Display panel and display equipment

Abstract

The embodiment of the invention discloses a display panel and display equipment, the display panel comprises a display substrate, a black matrix layer and a filtering structure layer, the black matrix layer is provided with a plurality of light-transmitting openings and pixel openings, and the plurality of light-transmitting openings are arranged in a display light-transmitting area; the light filtering structure layer comprises light filtering parts and anti-reflection parts, one light filtering part is correspondingly arranged in one pixel opening, and in the display area, every two adjacent light filtering parts are arranged in a spaced mode; the anti-reflection part is arranged in the display light-transmitting area and configured to absorb light, and the anti-reflection part is arranged on the side, away from the display substrate, of the black matrix layer. According to the embodiment of the invention, the anti-reflection part is arranged on the black matrix layer in the display light-transmitting area to absorb more light rays so as to reduce the light ray reflection amount of the whole display light-transmitting area, namely, the reflectivity of the whole display light-transmitting area is reduced, so that the difference between the reflectivity of the whole display light-transmitting area and the light ray reflectivity of the display area is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display panel and a display device. BACKGROUND

[0002] POL Less is an innovative technology that improves the performance of display panels by replacing traditional polarizers. The core of this technology is to optimize the optical structure to reduce light loss and lower power consumption. However, after removing the polarizer, the reflectivity of the screen body increases sharply, affecting the performance of the screen in the off state.

[0003] The current POL Less technology sets multiple openings on the black matrix layer, and then sets one of the red / green / blue color blocking blocks in each opening. In the under-screen light sensing technology, in order to realize the sensing function of the under-screen light sensing module, the black matrix layer in the light sensing area usually needs to be processed to form a hole so that light can be radiated to the light sensing module.

[0004] In the research and practice of the prior art, the inventors of the present application found that based on the light sensing area, a sub-pixel is also provided, and the light sensing hole in the black matrix layer is arranged between adjacent sub-pixels to increase the light transmittance, so that the light can be sensed by the light sensing module. However, the arrangement of the light sensing hole will cause the reflectivity of the light sensing area to be higher than that of the display area, thereby making the light sensing area more obvious. SUMMARY

[0005] The embodiments of the present application provide a display panel and a display device, which can reduce the reflectivity difference between the display area and the display light transmission area.

[0006] The embodiments of the present application provide a display panel, which comprises a display area and a display light transmission area, the display area is located at least one side of the display light transmission area, and the display panel comprises:

[0007] a display substrate;

[0008] a black matrix layer arranged on the display substrate, the black matrix layer is provided with a plurality of light transmission openings and pixel openings, part of the pixel openings are arranged in the display area, part of the pixel openings are arranged in the display light transmission area, and a plurality of the light transmission openings are arranged between two adjacent pixel openings in the display light transmission area;

[0009] a light filtering structure layer comprising a light filtering part and an anti-reflection part, one light filtering part is arranged in one pixel opening, and two adjacent light filtering parts are arranged apart in the display area; the anti-reflection part is arranged in the display light transmission area and is configured to absorb light, the anti-reflection part is arranged on the side of the black matrix layer away from the display substrate, and the sidewall of the anti-reflection part is located outside the pixel opening and the light transmission opening.

[0010] Optionally, in some embodiments of the present application, the anti-reflection part comprises at least one filter layer, and one filter layer is integrally connected with one filter part.

[0011] Optionally, in some embodiments of the present application, any one of the filter layers is provided with a hollow opening, the side wall of the hollow opening is located outside the pixel opening and the light-transmitting opening, the distance from the side wall of the hollow opening of any one of the filter layers to the pixel opening is greater than 0 microns, and the distance from the side wall of the hollow opening of any one of the filter layers to the light-transmitting opening is greater than 0 microns.

[0012] Optionally, in some embodiments of the present application, the anti-reflection part comprises at least two filter layers, and the at least two filter layers are stacked in the thickness direction of the display panel, and the colors of any two adjacent filter layers are different.

[0013] Optionally, in some embodiments of the present application, in any two adjacent filter layers, the side wall of the hollow opening of the filter layer away from the black matrix layer is located outside the side wall of the hollow opening of the filter layer close to the black matrix layer, and the distance from the side wall of the hollow opening of the filter layer away from the black matrix layer to the side wall of the hollow opening of the filter layer close to the black matrix layer is greater than 0 microns.

[0014] Optionally, in some embodiments of the present application, in the thickness direction of the display panel, the pixel opening and the hollow opening corresponding to the pixel opening form a first opening group, and in the first opening group, the side wall distance between the two hollow openings farthest from the black matrix layer is greater than the side wall distance between the pixel opening and the hollow opening closest to the black matrix layer.

[0015] Optionally, in some embodiments of the present application, in the thickness direction of the display panel, the light-transmitting opening and the hollow opening corresponding to the light-transmitting opening form a second opening group, and in the second opening group, the side wall distance between the two hollow openings farthest from the black matrix layer is greater than the side wall distance between the light-transmitting opening and the hollow opening closest to the black matrix layer.

[0016] Optionally, in some embodiments of the present application, the anti-reflection part comprises three layers of the filter layer, the three layers of the filter layer are respectively a first filter layer, a second filter layer and a third filter layer, the first filter layer, the second filter layer and the third filter layer are sequentially stacked on the black matrix layer, a plurality of the filter parts comprise a first filter part, a second filter part and a third filter part, the first filter layer is integrally connected with the first filter part, the second filter layer is integrally connected with the second filter part, and the third filter layer is integrally connected with the third filter part;

[0017] The color of the first filter layer is one of red, green and blue, the color of the second filter layer is another of red, green and blue, and the color of the third filter layer is the last of red, green and blue.

[0018] The area of the first filter layer, the second filter layer and the third filter layer completely overlapping with each other is equal to the sum of the opening areas of all the light transmission openings.

[0019] Optionally, in some embodiments of the present application, the display panel further comprises a flat layer covering the filter structure layer and the black matrix layer, the flat layer also fills the light transmission opening, the refractive index of any filter layer is greater than the refractive index of the flat layer and less than the refractive index of the black matrix layer.

[0020] Optionally, in some embodiments of the present application, the difference between the reflectivity of the display area and the reflectivity of the display light transmission area is less than or equal to 0.5%.

[0021] Correspondingly, the present application also provides a display device comprising the light sensing module and the display panel as described in any one of the above embodiments, the light sensing module is arranged on the backlight side of the display panel and corresponds to the display light transmission area.

[0022] The display panel of the present application comprises a display substrate, a black matrix layer and a filter structure layer, the black matrix layer is provided with a plurality of light transmission openings and pixel openings, part of the pixel openings are arranged in the display area, part of the pixel openings are arranged in the display light transmission area, a plurality of the light transmission openings are arranged in the display light transmission area, and the light transmission opening is arranged between two adjacent pixel openings; the filter structure layer comprises a filter part and an anti-reflection part, one filter part is arranged in one pixel opening, and in the display area, two adjacent filter parts are arranged apart; the anti-reflection part is arranged in the display light transmission area and is configured to absorb light, and the anti-reflection part is arranged on the side of the black matrix layer away from the display substrate.

[0023] It can be understood that, based on the filter parts being arranged separately in the display area, part of the light is reflected at the interface between the filter parts and the surface of the black matrix layer, and part of the light is absorbed by the filter parts and the black matrix layer. In the display light transmission area, the arrangement of the light transmission opening allows a large amount of light to enter the light transmission opening without being absorbed, and the light reflectivity of the light transmission opening area is high. Based on this, the embodiment of the present application provides an anti-reflection part on the black matrix layer in the display light transmission area to absorb more light to reduce the light reflection amount of the entire display light transmission area, that is, to reduce the reflectivity of the entire display light transmission area, so as to reduce the difference between the light reflectivity of the display area and the light reflectivity of the display area, and improve the reflectivity uniformity of the entire display panel. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a structure schematic diagram of a current display panel light sensing area;

[0025] Figure 2 is a top view schematic diagram of a display panel provided by the embodiment of the present application;

[0026] Figure 3 is Figure 2 is a cross-sectional structure schematic diagram of the display area in the embodiment;

[0027] Figure 4 is Figure 2 is a partial enlarged schematic diagram of the display light transmission area in the embodiment;

[0028] Figure 5 is Figure 4 is a cross-sectional structure schematic diagram along the MN line in the embodiment;

[0029] Figure 6 is a structure schematic diagram of a display device provided by the embodiment of the present application.

[0030] BRIEF DESCRIPTION OF DRAWINGS:

[0031] Display device 1000; light sensing module 200; display panel 100; display area AA; display light transmission area SA; display substrate 11; black matrix layer 12; filter structure layer 13; light transmission opening 121; pixel opening 122; planar layer 14; filter part 131; anti-reflection part 132; wire tp; first filter part 13r; second filter part 13g; third filter part 13b; first opening 22a; second opening 22b; third opening 22c; filter layer 3a; hollow 3c; distance L; first opening group k1; second opening group k2; first filter layer 3a1; second filter layer 3a2; third filter layer 3a3; pitch V. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application. In addition, it should be understood that the specific implementation described herein is only used to illustrate and explain the present application, and is not used to limit the present application. In the present application, the embodiments can be combined with each other but will not be described one by one, and the positional words such as "upper" and "lower" are generally used to refer to the upper and lower of the device in the actual use or working state, and the specific is the direction of the drawing surface in the drawings; and "inner" and "outer" are used in relation to the outline of the device; the words "first", "second", "third" and the like are only used as labels, and do not impose a numerical requirement or establish an order.

[0033] The present application provides a display panel and a display device, which will be described in detail below. It should be noted that the description order of the following embodiments is not limited as the preferred order of the embodiments.

[0034] In the current design, as shown in Figure 1 The display panel includes a light sensing area and a display area, and the light sensing area is configured to correspond to a light sensing module. In the light sensing area of the display panel, a first opening M1 and a second opening M2 are formed on the black matrix BM, a color resistance block cf is arranged in the first opening M1, and a planar layer PA is filled in the second opening M2. In the display area, the black matrix BM is provided with the first opening M1, but not provided with the second opening M2.

[0035] At this time, based on the fact that the color resistance blocks cf in the display area are arranged apart from each other, part of the light will be reflected at the interface between the color resistance blocks cf and the surface of the black matrix BM, and part of the light will be absorbed by the color resistance blocks cf and the black matrix BM. The arrangement of the second opening M2 in the light sensing area allows a large amount of light to enter the second opening M2 without being absorbed, and at this time, the light reflectivity of the second opening M2 area is high, which further causes the light reflectivity of the entire light sensing area to be higher than that of the display area.

[0036] Based on this, the display panel of the present application sets an anti-reflection part on the black matrix layer in the display light transmission area (equivalent to the above-mentioned light sensing area) to absorb more light and reduce the amount of light reflection in the entire display light transmission area, that is, to reduce the reflectivity of the entire display light transmission area, so as to reduce the difference in light reflectivity between the display area and the display light transmission area and improve the reflectivity uniformity of the entire display panel.

[0037] The display panel 100 and the display device 1000 of the present application will be described in detail below.

[0038] Please refer to Figures 2 to 5The display panel 100 provided by the embodiment of the present application includes a display area AA and a display light-transmitting area SA, and the display area AA is located at least one side of the display light-transmitting area SA. The display panel 100 includes a display substrate 11, a black matrix layer 12 and a light filtering structure layer 13.

[0039] It should be noted that the display area AA is configured to display a picture. The display light-transmitting area SA is configured to display a picture and a corresponding light sensing module. The light outside the display panel 100 is transmitted through the display light-transmitting area SA and sensed by the light sensing module.

[0040] The black matrix layer 12 is arranged on the display substrate 11. The black matrix layer 12 is provided with a plurality of light-transmitting openings 121 and pixel openings 122. Part of the pixel openings 122 is arranged in the display area AA, and part of the pixel openings 122 is arranged in the display light-transmitting area SA. The plurality of light-transmitting openings 121 is arranged in the display light-transmitting area SA, and the light-transmitting openings 121 are arranged between two adjacent pixel openings 122.

[0041] The light filtering structure layer 13 includes a light filtering part 131 and an anti-reflection part 132. One light filtering part 131 is arranged in one pixel opening 122. In the display area AA, two adjacent light filtering parts 131 are arranged apart from each other. The anti-reflection part 132 is arranged in the display light-transmitting area SA and is configured to absorb light. The anti-reflection part 132 is arranged on the side of the black matrix layer 12 away from the display substrate 11. The sidewall of the anti-reflection part 132 is located outside the pixel opening 122 and the light-transmitting opening 121.

[0042] It can be understood that the display panel 100 of the embodiment of the present application is arranged with the anti-reflection part 132 on the black matrix layer 12 in the display light-transmitting area SA to absorb more light to reduce the amount of light reflection of the entire display light-transmitting area SA, that is, to reduce the reflectivity of the entire display light-transmitting area SA, so as to reduce the difference between the reflectivity of the display area AA and the reflectivity of the display light-transmitting area SA and improve the reflectivity uniformity of the entire display panel 100.

[0043] Secondly, the sidewall of the anti-reflection part 132 avoids the light-transmitting opening 121 and the pixel opening 122 to improve the light-out effect and the light-in effect of the large-angle light.

[0044] Optionally, in some embodiments of the present application, the difference between the reflectivity of the display area AA and the reflectivity of the display light-transmitting area SA is less than or equal to 0.5%, which can be 0.5%, 0.4%, 0.3%, 0.2%, 0.1% or 0%.

[0045] It can be understood that the embodiment of the present application adjusts at least one of the coverage area of the anti-reflection part 132, the number of anti-reflection part 132 stacked film layers and the coverage area of the light filtering part 131 in the display area AA to make the reflectivity of the display area AA and the display light-transmitting area SA tend to be balanced.

[0046] The display panel 100 of the embodiment of the present application adopts the black matrix layer 12 in combination with the light filtering structure layer 13 to replace the polarizing sheet, so that the thickness of the display panel 100 can be reduced.

[0047] Optionally, the display substrate 11 can be an electroluminescent display substrate, such as an organic light-emitting display substrate, a quantum dot light-emitting display substrate, or an inorganic light-emitting display substrate.

[0048] Taking the organic light-emitting display substrate as an example, the display substrate 11 includes a driving circuit structure layer, an organic light-emitting layer, and an encapsulation layer. The organic sub-pixel layer is arranged on the driving circuit structure layer, and the encapsulation layer is arranged on the light-emitting side of the organic light-emitting layer. The driving circuit structure layer includes a pixel circuit, and the organic light-emitting layer includes a plurality of sub-pixels, such as red light sub-pixels, green light sub-pixels, and blue light sub-pixels.

[0049] Optionally, one sub-pixel is connected to one pixel circuit. The pixel circuit can be one of a 7T1C, 6T1C, 3T1C, and 8T2C pixel circuit, and the present application does not make any limitation as long as the sub-pixel can be driven to emit light.

[0050] The sub-pixel includes an anode, an organic light-emitting layer, and a cathode. In some embodiments, the sub-pixel further includes a hole injection layer, a hole transport layer, an electron injection layer, and a hole transport layer. The hole injection layer and the hole transport layer are arranged between the organic light-emitting layer and the anode, and the electron injection layer and the hole transport layer are arranged between the organic light-emitting layer and the cathode. However, it is not limited thereto. For example, the sub-pixel can be a single-layer light-emitting layer architecture, or a double-layer light-emitting layer architecture.

[0051] Optionally, in some embodiments, the display substrate 11 can further include a touch structure layer configured to realize a touch function. The touch structure layer is formed on a layer of the encapsulation layer away from the light-emitting device layer. The touch structure layer includes a touch electrode and a touch line connected to the touch electrode. The touch electrode and the touch line are arranged away from the sub-pixel to avoid blocking the sub-pixel.

[0052] The pixel opening 122 of the black matrix layer 12 is directly opposite the sub-pixel, so that the light emitted by the sub-pixel can pass through the pixel opening 122 to realize display. In addition, the black matrix layer 12 covers the wiring tp to shield the wiring tp and improve the appearance visibility and display contrast.

[0053] Optionally, the wiring tp can include a touch electrode and other signal wirings, such as a data line, a scan line, and the like.

[0054] Optionally, in some embodiments, the light filtering part 131 is configured to filter the light emitted by the sub-pixel. There are a plurality of light filtering parts 131, and each light filtering part 131 is arranged in one pixel opening 122.

[0055] The plurality of light filtering portions 131 can be light filtering portions 131 of multiple colors. The colors of the light filtering portions 131 correspond to and are consistent with the colors of the light emitted by the sub-pixels.

[0056] Optionally, in some embodiments, the plurality of light filtering portions 131 includes a first light filtering portion 13r, a second light filtering portion 13g, and a third light filtering portion 13b. The plurality of pixel openings 122 includes a first opening 22a, a second opening 22b, and a third opening 22c. The first light filtering portion 13r is disposed in the first opening 22a, the second light filtering portion 13g is disposed in the second opening 22b, and the third light filtering portion 13b is disposed in the third opening 22c.

[0057] The colors of the first light filtering portion 13r, the second light filtering portion 13g, and the third light filtering portion 13b are different to achieve different colors of light transmitted. That is, the types of the light filtering portions 131 correspond to and are consistent with the types of the colors of the light emitted by the actual sub-pixels, such as three colors of light corresponding to three types of light filtering portions 131, and four colors of light corresponding to four types of light filtering portions 131.

[0058] Optionally, in some embodiments, the first light filtering portion 13r is a red light filtering portion to absorb green light and blue light and transmit red light. The second light filtering portion 13g is a green light filtering portion to absorb red light and blue light and transmit green light. The third light filtering portion 13b is a blue light filtering portion to absorb green light and red light and transmit blue light. However, it is not limited thereto, such as the first light filtering portion 13r being a green light filtering portion, the second light filtering portion 13g being a blue light filtering portion, and the third light filtering portion 13b being a red light filtering portion; or, the first light filtering portion 13r being a blue light filtering portion, the second light filtering portion 13g being a red light filtering portion, and the third light filtering portion 13b being a green light filtering portion.

[0059] The first light filtering portion 13r corresponds to a red light emitting sub-pixel, the second light filtering portion 13g corresponds to a green light emitting sub-pixel, and the third light filtering portion 13b corresponds to a blue light emitting sub-pixel.

[0060] Optionally, in some embodiments of the present application, the anti-reflection portion 132 includes at least one light filtering layer 3a, and one light filtering layer 3a is integrally connected to one light filtering portion 131.

[0061] It can be understood that the light filtering layer 3a can absorb light of a specific wavelength, thereby reducing the amount of light reflected to reduce the reflectivity. Secondly, the light filtering layer 3a is integrally connected to the light filtering portion 131 and formed by one process, which can save the mask process and simplify the preparation process.

[0062] Optionally, in some embodiments of the present application, the display panel 100 further includes a planar layer 14 covering the light filtering structure layer 13 and the black matrix layer 12, and the planar layer 14 also fills the light transmission opening 121. The refractive index of any light filtering layer 3a is greater than the refractive index of the planar layer 14 and less than the refractive index of the black matrix layer 12.

[0063] It can be understood that, in the anti-reflective part 132, the refractive index of any one of the filter layers 3a is greater than the refractive index of the flat layer 14 and less than the refractive index of the black matrix layer 12, so as to ensure that the refractive index of the anti-reflective part 132 is between the refractive index of the flat layer 14 and the refractive index of the black matrix layer 12, so as to reduce the interface reflectivity, thereby reducing the reflectivity of the display light transmission area SA to match the reflectivity of the display area AA.

[0064] Optionally, the flat layer 14 can be an organic film layer or a glue layer.

[0065] It should be noted that, although Figures 3 to 5 The embodiments of the present application take the anti-reflective part 132 including three filter layers 3a as an example, but the embodiments of the present application are not limited thereto, for example, only one filter layer 3a can be included, or two filter layers 3a can be included, etc.

[0066] Optionally, in some embodiments of the present application, any one of the filter layers 3a is provided with a hollow opening 3c, and the side wall of the hollow opening 3c is located outside the pixel opening 122 and the light transmission opening 121. The distance L from the side wall of the hollow opening 3c of any one of the filter layers 3a to the pixel opening 122 is greater than 0 microns. The distance L from the side wall of the hollow opening 3c of any one of the filter layers 3a to the light transmission opening 121 is greater than 0 microns.

[0067] It can be understood that each of the filter layers 3a is provided with a plurality of hollow openings 3c, some of which correspond to and overlap with the pixel opening 122, and some of which correspond to and overlap with the light transmission opening 121. In the hollow opening 3c corresponding to and overlapping with the pixel opening 122, the side wall of the hollow opening 3c is located on the outer circumferential side of the side wall of the pixel opening 122, so that the side wall of the hollow opening 3c does not cover the pixel opening 122, so as to ensure the effective light transmission area of the pixel opening 122. In the hollow opening 3c corresponding to and overlapping with the light transmission opening 121, the side wall of the hollow opening 3c is located on the outer circumferential side of the side wall of the light transmission opening 121, so that the side wall of the hollow opening 3c does not cover the light transmission opening 121, so as to ensure the effective light transmission area of the light transmission opening 121.

[0068] Optionally, the hollow opening 3c, the light transmission opening 121 and the pixel opening 122 are circular openings, but are not limited thereto, for example, can be rectangular, rhombic or other shapes.

[0069] In some embodiments, the anti-reflection portion 132 includes only one light filtering layer 3a. The side wall of the hollowed-out portion 3c is away from the pixel opening 122 and the light-transmitting opening 121, so that the light filtering layer 3a does not cover the pixel opening 122 and the light-transmitting opening 121. For the pixel opening 122, the side wall of the light filtering layer 3a is away from the side wall of the pixel opening 122, so that the light with a large angle can be emitted, thereby ensuring the light emission efficiency of the pixel opening 122. For the light-transmitting opening 121, the side wall of the light filtering layer 3a is away from the side wall of the light-transmitting opening 121, so that the light with a large angle can be emitted, thereby ensuring the light emission efficiency of the light-transmitting opening 121.

[0070] In some embodiments, the anti-reflection portion 132 includes only one light filtering layer 3a, which can be integrally connected with any one of the light filtering portions 131. That is, the anti-reflection portion 132 can be one of red, green, and blue.

[0071] Optionally, in some embodiments of the present application, the anti-reflection portion 132 includes at least two light filtering layers 3a. The at least two light filtering layers 3a are stacked in the thickness direction of the display panel 100, and the colors of any two adjacent light filtering layers 3a are different.

[0072] It can be understood that, compared with the anti-reflection portion 132 including only one light filtering layer 3a, the anti-reflection portion 132 including at least two light filtering layers 3a can absorb more incident light, thereby reducing the reflectivity. Moreover, the colors of the at least two light filtering layers 3a are different, so that the anti-reflection portion 132 can absorb light with a larger range of wavelengths, thereby further reducing the reflectivity.

[0073] Optionally, in some embodiments of the present application, the refractive indices of any two adjacent light filtering layers 3a are different. The thicknesses of the at least two light filtering layers 3a in the anti-reflection portion 132 are different.

[0074] It can be understood that, by setting the refractive indices of the adjacent light filtering layers 3a to be different, the thicknesses of the light filtering layers 3a are adjusted to satisfy the principle of optical interference cancellation, thereby reducing the reflection. Moreover, the more the number of layers with different thicknesses of the light filtering layers 3a, the more wavelengths of the reflected light can be eliminated. Therefore, optionally, the thicknesses of all the light filtering layers 3a in the anti-reflection portion 132 are different, so that more wavelengths of the reflected light can be eliminated, thereby further reducing the reflectivity.

[0075] Optionally, in some embodiments of the present application, the refractive index of the light filtering layer 3a in contact with the black matrix layer 12 is different from the refractive index of the black matrix layer 12. The thickness of the light filtering layer 3a in contact with the black matrix layer 12 is less than the thickness of the black matrix layer 12.

[0076] It can be understood that, based on the refractive index difference between the filter layer 3a and the black matrix layer 12, an interface reflection can be formed between the two, the black matrix layer 12 participates in the interference cancellation of the reflected light, and the thickness and refractive index of all the filter layers 3a can be adjusted to achieve the best antireflection effect.

[0077] Secondly, the thickness of the black matrix layer 12 is large, which can better absorb the incoming external light to further reduce the reflectivity.

[0078] Optionally, in some embodiments of the present application, in any two adjacent filter layers 3a, the side wall of the hollow part 3c of the filter layer 3a away from the black matrix layer 12 is located outside the side wall of the hollow part 3c of the filter layer 3a close to the black matrix layer 12, that is, the distance L from the side wall of the hollow part 3c of the filter layer 3a away from the black matrix layer 12 to the side wall of the hollow part 3c of the filter layer 3a close to the black matrix layer 12 is greater than 0 microns.

[0079] It should be noted that, in the two filter layers 3a, hereinafter the filter layer 3a away from the black matrix layer 12 will be referred to as the upper filter layer 3a, and the filter layer 3a close to the black matrix layer 12 will be referred to as the lower filter layer 3a.

[0080] It can be understood that the side wall of the hollow part 3c of the upper filter layer 3a is located outside the side wall of the hollow part 3c of the lower filter layer 3a, so that the upper filter layer 3a does not cover the side wall of the lower filter layer 3a, reducing the risk of the upper filter layer 3a blocking the large-angle light out and the large-angle light in, to maintain the light out efficiency of the pixel opening 122 and the light in efficiency of the light-transmitting opening 121.

[0081] Please refer to Figure 5 In some embodiments of the present application, in the thickness direction of the display panel 100, the pixel opening 122 and the hollow part 3c corresponding to the pixel opening 122 form a first opening group k1. In the first opening group k1, the side wall distance L between the two hollow parts 3c farthest from the black matrix layer 12 is greater than the side wall distance L between the pixel opening 122 and the hollow part 3c closest to the black matrix layer 12.

[0082] It can be understood that, in the first opening group k1, the sidewall distance L of the two uppermost hollow openings 3c is greater than the sidewall distance L of the lowermost hollow opening 3c and the pixel opening 122, so that the area of the uppermost filter layer 3a is reduced to reduce the light absorption of the uppermost filter layer 3a, thereby avoiding excessive reduction of the reflectivity of the anti-reflection part 132 to better match the reflectivity of the display area AA; secondly, the area of the uppermost filter layer 3a is reduced, so that the area of the second uppermost filter layer 3a exposed by the uppermost hollow opening 3c is increased, and since the color of the uppermost filter layer 3a and the second uppermost filter layer 3a is different, increasing the exposed area of the second uppermost filter layer 3a can reduce the risk of color deviation of the display panel 100.

[0083] It should be noted that when the anti-reflection part 132 includes two filter layers 3a, the two uppermost hollow openings 3c are the hollow openings 3c of the first filter layer 3a and the second filter layer 3a; the lowermost hollow opening 3c is the hollow opening 3c of the first filter layer 3a. Among them, the first filter layer 3a is integrally connected to one of the first filter part 13r, the second filter part 13g and the third filter part 13b, and the second filter layer 3a is integrally connected to the other of the first filter part 13r, the second filter part 13g and the third filter part 13b.

[0084] Optionally, in some embodiments of the present application, in the thickness direction of the display panel 100, the light-transmitting opening 121 and the hollow opening 3c corresponding to the light-transmitting opening 121 form a second opening group k2. In the second opening group k2, the sidewall distance L between the two hollow openings 3c farthest from the black matrix layer 12 is greater than the sidewall distance L between the light-transmitting opening 121 and the hollow opening 3c closest to the black matrix layer 12.

[0085] It can be understood that, in the second opening group k2, the sidewall distance L of the two uppermost hollow openings 3c is greater than the sidewall distance L of the lowermost hollow opening 3c and the light-transmitting opening 121, so that the area of the uppermost filter layer 3a is reduced to reduce the light absorption of the uppermost filter layer 3a, thereby avoiding excessive reduction of the reflectivity of the anti-reflection part 132 to better match the reflectivity of the display area AA; secondly, the area of the uppermost filter layer 3a is reduced, so that the area of the second uppermost filter layer 3a exposed by the uppermost hollow opening 3c is increased, and since the color of the uppermost filter layer 3a and the second uppermost filter layer 3a is different, increasing the exposed area of the second uppermost filter layer 3a can reduce the risk of color deviation of the display panel 100.

[0086] It can be understood that the embodiments of the present application can adjust the distance L between each opening, adjust the area of the filter layer 3a, and then adjust the reflectivity of the anti-reflection part 132 to approach the reflectivity of the display area AA. At the same time, by adjusting the distance L between each opening, the area exposed by each filter layer 3a is adjusted to reduce the risk of display color deviation. For example, the uppermost filter layer 3a is a blue filter layer. If the area of the blue filter layer is too large, there is a risk of displaying blue. Therefore, by adjusting the exposed area of each filter layer 3a, the risk of color deviation can be reduced.

[0087] Optionally, in some embodiments of the present application, the anti-reflection part 132 includes three filter layers 3a, which are a first filter layer 3a1, a second filter layer 3a2 and a third filter layer 3a3. The first filter layer 3a1, the second filter layer 3a2 and the third filter layer 3a3 are sequentially stacked on the black matrix layer 12. The first filter layer 3a1 is integrally connected with the first filter part 13r, the second filter layer 3a2 is integrally connected with the second filter part 13g, and the third filter layer 3a3 is integrally connected with the third filter part 13b.

[0088] The color of the first filter layer 3a1 is one of red, green and blue, the color of the second filter layer 3a2 is another of red, green and blue, and the color of the third filter layer 3a3 is the last of red, green and blue.

[0089] For example, the first filter layer 3a1 and the first filter part 13r are red filter materials, the second filter layer 3a2 and the second filter part 13g are green filter materials, and the third filter layer 3a3 and the third filter part 13b are blue filter materials.

[0090] Optionally, in some embodiments of the present application, the refractive index of the first filter layer 3a1 is less than the refractive index of the black matrix layer 12, the refractive index of the second filter layer 3a2 is less than the refractive index of the first filter layer 3a1, and the refractive index of the third filter layer 3a3 is less than the refractive index of the second filter layer 3a2.

[0091] It can be understood that by setting the gradient refractive index, the effect of reducing reflectivity is optimized by optical interference cancellation effect.

[0092] Optionally, in some embodiments of the present application, the thickness of the first filter layer 3a1 is less than the thickness of the second filter layer 3a2, and the thickness of the second filter layer 3a2 is less than the thickness of the third filter layer 3a3.

[0093] It can be understood that by setting the gradient thickness, the effect of reducing reflectivity is optimized. In addition, the gradient thickness in combination with the gradient refractive index can more flexibly adjust the specific light wavelength to be eliminated, thereby optimizing the effect of reducing reflectivity.

[0094] It should be noted that the antireflection part 132 includes three layers of different color filter layers 3a, so that the antireflection part 132 has a higher antireflection effect. Therefore, in some embodiments of the present application, the area where the first filter layer 3a1, the second filter layer 3a2 and the third filter layer 3a3 completely overlap is equal to the sum of the opening areas of all the light transmission openings 121, so as to avoid the antireflection part 132 reducing the reflectivity of the display light transmission area SA too much, thereby better matching the reflectivity of the display area AA, reducing the reflectivity gap between the two, and improving the uniformity of the reflectivity of the display panel 100.

[0095] In some embodiments, in the display area AA, the minimum spacing V between the filter parts 131 is less than 8 microns. Optionally, the minimum spacing V is 7.9 microns, 7.8 microns, 7.7 microns, 7.6 microns, 7.5 microns, 7.4 microns, 7.3 microns, 7.2 microns, 7.1 microns, 7.0 microns, 6.8 microns, 6.5 microns, 6.2 microns or 6 microns, etc.

[0096] It can be understood that the refractive index difference between the flat layer 14 and the black matrix layer 12 is large, so that the contact interface reflectivity between the two is large, thereby increasing the reflectivity of the display area AA. Therefore, the refractive index of the filter part 131 is between the flat layer 14 and the black matrix layer 12, so that by reducing the minimum spacing V between the filter parts 131, the filter parts 131 extend to cover the surface of the black matrix layer 12 away from the display substrate 11, and the area of the contact interface between the flat layer 14 and the black matrix layer 12 is reduced, so as to reduce the reflectivity of the display area AA, to match the display light transmission area SA whose reflectivity is reduced too much, thereby reducing the reflectivity gap between the display area AA and the display light transmission area SA, and finally achieving the effect of reducing the overall reflectivity of the display panel 100.

[0097] In some embodiments, in the display area AA, the minimum spacing V between the filter parts 131 is greater than or equal to 8 microns. Optionally, the minimum spacing V is 8 microns, 8.1 microns, 8.2 microns, 8.2 microns, 8.4 microns, 8.5 microns, 8.6 microns, 8.7 microns, 8.8 microns, 8.9 microns, 9 microns, 9.2 microns, 9.5 microns, 9.8 or 10 microns, etc.

[0098] It can be understood that increasing the minimum spacing V between the filter parts 131 increases the contact area of the flat layer 14 and the black matrix layer 12, so as to increase the area of the reflection interface between the two, thereby increasing the reflectivity of the display area AA, and in combination with the reduced reflectivity of the display light transmission area SA, the reflectivity gap between the display area AA and the display light transmission area SA can also be reduced.

[0099] Please refer to Figure 6Correspondingly, the application also provides a display device 1000, which comprises a photosensitive module 200 and the display panel 100 of any one of the above-mentioned embodiments, and the photosensitive module 200 is arranged on the backlight side of the display panel 100 and corresponds to the display light-transmitting area SA.

[0100] It should be noted that the structure of the display panel 100 of the display device 1000 of the application is similar or identical to that of the display panel 100 of any one of the above-mentioned embodiments, and specific details can be referred to the description of the display panel 100 of any one of the above-mentioned embodiments. Figures 1 to 5

[0101] Optionally, the photosensitive module 200 can be a camera module.

[0102] Optionally, the display device 1000 can be applied to various products and can be used in the various products, including, for example, televisions, notebook computers, monitors, billboards, Internet of Things devices, and portable electronic devices including mobile phones, smart phones, tablet personal computers, mobile communication terminals, electronic organizers, electronic books, portable multimedia players, navigation, and ultra-mobile personal computers.

[0103] In addition, the display device 1000 according to some embodiments can be applied to wearable devices and can be used in wearable devices, including smart watches, watch phones, glasses-type displays, and head-mounted displays. In addition, according to some embodiments, the display device 1000 can be applied to an instrument panel for a car, a display screen in a central instrument panel or a central information display arranged on the instrument panel for a car, an indoor mirror display instead of a car side mirror, and a display of an entertainment system arranged on the back of the front seat for the rear seat passengers in a car.

[0104] The display panel 100 of the display device 1000 of the application comprises a display substrate 11, a black matrix layer 12, and a filter structure layer 13. The black matrix layer 12 is provided with a plurality of light-transmitting openings 121 and pixel openings 122. Part of the pixel openings 122 are arranged in the display area AA, and part of the pixel openings 122 are arranged in the display light-transmitting area SA. The plurality of light-transmitting openings 121 are arranged in the display light-transmitting area SA, and the light-transmitting openings 121 are arranged between two adjacent pixel openings 122. The filter structure layer 13 comprises filter portions 131 and anti-reflection portions 132. One filter portion 131 is arranged in one pixel opening 122. In the display area AA, two adjacent filter portions 131 are arranged apart from each other. The anti-reflection portion 132 is arranged in the display light-transmitting area SA and is configured to absorb light. The anti-reflection portion 132 is arranged on the side of the black matrix layer 12 away from the display substrate 11.

[0105] ​It can be understood that, based on the display area AA, the filter portions 131 are arranged to be spaced apart, so that part of the light is reflected at the interface between the filter portions 131 and the surface of the black matrix layer 12, and part of the light is absorbed by the filter portions 131 and the black matrix layer 12. In the display light transmission area SA, the light transmission opening 121 is arranged, so that a large amount of light is not absorbed and enters the light transmission opening 121, and at this time the light reflectivity of the light transmission opening 121 area is high. Based on this, the embodiment of the present application is arranged on the black matrix layer 12 in the display light transmission area SA. The anti-reflection portion 132 is arranged to absorb more light to reduce the light reflection amount of the entire display light transmission area SA, that is, to reduce the reflectivity of the entire display light transmission area SA, so as to reduce the difference between the light reflectivity of the display area AA and the display light transmission area SA, and improve the reflectivity uniformity of the entire display panel 100.

[0106] The above describes in detail the display panel and display device provided by the embodiments of the present application. The principles and implementation manners of the present application are described by applying specific examples. The above description of the embodiments is only used to help understand the method of the present application and its core idea. Meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manner and application range can be changed. In summary, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A display panel comprising a display region and a display light-transmitting region, the display region being located at least one side of the display light-transmitting region, characterized in that, The display panel comprises: a display substrate; a black matrix layer disposed on the display substrate, the black matrix layer being provided with a plurality of light-transmissive openings and pixel openings, part of the pixel openings being disposed in the display area, part of the pixel openings being disposed in the display light-transmissive area, and a plurality of the light-transmissive openings being disposed between two adjacent pixel openings in the display light-transmissive area; a light-filtering structure layer comprising light-filtering portions and anti-reflection portions, one light-filtering portion being disposed in one pixel opening, and two adjacent light-filtering portions being spaced apart in the display area; the anti-reflection portions are disposed in the display light-transmissive area and are configured to absorb light, the anti-reflection portions being disposed on a side of the black matrix layer away from the display substrate, and the sidewalls of the anti-reflection portions being located outside the pixel openings and the light-transmissive openings.

2. The display panel of claim 1, wherein, The anti-reflection portions comprise at least one light-filtering layer, and one light-filtering layer is integrally connected with one light-filtering portion.

3. The display panel of claim 2, wherein, Any light-filtering layer is provided with a hollow opening, the sidewalls of the hollow openings are located outside the pixel openings and the light-transmissive openings, the distance between the sidewalls of the hollow openings of any light-filtering layer and the pixel openings is greater than 0 microns, and the distance between the sidewalls of the hollow openings of any light-filtering layer and the light-transmissive openings is greater than 0 microns.

4. The display panel of claim 3, wherein, The anti-reflection portions comprise at least two light-filtering layers, the at least two light-filtering layers are stacked in the thickness direction of the display panel, and the colors of any two adjacent light-filtering layers are different.

5. The display panel of claim 4, wherein, In any two adjacent light-filtering layers, the sidewalls of the hollow openings of the light-filtering layer away from the black matrix layer are located outside the sidewalls of the hollow openings of the light-filtering layer close to the black matrix layer, and the distance between the sidewalls of the hollow openings of the light-filtering layer away from the black matrix layer and the sidewalls of the hollow openings of the light-filtering layer close to the black matrix layer is greater than 0 microns.

6. The display panel of claim 5, wherein, In the thickness direction of the display panel, the pixel openings and the hollow openings corresponding to the pixel openings form a first opening group, and in the first opening group, the sidewall distance between the two hollow openings farthest from the black matrix layer is greater than the sidewall distance between the pixel openings and the hollow opening closest to the black matrix layer.

7. The display panel of claim 5, wherein, In the thickness direction of the display panel, the light-transmissive openings and the hollow openings corresponding to the light-transmissive openings form a second opening group, and in the second opening group, the sidewall distance between the two hollow openings farthest from the black matrix layer is greater than the sidewall distance between the light-transmissive openings and the hollow opening closest to the black matrix layer.

8. The display panel of claim 4, wherein, The anti-reflection portions comprise three light-filtering layers, the three light-filtering layers being a first light-filtering layer, a second light-filtering layer, and a third light-filtering layer, the first light-filtering layer, the second light-filtering layer, and the third light-filtering layer being sequentially stacked on the black matrix layer, a plurality of the light-filtering portions comprising a first light-filtering portion, a second light-filtering portion, and a third light-filtering portion, the first light-filtering layer being integrally connected with the first light-filtering portion, the second light-filtering layer being integrally connected with the second light-filtering portion, and the third light-filtering layer being integrally connected with the third light-filtering portion; The color of the first filter layer is one of red, green and blue, the color of the second filter layer is another of red, green and blue, and the color of the third filter layer is the last of red, green and blue; The area of the first filter layer, the second filter layer and the third filter layer completely overlapping is equal to the sum of the opening areas of all the light transmission openings.

9. The display panel according to any one of claims 2-8, characterized in that, The difference between the reflectivity of the display area and the reflectivity of the display light transmission area is less than or equal to 0.5%.

10. The display panel according to any one of claims 2-8, wherein, The display panel further comprises a planar layer covering the filter structure layer and the black matrix layer, the planar layer also filling the light transmission openings, the refractive index of any filter layer being greater than the refractive index of the planar layer and less than the refractive index of the black matrix layer.

11. A display device, characterized by comprising: The display panel comprises a photosensitive module and a display panel as claimed in any one of claims 1-10, the photosensitive module being arranged on the backlight side of the display panel and corresponding to the display light transmission area.

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