Display panel and display device

Abstract

The embodiment of the invention discloses a display panel and a display device. The display panel comprises a color film substrate, an array substrate, at least one light sensor and at least one light transmittance adjusting structure. The color film substrate and the array substrate are oppositely arranged, the light sensors are located on the surface of the side, close to the color film substrate, of the array substrate, and the light transmittance adjusting structures correspond to the light sensors one to one and are located on the sides, away from the array substrate, of the light sensors; the color film substrate comprises at least one first opening, the first openings are in one-to-one correspondence with the light sensors, and orthographic projections of the first openings, the light transmittance adjusting structures and the corresponding light sensors on the surface of the array substrate are at least partially overlapped. According to the display panel, the display effect of integrated black when the screen of the display panel is turned off is effectively improved, the problems of dark state reflectivity and color separation are remarkably solved, and the detection precision of the light sensor on the light sensation and color temperature of ambient light is improved.

Description

Technical Field

[0001] Embodiments of the present invention relate to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] With technological advancements, display products such as mobile phones, computers, and tablets have become standard equipment in people's lives. Whether for work or study, leisure or entertainment, or even commuting, these display products are indispensable. However, their frequent use can also lead to various eye health issues. The brightness and color temperature of ambient light are significant factors in impaired vision. Real-time adjustment of the brightness and color temperature of ambient light has been demonstrated to effectively reduce the damage to vision caused by screen light.

[0003] At present, when ambient light reading technology is combined with display technology, it is necessary to add corresponding light sensors to the display panel, and module openings are generally reserved or the ink area of ​​the screen is hollowed out. However, on the one hand, when the display panel is off, the reflection of the color filter is enhanced when the ambient light is irradiated on the light sensor, resulting in a higher dark reflectivity of the light-sensitive area of ​​the display panel, thereby worsening the integrated black effect. On the other hand, when the display panel is on, the ambient light needs to pass through multiple film layer structures in the display panel in sequence before it can irradiate the light sensor. During this process, the light energy gradually attenuates, and the light sensitivity of the light sensor is small, which may cause the light sensor to have low detection accuracy for the light sensitivity and color temperature of the ambient light. Summary of the Invention

[0004] Embodiments of the present invention provide a display panel and a display device to improve the integrated black display effect of the display panel when the screen is off, significantly improve the dark state reflectivity and color separation problems, and enhance the detection accuracy of the light sensor for the light sensitivity and color temperature of ambient light.

[0005] In one aspect, an embodiment of the present invention provides a display panel comprising a color filter substrate, an array substrate, at least one light sensor, and at least one transmittance adjustment structure;

[0006] The color filter substrate and the array substrate are opposite to each other, the light sensor is located on a surface of the array substrate close to the color filter substrate, and the transmittance adjustment structure corresponds to the light sensor one-to-one and is located on a side of the light sensor away from the array substrate;

[0007] The color filter substrate includes at least one first opening, which corresponds to the light sensor one by one, and the first opening, the transmittance adjustment structure and the orthographic projection of the corresponding light sensor on the surface of the array substrate at least partially overlap.

[0008] On the other hand, an embodiment of the present invention further provides a display device, comprising a backlight module and a display panel as described in any one of the above aspects.

[0009] An embodiment of the present invention provides a display panel and a display device, wherein the display panel includes a color filter substrate, an array substrate, at least one light sensor, and at least one transmittance adjustment structure; the color filter substrate and the array substrate are opposite to each other, the light sensor is located on a surface of the array substrate on a side close to the color filter substrate, and the transmittance adjustment structure corresponds one-to-one with the light sensor and is located on a side of the light sensor away from the array substrate; the color filter substrate includes at least one first opening, the first opening corresponds one-to-one with the light sensor, and the first opening, the transmittance adjustment structure, and the orthographic projection of the corresponding light sensor on the surface of the array substrate at least partially overlap. The display panel is provided with a one-to-one corresponding transmittance adjustment structure and a light sensor. The transmittance of the transmittance adjustment structure itself is adjustable. When the display panel is working with the screen on, the light sensor also needs to work accordingly. At this time, the transmittance of the transmittance adjustment structure to ambient light is adjusted to be larger, and the attenuation of the light energy irradiated on the light sensor is smaller. The light sensitivity of the light sensor meets the requirements for the detection accuracy of the light sensitivity and color temperature of the ambient light. When the display panel is off and not working, the light sensor does not need to work. At this time, the transmittance of the transmittance adjustment structure to ambient light is adjusted to be smaller. The transmittance adjustment structure can regulate the propagation of ambient light, effectively reducing the reflection of ambient light by the color filter substrate, so that the first opening on the color filter substrate is similar in color to the surrounding area, effectively improving the integrated black display effect of the display panel when the screen is off, and significantly improving the dark state reflectivity and color separation problems. The transmittance adjustment structure can also prevent some ambient light from reaching the light sensor, avoiding the situation where the light sensor is disturbed by the incident ambient light and starts detection when it does not need to work, thereby improving the detection accuracy of the light sensor for the light sensitivity and color temperature of the ambient light. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a schematic cross-sectional structural diagram of a display device in the related art;

[0011] Figure 2 is a schematic diagram of a cross-sectional structure of a display panel provided by an embodiment of the present invention;

[0012] Figure 3 yes Figure 2 Schematic diagram of the liquid crystal layer state and the propagation path of ambient light when the display panel is on;

[0013] Figure 4 yes Figure 2 Schematic diagram of the liquid crystal layer state and the propagation path of ambient light when the display panel is off;

[0014] Figure 5is a schematic cross-sectional structural diagram of another display panel provided by an embodiment of the present invention;

[0015] Figure 6 is a schematic cross-sectional structural diagram of another display panel provided by an embodiment of the present invention;

[0016] Figure 7 is a schematic cross-sectional structural diagram of another display panel provided by an embodiment of the present invention;

[0017] Figure 8 is a schematic cross-sectional structural diagram of another display panel provided by an embodiment of the present invention;

[0018] Figure 9 is a schematic cross-sectional structural diagram of another display panel provided by an embodiment of the present invention;

[0019] Figure 10 is a schematic cross-sectional structural diagram of another display panel provided by an embodiment of the present invention;

[0020] Figure 11 is a schematic cross-sectional structural diagram of another display panel provided by an embodiment of the present invention;

[0021] Figure 12 This is a schematic structural diagram of a pixel circuit layer provided by an embodiment of the present invention;

[0022] Figure 13 is a structural diagram of another pixel circuit layer provided by an embodiment of the present invention;

[0023] Figure 14 This is a structural diagram of another pixel circuit layer provided by an embodiment of the present invention;

[0024] Figure 15 This is a structural diagram of another pixel circuit layer provided by an embodiment of the present invention;

[0025] Figure 16 This is a structural diagram of another pixel circuit layer provided by an embodiment of the present invention;

[0026] Figure 17 This is a structural diagram of another pixel circuit layer provided by an embodiment of the present invention;

[0027] Figure 18 is a schematic diagram of a planar structure of a display panel provided by an embodiment of the present invention;

[0028] Figure 19 It is a structural schematic diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0030] Figure 1 is a schematic diagram of a cross-sectional structure of a display device in the related art, such as Figure 1 As shown, the display device includes a display panel 100' and a backlight module 200'. The display panel 100' has opposite light emitting surfaces (which can be understood as Figure 1 The upper surface of the display panel 100' shown) and the backlight surface (which can be understood as Figure 1 The lower surface of the display panel 100' shown in the figure), the light emitting surface is the side surface of the display panel 100' away from the backlight module 200', and the backlight surface is the side surface of the display panel 100' close to the backlight module 200'. The display panel 100' includes a display area AA and a non-display area NA connected to each other. The display panel 100' also includes a color filter substrate 10', an array substrate 20', a light sensor 30' and a liquid crystal filling layer 40'. The color filter substrate 10' and the array substrate 20' are opposite to each other. The liquid crystal filling layer 40' is filled between the color filter substrate 10' and the array substrate 20', and Figure 1 The liquid crystal filling layer 40' shown is filled in both the display area AA and the non-display area NA. It can be understood that in the display area AA, the liquid crystal molecules in the liquid crystal filling layer 40' are located in the electrode structure layer (located in the display area AA, Figure 1 The light emitting unit (located in the display area AA, Figure 1 The intensity of the light emitted by the display panel 100' is changed to realize the normal display of the display panel 100'. However, in the non-display area NA, there is no need to display the image of the display panel 100', and the liquid crystal filling layer 40' does not need to be provided with a corresponding electrode structure layer and a light-emitting unit. The liquid crystal molecules in the liquid crystal filling layer 40' will not be angularly deflected. Only part of the liquid crystal filling layer 40' will be filled in the non-display area NA during the manufacturing process. In addition, for example, in the display area AA, a liquid crystal alignment layer 63' may be further provided on the surface of the side of the color filter substrate 10' close to the liquid crystal filling layer 40', and a liquid crystal alignment layer 63' may also be provided on the surface of the side of the array substrate 20' close to the liquid crystal filling layer 40' ( Figure 1 (not shown) to provide a pre-tilt angle to the liquid crystal molecules in the corresponding liquid crystal filling layer 40'.

[0031] Furthermore, the light sensor 30' is located on a surface of the array substrate 20' close to the color filter substrate 10'. For example, the light sensor 30' can be located in the display area AA of the display panel, or the light sensor 30' can be located in the non-display area NA of the display panel. Figure 1 In the figure, the light sensor 30' is located in the non-display area NA of the display panel as an example for drawing and explanation. The color filter substrate 10' includes a first opening 11', and the first opening 11' is arranged at a position corresponding to the light sensor 30', and the first opening 11' and the orthographic projection of the corresponding light sensor 30' on the surface of the array substrate 20' at least partially overlap. In this way, the ambient light outside the display device can pass through the first opening 11' of the color filter substrate 10' and the liquid crystal filling layer 40' in sequence to irradiate the corresponding light sensor 30', so that the light sensor 30' can detect the light sensitivity and color temperature of the ambient light. However, it should be noted that when the display panel 100' is turned off and not working, the light sensor 30' does not need to work. When the external ambient light irradiates the light sensor 30', the reflection of the color filter 12' is enhanced, resulting in a higher dark state reflectivity of the light-sensitive area of ​​the display panel, thereby worsening the integrated black effect. That is, there is a non-black area on the light-emitting surface of the display panel 100' viewed by the user. Furthermore, when the light sensor 30' is not in operation, the first opening 11' of the color filter substrate 10' and the liquid crystal filling layer 40' cannot block external ambient light. Some ambient light may reach the light sensor 30', causing the light sensor 30' to erroneously detect the light sensitivity and color temperature of the ambient light. Furthermore, when the display panel 100' is in bright operation, the light sensor 30' must also operate accordingly. The ambient light must pass through the first opening 11' of the color filter substrate 10' and the liquid crystal filling layer 40' before reaching the corresponding light sensor 30'. During this process, the light energy gradually decays, resulting in a low light sensitivity of the light sensor 30'. This may result in low accuracy in the light sensitivity and color temperature detection of the ambient light by the light sensor 30'.

[0032] To address the above technical issues, embodiments of the present invention provide a display panel comprising a color filter substrate, an array substrate, at least one photosensor, and at least one transmittance adjustment structure. The color filter substrate and the array substrate are disposed opposite each other, the photosensors being located on a surface of the array substrate proximal to the color filter substrate, and the transmittance adjustment structures corresponding one-to-one with the photosensors and located on a side of the photosensors distal to the array substrate. The color filter substrate comprises at least one first opening, each of the first openings corresponding one-to-one with the photosensors, with the orthographic projections of the first opening, the transmittance adjustment structure, and the corresponding photosensors on the surface of the array substrate at least partially overlapping.

[0033] In the technical solution of the embodiment of the present invention, the display panel is provided with a one-to-one corresponding transmittance adjustment structure and a light sensor. The transmittance of the transmittance adjustment structure itself is adjustable. When the display panel is working on the bright screen, the light sensor also needs to work accordingly. At this time, the transmittance of the transmittance adjustment structure to the ambient light is adjusted to be larger, and the attenuation of the light energy irradiated on the light sensor is small. The light sensitivity of the light sensor meets the requirements for the detection accuracy of the light sensitivity and color temperature of the ambient light. When the display panel is off and not working, the light sensor does not need to work. At this time, the transmittance adjustment structure is sensitive to the ambient light. The transmittance of light is adjusted to be smaller. The transmittance adjustment structure can regulate the propagation of ambient light, effectively reducing the reflection of ambient light by the color film substrate, so that the first opening on the color film substrate is similar in color to the nearby area, effectively improving the integrated black display effect of the display panel when the screen is off, and significantly improving the dark state reflectivity and color separation problems. The transmittance adjustment structure can also prevent part of the ambient light from reaching the light sensor, avoiding the situation where the light sensor is disturbed by the incident ambient light and starts detection when it does not need to work, thereby improving the light sensor's detection accuracy of the light sensitivity and color temperature of the ambient light.

[0034] The above is the core concept of the present invention. The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] Figure 2 is a schematic diagram of a cross-sectional structure of a display panel provided by an embodiment of the present invention, such as Figure 2 As shown, the display panel includes a color filter substrate 10, an array substrate 20, at least one light sensor 30 and at least one transmittance adjustment structure 50; the color filter substrate 10 and the array substrate 20 are opposite to each other, the light sensor 30 is located on the surface of the array substrate 20 on the side close to the color filter substrate 10, and the transmittance adjustment structure 50 corresponds one-to-one with the light sensor 30 and is located on the side of the light sensor 30 away from the array substrate 20; the color filter substrate 10 includes at least one first opening 11, the first opening 11 corresponds one-to-one with the light sensor 30, and the orthographic projections of the first opening 11, the transmittance adjustment structure 50 and the corresponding light sensor 30 on the surface of the array substrate 20 at least partially overlap.

[0036] Specifically, the display panel involved in this embodiment may be a liquid crystal display panel. The color filter substrate 10 and the array substrate 20 are opposite to each other. For example, the display panel may further include a liquid crystal filling layer 40 located between the color filter substrate 10 and the array substrate 20. The liquid crystal filling layer 40 may be located in the display area AA of the display panel. For example, the array substrate 20 may include a driving circuit ( Figure 2 Not shown), pixel electrode ( Figure 2Not shown) and the common electrode ( Figure 2 (not shown), the pixel electrodes and common electrodes receive electrical signals from the driving circuit to generate an electric field. This electric field can drive the liquid crystal molecules in the liquid crystal filling layer 40 to twist. The twisted liquid crystal molecules in the corresponding areas allow light from the backlight module to pass through, thereby realizing image display. For example, the color filter substrate 10 may include a light-shielding structure and a light-transmitting structure. The light-shielding structure can block areas where light is not required to escape, preventing unnecessary light leakage, while the light-transmitting structure can allow light that has passed through the liquid crystal filling layer 40 to escape.

[0037] The display panel further includes at least one light sensor 30, which is located on a surface of the array substrate 20 on a side close to the color filter substrate 10. For example, each light sensor 30 may be located in the display area AA of the display panel, or in the non-display area NA of the display panel. Figure 1 In the figure, one of the light sensors 30 is located in the non-display area NA of the display panel as an example for drawing and explanation. The number and specific positions of the light sensors 30 in this embodiment are only examples and are not limited thereto. They can be selected and set according to actual needs. The light sensor 30 can detect the light sensitivity of the ambient light (which can be understood as the light intensity, brightness and visibility of the ambient light, ranging from bright to dark) and the color temperature (which can be understood as the hue of the ambient light, ranging from warm red to cold blue). Exemplarily, the light sensor 30 generally refers to a device that can sensitively sense light energy from ultraviolet light to infrared light and convert the light energy into an electrical signal. The light sensor 30 can be composed of a photosensitive element. In a specific embodiment, the light sensor 30 can sense the ambient light conditions and inform the processing chip of the display panel to automatically adjust the luminous brightness and / or luminous color temperature of the display panel, improve the user experience and eye protection, reduce the power consumption of the display panel, and maximize the working time of the display panel. In another embodiment, the light sensor 30 helps the display panel provide a soft image. When the ambient light is strong (i.e., the brightness is high), the brightness can be automatically adjusted to high. When the ambient light is weak (i.e., the brightness is low), the brightness can be automatically adjusted to low. In yet another embodiment, the light sensor 30 can measure color by distinguishing the distribution of different wavelengths in the ambient light and obtain the color temperature of the ambient light.

[0038] The display panel also includes at least one transmittance adjustment structure 50. Exemplarily, the number of transmittance adjustment structures 50 is the same as the number of light sensors 30, and the positions of the transmittance adjustment structures 50 and the light sensors 30 correspond one-to-one. The transmittance adjustment structure 50 is located on the side of the corresponding light sensor 30 away from the array substrate 20. In other words, ambient light must first pass through the transmittance adjustment structure 50 before it can reach the corresponding light sensor 30. The light sensor 30 can then detect the luminosity and color temperature of the received ambient light. In other words, the transmittance adjustment structure 50 processes the ambient light reaching the corresponding light sensor 30, and can change the attenuation value of the ambient light to facilitate the normal operation of the light sensor 30. Furthermore, the color filter substrate 10 includes at least one first opening 11. Exemplarily, the number of first openings 11 is the same as the number of light sensors 30, and the positions of the first openings 11 and the light sensors 30 correspond one-to-one. The first opening 11 is located on the side of the corresponding light sensor 30 away from the array substrate 20. That is, ambient light from the outside world must first pass through the first opening 11 before it can illuminate the corresponding light sensor 30. For example, the first opening 11 in the color filter substrate 10 can be understood as an ink-removed area. On this basis, to ensure that ambient light from the outside world can illuminate the light sensor 30, it is necessary to adjust the positions of the first opening 11, the transmittance adjustment structure 50, and the corresponding light sensor 30 so that the orthographic projections of the first opening 11, the transmittance adjustment structure 50, and the corresponding light sensor 30 on the surface of the array substrate 20 at least partially overlap. That is, there is an area where the orthographic projections of the first opening 11, the transmittance adjustment structure 50, and the corresponding light sensor 30 on the surface of the array substrate 20 overlap. Furthermore, this embodiment is illustrated and described using only one light sensor 30, one first opening 11, and one transmittance adjustment structure 50 as an example. The number and specific positions of the light sensors 30, first opening 11, and transmittance adjustment structure 50 are for illustrative purposes only and are not intended to be limiting.

[0039] This embodiment does not limit the relative positional relationship between the transmittance adjustment structure 50 and the first opening 11. For example, the transmittance adjustment structure 50 can be located between the first opening 11 and the corresponding light sensor 30. Then, the orthographic projection of the light sensor 30 on the surface of the array substrate 20 can be located within the orthographic projection of the corresponding transmittance adjustment structure 50 on the surface of the array substrate 20. The orthographic projection of the transmittance adjustment structure 50 on the surface of the array substrate 20 can be located within the orthographic projection of the corresponding first opening 11 on the surface of the array substrate 20. In this way, external ambient light can pass through the first opening 11 and the transmittance adjustment structure 50 in sequence and illuminate the corresponding light sensor 30. Alternatively, for example, the transmittance adjustment structure 50 can be located on a side of the first opening 11 away from the corresponding light sensor 30. In this way, the orthographic projection of the light sensor 30 on the surface of the array substrate 20 can be located within the orthographic projection of the corresponding first opening 11 on the surface of the array substrate 20, and the orthographic projection of the first opening 11 on the surface of the array substrate 20 can be located within the orthographic projection of the corresponding light transmittance adjustment structure 50 on the surface of the array substrate 20. In this way, external ambient light can pass through the transmittance adjustment structure 50 and the first opening 11 in sequence and illuminate the corresponding light sensor 30. Of course, the positional relationship between the transmittance adjustment structure 50 and the first opening 11 can also be other, and the overlap between the first opening 11, the transmittance adjustment structure 50, and the orthographic projection of the corresponding light sensor 30 on the surface of the array substrate 20 can also be other. This embodiment will not be further described in detail.

[0040] In summary, ambient light passes through the first opening 11 and the transmittance adjustment structure 50 and illuminates the corresponding light sensor 30. The transmittance of the transmittance adjustment structure 50 is adjustable. To effectively improve the light sensor 30's accuracy in detecting the ambient light's light sensitivity and color temperature, the transmittance of the transmittance adjustment structure 50 can be adjusted to alter the amount of light energy emitted by the ambient light reaching the corresponding light sensor 30. For example, the transmittance of the transmittance adjustment structure 50 can be adjusted to increase. This transmittance adjustment structure 50 can regulate the propagation of ambient light, effectively reducing reflection of ambient light by the color filter substrate 10. This allows the first opening 11 on the color filter substrate 10 to have a color similar to that of nearby unopened areas, effectively enhancing the display panel's integrated black display effect. For example, the transmittance of the transmittance adjustment structure 50 can be adjusted to decrease. This reduces the attenuation of the light energy irradiating the light sensor 30, allowing the light sensor 30 to receive more light, thereby improving the light sensor 30's accuracy in detecting the ambient light's light sensitivity and color temperature.

[0041] The working principle of the transmittance adjustment structure 50 is described in detail below. Figure 2The transmittance adjustment structure 50 is configured to have a first transmittance when the corresponding light sensor 30 is in the working stage; and a second transmittance when the corresponding light sensor 30 is in the non-working stage; wherein the first transmittance is greater than the second transmittance.

[0042] It is understood that the display panel can be in either bright or dark operation, and the corresponding light sensor 30 can also change accordingly with the display panel's operating state, reducing energy consumption and eliminating the need to keep the light sensor 30 constantly on. In one specific embodiment, when the display panel is in bright operation, the corresponding light sensor 30 is also in operation. At this time, the transmittance of the transmittance adjustment structure 50 can be adjusted to increase, that is, the transmittance adjustment structure 50 has a first transmittance, allowing external ambient light to pass through the first opening 11 and the transmittance adjustment structure 50 and illuminate the corresponding light sensor 30. Furthermore, because the transmittance of the transmittance adjustment structure 50 is relatively high at this time, it can transmit more ambient light, resulting in less attenuation of the light energy incident on the light sensor 30. The light sensitivity of the light sensor 30 meets the required detection accuracy for the light sensitivity and color temperature of the ambient light, and the light sensor 30 has a high detection accuracy for the light sensitivity and color temperature of the ambient light. In addition, when the light sensor 30 is in the working stage, the light sensor 30 can detect the light sensitivity and color temperature of the received ambient light and transmit it to the processing chip of the display panel to automatically adjust the luminous brightness and / or luminous color temperature of the display panel, thereby improving the user's viewing needs and eye protection in real time.

[0043] In another specific embodiment, when the display panel is off and not operating, the corresponding light sensor 30 is also in an inactive state. In this case, the transmittance of the transmittance adjustment structure 50 can be adjusted to be lower, that is, the transmittance adjustment structure 50 has a second transmittance. The transmittance adjustment structure 50 can absorb ambient light or prevent ambient light from reaching the corresponding light sensor 30. Furthermore, since the transmittance of the transmittance adjustment structure 50 is lower, it can regulate the propagation of ambient light, effectively reducing the reflection of ambient light by the color filter substrate 10. This allows the first opening 11 in the color filter substrate 10 to have a similar color to the nearby unopened areas, effectively improving the black display effect of the display panel when the screen is off. Furthermore, the transmittance adjustment structure 50 can reflect more ambient light, significantly attenuating the light energy reaching the light sensor 30. This reduces the amount of light energy reaching the light sensor 30, effectively preventing the light sensor 30 from erroneously activating due to interference from external ambient light. In this case, the light sensor 30 is no longer required to detect the light intensity and color temperature of the ambient light.

[0044] On the basis of the above technical solutions, this embodiment will further explain the specific structure of the transmittance adjustment structure 50 . Please refer to the following embodiments.

[0045] In a specific embodiment, optionally, continue to refer to Figure 2 The transmittance adjustment structure 50 includes a liquid crystal layer 51, a first electrode layer 52, a second electrode layer 53 and an insulating layer 54; the liquid crystal layer 51 is located between the array substrate 20 and the color filter substrate 10, and the light sensor 30 is located between the array substrate 20 and the corresponding liquid crystal layer 51; the first electrode layer 52, the insulating layer 54 and the second electrode layer 53 are stacked in sequence to form a stacked structure 55; the stacked structure 55 is located between the liquid crystal layer 51 and the corresponding light sensor 30.

[0046] Specifically, the transmittance adjustment structure 50 corresponds to the light sensor 30 in a one-to-one relationship. The transmittance adjustment structure 50 includes a liquid crystal layer 51, a first electrode layer 52, a second electrode layer 53, and an insulating layer 54. That is, one light sensor 30 corresponds to one liquid crystal layer 51, one first electrode layer 52, one second electrode layer 53, and one insulating layer 54. Exemplarily, the liquid crystal layer 51 includes multiple liquid crystal molecules. Exemplarily, the first electrode layer 52 and the second electrode layer 53 can be made of indium tin oxide or other materials. The first electrode layer 52 can be configured as a cathode, and the second electrode layer 53 can be configured as an anode. Of course, the anode and cathode of the first and second electrode layers 52, 53 can also be interchanged. Exemplarily, the first and second electrode layers 52, 53 can be transparent film layers. It should be understood that in this embodiment, the liquid crystal layer 51, the first electrode layer 52, and the second electrode layer 53 are not arranged as a single layer. This facilitates precise adjustment of the transmittance of the transmittance adjustment structure 50 corresponding to the light sensor 30 and prevents crosstalk or interference between them. It should also be noted that Figure 1The liquid crystal filling layer 40 shown is filled in both the display area AA and the non-display area NA. The display area AA is provided with an electrode structure layer and a light-emitting unit corresponding to the liquid crystal filling layer 40. The liquid crystal molecules in the liquid crystal filling layer 40 can be angularly deflected. The non-display area NA is not provided with an electrode structure layer and a light-emitting unit corresponding to the liquid crystal filling layer 40. The liquid crystal molecules in the liquid crystal filling layer 40 will not be angularly deflected. If the liquid crystal layer 51 mentioned in this embodiment and subsequent embodiments is provided in the non-display area NA (in this case, the corresponding light sensor 30 is also provided in the non-display area), NA), it can be understood that the liquid crystal layer 51 reuses part of the liquid crystal filling layer 40 in the non-display area NA, and the liquid crystal molecules in the liquid crystal layer 51 can be angularly deflected under the action of the first electrode layer 52 and the second electrode layer 53. Moreover, if the liquid crystal layer 51 is set in the display area AA (in this case, the corresponding light sensor 30 is also set in the display area AA), it can be understood that the liquid crystal layer 51 reuses part of the liquid crystal filling layer 40 in the display area AA, and the liquid crystal molecules in the liquid crystal layer 51 can be angularly deflected under the action of the first electrode layer 52 and the second electrode layer 53. This embodiment is only an example, and the specific configuration of the liquid crystal layer 51 can be selected according to actual conditions.

[0047] For any transmittance adjustment structure 50, the liquid crystal layer 51 is located between the array substrate 20 and the color filter substrate 10, and the light sensor 30 is located between the array substrate 20 and the corresponding liquid crystal layer 51. For example, during the preparation process, the light sensor 30 can be first attached to the surface of the array substrate 20 close to the color filter substrate 10, and then the liquid crystal box process is performed between the array substrate 20 and the color filter substrate 10 to form the corresponding liquid crystal layer 51. In addition, the first electrode layer 52, the insulating layer 54 and the second electrode layer 53 are stacked in sequence to form a stacked structure 55. In other words, the first electrode layer 52 and the second electrode layer 53 are respectively located on the two side surfaces of the insulating layer 54 that are away from each other. The insulating layer 54 can spatially separate the first electrode layer 52 and the second electrode layer 53 to avoid the problem of short circuit or leakage caused by direct contact between the first electrode layer 52 and the second electrode layer 53. For example, Figure 2 The first electrode layer 52 is located on the side of the insulating layer 54 close to the corresponding light sensor 30, and the second electrode layer 53 is located on the side of the insulating layer 54 close to the corresponding liquid crystal layer 51. Of course, the positions of the first electrode layer 52 and the second electrode layer 53 can also be interchanged.

[0048] The stacked structure 55 is positioned between the liquid crystal layer 51 and the corresponding light sensor 30. An electric field is formed between the first electrode layer 52 and the second electrode layer 53 within the stacked structure 55. This electric field causes the transmittance of the liquid crystal layer 51 to change, effectively making the transmittance of the entire transmittance-adjusting structure 50 adjustable. To effectively improve the light sensitivity and color temperature detection accuracy of the light sensor 30, the transmittance of the liquid crystal layer 51 can be adjusted by properly adjusting the magnitude or polarity of the electric field formed between the first electrode layer 52 and the second electrode layer 53, thereby varying the amount of light energy incident on the corresponding light sensor 30. For example, by increasing the transmittance of the liquid crystal layer 51, the attenuation of the ambient light energy during propagation is significantly reduced, effectively reducing reflection of ambient light by the color filter substrate 10. This results in the first opening 11 on the color filter substrate 10 having a color similar to that of the adjacent unopened areas, effectively enhancing the display panel's all-black display effect. For example, the transmittance of the liquid crystal layer 51 itself can be adjusted to be smaller, so that the attenuation of the light energy irradiated on the light sensor 30 is smaller, so that the light sensor 30 receives more light, which is beneficial to improving the light sensor 30's detection accuracy of the ambient light and color temperature.

[0049] The working principles of the liquid crystal layer 51, the first electrode layer 52 and the second electrode layer 53 are described in detail below. Figure 2 The first electrode layer 52 and the second electrode layer 53 are configured as follows: when the corresponding light sensor 30 is in the working stage, a first preset electric field is applied to the liquid crystal layer 51; when the corresponding light sensor 30 is in the non-working stage, a second preset electric field is applied to the liquid crystal layer 51; the liquid crystal layer 51 is configured as follows: under the first preset electric field, the liquid crystal molecules in the liquid crystal layer 51 are in a first propagation path modulation state, so that the liquid crystal layer 51 has a first transmittance; under the second preset electric field, the liquid crystal molecules in the liquid crystal layer 51 are in a second propagation path modulation state, so that the liquid crystal layer 51 has a second transmittance; wherein the first transmittance is greater than the second transmittance.

[0050] The light sensor 30 may be in a working phase or a non-working phase. For example, the specific phase of the light sensor 30 may be determined by the relevant control signals and feedback signals within the display panel. The polarity or magnitude of the first preset electric field and the second preset electric field are different and may be selected according to actual needs. For example, the first preset electric field may be a positive electric field or a negative electric field, and the second preset electric field may be a zero electric field. The first propagation path modulation state and the second propagation path modulation state refer to the angular deflection state of the liquid crystal molecules, which is different from the working principle of the liquid crystal molecules in the liquid crystal filling layer 40 in the display area AA (to achieve luminous display). Here, the liquid crystal molecules in the liquid crystal layer 51 can adjust the propagation path of the incident ambient light, thereby changing the amount of ambient light reaching the corresponding light sensor 30. On this basis, the first transmittance means that the liquid crystal layer 51 can allow more external ambient light to reach the corresponding light sensor 30 after the angle of the liquid crystal molecules is deflected, and the second transmittance means that the liquid crystal layer 51 can allow less external ambient light to reach the corresponding light sensor 30 after the angle of the liquid crystal molecules is deflected. The more and less ambient light reaching the corresponding light sensor 30 are two relative concepts, which can be selected and adjusted as needed.

[0051] It is understandable that the light sensor 30 can be in a working stage or a non-working stage. In order to reduce energy consumption, it is not necessary to keep the light sensor 30 turned on all the time. Figure 3 yes Figure 2 The schematic diagram of the liquid crystal layer state and the propagation path of ambient light when the display panel is on is shown in FIG. Figure 3As shown, when the corresponding light sensor 30 is in the working stage, the first electrode layer 52 and the second electrode layer 53 can apply a first preset electric field to the liquid crystal layer 51. For example, the first preset electric field can be reasonably selected based on the subsequent required transmittance. Under the first preset electric field, the angles of the liquid crystal molecules in the liquid crystal layer 51 are deflected, and the liquid crystal molecules in the liquid crystal layer 51 can be in a first propagation path modulation state, thereby adjusting the propagation path of the incident ambient light. In one specific embodiment, the external ambient light is natural light. This natural light first passes through the first polarizer 61 (also known as the upper polarizer). Natural light parallel to its absorption axis direction (also known as the polarization direction of the first polarizer 61) is absorbed by the first polarizer 61. The natural light passing through the first polarizer 61 can be understood as becoming linearly polarized light. For example, the polarization direction of the first polarizer 61 can be the transverse axis direction. This linearly polarized light continues to propagate to the liquid crystal layer 51, where the liquid crystal molecules therein become disordered, causing the overall refractive index of the liquid crystal layer 51 to change. This, in turn, alters the propagation direction of the light and the product's hue. This linearly polarized light can then be converted to circularly polarized light or light with a greater number of polarization states, allowing more light to reach the corresponding light sensor 30. This portion of light then reaches the second polarizer 62 (also known as the lower polarizer). Light parallel to its absorption axis (i.e., the polarization direction of the second polarizer 62) is absorbed by the second polarizer 62. Some unabsorbed light is reflected, increasing the amount of light reaching the corresponding light sensor 30. For example, the polarization direction of the second polarizer 62 can be along the longitudinal axis. This results in the liquid crystal layer 51 having a first light transmittance. In this case, the first electrode layer 52 and the second electrode layer 53 can be transparent film layers, and the overall light transmittance of the transmittance-adjusting structure 50 is adjusted to be higher. This allows ambient light to sequentially pass through the first opening 11, the liquid crystal layer 51, and the stacked structure 55, and irradiate the corresponding light sensor 30. Furthermore, because the overall transmittance of the transmittance adjustment structure 50 is relatively high, the liquid crystal layer 51 can modulate the propagation path of more ambient light to the corresponding light sensor 30. Consequently, the attenuation of the light energy irradiating the light sensor 30 is relatively low, and the light sensitivity of the light sensor 30 meets the requirements for the detection accuracy of the ambient light and the color temperature. Consequently, the light sensor 30 has a high detection accuracy of the ambient light and the color temperature.

[0052] For example, Figure 4 yes Figure 2 The schematic diagram of the liquid crystal layer state and the propagation path of ambient light when the display panel is turned off is shown in FIG. Figure 4As shown, when the corresponding light sensor 30 is in a non-operating state, the first electrode layer 52 and the second electrode layer 53 can apply a second preset electric field to the liquid crystal layer 51. For example, the second preset electric field can be appropriately selected based on the subsequent desired transmittance. Under the second preset electric field, the angles of the liquid crystal molecules in the liquid crystal layer 51 return to their initial state (this initial state can be understood as the deflection angle and position maintained by the corresponding liquid crystal alignment layer 63). The liquid crystal molecules in the liquid crystal layer 51 can then assume a second propagation path modulation state, adjusting the propagation path of the incident ambient light. In one specific embodiment, the external ambient light is natural light. This natural light first passes through the first polarizer 61 (also known as the upper polarizer). Natural light parallel to its absorption axis (also known as the polarization direction of the first polarizer 61) is absorbed by the first polarizer 61. The natural light that passes through the first polarizer 61 can be understood as becoming linearly polarized light. For example, the polarization direction of the first polarizer 61 can be the transverse axis. This linearly polarized light continues to propagate and reaches the liquid crystal layer 51. The liquid crystal molecules in the liquid crystal layer 51 are neatly arranged and do not change the propagation direction of the light. Afterwards, this portion of linearly polarized light will also reach the second polarizer 62 (also known as the lower polarizer). The linearly polarized light parallel to its absorption axis (also known as the polarization direction of the second polarizer 62) is absorbed by the second polarizer 62. For example, the polarization direction of the second polarizer 62 can be the longitudinal axis direction, and the polarization direction of the first polarizer 61 is perpendicular to the polarization direction of the second polarizer 62. In this way, the external ambient light is absorbed by the first polarizer 61 and the second polarizer 62 respectively. The reflectivity of the ambient light at the first opening 11 on the color filter substrate 10 is reduced, and the difference in reflectivity between the first opening 11 on the color filter substrate 10 and the nearby unopened area is small, thereby improving the display effect of the integrated black. That is, the liquid crystal layer 51 has a second transmittance. In this case, the first electrode layer 52 and the second electrode layer 53 can be transparent film layers, and the transmittance of the entire transmittance adjustment structure 50 is adjusted to be smaller. The liquid crystal layer 51 can modulate the propagation path of more ambient light to a position away from the corresponding light sensor 30. The transmittance adjustment structure 50 as a whole can reflect more ambient light, and the light energy irradiated on the light sensor 30 is greatly attenuated, so that the color of the first opening 11 on the color filter substrate 10 is similar to that of the nearby unopened area, effectively improving the display effect of the display panel when the screen is off. In addition, the light energy irradiated on the light sensor 30 is relatively small, which can also effectively prevent the light sensor 30 from being erroneously activated due to interference from external ambient light. In this case, the light sensor 30 is no longer required to detect the light sensitivity and color temperature of the ambient light.

[0053] In another embodiment, optionally, Figure 5 is a schematic diagram of a cross-sectional structure of another display panel provided by an embodiment of the present invention, such as Figure 5As shown, the transmittance adjustment structure 50 includes a liquid crystal layer 51, a first electrode layer 52, a second electrode layer 53 and an insulating layer 54; the liquid crystal layer 51 is located between the array substrate 20 and the color filter substrate 10, and the light sensor 30 is located between the array substrate 20 and the corresponding liquid crystal layer 51; the first electrode layer 52, the insulating layer 54 and the second electrode layer 53 are stacked in sequence to form a stacked structure 55; the stacked structure 55 is located between the liquid crystal layer 51 and the color filter substrate 10.

[0054] Specifically, Figure 5 and Figure 2 In contrast, only the position of the stacked structure 55 is adjusted. That is, Figure 5 The stacked structure 55 shown is located between the liquid crystal layer 51 and the color filter substrate 10. For example, the first electrode layer 52 is located on the side of the insulating layer 54 close to the color filter substrate 10, and the second electrode layer 53 is located on the side of the insulating layer 54 close to the corresponding liquid crystal layer 51. Of course, the positions of the first electrode layer 52 and the second electrode layer 53 can also be interchanged. And, Figure 5 It can also be clearly seen that the laminated structure 55 is arranged on the side of the color filter substrate 10 close to the array substrate 20. It can be understood that the first electrode layer 52 and the second electrode layer 53 in the laminated structure 55 are both on the C side (the side of the color filter substrate 10), and a parallel electric field is formed between the first electrode layer 52 and the second electrode layer 53. It should also be noted that the laminated structure 55 is arranged on the side of the color filter substrate 10 close to the array substrate 20. In fact, the thickness of the laminated structure 55 is relatively small. The color filter substrate 10 and the liquid crystal alignment layer 63 can be understood as a contacting film relationship. Figure 5 The figure only shows the positional relationship between the stacked structure 55 and the color filter substrate 10 in an enlarged manner.

[0055] For example, when the corresponding light sensor 30 is in an operating state, the first electrode layer 52 and the second electrode layer 53 can apply a first predetermined electric field to the liquid crystal layer 51, causing the liquid crystal molecules in the liquid crystal layer 51 to rotate and enter a first propagation path modulation state. The first opening 11 of the color filter substrate 10 can then be transparent, further enabling the light sensor 30 to operate. When the corresponding light sensor 30 is in an inoperative state, the first electrode layer 52 and the second electrode layer 53 can apply a second predetermined electric field to the liquid crystal layer 51, causing the liquid crystal molecules in the liquid crystal layer 51 to rotate and enter a second propagation path modulation state. The first opening 11 of the color filter substrate 10 can then be black, thereby preventing the color filter 12 from reflecting increased light when ambient light strikes the corresponding light sensor 30. This would further result in a higher dark-state reflectivity in the light-sensitive area of ​​the display panel, resulting in a reflectivity discrepancy between the area corresponding to the first opening 11 and other areas of the color filter substrate 10, leading to a poorer black-out effect. Thus, this embodiment can improve the black-out effect of a display panel with a light sensor 30. The detailed working principles of the liquid crystal layer 51 , the first electrode layer 52 and the second electrode layer 53 can be referred to the above embodiment, which will not be described in detail in this embodiment.

[0056] In another specific embodiment, optionally, Figure 6 is a schematic diagram of a cross-sectional structure of another display panel provided by an embodiment of the present invention, such as Figure 6 As shown, the transmittance adjustment structure 50 includes a liquid crystal layer 51, a first electrode layer 52 and a second electrode layer 53; the first electrode layer 52 is located on the side of the color filter substrate 10 close to the corresponding light sensor 30, the second electrode layer 53 is located on the side of the corresponding light sensor 30 close to the color filter substrate 10, and the liquid crystal layer 51 is located between the first electrode layer 52 and the second electrode layer 53.

[0057] Specifically, Figure 6 and Figure 2 、 Figure 5 In contrast, the insulating layer 54 is removed and the positions of the first electrode layer 52 and the second electrode layer 53 are adjusted. That is, for any one of the transmittance adjustment structures 50, Figure 6 The first electrode layer 52 is shown as being located on the side of the color filter substrate 10 close to the corresponding light sensor 30, and the second electrode layer 53 is located on the side of the corresponding light sensor 30 close to the color filter substrate 10. It can be understood that the first electrode layer 52 is on the C side (the color filter substrate 10 side), and the second electrode layer 53 is on the T side (the array substrate 20 side). A vertical electric field is formed between the first electrode layer 52 and the second electrode layer 53. For example, Figure 6The light transmittance adjustment structure 50 shown can be located in the non-display area NA. In this case, the TN mode can be used in the display area AA, and one of the pixel electrode and the common electrode corresponding to the liquid crystal filling layer 40 in the display area AA can be located on the side of the color filter substrate 10 close to the array substrate 20, and the other can be located on the side of the array substrate 20 close to the color filter substrate 10. In this way, the first electrode layer 52 can be made in the same process as one of the pixel electrode and the common electrode, and the second electrode layer 53 can be made in the same process as the other of the pixel electrode and the common electrode, thereby simplifying the manufacturing process and improving manufacturing efficiency. In addition, the liquid crystal layer 51 is located between the first electrode layer 52 and the second electrode layer 53, that is, the liquid crystal layer 51 is located between the color filter substrate 10 and the array substrate 20. It should also be noted that the first electrode layer 52 is located on the side of the color filter substrate 10 close to the corresponding light sensor 30. In fact, the thickness of the first electrode layer 52 is relatively small. The relationship between the color filter substrate 10 and the liquid crystal alignment layer 63 can be understood as a contacting film relationship. Figure 6 The figure only shows the positional relationship between the first electrode layer 52 and the color filter substrate 10 in an enlarged manner.

[0058] For example, when the corresponding light sensor 30 is in an operating state, the first electrode layer 52 and the second electrode layer 53 can apply a first predetermined electric field to the liquid crystal layer 51, causing the liquid crystal molecules in the liquid crystal layer 51 to rotate and enter a first propagation path modulation state. The first opening 11 of the color filter substrate 10 can then be transparent, further enabling the light sensor 30 to operate. When the corresponding light sensor 30 is in an inoperative state, the first electrode layer 52 and the second electrode layer 53 can apply a second predetermined electric field to the liquid crystal layer 51, causing the liquid crystal molecules in the liquid crystal layer 51 to rotate and enter a second propagation path modulation state. The first opening 11 of the color filter substrate 10 can then be black, thereby preventing the color filter 12 from reflecting increased light when ambient light strikes the corresponding light sensor 30. This would further result in a higher dark-state reflectivity in the light-sensitive area of ​​the display panel, resulting in a reflectivity discrepancy between the area corresponding to the first opening 11 and other areas of the color filter substrate 10, leading to a poorer black-out effect. Thus, this embodiment can improve the black-out effect of a display panel with a light sensor 30. The detailed working principles of the liquid crystal layer 51 , the first electrode layer 52 and the second electrode layer 53 can be referred to the above embodiment, which will not be described in detail in this embodiment.

[0059] Optionally, continue to refer to Figure 2-Figure 6 The display panel also includes a first polarizer 61, which is located on the side of the color filter substrate 10 away from the array substrate 20; the orthographic projection of the light sensor 30 on the surface of the array substrate 20 is located within the orthographic projection of the first polarizer 61 on the surface of the array substrate 20.

[0060] Specifically, for the light sensor 30, the first polarizer 61 is located along the propagation path of ambient light from the outside to the light sensor 30. The provision of the first polarizer 61 can provide a certain light shielding effect. For example, when the corresponding light sensor 30 is not in operation, the first polarizer 61 can also prevent some ambient light from reaching the light sensor 30, thereby improving the integrated black effect of the display panel with the light sensor 30. This embodiment stipulates that the orthographic projection of the light sensor 30 on the surface of the array substrate 20 is located within the orthographic projection of the first polarizer 61 on the surface of the array substrate 20. In other words, the first polarizer 61 can shield the corresponding light sensor 30 from external ambient light. In addition, due to the modulation effect of the liquid crystal layer 51 on the propagation path of ambient light, the first polarizer 61 corresponding to the light sensor 30 can also be removed. In other words, if the light shielding effect of the liquid crystal layer 51 is good, the first polarizer 61 can also be omitted.

[0061] Optionally, continue to refer to Figure 2-Figure 6 , the display panel also includes a first polarizer 61 and a second polarizer 62. The first polarizer 61 is located on the side of the color filter substrate 10 away from the array substrate 20, and the second polarizer 62 is located on the side of the array substrate 20 away from the color filter substrate 10. For example, the first polarizer 61 can be understood as an upper polarizer, and the second polarizer 62 can be understood as a lower polarizer. It can be understood that in the display area AA, the first polarizer 61 and the second polarizer 62 can regulate the light of the backlight module to ensure the normal display of the display panel. For example, in the display area AA, the first polarizer 61 and the second polarizer 62 need to be set, while in the non-display area NA, the first polarizer 61 can be reasonably set according to the above needs, and the second polarizer 62 may not be set.

[0062] Optionally, continue to refer to Figure 2-Figure 6 , the display panel also includes a liquid crystal alignment layer 63, the transmittance adjustment structure 50 includes a liquid crystal layer 51, a first electrode layer 52, a second electrode layer 53 and an insulating layer 54, the liquid crystal alignment layer 63 can be arranged corresponding to the liquid crystal layer 51, and the liquid crystal alignment layer 63 can provide a pre-tilt angle for the liquid crystal molecules in the corresponding liquid crystal layer 51, so that the liquid crystal molecules in the liquid crystal layer 51 can quickly and accurately rotate to present the first propagation path modulation state or the second propagation path modulation state. Exemplarily, the liquid crystal alignment layer 63 can be located on the side of the color filter substrate 10 close to the liquid crystal layer 51, or the liquid crystal alignment layer 63 can be located on the side of the base substrate 20 close to the liquid crystal layer 51. Exemplarily, if the liquid crystal alignment layer 63 and the liquid crystal layer 51 are in the non-display area NA, the liquid crystal alignment layer 63 can be a whole layer structure, or the liquid crystal alignment layer 63 can also be a plurality of independent structures, the number of liquid crystal alignment layers 63 is the same as the number of liquid crystal layers 51, and the liquid crystal alignment layer 63 and the liquid crystal layer 51 can be arranged in a one-to-one correspondence. Optionally, continue to refer to Figure 2-Figure 6 The display panel further includes a cover plate 70, which is located on a side of the color filter substrate 10 away from the array substrate 20; the cover plate 70 includes at least one second opening 71, and the second opening 71 corresponds to the light sensor 30 one-to-one, and the second opening 71, the first opening 11, the transmittance adjustment structure 50 and the orthographic projection of the corresponding light sensor 30 on the surface of the array substrate 20 at least partially overlap.

[0063] Specifically, the display panel also includes a cover plate 70, which protects the underlying liquid crystal display module from oxygen, dust, and other external elements. The cover plate 70 can also be silk-screened with different colors or patterns to enhance the appearance and provide decorative effects. Exemplarily, the cover plate 70 is primarily composed of tempered glass and ink. Furthermore, the cover plate 70 includes at least one second opening 71. Exemplarily, the number of second openings 71 is the same as the number of light sensors 30, and the positions of the second openings 71 and the light sensors 30 correspond one-to-one. The second openings 71 are located on the side of the corresponding light sensor 30 away from the array substrate 20. In other words, ambient light must first pass through the second openings 71 before it can reach the corresponding light sensor 30. Exemplarily, the second openings 71 in the cover plate 70 can be understood as ink-recessed areas. Furthermore, if the cover plate 70 is located on the side of the color filter substrate 10 away from the array substrate 20, ambient light must pass through the second openings 71 and then the first openings 11 in sequence before it can reach the corresponding light sensor 30. And one light sensor 30 corresponds to one second opening 71 , one first opening 11 and one transmittance adjustment structure 50 .

[0064] On this basis, to ensure that ambient light can reach the light sensor 30, the positions of the second opening 71, the first opening 11, the transmittance adjustment structure 50, and the corresponding light sensor 30 need to be adjusted so that the orthographic projections of the second opening 71, the first opening 11, the transmittance adjustment structure 50, and the corresponding light sensor 30 on the surface of the array substrate 20 at least partially overlap. That is, the orthographic projections of the second opening 71, the first opening 11, the transmittance adjustment structure 50, and the corresponding light sensor 30 on the surface of the array substrate 20 exist in an overlapping area. In addition, this embodiment is illustrated and described using only one light sensor 30, one second opening 71, one first opening 11, and one transmittance adjustment structure 50 as an example. The number and specific positions of the light sensors 30, the second opening 71, the first opening 11, and the transmittance adjustment structure 50 are for illustrative purposes only and are not intended to be limiting.

[0065] In another specific embodiment, optionally, Figure 7 is a schematic diagram of a cross-sectional structure of another display panel provided by an embodiment of the present invention, such as Figure 7As shown, the display panel also includes a cover plate 70, which is located on the side of the color filter substrate 10 away from the array substrate 20; the transmittance adjustment structure 50 includes an electrochromic layer 56, a first electrode layer 52 and a second electrode layer 53; the first electrode layer 52 is located on the side of the cover plate 70 close to the corresponding light sensor 30, and the second electrode layer 53 is located on the side of the color filter substrate 10 close to the corresponding light sensor 30; the electrochromic layer 56 is located on the side of the second electrode layer 53 away from the color filter substrate 10.

[0066] Specifically, the transmittance adjustment structure 50 corresponds to the light sensor 30 in a one-to-one relationship. The transmittance adjustment structure 50 includes an electrochromic layer 56, a first electrode layer 52, and a second electrode layer 53. That is, one light sensor 30 corresponds to one electrochromic layer 56, one first electrode layer 52, and one second electrode layer 53. For example, the electrochromic layer 56 includes a plurality of electrochromic particles or ions. For example, the electrochromic layer 56 can be made of an inorganic or organic material such as tungsten oxide, iridium oxide, or polyaniline. For example, the first electrode layer 52 and the second electrode layer 53 can be made of indium tin oxide or other materials. The first electrode layer 52 can be set as the cathode, and the second electrode layer 53 can be set as the anode. Of course, the cathode and anode of the first electrode layer 52 and the second electrode layer 53 can also be interchanged. For example, the first electrode layer 52 and the second electrode layer 53 can be transparent film layers. It can be understood that the electrochromic layer 56, the first electrode layer 52 and the second electrode layer 53 in this embodiment are not arranged in a whole layer, which is conducive to accurately adjusting the transmittance of the transmittance adjustment structure 50 corresponding to the light sensor 30 to avoid crosstalk or interference between them.

[0067] The display panel also includes a cover plate 70. On the one hand, the cover plate 70 can protect the liquid crystal display module below and prevent the ingress of external oxygen or dust. On the other hand, the cover plate 70 can be silk-screened with different colors or patterns to beautify the appearance and decoration. For example, the cover plate 70 is mainly composed of tempered glass and ink. The cover plate 70 is located on the side of the color filter substrate 10 away from the array substrate 20, and the surface of the cover plate 70 on the side close to the color filter substrate 10 is easy to form relevant circuits or electrode structures. The surface of the color filter substrate 10 on the side close to the array substrate 20 is also easy to form relevant circuits or electrode structures. Therefore, for any transmittance adjustment structure 50, the first electrode layer 52 can be set on the side of the cover plate 70 close to the corresponding light sensor 30, and the second electrode layer 53 can be set on the side of the color filter substrate 10 close to the corresponding light sensor 30. It can be understood that the first electrode layer 52 is located on one side of the cover plate 70 and the second electrode layer 53 is located on one side of the color filter substrate 10. In addition, the electrochromic layer 56 is located on the side of the second electrode layer 53 away from the color filter substrate 10, that is, the electrochromic layer 56 is located between the color filter substrate 10 and the liquid crystal filling layer 40. At this time, the liquid crystal molecules in the liquid crystal filling layer 40 will not undergo angular deflection, and the liquid crystal filling layer 40 will not be analyzed and described here.

[0068] An electric field is formed between the first electrode layer 52 and the second electrode layer 53 in the transmittance-adjusting structure 50. Under the influence of this electric field, the color of the electrochromic layer 56 can change, thereby changing its transmittance to ambient light. This allows the transmittance of the entire transmittance-adjusting structure 50 to be adjustable. To effectively improve the accuracy of the light sensor 30's detection of ambient light and color temperature, the magnitude or polarity of the electric field formed between the first electrode layer 52 and the second electrode layer 53 can be adjusted to adjust the color of the electrochromic layer 56, thereby altering the amount of light energy incident on the corresponding light sensor 30. For example, the color of the electrochromic layer 56 can be adjusted to black or a darker color. This significantly attenuates the light energy incident on the light sensor 30, effectively reducing the reflection of ambient light by the color filter substrate 10. This allows the first opening 11 on the color filter substrate 10 to have a color similar to that of nearby unopened areas, effectively enhancing the display panel's all-black display effect. For example, the color of the electrochromic layer 56 itself can be adjusted to become transparent or light-colored, so that the attenuation of the light energy irradiated on the light sensor 30 is smaller, so that the light sensor 30 receives more light, which is beneficial to improving the light sensor 30's detection accuracy of the light sensitivity and color temperature of the ambient light.

[0069] It should also be noted that the first electrode layer 52 is located on the side of the cover plate 70 close to the corresponding light sensor 30. In fact, the thickness of the first electrode layer 52 is relatively small, and the cover plate 70 and the first polarizer 61 can be understood as a contact film relationship. Figure 7 The figure only shows the magnified positional relationship between the first electrode layer 52 and the cover plate 70. In addition, the second electrode layer 53 is located on the side of the color filter substrate 10 close to the corresponding light sensor 30, and the electrochromic layer 56 is located on the side of the second electrode layer 53 away from the color filter substrate 10. In fact, the thickness of the second electrode layer 53 and the electrochromic layer 56 are relatively small. The color filter substrate 10 and the liquid crystal alignment layer 63 can be understood as a contact film relationship. Figure 7 The figure only shows the positional relationship between the second electrode layer 53 , the electrochromic layer 56 and the color filter substrate 10 in an enlarged manner.

[0070] The working principle of the electrochromic layer 56, the first electrode layer 52 and the second electrode layer 53 is described in detail below. Figure 7 The first electrode layer 52 and the second electrode layer 53 are configured to: apply a third preset electric field to the electrochromic layer 56 when the corresponding light sensor 30 is in the working stage; apply a fourth preset electric field to the electrochromic layer 56 when the corresponding light sensor 30 is in the non-working stage; the electrochromic layer 56 is configured to: have a first transmittance under the third preset electric field; and have a second transmittance under the fourth preset electric field; wherein the first transmittance is greater than the second transmittance.

[0071] The light sensor 30 can be in an operating state or a non-operating state. For example, the specific state of the light sensor 30 can be determined by the relevant control signals and feedback signals within the display panel. The third preset electric field and the fourth preset electric field have different polarities or magnitudes, which can be selected based on actual needs. For example, the third preset electric field can be a positive electric field, and the fourth preset electric field can be a negative electric field or a zero electric field. The first transmittance and the second transmittance correspond to different changes in the color of the electrochromic layer 56. The first transmittance means that the electrochromic layer 56 can transmit more ambient light after the color change, while the second transmittance means that the electrochromic layer 56 can transmit less ambient light after the color change.

[0072] It is understood that the light sensor 30 can be in an operating state or a non-operating state. To reduce energy loss, the light sensor 30 does not need to be kept on all the time. For example, when the corresponding light sensor 30 is in the operating state, the first electrode layer 52 and the second electrode layer 53 can apply a third preset electric field to the electrochromic layer 56. For example, the third preset electric field can be appropriately selected based on the subsequent desired transmittance. Under the third preset electric field, the electrochromic particles or ions in the electrochromic layer 56 can move and assume a first color (for example, transparent or light-colored), thereby adjusting the transmittance of incident ambient light. This means that the electrochromic layer 56 has a first transmittance. In this case, the first electrode layer 52 and the second electrode layer 53 can be transparent film layers, and the transmittance of the transmittance adjustment structure 50 as a whole is adjusted to be greater. This allows external ambient light to pass through the first opening 11 and the electrochromic layer 56 in sequence, irradiating the corresponding light sensor 30. And because the overall transmittance of the transmittance adjustment structure 50 is relatively large at this time, for example, the electrochromic layer 56 can transmit the incident ambient light, and the electrochromic layer 56 can transmit more ambient light and transmit it to the corresponding light sensor 30. The attenuation of the light energy irradiated on the light sensor 30 is relatively small, and the light sensitivity of the light sensor 30 meets the requirements for the detection accuracy of the light sensitivity and color temperature of the ambient light. The light sensor 30 has a high detection accuracy for the light sensitivity and color temperature of the ambient light.

[0073] For example, when the corresponding photosensor 30 is in a non-operating state, the first electrode layer 52 and the second electrode layer 53 can apply a fourth predetermined electric field to the electrochromic layer 56. For example, the fourth predetermined electric field can be appropriately selected based on the subsequent desired transmittance. Under the fourth predetermined electric field, the electrochromic particles or ions in the electrochromic layer 56 can move and exhibit a second color (for example, black or a dark color), thereby adjusting the transmittance of incident ambient light. This means that the electrochromic layer 56 has a second transmittance. In this case, the first electrode layer 52 and the second electrode layer 53 can be transparent film layers, and the transmittance of the transmittance-adjusting structure 50 as a whole is adjusted to be lower. Exemplarily, the electrochromic layer 56 can reflect the incident ambient light, and the electrochromic layer 56 can reflect more ambient light into the external environment, effectively preventing the external ambient light from irradiating the light sensor 30. The transmittance adjustment structure 50 as a whole can reflect more ambient light, and the attenuation of the light energy irradiating the light sensor 30 is large, which effectively reduces the reflection of the ambient light by the color film substrate 10, so that the first opening 11 on the color film substrate 10 is similar in color to the nearby unopened area, effectively improving the integrated black display effect of the display panel when the screen is turned off. In addition, the light energy irradiating the light sensor 30 is small, which can also effectively prevent the light sensor 30 from being mistakenly turned on due to interference from external ambient light. At this time, there is no need for the light sensor 30 to detect the light sensitivity and color temperature of the ambient light.

[0074] In another specific embodiment, optionally, Figure 8 is a schematic diagram of a cross-sectional structure of another display panel provided by an embodiment of the present invention, such as Figure 8 As shown, the display panel also includes a cover plate 70, which is located on the side of the color filter substrate 10 away from the array substrate 20; the transmittance adjustment structure 50 includes an electrochromic layer 56, a first electrode layer 52 and a second electrode layer 53; the first electrode layer 52 is located on the side of the cover plate 70 close to the corresponding light sensor 30, and the second electrode layer 53 is located on the side of the color filter substrate 10 close to the corresponding light sensor 30; the electrochromic layer 56 is located on the side of the first electrode layer 52 away from the cover plate 70.

[0075] Specifically, Figure 8 and Figure 7 In contrast, only the position of the electrochromic layer 56 is adjusted. That is, Figure 8 The electrochromic layer 56 is shown as being located on the side of the first electrode layer 52 away from the cover plate 70, that is, the electrochromic layer 56 is located between the cover plate 70 and the color filter substrate 10. It should also be noted that the first electrode layer 52 is located on the side of the cover plate 70 close to the corresponding light sensor 30, and the electrochromic layer 56 is located on the side of the first electrode layer 52 away from the cover plate 70. In practice, the thickness of the first electrode layer 52 and the electrochromic layer 56 are relatively small, and the cover plate 70 and the first polarizer 61 can be understood as being in a contact relationship between the film layers. Figure 8 The figure only shows the magnified positional relationship between the first electrode layer 52, the electrochromic layer 56, and the cover plate 70. In addition, the second electrode layer 53 is located on the side of the color filter substrate 10 close to the corresponding light sensor 30. In fact, the thickness of the second electrode layer 53 is relatively small. The color filter substrate 10 and the liquid crystal alignment layer 63 can be understood as a contact film relationship. Figure 8 The figure only shows the positional relationship between the second electrode layer 53 and the color filter substrate 10 in an enlarged manner.

[0076] Exemplarily, when the corresponding light sensor 30 is in the working stage, the first electrode layer 52 and the second electrode layer 53 can apply a third preset electric field to the electrochromic layer 56, so that the electrochromic particles or ions in the electrochromic layer 56 can move in a first color (exemplarily, transparent or light color), and the first opening 11 of the color film substrate 10 can be in a light-transmitting state. Further, the light sensor 30 starts to work, and the electrochromic layer 56 will not affect the transmission of external ambient light and reach the corresponding light sensor 30. When the corresponding light sensor 30 is in a non-working stage, the first electrode layer 52 and the second electrode layer 53 can apply a fourth preset electric field to the electrochromic layer 56, so that the electrochromic particles or ions in the electrochromic layer 56 can move in a second color (exemplarily, black or dark). The electrochromic layer 56 can absorb external ambient light and prevent the external ambient light from reaching the corresponding light sensor 30. The first opening 11 of the color filter substrate 10 can be in a black state, thereby preventing the reflection of the color filter 12 from being enhanced when the external ambient light is irradiated on the corresponding light sensor 30, further resulting in a higher dark state reflectivity of the light-sensitive area of ​​the display panel, thereby causing the reflectivity of the area corresponding to the first opening 11 of the color filter substrate 10 to be inconsistent with that of other areas, resulting in a worsened integrated black effect. In this way, this embodiment can improve the integrated black effect of the display panel with the light sensor 30. The detailed working principles of the electrochromic layer 56, the first electrode layer 52 and the second electrode layer 53 can be referred to the above embodiment, and this embodiment will not be repeated here.

[0077] In another specific embodiment, optionally, Figure 9 is a schematic diagram of a cross-sectional structure of another display panel provided by an embodiment of the present invention, such as Figure 9 As shown, the display panel also includes a cover plate 70, which is located on the side of the color filter substrate 10 away from the array substrate 20; the transmittance adjustment structure 50 includes an electrochromic layer 56, a first electrode layer 52 and a second electrode layer 53; the first electrode layer 52 is located on the side of the color filter substrate 10 close to the corresponding light sensor 30; the electrochromic layer 56 is located on the side of the first electrode layer 52 close to the corresponding light sensor 30, and the second electrode layer 53 is located on the side of the electrochromic layer 56 close to the corresponding light sensor 30.

[0078] Specifically, Figure 9 and Figure 7 In contrast, only the positions of the first electrode layer 52 and the second electrode layer 53 are adjusted. That is, Figure 9The first electrode layer 52 and the second electrode layer 53 are shown as being located on opposite sides of the electrochromic layer 56. For example, the first electrode layer 52 is located on the side of the electrochromic layer 56 that is close to the color filter substrate 10, and the second electrode layer 53 is located on the side of the electrochromic layer 56 that is close to the corresponding light sensor 30. Of course, the positions of the first electrode layer 52 and the second electrode layer 53 can also be interchanged. That is, the entire transmittance adjustment structure 50 is located between the color filter substrate 10 and the liquid crystal filling layer 40. It should also be noted that the first electrode layer 52 is located on the side of the color filter substrate 10 that is close to the corresponding light sensor 30, the electrochromic layer 56 is located on the side of the first electrode layer 52 that is close to the corresponding light sensor 30, and the second electrode layer 53 is located on the side of the electrochromic layer 56 that is close to the corresponding light sensor 30. In practice, the combined thickness of the first electrode layer 52, the electrochromic layer 56, and the second electrode layer 53 is relatively small. The color filter substrate 10 and the liquid crystal alignment layer 63 can be understood as being in a contact relationship between the film layers. Figure 9 The figure only shows the positional relationship among the first electrode layer 52 , the electrochromic layer 56 , the second electrode layer 53 and the color filter substrate 10 in an enlarged manner.

[0079] Exemplarily, when the corresponding light sensor 30 is in the working stage, the first electrode layer 52 and the second electrode layer 53 can apply a third preset electric field to the electrochromic layer 56, so that the electrochromic particles or ions in the electrochromic layer 56 can move in a first color (exemplarily, transparent or light color), and the first opening 11 of the color film substrate 10 can be in a light-transmitting state. Further, the light sensor 30 starts to work, and the electrochromic layer 56 will not affect the transmission of external ambient light and reach the corresponding light sensor 30. When the corresponding light sensor 30 is in a non-working stage, the first electrode layer 52 and the second electrode layer 53 can apply a fourth preset electric field to the electrochromic layer 56, so that the electrochromic particles or ions in the electrochromic layer 56 can move in a second color (exemplarily, black or dark). The electrochromic layer 56 can absorb external ambient light and prevent the external ambient light from reaching the corresponding light sensor 30. The first opening 11 of the color filter substrate 10 can be in a black state, thereby preventing the reflection of the color filter 12 from being enhanced when the external ambient light is irradiated on the corresponding light sensor 30, further resulting in a higher dark state reflectivity of the light-sensitive area of ​​the display panel, thereby causing the reflectivity of the area corresponding to the first opening 11 of the color filter substrate 10 to be inconsistent with that of other areas, resulting in a worsened integrated black effect. In this way, this embodiment can improve the integrated black effect of the display panel with the light sensor 30. The detailed working principles of the electrochromic layer 56, the first electrode layer 52 and the second electrode layer 53 can be referred to the above embodiment, and this embodiment will not be repeated here.

[0080] In another specific embodiment, optionally, Figure 10is a schematic diagram of a cross-sectional structure of another display panel provided by an embodiment of the present invention, such as Figure 10 As shown, the display panel also includes a cover plate 70, which is located on the side of the color film substrate 10 away from the array substrate 20; the transmittance adjustment structure 50 includes an electrochromic layer 56, a first electrode layer 52 and a second electrode layer 53; the first electrode layer 52 is located on the side of the cover plate 70 close to the corresponding light sensor 30, the electrochromic layer 56 is located on the side of the first electrode layer 52 close to the corresponding light sensor 30, and the second electrode layer 53 is located on the side of the electrochromic layer 56 close to the corresponding light sensor 30.

[0081] Specifically, Figure 10 and Figure 8 In contrast, only the positions of the first electrode layer 52 and the second electrode layer 53 are adjusted. That is, Figure 10 The first electrode layer 52 and the second electrode layer 53 are shown as being located on opposite sides of the electrochromic layer 56. For example, the first electrode layer 52 is located on the surface of the electrochromic layer 56 near the cover plate 70, and the second electrode layer 53 is located on the surface of the electrochromic layer 56 near the corresponding light sensor 30. Of course, the positions of the first electrode layer 52 and the second electrode layer 53 can also be interchanged. That is, the entire transmittance adjustment structure 50 is located between the cover plate 70 and the color filter substrate 10. It should also be noted that the first electrode layer 52 is located on the side of the cover plate 70 near the corresponding light sensor 30, the electrochromic layer 56 is located on the side of the first electrode layer 52 near the corresponding light sensor 30, and the second electrode layer 53 is located on the side of the electrochromic layer 56 near the corresponding light sensor 30. In practice, the overall thickness of the first electrode layer 52, the electrochromic layer 56, and the second electrode layer 53 is relatively small. The cover plate 70 and the first polarizer 61 can be understood as being in a contacting film relationship. Figure 10 The figure only shows the positional relationship between the first electrode layer 52 , the electrochromic layer 56 , the second electrode layer 53 and the cover plate 70 in an enlarged manner.

[0082] Exemplarily, when the corresponding light sensor 30 is in the working stage, the first electrode layer 52 and the second electrode layer 53 can apply a third preset electric field to the electrochromic layer 56, so that the electrochromic particles or ions in the electrochromic layer 56 can move in a first color (exemplarily, transparent or light color), and the first opening 11 of the color film substrate 10 can be in a light-transmitting state. Further, the light sensor 30 starts to work, and the electrochromic layer 56 will not affect the transmission of external ambient light and reach the corresponding light sensor 30. When the corresponding light sensor 30 is in a non-working stage, the first electrode layer 52 and the second electrode layer 53 can apply a fourth preset electric field to the electrochromic layer 56, so that the electrochromic particles or ions in the electrochromic layer 56 can move in a second color (exemplarily, black or dark). The electrochromic layer 56 can absorb external ambient light and prevent the external ambient light from reaching the corresponding light sensor 30. The first opening 11 of the color filter substrate 10 can be in a black state, thereby preventing the reflection of the color filter 12 from being enhanced when the external ambient light is irradiated on the corresponding light sensor 30, further resulting in a higher dark state reflectivity of the light-sensitive area of ​​the display panel, thereby causing the reflectivity of the area corresponding to the first opening 11 of the color filter substrate 10 to be inconsistent with that of other areas, resulting in a worsened integrated black effect. In this way, this embodiment can improve the integrated black effect of the display panel with the light sensor 30. The detailed working principles of the electrochromic layer 56, the first electrode layer 52 and the second electrode layer 53 can be referred to the above embodiment, and this embodiment will not be repeated here.

[0083] Optionally, continue to refer to Figure 7-10 The display panel further includes a first polarizer 61 , which is located on a side of the color filter substrate 10 away from the array substrate 20 ; the first polarizer 61 does not overlap with the orthographic projection of the light sensor 30 on the surface of the array substrate 20 .

[0084] Specifically, for the light sensor 30, the electrochromic layer 56 is located along the path of ambient light reaching the light sensor 30. The placement of the electrochromic layer 56 can meet both light shielding and light transmission requirements. Therefore, this embodiment specifies that the first polarizer 61 and the orthographic projection of the light sensor 30 on the surface of the array substrate 20 do not overlap. That is, the first polarizer 61 does not need to shield the corresponding light sensor 30 from ambient light. Furthermore, removing the first polarizer 61 above the corresponding light sensor 30 can also provide a certain degree of light transmission. For example, when the corresponding light sensor 30 is in operation, ambient light does not need to pass through the first polarizer 61 to reach the corresponding light sensor 30, thereby improving the transmission of ambient light. Furthermore, since the electrochromic layer 56 regulates the transmittance of ambient light, the first polarizer 61 corresponding to the light sensor 30 can be retained. That is, the combination of the first polarizer 61 and the electrochromic layer 56 can further improve the integrated black effect of the display panel with the light sensor 30.

[0085] Optionally, continue to refer to Figure 7-10 , the display panel also includes a first polarizer 61 and a second polarizer 62. The first polarizer 61 is located on the side of the color filter substrate 10 away from the array substrate 20, and the second polarizer 62 is located on the side of the array substrate 20 away from the color filter substrate 10. For example, the first polarizer 61 can be understood as an upper polarizer, and the second polarizer 62 can be understood as a lower polarizer. It can be understood that in the display area AA, the first polarizer 61 and the second polarizer 62 can regulate the light of the backlight module to ensure the normal display of the display panel. For example, in the display area AA, the first polarizer 61 and the second polarizer 62 need to be set, while in the non-display area NA, the first polarizer 61 can be reasonably set according to the above needs, and the second polarizer 62 may not be set.

[0086] Optionally, continue to refer to Figure 7-10 The cover plate 70 includes at least one second opening 71, and the second opening 71 corresponds to the light sensor 30 one by one, and the second opening 71, the first opening 11, the transmittance adjustment structure 50 and the orthographic projection of the corresponding light sensor 30 on the surface of the array substrate 20 at least partially overlap.

[0087] Specifically, the cover plate 70 includes at least one second opening 71. Exemplarily, the number of the second openings 71 is the same as that of the light sensors 30, and the positions of the second openings 71 and the light sensors 30 correspond one-to-one. The second openings 71 are located on the side of the corresponding light sensor 30 away from the array substrate 20. That is, the external ambient light needs to pass through the second opening 71 before it can be irradiated onto the corresponding light sensor 30. Exemplarily, the second opening 71 in the cover plate 70 can be understood as an ink hollowing area. Furthermore, the cover plate 70 is located on the side of the color filter substrate 10 away from the array substrate 20, then the external ambient light needs to pass through the second opening 71 and the first opening 11 in sequence before it can be irradiated onto the corresponding light sensor 30. And one light sensor 30 corresponds to one second opening 71, one first opening 11 and one transmittance adjustment structure 50.

[0088] On this basis, to ensure that ambient light can reach the light sensor 30, the positions of the second opening 71, the first opening 11, the transmittance adjustment structure 50, and the corresponding light sensor 30 need to be adjusted so that the orthographic projections of the second opening 71, the first opening 11, the transmittance adjustment structure 50, and the corresponding light sensor 30 on the surface of the array substrate 20 at least partially overlap. That is, the orthographic projections of the second opening 71, the first opening 11, the transmittance adjustment structure 50, and the corresponding light sensor 30 on the surface of the array substrate 20 exist in an overlapping area. In addition, this embodiment is illustrated and described using only one light sensor 30, one second opening 71, one first opening 11, and one transmittance adjustment structure 50 as an example. The number and specific positions of the light sensors 30, the second opening 71, the first opening 11, and the transmittance adjustment structure 50 are for illustrative purposes only and are not intended to be limiting.

[0089] In addition, in another specific embodiment, the transmittance adjustment structure 50 can combine the transmittance adjustment scheme corresponding to the liquid crystal layer 51 with the transmittance adjustment scheme of the electrochromic layer 56. Under the electric field control of the first electrode layer 52 and the second electrode layer 53, the liquid crystal layer 51 can adjust the transmittance of the external ambient light according to the working stage or non-working stage of the corresponding light sensor 30. At the same time, the electrochromic layer 56 can also adjust the transmittance of the external ambient light according to the working stage or non-working stage of the corresponding light sensor 30, which can further improve the integrated black effect of the display panel with the light sensor 30 and ensure the normal operation and high detection accuracy of the light sensor 30.

[0090] Optionally, continue to refer to Figure 2The color film substrate 10 includes a color filter 12 and a black matrix 13. The color filter 12 includes color resists of at least two colors. The black matrix 13 is located between the color resists and is connected as a whole. The black matrix 13 includes at least one first opening 11. The orthographic projection of the light sensor 30 on the surface of the array substrate 20 is located within the orthographic projection of the corresponding first opening 11 on the surface of the array substrate 20, and the orthographic projection of the light sensor 30 on the surface of the array substrate 20 does not overlap with the orthographic projection of the color resists on the surface of the array substrate 20. The light sensor 30 is used to detect the light sensitivity of ambient light.

[0091] Specifically, the color filter substrate 10 includes at least one first opening 11, that is, in fact, the first opening 11 is formed in the black matrix 13. Exemplarily, the first opening 11 can be understood as a hollowed-out area of ​​the black matrix 13. The orthographic projection of the light sensor 30 on the surface of the array substrate 20 is located within the orthographic projection of the corresponding first opening 11 on the surface of the array substrate 20, that is, the external ambient light needs to pass through the first opening 11 before it can be irradiated onto the corresponding light sensor 30. In addition, the orthographic projection of the light sensor 30 on the surface of the array substrate 20 does not overlap with the orthographic projection of the color resist on the surface of the array substrate 20, that is, the color resists in the color filter 12 will not be filled in the first opening 11, and will not block the irradiation of the external ambient light. In this way, the light sensor 30 can detect the light sensitivity of the ambient light (which can be understood as the light intensity, brightness and visibility of the ambient light, ranging from bright to dark). For example, the light sensor 30 generally refers to a device that can sensitively sense light energy from ultraviolet light to infrared light and convert the light energy into an electrical signal. The light sensor 30 can be composed of a photosensor. For example, the light sensor 30 can include a photosensitive element, and the resistance value of the photosensitive element can change accordingly with the light sensitivity of the sensed ambient light. In this way, the light sensitivity of the ambient light can be obtained by the change in the resistance value of the photosensitive element caused by the ambient light of different light sensitivity, thereby realizing the reading of the ambient light.

[0092] Optionally, Figure 11 is a schematic diagram of a cross-sectional structure of another display panel provided by an embodiment of the present invention, such as Figure 11 As shown, the color film substrate 10 includes a color filter 12 and a black matrix 13. The color filter 12 includes color resists of at least two colors. The black matrix 13 is located between the color resists and is connected as a whole. The black matrix 13 includes at least one first opening 11. The orthographic projection of the light sensor 30 on the surface of the array substrate 20 is located within the orthographic projection of the corresponding first opening 11 on the surface of the array substrate 20, and at least part of the color filter 12 is filled in the first opening 11. The light sensor 30 is used to detect the color temperature of the ambient light.

[0093] Specifically, the color filter substrate 10 includes at least one first opening 11. In other words, the first opening 11 is actually formed in the black matrix 13. For example, the first opening 11 can be understood as a hollowed-out area of ​​the black matrix 13. The orthographic projection of the light sensor 30 on the surface of the array substrate 20 is located within the orthographic projection of the corresponding first opening 11 on the surface of the array substrate 20. In other words, ambient light must pass through the first opening 11 before it can reach the corresponding light sensor 30. Furthermore, at least a portion of the color resist in the color filter 12 can be filled in the first opening 11. In other words, the orthographic projection of the light sensor 30 on the surface of the array substrate 20 overlaps with the orthographic projection of at least a portion of the color resist on the surface of the array substrate 20. On the propagation path of ambient light to the corresponding light sensor 30, it must pass through the color resist in the corresponding color filter 12. The color resist in the color filter 12 can filter the color ratio of the ambient light, so that the corresponding light sensor 30 receives light energy corresponding to the color resist. Thus, the light sensor 30 can detect the color temperature of the ambient light (which can be understood as the hue of the ambient light, ranging from warm red to cool blue). For example, the light sensor 30 can measure the color by distinguishing the distribution of different wavelengths in the ambient light and obtain the color temperature of the ambient light.

[0094] In addition, continue to refer to Figure 11 The color filter 12 includes color resistors of at least two colors. For example, the color filter 12 may include red color resistors, green color resistors, and blue color resistors. For example, the red color resistor can transmit the red light signal in the external ambient light to the corresponding light sensor 30, the green color resistor can transmit the green light signal in the external ambient light to the corresponding light sensor 30, and the blue color resistor can transmit the blue light signal in the external ambient light to the corresponding light sensor 30. In this way, the signal requirements of the light sensor 30 for color temperature detection are met. In this process, the external ambient light can pass through the color filter 12, but cannot pass through the black matrix 13. And, continue to refer to Figure 2 The color filter 12 includes at least two color resists. For example, the color filter 12 may include red, green, and blue color resists. For example, in the display area AA, the red color resist can convert the light emitted by the backlight module into a red light signal, the green color resist can convert the light emitted by the backlight module into a green light signal, and the blue color resist can convert the light emitted by the backlight module into a blue light signal. In this way, the display panel can display color. During this process, the light emitted by the backlight module can pass through the color filter 12 but cannot pass through the black matrix 13. This can also effectively prevent color interference or crosstalk between adjacent color resists, further ensuring the normal display of the display panel.

[0095] Optionally, continue to refer to Figure 2-Figure 11One of the first electrode layer 52 and the second electrode layer 53 is a pixel electrode layer, and the other is a common electrode layer.

[0096] Specifically, in this embodiment, the first electrode layer 52 and the second electrode layer 53 can be any combination of pixel electrodes and common electrodes, and the electrode types of the first electrode layer 52 and the second electrode layer 53 can be selected according to their own positions and the corresponding preparation processes. Exemplarily, when the first electrode layer 52 is a pixel electrode layer, the second electrode layer 53 corresponds to a common electrode layer. At this time, the first electrode layer 52 can be made using the same process as the corresponding pixel electrode layer in the display area AA, and the second electrode layer 53 can be made using the same process as the corresponding common electrode layer in the display area AA, thereby simplifying the preparation process and improving preparation efficiency. Alternatively, exemplarily, when the first electrode layer 52 is a common electrode layer, the second electrode layer 53 corresponds to a pixel electrode layer. At this time, the first electrode layer 52 can be made using the same process as the corresponding common electrode layer in the display area AA, and the second electrode layer 53 can be made using the same process as the corresponding pixel electrode layer in the display area AA, thereby simplifying the preparation process and improving preparation efficiency.

[0097] On the basis of the above technical solution, this embodiment further describes the specific structure of the pixel electrode layer. Please refer to the following embodiment.

[0098] In a specific embodiment, optionally, Figure 12 is a structural diagram of a pixel circuit layer provided by an embodiment of the present invention, such as Figure 12 As shown, the pixel electrode layer includes a dual-domain electrode structure 81.

[0099] In another embodiment, optionally, Figure 13 is a schematic structural diagram of another pixel circuit layer provided by an embodiment of the present invention, such as Figure 2-Figure 11 、 Figure 13 As shown, the pixel electrode layer includes at least two dual-domain electrode structures 81. When there are two or more dual-domain electrode structures 81, the orthographic projections of the dual-domain electrode structures 81 on the surface of the array substrate 20 do not overlap. For example, the at least two dual-domain electrode structures 81 can be arranged in an array, i.e., arranged in multiple rows and columns. The number of dual-domain electrode structures 81 can be selected based on actual electric field generation requirements. The sizes of the dual-domain electrode structures 81 can be the same or different, and this is not limited in this embodiment.

[0100] Regarding the specific structure of the dual-domain electrode structure 81, further reference is made to Figure 12 and Figure 13The dual-domain electrode structure 81 includes a first domain portion 82, a second domain portion 83, a first connecting portion 84 and a second connecting portion 85; the first domain portion 82 includes at least one first strip-shaped segment 821 extending along the first direction X, and the second domain portion 83 includes at least one second strip-shaped segment 831 extending along the second direction Y, wherein the first direction X intersects with the second direction Y; the number of the first strip-shaped segments 821 and the second strip-shaped segments 831 is the same, one end of the first strip-shaped segment 821 is connected to one end of the second strip-shaped segment 831 in a one-to-one correspondence, the other end of the first strip-shaped segment 821 is connected to the first connecting portion 84, and the other end of the second strip-shaped segment 831 is connected to the second connecting portion 85.

[0101] Specifically, Figure 12 and Figure 13 The dual-domain electrode structure 81 shown can be understood as a 2D design. The dual-domain electrode structure 81 includes a first domain portion 82, a second domain portion 83, a first connecting portion 84, and a second connecting portion 85. The first domain portion 82 includes at least one first strip-shaped segment 821 extending along a first direction X. Each first strip-shaped segment 821 can be parallel to each other and spaced apart, with gaps between adjacent first strip-shaped segments 821. The second domain portion 83 includes at least one second strip-shaped segment 831 extending along a second direction Y. Each second strip-shaped segment 831 can be parallel to each other and spaced apart, with gaps between adjacent second strip-shaped segments 831. It should also be noted that, for each first strip-shaped portion 821 extending along the first direction X in the first domain portion 82, at least a portion of the structure in the first strip-shaped portion 821 extends along the first direction X. Of course, there may also be a portion of the structure in the first strip-shaped portion 821 extending approximately in the first direction X, and, for each second strip-shaped portion 831 extending along the second direction Y in the second domain portion 83, at least a portion of the structure in the second strip-shaped portion 831 extends along the second direction Y. Of course, there may also be a portion of the structure in the second strip-shaped portion 831 extending approximately in the second direction Y.

[0102] The number of first strip-shaped segments 821 and second strip-shaped segments 831 is the same, and the first strip-shaped segments 821 and the second strip-shaped segments 831 are connected in a one-to-one correspondence. That is, one end of a first strip-shaped segment 821 is connected to one end of a corresponding second strip-shaped segment 831. Furthermore, the other end of a first strip-shaped segment 821 is connected to the first connecting portion 84, and the other end of a second strip-shaped segment 831 is connected to the second connecting portion 85. That is, the first connecting portion 84 can be connected to one end of each first strip-shaped segment 821, and the second connecting portion 85 can be connected to one end of each second strip-shaped segment 831.

[0103] In another specific embodiment, optionally, Figure 14is a structural diagram of another pixel circuit layer provided by an embodiment of the present invention, such as Figure 14 As shown, the pixel electrode layer includes a single-domain electrode structure 86 .

[0104] In another specific embodiment, optionally, Figure 15 is a structural diagram of another pixel circuit layer provided by an embodiment of the present invention, such as Figure 2-Figure 11 、 Figure 15 As shown, the pixel electrode layer includes at least two single-domain electrode structures 86. When there are two or more single-domain electrode structures 86, the orthographic projections of the single-domain electrode structures 86 on the surface of the array substrate 20 do not overlap. For example, the at least two single-domain electrode structures 86 can be arranged in an array, i.e., arranged in multiple rows and columns. The number of single-domain electrode structures 86 can be selected based on the actual electric field generation requirements. The sizes of the single-domain electrode structures 86 can be the same or different, and this is not limited in this embodiment.

[0105] Regarding the specific structure of the single-domain electrode structure 86, further reference is made to Figure 14 and Figure 15 The single-domain electrode structure 86 includes a third domain portion 87 and a third connecting portion 88; the third domain portion 87 includes at least one third strip-shaped portion 871 extending along the third direction Z, one end of each third strip-shaped portion 871 is connected to the third connecting portion 88, and the other end of the third strip-shaped portion 871 is suspended; the third strip-shaped portion 871 is curved.

[0106] Specifically, Figure 14 and Figure 15 The structure of the single-domain electrode structure 86 shown can be understood as a P2D design. The single-domain electrode structure 86 includes a third domain portion 87 and a third connecting portion 88, wherein the third domain portion 87 includes at least one third strip-shaped segment 871 extending along the third direction Z. Each third strip-shaped segment 871 can be parallel to each other and spaced apart, with a slit between adjacent third strip-shaped segments 871. It should also be noted that each third strip-shaped segment 871 in the third domain portion 87 extending along the third direction Z has at least a portion of the structure extending along the third direction Z. Of course, a portion of the structure of the third strip-shaped segment 871 can also extend approximately along the third direction Z. One end of each third strip-shaped segment 871 is connected to the third connecting portion 88, that is, the third connecting portion 88 can be connected to one end of each third strip-shaped segment 871. The other end of the third strip-shaped segment 871 is suspended, and no additional corresponding connecting portion is required. Figure 14 and Figure 15It can be clearly seen that the third strip-shaped segment 871 is curved. For example, the third strip-shaped segment 871 may have a curved structure at the top (the suspended end). The P2D design can also further improve the transmittance of ambient light in the pixel electrode layer, avoiding the problem of low detection accuracy of ambient light and color temperature by the corresponding light sensor 30 due to the structural design of the pixel electrode layer.

[0107] also, Figure 16 is a structural diagram of another pixel circuit layer provided by an embodiment of the present invention. Figure 17 is a structural diagram of another pixel circuit layer provided by an embodiment of the present invention. Figure 16 The pixel electrode layer shown includes a single domain electrode structure 86, Figure 17 The pixel electrode layer shown includes at least two single-domain electrode structures 86. Regarding the specific structure of the single-domain electrode structure 86, further reference is made to Figure 16 and Figure 17 The single-domain electrode structure 86 includes a third domain portion 87 and a third connecting portion 88; the third domain portion 87 includes at least one third strip-shaped portion 871 extending along the third direction Z, one end of each third strip-shaped portion 871 is connected to the third connecting portion 88, and the other end of the third strip-shaped portion 871 is suspended; the third strip-shaped portion 871 is a straightened shape.

[0108] Specifically, Figure 16 and Figure 14 compared to, Figure 17 and Figure 15 In comparison, it can be clearly found Figure 16 and Figure 17 The third strip-shaped division 871 is in a straightened shape. For example, the third strip-shaped division 871 can be a straightened structure at the top (the suspended end), which can further improve the transmittance of external ambient light in the pixel electrode layer, and avoid the problem of low detection accuracy of the corresponding light sensor 30 for the light sensitivity and color temperature of the ambient light due to the structural design of the pixel electrode layer.

[0109] Optionally, Figure 18 is a schematic diagram of a planar structure of a display panel provided by an embodiment of the present invention, such as Figure 2-Figure 11 、 Figure 18 As shown, the display panel includes a display area AA and a non-display area NA, and the non-display area NA is connected to the display area AA; the light sensor 30 is located in the non-display area NA.

[0110] Specifically, the display area AA is an area for displaying images, and the non-display area NA is a frame area. For example, the non-display area NA can be set around the display area AA. Setting the light sensor 30 in the non-display area NA is conducive to improving the pixel density of the display area AA and improving the display effect. For example, the display panel can be a vehicle-mounted display panel, and the light sensor 30 can be set in the lower frame area corresponding to the non-display area NA of the vehicle-mounted display panel. The position setting of the light sensor 30 corresponding to other types of display panels can be selected according to the space of the non-display area NA and actual needs.

[0111] In addition, illustratively, the display panel further includes a color filter substrate 10, a base substrate 20 and a cover plate 70, wherein the color filter substrate 10 includes at least one first opening 11, and the cover plate 70 includes at least one second opening 71. Figure 18 It can be clearly seen that the orthographic projection of the optical sensor 30 on the base substrate 20 is located within the orthographic projection of the corresponding first opening 11 on the base substrate 20, and the orthographic projection of the first opening 11 on the base substrate 20 is located within the orthographic projection of the corresponding second opening 71 on the base substrate 20. For example, the orthographic projection of the second opening 71 on the base substrate 20 is larger than the orthographic projection of the corresponding first opening 11 on the base substrate 20, and the orthographic projection of the first opening 11 on the base substrate 20 is larger than the orthographic projection of the corresponding optical sensor 30 on the base substrate 20. Figure 18 Only the orthographic projections of the first opening 11 , the second opening 71 and the optical sensor 30 on the base substrate 20 are drawn and described without limitation, and Figure 18 The transmittance adjustment structure 50 is not illustrated in the figure. The relationship between the orthographic projection of the transmittance adjustment structure 50 on the base substrate 20 and the orthographic projection of the corresponding light sensor 30 on the base substrate 20 can refer to the above embodiments.

[0112] Optionally, continue to refer to Figure 2-Figure 11 The display panel further includes a packaging frame 64 ; the packaging frame 64 is located in the non-display area NA, the packaging frame 64 is located between the color filter substrate 10 and the array substrate 20 , and the packaging frame 64 is located on a side of the light sensor 30 away from the display area AA.

[0113] Specifically, the packaging frame 64 can seal, encapsulate or pot the corresponding light sensor 30, liquid crystal filling layer 40, etc. The packaging frame 64 can play the role of waterproofing, moisture-proofing, shockproofing, dustproofing, heat dissipation, and confidentiality.

[0114] Based on the same inventive concept, an embodiment of the present invention further provides a display device. Figure 19 is a structural diagram of a display device provided by an embodiment of the present invention, such as Figure 19As shown, the display device includes a backlight module and a display panel 100 as provided in any one of the embodiments of the present invention. Exemplarily, the display panel 100 has a relative light-emitting surface and a backlight surface, wherein the light-emitting surface is a side surface of the display panel 100 away from the backlight module, and the backlight surface is a side surface of the display panel 100 close to the backlight module. Therefore, the display device provided by the embodiment of the present invention has the corresponding beneficial effects of the display panel 1 provided by the embodiment of the present invention, which will not be repeated here. Exemplarily, the display device can be an electronic device such as a mobile phone, a computer, a smart wearable device (for example, a smart watch), and a car-mounted display device, which is not limited by the embodiment of the present invention.

[0115] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, combinations, and substitutions are possible for those skilled in the art without departing from the scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display panel, characterized in that: It includes a color filter substrate, an array substrate, at least one light sensor and at least one light transmittance adjustment structure; The color filter substrate and the array substrate are opposite to each other, the light sensor is located on a surface of the array substrate close to the color filter substrate, and the transmittance adjustment structure corresponds to the light sensor one-to-one and is located on a side of the light sensor away from the array substrate; The color filter substrate includes at least one first opening, which corresponds to the light sensor one by one, and the first opening, the transmittance adjustment structure and the orthographic projection of the corresponding light sensor on the surface of the array substrate at least partially overlap.

2. The display panel according to claim 1, wherein: The transmittance adjustment structure is configured as follows: When the corresponding light sensor is in a working stage, it has a first light transmittance; When the corresponding optical sensor is in a non-working stage, it has a second light transmittance; Wherein, the first light transmittance is greater than the second light transmittance.

3. The display panel according to claim 1, wherein: The transmittance adjustment structure includes a liquid crystal layer, a first electrode layer, a second electrode layer and an insulating layer; The liquid crystal layer is located between the array substrate and the color filter substrate, and the light sensor is located between the array substrate and the corresponding liquid crystal layer; The first electrode layer, the insulating layer and the second electrode layer are stacked in sequence to form a stacked structure; The stacked structure is located between the liquid crystal layer and the corresponding light sensor, or the stacked structure is located between the liquid crystal layer and the color filter substrate.

4. The display panel according to claim 1, wherein: The transmittance adjustment structure includes a liquid crystal layer, a first electrode layer and a second electrode layer; The first electrode layer is located on a side of the color filter substrate close to the corresponding light sensor, the second electrode layer is located on a side of the corresponding light sensor close to the color filter substrate, and the liquid crystal layer is located between the first electrode layer and the second electrode layer.

5. The display panel according to claim 3 or 4, characterized in that: The first electrode layer and the second electrode layer are configured as follows: When the corresponding light sensor is in a working stage, applying a first preset electric field to the liquid crystal layer; applying a second preset electric field to the liquid crystal layer when the corresponding light sensor is in a non-working stage; The liquid crystal layer is configured as follows: Under the first preset electric field, the liquid crystal molecules in the liquid crystal layer are in a first propagation path modulation state, so that the liquid crystal layer has a first light transmittance; Under the second preset electric field, the liquid crystal molecules in the liquid crystal layer are in a second propagation path modulation state, so that the liquid crystal layer has a second light transmittance; Wherein, the first light transmittance is greater than the second light transmittance.

6. The display panel according to claim 3 or 4, characterized in that: The display panel further includes a first polarizer, which is located on a side of the color filter substrate away from the array substrate; The orthographic projection of the light sensor on the surface of the array substrate is located within the orthographic projection of the first polarizer on the surface of the array substrate.

7. The display panel according to claim 3 or 4, characterized in that: The display panel further includes a cover plate, which is located on a side of the color filter substrate away from the array substrate; The cover plate includes at least one second opening, which corresponds to the light sensor one by one, and the second opening, the first opening, the transmittance adjustment structure and the orthographic projection of the corresponding light sensor on the surface of the array substrate at least partially overlap.

8. The display panel according to claim 1, wherein: The display panel further includes a cover plate, which is located on a side of the color filter substrate away from the array substrate; The transmittance adjustment structure includes an electrochromic layer, a first electrode layer and a second electrode layer; The first electrode layer is located on a side of the cover plate close to the corresponding light sensor, and the second electrode layer is located on a side of the color filter substrate close to the corresponding light sensor; The electrochromic layer is located on a side of the second electrode layer away from the color filter substrate, or the electrochromic layer is located on a side of the first electrode layer away from the cover plate.

9. The display panel according to claim 1, wherein: The display panel further includes a cover plate, which is located on a side of the color filter substrate away from the array substrate; The transmittance adjustment structure includes an electrochromic layer, a first electrode layer and a second electrode layer; The first electrode layer is located on a side of the cover plate close to the corresponding light sensor, or the first electrode layer is located on a side of the color filter substrate close to the corresponding light sensor; The electrochromic layer is located on a side of the first electrode layer close to the corresponding light sensor, and the second electrode layer is located on a side of the electrochromic layer close to the corresponding light sensor.

10. The display panel according to claim 8 or 9, characterized in that: The first electrode layer and the second electrode layer are configured as follows: applying a third preset electric field to the electrochromic layer when the corresponding light sensor is in a working stage; applying a fourth preset electric field to the electrochromic layer when the corresponding light sensor is in a non-working stage; The electrochromic layer is configured as follows: Under the third preset electric field, it has a first light transmittance; Under the fourth preset electric field, it has a second light transmittance; Wherein, the first light transmittance is greater than the second light transmittance.

11. The display panel according to claim 8 or 9, characterized in that: The display panel further includes a first polarizer, which is located on a side of the color filter substrate away from the array substrate; The first polarizer and the orthographic projection of the light sensor on the surface of the array substrate do not overlap.

12. The display panel according to claim 8 or 9, characterized in that: The cover plate includes at least one second opening, which corresponds to the light sensor one by one, and the second opening, the first opening, the transmittance adjustment structure and the orthographic projection of the corresponding light sensor on the surface of the array substrate at least partially overlap.

13. The display panel according to claim 1, wherein The color filter substrate includes a color filter and a black matrix, the color filter includes color resistors of at least two colors, and the black matrix is ​​located between the color resistors and is integrally connected; The black matrix includes at least one first opening, the orthographic projection of the light sensor on the surface of the array substrate is located within the orthographic projection of the corresponding first opening on the surface of the array substrate, and the orthographic projection of the light sensor on the surface of the array substrate does not overlap with the orthographic projection of the color resist on the surface of the array substrate; The light sensor is used to detect the light sensation of the ambient light.

14. The display panel according to claim 1, wherein The color filter substrate includes a color filter and a black matrix, the color filter includes color resistors of at least two colors, and the black matrix is ​​located between the color resistors and is integrally connected; The black matrix includes at least one first opening, the orthographic projection of the light sensor on the surface of the array substrate is located within the orthographic projection of the corresponding first opening on the surface of the array substrate, and at least a portion of the color filter is filled in the first opening; The light sensor is used to detect the color temperature of the ambient light.

15. The display panel according to any one of claims 3, 4, 8 or 9, characterized in that: One of the first electrode layer and the second electrode layer is a pixel electrode layer, and the other is a common electrode layer.

16. The display panel according to claim 15, wherein: The pixel electrode layer includes at least one dual-domain electrode structure, and when the number of the dual-domain electrode structures is two or more, orthographic projections of the dual-domain electrode structures on the surface of the array substrate do not overlap with each other.

17. The display panel according to claim 16, wherein: The dual-domain electrode structure includes a first domain portion, a second domain portion, a first connecting portion and a second connecting portion; The first domain portion includes at least one first strip-shaped sub-portion extending along a first direction, and the second domain portion includes at least one second strip-shaped sub-portion extending along a second direction, wherein the first direction intersects the second direction; The number of the first strip-shaped divisions is the same as that of the second strip-shaped divisions, one end of the first strip-shaped division is connected to one end of the second strip-shaped division in a one-to-one correspondence, the other end of the first strip-shaped division is connected to the first connecting portion, and the other end of the second strip-shaped division is connected to the second connecting portion.

18. The display panel according to claim 15, wherein: The pixel electrode layer includes at least one single-domain electrode structure, and when the number of the single-domain electrode structures is two or more, orthographic projections of the single-domain electrode structures on the surface of the array substrate do not overlap with each other.

19. The display panel according to claim 18, wherein: The single-domain electrode structure includes a third domain portion and a third connecting portion; The third domain portion includes at least one third strip-shaped sub-portion extending along the third direction, one end of each third strip-shaped sub-portion is connected to the third connecting portion, and the other end of the third strip-shaped sub-portion is suspended; The third strip-shaped portion is in a curved shape or a straightened shape.

20. The display panel according to claim 1, wherein The display panel includes a display area and a non-display area, and the non-display area is connected to the display area; The light sensor is located in the non-display area.

21. The display panel according to claim 20, wherein: The display panel also includes a packaging plastic frame; The packaging frame is located in the non-display area, between the color filter substrate and the array substrate, and on a side of the light sensor away from the display area.

22. A display device, characterized in that: The device comprises a backlight module and a display panel according to any one of claims 1 to 21.

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