CN117596954A - Display substrate and display device - Google Patents

Abstract

The application provides a display substrate and display device relates to and shows technical field, display substrate includes the sensor region and around the regional peripheral region of sensor, the sensor region is used for detecting the ambient light signal, display substrate includes: a light-emitting substrate; the touch layer is arranged on one side of the light-emitting substrate and comprises a plurality of wiring lines which are arranged in a crossing mode, wherein the distribution density of the wiring lines in the sensor area is smaller than that of the wiring lines in the peripheral area.

Description

Display substrate and display device

Technical Field

The embodiment of the application relates to the technical field of display, in particular to a display substrate and a display device.

Background

In general, an Organic Light-Emitting Diode (OLED) has characteristics of self-luminescence, high brightness, wide viewing angle, high contrast, flexibility, low power consumption, etc., and thus has been receiving attention, and as a new generation display mode, it has been gradually replaced with a conventional liquid crystal display, and has been widely used in mobile phone screens, computer displays, full-color televisions, etc. The light transmittance of the OLED device based on the COE (CF on EL) forming a color film layer on the thin film packaged organic electroluminescent device is very low, and it is necessary to sense ambient light through the sensor Kong Caiji and process it by an ambient light sensor.

However, when the brightness of the OLED screen is below 70nit, high-frequency PWM (Pulse Width Modulation ) is generally used to dim, and the corresponding ambient illuminance is low, typically 30lux. For an ambient light sensor, light leakage can be caused by reflection of internal light by a metal wire of a touch control layer, and the light leakage in a display screen can be caused under the ambient light condition of low illumination, so that the processing precision of the ambient light sensor is affected. Therefore, how to improve the recognition accuracy performance of the ambient light sensor under low illumination is a current urgent problem in the art.

Disclosure of Invention

The embodiment of the application provides a display substrate and a display device, which aim to solve the problem of how to improve the identification accuracy performance of an ambient light sensor under low illumination.

An embodiment of the present application provides a display substrate, including a sensor region and a peripheral region surrounding the sensor region, where the sensor region is configured to detect an ambient light signal, the display substrate including:

a light-emitting substrate;

the touch layer is arranged on one side of the light-emitting substrate and comprises a plurality of wiring lines which are arranged in a crossing mode, wherein the distribution density of the wiring lines in the sensor area is smaller than that of the wiring lines in the peripheral area.

In an alternative embodiment, the distribution density of the wirings located within the sensor region is 0; at the edge of the sensor area, the wirings provided with the same layer are connected to each other.

In an alternative embodiment, the distribution density of the wires located within the sensor region is less than 20% of the distribution density of the wires located within the peripheral region; the wiring located within the sensor region is symmetrically distributed about a center of the sensor region.

In an alternative embodiment, the wiring located within the sensor region includes at least one connection line that extends through the sensor region and is in communication with the wiring located within the peripheral region.

In an alternative embodiment, the wiring located in the sensor region includes at least two connection lines, and a plurality of sub-pixels arrayed in a row direction and a column direction;

at least two connecting lines are arranged in parallel along the row direction or the column direction, or at least two connecting lines are arranged in a crossed manner.

In an alternative embodiment, the wiring located within the sensor region further includes:

and an auxiliary line disconnected from the connection line and/or the wiring located in the peripheral region.

In an alternative embodiment, the display substrate further includes:

the black matrix is arranged on one side, away from the light-emitting substrate, of the touch layer, a plurality of light holes are formed in the black matrix in the sensor area, and orthographic projection of the light holes on the light-emitting substrate is not overlapped with the wiring lines;

the color film layer comprises a plurality of optical filters, two adjacent optical filters are arranged at intervals by taking the black matrix, orthographic projections of the optical filters on the light-emitting substrate are not overlapped with the wiring lines, and orthographic projections of the wiring lines on the light-emitting substrate extend along gaps formed by orthographic projections of the light holes and the optical filters on the light-emitting substrate.

In an alternative embodiment, the light emitting substrate includes:

a substrate base;

the light-emitting layer is arranged between the substrate base plate and the touch control layer, and a plurality of sub-pixels which are in one-to-one correspondence with the plurality of optical filters are arranged on the light-emitting layer; a light leakage area is arranged between the sub-pixels in the sensor area, and the orthographic projection of the light leakage area on the substrate is positioned in the orthographic projection of the light hole on the substrate;

the ambient light sensor is arranged on one side, close to the substrate, of the light emitting layer, and orthographic projection of the light transmitting hole on the substrate is located inside orthographic projection of the ambient light sensor on the substrate.

A second aspect of embodiments of the present application provides a display device, including a processing module, and a display substrate according to any one of the first aspect, where the processing module is configured to perform display identification based on the ambient light signal when the display substrate detects the ambient light signal.

In an optional implementation manner, the display device further includes a touch module, the touch layer includes a plurality of touch units, and the touch module is connected to the plurality of touch units and is configured to obtain touch signals based on the plurality of touch units; wherein,

the plurality of touch units comprise at least one first touch unit, the first touch unit is overlapped with the sensor area, the first touch unit comprises subunits positioned in the peripheral area, and the area ratio of the subunits to the first touch unit is greater than or equal to 40%.

The beneficial effects are that:

the application provides a display substrate and display device, the display substrate includes the sensor region and around the peripheral region of sensor region, the sensor region is used for detecting the ambient light signal, the display substrate includes: a light-emitting substrate; the touch layer is arranged on one side of the light-emitting substrate and comprises a plurality of wiring lines which are arranged in a crossing mode, wherein the distribution density of the wiring lines in the sensor area is smaller than that of the wiring lines in the peripheral area. According to the self-luminous sensor, the distribution density of the wiring in the touch layer in the sensor area is reduced, the light leakage proportion of the self-luminous light-emitting layer, which is reflected by the wiring of the touch layer, entering the ambient light sensor is reduced, so that the ambient light sensor is guaranteed to receive light rays with a larger proportion in low illuminance, and the recognition accuracy performance of the ambient light sensor under the low illuminance is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments of the present application will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a sensor area of a display substrate according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of a display substrate according to an embodiment of the present disclosure;

FIG. 3 is a diagram showing an example structure in which connection lines of sensor regions are arranged in parallel according to an embodiment of the present application;

FIG. 4 is a diagram showing an example of the structure of a sensor area interconnection cross arrangement according to an embodiment of the present invention;

FIG. 5 is a diagram showing an example structure in which interconnection lines in a sensor area are arranged to form a grid in a crossing manner according to an embodiment of the present application;

FIG. 6 is a schematic diagram showing the structure of auxiliary wires and connecting wires in a sensor region according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a touch unit of a display device according to an embodiment of the disclosure.

Reference numerals illustrate: a1, a sensor area; a2, peripheral area; a3, displaying a hole area; 100. a substrate base; 101. an ambient light sensor; 102. a PI layer; 103. a light emitting layer; 1031. a sub-pixel; 1031-1, a first color subpixel; 1031-2, a second color subpixel; 1031-3, third color subpixels; 1032. a light leakage region; 104. a first inorganic layer; 105. an encapsulation layer; 106. a second inorganic layer; 107. a touch layer; 1071. wiring; 1071-1, connecting line; 1071-2, auxiliary line; 108. a color film layer; 1081-1, a first color filter; 1081-2, a second color filter; 1081-3, a third color filter; 1082. a light hole; 1083. a black matrix; 109. coating a protective layer; 11. a first touch unit; 111. a subunit.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In the related art, an Organic Light-Emitting Diode (OLED) has characteristics of self-luminescence, high brightness, wide viewing angle, high contrast, flexibility, low power consumption, etc., and has been widely focused as a new generation display mode, and has been gradually replaced with a conventional lcd, and is widely used in mobile phone screens, computer monitors, full-color televisions, etc. The light transmittance of the OLED device based on the COE (CF on EL) forming a color film layer on the thin film packaged organic electroluminescent device is very low, and it is necessary to sense ambient light through the sensor Kong Caiji and process it by an ambient light sensor.

However, when the brightness of the OLED screen is below 70nit, high-frequency PWM (Pulse Width Modulation ) is generally used for dimming, and for the ambient light sensor, in a high-frequency PWM scene, the display device needs to collect the color temperature of ambient light by using a screenshot algorithm, and the calculation accuracy of the screenshot algorithm is directly related to the light leakage amount inside the display screen, the light leakage amount is generally measured by adopting the light leakage ratio (the ratio of the light leakage component to the ambient light component), and if the light leakage ratio is large, the accuracy of the screenshot algorithm of the display device is reduced. For example, when the brightness of the OLED screen is below 70nit, the corresponding ambient light is low, generally 30lux, and for the ambient light sensor, when the spontaneous light inside the display substrate propagates to the light emitting side, light leakage is caused by reflection of the metal wire of the touch layer, and the reflected light leakage enters the ambient light sensor, so that the light leakage ratio of the display screen is reduced. Therefore, in the prior art, light leakage inside the display screen can cause that under the condition of low-illumination ambient light, the self-luminescence inside the display screen is reflected by the metal wire of the touch control layer, and the processing precision of the ambient light sensor can be reduced.

In view of this, the present application proposes a display substrate, fig. 1 shows a schematic view of a sensor area of the display substrate according to an embodiment of the present application, and as shown in fig. 1, the display substrate includes a sensor area A1 and a peripheral area A2, and the peripheral area A2 surrounds the sensor area A1. The sensor area A1 is used for detecting an ambient light signal, and the sensor area A1 may be a sensor hole disposed on the display substrate, and the ambient light signal is received by an ambient light sensor located in the sensor area A1 through the sensor hole, so as to realize detection of the ambient light signal. In an alternative embodiment, the peripheral area A2 further includes a display Hole area A3, and the display Hole area A3 may be a display area Hole (AA Hole) as shown in fig. 1.

In this embodiment, fig. 2 is a schematic diagram of a hierarchical structure of a display substrate according to an embodiment of the present application, as shown in fig. 2, where the display substrate includes a light-emitting substrate and a touch layer 107, the touch layer 107 is disposed on one side of the light-emitting substrate, and the light-emitting substrate is configured to make the display substrate emit light to display an image. The touch layer 107 includes a touch screen panel (Touch Screen Panel, TSP) pattern including a plurality of wirings disposed to cross each other, wherein the plurality of wirings include a first layer wiring (TMB) and/or a second layer wiring (TMA) overlapping each other.

Further, as shown in fig. 2, the light emitting substrate includes a substrate 100; a light emitting layer 103, the light emitting layer 103 is disposed between the substrate 100 and the touch layer 107, and a plurality of sub-pixels 1031 are disposed on the light emitting layer 103, wherein the sub-pixels 1031 include a first color sub-pixel 1031-1 generating a first color light, a second color sub-pixel 1031-2 generating a second color light, and a third color sub-pixel 1031-3 generating a third color light, and the first color, the second color, and the third color are red, green, and blue, respectively; an ambient light sensor 101, the ambient light sensor 101 being arranged on a side of the light emitting layer 103 close to the substrate 100, the ambient light sensor 101 being arranged to receive the ambient light signal. In this embodiment, a light leakage region 1032 is disposed between the sub-pixels 1031 located in the sensor region A1, and a front projection of the light leakage region 1032 on the substrate 100 is located inside a front projection of the ambient light sensor 101 on the substrate 100, so that the ambient light signal reaches the ambient light sensor 101 through the light leakage region 1032 located in the sensor region A1.

In the process of upward propagation of the self-luminescence emitted by the light-emitting substrate, if the wires of the touch layer 107 are arranged in the sensor region in a large number, the self-luminescence is reflected by the wires in the sensor region to cause light leakage, and the reflected light leakage is received by an ambient light sensor in the light-emitting substrate, so that the light leakage ratio of the display substrate is reduced. Therefore, in the embodiment of the present application, in the sensor area A1, the distribution density of the wirings located in the sensor area A1 is smaller than the distribution density of the wirings located in the peripheral area A2, the distribution density being the area of the wirings per unit area.

According to the embodiment of the application, the distribution density of the wires in the sensor area A1 is reduced, so that the area of the wires in the unit area in the peripheral area A2 in the sensor area A1 is smaller, the number of the wires in the sensor area A1 is reduced under the condition that the performance of the peripheral area A2 is not affected, and therefore when self-luminescence propagates to the touch layer 107, the reflection effect of the wires 1071 in the sensor area A1 by the touch layer 107 is weakened, the light leakage amount received by the ambient light sensor is reduced, the light leakage ratio is reduced, the ratio of the ambient light amount is improved, and finally the effective improvement of the recognition precision performance of the ambient light sensor is realized.

In an alternative embodiment, as shown in fig. 2, the display substrate further includes a color film layer 108, where the color film layer 108 is disposed on a side of the touch layer 107 facing away from the light emitting substrate, and the color film layer includes a Black Matrix 1083 and a plurality of filters 1081, two adjacent filters are arranged at intervals of the Black Matrix 1083, the filters 1081 include a first color filter 1081-1, a second color filter 1081-2 and a third color filter 1081-3, and the first color filter 1081-1, the second color filter 1081-2 and the third color filter 1081-3 are respectively in one-to-one correspondence with the second color sub-pixels 1031-2 of the second color light and the third color sub-pixels 1031-3 generating the third color light of the light emitting layer.

In an alternative embodiment, the black matrix 1083 located in the sensor area A1 is provided with a plurality of light holes 1082, the front projection of the light holes 1082 on the substrate 100 is located inside the front projection of the ambient light sensor 101 on the substrate 100, and the front projection of the light leakage area 1032 on the substrate 100 is located inside the front projection of the light holes 1082 on the substrate 100, so that the ambient light signal sequentially passes through the light holes 1082 located in the sensor area A1 and the light leakage area 1032 reaches the ambient light sensor 101. In order to ensure that the plurality of wirings in the touch layer 107 located in the sensor area A1 do not block self-luminescence generated by the sub-pixels 1031 in the light emitting layer 103 and reduce the light efficiency of the display substrate, and do not block the passage of the ambient light signal to the ambient light sensor 101, the orthographic projections of the plurality of light transmitting holes 1082 on the light emitting substrate do not overlap with the plurality of wirings, the orthographic projections of the plurality of optical filters 1081 (i.e., the corresponding plurality of sub-pixels 103) on the light emitting substrate do not overlap with the plurality of wirings, and the orthographic projections of the wirings on the light emitting substrate extend along the gap formed by the orthographic projections of the light transmitting holes 1082 and the optical filters 1081 on the light emitting substrate.

In an alternative embodiment, in order to minimize the self-luminescence reflection effect of the wires of the touch layer 107 in the sensor area A1, the distribution density of the wires in the sensor area A1 is 0, the wires in the touch layer 107 are not disposed in the sensor area A1 but are disposed in the peripheral area A2, and at the edge of the sensor area A1 (i.e., the boundary between the sensor area A1 and the peripheral area A2), the wires disposed on the same layer are connected to form a closed loop, so as to ensure the normal use of the function of the touch layer in the peripheral area. Fig. 7 is a schematic structural diagram of a touch unit of a display device according to an embodiment of the present application, as shown in fig. 7, the touch layer 107 includes a plurality of touch units, and the percentage of each touch unit is used to represent the ratio of the area of the portion located in the peripheral area A2 to the area of the touch unit in the touch layer area corresponding to the touch unit, and the ratio is equivalent to the ratio of the area of the wiring in each touch unit because the distribution density of the wiring in the peripheral area A2 is not reduced. Illustratively, a touch cell with a 100.00% ratio characterizes that all the touch cells are in a peripheral area, and the area of wiring in the touch cell is 100.00%; the touch unit with the occupation ratio of 97.11% represents that 97.11% of the area in the touch unit is in the peripheral area, the rest part of the area is in the display hole area A3, and the area occupation ratio of the wiring in the touch unit is 97.11% because the wiring is not arranged in the display hole area A3.

In this embodiment, the area of the touch unit is greater than the area of the sensor area A1, the plurality of touch units includes at least one first touch unit 11, the first touch unit 11 overlaps with the sensor area A1, and since the portion of the first touch unit 11 located in the sensor area A1 is not provided with a wiring, the touch function of the first touch unit 11 is implemented based on the subunit 111 in the first touch unit 11, and the subunit 111 is an area of the first touch unit 11 that does not overlap with the sensor area A1. In this embodiment, the ratio of the area of the subunit 111 to the area of the first touch unit 11 is greater than or equal to 40%, so as to ensure that the first touch unit 11 can implement a touch function through the wiring of the subunit 111. Illustratively, as shown in fig. 7, the ratio of the area of the sub-unit 111 to the area of the first touch unit 11 is 64.70%, the ratio is greater than 40%, and the ratio of the wiring in the touch unit overlapping the display hole area A3 is much greater than (e.g., 38.9%), so that the touch function of the touch unit can be realized by the touch module of the display device.

In an alternative embodiment, in order to reduce the light leakage ratio in the sensor area A1 and simultaneously ensure the impedance in the sensor area A1, in this embodiment, the distribution density of the wires in the sensor area A1 is less than 20% of the distribution density of the wires in the peripheral area A2. Since the sensor area A1 may have a display failure due to the shielding of self-luminescence by the asymmetric wiring when the wiring distribution in the sensor area A1 is asymmetric, in the embodiment of the present application, when the wiring with a distribution density of 20% or less remains in the sensor area A1, the wiring in the sensor area A1 is symmetrically distributed with respect to the center of the sensor area A1.

In an alternative embodiment, the sub-pixels 1031 in the sensor area A1 are arranged in an array along a row direction and a column direction, and the light leakage areas 1032 are disposed at intervals of the sub-pixels disposed along the column direction. The wiring within the sensor area A1 includes at least one connection line 1071-1, the connection line 1071-1 extending through the sensor area A1 and being in communication with the wiring within the peripheral area A2, the connection line 1071-1 extending along the gap between the sub-pixel 1031 and the light leakage area 1032. Illustratively, when one connection line 1071-1 is included in the sensor area A1, the connection line 1071-1 passes through the center of the sensor area A1 (for example, when the sensor area A1 is circular, the center of the sensor area A1 is the center of the circle) and forms an electrical connection with the wiring of the peripheral area A2; when two connection lines 1071-1 are included in the sensor area A1, the two connection lines 1071-1 are disposed in parallel along the row direction and the column direction of the sub-pixel 1031. Fig. 3 illustrates an exemplary structure of a sensor area with parallel connection lines according to an embodiment of the present application, as shown in fig. 3, two connection lines 1071-1 extend along a gap formed between the sub-pixel 1031 and the light leakage area 1032 (or the light transmission hole 1082), wherein the two connection lines 1071-1 extend along a column direction in which the sub-pixel 1031 is arranged and are parallel to each other, and are symmetrical with respect to a center of the sensor area A1.

In an alternative embodiment, the wiring within the sensor area A1 includes at least two connection lines 1071-1, the at least two connection lines 1071-1 being symmetrically distributed and disposed across about the center of the sensor area A1. For example, fig. 4 shows an exemplary diagram of a structure in which connection lines in a sensor area are disposed in a crossing manner, as shown in fig. 4, where the connection lines in the sensor area A1 include two connection lines 1071-1, and the two connection lines 1071-1 are disposed in a crossing manner and extend along a gap formed between the sub-pixel 1031 and the light leakage area 1032 (or the light transmission hole 1082), where an intersection point of the two connection lines 1071-1 is located at a center position of the sensor area A1 (the center area in fig. 4 is the light leakage area 1032, and at this time, the two connection lines 1071-1 extend around the light leakage area 1032 at the center and form an intersection point outside an apex of the light leakage area 1032). Alternatively, as shown in fig. 4, the connection line 1071-1 extends along a gap formed between the sub-pixel 1031 and the light leakage region 1032 (or the light transmission hole 1082), and when the connection line 1071-1 extends along the outer side of the light leakage region 1032 (or the light transmission hole 1082), it may extend along the outer sides of two adjacent sides of the light leakage region 1032, or may extend along four sides of the light leakage region 1032 (i.e., the edge-wrapping windings of the light leakage region 1032), which is not particularly limited herein.

In an alternative embodiment, the wiring within the sensor area A1 includes at least two connection lines 1071-1, the at least two connection lines 1071-1 being symmetrically distributed about the center of the sensor area A1 and being disposed to cross to form a grid. As an example, fig. 5 illustrates an exemplary structure in which the connection lines in the sensor area are disposed in a crossing manner to form a grid, as shown in fig. 5, where the connection lines 1071-1 in the sensor area A1 include a plurality of connection lines 1071-1, the plurality of connection lines 1071-1 are disposed in a crossing manner and extend along a gap formed by the sub-pixel 1031 and the light leakage area 1032 (or the light transmission hole 1082) to form a cross grid shape as shown in fig. 5, where the intersection points of the plurality of connection lines 1071-1 are located at the center position of the sensor area A1 and at the peripheral position symmetrical with respect to the center of the center, and the intersection points of the connection lines 1071-1 in fig. 5 are located at the periphery of the light leakage area 1032, and where the connection lines 1071-1 extend around the light leakage area 1032 (along the edge wrapping line of the light leakage area 1032 or along the half-wrapping line of the light leakage area 1032) and form the intersection points outside the vertex of the light leakage area 1032.

In an alternative embodiment, the wiring within the sensor area A1 further includes an auxiliary line 1071-2, the auxiliary line 1071-2 being disconnected from the connection line 1071-1 and/or the wiring within the peripheral area A2. In the embodiment of the present application, the auxiliary lines 1071-2 are symmetrically distributed in the sensor area A1 about the center of the sensor area A1. If the distribution of the auxiliary lines 1071-2 in the sensor area A1 is asymmetric, the sensor area A1 is blocked by the asymmetric auxiliary lines due to different self-luminescence effects, so that the light emission in the sensor area A1 is uneven, and the visibility of the display substrate is negatively affected.

It should be noted that the foregoing examples are only some optional cases given for a better understanding of the solution of the present application by those skilled in the art, and the shape of the structure of the connection line may be determined according to the actual situation, and it is only necessary to ensure that the shape of the structure of the connection line is symmetrically distributed about the center of the sensor area A1, and the distribution density of the connection line in the sensor area A1 is less than or equal to 20% of the distribution density of the wiring located in the peripheral area, and the specific shape of the structure of the connection line is not limited herein.

In this embodiment, as shown in fig. 2, the display substrate further includes: a PI layer 102, the PI layer 102 being disposed between the light emitting layer 103 and the ambient light sensor 101; a first inorganic layer 104, an encapsulation layer 105, and a second inorganic layer 106, wherein the first inorganic layer 104, the encapsulation layer 105, and the second inorganic layer 106 are sequentially stacked between the light emitting layer 103 and the touch layer 107; and a coating protection layer 109, wherein the coating protection layer 109 is arranged on one side of the color film layer 108 away from the light-emitting layer 103.

The application provides a display substrate and display device, the display substrate includes the sensor region and around the peripheral region of sensor region, the sensor region is used for detecting the ambient light signal, the display substrate includes: a light-emitting substrate; the touch layer is arranged on one side of the light-emitting substrate and comprises a plurality of wiring lines which are arranged in a crossing mode, wherein the distribution density of the wiring lines in the sensor area is smaller than that of the wiring lines in the peripheral area. According to the self-luminous sensor, the distribution density of the wiring in the touch layer in the sensor area is reduced, the light leakage proportion of the self-luminous light-emitting layer, which is reflected by the wiring of the touch layer, entering the ambient light sensor is reduced, so that the ambient light sensor is guaranteed to receive light rays with a larger proportion in low illuminance, and the recognition accuracy performance of the ambient light sensor under the low illuminance is improved.

Based on the same inventive concept, the embodiment of the application discloses a display device, which comprises a display substrate and a processing module, wherein the processing module is used for performing display identification based on an ambient light signal when the display substrate detects the ambient light signal through the ambient light sensor. In an embodiment of the present application, the display device may be a display or a product including a display, where the display may be a flat panel display (Flat Panel Display, FPD), a micro display, or the like. By way of example, the display device may include a cell phone, tablet, mobile terminal, electronic book, electronic photo frame, etc. It should be noted that, the specific display device may be determined according to practical situations, and the embodiments of the present application are not limited herein.

In an alternative embodiment, the display device further includes a touch module, and the touch layer 107 includes a plurality of touch units, and the touch module is connected to the plurality of touch units, and is configured to obtain a touch signal based on a wiring in each touch unit. Specifically, the plurality of touch units includes at least one first touch unit 11, where the first touch unit 11 overlaps the sensor area A1, and the first touch unit 11 includes a subunit 111 located in the peripheral area A2, and a ratio of the subunit 111 to an area of the first touch unit 11 is greater than or equal to 40%. The touch module obtains the touch signal of the first touch unit 11 through the wiring in the subunit 111, so as to implement the touch function of the first touch unit 11.

In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.

Reference herein to "one embodiment," "an embodiment," or "one or more embodiments" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present disclosure. Furthermore, it is noted that the word examples "in one embodiment" herein do not necessarily all refer to the same embodiment.

In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the disclosure may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The disclosure may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, third, etc. do not denote any order. These words may be interpreted as names.

Finally, it should be noted that: the above embodiments are merely for illustrating the technical solution of the present disclosure, and are not limiting thereof; although the present disclosure has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present disclosure.

The foregoing has described in detail a display substrate and a display device provided by the present application, and specific examples have been applied herein to illustrate the principles and embodiments of the present application, where the above examples are only used to help understand the method and core idea of the present application; meanwhile, as those skilled in the art will have modifications in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.

Claims (10)

1. A display substrate comprising a sensor area and a peripheral area surrounding the sensor area, the sensor area for detecting an ambient light signal, the display substrate comprising:

a light-emitting substrate;

the touch layer is arranged on one side of the light-emitting substrate and comprises a plurality of wiring lines which are arranged in a crossing mode, wherein the distribution density of the wiring lines in the sensor area is smaller than that of the wiring lines in the peripheral area.

2. The display substrate according to claim 1, wherein a distribution density of the wirings located in the sensor region is 0; at the edge of the sensor area, the wirings provided with the same layer are connected to each other.

3. The display substrate according to claim 1, wherein a distribution density of the wirings located in the sensor region is less than or equal to 20% of a distribution density of the wirings located in the peripheral region; the wiring located within the sensor region is symmetrically distributed about a center of the sensor region.

4. A display substrate according to claim 3, wherein the wiring in the sensor area comprises at least one connection line which extends through the sensor area and is in communication with the wiring in the peripheral area.

5. A display substrate according to claim 3, wherein the wiring in the sensor region includes at least two connection lines, and a plurality of sub-pixels arrayed in a row direction and a column direction;

at least two connecting lines are arranged in parallel along the row direction or the column direction, or at least two connecting lines are arranged in a crossed manner.

6. The display substrate of claim 4, wherein the wiring located within the sensor region further comprises:

and an auxiliary line disconnected from the connection line and/or the wiring located in the peripheral region.

7. The display substrate according to any one of claims 1 to 6, wherein the display substrate further comprises:

the black matrix is arranged on one side, away from the light-emitting substrate, of the touch layer, a plurality of light holes are formed in the black matrix in the sensor area, and orthographic projection of the light holes on the light-emitting substrate is not overlapped with the wiring lines;

the color film layer comprises a plurality of optical filters, two adjacent optical filters are arranged at intervals by taking the black matrix, orthographic projections of the optical filters on the light-emitting substrate are not overlapped with the wiring lines, and orthographic projections of the wiring lines on the light-emitting substrate extend along gaps formed by orthographic projections of the light holes and the optical filters on the light-emitting substrate.

8. The display substrate according to claim 7, wherein the light-emitting substrate comprises:

a substrate base;

the light-emitting layer is arranged between the substrate base plate and the touch control layer, and a plurality of sub-pixels which are in one-to-one correspondence with the plurality of optical filters are arranged on the light-emitting layer; a light leakage area is arranged between the sub-pixels in the sensor area, and the orthographic projection of the light leakage area on the substrate is positioned in the orthographic projection of the light hole on the substrate;

the ambient light sensor is arranged on one side, close to the substrate, of the light emitting layer, and orthographic projection of the light transmitting hole on the substrate is located inside orthographic projection of the ambient light sensor on the substrate.

9. A display device comprising a processing module, and a display substrate according to any one of claims 1 to 8, wherein the processing module is configured to perform display identification based on the ambient light signal when the display substrate detects the ambient light signal.

10. The display device of claim 9, further comprising a touch module, wherein the touch layer comprises a plurality of touch units, wherein the touch module is connected to the plurality of touch units and is configured to obtain touch signals based on the plurality of touch units; wherein,

the plurality of touch units comprise at least one first touch unit, the first touch unit is overlapped with the sensor area, the first touch unit comprises subunits positioned in the peripheral area, and the area ratio of the subunits to the first touch unit is greater than or equal to 40%.