuits 124 may be plural, and a structure surrounding the through hole 01 is formed to sense the ambient light at different positions of the through hole 01, thereby improving the sensing accuracy and further improving the compensation effect.

Based on the design of the second embodiment, the third embodiment is further provided on the basis of detecting the ambient light, so that the photosensitive circuit 124 has the function of detecting the colors of the respective light rays in the ambient light, and further improves the compensation effect, and the third embodiment of the present invention will be described.

Example III

In an alternative embodiment, as shown in fig. 12 and 13, the photosensitive circuit 124 further includes:

a third photosensitive device 1243 on the second substrate 121 for sensing the third color light at the position of the through hole 01 to generate third color photosensitive data;

a fourth photosensitive device 1244 on the second substrate 121 for sensing the fourth color light at the position of the through hole 01 to generate fourth color photosensitive data; and

a fifth photosensitive device 1245 on the second substrate 121 for sensing the fifth color light at the position of the through hole 01 to generate fifth color photosensitive data;

Wherein, the second color film layer 22 further comprises:

a fourth color resist layer 222 disposed at a position corresponding to the third photosensitive device 1243, an orthographic projection of the fourth color resist layer 222 on the second substrate 121 covering an orthographic projection of the third photosensitive device 1243 on the second substrate 121;

a fifth color resist layer 223 disposed at a position corresponding to the fourth photosensitive device 1244, an orthographic projection of the fifth color resist layer 223 on the second substrate 121 covering an orthographic projection of the fourth photosensitive device 1244 on the second substrate 121;

a sixth color resist layer 224 disposed at a location corresponding to the fifth photosensitive device 1245, the orthographic projection of the sixth color resist layer 224 on the second substrate 121 covering the orthographic projection of the fifth photosensitive device 1245 on the second substrate 121.

According to the scheme, based on the design of the light shielding layer 221 in the second embodiment, the light shielding layer 221 is arranged in the second color film layer 22 corresponding to the position of the compensation substrate 12 to shield the second photosensitive device 1242, the shielding layer is not arranged at the position of the first photosensitive device 1241, and further, the color resistance layers with different colors are arranged at the positions of the third photosensitive device 1243, the fourth photosensitive device 1244 and the fifth photosensitive device 1245, the first photosensitive device 1241 can receive ambient light, the second photosensitive device 1242 can not feel the ambient light under the shielding of the light shielding layer 221, and the third photosensitive device 1243, the fourth photosensitive device 1244 and the fifth photosensitive device 1245 can feel the ambient light with different colors under the shielding of the color resistance layers, so that the light contrast is realized.

Therefore, the photosensitive circuit 124 of the embodiment of the present invention combines the scheme that the second color film layer 22 in the compensation area BB is designed with color resistance layers of different colors by utilizing the characteristic that the leakage current Ioff of the photosensitive device changes after being illuminated, so that the photosensitive device at the different color resistance layers senses different data, and the light quality of red light, green light and blue light in ambient light can be reflected by comparing different sensed data, so as to realize the function of the light sensor, and have the function of performing automatic light compensation and color compensation according to the ambient light.

For example, the light shielding layer 221 of the present embodiment may be disposed in the same layer as the black matrix of the first color film layer 21, and the color resists of the respective colors may be disposed in the same layer as the color resists of the respective colors of the first color film layer 21, for example, when the black matrix of the first color film layer 21 is fabricated in the same process, the light shielding layer 221 may be formed above the corresponding second photosensitive device 1242 at the same time, thereby improving the process efficiency.

In an alternative embodiment, as shown in figures 12 and 13,

the third photosensitive device 1243 includes a seventh end, an eighth end, and a ninth end;

the fourth photosensitive device 1244 includes a tenth end, and a twelfth end;

The fifth photosensitive device 1245 includes a tenth end, and a fifteenth end;

the first, fourth, seventh, tenth and thirteenth ends are connected to the same first node A1 to receive a first start signal QD1 for controlling each photosensitive device to sense,

the second end, the fifth end, the eighth end, the tenth end and the fourteenth end are connected to the same second node A2 to access a second start signal QD2 for controlling each photosensitive device to sense,

the third end, the sixth end, the ninth end, the twelfth end, and the fifteenth end are respectively connected to the driving chip 60 to transmit corresponding color sensing data.

In a specific example, the driving chip 60 outputs various signals to be compensated for light, for example, the seventh end of the third photosensitive device 1243 obtains the first start signal QD1 output by the driving chip 60, the eighth end obtains the second start signal QD2 output by the driving chip 60, and when the seventh end and the eighth end are turned on, the third photosensitive device 1243 senses and transmits color data through the ninth end, so that the driving chip 60 generates a compensation signal according to the sensed data. The fourth and fifth photosensitive devices 1244 and 1245 operate in the same manner except that the fourth and fifth photosensitive devices 1244 and 1245 sense different color light data.

In an alternative embodiment, the third photosensitive device 1243, the fourth photosensitive device 1244 and the fifth photosensitive device 1245 are thin film driving transistors, which has low cost, and the third photosensitive device 1243, the fourth photosensitive device 1244 and the fifth photosensitive device 1245 can be designed in the same layer as the thin film driving transistors of the display substrate 11, so that the structure is simple, and the process manufacturing efficiency can be improved. Illustratively, when the photosensitive device is a thin film driving transistor, the seventh, tenth and tenth terminals are gate electrodes, the eighth, tenth and tenth terminals are source electrodes, and the ninth, twelfth and fifteenth terminals are drain electrodes.

The third embodiment of the present invention also requires the connection of the compensation area BB and the driving chip 60 to be designed,

the photosensitive circuit 124 further includes a third photosensitive device 1243, a fourth photosensitive device 1244 and a fifth photosensitive device 1245,

the third connection terminal 63 further includes:

a third sensing connection terminal connected to a ninth terminal of the third photosensitive device 1243;

a fourth sensing connection terminal connected to a twelfth terminal of the fourth photosensitive device 1244;

a fifth sensing connection terminal connected to the fifteenth terminal of the fifth photosensitive device 1245 transmits the sensing data generated by the respective photosensitive devices to the driving chip 60 through the third connection terminal 63.

In the embodiment of the present invention, color resists of various colors are disposed in the compensation region BB, and the color resists have different designs, and the design criteria is to have the photosensitive circuits 124 for detecting red light, green light, and blue light. An embodiment of the distribution of the color resist layer according to an embodiment of the present invention will now be described.

In an alternative embodiment, as shown in figure 12,

the center of the orthographic projection of the fourth color resist layer 222, the fifth color resist layer 223 and the sixth color resist layer 224 on the second substrate 121 coincides with the center of the through hole 01,

orthographic projections of the fourth color resist layer 222, the fifth color resist layer 223 and the sixth color resist layer 224 on the second substrate 121 are in a loop structure;

the color resist layer at the corresponding position of the first photosensitive device 1241 has a first via structure to expose a surface of the first photosensitive device 1241, which is close to the side of the color resist layer away from the second substrate 121;

the color resist layer at the corresponding position of the second photosensitive device 1242 has a second via structure, and the light shielding layer 221 is disposed in the second via structure.

In the embodiment of the present invention, the fourth color resist layer 222, the fifth color resist layer 223 and the sixth color resist layer 224 are designed in a ring shape with coincident centers, so that the difference of the light of each color in the ring-shaped area of the entire through hole 01 can be detected, in the embodiment, the third photosensitive device 1243, the fourth photosensitive device 1244 and the fifth photosensitive device 1245 are respectively disposed at the positions of the color resist layers of the corresponding colors, as shown in fig. 13, the photosensitive circuit 124 further includes a first photosensitive device 1241 and a second photosensitive device 1242, no film layer is disposed on the first photosensitive device 1241, and the light shielding layer 221 is disposed on the second photosensitive device 1242, so that the embodiment needs to design the fourth color resist layer 222, the fifth color resist layer 223 and the sixth color resist layer 224 in a ring shape outside the through hole 01.

For example, the fourth color resist layer 222 is a red color resist layer, the fifth color resist layer 223 is a green color resist layer, the sixth color resist layer 224 is a blue color resist layer, if the first photosensitive device 1241 is disposed on the compensation substrate 12 covered by the projection of the red color resist layer, the first via structure is disposed on the red color resist layer above the first photosensitive device 1241 to expose the first photosensitive device 1241, so that the first photosensitive device 1241 can directly detect the ambient light without filtering, and for example, if the second photosensitive device 1242 is disposed on the compensation substrate 12 covered by the projection of the blue color resist layer above the second photosensitive device 1242, the second via structure is disposed on the blue color resist layer above the second photosensitive device 1242, and the light shielding layer 221 is disposed in the second via structure, so that the second photosensitive device 1242 does not detect any ambient light, thereby realizing the data comparison of the respective color light.

Therefore, the first photosensitive device 1241 and the second photosensitive device 1242 of the embodiment of the present invention may be disposed at the positions of the color resists of any color, and the projection positions of the photosensitive circuits 124 shown in fig. 12 and the device connection schematic diagrams shown in fig. 13 are all exemplary descriptions, which can be designed by those skilled in the art according to practical applications, and the circuit structures shown in fig. 13 are formed by each photosensitive device in one photosensitive circuit 124.

In another alternative embodiment, as shown in fig. 14, the orthographic projections of the fourth color resist layer 222, the fifth color resist layer 223 and the sixth color resist layer 224 on the second substrate 121 are in a fan ring structure,

the center of orthographic projection of the fourth color resist layer 222, the fifth color resist layer 223 and the sixth color resist layer 224 on the second substrate 121 coincides with the center of the through hole 01;

the color resist layer at the corresponding position of the first photosensitive device 1241 has a third via structure to expose the surface of the first photosensitive device 1241, which is close to the side of the color resist layer, which is far away from the second substrate 121;

the color resist layer at the corresponding position of the second photosensitive device 1242 has a fourth via structure, and the light shielding layer 221 is disposed in the fourth via structure.

In the embodiment of the present invention, the color resist layers of the respective colors are fan-shaped, and after being connected, a complete ring structure as shown in fig. 14 is formed, that is, the color resist layer of each color detects the color difference in the ambient light of a certain fan-shaped area of the through hole 01.

In this embodiment, the first photosensitive device 1241 and the second photosensitive device 1242 are designed as the color resist layer with the aforementioned ring structure, and will not be described herein again.

The fourth color resist layer 222, the fifth color resist layer 223 and the sixth color resist layer 224 in the embodiment of the invention may be disposed in the same layer as the color resist layer of the corresponding color in the first color film layer 21, i.e. formed in the same process, so as to improve the process efficiency.

For the structural design of the liquid crystal display module of the second embodiment and the third embodiment of the present invention, when the compensation substrate 12 and the display substrate 11 are integrally designed, the original film structure of the display substrate 11 can be used to form the film structure corresponding to the compensation substrate 12, so that no extra Mask cost is added.

Another embodiment of the present invention provides a display device, which includes the liquid crystal display module according to the above embodiment of the present invention. The display device may be any product or component with a display function, such as electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, and a navigator, which is not limited in this embodiment.

In an alternative embodiment, as shown in fig. 15, the display device further includes an image capturing module 70 located at the position of the through hole 01, so as to implement an under-screen image capturing function.

According to the display device of the embodiment of the invention, when the camera module 70 is used for shooting, the driving chip 60 outputs the compensation signal according to the starting of the camera module 70, the light intensity of the ambient light around the through hole 01 and the light sensation data of the light intensities of the various colors are obtained through the light sensation circuits of the first to third embodiments, the driving chip 60 generates the compensation signal to the compensation circuit based on the light sensation data, and the brightness change of the compensation substrate is controlled to realize the light compensation, so that the shooting quality is improved through the process.

Another embodiment of the present invention provides a method for performing light compensation on the display device according to the foregoing embodiment of the present invention, where the method includes:

starting the camera shooting module in response to an operation instruction of a user;

based on the start instruction of the camera module, the driving chip 60 outputs a compensation signal;

and the compensation circuit performs optical compensation on the camera module according to the compensation signal.

According to the light compensation method provided by the embodiment of the invention, the compensation circuit is utilized to carry out light compensation on the camera module at the position of the through hole 01, so that the imaging quality of the camera module can be improved.

The optical compensation method of the embodiment of the invention can be applied to the liquid crystal display module capable of performing optical compensation in the first embodiment.

In an alternative embodiment, for the liquid crystal display module of the second embodiment having the first photosensitive device 1241 and the second photosensitive device 1242, the compensation circuit performs optical compensation on the image capturing module according to the compensation signal, and further includes:

based on the start-up instruction of the camera module, the driving chip 60 outputs a first start signal QD1 and a second start signal QD2;

in response to the first start signal QD1 and the second start signal QD2, the first photosensitive device 1241 generates first color photosensitive data, and the second photosensitive device 1242 generates second color photosensitive data;

The driving chip 60 generates a compensation signal according to the first color light sensing data and the second color light sensing data, and lights the second backlight module 42 according to the compensation signal.

In an alternative embodiment, for the liquid crystal display module of the third embodiment having the first photosensitive device 1241, the second photosensitive device 1242, the third photosensitive device 1243, the fourth photosensitive device 1244 and the fifth photosensitive device 1245, the compensation circuit performs optical compensation on the image capturing module according to the compensation signal, and further includes:

in response to the first start signal QD1 and the second start signal QD2, the third photosensitive device 1243 senses third color photosensitive data generating third color light, the fourth photosensitive device 1244 senses fourth color photosensitive data generating fourth color light, and the fifth photosensitive device 1245 senses fifth color photosensitive data generating fifth color light;

the driving chip 60 generates compensation signals according to the first color light sensing data, the second color light sensing data, the third color light sensing data, the fourth color light sensing data and the fifth color light sensing data, and lights the second backlight module 42 according to the compensation signals.

It should be noted that, the specific embodiments of the optical compensation method in the embodiments of the present invention can refer to the liquid crystal display module and the display device in the foregoing embodiments, and are not repeated herein.

In the description of the present invention, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

It should be understood that the foregoing examples of the present invention are provided merely for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention, and that various other changes and modifications may be made therein by one skilled in the art without departing from the spirit and scope of the present invention as defined by the appended claims.

Claims (19)

1. A liquid crystal display module is characterized in that the liquid crystal display module comprises a display area, a through hole and a compensation area at least partially surrounding the through hole,

the liquid crystal display module comprises a first substrate, a second substrate opposite to the first substrate and a liquid crystal layer positioned between the first substrate and the second substrate, wherein the through hole penetrates through the first substrate, the liquid crystal layer and the second substrate;

the first substrate includes:

a display substrate corresponding to the display region for emitting display light; and

the compensation substrate corresponds to the compensation area and comprises a compensation circuit, and the compensation circuit is used for responding to a compensation signal output by the driving chip to optically compensate the position of the through hole;

the second substrate includes:

the first color film layer is corresponding to the display substrate and is used for filtering the display light.

2. The liquid crystal display module of claim 1, wherein the compensation substrate comprises a second substrate,

the compensation circuit comprises a first compensation electrode positioned on the second substrate and a second compensation electrode arranged in an insulating way with the first compensation electrode;

The liquid crystal layer further includes a compensation liquid crystal layer driven by the first compensation electrode and the second compensation electrode corresponding to the compensation region.

3. The liquid crystal display module according to claim 2, wherein,

the first color film layer comprises a first color resistance layer, a second color resistance layer, a third color resistance layer and a black matrix positioned between the two color resistance layers with different colors;

the display substrate comprises a first substrate, a first driving electrode positioned on the first substrate and a second driving electrode arranged in an insulating manner with the first driving electrode;

the liquid crystal layer includes a display liquid crystal layer driven by the first driving electrode and the second driving electrode corresponding to the display region.

4. The liquid crystal display module according to claim 3, wherein,

the first substrate and the second substrate are arranged in the same layer,

the first driving electrode and the first compensation electrode are arranged in the same layer,

the second driving electrode and the second compensation electrode are arranged in the same layer,

the display liquid crystal layer and the compensation liquid crystal layer are arranged on the same layer,

and the position of the second substrate corresponding to the compensation area is not provided with a color resistance layer with any color.

5. The liquid crystal display module according to claim 3, wherein,

the liquid crystal display module further comprises:

the first backlight module is arranged on one side of the display substrate, which is far away from the display liquid crystal layer, and is used for providing display light for the display area;

the second backlight module is arranged on one side of the compensation substrate far away from the compensation liquid crystal layer and is used for providing compensation light for the compensation area.

6. The liquid crystal display module according to claim 2, wherein,

the display substrate further comprises a first light control circuit, which is used for responding to the display signal to light the first backlight module;

the compensation substrate further includes:

at least one photosensitive circuit for sensing light at the through hole position and generating optical data to the driving chip so that the driving chip generates the compensation signal; and

a second light control circuit for lighting the second backlight module in response to the compensation signal generated by the driving chip,

the first compensation electrode and the second compensation electrode are used for driving the compensation liquid crystal layer to conduct light compensation according to the compensation signal.

7. The liquid crystal display module of claim 6, wherein the light sensing circuit comprises:

A first photosensitive device on the second substrate for sensing a first color light at the via location to generate first color photosensitive data;

a second photosensitive device on the second substrate for sensing a second color light at the via location to generate second color photosensitive data;

the second substrate further comprises a second color film layer corresponding to the compensation substrate,

the second color film layer comprises a shading layer arranged at a position corresponding to the second photosensitive device, and the orthographic projection of the shading layer on the second substrate covers the orthographic projection of the second photosensitive device on the second substrate.

8. The liquid crystal display module according to claim 7, wherein,

the first photosensitive device comprises a first end, a second end and a third end;

the second photosensitive device comprises a fourth end, a fifth end and a sixth end;

the first end and the fourth end are connected to the same first node to access a first starting signal for controlling each photosensitive device to sense,

the second end and the fifth end are connected to the same second node to be connected with a second starting signal for controlling each photosensitive device to sense,

The third end and the sixth end are respectively connected to the driving chip to transmit corresponding color sensing data.

9. The liquid crystal display module of claim 8, wherein the light sensing circuit further comprises:

a third photosensitive device on the second substrate for sensing a third color light at the via location to generate third color photosensitive data;

a fourth photosensitive device on the second substrate for sensing a fourth color light at the via location to generate fourth color photosensitive data; and

a fifth photosensitive device on the second substrate for sensing a fifth color light at the via position to generate fifth color photosensitive data;

wherein, the second color film layer further comprises:

a fourth color resist layer disposed at a position corresponding to the third photosensitive device, the orthographic projection of the fourth color resist layer on the second substrate covering the orthographic projection of the third photosensitive device on the second substrate;

a fifth color resist layer disposed at a position corresponding to the fourth photosensitive device, the orthographic projection of the fifth color resist layer on the second substrate covering the orthographic projection of the fourth photosensitive device on the second substrate;

And the sixth color resistance layer is arranged at a position corresponding to the fifth photosensitive device, and the orthographic projection of the sixth color resistance layer on the second substrate covers the orthographic projection of the fifth photosensitive device on the second substrate.

10. The liquid crystal display module according to claim 9, wherein,

the third photosensitive device comprises a seventh end, an eighth end and a ninth end;

the fourth photosensitive device comprises a tenth end, a tenth end and a twelfth end;

the fifth photosensitive device comprises a tenth end, a tenth end and a fifteenth end;

the first end, the fourth end, the seventh end, the tenth end and the thirteenth end are connected to the same first node to access a first start signal for controlling each photosensitive device to sense,

the second end, the fifth end, the eighth end, the tenth end and the fourteenth end are connected to the same second node to access a second start signal for controlling each photosensitive device to sense,

the third end, the sixth end, the ninth end, the twelfth end and the fifteenth end are respectively connected to the driving chip to transmit corresponding color sensing data.

11. The liquid crystal display module according to claim 9, wherein,

The center of orthographic projection of the fourth color resistance layer, the fifth color resistance layer and the sixth color resistance layer on the second substrate coincides with the center of the through hole,

orthographic projections of the fourth color resistance layer, the fifth color resistance layer and the sixth color resistance layer on the second substrate form a loop structure;

the color resistance layer at the corresponding position of the first photosensitive device is provided with a first via structure so as to expose the surface of the first photosensitive device, which is close to one side of the color resistance layer, which is far away from the second substrate;

the color resistance layer at the corresponding position of the second photosensitive device is provided with a second via hole structure, and the shading layer is arranged in the second via hole structure.

12. The liquid crystal display module according to claim 9, wherein,

the orthographic projection of the fourth color resistance layer, the fifth color resistance layer and the sixth color resistance layer on the second substrate is a fan ring structure,

the center of orthographic projection of the fourth color resistance layer, the fifth color resistance layer and the sixth color resistance layer on the second substrate is overlapped with the center of the through hole;

the color resistance layer at the corresponding position of the first photosensitive device is provided with a third via structure so as to expose the surface of the first photosensitive device, which is close to the side of the color resistance layer, away from the second substrate;

The color resistance layer at the corresponding position of the second photosensitive device is provided with a fourth via structure, and the shading layer is arranged in the fourth via structure.

13. The liquid crystal display module according to any one of claims 3 to 12, further comprising a driving chip,

the driving chip includes: a first connection terminal connected with the display substrate, a second connection terminal connected with the compensation substrate, a first light control terminal connected with the first light control circuit, and a second light control terminal connected with the second light control circuit,

the first connecting terminal comprises a first electrode connecting terminal which is respectively connected with the first driving electrode and the second driving electrode;

the second connection terminal includes a second electrode connection terminal connected to the first compensation electrode and the second compensation electrode, respectively.

14. The liquid crystal display module of claim 13, wherein when the display module further comprises a light sensing circuit,

the driving chip further comprises a third connecting terminal connected with the photosensitive circuit and connected with each photosensitive device respectively;

or alternatively, the process may be performed,

The photosensitive circuit comprises a first photosensitive device and a second photosensitive device,

the third connection terminal includes:

a first sensing connection terminal connected to the third terminal of the first photosensitive device;

a second sensing connection terminal connected to the sixth terminal of the second photosensitive device;

or alternatively, the process may be performed,

the photosensitive circuit also comprises a third photosensitive device, a fourth photosensitive device and a fifth photosensitive device,

the third connection terminal further includes:

a third sensing connection terminal connected to the ninth terminal of the third photosensitive device;

a fourth sensing connection terminal connected to the twelfth terminal of the fourth photosensitive device;

and a fifth sensing connection terminal connected to the fifteenth terminal of the fifth photosensitive device.

15. A display device comprising a liquid crystal display module according to any one of claims 1 to 14.

16. The display device of claim 15, further comprising a camera module at the via location.

17. A method of light compensation for the display device of claim 16, the method comprising:

starting the camera shooting module in response to an operation instruction of a user;

Based on the starting instruction of the camera module, the driving chip outputs a compensation signal;

and the compensation circuit performs optical compensation on the camera module according to the compensation signal.

18. The method of claim 17, wherein the compensation circuit optically compensates the camera module according to the compensation signal, further comprising:

based on an opening instruction of the camera module, the driving chip outputs a first starting signal and a second starting signal;

in response to the first start signal and the second start signal, the first photosensitive device senses and generates first color photosensitive data, and the second photosensitive device senses and generates second color photosensitive data;

the driving chip generates a compensation signal according to the first color light sensation data and the second color light sensation data, and lights the second backlight module according to the compensation signal.

19. The method of claim 18, wherein the compensation circuit optically compensates the camera module according to the compensation signal, further comprising:

in response to the first start signal and the second start signal, the third photosensitive device senses third color photosensitive data for generating third color light, the fourth photosensitive device senses fourth color photosensitive data for generating fourth color light, and the fifth photosensitive device senses fifth color photosensitive data for generating fifth color light;

The driving chip generates compensation signals according to the first color light sensation data, the second color light sensation data, the third color light sensation data, the fourth color light sensation data and the fifth color light sensation data, and lights the second backlight module according to the compensation signals.