Display panel and display module

By using a variety of color resistance and light sensing transistor in the display panel to detect the base color and mixed light in the environmental light, the problem of unable to distinguish between similar spectral environment in the existing technology, and realize the accurate identification of environmental light types. The accurate determination of the light source type.

CN119376132AActive Publication Date: 2025-01-28BEIJING BOE DISPLAY TECH CO LTD +1

Patent Information

Application Number
CN202411488363.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-23
Publication Date
2025-01-28
Estimated Expiration
2044-10-23

AI Technical Summary

Technical Problem

In the prior art, the photosensitive sensor cannot effectively distinguish some ambient light sources with similar spectra, resulting in inaccurate display of color temperature adjustment under different ambient lights.

Method used

Design a display panel contains multiple first -color resistance and first sensing transistor, which is used to detect the base color light in the environment of the environment, and through the second color resistance and the second sensor transistor, the wavelength overlap of the mixed light is detected. Generate electrical signals to identify environmental light types.

Benefits of technology

Through comparison of the first electrical signal and the second power signal, the accurate identification of the type of environmental light is realized, thereby accurately determining the type and spectrum of the light source, and improving the accuracy of environmental light recognition.

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Abstract

The embodiment of the invention provides a display panel and a display module. The display panel comprises a substrate and a photosensitive module. The photosensitive module comprises a plurality of first color resistors, a plurality of first photosensitive transistors, a second color resistor and a second photosensitive transistor; the second color resistor is arranged on one side, deviating from the substrate, of the second photosensitive transistor; the first color resistors are used for transmitting any one of the three primary lights, and the first photosensitive transistors are used for detecting the primary lights transmitting the corresponding first color resistors and generating first electric signals; the second color resistor is used for transmitting mixed light, the wavelength range of the mixed light is the intersection of the wavelength ranges of two kinds of primary light in the three kinds of primary light, and the second photosensitive transistor is used for detecting ambient light transmitting the second color resistor and generating a second electric signal. According to the technology of the invention, the second electric signal is compared with the first electric signal, so that the type of the external ambient light is identified, the type and spectrum of the light source are determined, and the accuracy of ambient light identification is improved.
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Description

Technical Field

[0001] The present application relates to the field of display structure technology, and in particular to a display panel and a display module. Background Art

[0002] In the related art, in order to reduce the power consumption of the display panel and improve eye comfort, a photosensitive sensor is set in the display panel and the type of ambient light is calculated through algorithm processing. The brightness of the display screen is then automatically adjusted according to the type of ambient light. However, this detection method cannot distinguish between ambient light sources with similar spectra. Summary of the invention

[0003] The embodiments of the present application provide a display panel and a display module to solve or alleviate one or more technical problems in the prior art.

[0004] As one aspect of an embodiment of the present application, an embodiment of the present application provides a display panel, which includes a display area and a non-display area, and the display panel includes:

[0005] substrate substrate;

[0006] A photosensitive module is arranged on one side of the substrate and in the non-display area, and includes a plurality of first color resistors, a plurality of first photosensitive transistors, a second color resistor and a second photosensitive transistor; the plurality of first color resistors and the plurality of first photosensitive transistors are arranged one by one, and the first color resistor is arranged on the side of the corresponding first photosensitive transistor away from the substrate; the second color resistor is arranged corresponding to the second photosensitive transistor, and the second color resistor is arranged on the side of the second photosensitive transistor away from the substrate;

[0007] Among them, the first color resist is used to pass any one of the three primary colors of ambient light, and the first photosensitive transistor is used to detect the primary color light passing through the corresponding first color resist and generate a first electrical signal; the second color resist is used to pass mixed light in the ambient light, and the wavelength range of the mixed light is the intersection of the wavelength ranges of two of the three primary colors of light, and the second photosensitive transistor is used to detect the mixed light passing through the second color resist and generate a second electrical signal.

[0008] In some embodiments, a processing module is further included, which is in electrical communication with the light sensing module and is configured to determine the type of the ambient light according to the first electrical signal and / or the second electrical signal.

[0009] In some embodiments, the second color resist includes a first sub-color resist and a second sub-color resist, and the first sub-color resist and the second sub-color resist are adjacent to each other in a direction perpendicular to the substrate;

[0010] Among them, one of the first sub-color resist and the second sub-color resist is used to transmit blue primary light, and the other is used to transmit green primary light; or, one of the first sub-color resist and the second sub-color resist is used to transmit green primary light, and the other is used to transmit red primary light.

[0011] In some embodiments, the first sub-color resist is used to transmit blue primary color light, and the second sub-color resist is used to transmit green primary color light.

[0012] In some embodiments, the multiple first color resists include red color resist, green color resist and blue color resist, the red color resist is used to transmit red primary light, the green color resist is used to transmit green primary light, and the blue color resist is used to transmit blue primary light; the multiple first photosensitive transistors include a red photosensitive transistor set corresponding to the red color resist, a green photosensitive transistor set corresponding to the green color resist, and a blue photosensitive transistor set corresponding to the blue color resist.

[0013] In some embodiments, multiple first color resists and multiple first photosensitive transistors are arranged correspondingly, and the orthographic projection of the first photosensitive transistor on the substrate at least partially overlaps with the orthographic projection of the corresponding first color resist on the substrate; the orthographic projection of the second color resist on the substrate at least partially overlaps with the orthographic projection of the second photosensitive transistor on the substrate.

[0014] In some embodiments, the photosensitive module further includes a third photosensitive transistor and a black color resistor, the black color resistor is arranged on the side of the corresponding third photosensitive transistor away from the substrate, and the third photosensitive transistor is used to detect dark state brightness information.

[0015] In some embodiments, it further includes an array substrate, a liquid crystal layer and a color filter layer, wherein the array substrate is disposed on one side of the base substrate, the liquid crystal layer is disposed on a side of the array substrate away from the base substrate, and the color filter layer is disposed on a side of the liquid crystal layer away from the base substrate;

[0016] The plurality of first photosensitive transistors and the second photosensitive transistors are prepared in the same layer and process as the thin film transistors in the array substrate.

[0017] In some embodiments, the first electrical signal and the second electrical signal are voltage signals or current signals.

[0018] As another aspect of an embodiment of the present application, an embodiment of the present application provides a display module, which includes a display panel as described in any one of the above items.

[0019] The embodiments of the present application have the following beneficial effects:

[0020] Based on the display panel provided above, taking the example that the first color resist transmits the blue primary light and the second color resist transmits the overlapping part of the wavelengths of the blue primary light and the green primary light, the first photosensitive transistor detects the blue primary light transmitted through the first color resist and generates a first electrical signal, the second photosensitive transistor detects the overlapping part of the wavelengths of the blue primary light and the green primary light transmitted through the second color resist and generates a second electrical signal, the second electrical signal includes the spectral characteristics of the overlapping part of the wavelengths of the blue primary light and the green primary light, and then the second electrical signal is compared with the first electrical signal to realize the identification of the type of external ambient light, and then determine the type and spectrum of the light source, and further accurately identify the ambient light, which is conducive to improving the accuracy of ambient light identification. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments of the present application and should not be regarded as limiting the scope of the present application.

[0022] Figure 1 A cross-sectional view of a display panel according to an embodiment of the present application is shown;

[0023] Figure 2 A top view according to an embodiment of the present application is shown;

[0024] Figure 3 A schematic diagram showing the spectrum of ambient light passing through the color filter layer according to an embodiment of the present application;

[0025] Figure 4 A schematic diagram showing ADC ratios of the second photosensitive transistor corresponding to different light sources;

[0026] Figure 5 A schematic diagram of the spectrum of a D65 light source and an LED light source passing through a color filter layer according to an embodiment of the present application is shown.

[0027] Description of reference numerals:

[0028] 10. Display panel;

[0029] 100. Photosensitive module;

[0030] 110, first color resistance; 111, red color resistance; 112, green color resistance; 113, blue color resistance;

[0031] 120. a first photosensitive transistor;

[0032] 130, second color resist; 131, first sub-color resist; 132, second sub-color resist;

[0033] 140. a second photosensitive transistor;

[0034] 150. a third photosensitive transistor;

[0035] 160, black color resistance;

[0036] 200, array substrate; 210, thin film transistor; 211, thin film transistor substrate; 212, gate insulating layer; 213, passivation layer; 214, source electrode; 215, drain electrode; 216, gate electrode;

[0037] 300, liquid crystal layer;

[0038] 400. Color film layer. DETAILED DESCRIPTION

[0039] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present application. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0040] As the quality of life improves, people's requirements for display effects are getting higher and higher. Wide color gamut, high contrast, high refresh rate, and multi-level adjustment of brightness and color temperature are all the future development directions of display. Among them, color temperature is an indicator for evaluating display color. The lower the color temperature, the warmer the display color, and the higher the color temperature, the cooler the display color. Setting the appropriate display color temperature can greatly improve the viewing effect.

[0041] However, under different ambient light conditions, even if the display is set to the same color temperature, it will present different effects when viewed by the human eye, resulting in color difference and other issues. In order to improve the viewing experience of users, the display color temperature needs to be adjusted according to different ambient light conditions. Therefore, identifying the type of ambient light becomes an important factor in adjusting the display color temperature.

[0042] In the related art, in order to reduce the power consumption of the display panel and improve eye comfort, a photosensitive sensor is set in the display panel and the type of ambient light is calculated through algorithm processing. Then, the display color temperature is adjusted according to the type of ambient light. However, the detection method using the photosensitive sensor cannot distinguish between some ambient lights with similar spectra.

[0043] Figure 1 1 is a cross-sectional view showing a display panel 10 according to an embodiment of the present application, Figure 2 A top view of an embodiment of the present application is shown, see Figure 1 and Figure 2 The embodiment of the present application provides a display panel 10, which is divided into a display area and a non-display area, wherein the non-display area surrounds the display area. The display panel 10 includes a substrate and a photosensitive module 100.

[0044] For example, the substrate may be a substrate of an inorganic material or a substrate of an organic material; of course, it may also be a composite substrate formed by stacking a substrate of an inorganic material and a substrate of an organic material. For example, in some embodiments of the present application, the material of the substrate may be a glass material such as soda-lime glass, quartz glass, or sapphire glass.

[0045] The photosensitive module 100 is disposed on one side of the substrate and in the non-display area. The photosensitive module 100 includes a plurality of first color resists 110, a plurality of first photosensitive transistors 120, a second color resist 130, and a second photosensitive transistor 140. The plurality of first color resists 110 and the plurality of first photosensitive transistors 120 are disposed one by one, and the first color resist 110 is disposed on the side of the corresponding first photosensitive transistor 120 away from the substrate; the second color resist 130 and the second photosensitive transistor 140 are disposed correspondingly, and the second color resist 130 is disposed on the side of the second photosensitive transistor 140 away from the substrate;

[0046] The first color block 110 is used to transmit any one of the three primary colors in the ambient light, and the first photosensitive transistor 120 is used to detect the primary color light transmitted through the corresponding first color block 110 and generate a first electrical signal. The second color block 130 is used to transmit mixed light in the ambient light, and the wavelength range of the mixed light is the intersection of the wavelength ranges of two of the three primary colors, and the second photosensitive transistor 140 is used to detect the mixed light transmitted through the second color block 130 and generate a second electrical signal.

[0047] Since the ambient light emitted by different types of light sources is obtained by mixing different amounts of the three primary colors of red, green and blue, and the three primary colors of light pass through color resistors of different colors, the induced current generated by the first photosensitive transistor 120 is also different. Therefore, the type of ambient light can be determined by the detection amount of the first photosensitive transistor 120 corresponding to the color resistors of different colors.

[0048] For example, Figure 3 FIG. 4 is a schematic diagram showing the spectrum of ambient light passing through the color filter layer 400 according to an embodiment of the present application, see Figure 3When the first color resist 110 transmits green primary color light, after the ambient light passes through the color filter of the display panel 10 and the first color resist 110, the wavelength of the green primary color light detected by the first photosensitive transistor 120 is 470nm to 640nm. When the first color resist 110 transmits blue primary color light, after the ambient light passes through the color filter of the display panel 10 and the first color resist 110, the wavelength of the blue primary color light detected by the first photosensitive transistor 120 is 380nm to 548nm. When the first color resist 110 transmits red primary color light, after the ambient light passes through the color filter of the display panel 10 and the first color resist 110, the wavelength of the red primary color light detected by the first photosensitive transistor 120 is 580nm to 800nm. Since the wavelengths of the green primary light, the blue primary light and the red primary light overlap to a small extent, when the first color resist 110 transmits the blue primary light, it also transmits the green primary light that overlaps with the wavelength of the blue primary light. When the first color resist 110 transmits the red primary light, it also transmits the green primary light that overlaps with the wavelength of the red primary light. This makes the detection result of the first photosensitive transistor 120 inaccurate, resulting in the inability to accurately distinguish different types of light sources when performing algorithm processing based on the first electrical signal.

[0049] It is understandable that the algorithm processing may be the ADC ratio of different color channels, for example, the ratio of the blue channel to the green channel (B / G), the ratio of the red channel to the green channel (R / G), and the ratio of the red channel to the blue channel (R / B). It should be noted that the algorithm processing may also be other calculation methods for detecting and distinguishing different types of ambient light, for example, determining the type of ambient light based on the proportion of the detection amount corresponding to the first photosensitive transistor 120 and the second photosensitive transistor 140. It should be noted that the specific calculation method is not involved in the implementation of the present application and will not be described in detail here.

[0050] It should be noted that the wavelength of the green primary color light overlaps with the blue primary color light and the red primary color light, and therefore, the second color resist 130 can transmit the green primary color light and the blue primary color light, or transmit the green primary color light and the red primary color light.

[0051] According to the display panel 10 of the embodiment of the present application, the first photosensitive transistor 120 detects the primary color light passing through the first color resist 110 and generates a first electrical signal, and the second photosensitive transistor 140 detects the mixed light passing through the second color resist 130 and generates a second electrical signal. Taking the example that the first color resist 110 passes the blue primary color light and the second color resist 130 passes the wavelength overlap part of the blue primary color light and the green primary color light, the first photosensitive transistor 120 detects the blue primary color light passing through the first color resist 110 and generates a first electrical signal, and the second photosensitive transistor 140 detects the wavelength overlap part of the blue primary color light and the green primary color light passing through the second color resist 130 and generates a second electrical signal, the second electrical signal includes the spectral characteristics of the wavelength overlap part of the blue primary color light and the green primary color light, and then the second electrical signal is compared with the first electrical signal, so as to realize the identification of the type of external ambient light, and then determine the type and spectrum of the light source, further accurately identify the ambient light, which is conducive to improving the accuracy of ambient light identification.

[0052] Among them, the light source includes A light source, D65 light source, CWF light source, U30 light source, and LED light source, etc. The photosensitive module 100 of the present application is used to determine the type of the above light sources.

[0053] It should be noted that the photosensitive transistor converts the ambient light into an electrical signal when receiving ambient light. Specifically, when the gate 216 of the photosensitive transistor receives the first control signal, the gate 216 of the photosensitive transistor is set to a closed state. When exposed to light, the voltage output by the drain 215 of the photosensitive transistor increases, and the voltage change is read as a photosensitive signal. According to the response results to different wavelengths combined with the spectral characteristics of common ambient light, the ambient light emitted by different light sources is identified.

[0054] In some embodiments, the present application also includes a processing module, which electrically communicates with the photosensitive module. The processing module determines the type of ambient light based on the first electrical signal and / or the second electrical signal. The processing module is used to compare the second electrical signal with the first electrical signal, thereby identifying the type of ambient light, thereby accurately identifying the corresponding light source and spectrum, and further realizing accurate identification of the light source.

[0055] In some embodiments, see Figure 1 The second color resist 130 includes a first sub-color resist 131 and a second sub-color resist 132 , and the first sub-color resist 131 and the second sub-color resist 132 are adjacent to each other along a direction perpendicular to the substrate.

[0056] Among them, one of the first sub-color resist 131 and the second sub-color resist 132 is used to transmit the blue primary color light, and the other is used to transmit the green primary color light. Specifically, the first sub-color resist 131 transmits the blue primary color light with a wavelength of 470nm to 548nm, and the second sub-color resist 132 transmits the green primary color light with a wavelength of 470nm to 548nm, so that the second photosensitive transistor 140 detects the wavelength overlap portion of the blue primary color light and the green primary color light that pass through the second color resist 130 and generates a second electrical signal.

[0057] In another embodiment, one of the first sub-color resist 131 and the second sub-color resist 132 is used to transmit green primary light, and the other is used to transmit red primary light. Specifically, the first sub-color resist 131 transmits green primary light with a wavelength of 580nm to 640nm, and the second sub-color resist 132 transmits red primary light with a wavelength of 580nm to 640nm, so that the second photosensitive transistor 140 detects the wavelength of the overlapping portion of the wavelengths of the red primary light and the green primary light that pass through the second color resist 130 and generates a second electrical signal.

[0058] Figure 4 A schematic diagram showing the ADC ratio of the second photosensitive transistor 140 corresponding to different light sources, Figure 5 FIG. 4 is a schematic diagram showing the spectrum of a D65 light source and an LED light source passing through the color filter layer 400 according to an embodiment of the present application, see FIG. Figure 4 and Figure 5 In the related art, when judging the external light source by the ADC ratio (R / B) tested by the red color resist 111 and the blue color resist 113 among the red color resist 111, the green color resist 112, and the blue color resist 113, it is found that the ADC ratio (R / B) of the D65 light source and the LED light source are relatively close, both of which are around 0.9, so it is difficult to distinguish the D65 light source from the LED light source.

[0059] Based on this, see Figure 1 The first sub-color resist 131 is used to transmit the blue primary color light, and the second sub-color resist 132 is used to transmit the green primary color light. The wavelength of the red primary color light is 580nm to 800nm. Figure 5As shown, the energy difference between the D65 spectrum and the LED spectrum in the band of 480nm to 500nm is relatively large, and 480nm to 500nm is the overlapping band of the red primary light and the green primary light. Therefore, the present application sets the first sub-color resist 131 to transmit the blue primary light and sets the second sub-color resist 132 to transmit the green primary light, so that the overlapping part of the green primary light and the blue primary light in the band of 480nm to 500nm can pass through the first sub-color resist 131 and the second sub-color resist 132, so that the second photosensitive transistor 140 can detect the response result of the overlapping part of the green primary light and the red primary light in the band of 480nm to 500nm passing through the second color resist 130 and generate a second electrical signal, so as to obtain more spectral characteristics of the overlapping part of the D65 and LED light sources, and then realize the identification of whether the external ambient light is a D65 light source or an LED light source through subsequent algorithm processing.

[0060] It can be understood that the color of the transmitted light of the first sub-color resist 131 and the second sub-color resist 132 of the present application can be selected according to two different light sources that need to be further accurately identified, and is not limited here.

[0061] In some embodiments, see Figure 1 and Figure 2 The plurality of first color resists 110 include a red color resist 111, a green color resist 112, and a blue color resist 113. The red color resist 111 is used to transmit red primary color light, the green color resist 112 is used to transmit green primary color light, and the blue color resist 113 is used to transmit blue primary color light. The plurality of first photosensitive transistors 120 include a red photosensitive transistor corresponding to the red color resist 111, a green photosensitive transistor corresponding to the green color resist 112, and a blue photosensitive transistor corresponding to the blue color resist 113. With such a configuration, the processing module can determine the type of ambient light according to the first electrical signals corresponding to the red color resist 111, the green color resist 112, and the blue color resist 113.

[0062] The ambient light emitted by different types of light sources can be considered to be obtained by mixing different amounts of red, green and blue primary colors of light. In addition, the three primary colors of light of different colors pass through the red color resist 111, the green color resist 112 and the blue color resist 113, so that the corresponding first photosensitive transistor 120 generates different induced currents or voltages.

[0063] In some embodiments, a plurality of first color resists 110 and a plurality of first photosensitive transistors 120 are correspondingly arranged, and the orthographic projection of the first photosensitive transistor 120 on the substrate substrate at least partially overlaps with the orthographic projection of the corresponding first color resist 110 on the substrate substrate, so that the first photosensitive transistor 120 can detect the ambient light passing through the first color resist 110. The orthographic projection of the second color resist 130 on the substrate substrate at least partially overlaps with the orthographic projection of the second photosensitive transistor 140 on the substrate substrate, so that the second photosensitive transistor 140 can detect the ambient light passing through the second color resist 130.

[0064] For example, see Figure 1 , the orthographic projection of the red color resist 111 on the substrate substrate at least partially overlaps with the orthographic projection of the corresponding first photosensitive transistor 120 on the substrate substrate. The orthographic projection of the green color resist 112 on the substrate substrate at least partially overlaps with the orthographic projection of the corresponding first photosensitive transistor 120 on the substrate substrate. The orthographic projection of the blue color resist 113 on the substrate substrate at least partially overlaps with the orthographic projection of the corresponding first photosensitive transistor 120 on the substrate substrate.

[0065] In some embodiments, see Figure 1 , the photosensitive module 100 further includes a third photosensitive transistor 150 and a black color resistor 160. The black color resistor 160 is disposed on the side of the corresponding third photosensitive transistor 150 away from the substrate. The third photosensitive transistor 150 is used to detect dark-state brightness information, which can be used as a reference value for the first photosensitive transistor 120 and the second photosensitive transistor 140. Specifically, since the photosensitive transistor has leakage current, the third photosensitive transistor 150, the first photosensitive transistor 120 and the second photosensitive transistor 140 are disposed on the same layer, so it can be determined that the leakage currents of the third photosensitive transistor 150, the first photosensitive transistor 120 and the second photosensitive transistor 140 are consistent. In order to more accurately control a single variable, the embodiment of the present application uses the detection amount of the third photosensitive transistor 150 corresponding to the black color resistor 160 as a reference, thereby eliminating the influence of the noise and deviation of the first photosensitive transistor 120 and the second photosensitive transistor 140 on the detection results, and more reliable first electrical signals and second electrical signals can be obtained.

[0066] It should be noted that the black color resist 160 can absorb all ambient light, so the dark state brightness information output by the third photosensitive transistor 150 is the dark state background current of the first photosensitive transistor 120 and the second photosensitive transistor 140. Based on this, the first electrical signal output by the first photosensitive transistor 120 and the second electrical signal output by the second photosensitive transistor 140 can be processed by noise reduction using the dark state brightness information output by the third photosensitive transistor 150, thereby obtaining a more accurate detection result.

[0067] More specifically, the current output by the third photosensitive transistor 150 can be subtracted from the current output by the first photosensitive transistor 120 to obtain an accurate detection result after calibration of the first photosensitive transistor 120; similarly, the current output by the second photosensitive transistor 140 can be subtracted from the current output by the third photosensitive transistor 150 to obtain an accurate detection result after calibration of the second photosensitive transistor 140.

[0068] In some embodiments, see Figure 1 The present application also includes an array substrate 200, a liquid crystal layer 300 and a color filter layer 400. The array substrate 200 is arranged on one side of the base substrate, the liquid crystal layer 300 is arranged on the side of the array substrate 200 away from the base substrate, and the color filter layer 400 is arranged on the side of the liquid crystal layer 300 away from the base substrate.

[0069] The plurality of first photosensitive transistors 120 and second photosensitive transistors 140 are fabricated in the same layer and process as the thin film transistors 210 in the array substrate 200 , thereby simplifying the fabrication process of the first photosensitive transistors 120 and second photosensitive transistors 140 and reducing the processing cost.

[0070] In some embodiments, see Figure 1 The thin film transistor 210 includes a thin film transistor substrate 211 , a gate insulating layer 212 , a passivation layer 213 , a source electrode 214 , a drain electrode 215 , and a gate electrode 216 .

[0071] It is understandable that since the first photosensitive transistor 120 and the second photosensitive transistor 140 are manufactured in the same layer and the same process as the thin film transistor 210 in the array substrate 2002 , the first photosensitive transistor 120 and the second photosensitive transistor 140 are also thin film transistors 210 .

[0072] In some embodiments, the first electrical signal and the second electrical signal are voltage signals or current signals.

[0073] As another aspect of the embodiment of the present application, the embodiment of the present application provides a display module, which includes the display panel 10 as described above. Therefore, the display module has all the features and advantages of the display panel 10 as described above, which will not be repeated here. In general, taking the first color resist 110 passing through the blue primary light and the second color resist 130 passing through the wavelength overlap part of the blue primary light and the green primary light as an example, the first photosensitive transistor 120 detects the blue primary light passing through the first color resist 110 and generates a first electrical signal, and the second photosensitive transistor 140 detects the wavelength overlap part of the blue primary light and the green primary light passing through the second color resist 130 and generates a second electrical signal, the second electrical signal includes the spectral characteristics of the wavelength overlap part of the blue primary light and the green primary light, and then compares the second electrical signal with the first electrical signal, thereby realizing the identification of the type of external ambient light, and then determining the type and spectrum of the light source, and further accurately identifying the ambient light, which is conducive to improving the accuracy of ambient light identification.

[0074] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0075] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0076] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0077] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0078] The application above provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the application of the present application, the parts and settings of specific examples are described above. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed.

[0079] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A display panel, characterized in that: The display panel includes a display area and a non-display area. substrate substrate; A photosensitive module, arranged on one side of the base substrate and located in the non-display area, comprising a plurality of first color resistors, a plurality of first photosensitive transistors, a second color resistor and a second photosensitive transistor; the plurality of first color resistors and the plurality of first photosensitive transistors are arranged in a one-to-one correspondence, and the first color resistor is arranged on a side of the corresponding first photosensitive transistor away from the base substrate; the second color resistor is arranged in a corresponding manner to the second photosensitive transistor, and the second color resistor is arranged on a side of the second photosensitive transistor away from the base substrate; Among them, the first color resist is used to pass any one of the three primary colors of ambient light, and the first photosensitive transistor is used to detect the primary color light passing through the corresponding first color resist and generate a first electrical signal; the second color resist is used to pass mixed light in the ambient light, and the wavelength range of the mixed light is the intersection of the wavelength ranges of two of the three primary colors of light, and the second photosensitive transistor is used to detect the mixed light passing through the second color resist and generate a second electrical signal.

2. The display panel according to claim 1, characterized in that: Also includes: The processing module is in electrical communication with the light sensing module and is configured to determine the type of the ambient light according to the first electrical signal and / or the second electrical signal.

3. The display panel according to claim 1, characterized in that: The second color resist includes a first sub-color resist and a second sub-color resist, and the first sub-color resist and the second sub-color resist are adjacent to each other along a direction perpendicular to the base substrate; Among them, one of the first sub-color resist and the second sub-color resist is used to transmit blue primary light, and the other is used to transmit green primary light; or, one of the first sub-color resist and the second sub-color resist is used to transmit green primary light, and the other is used to transmit red primary light.

4. The display panel according to claim 3, characterized in that: The first sub-color resist is used to transmit blue primary color light, and the second sub-color resist is used to transmit green primary color light.

5. The display panel according to claim 1, characterized in that: The multiple first color resists include red color resist, green color resist and blue color resist, the red color resist is used to transmit red primary light, the green color resist is used to transmit green primary light, and the blue color resist is used to transmit blue primary light; the multiple first photosensitive transistors include a red photosensitive transistor arranged corresponding to the red color resist, a green photosensitive transistor arranged corresponding to the green color resist, and a blue photosensitive transistor arranged corresponding to the blue color resist.

6. The display panel according to any one of claims 1 to 5, characterized in that: The plurality of first color resists and the plurality of first photosensitive transistors are arranged correspondingly, and the orthographic projections of the first photosensitive transistors on the base substrate at least partially overlap with the orthographic projections of the corresponding first color resists on the base substrate; An orthographic projection of the second color resist on the base substrate at least partially overlaps with an orthographic projection of the second photosensitive transistor on the base substrate.

7. The display panel according to any one of claims 1 to 5, characterized in that: The photosensitive module also includes a third photosensitive transistor and a black color resistor. The black color resistor is arranged on a side of the corresponding third photosensitive transistor away from the base substrate. The third photosensitive transistor is used to detect dark-state brightness information.

8. The display panel according to any one of claims 1 to 5, characterized in that: It also includes an array substrate, a liquid crystal layer and a color filter layer, wherein the array substrate is arranged on one side of the base substrate, the liquid crystal layer is arranged on a side of the array substrate away from the base substrate, and the color filter layer is arranged on a side of the liquid crystal layer away from the base substrate; The plurality of first photosensitive transistors and the second photosensitive transistor are manufactured in the same layer and process as the thin film transistors in the array substrate.

9. The display panel according to any one of claims 1 to 5, characterized in that: The first electrical signal and the second electrical signal are voltage signals or current signals.

10. A display module, characterized in that: Comprising a display panel as described in any one of claims 1 to 9.

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