Display panel and display device

Abstract

The display panel comprises a plurality of first covering parts, a plurality of supporting parts and a plurality of shading parts, the supporting parts are arranged on the sides, away from a driving backboard, of the first covering parts, a supporting gap is formed between every two adjacent supporting parts on the same first covering part, and the shading parts are arranged in the supporting gaps. A light-transmitting opening is formed between the sides, close to each other, of the shading parts. Before the shading block is solidified to form the shading part, due to the supporting effect of the supporting part, the problem that the shading block is stripped from the first covering part in the washing process is avoided, and the shading parts are basically the same in shape and size, so that the light-transmitting openings are good in shape and size uniformity, and the reflectivity of light in the light-transmitting openings is the same; and thus, poor light and shade alternated vertical stripes of the display panel are improved. The invention further provides a display device comprising the display panel.

Description

Technical Field

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

[0002] To improve the contrast of the display panel, a light path control layer can be set on the side of the light-emitting layer away from the driving backplate, thereby improving the light emission efficiency of the display panel at the front viewing angle.

[0003] When the exposure and development process of the light-shielding layer was adjusted, a severe peeling problem occurred on the side of the first cover that was away from the driving back plate. This caused some light-transmitting openings to become larger, and the reflectivity of light in the larger light-transmitting openings increased, resulting in vertical stripes with alternating light and dark on the display panel.

[0004] It should be noted that the information in the background section above is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a display panel and display device.

[0006] According to one aspect of the present invention, a display panel is provided, the display panel including a driving backplate, a pixel defining layer, a plurality of pixel electrodes, a plurality of light-emitting units of different colors, a common electrode, a first cover layer, a filter layer, a support layer, and a light-shielding layer. The pixel defining layer is disposed on one side of the driving backplate and includes a plurality of pixel defining portions, with pixel openings formed between the sides of the pixel defining portions that are close to each other. The plurality of pixel electrodes are respectively disposed in different pixel openings. The plurality of light-emitting units of different colors are respectively disposed on the side of each pixel electrode away from the driving backplate. The common electrode is disposed on the side of the plurality of light-emitting units away from the driving backplate. The first cover layer includes a plurality of first cover portions, the first cover portions being disposed on the side of the common electrode away from the driving backplate, the first cover portions being close to each other. A dimming opening is formed between the sides of the first cover, and the slope angle of the side of the first cover is less than 90 degrees. The filter layer includes filter units of different colors, each filter unit is disposed in a different dimming opening, the filter unit covers the side of the first cover, the orthographic projection of the filter unit on the drive back plate covers the orthographic projection of the light-emitting unit on the drive back plate, and the refractive index of the filter unit is greater than the refractive index of the first cover. The support layer includes multiple support parts, the support parts are disposed on the side of the first cover away from the drive back plate, the support parts are arranged around the dimming opening, and a support gap is formed between two adjacent support parts. The light-shielding layer includes multiple light-shielding parts, the light-shielding parts are disposed in the support gap, the light-shielding parts at least cover the side of the support parts, and a light-transmitting opening is formed between the sides of the light-shielding parts that are close to each other.

[0007] In one embodiment of the present invention, the side of the support portion near the drive back plate is the first support surface, the side of the first cover portion away from the drive back plate is the first cover surface, and the edge of the first support surface near the filter unit is flush with the edge of the first cover surface near the filter unit.

[0008] In one embodiment of the present invention, the angle between the side of the support portion and the side of the support portion near the drive back plate is 30 degrees to 50 degrees.

[0009] In one embodiment of the present invention, the light-shielding portion extends from the side of the support portion to the side of the support portion away from the drive back plate.

[0010] In one embodiment of the present invention, the light-shielding part and the side of the support part away from the drive back plate form an overlapping area, and the width of the overlapping area is more than 0.6 times the width of the side of the support part away from the drive back plate.

[0011] In one embodiment of the present invention, the width of the side of the support portion away from the drive back plate is 3 μm to 5 μm, and the width of the overlapping area between the light-shielding portion and the side of the support portion away from the drive back plate is less than or equal to 3 μm.

[0012] In one embodiment of the invention, the filter unit extends from the side of the first cover to the side of the cover support and at least a portion of the side of the light shield away from the drive back plate.

[0013] In one embodiment of the present invention, the width of the overlapping area between the orthographic projection of the filter unit on the driving back plate and the orthographic projection of the first cover portion on the driving back plate is less than or equal to 6 μm.

[0014] In one embodiment of the present invention, the material of the support portion is different from the material of the first covering portion.

[0015] In one embodiment of the present invention, the material of the support portion is the same as that of the first covering portion, and the support portion and the first covering portion are integrally formed.

[0016] In one embodiment of the present invention, the filter units of different colors include a first filter unit, a second filter unit and a third filter unit, wherein the first filter unit is red, the second filter unit is green and the third filter unit is blue.

[0017] In one embodiment of the present invention, the material of the support portion is the same as the material of the nearest color filter unit.

[0018] In one embodiment of the present invention, the material of the support portion is the same as the material of the first filter unit, the second filter unit, or the third filter unit.

[0019] In one embodiment of the present invention, the side of the support near the drive back plate is flush with the side of the filter unit away from the drive back plate.

[0020] In one embodiment of the present invention, the side of the support portion away from the drive back plate is flush with the side of the filter unit away from the drive back plate.

[0021] In one embodiment of the present invention, the refractive index of the first covering portion is 1.45-1.5, and the refractive index of the filter unit is 1.65-1.75.

[0022] In one embodiment of the present invention, the angle between the side of the first cover and the side of the first cover near the drive back plate is 45 degrees to 85 degrees.

[0023] In one embodiment of the present invention, the distance between the edge of the orthographic projection of the first covering portion on the driving back plate and the edge of the orthographic projection of the pixel defining portion on the driving back plate is less than 3 μm.

[0024] In one embodiment of the present invention, the plurality of light-emitting units of different colors include a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit. The first light-emitting unit is red, the second light-emitting unit is green, and the third light-emitting unit is blue. The orthographic projection of the first filter unit on the driving back panel overlaps with the orthographic projection of the first light-emitting unit on the driving back panel. The orthographic projection of the second filter unit on the driving back panel overlaps with the orthographic projection of the second light-emitting unit on the driving back panel. The orthographic projection of the third filter unit on the driving back panel overlaps with the orthographic projection of the third light-emitting unit on the driving back panel.

[0025] In one embodiment of the present invention, the display panel further includes an encapsulation layer and a first touch control layer. The encapsulation layer is disposed on the side of the common electrode away from the driving backplate. The first touch control layer is disposed between the encapsulation layer and the first cover layer. The first touch control layer includes a plurality of first touch units, which are spaced apart. The first cover portion covers the first touch units, and the orthographic projection of the first touch unit on the driving backplate is located within the orthographic projection of the light-shielding portion on the driving backplate.

[0026] In one embodiment of the present invention, the display panel further includes a second cover layer that covers the side of the light filter unit and the light shield away from the drive back plate.

[0027] According to another aspect of the present invention, a display device is provided, comprising the display panel provided in one aspect of the present invention.

[0028] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the invention. Attached Figure Description

[0029] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention. It is obvious that the drawings described below are merely some embodiments of the invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0030] Figure 1 A cross-sectional schematic diagram of the display panel according to an embodiment of the present invention, wherein the light-shielding part is directly provided on the side of the first covering part away from the substrate.

[0031] Figure 2 A cross-sectional schematic diagram of the display panel involved in this embodiment of the invention, when the dimming opening is formed using the first manufacturing process.

[0032] Figure 3 A cross-sectional schematic diagram of the display panel involved in this embodiment of the invention, when a dimming opening is formed using a second manufacturing process.

[0033] Figure 4 A cross-sectional schematic diagram of a display panel according to an embodiment of the present invention, wherein the light-shielding part is disposed within the support gap and the material of the support part is different from that of the first covering part.

[0034] Figure 5 Another cross-sectional view of the display panel according to an embodiment of the present invention, where the light-shielding part is located within the support gap and the material of the support part is different from that of the first covering part.

[0035] Figure 6 A partial cross-sectional schematic diagram of the display panel according to an embodiment of the present invention, wherein the light-shielding part is provided within the support gap and the material of the support part is different from that of the first covering part.

[0036] Figure 7 A cross-sectional schematic diagram of the display panel according to an embodiment of the present invention, wherein the light-shielding part is disposed within the support gap and the material of the support part is the same as that of the first covering part.

[0037] Figure 8 A partial cross-sectional schematic diagram of the display panel according to an embodiment of the present invention, wherein the light-shielding part is disposed within the support gap and the material of the support part is the same as that of the first covering part.

[0038] Figure 9 A cross-sectional schematic diagram of the display panel according to an embodiment of the present invention, wherein the material of the support portion is the same as the material of the nearest color filter unit, and the side of the support portion away from the substrate is flush with the side of the filter unit away from the substrate.

[0039] Figure 10A partial cross-sectional schematic diagram of the display panel according to an embodiment of the present invention is shown when the material of the support part is the same as the material of the nearest color filter unit, and the side of the support part away from the substrate is flush with the side of the filter unit away from the substrate.

[0040] Figure 11 A cross-sectional schematic diagram of the display panel according to an embodiment of the present invention, wherein the material of the support portion is the same as the material of the nearest color filter unit, and the side of the support portion close to the substrate is flush with the side of the filter unit away from the substrate.

[0041] Figure 12 A partial cross-sectional schematic diagram of the display panel according to an embodiment of the present invention is shown, where the material of the support portion is the same as that of the nearest color filter unit, and the side of the support portion close to the substrate is flush with the side of the filter unit away from the substrate.

[0042] Figure 13 A cross-sectional schematic diagram of the display panel according to an embodiment of the present invention, wherein the material of the support portion is the same as that of the first filter unit, and the side of the support portion near the substrate is flush with the side of the filter unit away from the substrate.

[0043] Figure 14 A cross-sectional schematic diagram of the display panel according to an embodiment of the present invention, wherein the material of the support portion is the same as that of the second filter unit, and the side of the support portion near the substrate is flush with the side of the filter unit away from the substrate.

[0044] Figure 15 A cross-sectional schematic diagram of the display panel according to an embodiment of the present invention, wherein the material of the support part is the same as that of the third filter unit, and the side of the support part near the substrate is flush with the side of the filter unit away from the substrate.

[0045] Figure 16 A plan view of the display panel in this embodiment of the invention, wherein the light-shielding part is located within the support gap, the material of the support part is different from the material of the first covering part, and no filter unit is provided in the dimming opening.

[0046] Figure 17 A planar schematic diagram of a display panel according to an embodiment of the present invention, wherein the light-shielding part is provided in the support gap, the material of the support part is different from the material of the first covering part, and a filter unit is provided in the dimming opening.

[0047] Figure 18 A plan view of the display panel in this embodiment of the invention, wherein the light-shielding part is located within the support gap, the material of the support part is the same as the material of the first covering part, and no filter unit is provided in the dimming opening.

[0048] Figure 19A planar schematic diagram of a display panel according to an embodiment of the present invention, wherein the light-shielding part is provided in the support gap, the material of the support part is the same as the material of the first covering part, and a filter unit is provided in the dimming opening.

[0049] Figure 20 A plan view of the display panel according to an embodiment of the present invention, wherein the material of the support portion is the same as the material of the nearest color filter unit.

[0050] Figure 21 A plan view of the display panel according to an embodiment of the present invention, wherein the material of the support part is the same as the material of the first filter unit.

[0051] Explanation of reference numerals in the attached figures:

[0052] 10-Drive backplane, 11-Substrate, 12-Buffer layer;

[0053] 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;

[0054] 139-Planning layer group, 1391-First planarization layer, 1392-Second planarization layer;

[0055] 15-pixel defining layer, 151-pixel opening, 152-pixel defining part;

[0056] 16-Light-emitting layer, 161-Pixel electrode, 162-Light-emitting unit, 1621-First light-emitting unit, 1622-Second light-emitting unit, 1623-Third light-emitting unit, 163-Common electrode;

[0057] 17-Encapsulation layer, 171-First inorganic encapsulation layer, 172-Organic encapsulation layer, 173-Second inorganic encapsulation layer;

[0058] 18-Touch control layer, 181-First touch control layer, 1811-First touch unit, 182-Second touch control layer, 1821-Second touch unit, 183-Touch blocking layer, 184-Touch isolation layer;

[0059] 19-Light control layer, 191-First cover layer, 1911-First cover portion, 1912-Dimming opening, 1913-First dimming opening, 1914-Second dimming opening, 1915-Third dimming opening, 192-Light blocking layer, 1921-Light blocking portion, 1922-Light transmitting opening, 1923-First light transmitting opening, 1924-Second light transmitting opening, 1925-Third light transmitting opening, 193-Filter unit, 1931-First filter unit, 1932-Second filter unit, 1933-Third filter unit, 194-Support layer, 1941-Support portion, 1942-Support gap, 1943-Support opening;

[0060] 20 - Second Covering Layer;

[0061] 21-Light-shielding coating, 211-Light-shielding block;

[0062] 22-Mask plate. Detailed Implementation

[0063] 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, they are provided so that the invention will be thorough and complete, and the concept of the exemplary embodiments will be fully conveyed 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 invention and are not necessarily drawn to scale.

[0064] 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.

[0065] The terms “a,” “one,” “the,” “the,” and “at least one” are used to indicate the existence 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 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.

[0066] The FMLOC (Flexible Multi-Layer On Cell) design is currently mainstream in the OLED touch display field. The FMLOC design refers to fabricating a metal electrode layer on the encapsulation layer 17 of the display substrate. The surface of this metal electrode layer significantly reflects ambient light. To improve the contrast of the display panel and reduce reflected light, a polarizer is typically placed on the light-emitting side of the light-emitting layer 16 so that the display panel appears black when it is not lit. However, the polarizer causes a decrease in the light intensity of the display panel and results in a larger display panel thickness.

[0067] like Figure 1 As shown, in order to improve the light emission efficiency of the display panel from the front viewing angle and reduce the thickness of the display panel, a first cover layer 191 is provided on the side of the touch electrode layer away from the substrate 11. The first cover layer 191 includes a plurality of first cover portions 1911. The touch electrode layer includes a plurality of touch units. The first cover portions 1911 are provided on the side of the first touch unit 1811 away from the substrate 11. The first cover portions 1911 cover the first touch unit 1811. A dimming opening 1912 is formed between the sides of the first cover portions 1911 that are close to each other. A light-shielding layer 192 is provided on the side of the first cover layer 191 away from the substrate 11. The light-shielding layer 192 includes a plurality of light-shielding parts 1921. A light-transmitting opening 1922 is formed between the sides of the light-shielding parts 1921 that are close to each other. The orthographic projection of the dimming opening 1912 on the drive back plate 10 is located within the orthographic projection of the light-transmitting opening 1922 on the drive back plate 10. A filter unit 193 of a different color is provided in each dimming opening 1912. The filter unit 193 covers the side of the first cover part 1911 and extends to the side of the first cover part 1911 away from the substrate 11.

[0068] Because the width and thickness of the first touch unit 1811 are relatively small, the side of the first cover portion 1911 is beveled. The refractive index of the filter unit 193 is greater than that of the first cover portion 1911. Therefore, the light emitted from the light-emitting unit 162 at an oblique angle can undergo total internal reflection at the interface between the side of the first cover portion 1911 and the filter unit 193, deflecting the light emitted from the oblique angle to the direction of the normal angle. This improves the light emission efficiency of the display panel at the normal angle, thus eliminating the need for a polarizer, reducing the thickness of the display panel, and contributing to the thinning of the display panel.

[0069] like Figure 2As shown, a first manufacturing process is used to form multiple light-shielding parts 1921. The specific process is as follows: A light-shielding coating 21 of a first thickness is formed on the side of the first cover layer 191 away from the substrate 11. The light-shielding coating 21 of the first thickness is baked for a first duration to make the light-shielding coating 21 bond more tightly with the first cover layer 191. The cured light-shielding coating 21 is exposed to light of a first intensity through a mask 22. The exposed light-shielding coating 21 is developed for a second duration to form multiple light-shielding blocks 211. The light-shielding blocks 211 are rinsed with a first rinsing intensity. After rinsing, the light-shielding blocks 211 are baked to form the light-shielding parts 1921. In this process, the light-shielding parts 1921 are prone to remain in the dimming opening 1912.

[0070] like Figure 3 As shown, in order to improve the problem of the light-shielding layer 192 remaining in the dimming opening 1912, the manufacturing process of the light-shielding layer 192 was significantly adjusted. A second manufacturing process was used to form multiple light-shielding parts 1921, and the specific process is as follows: a light-shielding coating 21 of a second thickness was formed on the side of the first cover layer 191 away from the substrate 11. The light-shielding coating 21 of the second thickness was baked for a third time to make the light-shielding coating 21 bonded more tightly to the second cover layer 20. The cured light-shielding coating 21 was exposed to light of a second intensity through a mask plate 22. The exposed light-shielding coating 21 was developed for a fourth time. The light-shielding block 211 was rinsed with a second rinsing intensity. After rinsing, the light-shielding block 211 was baked to form the light-shielding part 1921.

[0071] It should be noted that the second thickness is greater than the first thickness, the second duration is greater than the first duration, the second intensity is greater than the first intensity, the fourth duration is greater than the second duration, and the second rinsing intensity is greater than the first rinsing intensity.

[0072] When the inverted trapezoidal shape of the light-shielding block 211 is manufactured using the second process, the angle between the side of the light-shielding block 211 away from the substrate 11 and the side of the light-shielding block 211 becomes smaller, making the light-shielding block 211 thinner at this angle. The light-shielding block 211 is broken during the washing process, resulting in a severe peeling problem of the light-shielding portion 1921 on the side of the first cover portion 1911 away from the substrate 11. After baking, the angle between the side of the light-shielding block 211 close to the substrate 11 and the side of the light-shielding block 211 increases, causing some of the light-transmitting openings 1922 to become larger. The reflectivity of light in the enlarged light-transmitting openings 1922 increases, forming bright stripes, while the reflectivity in the unenlarged light-transmitting openings 1922 is smaller, forming dark stripes, resulting in vertical stripe defects with alternating light and dark on the display panel.

[0073] Based on this, embodiments of the present invention provide a display panel. For example... Figures 4 to 21As shown, the display panel includes a driving backplate 10, a pixel defining layer 15, multiple pixel electrodes 161, multiple light-emitting units 162 of different colors, a common electrode 163, a first cover layer 191, a filter layer, a support layer 194, and a light-shielding layer 192. The pixel defining layer 15 is disposed on one side of the driving backplate 10 and includes multiple pixel defining portions 152. Pixel openings 151 are formed between the adjacent sides of the pixel defining portions 152. Multiple pixel electrodes 161 are respectively disposed within different pixel openings 151. 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 first cover layer 191 includes multiple first cover portions 1911. The first cover portions 1911 are disposed on the side of the common electrode 163 away from the driving backplate 10. Dimming openings 1912 are formed between the adjacent sides of the first cover portions 1911. The slope angle of the side of the first covering part 1911 is less than 90 degrees; the filter layer includes filter units 193 of different colors, each filter unit 193 is disposed in a different dimming opening 1912, the filter unit 193 covers the side of the first covering part 1911, the orthographic projection of the filter unit 193 on the drive back plate 10 covers the orthographic projection of the light-emitting unit 162 on the drive back plate 10, and the refractive index of the filter unit 193 is greater than the refractive index of the first covering part 1911; the support layer 194 includes multiple support parts. 1941, The support portion 1941 is disposed on the side of the first covering portion 1911 away from the substrate 11. The support portion 1941 is disposed around the dimming opening 1912. A support gap 1942 is formed between two adjacent support portions 1941. The light-shielding layer 192 includes a plurality of light-shielding portions 1921. The light-shielding portions 1921 are disposed in the support gap 1942. The light-shielding portions 1921 at least cover the side of the support portion 1941. A light-transmitting opening 1922 is formed between the sides of the light-shielding portions 1921 that are close to each other.

[0074] The display panel includes multiple first covering portions 1911, multiple support portions 1941, and multiple light-shielding portions 1921. Support portions 1941 are located on the side of the first covering portion 1911 away from the drive backplate 10. A support gap 1942 is formed between adjacent support portions 1941 on the same first covering portion 1911. Light-shielding portions 1921 are located within the support gaps 1942, and light-transmitting openings 1922 are formed between the sides of the light-shielding portions 1921 that are close to each other. Before the light-shielding block 211 solidifies to form the light-shielding portion 1921, the support of the support portions 1941 prevents the light-shielding block 211 from peeling off from the first covering portion 1911 during rinsing. Since the shape and size of each light-shielding portion 1921 are basically the same, the shape and size of each light-transmitting opening 1922 are relatively uniform, and the reflectivity of light within each light-transmitting opening 1922 is the same, thereby improving the vertical stripe defects caused by alternating light and dark areas on the display panel.

[0075] The display panel involved in the embodiments of the present invention will be described in detail below with reference to specific examples.

[0076] like Figures 4 to 6 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.

[0077] The substrate 11 can be an inorganic material substrate 11 or an organic material substrate 11. For example, in one embodiment of the present invention, the material of the substrate 11 can be a glass material such as soda-lime glass, quartz glass, or sapphire glass, or a metal material such as stainless steel, aluminum, or nickel.

[0078] 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 layer, a pressure-sensitive adhesive layer, a first polyimide layer and a second polyimide layer stacked sequentially.

[0079] 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:

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] 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 152, and a pixel opening 151 is formed between two adjacent pixel defining portions 152. 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.

[0085] 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.

[0086] 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, depending on the emitted color, the light-emitting unit 162 may include a first light-emitting unit 1621, a second light-emitting unit 1622, and a third light-emitting unit 1623.

[0087] Furthermore, the display panel of the present 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 limitation. 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.

[0088] The display panel also includes a touch control layer 18, which can be a mutual capacitive touch control layer. The touch control layer 18 includes a first touch control layer 181 and a second touch control layer 182. The first touch control layer 181 is a metal mesh layer (MM), and the second touch control layer 182 is a bridge metal layer (BM). The metal mesh is located in the display area and can be divided into touch-driving (Tx) metal mesh and touch-sensing (Rx) metal mesh according to the horizontal and vertical directions. One of the touch-sensing (Rx) metal mesh and the touch-driving (Tx) metal mesh is interconnected, while the other is connected through the bridge metal layer.

[0089] The first tactile control layer 181 is disposed on the side of the substrate 11 away from the encapsulation layer 17, and the second tactile control layer 182 is disposed between the first tactile control layer 181 and the encapsulation layer 17. The tactile control layer 18 may further include a touch blocking layer 183 and a touch isolating layer 184, with the touch blocking layer 183 disposed between the encapsulation layer 17 and the second tactile control layer 182, and the touch isolating layer 184 disposed between the first tactile control layer 181 and the second tactile control layer 182.

[0090] The first tactile control layer 181 may include a plurality of first touch units 1811, which are spaced apart. The orthographic projection of a 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 second tactile control layer 182 may include a plurality of second touch units 1821, whose orthographic projections on the substrate 11 overlap with the orthographic projections of the first touch units 1811 on the substrate 11.

[0091] The display panel may further include a light control layer 19, which includes a first cover layer 191. The first cover layer 191 includes a plurality of first cover portions 1911, which are disposed on the side of the first touch unit 1811 away from the substrate 11 and cover the first touch unit 1811. The first cover portions 1911 insulate the first touch unit 1811, thereby reducing the thickness of the display panel. The orthographic projection of the first cover portion 1911 on the substrate 11 overlaps with the orthographic projection of the pixel definition portion 152 on the substrate 11, and the distance between the edge of the orthographic projection of the first cover portion 1911 on the substrate 11 and the edge of the orthographic projection of the pixel definition portion 152 on the substrate 11 is less than 3 μm.

[0092] The slope angle of the side of the first cover portion 1911 is less than 90 degrees, that is, the angle between the side of the first cover portion 1911 and the side of the first cover portion 1911 close to the substrate 11 is less than 90 degrees. In this embodiment, the angle between the side of the first cover portion 1911 and the side of the first cover portion 1911 close to the substrate 11 can be between 45 degrees and 85 degrees. The shape of the first cover portion 1911 is trapezoidal, and its side is a conventional bevel, making the slope angle easier to control. A dimming opening 1912 is formed between two adjacent first cover portions 1911.

[0093] The light control layer 19 may further include a support layer 194, wherein the support portion 1941 is made of a transparent resin that is different from the material of the first cover portion 1911. The support layer 194 includes a plurality of support portions 1941, which are disposed on the side of the first cover portion 1911 away from the substrate 11, and the support portions 1941 are disposed around the dimming opening 1912.

[0094] The light control layer 19 may further include a light-shielding layer 192, which includes a plurality of light-shielding portions 1921. The light-shielding portions 1921 are located on the side of the first covering portion 1911 away from the driving backplate 10, and are disposed within the support gap 1942, at least covering the side surface of the support portion 1941. Light-transmitting openings 1922 are formed between the adjacent sides of the light-shielding portions 1921. Due to the supporting effect of the support portion 1941, the shape and size of the light-shielding portions 1921 are basically the same, thus the shape and size uniformity of each light-transmitting opening 1922 is good, and the reflectivity of light within each light-transmitting opening 1922 is the same, thereby improving the vertical stripe defects of the display panel's alternating light and dark areas.

[0095] The orthographic projection of the light-shielding portion 1921 on the substrate 11 covers the orthographic projection of the first touch unit 1811 on the substrate 11. In other words, the orthographic projection of the first touch unit 1811 on the substrate 11 is located within the orthographic projection of the light-shielding portion 1921 on the substrate 11, and the area of ​​the orthographic projection of the first touch unit 1811 on the substrate 11 is smaller than the area of ​​the orthographic projection of the light-shielding portion 1921 on the substrate 11. This reduces the reflection of ambient light by the touch control layer 18 and improves the light emission efficiency of the display panel at the forward viewing angle.

[0096] The light control layer 19 may also include a filter layer, which includes filter units 193 of different colors. The filter units 193 are disposed in the dimming openings 1912 formed by two adjacent first covering portions 1911. The filter units 193 cover the side of the first covering portion 1911. The width of the overlapping area between the orthographic projection of the filter unit 193 on the substrate 11 and the orthographic projection of the first covering portion 1911 on the substrate 11 is less than or equal to 6 μm.

[0097] The orthographic projection of the filter unit 193 on the driving backplate 10 overlaps with the orthographic projection of the light-emitting unit 162 on the driving backplate 10. The filter units 193 of different colors include a first filter unit 1931, a second filter unit 1932, and a third filter unit 1933. The orthographic projection of the first filter unit 1931 on the substrate 11 overlaps with the orthographic projection of the first light-emitting unit 1621 on the substrate 11; the orthographic projection of the second filter unit 1932 on the substrate 11 overlaps with the orthographic projection of the second light-emitting unit 1622 on the substrate 11; and the orthographic projection of the third filter unit 1933 on the substrate 11 overlaps with the orthographic projection of the third light-emitting unit 1623 on the substrate 11. The color of the first light-emitting unit 1621 is red, the color of the second light-emitting unit 1622 is green, and the color of the third light-emitting unit 1623 is blue. The color of the first filter unit 1931 is red, the color of the second filter unit 1932 is green, and the color of the third filter unit 1933 is blue.

[0098] The refractive index of the filter unit 193 is greater than that of the first cover portion 1911. Therefore, reflected light from the ambient light at an oblique angle can undergo total internal reflection on the side of the first cover portion 1911, deflecting it to the direction of the normal viewing angle, thus improving the light extraction efficiency at the normal viewing angle without any energy loss. In this embodiment, the refractive index of the first cover portion 1911 can be a resin material with a refractive index of 1.45-1.5, and the refractive index of the filter unit 193 can be 1.65-1.75.

[0099] The side of the support portion 1941 closest to the substrate 11 is designated as the first support surface, and the side of the first covering portion 1911 furthest from the substrate 11 is designated as the first covering surface. The edge of the first support surface near the filter unit 193 is flush with the edge of the first covering surface near the filter unit 193. This design maximizes the coverage area of ​​the light-shielding portion 1921 and prevents the support portion 1941 from entering the light-shielding opening and affecting the optical effect inside the opening. Figure 6 As shown, a support gap 1942 is formed between two adjacent support portions 1941. The slope angle θ of the support portion 1941 is 30 degrees to 50 degrees. The angle between the side of the support portion 1941 and the side of the support portion 1941 close to the substrate 11 is 30 degrees to 50 degrees. The thickness of the support portion 1941 is 1 μm to 2 μm.

[0100] To increase the coverage area of ​​the light-shielding portion 1921, it can be extended from the side of the support portion 1941 to the side of the support portion 1941 away from the substrate 11, so that the light-shielding portion 1921 and the side of the support portion 1941 away from the substrate 11 form an overlapping area. To maximize the coverage area of ​​the light-shielding portion 1921 on the side of the first covering portion 1911 away from the substrate 11, the width of the overlapping area is at least 0.6 times the width of the side of the support portion 1941 away from the substrate 11. In this embodiment, as... Figure 6 As shown, the width d1 of the side of the support portion 1941 away from the substrate 11 is 3μm to 5μm, the width d2 of the side of the support portion 1941 close to the substrate 11 is less than 5μm, and the width of the overlapping area between the light-shielding portion 1921 and the side of the support portion 1941 away from the substrate 11 is less than or equal to 3μm.

[0101] The filter unit 193 extends from the side of the first cover portion 1911 to the side of the cover support portion 1941, and covers at least a portion of the side of the light-shielding portion 1921 away from the substrate 11. It is understood that the thickness of the filter unit 193 is greater than the sum of the thickness of the first cover portion 1911 and the thickness of the support portion 1941. Figure 6 As shown, in this embodiment, the thickness d3 of the support portion 1941 is 1μm to 2μm, the thickness d4 of the first covering portion 1911 is 1.5μm to 2.5μm, the thickness d5 of the light-shielding portion 1921 is 1μm to 2.5μm, and the thickness d6 of the filter unit 193 is 2μm to 6μm.

[0102] The display panel may further include a second cover layer 20, which covers the side of the light filter unit 193 away from the substrate 11 and the side of the light shield 1921 away from the substrate 11. The refractive index of the second cover layer 20 is 1.45-1.5, and the thickness of the second cover layer 20 is 3μm-6μm.

[0103] like Figure 7 and Figure 8 As shown, the material of the support portion 1941 can also be the same as that of the first covering portion 1911, and the support portion 1941 and the first covering portion 1911 can be integrally formed. When forming the first covering layer 191, the thickness of the first covering coating can be increased, and a groove with an inverted trapezoidal cross-section can be formed directly on the side of the first covering coating away from the substrate 11 to form the first covering portion 1911 and the support portion 1941. The width d1 of the side of the support portion 1941 away from the substrate 11 is 3μm to 5μm, the width d2 of the side of the support portion 1941 close to the substrate 11 is less than 5μm, the thickness d3 of the support portion 1941 is 1μm to 2μm, and the slope angle θ of the support portion 1941 is 30 degrees to 50 degrees. The width of the overlapping area between the light-shielding portion 1921 and the side of the support portion 1941 away from the substrate 11 is less than or equal to 3μm. The thickness of the first covering part 1911, the thickness of the light-shielding part 1921, and the thickness of the light-filtering unit 193 are... Figure 6 The same applies, so I will not repeat it here.

[0104] It is understood that the groove is the support gap 1942, and the protrusion around the groove is the support portion 1941. The support gap 1942 and the support portion 1941 can be formed in one process, which is simpler and less expensive. The width of the support gap 1942 is usually larger than the width of the support portion 1941, which reduces the precision requirements of the mask 22 and lowers the manufacturing cost of the mask 22. Therefore, the manufacturing cost of this display panel is lower. The support portion 1941 is integrally formed with the first covering portion 1911, resulting in a tighter fit between the support portion 1941 and the first covering portion 1911, and better support during the rinsing process.

[0105] like Figure 9 and Figure 10As shown, the material of the support portion 1941 is the same as that of the nearest color filter unit 193, both made of the same color resist material. For example, the support portion 1941 closest to the first filter unit 1931 is also a red resist, the support portion 1941 closest to the second filter unit 1932 is also a green resist, and the support portion 1941 closest to the third filter unit 1933 is also a blue resist. The side of the support portion 1941 away from the substrate 11 is flush with the side of the filter unit 193 away from the substrate 11. The width d1 of the side of the support portion 1941 away from the substrate 11 is 3μm to 5μm, the width d2 of the side of the support portion 1941 close to the substrate 11 is less than 5μm, the thickness d3 of the support portion 1941 is 1μm to 2μm, and the slope angle θ of the support portion 1941 is 30 degrees to 50 degrees. The width of the overlapping area between the light-shielding portion 1921 and the support portion 1941 on the side away from the substrate 11 is less than or equal to 3 μm. The thickness of the first covering portion 1911, the thickness of the light-shielding portion 1921, and... Figure 6 The same applies, so it will not be repeated here. The thickness of the filter unit 193 is equal to the sum of the thickness of the first covering part 1911 and the thickness of the supporting part 1941.

[0106] While forming the filter unit 193, the color resist material can be directly extended from the side of the first cover portion 1911 to cover the side of the first cover portion 1911 away from the substrate 11, that is, the filter unit 193 and the support portion 1941 are formed in one process. There is no need to add an additional process to form the support portion 1941, resulting in lower process costs. The support portion 1941 not only supports the light-shielding portion 1921, but also plays a certain role in filtering light. The color resist material is tightly attached to the light-shielding portion 1921 without any gaps between them, so there is no need to cover the side of the light-shielding portion 1921 away from the substrate 11 with color resist material, which also reduces the amount of color resist material used.

[0107] like Figure 11 and Figure 12 As shown, and as Figure 9 and Figure 10 The difference lies in that the side of the support portion 1941 away from the substrate 11 is flush with the side of the filter unit 193 away from the substrate 11. In the manufacturing process of this display panel, after the first filter unit 1931, the second filter unit 1932 and the third filter unit 1933 are formed in the dimming opening 1912, the support portion 1941 is formed on the side of the first cover portion 1911 away from the substrate 11.

[0108] The width d1 of the side of the support portion 1941 away from the substrate 11 is 3μm to 5μm, the width d2 of the side of the support portion 1941 close to the substrate 11 is less than 5μm, the thickness d3 of the support portion 1941 is 1μm to 2μm, and the slope angle θ of the support portion 1941 is 30 degrees to 50 degrees. The width of the overlapping area between the light-shielding portion 1921 and the side of the support portion 1941 away from the substrate 11 is less than or equal to 3μm. The thickness of the first covering portion 1911, the thickness of the light-shielding portion 1921, and... Figure 6 The same applies, so it will not be repeated here. The thickness of the filter unit 193 is equal to the thickness of the first cover portion 1911.

[0109] The advantage of this display panel is that the filter unit 193 is relatively thin, resulting in less light loss when the emitted light from the light-emitting unit 162 passes through the filter unit 193, thus improving the light emission efficiency of the display panel and further reducing its power consumption. When using this structure, the outer edge of the support portion 1941 near the substrate 11 can extend beyond the edge of the first cover portion 1911 away from the substrate 11. Because the filter unit 193 and the support portion 1941 are made of the same material, this will not have any additional impact on the light emission effect.

[0110] like Figure 13 As shown, the material of the support portion 1941 is the same as that of the first filter unit 1931, that is, all the support portions 1941 are made of red color resist material. Figure 14 As shown, the material of the support portion 1941 is the same as that of the second filter unit 1932, that is, all the support portions 1941 are made of green color resist material. Figure 15 As shown, the material of the support portion 1941 is the same as that of the first filter unit 1931, that is, all support portions 1941 are made of blue color resist material. The advantage of the above three display panels is that, while further reducing power consumption, all support portions 1941 can be formed in a single process, compared to… Figure 11 The manufacturing cost of the three different colored support parts in 1941 is lower.

[0111] The display panel involved in this invention will be further described below with reference to the plan view.

[0112] like Figures 16 to 21As shown, the support portion 1941 has a support opening 1943, and the support portion 1941 is arranged around the dimming opening 1912. The edge of the support portion 1941 extends outward relative to the edge of the first covering portion 1911 away from the substrate 11, exposing a portion of the first covering portion 1911. The edge of the light-shielding portion 1921 extends outward relative to the edge of the first covering portion 1911, exposing a portion of the support portion 1941. The light-shielding portion 1921 fills the support gap 1942 between adjacent support units. The edge of the dimming opening 1912, in its orthographic projection onto the substrate 11, lies between the orthographic projections of the two mutually distant sides of the support portion 1941 onto the substrate 11. As shown in the figure, the filter unit 193 is disposed in the dimming opening 1912 and the support opening 1943. The edge of the filter unit 193 extends outward relative to the mutually distant edges of the support opening 1943. That is, the orthogonal projection of the filter unit 193 on the substrate 11 covers the orthogonal projection of the support portion 1941 on the substrate 11, as well as the orthogonal projection of part of the light-shielding portion 1921 on the substrate 11.

[0113] The dimming opening 1912 includes a first dimming opening 1913, a second dimming opening 1914, and a third dimming opening 1915. The light-transmitting opening 1922 includes a first light-transmitting opening 1923, a second light-transmitting opening 1924, and a third light-transmitting opening 1925. A first filter unit 1931 is disposed within the first dimming opening 1913 and the first light-transmitting opening 1923. A second filter unit 1932 is disposed within the second dimming opening 1914 and the second light-transmitting opening 1924. A third filter unit 1933 is disposed within the third dimming opening 1915 and the third light-transmitting opening 1925. The edge of the first filter unit 1931 extends outward relative to the side of the support portion 1941 near the substrate 11, away from the edge of the first dimming opening 1913; the edge of the second filter unit 1932 extends outward relative to the side of the support portion 1941 near the substrate 11, away from the edge of the second dimming opening 1914; and the edge of the third filter unit 1933 extends outward relative to the side of the support portion 1941 near the substrate 11, away from the edge of the third dimming opening 1915.

[0114] Figure 18 , Figure 19 and Figure 16 , Figure 17 They are basically the same, except that the material of the support part 1941 is the same as that of the first cover part 1911. Figure 20 and Figure 16 , Figure 17 They are basically the same, except that the edge of the filter unit 193 and the side of the support portion 1941 away from the substrate 11 are close to each other. The material of the support portion 1941 is the same as the material of the filter unit 193 of different colors. Therefore, the edge of the color resist material of different colors is extended outward relative to the edge of the first cover portion 1911. Figure 21and Figure 20 They are basically the same, the only difference being that the material of the support portion 1941 is the same as the material of the red filter unit 193. When the material of the support portion 1941 is the same as the material of the green filter unit 193 or the blue filter unit 193, the top view of the display panel can be referenced. Figure 21 .

[0115] It should be noted that, Figure 11 , Figure 13 , Figure 15 , Figure 17 , Figures 19 to 21 The specific structure of the encapsulation layer 17, as well as the second touch control layer 182, touch blocking layer 183, and touch isolation layer 184, are omitted; their arrangement is similar to... Figure 10 They are basically the same; you can refer to them. Figure 10 The specific structure within.

[0116] 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.

[0117] 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.

[0118] 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.

[0119] Other embodiments of the 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, characterized in that, include: Drive backplane; A pixel defining layer is disposed on one side of the driving backplate. The pixel defining layer includes a plurality of pixel defining parts, and a pixel opening is formed between the sides of the pixel defining parts that are close to each other. Multiple pixel electrodes are respectively disposed in different pixel openings; Multiple light-emitting units of different colors are respectively disposed on the side of each pixel electrode away from the driving backplate; A common electrode is located on the side of the plurality of light-emitting units away from the driving backplate; The first cover layer includes a plurality of first cover portions, the first cover portions being disposed on the side of the common electrode away from the driving back plate, a dimming opening being formed between the sides of the first cover portions that are close to each other, and the slope angle of the side of the first cover portion being less than 90 degrees. The filter layer includes filter units of different colors, each filter unit is disposed in a different dimming opening, the filter unit covers the side of the first cover, the orthographic projection of the filter unit on the drive back plate covers the orthographic projection of the light-emitting unit on the drive back plate, and the refractive index of the filter unit is greater than the refractive index of the first cover. The support layer includes multiple support portions, which are located on the side of the first cover portion away from the drive back plate. The support portions are arranged around the dimming opening, and a support gap is formed between two adjacent support portions. The light-shielding layer includes multiple light-shielding parts disposed within the support gap. The light-shielding parts at least cover the side of the support part, and a light-transmitting opening is formed between the sides of the light-shielding parts that are close to each other.

2. The display panel according to claim 1, characterized in that, The side of the support portion near the drive back plate is the first support surface, and the side of the first cover portion away from the drive back plate is the first cover surface. The edge of the first support surface near the filter unit is flush with the edge of the first cover surface near the filter unit.

3. The display panel according to claim 1, characterized in that, The angle between the side of the support and the side of the support near the drive back plate is 30 to 50 degrees.

4. The display panel according to claim 1, characterized in that, The light-shielding portion extends from the side of the support portion to the side of the support portion away from the drive back plate.

5. The display panel according to claim 1, characterized in that, The light-shielding part and the side of the support part away from the drive back plate form an overlapping area, and the width of the overlapping area is more than 0.6 times the width of the side of the support part away from the drive back plate.

6. The display panel according to claim 5, characterized in that, The width of the side of the support portion away from the drive back plate is 3μm to 5μm, and the width of the overlapping area between the light-shielding portion and the side of the support portion away from the drive back plate is less than or equal to 3μm.

7. The display panel according to claim 1, characterized in that, The light-filtering unit extends from the side of the first cover to cover the side of the support, and at least a portion of the side of the light-shielding portion away from the drive back plate.

8. The display panel according to claim 7, characterized in that, The width of the overlapping area between the orthographic projection of the filter unit on the drive back plate and the orthographic projection of the first covering part on the drive back plate is less than or equal to 6 μm.

9. The display panel according to claim 1, characterized in that, The material of the support part is different from the material of the first covering part.

10. The display panel according to claim 1, characterized in that, The material of the support part is the same as that of the first covering part, and the support part and the first covering part are integrally formed.

11. The display panel according to claim 1, characterized in that, The different colored filter units 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.

12. The display panel according to claim 11, characterized in that, The material of the support is the same as the material of the filter unit of the nearest color.

13. The display panel according to claim 11, characterized in that, The material of the support is the same as the material of the first filter unit, the second filter unit, or the third filter unit.

14. The display panel according to claim 12 or 13, characterized in that, The side of the support near the drive back plate is flush with the side of the filter unit away from the drive back plate.

15. The display panel according to claim 12, characterized in that, The side of the support portion away from the drive back plate is flush with the side of the filter unit away from the drive back plate.

16. The display panel according to claim 1, characterized in that, The refractive index of the first covering part is 1.45-1.5, and the refractive index of the filter unit is 1.65-1.

75.

17. The display panel according to claim 1, characterized in that, The angle between the side of the first cover and the side of the first cover near the drive back plate is 45 degrees to 85 degrees.

18. The display panel according to claim 1, characterized in that, The distance between the edge of the orthographic projection of the first covering portion on the driving back plate and the edge of the orthographic projection of the pixel defining portion on the driving back plate is less than 3 μm.

19. The display panel according to claim 11, characterized in that, The multiple light-emitting units of different colors include a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit. The first light-emitting unit is red, the second light-emitting unit is green, and the third light-emitting unit is blue. The orthographic projection of the first filter unit on the driving back panel overlaps with the orthographic projection of the first light-emitting unit on the driving back panel. The orthographic projection of the second filter unit on the driving back panel overlaps with the orthographic projection of the second light-emitting unit on the driving back panel. The orthographic projection of the third filter unit on the driving back panel overlaps with the orthographic projection of the third light-emitting unit on the driving back panel.

20. The display panel according to claim 1, characterized in that, The display panel further includes an encapsulation layer and a first touch control layer. The encapsulation layer is disposed on the side of the common electrode away from the driving backplate. The first touch control layer is disposed between the encapsulation layer and the first cover layer. The first touch control layer includes a plurality of first touch units, which are spaced apart. The first cover portion covers the first touch units. The orthographic projection of the first touch unit on the driving backplate is located within the orthographic projection of the light-shielding portion on the driving backplate.

21. The display panel according to claim 1, characterized in that, The display panel further includes a second cover layer that covers the side of the filter unit and the light-shielding portion away from the drive backplate.

22. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 21.

Images