WO2024087993A1 - 显示模组和显示装置 - Google Patents
显示模组和显示装置 Download PDFInfo
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- WO2024087993A1 WO2024087993A1 PCT/CN2023/121553 CN2023121553W WO2024087993A1 WO 2024087993 A1 WO2024087993 A1 WO 2024087993A1 CN 2023121553 W CN2023121553 W CN 2023121553W WO 2024087993 A1 WO2024087993 A1 WO 2024087993A1
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- 230000003287 optical effect Effects 0.000 claims abstract description 27
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- 102100026388 L-amino-acid oxidase Human genes 0.000 description 2
- 101100012902 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) FIG2 gene Proteins 0.000 description 2
- 101100233916 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) KAR5 gene Proteins 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
Definitions
- the present disclosure relates to the technical field of display product manufacturing, and in particular to a display module and a display device.
- under-screen fingerprint recognition technology solutions There are currently two types of under-screen fingerprint recognition technology solutions: optical and ultrasonic.
- the ultrasonic type uses an under-screen ultrasonic module to detect the different densities between the ridges (skin) and depressions (air) of fingerprint wrinkles, thereby constructing a 3D graphic for comparison with the graphics already on the terminal, but because it cannot pass through the air layer, its application is limited. Therefore, most under-screen fingerprint recognition on the market uses an optical under-screen fingerprint recognition solution. This solution uses the self-luminous characteristics of the OLED screen.
- the finger When the finger is illuminated by a light source, it is projected onto a charge-coupled device with a microlens, thereby forming a digital multi-grayscale fingerprint image with black ridges and white valleys that can be processed by the device algorithm.
- the COE technology that currently replaces the polarizer reduces the module thickness of the screen, which is beneficial to the bending performance of the folding screen.
- the current pol-less (remove polarizer) structure uses a nearly opaque BM (black matrix), which reduces the transmittance of the non-pixel area.
- the present disclosure provides a display module and a display device to solve the problem of low transmittance in non-pixel areas due to the arrangement of a black matrix.
- a display module comprising:
- a substrate having a plurality of pixel units, each of which includes a plurality of sub-pixels of different colors
- An optical fingerprint recognition structure comprising a plurality of optical sensors disposed on the substrate, for converting fingerprint reflected light into an electrical signal;
- a filter layer comprising a plurality of filter units, each of which comprises a plurality of filter units of different colors corresponding to a plurality of sub-pixels;
- the light shielding layer includes a plurality of light shielding parts located between two adjacent filter units, and at least part of the light shielding parts are provided with first light-transmitting holes to transmit the fingerprint reflected light to the optical sensor.
- the pixel unit includes a pixel setting area and a non-pixel setting area, and the orthographic projection of at least one of the first light-transmitting holes on the substrate is located within the orthographic projection of the non-pixel setting area of the pixel unit on the substrate.
- one of the pixel units includes a first pixel and a second pixel, the first pixel includes a first color sub-pixel and a second color sub-pixel, the second pixel includes the first color sub-pixel and a third color sub-pixel, and the first color sub-pixel and the second color sub-pixel in the first pixel and the first color sub-pixel and the third color sub-pixel in the second pixel are distributed in a cross shape;
- the non-pixel area between the first color sub-pixel and the second color sub-pixel in the first pixel and the first color sub-pixel and the third sub-pixel in the second pixel is projected on the base substrate as a first projection area, and the first light-transmitting hole is projected on the base substrate in the first projection area.
- the first color sub-pixel of the first pixel and the first color sub-pixel of the second pixel are relatively arranged, and along a second direction perpendicular to the first direction, the second color sub-pixel and the third color sub-pixel are relatively arranged, and the first direction is a direction parallel to the row direction of the pixel unit.
- the first color sub-pixel is a green sub-pixel
- the second color sub-pixel is a blue sub-pixel
- the third color sub-pixel is a red sub-pixel
- the cross-sectional shape of the first color sub-pixel or the second color sub-pixel or the third color sub-pixel is an elliptical structure
- the major axis direction of the elliptical structure is parallel to the row direction or the column direction of the pixel unit
- the first light-transmitting hole includes a first edge arranged close to the elliptical structure, and the first edge moves in the opposite direction away from the elliptical structure, so that the first light-transmitting hole is an irregular structure.
- a cross-sectional shape of the first light-transmitting hole is a convex polygon, and the first edge is a straight line structure parallel to the short axis direction of the elliptical structure.
- the elliptical structure in a direction parallel to the substrate, includes A second edge is opposite to the first edge, and a distance between the first edge and the corresponding sub-pixel is the same as a distance between the second edge and the corresponding sub-pixel.
- the base substrate further includes a metal wiring, and the orthographic projection of the first light-transmitting hole on the base substrate is outside the orthographic projection of the metal wiring on the base substrate.
- the pixel definition layer is arranged on the base substrate, and includes a plurality of pixel openings corresponding to the plurality of sub-pixels, and a non-opening area located between adjacent pixel openings, wherein the non-opening area is provided with a plurality of second light-transmitting holes arranged one-to-one corresponding to the first light-transmitting holes.
- the orthographic projection of the first light-transmitting hole on the base substrate completely covers the orthographic projection of the second light-transmitting hole on the base substrate.
- an area of an orthographic projection of the first light-transmitting hole on the base substrate is larger than an area of an orthographic projection of the second light-transmitting hole on the base substrate.
- a light-emitting layer is formed in the pixel opening of the pixel definition layer, and in a direction parallel to the base substrate, a distance D between two adjacent first light-transmitting holes satisfies the following formula: Wherein, h is the distance between the light-emitting layer and the light-shielding layer, and n is the refractive index of the top layer of the display module.
- the embodiment of the present disclosure further provides a display device, comprising the above-mentioned display module.
- the beneficial effect of the present disclosure is that a first light-transmitting hole is provided on the light-shielding layer to improve light transmittance, thereby improving the accuracy of optical fingerprint recognition.
- FIG1 is a first structural diagram of a display module in an embodiment of the present disclosure
- FIG2 is a second structural diagram of a display module in an embodiment of the present disclosure.
- FIG3 is a third structural diagram of a display module in an embodiment of the present disclosure.
- FIG4 is a schematic diagram showing the arrangement of sub-pixels in an embodiment of the present disclosure.
- FIG5 is a schematic diagram showing the position of the fingerprint area
- FIG6 is a schematic diagram showing the projection relationship between the pixel definition layer and the light shielding layer
- FIG7 is a schematic diagram showing the projection relationship between the anode, the pixel definition layer and the light shielding layer;
- FIG8 is a schematic diagram showing the projection relationship among the filter layer, the anode, the pixel definition layer and the light shielding layer.
- this embodiment provides a display module, including:
- the substrate 1 has a plurality of pixel units, each of which includes a plurality of sub-pixels of different colors;
- the optical fingerprint recognition structure includes a plurality of optical sensors 7 disposed on the substrate 1 and used for converting fingerprint reflected light into an electrical signal;
- a filter layer comprising a plurality of filter units, each of which comprises a plurality of filter parts 5 of different colors corresponding to a plurality of sub-pixels;
- the light shielding layer 4 includes a plurality of light shielding parts located between two adjacent light filtering parts, and at least some of the light shielding parts are provided with first light transmission holes 41 to transmit the fingerprint reflected light to the optical sensor 7 .
- the light emitted by the light-emitting layer 3 is reflected by the fingerprint and then received and identified by the optical sensor 7. Due to the provision of the light-shielding layer, the light transmittance is reduced.
- the first light-transmitting hole 41 is provided on the light-shielding layer to increase the light transmittance, thereby improving the accuracy of optical fingerprint recognition.
- the pixel unit includes a pixel setting area and a non-pixel setting area, and the orthographic projection of at least one of the first light-transmitting holes 41 on the base substrate 1 is located within the orthographic projection of the non-pixel setting area of the pixel unit on the base substrate 1.
- the first light-transmitting hole 41 is disposed in a non-pixel arrangement area to avoid affecting the display effect.
- the light shielding layer includes a light shielding portion located between two adjacent filter portions 5, that is, the function of the light shielding portion is to prevent light leakage, and the setting of the first light-transmitting hole 41 cannot affect the light shielding effect of the light shielding layer. Therefore, in some embodiments, the first light-transmitting hole 41 is not provided on the light shielding portion between any two adjacent filter portions.
- a pixel unit includes a first pixel and a second pixel, the first pixel includes a first color sub-pixel and a second color sub-pixel, the second pixel includes the first color sub-pixel and a third color sub-pixel, and the first color sub-pixel and the second color sub-pixel in the first pixel and the first color sub-pixel and the third color sub-pixel in the second pixel are arranged in a cross shape;
- the non-pixel area between the first color sub-pixel and the second color sub-pixel in the first pixel and the first color sub-pixel and the third sub-pixel in the second pixel is projected on the base substrate 1 as a first projection area, and the first light-transmitting hole 41 is projected on the base substrate 1 in the first projection area.
- the first pixel and the second pixel each include sub-pixels of two different colors, and the first pixel and the second pixel include a sub-pixel with the same color, namely, the first color sub-pixel.
- the first sub-pixel column includes a plurality of first color sub-pixels
- the second sub-pixel column includes a plurality of second color sub-pixels and third color sub-pixels that are staggered, and in the column direction of the pixel unit, the orthographic projection of the first color sub-pixel on the second sub-pixel column is located between two adjacent second color sub-pixels and the third color sub-pixels.
- the first pixel includes a green sub-pixel and a red sub-pixel
- the second pixel includes a blue sub-pixel and a green sub-pixel.
- one pixel unit includes a green sub-pixel G1 , a red sub-pixel R1 , a blue sub-pixel B1 , and a green sub-pixel G4 .
- the orthographic projection of the center point of the first color sub-pixel on the second sub-pixel column is located at the center of a line connecting the center points of two adjacent second color sub-pixels and the center point of the third color sub-pixel.
- one of the pixel units includes the first pixel and the second pixel, that is, one of the pixel units includes four sub-pixels
- the orthographic projection of the first light-transmitting hole 41 on the base substrate 1 is located inside the area enclosed by the orthographic projections of the four sub-pixels, that is, the orthographic projections of the four sub-pixels are surrounded by the periphery of the orthographic projection of the corresponding first light-transmitting hole 41 on the base substrate 1.
- the number of the first light-transmitting holes 41 corresponding to one pixel unit can be set according to actual needs and is related to the size of the non-pixel area formed by multiple sub-pixels in one pixel unit.
- one first light-transmitting hole 41 corresponds to one pixel unit, but is not limited to this.
- the plurality of sub-pixels in a pixel unit may be various arrangements of the plurality of sub-pixels in a pixel unit.
- first direction (refer to the X direction in FIG. 4 )
- first color sub-pixel of the first pixel and the first color sub-pixel of the second pixel are arranged relative to each other
- second direction perpendicular to the first direction (refer to the Y direction in FIG. 4 )
- the second color sub-pixel and the third color sub-pixel are arranged relative to each other
- the first direction is a direction parallel to the row direction of the pixel unit.
- the first color sub-pixel is a green sub-pixel
- the second color sub-pixel is a blue sub-pixel
- the third color sub-pixel is a red sub-pixel
- the cross-sectional shape of the first color sub-pixel or the second color sub-pixel or the third color sub-pixel is an elliptical structure
- the major axis direction of the elliptical structure is parallel to the row direction or the column direction of the pixel unit
- the first light-transmitting hole 41 includes a first edge arranged close to the elliptical structure, and the first edge moves in the opposite direction away from the elliptical structure, so that the first light-transmitting hole 41 is an irregular structure.
- a plurality of the pixel units constitute a pixel group, that is, form a pixel period.
- a pixel period if the shapes of one of the first sub-color sub-pixels, the second sub-color sub-pixels, and the third sub-pixels located at different positions are different, then the space intervals between the sub-pixel and the other sub-pixels in the second sub-color sub-pixel and the third sub-pixel are different. Accordingly, the shape, position, size, and other factors of the first light-transmitting hole 41 corresponding to one of the pixel units will be different.
- the second color sub-pixel is an elliptical structure
- the The long axis direction of the elliptical structure is parallel to the row direction of the pixel unit
- the short axis direction of the elliptical structure is parallel to the column direction of the pixel unit.
- the cross-sectional shape of the first light-transmitting hole 41 in the direction parallel to the substrate 1 is partially circular and retracted, that is, the part close to the elliptical structure is retracted, which is equivalent to a circle with a notch formed by a part missing from the circle.
- the cross-sectional shape of the first light-transmitting hole 41 is a convex polygon protruding toward the side away from the elliptical structure of the cross-sectional shape, and the first edge 401 is retracted so that the angle between the first edge 401 and the edge adjacent thereto is less than or equal to 90 degrees, and the angle between any two adjacent edges of the other edges except the first edge 401 is an obtuse angle.
- the first edge 401 is a straight line structure parallel to the short axis direction of the elliptical structure, but the present invention is not limited thereto.
- the elliptical structure in a direction parallel to the base substrate 1, includes a second edge opposite to the first edge 401, and the distance between the first edge 401 and the corresponding sub-pixel is the same as the distance between the second edge and the corresponding sub-pixel. In this way, in the long axis direction of the elliptical structure, the distance between the first light-transmitting hole 41 and the sub-pixel adjacent thereto is the same.
- the base substrate 1 further includes a metal trace, and the orthographic projection of the first light-transmitting hole 41 on the base substrate 1 is outside the orthographic projection of the metal trace on the base substrate 1.
- the metal trace is prevented from interfering with the optical fingerprint recognition.
- the display module further includes:
- the pixel definition layer 2 is arranged on the base substrate 1, and includes a plurality of pixel openings 22 corresponding to the plurality of sub-pixels, and a non-opening area located between adjacent pixel openings 22, wherein the non-opening area is provided with a plurality of second light-transmitting holes 21 arranged one-to-one corresponding to the first light-transmitting holes 41.
- the light shielding layer is arranged on the side of the pixel definition layer 2 away from the base substrate 1, and a light emitting layer 3 is formed in the pixel opening 22 of the pixel definition layer 2.
- the light emitted by the light emitting layer 3 is incident on the base substrate 1 after being reflected by the fingerprint.
- the optical fingerprint recognition structure performs fingerprint recognition, and the optical fingerprint sensor is arranged on the side of the base substrate 1 away from the light-shielding layer, that is, the fingerprint reflected light needs to pass through the light-shielding layer 4 and the pixel definition layer 2 in sequence before being recognized by the optical sensor 7.
- the orthographic projection of the optical sensor 7 on the base substrate 1 is located within the orthographic projection of the non-opening area on the base substrate 1.
- the second light-transmitting hole 21 is arranged on the pixel definition layer 2, which cooperates with the first light-transmitting hole 41 to further improve the transmittance of the fingerprint reflected light.
- the second light-transmitting hole is not provided on the pixel definition layer 2, and the pixel definition layer 2 is made of a whole light-transmitting material to avoid blocking the fingerprint reflected light from being incident on the optical sensor and affecting the recognition of optical indications.
- the second light-transmitting hole 41 is additionally provided on the pixel definition layer 2.
- the orthographic projection of the first light-transmitting hole 41 on the base substrate 1 completely covers the orthographic projection of the second light-transmitting hole 21 on the base substrate 1. It is avoided that the first light-transmitting hole 41 partially overlaps with the second light-transmitting hole 21, resulting in that part of the fingerprint reflected light cannot pass through the second light-transmitting hole 21, that is, it is avoided to reduce the transmittance of the fingerprint emitted light.
- the area of the orthographic projection of the first light-transmitting hole 41 on the base substrate 1 is larger than the area of the orthographic projection of the second light-transmitting hole 21 on the base substrate 1. This effectively ensures that the light passing through the first light-transmitting hole 41 passes through the second light-transmitting hole 21 to the maximum extent, thereby improving the transmittance of light.
- a first opening 42 is provided on the shading layer 4, the filter portion 5 is formed on the first opening 42, and the area of the orthographic projection of the pixel opening 22 on the pixel definition layer 2 on the base substrate 1 is smaller than the area of the orthographic projection of the first opening 42 on the base substrate 1.
- the display module further includes an anode 9 , and an orthographic projection area of the anode 9 on the base substrate 1 is larger than an orthographic projection area of the first opening 42 on the base substrate 1 .
- the area of the orthographic projection of the filter portion 5 on the base substrate is larger than the area of the orthographic projection of the first opening 42 on the base substrate 1 .
- a light emitting layer is formed in the pixel opening 22 of the pixel definition layer 2. 3.
- the distance D between two adjacent first light-transmitting holes 41 satisfies the following formula: Wherein, h is the distance between the light emitting layer 3 and the light shielding layer, and n is the refractive index of the top layer of the display module.
- the refractive index of the top material of the display module i.e., the cover plate 6) is n, and the minimum angle at which the light from the luminescent material layer 3 overflowing from the first light-transmitting hole 41 is totally reflected at the air interface is:
- n1 is the refractive index n of the cover plate 6, and n2 is the refractive index of air, both of which are 1.
- the reflection angle ⁇ in order to prevent light leakage from the first light-transmitting holes 41 , the reflection angle ⁇ must be satisfied, that is, in the direction parallel to the base substrate 1 , the distance D between two adjacent first light-transmitting holes 41 satisfies the following formula:
- h is the distance between the light-emitting material layer 3 and the light-shielding layer
- n is the refractive index of the top layer of the display module.
- the embodiment of the present disclosure further provides a display device, comprising the above-mentioned display module.
- an OC adhesive layer is disposed on the side of the filter layer away from the base substrate 1 (the OC adhesive layer 10 is a transparent resin material (Over Coat, OC) for encapsulating and flattening the color filter layer), and an OCA optical adhesive layer 20 is disposed between the OC adhesive layer 10 and the cover plate 6.
- the OC adhesive layer 10 is a transparent resin material (Over Coat, OC) for encapsulating and flattening the color filter layer
- an OCA optical adhesive layer 20 is disposed between the OC adhesive layer 10 and the cover plate 6.
- the side of the filter layer away from the base substrate 1 is sequentially stacked with an OC adhesive layer 10 , an optical adhesive layer 20 , an OC adhesive layer 10 , an optical adhesive layer 20 and a cover plate 6 .
- the cover plate 6 includes a fingerprint area 100 , the fingerprint area 100 is 30 mm away from the bottom of the screen (the nearest edge of the cover plate), and the size of the fingerprint area 100 is 9 mm*9 mm, but not limited thereto.
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Abstract
本公开涉及一种显示模组，包括：衬底基板，具有多个像素单元，每个所述像素单元包括多个不同颜色的子像素；光学指纹识别结构，包括设置于所述衬底基板上的多个光学传感器，用于将指纹反射光转换为电信号；滤光层，包括多个滤光单元，每个所述滤光单元包括与多个子像素相对应的多个不同颜色的滤光部；遮光层，包括多个位于相邻两个滤光部之间的遮光部，至少部分所述遮光部上设置有第一透光孔，以透过所述指纹反射光到所述光学传感器。本公开还涉及一种显示装置。
Description
相关申请的交叉引用
本申请主张在2022年10月27日在中国提交的中国专利申请号No.202211325449.6的优先权，其全部内容通过引用包含于此。
本公开涉及显示产品制作技术领域，尤其涉及一种显示模组和显示装置。
目前的屏下指纹识别技术方案有光学式和超声波式两种，超声波式利用屏下超声波模块来检测指纹褶皱凸起(皮肤)和凹陷(空气)之间的不同密度，从而构建出一个3D图形，和已经存在终端上的图形做对比，但因其无法穿过空气层，使其应用受限制。因此市场上的屏下指纹识别多采用光学式屏下指纹识别方案，这种方案借助OLED屏幕的自发光特性，手指在光源照射下，用微透镜将其投射在电荷耦合器件上，进而形成脊线呈黑色、谷线呈白色的数字化的可被设备算法处理的多灰度指纹图像。目前代替偏光片的COE技术降低了屏幕的模组厚度，有利于折叠屏的弯折性能提升。但是现在的pol-less(去除偏光片)结构中由于使用了几乎不透光的BM(黑矩阵)，使得非像素区的透过率降低。
发明内容
为了解决上述技术问题，本公开提供一种显示模组和显示装置，解决由于黑矩阵的设置，非像素区的透过率低的问题。
为了达到上述目的，本公开实施例采用的技术方案是：一种显示模组，包括：
衬底基板，具有多个像素单元，每个所述像素单元包括多个不同颜色的子像素；
光学指纹识别结构，包括设置于所述衬底基板上的多个光学传感器，用于将指纹反射光转换为电信号；
滤光层，包括多个滤光单元，每个所述滤光部包括与多个子像素相对应的多个不同颜色的滤光部；
遮光层，包括多个位于相邻两个滤光单元之间的遮光部，至少部分所述遮光部上设置有第一透光孔，以透过所述指纹反射光到所述光学传感器。
可选的，所述像素单元为包括像素设置区和非像素设置区，至少一个所述第一透光孔在所述衬底基板上的正投影位于一个所述像素单元的所述非像素设置区在所述衬底基板的正投影内。
可选的，一个所述像素单元包括第一像素和第二像素，所述第一像素包括第一颜色子像素和第二颜色子像素，所述第二像素包括所述第一颜色子像素和第三颜色子像素，所述第一像素中的所述第一颜色子像素和第二颜色子像素与所述第二像素中的所述第一颜色子像素和所述第三颜色子像素呈十字型分布；
所述第一像素中的所述第一颜色子像素和第二颜色子像素与所述第二像素中的所述第一颜色子像素和所述第三子像素之间的非像素区域在所述衬底基板上的正投影为第一投影区，所述第一透光孔在所述衬底基板上的正投影位于所述第一投影区。
可选的，沿第一方向，所述第一像素的所述第一颜色子像素和所述第二像素的所述第一颜色子像素相对设置，沿与所述第一方向相垂直的第二方向，所述第二颜色子像素和所述第三颜色子像素相对设置，所述第一方向为与所述像素单元的行方向相平行的方向。
可选的，所述第一颜色子像素为绿色子像素，所述第二颜色子像素为蓝色子像素，所述第三颜色子像素为红色子像素。
可选的，在平行于所述衬底基板的方向上，所述第一颜色子像素或者第二颜色子像素或者所述第三颜色子像素的截面形状为椭圆形结构，所述椭圆形结构的长轴方向与所述像素单元的行方向或列方向相平行，在所述椭圆结构的长轴方向上，所述第一透光孔包括靠近所述椭圆形结构设置的第一边缘，所述第一边缘向远离所述椭圆形结构的反向移动，使得所述第一透光孔为异形结构。
可选的，在平行于所述衬底基板的方向上，所述第一透光孔的截面形状为凸多边形，所述第一边缘为与所述椭圆形结构的短轴方向相平行的直线结构。
可选的，在平行于所述衬底基板的方向上，所述椭圆形结构包括与所述第
一边缘相对的第二边缘，且所述第一边缘与相应的子像素的距离和所述第二边缘与相应的子像素的距离相同。
可选的，所述衬底基板上还包括金属走线，所述第一透光孔在所述衬底基板上的正投影位于所述金属走线在所述衬底基板上的正投影之外。
可选的，还包括：
像素定义层，设置于所述衬底基板上，包括与多个所述子像素对应的多个像素开口，和位于相邻像素开口之间的非开口区，所述非开口区设置有与所述第一透光孔一一对应设置的多个第二透光孔。
可选的，所述第一透光孔在所述衬底基板上的正投影完全覆盖所述第二透光孔在所述衬底基板上的正投影。
可选的，所述第一透光孔在所述衬底基板上的正投影的面积大于所述第二透光孔在所述衬底基板上的正投影的面积。
可选的，所述像素定义层的像素开口内形成有发光层，在平行于所述衬底基板的方向上，相邻两个所述第一透光孔的间距D满足以下公式：其中，h为发光层与所述遮光层之间的距离，n为所述显示模组的顶层的折射率。
本公开实施例还提供一种显示装置，包括上述的显示模组。
本公开的有益效果是：在遮光层上设置第一透光孔，以提高光透过率，从而提高光学指纹识别的精度。
图1表示本公开实施例中的显示模组的结构示意图一；
图2表示本公开实施例中的显示模组的结构示意图二；
图3表示本公开实施例中的显示模组的结构示意图三；
图4表示本公开实施例中子像素的排布示意图；
图5表示指纹区的位置示意图；
图6表示像素定义层和遮光层的投影关系示意图；
图7表示阳极、像素定义层和遮光层的投影关系示意图；
图8表示滤光层、阳极、像素定义层和遮光层的投影关系示意图。
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本公开保护的范围。
在本公开的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
参考图1-图8，本实施例提供一种显示模组，包括：
衬底基板1，具有多个像素单元，每个所述像素单元包括多个不同颜色的子像素；
光学指纹识别结构，包括设置于所述衬底基板1上的多个光学传感器7，用于将指纹反射光转换为电信号；
滤光层，包括多个滤光单元，每个所述滤光单元包括与多个子像素相对应的多个不同颜色的滤光部5；
遮光层4，包括多个位于相邻两个滤光部之间的遮光部，至少部分所述遮光部上设置有第一透光孔41，以透过所述指纹反射光到所述光学传感器7。
发光层3发出的光经指纹反射后，被所述光学传感器7接收并识别，由于遮光层的设置，降低了光透过率，本实施例中，在所述遮光层上设置所述第一透光孔41，以提高光透过率，从而提高光学指纹识别的精度。
示例性的实施方式中，所述像素单元为包括像素设置区和非像素设置区，至少一个所述第一透光孔41在所述衬底基板1上的正投影位于一个所述像素单元的所述非像素设置区在所述衬底基板1的正投影内。
所述第一透光孔41设置在非像素设置区，避免影响显示效果。
所述遮光层包括位于相邻两个滤光部5之间的遮光部，即所述遮光部的作用在于防止漏光，所述第一透光孔41的设置不能影响所述遮光层的遮光效果，因此，在一些实施方式中，并不是任意相邻两个相邻滤光部之间的遮光部上均设置有所述第一透光孔41。并且所述衬底基板1上的所述像素单元中的子像素的排布方式可以有多种，不同的子像素的排布方式、形状等因素也会影响所述第一透光孔41的位置、大小、形状等参数的设置，示例性的实施方式中，一个所述像素单元包括第一像素和第二像素，所述第一像素包括第一颜色子像素和第二颜色子像素，所述第二像素包括所述第一颜色子像素和第三颜色子像素，所述第一像素中的所述第一颜色子像素和第二颜色子像素与所述第二像素中的所述第一颜色子像素和所述第三颜色子像素呈十字型分布；
所述第一像素中的所述第一颜色子像素和第二颜色子像素与所述第二像素中的所述第一颜色子像素和所述第三子像素之间的非像素区域在所述衬底基板1上的正投影为第一投影区，所述第一透光孔41在所述衬底基板1上的正投影位于所述第一投影区。
本实施方式中，所述第一像素和所述第二像素均包括两种不同颜色的子像素，且所述第一像素和所述第二像素中包括一个具有相同颜色的子像素，即所述第一颜色子像素，在进行排布时，沿着所述像素单元的行方向，包括多个交错设置的第一子像素列和第二子像素列，所述第一子像素列包括多个所述第一颜色子像素，所述第二子像素列包括交错设置的多个所述第二颜色子像素和第三颜色子像素，并且在所述像素单元的列方向上，所述第一颜色子像素在所述第二子像素列上的正投影位于相邻的两个所述第二颜色子像素和所述第三颜色子像素之间。
参考图4，所述第一像素包括绿色子像素和红色子像素，所述第二像素包括蓝色子像素和绿色子像素，例如一个像素单元包括绿色子像素G1、红色子像素R1、蓝色子像素B1、绿色子像素G4。
示例性的，所述第一颜色子像素的中心点在所述第二子像素列上的正投影位于相邻的两个所述第二颜色子像素的中心点和所述第三颜色子像素的中心点的连线的中心。
本实施方式中，一个所述像素单元包括所述第一像素和所述第二像素，即一个所述像素单元包括四个子像素，所述第一透光孔41在所述衬底基板1上的正投影位于所述四个子像素的正投影合围形成的区域的内部，即所述四个子像素的正投影围设于对应的所述第一透光孔41在所述衬底基板1上的正投影的外围。
需要说明的是，对应一个所述像素单元的所述第一透光孔41的数量可根据实际需要设定，和一个所述像素单元中的多个子像素合围形成的非像素区的尺寸相关，本实施方式中，一个所述第一透光孔41对应一个所述像素单元，但并不以此为限。
一个所述像素单元中的多个子像素的排布方式可以有多种，示例性的实施方式中，沿第一方向(参考图4中的X方向)，所述第一像素的所述第一颜色子像素和所述第二像素的所述第一颜色子像素相对设置，沿与所述第一方向相垂直的第二方向(参考图4中的Y方向)，所述第二颜色子像素和所述第三颜色子像素相对设置，所述第一方向为与所述像素单元的行方向相平行的方向。
参考图4，示例性的实施方式中，所述第一颜色子像素为绿色子像素，所述第二颜色子像素为蓝色子像素，所述第三颜色子像素为红色子像素，但并不以此为限。
示例性的实施方式中，在平行于所述衬底基板1的方向上，所述第一颜色子像素或者第二颜色子像素或者所述第三颜色子像素的截面形状为椭圆形结构，所述椭圆形结构的长轴方向与所述像素单元的行方向或列方向相平行，在所述椭圆结构的长轴方向上，所述第一透光孔41包括靠近所述椭圆形结构设置的第一边缘，所述第一边缘向远离所述椭圆形结构的反向移动，使得所述第一透光孔41为异形结构。
在一实施方式中，多个所述像素单元构成一个像素组，即形成一个像素周期，在一个像素周期内，位于不同位置的所述第一子颜色子像素、所述第二子颜色子像素和所述第三颜色子像素中的一个子像素的形状不同，则该子像素与所述第二子颜色子像素和所述第三颜色子像素中的其他子像素之间的空间间距不同，相应的，对应于一个所述像素单元的所述第一透光孔41的形状、位置或尺寸等因素会有所不同。例如，所述第二颜色子像素为椭圆形结构，且所
述椭圆形结构的长轴方向与所述像素单元的行方向相平行，所述椭圆形结构的短轴方向与所述像素单元的列方向相平行，则在平行于所述衬底基板1的方向上，所述第二颜色子像素和与其相邻的子像素之间的间距不同，则在所述像素单元的行方向上，为了避让所述椭圆形结构，则所述第一透光孔41的相应的边缘会进行内缩设置，使得所述第一透光孔41在平行于所述衬底基板1的方向上的截面形状形成不规则的异形结构，例如所述第一透光孔41在平行于所述衬底基板1的方向上的截面形状为部分圆形内缩形成，即靠近所述椭圆形结构的部分内缩，相当于圆形少了一部分形成具有缺口的圆。
参考图4，示例性的实施方式中，在平行于所述衬底基板1的方向上，所述第一透光孔41的截面形状为向远离截面呈所述椭圆形结构的一侧凸出的凸多边形，所述第一边缘401内缩使得所述第一边缘401和与其相邻的边缘之间的角度小于或等于90度，而除了所述第一边缘401之外的其他边缘中的任意两个相邻的边缘之间的夹角为钝角.
示例性的，所述第一边缘401为与所述椭圆形结构的短轴方向相平行的直线结构，但并不以此为限。
示例性的实施方式中，在平行于所述衬底基板1的方向上，所述椭圆形结构包括与所述第一边缘401相对的第二边缘，且所述第一边缘401与相应的子像素的距离和所述第二边缘与相应的子像素的距离相同。这样在所述椭圆形结构的长轴方向上，所述第一透光孔41和与其相邻的子像素之间的距离相同。
示例性的实施方式中，所述衬底基板1上还包括金属走线，所述第一透光孔41在所述衬底基板1上的正投影位于所述金属走线在所述衬底基板1上的正投影之外。避免所述金属走线对光学指纹识别产生干扰。
示例性的实施方式中，所述显示模组还包括：
像素定义层2，设置于所述衬底基板1上，包括与多个所述子像素对应的多个像素开口22，和位于相邻像素开口22之间的非开口区，所述非开口区设置有与所述第一透光孔41一一对应设置的多个第二透光孔21。
沿着远离所述衬底基板1的方向，所述遮光层设置于所述像素定义层2的远离所述衬底基板1的一侧，所述像素定义层2的像素开口22内形成有发光层3，所述发光层3发出的光经指纹反射后入射至位于所述衬底基板1上的
光学指纹识别结构进行指纹识别，所述光学指纹传感器设置于所述衬底基板1远离所述遮光层的一侧，即指纹反射光需依次经过所述遮光层4、所述像素定义层2后被所述光学传感器7识别，所述光学传感器7在所述衬底基板1上的正投影位于所述非开口区在所述衬底基板1上的正投影内，在所述像素定义层2上设置所述第二透光孔21，与所述第一透光孔41相配合，进一步的提高了指纹反射光的透过率。
需要说明的是，在图1所示的显示模组中，所述像素定义层2上没有设置所述第二透光孔，所述像素定义层2整体材料透光材料制成，以避免阻挡指纹反射光入射到所述光学传感器，影响光学指示的识别，在所述遮光层上设置所述第一透光孔21的基础上，为了进一步的提高指纹反射光的透过率，在图2和图3所示的显示模组结构中，所述像素定义层2上增设了所述第二透光孔41。
示例性的实施方式中，所述第一透光孔41在所述衬底基板1上的正投影完全覆盖所述第二透光孔21在所述衬底基板1上的正投影。避免所述第一透光孔41与所述第二透光孔21部分重叠，导致部分指纹反射光无法通过所述第二透光孔21，即避免降低指纹发射光的透过率。
参考图6-图8，示例性的实施方式中，所述第一透光孔41在所述衬底基板1上的正投影的面积大于所述第二透光孔21在所述衬底基板1上的正投影的面积。有效的保证通过所述第一透光孔41最大限度的通过所述第二透光孔21，提高光线的透过率。
示例性的，所述遮光层4上设置有第一开口42，所述滤光部5形成于所述第一开口42上，所述像素定义层2上的像素开口22在所述衬底基板1上的正投影额面积小于所述第一开口42在所述衬底基板1上的正投影的面积。
参考图7，示例性的，所述显示模组还包括阳极9，所述阳极9在所述衬底基板1上的正投影的面积大于所述第一开口42在所述衬底基板1上的正投影的面积。
参考图8，示例性的，所述滤光部5在所述衬底基板上的正投影的面积大于所述第一开口42在所述衬底基板1上的正投影的面积。
示例性的实施方式中，所述像素定义层2的像素开口22内形成有发光层
3，在平行于所述衬底基板1的方向上，相邻两个所述第一透光孔41的间距D满足以下公式：其中，h为发光层3与所述遮光层之间的距离，n为所述显示模组的顶层的折射率。
所述显示模组的顶层材料(即所述盖板6)的折射率为n，发光材料层3从所述第一透光孔41溢出的光线在空气界面发生全反射时的最小角度为：
其中n1为所述盖板6的折射率n，n2为空气的折射率，取值1。
参考图1，为防止所述第一透光孔41漏光，需满足反射角θ≥β，即在平行于所述衬底基板1的方向上，相邻两个所述第一透光孔41的间距D满足以下公式：
其中，h为发光材料层3与所述遮光层之间的距离，n为所述显示模组的顶层的折射率。
本公开实施例还提供一种显示装置，包括上述的显示模组。
示例性的，所述滤光层远离所述衬底基板1的一侧设置有OC胶层(所述OC胶层10为透明树脂材料(Over Coat，OC)，对所述彩色滤光层进行封装和平坦)，所述OC胶层10和所述盖板6之间设置有OCA光学胶层20.
示例性的，参考图3，在柔性显示模组中，所述滤光层远离所述衬底基板1的一侧依次叠层设置有OC胶层10、光学胶层20、OC胶层10、光学胶层20和盖板6。
参考图5，示例性的，所述盖板6上包括指纹区100，指纹区100距离屏幕底部(距离所述盖板的最近的边缘)30mm，指纹区100的大小为9mm*9mm，但并不以此为限。
可以理解的是，以上实施方式仅仅是为了说明本公开的原理而采用的示例性实施方式，然而本公开并不局限于此。对于本领域内的普通技术人员而言，在不脱离本公开的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本公开的保护范围。
Claims (14)
- 一种显示模组，其中，包括：衬底基板，具有多个像素单元，每个所述像素单元包括多个不同颜色的子像素；光学指纹识别结构，包括设置于所述衬底基板上的多个光学传感器，用于将指纹反射光转换为电信号；滤光层，包括多个滤光单元，每个所述滤光单元包括与多个子像素相对应的多个不同颜色的滤光部；遮光层，包括多个位于相邻两个滤光部之间的遮光部，至少部分所述遮光部上设置有第一透光孔，以透过所述指纹反射光到所述光学传感器。
- 根据权利要求1所述的显示模组，其中，所述像素单元为包括像素设置区和非像素设置区，至少一个所述第一透光孔在所述衬底基板上的正投影位于一个所述像素单元的所述非像素设置区在所述衬底基板的正投影内。
- 根据权利要求2所述的显示模组，其中，一个所述像素单元包括第一像素和第二像素，所述第一像素包括第一颜色子像素和第二颜色子像素，所述第二像素包括所述第一颜色子像素和第三颜色子像素，所述第一像素中的所述第一颜色子像素和第二颜色子像素与所述第二像素中的所述第一颜色子像素和所述第三颜色子像素呈十字型分布；所述第一像素中的所述第一颜色子像素和第二颜色子像素与所述第二像素中的所述第一颜色子像素和所述第三子像素之间的非像素区域在所述衬底基板上的正投影为第一投影区，所述第一透光孔在所述衬底基板上的正投影位于所述第一投影区。
- 根据权利要求3所述的显示模组，其中，沿第一方向，所述第一像素的所述第一颜色子像素和所述第二像素的所述第一颜色子像素相对设置，沿与所述第一方向相垂直的第二方向，所述第二颜色子像素和所述第三颜色子像素相对设置，所述第一方向为与所述像素单元的行方向相平行的方向。
- 根据权利要求3所述的显示模组，其中，所述第一颜色子像素为绿色子像素，所述第二颜色子像素为蓝色子像素，所述第三颜色子像素为红色子像 素。
- 根据权利要求4所述的显示模组，其中，在平行于所述衬底基板的方向上，所述第一颜色子像素或者第二颜色子像素或者所述第三颜色子像素的截面形状为椭圆形结构，所述椭圆形结构的长轴方向与所述像素单元的行方向或列方向相平行，在所述椭圆结构的长轴方向上，所述第一透光孔包括靠近所述椭圆形结构设置的第一边缘，所述第一边缘向远离所述椭圆形结构的反向移动，使得所述第一透光孔为异形结构。
- 根据权利要求6所述的显示模组，其中，在平行于所述衬底基板的方向上，所述第一透光孔的截面形状为凸多边形，所述第一边缘为与所述椭圆形结构的短轴方向相平行的直线结构。
- 根据权利要求6所述的显示模组，其中，在平行于所述衬底基板的方向上，所述椭圆形结构包括与所述第一边缘相对的第二边缘，且所述第一边缘与相应的子像素的距离和所述第二边缘与相应的子像素的距离相同。
- 根据权利要求3所述的显示模组，其中，所述衬底基板上还包括金属走线，所述第一透光孔在所述衬底基板上的正投影位于所述金属走线在所述衬底基板上的正投影之外。
- 根据权利要求3所述的显示模组，其中，还包括：像素定义层，设置于所述衬底基板上，包括与多个所述子像素对应的多个像素开口，和位于相邻像素开口之间的非开口区，所述非开口区设置有与所述第一透光孔一一对应设置的多个第二透光孔。
- 根据权利要求10所述的显示模组，其中，所述第一透光孔在所述衬底基板上的正投影完全覆盖所述第二透光孔在所述衬底基板上的正投影。
- 根据权利要求11所述的显示模组，其中，所述第一透光孔在所述衬底基板上的正投影的面积大于所述第二透光孔在所述衬底基板上的正投影的面积。
- 根据权利要求10所述的显示模组，其中，所述像素定义层的像素开口内形成有发光层，在平行于所述衬底基板的方向上，相邻两个所述第一透光孔的间距D满足以下公式：其中，h为发光层与所述遮光 层之间的距离，n为所述显示模组的顶层的折射率。
- 一种显示装置，其中，包括权利要求1-13任一项所述的显示模组。
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| WO2022188459A1 (zh) * | 2021-03-08 | 2022-09-15 | 京东方科技集团股份有限公司 | 显示装置、显示面板及其制造方法 |
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