Display panel and display device

Abstract

The display panel comprises a light filtering layer, the light filtering layer comprises a plurality of light filtering units with different colors, a light shielding layer is provided with a first light transmitting opening, the first light transmitting opening is located in a light sensing area, a first covering layer is provided with a first groove, and the first groove is located in a non-light sensing area. The orthographic projections of the first light-transmitting opening and the first groove on the driving back plate are arranged between the orthographic projections of the two adjacent light filtering units on the driving back plate. When the color film layer is manufactured, the filter layer can fill the first groove and the first light-transmitting opening at the same time before exposure and development, so that the leveling difference between the filter layer around the first groove and the filter layer around the first light-transmitting opening can be reduced or eliminated, and the thicknesses and the flatness of filter units in a photosensitive area and a non-photosensitive area are consistent before and after exposure and development of the filter layer; the color cast phenomenon of the photosensitive area compared with the non-photosensitive area can be avoided. The utility model further provides a display device comprising the display panel.

Description

Technical Field

[0001] This utility model relates to the field of display technology, and more specifically, to a display panel and a display device. Background Technology

[0002] By forming a color filter layer on the encapsulation layer (COE, Color On Encapsulation), the polarizer is removed, making the display panel thinner, increasing light transmittance, and thus reducing power consumption.

[0003] To ensure that the light sensor can capture ambient light and adjust screen brightness, this type of display panel typically has a first light-transmitting opening in the light-sensitive area of ​​the light-blocking layer. Because the color resist layer corresponding to the filter unit exhibits a leveling difference around this first light-transmitting opening compared to the non-light-sensitive area, a color shift occurs in the light-sensitive area compared to the non-light-sensitive area.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this utility model, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to overcome the problem of color shift in the area around the first light-transmitting opening, and to provide a display panel and display device.

[0006] According to one aspect of the present invention, a display panel is provided, the display panel having a photosensitive area and a non-photosensitive area, the display panel including a driving back plate, a pixel defining layer, a light-shielding layer, a first cover layer and a filter layer, the pixel defining layer being disposed on one side of the driving back plate, the pixel defining layer having a pixel opening; the light-shielding layer being disposed on the side of the pixel defining layer away from the driving back plate, the light-shielding layer having a first light-transmitting opening located in the photosensitive area; the first cover layer being disposed between the pixel defining layer and the light-shielding layer, the first cover layer having a first groove located in the non-photosensitive area, the first groove being covered by the light-shielding layer; the filter layer being disposed between the first cover layer and the light-shielding layer or on the side of the light-shielding layer away from the driving back plate, the filter layer including a plurality of filter units of different colors, the orthographic projection of the filter units on the driving back plate covering the orthographic projection of the pixel opening on the driving back plate, the orthographic projection of the first light-transmitting opening and the first groove on the driving back plate being disposed between the orthographic projections of two adjacent filter units on the driving back plate.

[0007] In one embodiment of this utility model, the volume of the first groove is the same as the volume of the first light-transmitting opening.

[0008] In one embodiment of the present invention, the light-shielding layer is further provided with color resist openings. The orthographic projection of the color resist openings on the driving back plate is located within the orthographic projection of the pixel openings on the driving back plate. A light-shielding portion is formed between two adjacent color resist openings. The light-shielding portion includes a first light-shielding portion and a second light-shielding portion. The first light-shielding portion is located in the photosensitive area, and the second light-shielding portion is located in the non-photosensitive area. A first light-transmitting opening is located in the first light-shielding portion, and the second light-shielding portion covers the first groove.

[0009] In one embodiment of the present invention, the display panel further includes an encapsulation layer and a first touch electrode layer. The encapsulation layer is disposed between the first cover layer and the pixel defining layer, and the first touch electrode layer is disposed between the first cover layer and the encapsulation layer. The first touch electrode layer includes a plurality of first touch units, and the orthographic projection of the second light-shielding portion on the driving back panel covers the orthographic projection of the first touch unit on the driving back panel.

[0010] In one embodiment of the present invention, the first groove penetrates the first covering layer and exposes the encapsulation layer, the first touch unit is disposed in the first groove, the second light-shielding part is disposed in the first groove, and the second light-shielding part covers the encapsulation layer and the first touch unit.

[0011] In one embodiment of the present invention, the first groove penetrates the first cover layer and exposes the encapsulation layer, the first touch unit is disposed on both sides of the first groove, and the second light-shielding part is disposed in the first groove. The second light-shielding part extends from the side of the encapsulation layer away from the driving back plate to the side of the first cover layer away from the driving back plate.

[0012] In one embodiment of the present invention, the depth of the first groove is less than the thickness of the first cover layer, the first touch unit is disposed between the first cover layer and the encapsulation layer, the orthographic projection of the first touch unit on the drive back plate is located within the orthographic projection of the first groove on the drive back plate, the second light-shielding part is disposed in the first groove, and the second light-shielding part extends from the bottom of the first groove to the side of the first cover layer away from the drive back plate.

[0013] In one embodiment of this utility model, the filter units of different colors include a first filter unit, a second filter unit, and a third filter unit. The first filter unit is red, the second filter unit is green, and the third filter unit is blue. A first light-transmitting opening is disposed between two adjacent second filter units along a first direction. The orthographic projection of the first groove on the drive back plate is located between the orthographic projections of two adjacent second filter units on the drive back plate.

[0014] In one embodiment of this utility model, the filter layer is provided with m×n groups of filter units. The m groups of filter units extend along a first direction and are arranged along a second direction, and the n groups of filter units extend along a second direction and are arranged along a first direction. The filter units of the same m group are divided into two rows, and the two rows of filter units are arranged alternately. One row of filter units consists of alternating first and third filter units, and the other row consists of second filter units. The second filter units are located between the first and third filter units along the first direction. The n groups of filter units extend along a second direction and are arranged along a first direction. The n groups of filter units are divided into two columns, and the two columns of filter units are arranged alternately. One column of filter units consists of alternating first and third filter units, and the other column consists of second filter units. The second filter units are located between the first and third filter units along the second direction. The first light-transmitting opening and the first groove are provided between adjacent second filter units along the first direction or along the second direction.

[0015] In one embodiment of the present invention, the first cover layer is provided with a second light-transmitting opening, the second light-transmitting opening is located in the photosensitive area, the angle between the side of the second light-transmitting opening and the side of the first cover layer near the driving back plate is 45 to 75 degrees, a filter unit of a certain color is filled in the second light-transmitting opening and overlaps to the side of the first cover layer away from the driving back plate, and the refractive index of the filter unit of the certain color is greater than the refractive index of the first cover layer.

[0016] In one embodiment of the present invention, the second filter unit is filled in the second light-transmitting opening and overlaps the first cover layer on the side away from the drive back plate, and the refractive index of the second filter unit is greater than the refractive index of the first cover layer.

[0017] In one embodiment of this utility model, the refractive index of the first covering layer is 1.45 to 1.5, and the refractive index of the filter unit of a certain color is greater than or equal to 1.6.

[0018] In one embodiment of the present invention, the orthographic projection of the second light-transmitting opening on the driving back plate is located within the orthographic projection of the pixel opening on the driving back plate. The orthographic projection of the end of the pixel opening near the driving back plate on the driving back plate is the first orthographic projection, and the orthographic projection of the end of the second light-transmitting opening near the driving back plate on the driving back plate is the second orthographic projection. The distance between the second orthographic projection and the first orthographic projection is 0 to 3 μm.

[0019] In one embodiment of this utility model, a third light-transmitting opening is provided on the first cover layer, and a refractive part is provided inside the third light-transmitting opening. The angle between the side of the refractive part and the side of the first cover layer near the drive back plate is 65 to 85 degrees. A gap is formed between the refractive part and the edge of the third light-transmitting opening. A filter unit of a certain color is provided on the side of the first cover layer and the refractive part away from the drive back plate. The filter unit of a certain color fills the gap. The refractive index of the filter unit of a certain color is less than the refractive index of the refractive part.

[0020] In one embodiment of the present invention, the second filter unit is disposed on the side of the first cover layer and the refractive part away from the drive back plate, the second filter unit fills the gap, and the refractive index of the second filter unit is less than the refractive index of the refractive part.

[0021] In one embodiment of this utility model, the refractive index of the refracting part is 1.7 to 1.8, and the refractive index of the second filter unit of a certain color is less than or equal to 1.6.

[0022] In one embodiment of the present invention, the orthographic projection of the refractive part on the driving back plate is located within the orthographic projection of the pixel opening on the driving back plate. The orthographic projection of the end of the pixel opening near the driving back plate on the driving back plate is the first orthographic projection, and the orthographic projection of the end of the refractive part near the driving back plate on the driving back plate is the third orthographic projection. The distance between the third orthographic projection and the first orthographic projection is 0 to 3 μm.

[0023] In one embodiment of the present invention, the shape of the orthographic projection of the first groove on the drive back plate is polygonal or circular.

[0024] In one embodiment of the present invention, the orthographic projection of the second light-shielding part on the drive back plate covers the orthographic projection of the first touch unit on the drive back plate, and the first touch unit is disposed on both sides of the first light-transmitting opening.

[0025] In one embodiment of the present invention, a filter layer is disposed on the side of the light-shielding layer away from the drive back plate, and multiple filter units of different colors are disposed in different color blocking openings. The filter units extend from the side of the first cover layer away from the drive back plate to the side of the light-shielding layer away from the drive back plate.

[0026] In one embodiment of the present invention, a light filter layer is disposed between a first cover layer and a light shielding layer, and multiple light filter units of different colors are spaced apart on the side of the first cover layer away from the drive back plate. The light shielding layer is disposed on the side of the light filter units away from the drive back plate, and the color blocking opening exposes the light filter units.

[0027] In one embodiment of the present invention, the pixel defining layer is further provided with a fourth light-transmitting opening, the fourth light-transmitting opening is located in the photosensitive area, the fourth light-transmitting opening is located between two adjacent pixel openings, and the orthographic projection of the first light-transmitting opening on the driving back plate is located within the orthographic projection of the fourth light-transmitting opening on the driving back plate.

[0028] According to another aspect of the present invention, a display panel is provided, the display panel having a photosensitive area and a non-photosensitive area, the display panel including a driving backplate, a pixel defining layer, a light-shielding layer, a first cover layer and a filter layer, the pixel defining layer being disposed on one side of the driving backplate, the pixel defining layer having pixel openings; the light-shielding layer being disposed on the side of the pixel defining layer away from the driving backplate, the light-shielding layer having a first light-transmitting opening, the first light-transmitting opening being located in the photosensitive area, the orthographic projection of the first light-transmitting opening on the driving backplate being located between the orthographic projections of adjacent pixel openings on the driving backplate; the first cover layer being disposed on the photosensitive area... Between the pixel-defining layer and the light-shielding layer, the first cover layer has a second light-transmitting opening. The orthographic projection of the second light-transmitting opening on the driving back plate is located within the orthographic projection of the pixel opening on the driving back plate. The second light-transmitting opening is located in the non-photosensitive area. The angle between the side of the second light-transmitting opening and the side of the first cover layer near the driving back plate is 45 to 75 degrees. A filter layer is disposed between the first cover layer and the light-shielding layer or on the side of the light-shielding layer away from the driving back plate. The filter layer includes multiple filter units, which fill the second light-transmitting opening. The refractive index of the filter units is greater than that of the first cover layer.

[0029] According to another aspect of the present invention, a display panel is provided, which has a photosensitive area and a non-photosensitive area. The display panel includes a driving backplate, a pixel defining layer, a light-shielding layer, a first cover layer, and a filter layer. The pixel defining layer is disposed on one side of the driving backplate and has pixel openings. The light-shielding layer is disposed on the side of the pixel defining layer away from the driving backplate and has a first light-transmitting opening located in the photosensitive area. The orthographic projection of the first light-transmitting opening on the driving backplate is located between the orthographic projections of adjacent pixel openings on the driving backplate. The first cover layer is disposed between the pixel defining layer and the light-shielding layer and has a third light-transmitting opening. A refractive portion is disposed within the third light-transmitting opening. The angle between the side of the refractive portion and the side of the first cover layer near the driving backplate is 65 to 85 degrees, and a gap is formed between the refractive portion and the edge of the third light-transmitting opening. The filter layer is disposed between the first cover layer and the light-shielding layer or on the side of the light-shielding layer away from the driving backplate. The filter layer includes a plurality of filter units that fill the gaps. The refractive index of the filter units is less than the refractive index of the refractive portion.

[0030] According to another aspect of the present invention, a display device is provided, comprising the display panel provided in any of the above aspects of the present invention.

[0031] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit the present invention. Attached Figure Description

[0032] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments conforming to the present invention and, together with the description, serve to explain the principles of the present invention. It is obvious that the drawings described below are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0033] Figure 1 This is a planar schematic diagram of the photosensitive area of ​​the display panel according to an embodiment of the present invention, where the orthogonal projection of the first light-transmitting opening on the substrate is located within the orthogonal projection of the first touch opening on the substrate.

[0034] Figure 2 for Figure 1 A schematic diagram of the A1-A1 cross section.

[0035] Figure 3 This is a plan view of the non-photosensitive area of ​​the display panel in this embodiment of the invention, where the first cover layer is a single layer in the non-photosensitive area.

[0036] Figure 4 for Figure 3 A schematic diagram of the A2-A2 cross section.

[0037] Figure 5 This is a schematic diagram of the optical path involved in an embodiment of the present invention, showing the refraction of emitted light at the edge of the second filter unit in the non-photosensitive area.

[0038] Figure 6 This is a schematic diagram of the optical path involved in the embodiment of the present invention when the emitted light is refracted at the edge of the second filter unit in the photosensitive area.

[0039] Figure 7 This is a cross-sectional schematic diagram of the photosensitive area of ​​the display panel according to an embodiment of the present invention, where the orthogonal projection of the first light-transmitting opening on the substrate is located within the orthogonal projection of the fourth light-transmitting opening on the substrate.

[0040] Figure 8 This is a plan view of the photosensitive area of ​​the first cover layer in this embodiment of the invention, where the first cover layer is a single layer in the photosensitive area.

[0041] Figure 9 A plan view of the non-photosensitive area of ​​the first cover layer in this embodiment of the invention, where the first groove is provided in the non-photosensitive area of ​​the first cover layer.

[0042] Figure 10 A plan view of the non-photosensitive area of ​​the display panel involved in this embodiment of the present invention, wherein a first groove is provided in the non-photosensitive area of ​​the first cover layer and a first touch unit is disposed in the first groove.

[0043] Figure 11 for Figure 10 Enlarged schematic diagram of part B1.

[0044] Figure 12 for Figure 10 A schematic diagram of the A2-A2 cross section.

[0045] Figure 13 A planar schematic diagram of the non-photosensitive area of ​​the display panel involved in this embodiment of the present invention, wherein a first groove is provided in the non-photosensitive area of ​​the first cover layer and the first touch unit is located on both sides of the first groove along the first direction.

[0046] Figure 14 for Figure 13 Enlarged schematic diagram of part B2.

[0047] Figure 15 for Figure 13 A schematic diagram of the A2-A2 cross section.

[0048] Figure 16 A cross-sectional schematic diagram of the non-photosensitive area of ​​the display panel involved in this embodiment of the present invention is shown, wherein the first groove is provided in the non-photosensitive area of ​​the first cover layer and the depth of the first groove is less than the thickness of the first cover layer.

[0049] Figure 17 This is a planar schematic diagram of the photosensitive area of ​​the display panel according to an embodiment of the present invention, where the orthogonal projection of the first light-transmitting opening on the substrate is located within the orthogonal projection of the fourth light-transmitting opening on the substrate.

[0050] Figure 18 for Figure 17 A schematic diagram of the A3-A3 cross section.

[0051] Figure 19 A plan view of the non-photosensitive area of ​​the display panel involved in this embodiment of the present invention, wherein the first cover layer has a second light-transmitting opening and a first groove in the non-photosensitive area.

[0052] Figure 20 This is a plan view of the first covering layer in this embodiment of the present invention, where the second light-transmitting opening is located between two adjacent first grooves along the first direction.

[0053] Figure 21 for Figure 19 Enlarged diagram of part B3.

[0054] Figure 22When the depth of the first groove is less than the depth of the first cover layer, Figure 19 A schematic diagram of the A4-A4 cross section.

[0055] Figure 23 When the first groove penetrates the first cover layer, Figure 19 A schematic diagram of the A4-A4 cross section.

[0056] Figure 24 A plan view of the non-photosensitive area of ​​the display panel in this embodiment of the present invention, wherein a third light-transmitting opening is provided on the first cover layer and a refractive part is provided inside the third light-transmitting opening.

[0057] Figure 25 A planar schematic diagram of the first cover layer in the non-photosensitive area when the first cover layer has a third light-transmitting opening and a refractive part is provided inside the third light-transmitting opening.

[0058] Figure 26 for Figure 24 Enlarged diagram of part B4.

[0059] Figure 27 When the depth of the first groove is less than the depth of the first cover layer, Figure 24 A schematic diagram of the A4-A4 cross section.

[0060] Figure 28 When the depth of the first groove is less than the depth of the first cover layer, Figure 24 A schematic diagram of the A4-A4 cross section.

[0061] Figure 29 A cross-sectional schematic diagram of the non-photosensitive area of ​​the display panel involved in this utility model embodiment is shown, wherein a second light-transmitting opening is provided on the first cover layer, a first groove is provided in the non-photosensitive area of ​​the first cover layer, and a first touch unit is located on both sides of the first groove along the first direction.

[0062] Figure 30 A cross-sectional schematic diagram of the non-photosensitive area of ​​the display panel involved in this utility model embodiment is shown, wherein a third light-transmitting opening is provided on the first cover layer, a first groove is provided in the non-photosensitive area of ​​the first cover layer, and the first touch unit is located on both sides of the first groove along the first direction.

[0063] Figure 31 A cross-sectional schematic diagram of the photosensitive area of ​​the display panel according to an embodiment of the present invention, wherein the light-shielding layer is disposed on the side of the light-filtering layer away from the substrate.

[0064] Figure 32 A cross-sectional schematic diagram of the non-photosensitive area of ​​the display panel involved in this embodiment of the present invention is shown, wherein a third light-transmitting opening is provided on the first cover layer, the depth of the first groove is less than the depth of the first cover layer, and the light-shielding layer is provided on the side of the filter layer away from the substrate.

[0065] Figure 33 This is a plan view of the non-photosensitive area of ​​the display panel in an embodiment of the present invention, where the first cover layer has a second light-transmitting opening in the non-photosensitive area.

[0066] Figure 34 This is a plan view of the non-photosensitive area of ​​the first cover layer in an embodiment of the present invention, where the first cover layer has a second light-transmitting opening in the non-photosensitive area.

[0067] Figure 35 for Figure 33 Enlarged diagram of part B5 in the middle.

[0068] Figure 36 for Figure 33 A schematic diagram of the A5-A5 cross section.

[0069] Figure 37 A plan view of the non-photosensitive area of ​​the display panel involved in this embodiment of the present invention, wherein the first cover layer has a third light-transmitting opening in the non-photosensitive area and a refractive part is provided in the third light-transmitting opening.

[0070] Figure 38 A plan view of the non-photosensitive area of ​​the first cover layer in this embodiment of the invention, wherein the first cover layer has a third light-transmitting opening in the non-photosensitive area and a refractive part is provided in the third light-transmitting opening.

[0071] Figure 39 for Figure 37 Enlarged schematic diagram of part B6 in the middle.

[0072] Figure 40 for Figure 37 A schematic diagram of the A5-A5 cross section.

[0073] Explanation of reference numerals in the attached figures:

[0074] 10-Drive backplane, 11-Substrate, 12-Buffer layer;

[0075] 13-Driver circuit layer, 131-Active layer, 1321-First gate insulating layer, 1322-Second gate insulating layer, 1331-First gate, 1332-Second gate, 134-Interlayer dielectric layer, 135-First source, 136-Drain, 137-Protective layer, 138-Second source;

[0076] 139-Planning layer group, 1391-First planarization layer, 1392-Second planarization layer;

[0077] 15-Pixel defining layer, 151-Pixel opening, 1511-First pixel opening, 1512-Second pixel opening, 1513-Third pixel opening, 152-Fourth light-transmitting opening;

[0078] 16-Light-emitting layer, 161-Pixel electrode, 162-Light-emitting unit, 1621-Red light-emitting unit, 1622-Green light-emitting unit, 1623-Blue light-emitting unit, 163-Common electrode;

[0079] 17-Encapsulation layer, 171-First inorganic encapsulation layer, 172-Organic encapsulation layer, 173-Second inorganic encapsulation layer;

[0080] 18-Touch control layer, 181-First touch electrode layer, 1811-First touch unit, 1812-Touch grid, 1813-First connecting part, 1814-First touch opening, 1815-Second connecting part, 1816-Second touch opening, 182-First covering layer, 1821-First groove, 1822-Second light-transmitting opening, 1823-Third light-transmitting opening, 1824-Refracting part, 1825-Gap, 183-Second touch electrode layer, 184-Touch insulating layer;

[0081] 19-Color filter layer, 191-Light blocking layer, 1911-First light-transmitting opening, 1912-Color blocking opening, 1913-First color blocking opening, 1914-Second color blocking opening, 1915-Third color blocking opening, 1916-First light-blocking part, 1917-Second light-blocking part, 1918-Second groove, 192-Filter layer, 1921-First filter unit, 1922-Second filter unit, 1923-Third filter unit;

[0082] 20 - Second Covering Layer;

[0083] 100 - Photosensitive area, 200 - Non-photosensitive area. Detailed Implementation

[0084] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted. Furthermore, the drawings are merely illustrative of the present invention and are not necessarily drawn to scale.

[0085] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.

[0086] The terms “a,” “one,” “the,” “the,” and “at least one” are used to indicate the presence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first,” “second,” and “third,” etc., are used only as markers and are not a limitation on the number of objects.

[0087] like Figures 1 to 4 As shown, the display panel includes a driving backplate 10, a pixel defining layer 15, a light-emitting layer 16, an encapsulation layer 17, a first touch electrode layer 181, a first cover layer 182, a color filter layer 19, and a second cover layer 20. The pixel defining layer 15 is disposed on one side of the driving backplate 10 and has pixel openings 151. The light-emitting layer 16 includes multiple pixel electrodes 161, multiple light-emitting units 162 of different colors, and a common electrode 163. The multiple pixel electrodes 161 are respectively disposed in different pixel openings 151. The multiple light-emitting units 162 of different colors are respectively disposed on the side of each pixel electrode 161 away from the driving backplate 10. The common electrode 163 is disposed on the side of the multiple light-emitting units 162 away from the driving backplate 10. The encapsulation layer 17 is disposed on the side of the common electrode 163 away from the driving backplate 10. The first touch electrode layer 181 is disposed on the side of the encapsulation layer 17 away from the driving backplate 10, the first cover layer 182 is disposed on the side of the first touch electrode layer 181 away from the driving backplate 10, the color filter layer 19 is disposed on the side of the first cover layer 182 away from the driving backplate 10, and the second cover layer 20 is disposed on the side of the color filter layer 19 away from the driving backplate 10. By forming the color filter layer 19 on the encapsulation layer 17 (COE, Color On Encapsulation) to replace the polarizer, the display panel becomes thinner, the light transmittance increases, and power consumption is reduced. The color filter layer 19 includes a light-shielding layer 191 and a light-filtering layer 192. The light-shielding layer 191 has multiple color-blocking openings 1912. The orthographic projection of the color-blocking openings 1912 on the driving backplate 10 is located within the orthographic projection of the pixel openings 151 on the driving backplate 10. The light-filtering layer 192 includes multiple light-filtering units of different colors, and the multiple light-filtering units of different colors are respectively disposed within each color-blocking opening 1912.

[0088] To achieve screen brightness adjustment, the display panel typically has a photosensitive area 100. A light sensor is located on the side of the driving backplate 10 away from the pixel defining layer 15. To ensure ambient light can reach the light sensor, the light-shielding layer 191 also has a first light-transmitting opening 1911, and the pixel defining layer 15 has a fourth light-transmitting opening 152. The first and fourth light-transmitting openings 1911 and 152 are located within the photosensitive area 100. The orthographic projection of the first light-transmitting opening 1911 onto the driving backplate 10 lies between the orthographic projections of two adjacent filter units onto the driving backplate 10. The fourth light-transmitting opening 152 lies between two adjacent pixel openings 151, and its orthographic projection lies within the orthographic projection of the fourth light-transmitting opening 152 onto the driving backplate 10. Ambient light passes sequentially through the first and fourth light-transmitting openings 1911 and 152, reaching the light sensor.

[0089] like Figure 1 and Figure 3 As shown, the first touch electrode layer 181 includes a plurality of first touch units 1811, which form a plurality of touch grids 1812. The touch grids 1812 are arranged in multiple rows along a first direction and multiple columns along a second direction. Any two adjacent touch grids 1812 in the same row are interconnected, and any two adjacent touch grids 1812 in the same column are interconnected. The orthographic projection of the touch grids 1812 onto the substrate 11 is located outside the orthographic projection of the color resist openings 1912 onto the substrate 11. Figure 1 As shown, in the photosensitive area 100, two first connecting portions 1813 are provided between two adjacent touch grids 1812 along the first direction. The two first connecting portions 1813 are spaced apart in the second direction. The two first connecting portions 1813 connect the two adjacent touch grids 1812 together. The two first connecting portions 1813 and the two touch grids 1812 form a first touch opening 1814. The orthographic projection of the first light-transmitting opening 1911 on the substrate 11 is located within the orthographic projection of the first touch opening 1814 on the substrate 11.

[0090] Multiple filter units of different colors include a first filter unit 1921, a second filter unit 1922, and a third filter unit 1923. The first filter unit 1921 is red, the second filter unit 1922 is green, and the third filter unit 1923 is blue. The photosensitive area 100, in addition to the pixel opening 151, also has a first light-transmitting opening 1911. Before exposure and development, the color resist layer corresponding to the filter unit only fills the color resist opening 1912 in the non-photosensitive area 200, while the color resist layer corresponding to the filter unit fills both the color resist opening 1912 and the first light-transmitting opening 1911 in the photosensitive area 100. This results in the thickness of the filter unit in the photosensitive area 100 being less than the thickness of the filter unit in the non-photosensitive area 200. Consequently, the transmittance of the emitted light in the photosensitive area 100 is greater than that in the non-photosensitive area 200, leading to a color shift in the photosensitive area 100 compared to the non-photosensitive area 200. Under white light, the photosensitive area 100 exhibits red, green, and blue tints compared to the non-photosensitive area 200. Under red light, the brightness of the red subpixels in the photosensitive area 100 is greater than that of the red subpixels in the non-photosensitive area 200. Under blue light, the brightness of the blue subpixels in the photosensitive area 100 is greater than that of the blue subpixels in the non-photosensitive area 200. Under green light, the brightness of the green subpixels in the photosensitive area 100 is greater than that of the green subpixels in the non-photosensitive area 200.

[0091] In addition, during the fabrication of the color filter layer 19, the first filter unit 1921 is usually formed first, followed by the third filter unit 1923, and finally the second filter unit 1922. The flatness of the color resist layer corresponding to the third filter unit 1923 and the second filter unit 1922 will be greatly affected. Since the second filter unit 1922 is formed last, the flatness of the color resist layer corresponding to the second filter unit 1922 and the third filter unit 1923 is most affected. Taking the second filter unit 1922 as an example, a light-shielding portion is formed between two adjacent color resist openings 1912. The light-shielding portion includes a first light-shielding portion 1916 and a second light-shielding portion 1917. The first light-shielding portion 1916 is disposed in the photosensitive area 100, and the second light-shielding portion 1917 is disposed in the non-photosensitive area 200. The thickness of the color resist layer corresponding to the second filter unit 1922 on the first light-shielding portion 1916 is less than the thickness of the color resist layer corresponding to the second filter unit 1922 on the second light-shielding portion 1917. Therefore, the degree of concavity of the second filter unit 1922 in the photosensitive area 100 is less than the degree of concavity of the second filter unit 1922 in the non-photosensitive area 200.

[0092] like Figure 5 and Figure 6As shown, the outgoing light with an incident angle of θ1 is refracted at the edge of the second filter unit 1922 in the non-photosensitive area 200 and enters the eye with an outgoing light angle of θ2. The outgoing light with an incident angle of θ1 is refracted at the edge of the second filter unit 1922 in the photosensitive area 100 and enters the eye with an outgoing light angle of θ2. The height difference d1 between the edge and center of the second filter unit 1922 in the photosensitive area 100 is smaller than that between the edge and center of the second filter unit 1922 in the non-photosensitive area 200. Therefore, compared to the edge of the second filter unit 1922 in the photosensitive area 100, the edge of the second filter unit 1922 in the non-photosensitive area 200 has a greater tilt. Consequently, more light is refracted to exit at a smaller angle. Thus, the light emitted from the photosensitive area 100 at a larger angle is more than that emitted from the non-photosensitive area 200 at a larger angle. Therefore, the brightness difference between the second filter unit 1922 in the photosensitive area 100 and the second filter unit 1922 in the non-photosensitive area 200 further increases at a larger angle. Similarly, the brightness difference between the third filter unit 1923 in the photosensitive area 100 and the third filter unit 1923 in the non-photosensitive area 200 further increases at a larger angle.

[0093] Understandably, for green sub-pixels, the brightness of the photosensitive area 100 at a wide viewing angle is greater than that of the non-photosensitive area 200 at a wide viewing angle. Similarly, for blue sub-pixels, the brightness of the photosensitive area 100 at a wide viewing angle is also greater than that of the non-photosensitive area 200 at a wide viewing angle. The difference in brightness between the photosensitive area 100 and the non-photosensitive area 200 is the largest for green sub-pixels. Therefore, under white light, the green tint of this display panel is more pronounced at a wide viewing angle of 100 compared to a narrower viewing angle. Similarly, the blue tint of this display panel is also more pronounced at a wide viewing angle of 100 compared to a narrower viewing angle, with the green tint at a wide viewing angle of 100 being the most pronounced.

[0094] Based on this, the present invention provides a display panel. For example... Figure 1 , Figure 2 and 7 to Figure 37As shown, the display panel has a photosensitive area 100 and a non-photosensitive area 200. The display panel includes a driving backplate 10, a pixel defining layer 15, a light-shielding layer 191, a first cover layer 182, and a filter layer 192. The pixel defining layer 15 is disposed on one side of the driving backplate 10 and has a pixel opening 151. The light-shielding layer 191 is disposed on the side of the pixel defining layer 15 away from the driving backplate 10 and has a first light-transmitting opening 1911 located in the photosensitive area 100. The first cover layer 182 is disposed between the pixel defining layer 15 and the light-shielding layer 191 and has a first light-transmitting opening 1911 located in the photosensitive area 100. The first cover layer 182 is disposed between the pixel defining layer 15 and the light-shielding layer 191 and has a first light-transmitting opening 1911 located in the photosensitive area 100. A first groove 1821 is located in the non-photosensitive area 200 and is covered by a light-shielding layer 191. A filter layer 192 is disposed between the first cover layer 182 and the light-shielding layer 191 or on the side of the light-shielding layer 191 away from the driving back plate 10. The filter layer 192 includes multiple filter units of different colors. The orthographic projection of the filter units on the driving back plate 10 covers the orthographic projection of the pixel opening 151 on the driving back plate 10. The orthographic projections of the first light-transmitting opening 1911 and the first groove 1821 on the driving back plate 10 are disposed between the orthographic projections of two adjacent filter units on the driving back plate 10.

[0095] The filter layer 192 includes multiple filter units of different colors. The light-shielding layer 191 is provided with a first light-transmitting opening 1911, which is located in the photosensitive area 100. The first cover layer 182 is provided with a first groove 1821, which is located in the non-photosensitive area 200. The orthographic projection of the first light-transmitting opening 1911 and the first groove 1821 on the drive back plate 10 is located between the orthographic projections of two adjacent filter units on the drive back plate 10. When fabricating the color filter layer 19, the filter layer 192 fills the first groove 1821 and the first light-transmitting opening 1911 simultaneously before exposure and development. This can reduce or eliminate the leveling difference between the filter layer 192 around the first groove 1821 and the filter layer 192 around the first light-transmitting opening 1911. This ensures that the thickness and flatness of the filter units in the photosensitive area 100 and the non-photosensitive area 200 are consistent before and after exposure and development, thus avoiding color shift between the photosensitive area 100 and the non-photosensitive area 200.

[0096] The display panel involved in the embodiments of this utility model will be described in detail below with reference to specific examples.

[0097] like Figure 1 , Figure 2 and Figure 7 As shown, a display panel may generally include a substrate 11 and a driving circuit layer 13. The driving circuit layer 13 is disposed on one side of the substrate 11. The display panel may also include a buffer layer 12, which is disposed between the substrate 11 and the driving circuit layer 13.

[0098] The substrate 11 can be an inorganic material or an organic material. For example, in one embodiment of this invention, the substrate 11 can be made of glass materials such as soda-lime glass, quartz glass, or sapphire glass, or it can be made of metal materials such as stainless steel, aluminum, or nickel.

[0099] In another embodiment of the present invention, the substrate 11 may also be a flexible substrate 11, for example, the material of the substrate 11 may be polyimide (PI). The substrate 11 may also be a composite of multiple materials. For example, in one embodiment of the present invention, the substrate 11 may include a bottom film, a pressure-sensitive adhesive layer, a first polyimide layer and a second polyimide layer stacked sequentially.

[0100] The driving circuit layer 13 is provided with a driving circuit for driving the light-emitting unit 162. The driving circuit is located in the display area, and any driving circuit can include a transistor, which can be a thin-film transistor (TFT). The TFT can be selected from top-gate TFTs, bottom-gate TFTs, or dual-gate TFTs. Taking a top-gate TFT as an example, the driving circuit layer 13 may include a first active layer 131, a first gate insulating layer 1321, a first gate 1331 layer, a second gate insulating layer 1322, a second gate 1332 layer, and a first source / drain metal layer, sequentially disposed along a direction away from the substrate 11, wherein:

[0101] The first active layer 131 is disposed on one side of the substrate 11. The material of the first active layer 131 can be amorphous silicon semiconductor material, low-temperature polycrystalline silicon semiconductor material, metal oxide semiconductor material, organic semiconductor material, or other types of semiconductor material. Therefore, the thin film transistor can be an N-type thin film transistor or a P-type thin film transistor. The first active layer 131 may include a channel region and two doped regions of different doping types located on both sides of the channel region.

[0102] The first gate insulating layer 1321 is disposed on the side of the active layer 131 away from the substrate 11. The first gate insulating layer 1321 can cover the active layer 131 and the substrate 11. The first gate 1331 layer can include the first gate 1331. The first gate 1331 is disposed on the side of the first gate insulating layer 1321 away from the substrate 11 and is directly opposite to the active layer 131. That is, the projection of the first gate 1331 on the substrate 11 is located within the projection range of the active layer 131 on the substrate 11. For example, the projection of the first gate 1331 on the substrate 11 coincides with the projection of the channel region of the active layer 131 on the substrate 11. The second gate insulating layer 1322 is disposed on the side of the first gate 1331 away from the substrate 11. The second gate insulating layer 1322 can cover the first gate 1331 and the first gate insulating layer 1321. The second gate 1332 layer can include the second gate 1332, which is disposed on the side of the second gate insulating layer 1322 away from the substrate 11 and is directly opposite the active layer 131. The materials of the first gate insulating layer 1321 and the second gate insulating layer 1322 are both insulating materials such as silicon oxide.

[0103] The thin-film transistor may further include an interlayer dielectric layer 134, which is disposed on the side of the second gate 1332 away from the substrate 11, and may cover the second gate 1332 and the second gate insulating layer 1322. A first source / drain metal layer is disposed on the surface of the interlayer dielectric layer 134 away from the substrate 11, and may include a first source 135 and a drain 136, which are connected to the first active layer 131. For example, the first source 135 and the drain 136 are respectively connected to two doped regions of the corresponding first active layer 131 through vias. A protective layer 137 may also be provided on the side of the first source 135 away from the substrate 11, and the protective layer 137 covers the first source 135 and the drain 136. The driving circuit layer 13 may also include a planarization layer group 139, which includes a first planarization layer 1391. The first planarization layer 1391 is disposed on the side of the protective layer 137 away from the substrate 11, and the first planarization layer 1391 covers the protective layer 137.

[0104] The driving circuit layer 13 may further include a second source / drain metal layer, which is disposed on the side of the first planarization layer 1391 away from the substrate 11. The second source / drain metal layer may include a second source 138, which is connected to the first source 135. The planarization layer group 139 may further include a second planarization layer 1392, which is disposed on the side of the second source 138 away from the substrate 11. The second planarization layer 1392 covers the second source 138 and the first planarization layer 1391.

[0105] The display panel may further include a pixel defining layer 15 and a light-emitting layer 16. The pixel defining layer 15 is disposed on the side of the first planarization layer 1391 or the second planarization layer 1392 away from the array substrate. The pixel defining layer 15 includes a plurality of pixel defining portions, and a pixel opening 151 is formed between two adjacent pixel defining portions. The light-emitting layer 16 may include a plurality of light-emitting units 162, which are respectively disposed in different pixel openings 151. Each light-emitting unit 162 may include a pixel electrode 161, a light-emitting unit 162, and a common electrode 163. The pixel electrode 161 is located on the surface of the first planarization layer 1391 or the second planarization layer 1392 away from the substrate 11. The light-emitting unit 162 is disposed on the surface of the pixel electrode 161 away from the substrate 11, and the common electrode 163 is disposed on the surface of the light-emitting unit 162 away from the substrate 11. The light-emitting unit 162 can be driven to emit light through the pixel electrode 161 and the common electrode 163 to display an image.

[0106] Pixel electrode 161 is connected to either the first source 135 or the second source 138. A pixel defining layer 15 is provided on the side of pixel electrode 161 away from the substrate 11. When the thin-film transistor includes only the first source 135, pixel electrode 161 is connected to the first source 135, and pixel defining layer 15 covers pixel electrode 161 and the first planarization layer 1391. When the thin-film transistor also includes the second source 138, pixel electrode 161 is connected to the second source 138, and pixel defining layer 15 covers pixel electrode 161 and the second planarization layer 1392.

[0107] The common electrode 163 can serve as the cathode, and the pixel electrode 161 can serve as the anode. Light emission from the light-emitting unit 162 can be driven by applying a signal to the pixel electrode 161; the specific light emission principle will not be detailed here. The light-emitting unit 162 may contain an electroluminescent organic light-emitting material and can be formed using processes such as vapor deposition. For example, the light-emitting unit 162 may include a hole injection layer, a hole transport layer, a light generation layer, an electron transport layer, and an electron injection layer sequentially stacked on the pixel electrode 161. It should be noted that the light-emitting unit 162 may include a red light-emitting unit 1621, a green light-emitting unit 1622, and a blue light-emitting unit 1623, depending on the emitted color.

[0108] Furthermore, the display panel of this invention may also include an encapsulation layer 17, which is disposed on the side of the light-emitting layer 16 away from the substrate 11, thereby covering the light-emitting layer 16 and preventing water and oxygen corrosion. The encapsulation layer 17 may be a single-layer or multi-layer structure, and the material of the encapsulation layer 17 may include organic or inorganic materials, without special limitations.

[0109] In this embodiment, the encapsulation layer 17 may include a first inorganic encapsulation layer 171, an organic encapsulation layer 172, and a second inorganic encapsulation layer 173. The first inorganic encapsulation layer 171 is disposed on the side of the light-emitting layer 16 away from the substrate 11, the organic encapsulation layer 172 is disposed on the side of the first inorganic encapsulation layer 171 away from the substrate 11, and the second inorganic encapsulation layer 173 is disposed on the side of the organic encapsulation layer 172 away from the substrate 11.

[0110] like Figure 7 As shown, the display panel also includes a touch control layer 18. The touch control layer 18 can be a mutual capacitance touch control layer. The touch control layer 18 may include a first touch electrode layer 181 and a first cover layer 182. The first touch electrode layer 181 is disposed on the side of the encapsulation layer 17 away from the substrate 11, and the first cover layer 182 is disposed on the side of the first touch electrode layer 181 away from the substrate 11. The first touch electrode layer 181 may include a plurality of first touch units 1811, which are spaced apart. The orthographic projection of the first touch unit 1811 on the substrate 11 is located between the orthographic projections of two adjacent light-emitting units 162 on the substrate 11. The first cover layer 182 covers the plurality of first touch units 1811. The touch control layer 18 may further include a second touch electrode layer 183 and a touch insulating layer 184. The second touch electrode layer 183 is disposed between the encapsulation layer 17 and the first touch electrode layer 181, and the touch insulating layer 184 is disposed between the second touch electrode layer 183 and the first touch electrode layer 181. The first touch electrode layer 181 may be a metal mesh layer (MM), and the second touch electrode layer 183 may be a bridge metal layer (BM). Alternatively, the first touch electrode layer 181 may be a bridge metal layer, and the second touch electrode layer 183 may be a metal mesh layer.

[0111] The display panel may further include a color filter layer 19 and a second cover layer 20. The color filter layer 19 includes a light-shielding layer 191 and a light-filtering layer 192. The light-shielding layer 191 may be disposed on the side of the first cover layer 182 away from the substrate 11. The light-shielding layer 191 also has a color resist opening 1912. The orthographic projection of the color resist opening 1912 on the driving backplate 10 is located within the orthographic projection of the pixel opening 151 on the driving backplate 10. The light-filtering layer 192 may be disposed on the side of the light-shielding layer 191 away from the substrate 11. The light-filtering layer 192 includes multiple light-filtering units of different colors. The multiple light-filtering units of different colors include a first light-filtering unit 1921, a second light-filtering unit 1922, and a third light-filtering unit 1923. The color of the first light-filtering unit 1921 is red, the color of the second light-filtering unit 1922 is green, and the color of the third light-filtering unit 1923 is blue. Multiple filter units of different colors are respectively disposed in different color resist openings 1912. The filter units extend from the side of the first cover layer 182 away from the driving back plate 10 to the side of the light shielding layer 191 away from the driving back plate 10. The second cover layer 20 is disposed on the side of the filter layer 192 away from the substrate 11.

[0112] Pixel aperture 151 includes a first pixel aperture 1511, a second pixel aperture 1512, and a third pixel aperture 1513. A red light-emitting unit 1621 is disposed within the first pixel aperture 1511, a green light-emitting unit 1622 is disposed within the second pixel aperture 1512, and a blue light-emitting unit 1623 is disposed within the third pixel aperture 1513. Color resist aperture 1912 includes a first color resist aperture 1913, a second color resist aperture 1914, and a third color resist aperture 1915. A first filter unit 1921 is disposed within the first color resist aperture 1913, a second filter unit 1922 is disposed within the second color resist aperture 1914, and a third filter unit 1923 is disposed within the third color resist aperture 1915. The orthographic projection of the first pixel opening 1511 on the substrate 11 is located within the orthographic projection of the first color resist opening 1913 on the substrate 11. The orthographic projection of the second pixel opening 1512 on the substrate 11 is located within the orthographic projection of the second color resist opening 1914 on the substrate 11. The orthographic projection of the third pixel opening 1513 on the substrate 11 is located within the orthographic projection of the third color resist opening 1915 on the substrate 11.

[0113] To achieve screen brightness adjustment, the display panel typically includes a photosensitive area 100 and a non-photosensitive area 200. The photosensitive area 100 usually has a light sensor on the side of the substrate 11 away from the buffer layer 12. Figure 7(Not shown in the image). To ensure that ambient light can reach the light sensor, the light-shielding layer 191 is further provided with a first light-transmitting opening 1911, and the pixel defining layer 15 is further provided with a fourth light-transmitting opening 152. The first light-transmitting opening 1911 and the fourth light-transmitting opening 152 are located in the photosensitive area 100. The first light-transmitting opening 1911 is located between two adjacent color resist openings 1912, and the fourth light-transmitting opening 152 is located between two adjacent pixel openings 151. The orthographic projection of the first light-transmitting opening 1911 on the driving backplate 10 is located within the orthographic projection of the fourth light-transmitting opening 152 on the driving backplate 10. Ambient light passes through the first light-transmitting opening 1911 and the fourth light-transmitting opening 152 in sequence and enters the light sensor.

[0114] See Figure 2 A light-shielding portion is formed between two adjacent color resist openings 1912. The light-shielding portion includes a first light-shielding portion 1916 and a second light-shielding portion 1917. The first light-shielding portion 1916 is located in the photosensitive area 100, and the second light-shielding portion 1917 is located in the non-photosensitive area 200. The first light-shielding portion 1916 has a first light-transmitting opening 1911. The orthographic projection of the first touch unit 1811 on the substrate 11 is located on both sides of the orthographic projection of the first light-transmitting opening 1911 on the substrate 11. Figure 8 and Figure 9 As shown, in order to reduce or eliminate the leveling difference between the photosensitive area 100 and the non-photosensitive area 200 of the color resist layer before exposure and development, a first groove 1821 is provided on the first cover layer 182. The first groove 1821 is located in the non-photosensitive area 200, while the first cover layer 182 in the photosensitive area 100 is a whole layer without patterning.

[0115] like Figure 10 and Figure 11As shown, the filter layer 192 has m×n groups of filter units. The m groups of filter units extend along a first direction and are arranged along a second direction, while the n groups of filter units extend along the second direction and are arranged along the first direction. The filter units in the same m group are divided into two rows, which are arranged alternately. One row consists of alternating first filter units 1921 and third filter units 1923, and the other row consists of second filter units 1922. The second filter unit is located between the first filter unit 1921 and the third filter unit 1923 along the first direction. The filter units extend along the second direction and are arranged along the first direction. The same n groups of filter units are divided into two columns, which are arranged alternately. One column consists of alternating first filter units 1921 and third filter units 1923, while the other column consists of second filter units 1922. The second filter units 1922 are located between the first filter units 1921 and third filter units 1923 along the second direction. The first light-transmitting opening 1911 and the first groove 1821 are located between adjacent second filter units 1922 along the first direction. Alternatively, the first or third filter units can be arranged in the same row along the first direction, and the first light-transmitting opening 1911 and the first groove 1821 can be located between adjacent first filter units 1921 or 1923 along the first direction, thus improving the reddish or bluish tint of the photosensitive area 100 compared to the non-photosensitive area 200.

[0116] The orthographic projection of the first groove 1821 onto the substrate 11 is polygonal or circular. In this embodiment, the orthographic projection of the first groove 1821 onto the substrate 11 can be rectangular. The shape of the orthographic projection of the first groove 1821 onto the substrate 11 can be the same as the shape of the orthographic projection of the first light-transmitting opening 1911 onto the substrate 11, or the shape of the orthographic projection of the first groove 1821 onto the substrate 11 can be different from the shape of the orthographic projection of the first light-transmitting opening 1911 onto the substrate 11.

[0117] The edge of the orthographic projection of the filter unit on the substrate 11 is located outside the edge of the orthographic projection of the color resist opening 1912 on the substrate 11. The first touch electrode layer 181 includes a plurality of first touch units 1811, and the orthographic projection of the touch grid 1812 on the substrate 11 is located outside the orthographic projection of the filter unit on the substrate 11. A first touch opening 1814 is formed in the photosensitive area 100, and the orthographic projection of the first light-transmitting opening 1911 on the substrate 11 is located within the orthographic projection of the first touch opening 1814 on the substrate 11. In the non-photosensitive area 200, the first touch unit 1811 shared between two adjacent touch grids 1812 along the first direction is located in the first groove 1821. The position of the first groove 1821 relative to the surrounding color resist openings 1912 is the same as the position of the first light-transmitting hole relative to the surrounding color resist openings 1912.

[0118] like Figure 12 As shown, the first groove 1821 penetrates the first cover layer 182 and exposes the encapsulation layer 17. The first cover layer 182 is not patterned in the photosensitive area 100 and covers the entire surface. The first touch unit 1811 is disposed in the first groove 1821, and the second light-shielding part 1917 is disposed in the first groove 1821. The second light-shielding part 1917 covers the encapsulation layer 17 and the first touch unit 1811. The second light-shielding part 1917 extends along the sidewall of the first groove 1821 to the side of the first cover layer 182 away from the substrate 11. The side of the second light-shielding part 1917 away from the substrate 11 forms a second groove 1918. The volume of the first light-transmitting opening 1911 is the same as the volume of the first groove 1821. When fabricating the color filter layer 19, the filter layer 192 simultaneously fills the first groove 1821 and the first light-transmitting opening 1911 before exposure and development. This reduces the leveling difference between the filter layer 192 around the first groove 1821 and around the first light-transmitting opening 1911, ensuring that the thickness and flatness of the filter units in the photosensitive area 100 and the non-photosensitive area 200 are consistent before and after exposure and development. Since the filter layer 192 is located on the side of the light-shielding layer 191 away from the substrate 11, the filter layer 192 is fabricated after the light-shielding layer 191. To completely eliminate the leveling difference between the filter layer 192 around the first groove 1821 and around the first light-transmitting opening 1911, the volume of the first light-transmitting opening 1911 can be set to be the same as the volume of the second groove 1918.

[0119] like Figures 13 to 15 As shown, with Figures 7 to 11 The difference lies in that, in addition to the area in the photosensitive area 100 forming the first touch opening 1814, two second connecting portions 1815 are provided between two adjacent touch grids 1812 in the non-photosensitive area 200 along the first direction. The two second connecting portions 1815 are spaced apart in the second direction, connecting the two adjacent touch grids 1812. The two first connecting portions 1813 and the two touch grids 1812 form the second touch opening 1816. The orthographic projection of the first groove 1821 on the substrate 11 is located within the orthographic projection of the second touch opening 1816 on the substrate 11. The first touch units 1811 at the edges of the two touch grids 1812 are located on both sides of the first groove 1821 along the first direction, and the two second connecting portions 1815 are located on both sides of the first groove 1821 along the second direction.

[0120] The first touch unit 1811 is disposed on both sides of the first groove 1821, and the distance between the edge of the first touch unit 1811 and the edge of the first groove 1821 is greater than or equal to 0 μm. The second light-shielding portion 1917 is disposed within the first groove 1821, and the second light-shielding portion 1917 extends from the side of the encapsulation layer 17 away from the substrate 11 to the side of the first cover layer 182 away from the substrate 11. This avoids the second light-shielding portion 1917 from separating from the first touch unit 1811, and avoids the second light-shielding portion 1917 from affecting the touch performance of the touch control layer 18, thereby better avoiding reliability risks of the display panel.

[0121] like Figure 16 As shown, with Figure 12 The difference lies in that the depth of the first groove 1821 is less than the thickness of the first cover layer 182. The first touch unit 1811 is disposed between the first cover layer 182 and the encapsulation layer 17. The orthographic projection of the first touch unit 1811 on the substrate 11 lies within the orthographic projection of the first groove 1821 on the substrate 11. The second light-shielding part 1917 is disposed within the first groove 1821 and extends from the bottom of the first groove 1821 to the side of the first cover layer 182 away from the substrate 11. In this embodiment, the first groove 1821 is a semi-groove, and the second light-shielding part 1917 does not directly contact the first touch unit 1811, which can better avoid reliability risks. Since the depth of the first groove 1821 is reduced, in order to ensure that the volume of the first groove 1821 is consistent with the volume of the first light-transmitting opening 1911, the area of ​​the orthographic projection of the first groove 1821 on the substrate 11 in this embodiment is greater than... Figure 12 The area of ​​the first groove 1821 projected onto the substrate 11.

[0122] like Figure 17 and Figure 18 As shown, with Figure 1 and Figure 2 The difference is that, Figure 18 for Figure 17 Sectional view A3-A3, Figure 18 The first filter unit 1921 and the second filter unit 1922 of the photosensitive area 100 can be shown. For example... Figure 19 As shown, in Figure 10 Based on this, the first cover layer 182 is provided with a second light-transmitting opening 1822. The second light-transmitting opening 1822 is located in the non-photosensitive area 100. The orthogonal projection of the second light-transmitting opening 1822 on the substrate 11 is located within the orthogonal projection of the second pixel opening 1512 on the substrate 11. Therefore, the second light-transmitting opening 1822 is located between two adjacent first grooves 1821 along the first direction. Figure 20As shown. The orthographic projection of the end of the second pixel opening 1512 near the substrate 11 onto the substrate 11 is the first orthographic projection; the orthographic projection of the end of the second light-transmitting opening 1822 near the substrate 11 onto the substrate 11 is the second orthographic projection; the orthographic projection of the second color resist opening 1914 onto the substrate 11 is the fourth orthographic projection. The edge of the second orthographic projection is between the edge of the first orthographic projection and the edge of the fourth orthographic projection. The distance between the second orthographic projection and the first orthographic projection is 0–3 μm. Figure 21 As shown.

[0123] like Figure 22 As shown, the angle between the side of the second light-transmitting opening 1822 and the side of the first cover layer 182 near the substrate 11 is 45-75 degrees. The second filter unit 1922 fills the second light-transmitting opening 1822 and overlaps the side of the first cover layer 182 away from the substrate 11. The refractive index of the second filter unit 1922 is greater than that of the first cover layer 182; specifically, the refractive index of the first cover layer 182 is 1.45-1.5, and the refractive index of the second filter unit 1922 is greater than or equal to 1.6. As can be seen from the optical path diagram, the light emitted from the green light-emitting unit 1622 at an oblique angle undergoes total internal reflection at the interface between the side of the first groove 1821 and the side of the second filter unit 1922, improving the light extraction efficiency at a normal angle and reducing the difference in luminance between the green sub-pixels in the photosensitive area 100 and the green sub-pixels in the non-photosensitive area 200. Figure 22 In this case, the depth of the first groove 1821 can be less than the depth of the first cover layer 182. For example... Figure 23 As shown, the first groove 1821 can also penetrate the first cover layer 182, exposing the encapsulation layer 17.

[0124] Alternatively, the first filter unit 1921 can be filled within the second light-transmitting opening 1822 and overlapped with the side of the first cover layer 182 away from the substrate 11. The refractive index of the first filter unit 1921 can be set to be greater than that of the first cover layer 182, thereby reducing the difference in luminance between the red sub-pixels of the photosensitive area 100 and the red sub-pixels of the non-photosensitive area 200, and improving the reddish tint of the photosensitive area 100 compared to the non-photosensitive area 200. Conversely, the third filter unit 1923 can be filled within the second light-transmitting opening 1822 and overlapped with the side of the first cover layer 182 away from the substrate 11. The refractive index of the third filter unit 1923 can be set to be greater than that of the first cover layer 182, thereby reducing the difference in luminance between the blue sub-pixels of the photosensitive area 100 and the blue sub-pixels of the non-photosensitive area 200, and improving the bluish tint of the photosensitive area 100 compared to the non-photosensitive area 200.

[0125] like Figure 24 As shown, in Figure 10Based on this, a third light-transmitting opening 1823 is provided on the first cover layer 182, and a refractive part 1824 is provided inside the third light-transmitting opening 1823. The orthogonal projection of the refractive part 1824 on the substrate 11 is located within the orthogonal projection of the second pixel opening 1512 on the substrate 11. The first groove 1821 is located between two adjacent third light-transmitting openings 1823 along the first direction, such as... Figure 25 As shown. The orthographic projection of the end of the second pixel opening 1512 near the substrate 11 onto the substrate 11 is the first orthographic projection; the orthographic projection of the end of the refractive portion 1824 near the substrate 11 onto the substrate 11 is the third orthographic projection; the orthographic projection of the second color resist opening 1914 onto the substrate 11 is the fourth orthographic projection; the two edges of the third orthographic projection are located between the edges of the second and fourth orthographic projections; the distance between the third orthographic projection and the first orthographic projection is 0–3 μm. Figure 26 As shown.

[0126] like Figure 27 As shown, the angle between the side of the refractive portion 1824 and the side of the first cover layer 182 near the substrate 11 is 65 to 85 degrees. The refractive portion 1824 and the edge of the third light-transmitting opening 1823 form a gap 1825. The second filter unit 1922 is disposed on the side of the first cover layer 182 and the refractive portion 1824 away from the substrate 11. The second filter unit 1922 completely covers the boss and fills the gap 1825. The refractive index of the second filter unit 1922 is less than the refractive index of the refractive portion 1824. Specifically, the refractive index of the refractive portion 1824 can be 1.7 to 1.8, and the refractive index of the second filter unit 1922 is less than or equal to 1.6.

[0127] As can be seen from the optical path diagram, the light emitted from the green light-emitting unit 1622 at an oblique angle is refracted at the interface between the side of the refractive part 1824 and the side of the second filter unit 1922, which improves the light extraction efficiency at a normal angle and reduces the difference in luminance between the green sub-pixels in the non-photosensitive area 200 and the green sub-pixels in the photosensitive area 100. Figure 27 In this case, the depth of the first groove 1821 can be less than the depth of the first cover layer 182. For example... Figure 28 As shown, the first groove 1821 can also penetrate the first cover layer 182, exposing the encapsulation layer 17.

[0128] Alternatively, the first filter unit 1921 can completely cover the protrusion and fill the gap 1825. The refractive index of the first filter unit 1921 is less than that of the refractive portion 1824, thereby reducing the difference in luminance between the red sub-pixels of the photosensitive area 100 and the red sub-pixels of the non-photosensitive area 200, and improving the reddish tint of the photosensitive area 100 compared to the non-photosensitive area 200. Conversely, the third filter unit 1923 can completely cover the protrusion and fill the gap 1825. The refractive index of the third filter unit 1923 is less than that of the refractive portion 1824, thereby reducing the difference in luminance between the blue sub-pixels of the photosensitive area 100 and the blue sub-pixels of the non-photosensitive area 200, and improving the bluish tint of the photosensitive area 100 compared to the non-photosensitive area 200.

[0129] like Figure 29 As shown, in Figure 15 Based on this, the first cover layer 182 is provided with a second light-transmitting opening 1822, and the orthographic projection of the second light-transmitting opening 1822 on the substrate 11 is located within the orthographic projection of the second pixel opening 1512 on the substrate 11. Figure 30 As shown, in Figure 15 Based on this, a third light-transmitting opening 1823 is provided on the first cover layer 182, and a refractive part 1824 is provided inside the third light-transmitting opening 1823. The orthogonal projection of the refractive part 1824 on the substrate 11 is located within the orthogonal projection of the second pixel opening 1512 on the substrate 11.

[0130] like Figures 7 to 30 As shown, the filter layers 192 are all disposed on the side of the light-shielding layer 191 away from the substrate 11. Multiple filter units of different colors are respectively disposed within different color-blocking openings 1912. The filter units extend from the side of the first cover layer 182 away from the substrate 11 to the side of the light-shielding layer 191 away from the substrate 11. Figure 31 and Figure 32 As shown, with Figure 2 and Figure 27 The difference lies in that the filter layers 192 are all disposed between the first cover layer 182 and the light-shielding layer 191. Multiple filter units of different colors are spaced apart on the side of the first cover layer 182 away from the substrate 11, and the light-shielding layer 191 is disposed on the side of the filter units away from the substrate 11. The color blocking opening 1912 exposes the filter units. In this case, the filter layer 192 is formed after the first cover layer 182. At this time, the volume of the first groove 1821 is equal to the volume of the first light-transmitting opening 1911, which can completely eliminate the leveling difference of the filter layer 192 around the first groove 1821 and around the first light-transmitting opening 1911.

[0131] You can also Figure 12 The positions of the intermediate light-shielding layer 191 and the light-filtering layer 192 are interchanged, that is... Figure 12 The light-shielding layer 191 is disposed on the side of the light-filtering layer 192 away from the substrate 11. Alternatively, the light-shielding layer 191 can be disposed on the side of the light-filtering layer 192 away from the substrate 11. Figure 15 The positions of the intermediate light-shielding layer 191 and the light-filtering layer 192 are interchanged, that is... Figure 15 The intermediate light-shielding layer 191 is disposed on the side of the light-filtering layer 192 away from the substrate 11. Alternatively, [the following can be added]... Figure 16 The positions of the intermediate light-shielding layer 191 and the light-filtering layer 192 are interchanged, that is... Figure 16 The intermediate light-shielding layer 191 is disposed on the side of the light-filtering layer 192 away from the substrate 11. Alternatively, [the following can be added]... Figure 22 The positions of the intermediate light-shielding layer 191 and the light-filtering layer 192 are interchanged, that is... Figure 22 The intermediate light-shielding layer 191 is disposed on the side of the light-filtering layer 192 away from the substrate 11. Alternatively, [the following can be added]... Figure 23 The positions of the intermediate light-shielding layer 191 and the light-filtering layer 192 are interchanged, that is... Figure 23 The intermediate light-shielding layer 191 is disposed on the side of the light-filtering layer 192 away from the substrate 11. Alternatively, [the following can be added]... Figure 28 The positions of the intermediate light-shielding layer 191 and the light-filtering layer 192 are interchanged, that is... Figure 28 The intermediate light-shielding layer 191 is disposed on the side of the light-filtering layer 192 away from the substrate 11. Alternatively, [the following can be added]... Figure 29 The positions of the intermediate light-shielding layer 191 and the light-filtering layer 192 are interchanged, that is... Figure 29 The intermediate light-shielding layer 191 is disposed on the side of the light-filtering layer 192 away from the substrate 11. Alternatively, [the following can be added]... Figure 30 The positions of the intermediate light-shielding layer 191 and the light-filtering layer 192 are interchanged, that is... Figure 31 The light-shielding layer 191 is disposed on the side of the filter layer 192 away from the substrate 11.

[0132] This utility model provides a display panel. For example... Figures 33 to 36As shown, the display panel has a photosensitive area 100 and a non-photosensitive area 200. The display panel includes a driving backplate 10, a pixel defining layer 15, a light-shielding layer 191, a first cover layer 182, and a filter layer 192. The pixel defining layer 15 is disposed on one side of the driving backplate 10 and has a pixel opening 151. The light-shielding layer 191 is disposed on the side of the pixel defining layer 15 away from the driving backplate 10 and has a first light-transmitting opening 1911. The first light-transmitting opening 1911 is located in the photosensitive area 100, and its orthographic projection on the driving backplate 10 is located between the orthographic projections of adjacent pixel openings 151 on the driving backplate 10. The first cover layer 182 is disposed between the pixel defining layer 15 and the light-shielding layer. Between 191, the first cover layer 182 is provided with a second light-transmitting opening 1822. The orthographic projection of the second light-transmitting opening 1822 on the driving back plate 10 is located within the orthographic projection of the pixel opening 151 on the driving back plate 10. The second light-transmitting opening 1822 is located in the non-photosensitive area 200. The angle between the side of the second light-transmitting opening 1822 and the side of the first cover layer 182 near the driving back plate 10 is 45 to 75 degrees. The filter layer 192 is provided between the first cover layer 182 and the light-shielding layer 191 or on the side of the light-shielding layer 191 away from the driving back plate 10. The filter layer 192 includes a plurality of filter units, which are filled in the second light-transmitting opening 1822. The refractive index of the filter units is greater than that of the first cover layer 182.

[0133] The filter unit within the second light-transmitting opening 1822 can be the second filter unit 1922. As can be seen from the optical path diagram, the light emitted from the green light-emitting unit 1622 at an oblique angle undergoes total internal reflection at the interface between the side of the first groove 1821 and the side of the second filter unit 1922, which improves the light extraction efficiency at a normal angle. This reduces the difference in luminance between the green sub-pixels of the photosensitive area 100 and the green sub-pixels of the non-photosensitive area 200, thereby reducing or eliminating the phenomenon that the photosensitive area 100 is greener than the non-photosensitive area 200.

[0134] This utility model provides a display panel. For example... Figures 37 to 40As shown, the display panel has a photosensitive area 100 and a non-photosensitive area 200. The display panel includes a driving backplate 10, a pixel defining layer 15, a light-shielding layer 191, a first cover layer 182, and a filter layer 192. The pixel defining layer 15 is disposed on one side of the driving backplate 10 and has a pixel opening 151. The light-shielding layer 191 is disposed on the side of the pixel defining layer 15 away from the driving backplate 10 and has a first light-transmitting opening 1911. The first light-transmitting opening 1911 is located in the photosensitive area 100, and its orthographic projection on the driving backplate 10 lies between the orthographic projections of adjacent pixel openings 151 on the driving backplate 10. The first cover layer 182 is disposed on... Between the pixel defining layer 15 and the light-shielding layer 191, a third light-transmitting opening 1823 is provided on the first cover layer 182, and a refractive part 1824 is provided inside the third light-transmitting opening 1823. The angle between the side of the refractive part 1824 and the side of the first cover layer 182 near the driving back plate 10 is 65 to 85 degrees, and a gap 1825 is formed between the refractive part 1824 and the edge of the third light-transmitting opening 1823. A filter layer 192 is provided between the first cover layer 182 and the light-shielding layer 191 or on the side of the light-shielding layer 191 away from the driving back plate 10. The filter layer 192 includes a plurality of filter units, which fill the gap 1825. The refractive index of the filter units is less than the refractive index of the refractive part 1824.

[0135] The filter unit within the second light-transmitting opening 1822 can be the second filter unit 1922. As can be seen from the optical path diagram, the light emitted from the green light-emitting unit 1622 at an oblique angle is refracted at the interface between the side of the refractive part 1824 and the side of the second filter unit 1922, which improves the light emission efficiency at a normal angle. This can reduce the difference in luminance between the green sub-pixels of the photosensitive area 100 and the green sub-pixels of the non-photosensitive area 200, thereby reducing or eliminating the phenomenon that the photosensitive area 100 is greener than the non-photosensitive area 200.

[0136] It should be noted that the first direction mentioned above is... Figure 1 , Figure 3 , Figure 8 , Figure 13 , Figure 17 , Figure 19 , Figure 24 , Figure 33 and Figure 37 The x-direction shown in the figure, the second direction mentioned above is Figure 1 , Figure 3 , Figure 8 , Figure 13 , Figure 17 , Figure 19 , Figure 24 , Figure 33 and Figure 37 The y-direction is shown in the figure.

[0137] This invention also provides a display device, which may include the display panel described in any of the above embodiments of this invention. The specific structure and beneficial effects of the display panel have already been described in detail above, and therefore will not be repeated here.

[0138] It should be noted that, in addition to the display panel, the display device also includes other necessary components and parts, such as the casing, circuit board, power cord, etc. Those skilled in the art can make corresponding additions according to the specific usage requirements of the display device, which will not be elaborated here.

[0139] Display devices can also be emerging wearable devices, such as virtual reality and augmented reality devices, or traditional electronic devices, such as mobile phones, computers, televisions, and video recorders. These will not be listed exhaustively here.

[0140] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention described herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the appended claims.

Claims

1. A display panel having a light-sensing region and a non-light-sensing region, characterized in that, The display panel comprises: a driving back plate; a pixel definition layer arranged on one side of the driving back plate, the pixel definition layer being provided with a pixel opening; a light shielding layer arranged on a side of the pixel definition layer away from the driving back plate, the light shielding layer being provided with a first light transmission opening, the first light transmission opening being located in a light sensing area; a first cover layer arranged between the pixel definition layer and the light shielding layer, the first cover layer being provided with a first recess, the first recess being located in a non-light sensing area, the first recess being covered by the light shielding layer; a filter layer arranged between the first cover layer and the light shielding layer or on a side of the light shielding layer away from the driving back plate, the filter layer comprising a plurality of filter units of different colors, a normal projection of the filter unit on the driving back plate covering a normal projection of the pixel opening on the driving back plate, a normal projection of the first light transmission opening and the first recess on the driving back plate being arranged between normal projections of two adjacent filter units on the driving back plate.

2. The display panel of claim 1, wherein, The volume of the first recess is the same as the volume of the first light transmission opening.

3. The display panel of claim 1, wherein, The light shielding layer is further provided with a color resistance opening, a normal projection of the color resistance opening on the driving back plate being located within a normal projection of the pixel opening on the driving back plate, a light shielding part being formed between two adjacent color resistance openings, the light shielding part comprising a first light shielding part and a second light shielding part, the first light shielding part being arranged in the light sensing area, the second light shielding part being arranged in the non-light sensing area, the first light transmission opening being arranged in the first light shielding part, the second light shielding part covering the first recess.

4. The display panel of claim 3, wherein, The display panel further comprises an encapsulation layer and a first touch electrode layer, the encapsulation layer being arranged between the first cover layer and the pixel definition layer, the first touch electrode layer being arranged between the first cover layer and the encapsulation layer, the first touch electrode layer comprising a plurality of first touch units, a normal projection of the second light shielding part on the driving back plate covering a normal projection of the first touch unit on the driving back plate.

5. The display panel of claim 4, wherein, The first recess penetrates through the first cover layer and exposes the encapsulation layer, the first touch unit being arranged in the first recess, the second light shielding part being arranged in the first recess, the second light shielding part covering the encapsulation layer and the first touch unit.

6. The display panel of claim 4, wherein, The first recess penetrates through the first cover layer and exposes the encapsulation layer, the first touch unit being arranged on two sides of the first recess, the second light shielding part being arranged in the first recess, the second light shielding part extending from a side of the encapsulation layer away from the driving back plate to a side of the first cover layer away from the driving back plate.

7. The display panel of claim 4, wherein, The depth of the first recess is smaller than the thickness of the first cover layer, the first touch unit being arranged between the first cover layer and the encapsulation layer, a normal projection of the first touch unit on the driving back plate being located within a normal projection of the first recess on the driving back plate, the second light shielding part being arranged in the first recess, the second light shielding part extending from a bottom of the first recess to a side of the first cover layer away from the driving back plate.

8. The display panel of any one of claims 1 to 7, wherein, The different color filter units include a first filter unit, a second filter unit and a third filter unit, the color of the first filter unit is red, the color of the second filter unit is green, and the color of the third filter unit is blue, the first light transmission opening is arranged between two adjacent second filter units along the first direction, and the orthographic projection of the first groove on the driving back plate is located between the orthographic projections of the two adjacent second filter units on the driving back plate.

9. The display panel of claim 8, wherein, The light filter layer is provided with m*n groups of filter units, m groups of filter units extend along the first direction and are arranged along the second direction, n groups of filter units extend along the second direction and are arranged along the first direction, the filter units of the same m group are divided into two rows, and the two rows of filter units are staggered, one row of filter units are first filter units and third filter units arranged alternately, the other row is second filter units, and the second filter units are located between the first filter units and the third filter units along the first direction; n groups of filter units extend along the second direction and are arranged along the first direction, the filter units of the same n group are divided into two columns, and the two columns of filter units are staggered, one column of filter units are first filter units and third filter units arranged alternately, the other column is second filter units, and the second filter units are located between the first filter units and the third filter units along the second direction, and the first light transmission opening and the first groove are arranged between adjacent second filter units along the first direction or along the second direction.

10. The display panel of claim 8, wherein, The first cover layer is provided with a second light transmission opening, the second light transmission opening is located in the photosensitive area, the included angle between the side surface of the second light transmission opening and the side of the first cover layer close to the driving back plate is 45-75 degrees, the filter units of a certain color are filled in the second light transmission opening and are lapped to the side of the first cover layer away from the driving back plate, and the refractive index of the filter units of a certain color is greater than the refractive index of the first cover layer.

11. The display panel of claim 10, wherein, The second filter units are filled in the second light transmission opening and are lapped to the side of the first cover layer away from the driving back plate, and the refractive index of the second filter units is greater than the refractive index of the first cover layer.

12. The display panel of claim 10, wherein, The refractive index of the first cover layer is 1.45-1.5, and the refractive index of the filter units of a certain color is greater than or equal to 1.

6.

13. The display panel of claim 10, wherein, The orthographic projection of the second light transmission opening on the driving back plate is located in the orthographic projection of the pixel opening on the driving back plate, the orthographic projection of the end of the pixel opening close to the driving back plate on the driving back plate is a first orthographic projection, the orthographic projection of the end of the second light transmission opening close to the driving back plate on the driving back plate is a second orthographic projection, and the distance between the second orthographic projection and the first orthographic projection is 0-3 μm.

14. The display panel of claim 8, wherein, The first cover layer is provided with a third light-transmitting opening, and the third light-transmitting opening is provided with a refracting portion, an angle between a side surface of the refracting portion and a side of the first cover layer close to the driving back plate is 65-85 degrees, the refracting portion and an edge of the third light-transmitting opening form a gap, the filter unit of a certain color is arranged on a side of the first cover layer and the refracting portion away from the driving back plate, the filter unit of a certain color fills the gap, and a refractive index of the filter unit of a certain color is less than a refractive index of the refracting portion.

15. The display panel of claim 14, wherein, The second filter unit is arranged on a side of the first cover layer and the refracting portion away from the driving back plate, the second filter unit fills the gap, and a refractive index of the second filter unit is less than the refractive index of the refracting portion.

16. The display panel of claim 14, wherein, The refractive index of the refracting portion is 1.7-1.8, and the refractive index of the second filter unit of a certain color is less than or equal to 1.

6.

17. The display panel of claim 14, wherein, A normal projection of the refracting portion on the driving back plate is located in a normal projection of the pixel opening on the driving back plate, a normal projection of an end of the pixel opening close to the driving back plate on the driving back plate is a first normal projection, a normal projection of an end of the refracting portion close to the driving back plate on the driving back plate is a third normal projection, and a distance between the third normal projection and the first normal projection is 0-3 microns.

18. The display panel of claim 1, wherein, A normal projection of the first groove on the driving back plate is in a shape of a polygon or a circle.

19. The display panel of claim 4, wherein, A normal projection of the second light-shielding portion on the driving back plate covers a normal projection of the first touch control unit on the driving back plate, and the first touch control unit is arranged on both sides of the first light-transmitting opening.

20. The display panel of claim 3, wherein, The filter layer is arranged on a side of the light-shielding layer away from the driving back plate, a plurality of filter units of different colors are respectively arranged in different color resistance openings, and the filter units extend from a side of the first cover layer away from the driving back plate to a side of the light-shielding layer away from the driving back plate.

21. The display panel of claim 3, wherein, The filter layer is arranged between the first cover layer and the light-shielding layer, a plurality of filter units of different colors are arranged on a side of the first cover layer away from the driving back plate, the light-shielding layer is arranged on a side of the filter units away from the driving back plate, and the color resistance opening exposes the filter unit.

22. The display panel of claim 1, wherein, The pixel defining layer is further provided with a fourth light-transmitting opening, the fourth light-transmitting opening is located in a photosensitive region, the fourth light-transmitting opening is arranged between adjacent two pixel openings, and a normal projection of the first light-transmitting opening on the driving back plate is located in a normal projection of the fourth light-transmitting opening on the driving back plate.

23. A display panel having a light sensitive region and a non-light sensitive region, characterized in that, The display panel comprises: a driving back plate; a pixel defining layer arranged on a side of the driving back plate, the pixel defining layer being provided with a pixel opening; a light-shielding layer arranged on a side of the pixel defining layer away from the driving back plate, the light-shielding layer being provided with a first light-transmitting opening, the first light-transmitting opening being located in a photosensitive region, and a normal projection of the first light-transmitting opening on the driving back plate being located between normal projections of adjacent pixel openings on the driving back plate; A first cover layer is arranged between the pixel defining layer and the light shielding layer, the first cover layer is provided with a second light transmission opening, a projection of the second light transmission opening on the driving backplane is located within a projection of the pixel opening on the driving backplane, the second light transmission opening is located in a non-photosensitive area, and an included angle between a side surface of the second light transmission opening and a side of the first cover layer close to the driving backplane is 45-75 degrees. A filter layer is arranged between the first cover layer and the light shielding layer or on a side of the light shielding layer away from the driving backplane, the filter layer includes a plurality of filter units, the filter units are filled in the second light transmission opening, and a refractive index of the filter units is greater than a refractive index of the first cover layer.

24. A display panel having a light-sensing region and a non-light-sensing region, characterized in that, The display panel includes: a driving backplane; a pixel defining layer arranged on a side of the driving backplane, the pixel defining layer is provided with a pixel opening; a light shielding layer arranged on a side of the pixel defining layer away from the driving backplane, the light shielding layer is provided with a first light transmission opening, the first light transmission opening is located in a photosensitive area, and a projection of the first light transmission opening on the driving backplane is located between projections of adjacent pixel openings on the driving backplane; a first cover layer arranged between the pixel defining layer and the light shielding layer, the first cover layer is provided with a third light transmission opening, the third light transmission opening is provided with a refracting portion, an included angle between a side surface of the refracting portion and a side of the first cover layer close to the driving backplane is 65-85 degrees, and the refracting portion and an edge of the third light transmission opening form a gap; a filter layer arranged between the first cover layer and the light shielding layer or on a side of the light shielding layer away from the driving backplane, the filter layer includes a plurality of filter units, the filter units fill the gap, and a refractive index of the filter units is less than a refractive index of the refracting portion.

25. A display device comprising: The display panel includes any one of claims 1-24.

Images