Display panel and display device

Abstract

A display panel and a display device include a display area, a photoelectric sensor area, a plurality of spacers, a plurality of first support columns, a plurality of second support columns, and a plurality of third support columns. The display area is located outside the photoelectric sensor area, and the photoelectric sensor area includes a light-transmitting area and a frame area surrounding the light-transmitting area, and the frame area includes a first area, a second area, and a third area. The first region surrounds the light-transmitting region, the second region is located on the side of the first region away from the light-transmitting region and surrounds the first region, the third region is located on the side of the second region away from the light-transmitting region and is located between the second region and the display region, thereby separating the second region from the display region, a plurality of spacers are arranged in an array and are located within the display region but not in the light-transmitting region, a plurality of first support pillars are located in the first region and are lined up around the light-transmitting region and spaced apart from each other, a plurality of second support pillars are located in the second region and are lined up around the second region and spaced apart from each other, and a plurality of third support pillars are located in the third region and arranged in an array.

Description

[Technical field]

[0001] [CROSS REFERENCE TO RELATED APPLICATIONS] This application claims priority to a Chinese patent application having application number 202010243978.6, filed on March 31, 2020, the entire contents of which are hereby incorporated by reference into this application.

[0002] At least one embodiment of the present disclosure relates to a display panel and a display device. [Background technology]

[0003] Generally, a display device (e.g., a mobile phone, a tablet PC, etc.) has a photoelectric sensor device, such as an imaging device, a fingerprint recognition device, and the imaging device is generally provided on one side outside the display area of ​​the display screen. However, since a certain position is required for mounting the imaging device, it is disadvantageous to full-screen and narrow-frame design of the display screen. For example, the imaging device and the display area of ​​the display screen may be combined, and a position is reserved for the imaging device (e.g., a front-mounted imaging device) in the display area to obtain maximization of the display area of ​​the display screen. In order to ensure the signal strength received by the device, the position reserved for the imaging device needs to have high transmittance. In order to ensure the shooting effect of the imaging device, the position reserved for the imaging device needs to have relatively high uniformity. Summary of the Invention [Means for solving the problem]

[0004] At least one embodiment of the present disclosure provides a display panel, the display panel including a display area, a photoelectric sensor area, a plurality of spacers, a plurality of first support pillars, a plurality of second support pillars, and a plurality of third support pillars, the display area being located outside the photoelectric sensor area, the display area including a plurality of pixels arranged in an array, each pixel among the plurality of pixels including a plurality of color sub-pixels, the photoelectric sensor area including a light-transmitting area and a frame area surrounding the light-transmitting area, the frame area including a first area, a second area, and a third area. The first region surrounds the light-transmitting region, the second region is located on a side of the first region away from the light-transmitting region and surrounds the first region, the third region is located on a side of the second region away from the light-transmitting region and is located between the second region and the display region, thereby separating the second region from the display region, a plurality of spacers are arranged in an array, the plurality of spacers are located in the display region but not in the light-transmitting region, a plurality of first support pillars are located in the first region and are lined up around the light-transmitting region and spaced apart from one another, a plurality of second support pillars are located in the second region and are lined up around the second region and spaced apart from one another, and a plurality of third support pillars are located in the third region and arranged in an array.

[0005] For example, a display panel according to an embodiment of the present disclosure further includes a first substrate, a second substrate, a black matrix, and a protective layer, the second substrate facing the first substrate, the black matrix located on a side of the second substrate close to the first substrate, covering the frame region and defining the color sub-pixels in the display region, the spacers, the first support pillars, the second support pillars, and the third support pillars being orthogonally projected on the first substrate within the black matrix orthogonally projected on the first substrate, and a protective layer located on the second substrate and on a side of the black matrix close to the first substrate, covering the frame region and the display region, with the spacers, the first support pillars, the second support pillars, and the third support pillars being located between the first substrate and the protective layer to maintain a distance between the first substrate and the second substrate.

[0006] For example, a display panel according to one embodiment of the present disclosure further includes a first spacer layer located in the second region and between the black matrix and the protective layer, and the orthogonal projections of the plurality of second support pillars on the first substrate are located within the orthogonal projections of the first spacer layer on the first substrate.

[0007] For example, in a display panel according to one embodiment of the present disclosure, the planar arrangement pattern of the first spacer layer is a closed ring surrounding the first region.

[0008] For example, in a display panel according to one embodiment of the present disclosure, in the first region, the protective layer is in direct contact with the black matrix, the protective layer has a staircase structure in the first region, the staircase structure includes a first portion away from the second region and a second portion close to the second region, and in a direction perpendicular to the first substrate, a height of the first portion is smaller than a height of the second portion, and a height of the first support pillar is greater than a height of the second support pillar.

[0009] For example, in a display panel according to one embodiment of the present disclosure, the planar arrangement pattern of the plurality of first support pillars includes at least one ring shape.

[0010] For example, in a display panel according to one embodiment of the present disclosure, the planar arrangement pattern of the plurality of first support pillars includes a plurality of concentric rings, and along the radial direction of the concentric rings, the first support pillars in the plurality of concentric rings are aligned, or the first support pillars in adjacent concentric rings among the plurality of concentric rings intersect.

[0011] For example, in a display panel according to one embodiment of the present disclosure, a ratio of a total area of ​​the orthogonal projection of the plurality of first support pillars on the first substrate to a total area of ​​the orthogonal projection of the plurality of second support pillars on the first substrate is 5 to 10.

[0012] For example, in a display panel according to one embodiment of the present disclosure, the distance between the centers of two adjacent first support pillars among the multiple first support pillars located in the same concentric ring is equal to the length or width of one pixel in the display area.

[0013] For example, a display panel according to one embodiment of the present disclosure further includes a second spacer layer located in the third region and between the black matrix and the protective layer, and the orthogonal projections of the plurality of third support pillars on the first substrate are located within the orthogonal projections of the second spacer layer on the first substrate.

[0014] For example, in a display panel according to one embodiment of the present disclosure, the first spacer layer is either integrally molded with the second spacer layer or separated from each other by the protective layer.

[0015] For example, a display panel according to one embodiment of the present disclosure includes a color film layer located on a side of the second substrate adjacent to the first substrate and including a first portion, a second portion, and a third portion, the first portion of the color film layer being located in a plurality of color sub-pixels of the display area and a orthogonal projection of the first portion of the color film layer on the first substrate does not overlap with a orthogonal projection of the black matrix on the first substrate, the second portion of the color film layer being located in the second region and configured as the first spacer layer, and a orthogonal projection of the second portion of the color film layer on the first substrate overlaps with a orthogonal projection of the black matrix on the first substrate, and the third portion of the color film layer being located in the third region and configured as the second spacer layer.

[0016] For example, in a display panel according to one embodiment of the present disclosure, the multiple spacers located in the display area include multiple main spacers and multiple sub-spacers, the height of the main spacers in a direction perpendicular to the first substrate is greater than the height of the sub-spacers in a direction perpendicular to the first substrate, the shape and dimensions of each of the multiple second support pillars and the shape and dimensions of each of the multiple third support pillars are the same as the shape and dimensions of each of the multiple sub-spacers, and the shape and dimensions of each of the multiple first support pillars are the same as the shape and dimensions of each of the multiple main spacers.

[0017] For example, a display panel according to an embodiment of the present disclosure further includes a buffer layer and a driving circuit layer, the buffer layer being located on a side of the first substrate close to the second substrate and in direct contact with the first substrate, the driving circuit layer being located on a side of the buffer layer away from the first substrate and located in the display area and the frame area, with the spacers, the first support pillars, the second support pillars, and the third support pillars all being located between the driving circuit layer and the protective layer, no driving circuit layer being provided in the light-transmitting area, and the edge of the driving circuit layer close to the light-transmitting area being located in the first area or in the boundary between the light-transmitting area and the first area.

[0018] For example, in a display panel according to one embodiment of the present disclosure, in the light-transmitting region, a first liquid crystal layer is provided between the buffer layer and the second substrate, and the first liquid crystal layer is in direct contact with the buffer layer.

[0019] For example, in a display panel according to one embodiment of the present disclosure, in the frame region and the display region, a second liquid crystal layer is provided between the protective layer and the driving circuit layer, and the liquid crystal in the first liquid crystal layer and the liquid crystal in the second liquid crystal layer are communicated via the spacing between the multiple first support pillars, the spacing between the multiple second support pillars, and the spacing between the multiple third support pillars.

[0020] For example, in a display panel according to one embodiment of the present disclosure, the protective layer further covers the light-transmitting area, and in the light-transmitting area, the protective layer is in direct contact with the second substrate, and the first liquid crystal layer is located between the buffer layer and the protective layer and in direct contact with the protective layer.

[0021] For example, in a display panel according to one embodiment of the present disclosure, no liquid crystal layer is provided in the light-transmitting region, and air is filled between the second substrate and the buffer layer in the light-transmitting region, and the display panel includes a first sealant, which is located between the second substrate and the buffer layer, surrounds the light-transmitting region, and is in direct contact with the buffer layer and the protective layer.

[0022] For example, a display panel according to one embodiment of the present disclosure includes a plurality of the light-transmitting regions, and two adjacent light-transmitting regions are a first light-transmitting region and a second light-transmitting region, respectively, and the display panel includes an intermediate region, a third spacer layer, a plurality of fourth support pillars, and a plurality of fifth support pillars, the intermediate region being located between a second region surrounding the first light-transmitting region and a second region surrounding the second light-transmitting region, the third spacer layer being the same layer as the first spacer layer and connected thereto, and including a first portion and a second portion, where the first portion and the second portion face each other, the intermediate region being located between the first portion and the second portion, the plurality of fourth support pillars being aligned along the first portion and spaced apart from each other, where the orthogonal projection of the plurality of fourth support pillars on the first substrate is a projection of the first portion of the first substrate on the first substrate, and the projection of the fourth support pillars on the first substrate is a projection of the fifth support pillars on the first substrate ... a plurality of fifth support pillars are aligned along the second portion and spaced apart from one another, wherein the orthogonal projections of the plurality of fifth support pillars on the first substrate are located within the orthogonal projections of the second portion on the first substrate, and in a direction perpendicular to the first substrate, the plurality of fourth support pillars and the plurality of fifth support pillars are provided in the same layer as the plurality of second support pillars, and the shape and dimensions of each of the plurality of fourth support pillars and the shape and dimensions of each of the plurality of fifth support pillars are the same as the shape and dimensions of each of the plurality of second support pillars.

[0023] For example, a display panel according to an embodiment of the present disclosure further includes a plurality of sixth support pillars and a plurality of seventh support pillars, the sixth support pillars being located on a side of the first portion adjacent to the intermediate region, aligned along the first portion and spaced apart from one another, the seventh support pillars being located on a side of the second portion adjacent to the intermediate region, aligned along the second portion and spaced apart from one another, the sixth support pillars and the seventh support pillars being provided in the same layer as the first support pillars in a direction perpendicular to the first substrate, and the shape and dimensions of each of the sixth support pillars and the shape and dimensions of each of the seventh support pillars being the same as those of each of the first support pillars.

[0024] For example, in a display panel according to one embodiment of the present disclosure, the planar shapes of the first portion and the second portion are both straight line segments and are parallel to each other.

[0025] For example, in a display panel according to one embodiment of the present disclosure, the black matrix covers the middle region, and the structure in the middle region is the same as the structure in the third region.

[0026] For example, in a display panel according to one embodiment of the present disclosure, the intermediate region is an intermediate display region, the intermediate display region includes a plurality of intermediate pixels arranged in an array, each of the plurality of intermediate pixels includes a plurality of color intermediate sub-pixels, the black matrix defines the plurality of color intermediate sub-pixels in the intermediate display region, and the light transmittance of the intermediate display region is less than or equal to the light transmittance of the display region.

[0027] For example, in a display panel according to one embodiment of the present disclosure, the protective layer further covers the intermediate display area, and the thickness of the portion of the protective layer covering the intermediate display area in a direction perpendicular to the first substrate is greater than the thickness of the portion of the protective layer covering the display area in a direction perpendicular to the first substrate.

[0028] For example, a display panel according to one embodiment of the present disclosure further includes a plurality of intermediate spacers, which are located in the intermediate display area and arranged in an array, and the structure of the plurality of intermediate spacers is the same as the structure of the plurality of spacers in the display area.

[0029] For example, a display panel according to an embodiment of the present disclosure further includes a plurality of intermediate spacers located in the intermediate display area and arranged in an array, and an arrangement density of the plurality of intermediate spacers in the intermediate display area is smaller than an arrangement density of the plurality of spacers in the display area.

[0030] For example, in a display panel according to one embodiment of the present disclosure, the photoelectric sensor region includes at least three light-transmitting regions and an auxiliary functional region, the at least three light-transmitting regions and the auxiliary functional region are arranged in a 2×2 matrix, the spacing between a first row and a second row of the 2×2 matrix and the spacing between a first column and a second column of the 2×2 matrix form a cross-shaped region, and the structure within the cross-shaped region is the same as the structure within the intermediate region.

[0031] For example, in a display panel according to one embodiment of the present disclosure, the display panel is a liquid crystal display panel, the first substrate is an array substrate, and the second substrate is a color filter substrate; or the display panel is an organic light emitting diode (OLED) display panel, the first substrate is an array substrate, and the second substrate is a package cover plate.

[0032] An embodiment of the present disclosure provides a display device, the display device including any one of the display panels according to the embodiments of the present disclosure.

[0033] For example, in a display device according to an embodiment of the present disclosure, a side of the second substrate away from the first substrate is a display side, and the display device further includes a photoelectric sensor device located in the light-transmitting region and on a side of the first substrate away from the second substrate, configured to receive light from the display side.

[0034] In order to more clearly describe the technical solutions of the embodiments of the present invention, the following briefly introduces the accompanying drawings of the embodiments. It is obvious that the accompanying drawings in the following description only relate to some embodiments of the present invention and are not limitations on the present invention. [Brief description of the drawings]

[0035] [Figure 1A] 1 is a schematic overall plan view of a display panel according to one embodiment of the present disclosure; [Figure 1B] FIG. 2 is a schematic overall plan view of another display panel according to one embodiment of the present disclosure. [Figure 1C] FIG. 13 is a schematic overall plan view of yet another display panel according to one embodiment of the present disclosure. [Figure 2A] 1B is an enlarged schematic diagram of a photoelectric sensor area and its surrounding area in FIG. 1A. [Figure 2B] 1B is another enlarged schematic diagram of the photoelectric sensor area and its surrounding area in FIG. 1A. [Figure 3A] FIG. 2B is a schematic cross-sectional view taken along line AA' in FIG. 2A. [Figure 3B] 1 is a schematic cross-sectional view of a display panel according to an embodiment of the present disclosure, taken along a local first direction including a driving circuit layer. [Figure 3C] 3C is a schematic cross-sectional view of the drive circuit layer shown in FIG. 3B along a local second direction. FIG. [Figure 3D] FIG. 2B is another schematic cross-sectional view taken along line AA' in FIG. 2A. [Figure 4] FIG. 2B is yet another schematic cross-sectional view taken along line AA' in FIG. 2A. [Diagram 5] FIG. 2B is yet another schematic cross-sectional view taken along line AA' in FIG. 2A. [Figure 6A] FIG. 2 is a schematic overall plan view of another display panel according to one embodiment of the present disclosure. [Figure 6B] FIG. 13 is a schematic overall plan view of yet another display panel according to one embodiment of the present disclosure. [Figure 6C]FIG. 13 is a general schematic plan view of yet another display panel according to one embodiment of the present disclosure. [Figure 6D] FIG. 13 is a general schematic plan view of yet another display panel according to one embodiment of the present disclosure. [Figure 7A] 6B is an enlarged schematic diagram of a photoelectric sensor area and its surrounding area in FIG. 6A. [Figure 7B] FIG. 7B is a schematic cross-sectional view taken along line BB' in FIG. 7A. [Figure 8A] 6B is another enlarged schematic diagram of the photoelectric sensor area and its surrounding area in FIG. 6A. [Figure 8B] FIG. 8B is a schematic cross-sectional view taken along line CC' in FIG. 8A. [Figure 9] 1 is a schematic diagram of a method for fabricating a display panel according to one embodiment of the present disclosure. [Figure 10] 1 is a schematic diagram of a display device according to one embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0036] In order to more clearly explain the objectives, technical solutions and advantages of the embodiments of the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is clear that the described embodiments are only some of the embodiments of the present invention, and not all of the embodiments. Based on the described embodiments of the present invention, any other embodiments obtained by those skilled in the art without creative labor are all included in the protection scope of the present invention.

[0037] Unless otherwise defined, technical or scientific terms used herein have the ordinary meanings that are understood by those skilled in the art. The terms "first", "second" and similar terms used in the present specification and claims do not indicate any order, quantity or importance, but are merely used to distinguish different components. The terms "comprise" and similar terms such as "include" and "included" mean that the element or thing appearing before the term includes the element or thing listed after the term and their equivalents, but do not exclude other elements or things. The terms "inside", "outside", "up", "down" and the like are merely used to indicate relative positional relationships, and when the absolute position of the described object is changed, the relative positional relationships may change accordingly.

[0038] The accompanying drawings in this disclosure are not drawn strictly to actual scale, the number of various supports is not limited to the number shown in the drawings, and the specific dimensions and number of each structure may be determined according to actual needs. The accompanying drawings described in this disclosure are only structural schematic diagrams.

[0039] In a display panel, such as a liquid crystal display panel, having a photoelectric sensor device, such as an imaging device or a fingerprint recognition device, a spacer is generally provided between the array substrate and the color filter substrate in the region where the imaging device is provided, so as to maintain the cell gap and structural stability of the region, thereby improving the uniformity of the region in the use process, which is advantageous to ensure a relatively high shooting effect of the imaging device. In this way, the spacer prevents light from passing through the region and reaching the photoelectric sensor device, so that the light transmittance of the region where the imaging device is provided is relatively low. Generally, a driving circuit, such as a pixel circuit including a signal line, a film transistor, a storage capacitor, etc., is further provided in the region where the imaging device is provided.

[0040] At least one embodiment of the present disclosure provides a display panel, the display panel including a display area, a photoelectric sensor area, a plurality of spacers, a plurality of first support pillars, a plurality of second support pillars, and a plurality of third support pillars, the display area being located outside the photoelectric sensor area, the display area including a plurality of pixels arranged in an array, each pixel among the plurality of pixels including a plurality of color sub-pixels, the photoelectric sensor area including a light-transmitting area and a frame area surrounding the light-transmitting area, the frame area including a first area, a second area, and a third area. The first region surrounds the light-transmitting region, the second region is located on a side of the first region away from the light-transmitting region and surrounds the first region, the third region is located on a side of the second region away from the light-transmitting region and is located between the second region and the display region, thereby separating the second region from the display region, a plurality of spacers are arranged in an array, the plurality of spacers are located in the display region but not in the light-transmitting region, a plurality of first support pillars are located in the first region and are lined up around the light-transmitting region and spaced apart from one another, a plurality of second support pillars are located in the second region and are lined up around the second region and spaced apart from one another, and a plurality of third support pillars are located in the third region and arranged in an array.

[0041] It should be noted that in the present disclosure, the numbers of the first support pillars 41, the second support pillars 42 and the third support pillars 43 in Figures 3A, 3D, 4 and 5 do not completely correspond to the numbers in Figures 2A and 2B, and these accompanying drawings of the present disclosure are merely schematic diagrams to represent the structural relationship between each described structure. In Figures 2A and 2B, due to dimensional limitations, the main spacer 401 and the sub spacer 402 do not appear to be completely located within the black matrix when projected onto the black matrix. In fact, in the embodiment of the present disclosure, the main spacer 401 and the sub spacer 402 do not appear to be completely located within the black matrix when projected onto the black matrix. Based on the claims and the written description of the specification, the accompanying drawings are merely planar arrangement diagrams representing each structure.

[0042] 1A is an overall plan view schematic diagram of a display panel according to one embodiment of the present disclosure, FIG. 2A is an enlarged schematic diagram of a photoelectric sensor region and its surrounding region in FIG. 1A, and FIG. 3A is a cross-sectional schematic diagram along line AA in FIG. 2A. As shown in FIG. 1A, the display panel includes a display region 3 and a photoelectric sensor region 20. The display region 3 is located outside the photoelectric sensor region 20, for example, the display region 3 surrounds at least a part of the photoelectric sensor region 20. For example, in the embodiment shown in FIG. 1A, the display region 3 surrounds the entire photoelectric sensor region 20, and in other embodiments, the display region 3 may surround a part of the photoelectric sensor region 20. For example, as shown in Fig. 1B, the photoelectric sensor area 20 is located at the apex angle of the display panel, and the display area 3 also surrounds a part of the photoelectric sensor area 20, and as shown in Fig. 1C, the photoelectric sensor area 20 is located at the periphery of the display panel and at the middle position of one side of the outer contour of the display panel, one end of the photoelectric sensor area 20 adjacent to the side is connected to a non-display area near the side, and the display area 3 surrounds the other part of the photoelectric sensor area 20 other than the one end in contact with the non-display area. The situation shown in Figs. 1A-1C is merely illustrative, and the specific positional relationship between the display area 3 and the photoelectric sensor area 20 is not limited to the situation shown in Figs. 1A-1C, and it is sufficient that the display area 3 surrounds at least a part of the photoelectric sensor area 20.

[0043] 2A and 3A, the display panel includes a plurality of spacers 40, a plurality of first support columns 41, a plurality of second support columns 42, and a plurality of third support columns 43. The display area 3 is located outside the photoelectric sensor area 20, and the display area 3 includes a plurality of pixels 8 arranged in an array, and each pixel in the plurality of pixels 8 includes a plurality of color sub-pixels, for example, a first sub-pixel 81, a second sub-pixel 82, and a third sub-pixel 83, and for example, the first sub-pixel 81, the second sub-pixel 82, and the third sub-pixel 83 transmit red light, blue light, and green light, respectively. The photoelectric sensor area 20 includes a light-transmitting area 1 and a frame area 2 surrounding the light-transmitting area 1, and the frame area includes a first area 21, a second area 22, and a third area 23. The first region 21 surrounds the light-transmitting region 1, the second region 22 is located on the side of the first region 21 away from the light-transmitting region 1, i.e., the second region 22 is located outside the light-transmitting region 1 and surrounds the first region 21, the third region 23 is located on the side of the second region 22 away from the light-transmitting region 1 and is located between the second region 22 and the display region 3, thereby separating the second region 22 from the display region 3, the multiple spacers 40 are arranged in an array, the multiple spacers 40 are located in the display region 3 but not in the light-transmitting region 1, the multiple first support columns 41 are located in the first region 21 and are lined up around the light-transmitting region 1 and are spaced apart from one another, the multiple second support columns 42 are located in the second region 22 and are lined up around the second region 22 and are spaced apart from one another, and the multiple third support columns 43 are located in the third region 23 and arranged in an array. In this display panel, the plurality of spacers 40 are located within the display region 3 but not within the light-transmitting region 1, so that the light transmittance of the light-transmitting region 1 is obviously improved. Although there is no support of the spacers within the light-transmitting region 1, the plurality of first support pillars 41 and second support pillars 42 located in the frame region 2 and spaced apart from each other maintain the stability of the periphery of the light-transmitting region 1, thereby maintaining the spatial stability of the light-transmitting region 1 and improving the regional stability of the light-transmitting region 1, so that the light transmittance of the light-transmitting region 1 and the uniformity and stability of the color of the light transmitted from the light-transmitting region 1 can be improved.In addition, when the liquid crystal is provided in the first region 21, the second region 22 and the third region 23, in this solution, the first support pillars 41 are spaced apart from each other and the second support pillars 42 are spaced apart from each other, so that the liquid crystal in the light-transmitting region 1 can flow through the gaps between the first support pillars 41 and the gaps between the second support pillars 42, thereby ensuring the fluidity between the liquid crystal in the light-transmitting region 1 and the liquid crystal in other regions, such as the first region 21 and the second region 22. When the environmental temperature changes, the volume of the liquid crystal changes, and the heights of the first support pillars 41 and the second support pillars 42 also change synchronously, so that the volume of the liquid crystal matches the cell gap, and since no support pillars are provided in the light-transmitting region 1, the fluidity of the liquid crystal can be maintained, and display abnormalities caused by the volume of the liquid crystal in the light-transmitting region 1 not matching the cell gap can be avoided. In addition, in the process of manufacturing the display panel, if the display panel is a liquid crystal display panel, in the step of infusing liquid crystal, the area of ​​the light-transmitting region 1 is very small compared to the liquid crystal droplets into which the liquid crystal is dropped, and it is difficult to drop the liquid crystal directly and accurately into the light-transmitting region 1, so the liquid crystal may be dropped into a relatively large region such as the display region 3, and the liquid crystal will flow into the light-transmitting region 1 through the second region 22 and the first region 21 in sequence, and through the gaps between the first support columns 41 and the gaps between the second support columns 42, thereby realizing the liquid crystal filling in the light-transmitting region 1. If the first support columns 41 or the second support columns 42 are closed annular surrounding the entire light-transmitting region 1, the above technical effect cannot be achieved.In addition, in the third region 23, a plurality of third support pillars 43 are also spaced apart from each other, and the third region 23 is located outside the first region 21 and the second region 22 (i.e., the side away from the light-transmitting region) and surrounds at least a part of the light-transmitting region 1, so that the third region 23 is closer to the display region 3, for example adjacent to the display region 3, and a plurality of spacers arranged in an array are provided in the display region 3. By providing a plurality of third support pillars 43 arranged in an array in the third region 23, the structure of the third region 23 adjacent to the display region 3 tends to match the structure of the display region 3, and the cell gap also tends to match, so that the third region 23 can be a transition region from the frame region 2 to the display region 3, so that the structures of the peripheral region of the display region 3 adjacent to the frame region 2 and the middle region of the display region 3 are uniform and consistent, thereby obtaining a uniform display effect within the entire range of the display region 3. For example, the third region 23 is a dummy region, which maintains uniformity in the peripheral portion of the boundary between the display region 3 and the photoelectric sensor region 20.

[0044] For example, the arrangement density and array format of the plurality of third support columns 43 arranged in an array in the third region 23 are the same as the arrangement density and array format of the plurality of spacers arranged in an array in the display region 3, so that the structure of the third region 23 adjacent to the display region 3 tends to match that of the display region 3, and the structures of the peripheral region of the display region 3 adjacent to the frame region 2 and the middle region of the display region 3 are uniform and matched, which is more advantageous for obtaining a uniform display effect within the entire range of the display region 3. Of course, in other embodiments, the arrangement density and array format of the plurality of third support columns 43 arranged in an array in the third region 23 may be different from the arrangement density and array format of the plurality of spacers arranged in an array in the display region 3.

[0045] For example, the side of the second substrate 102 away from the first substrate 101 is the display side. As shown in FIG. 3A, for example, a photoelectric sensor device 15 may be provided on the side of the first substrate 101 away from the second substrate 102, and the photoelectric sensor device 15 is configured to receive light from the display side, i.e., the light from the display side reaches the photoelectric sensor device 15 through the light-transmitting region, so that the structure in the light-transmitting region 1 affects the size of the light transmittance and the uniformity of the light transmission color, thereby affecting the amount of light received by the photoelectric sensor device 15, the uniformity of the brightness of the light, and the uniformity of the color.

[0046] For example, the arrangement density of the first support pillars 41 is greater than the arrangement density of the second support pillars 42, i.e., the distance between two adjacent first support pillars 41 is smaller than the distance between two adjacent second support pillars 42, providing more stable support to the first region 21 which is closer to the light-transmitting region 1.

[0047] For example, the arrangement density of the sub-spacers 402 in the display region 3 is 287 / 288, i.e., 287 sub-spacers 402 are provided corresponding to each of the 288 sub-pixels in the display region 3, and the arrangement density of the main spacers 401 is 1 / 288, i.e., one main spacer 401 is provided corresponding to each of the 288 sub-pixels in the display region 3. For example, the arrangement density of the third support columns 43 in the third region 23 is the same as the arrangement density of the sub-spacers 402, so that the arrangement of the support columns and the cell gap in the third region 23 match the arrangement of the spacers and the cell gap in the display region 3, respectively.

[0048] 3A, the display panel further includes a first substrate 101, a second substrate 102, a black matrix 5, and a protective layer 6. The second substrate 102 faces the first substrate 101, and the black matrix 5 is located on a side of the second substrate 102 close to the first substrate 101, and covers the frame region 2, so that the frame region 2 is non-transparent, and the black matrix 5 defines the color sub-pixels in the display region 1. The black matrix 5 is located within the orthogonal projection of the first substrate 101, and thus the spacers 40 do not affect the aperture ratio in the display region 3. The protective layer 6 is located on the second substrate 102 and on the side of the black matrix 5 adjacent to the first substrate 101, and covers the frame region 2 and the display region 3, thereby protecting the sub-pixels and the black matrix on the second substrate 102 in the frame region 2 and the display region 3. The spacers 40, the first support columns 41, the second support columns 42, and the third support columns 43 are located between the first substrate 101 and the protective layer 6, thereby maintaining the cell gap between the first substrate 101 and the second substrate 102.

[0049] For example, the display panel further includes a first spacer layer 71, which is located in the second region 22 and between the black matrix 5 and the protective layer 6, and the first spacer layer 71 is located within the orthogonal projection of the plurality of second support pillars 42 onto the first substrate 101. In order to simplify the manufacturing process of the display panel, the second support pillars 42, the third support pillars 43, and the sub-spacers 402 of the display region 3 may be formed by performing a single patterning process on the same film layer using the same mask, so that the height of the second support pillars 42 in the direction perpendicular to the first substrate 101, the height of the third support pillars 43 in the direction perpendicular to the first substrate 101, and the height of the sub-spacers 402 of the display region 3 are the same. In this case, the height h2 of the second support pillar 42 in the direction perpendicular to the first substrate 101 is limited, and h2 is overlapped with the thickness of the first spacer layer 71 in the direction perpendicular to the first substrate 101, so that each second support pillar 42 and the first spacer layer 71 together maintain the required distance between the first substrate 101 and the second substrate 102 in the second region 22. When the second support pillar 42 receives a force and is deformed to change its height, the first spacer layer 71 can help reduce the effect of such change on maintaining the required distance between the first substrate 101 and the second substrate 102 in the second region 22. Of course, if the above situation of simplifying the manufacturing process is not taken into consideration, the second support pillar 42 can have any height in the direction perpendicular to the first substrate 101 as necessary.

[0050] For example, as shown in FIG. 2A , the planar arrangement pattern of the first spacer layer 71 is a closed ring surrounding the first region 21, thereby maintaining the stability of the periphery of the light-transmitting region 1 at every position surrounding the light-transmitting region 1, thereby improving the light transmittance of the light-transmitting region 1 and the uniformity and stability of the color of the light transmitted from the light-transmitting region 1.

[0051] 3A, in the first region 21, the protective layer 6 is in direct contact with the black matrix 6, i.e., the first spacer layer 71 or other structure having a height similar to that of the first spacer layer 71 is not provided in the first region 21, and there is no other layer or structure between the protective layer 6 and the black matrix 6 in the direction perpendicular to the second substrate 102. As a result, the protective layer 6 has a staircase structure in the first region 21, and the staircase structure includes a first portion 61 away from the second region 22 and a second portion 62 close to the second region 22, and in the direction perpendicular to the first substrate 101, the height H1 of the first portion 61 is smaller than the height H2 of the second portion 62, and the height of the first support column 41 is larger than the height of the second support column 42. Although the first spacer layer 71 is provided in the second region 22 which is relatively far from the light-transmitting region 1, the first spacer layer 71 is not provided in the first region 21, so that the staircase structure is not located in the light-transmitting region 1, thereby avoiding an influence on the light transmission uniformity of the light-transmitting region 1. Note that the height of the first portion 61 is the distance from the surface of the first portion 61 away from the second substrate 102 to the surface of the second substrate 102 facing the first substrate 101, and the height of the second portion 62 is the distance from the surface of the second portion 62 away from the second substrate 102 to the surface of the second substrate 102 facing the first substrate 101.

[0052] For example, the planar arrangement pattern of the plurality of first support columns 41 includes at least one ring as a whole. For example, as shown in FIG. 2A, the planar arrangement pattern of the plurality of first support columns 41 includes a plurality of concentric rings as a whole, for example, two concentric rings, and the number of the first support columns 41 can be determined by comparing the size of the first support columns 41 with the area of ​​the frame region 2, thereby designing according to the display panels of different sizes and achieving a relatively high supporting effect, which will be specifically introduced below. For example, the shape of each concentric ring is consistent with the planar shape of the light-transmitting region 1 surrounded by the concentric ring, so that the plurality of first support columns 41 can better maintain the stability of the periphery of the light-transmitting region 1. For example, in this embodiment, the planar shape of the light-transmitting region 1 and the shape of each concentric ring are both circular, and in other embodiments, when the planar shape of the light-transmitting region 1 is rectangular, the shape of each concentric ring is also rectangular, and when the planar shape of the light-transmitting region 1 is elliptical, the shape of each concentric ring is also elliptical. The above-listed situations are merely illustrative, and the embodiments of the present disclosure do not limit the planar shape of the light-transmitting region 1 and the shapes of each of the concentric rings.

[0053] For example, the first support pillars 41 in the multiple concentric rings are aligned along the radial direction of the multiple concentric rings, and as shown in FIG. 2A, the first support pillar 411 located in the first concentric ring close to the light-transmitting region 1 is aligned along the radial direction with the first support pillar 412 located in the second concentric ring away from the light-transmitting region 1; or, the first support pillars 41 in adjacent concentric rings among the multiple concentric rings are intertwined along the radial direction of the multiple concentric rings, and as shown in FIG. 2B, the first support pillar 411 located in the first concentric ring close to the light-transmitting region 1 is aligned along the radial direction with the first support pillar 412 located in the second concentric ring away from the light-transmitting region 1. The first support pillars 411 located in the first concentric ring are arranged intersecting with the first support pillars 412 located in the second concentric ring adjacent to the first concentric ring away from the light-transmitting region 1, i.e., are not aligned along the radial direction, thereby achieving a higher supporting effect, and the supporting actions of the first support pillars 41 on the adjacent concentric rings are complementary in position, thereby achieving a uniform and consistent supporting effect at each position surrounding the light-transmitting region 1, and better maintaining the uniformity and stability of the light-transmitting region 1. All other unmentioned features of the embodiment shown in FIG. 2B are the same as those in FIG. 2A, and please refer to the description of the embodiment shown in FIG. 2A.

[0054] For example, the ratio of the total area of ​​the orthogonal projection of the plurality of first support columns 41 onto the first substrate 101 to the total area of ​​the orthogonal projection of the plurality of second support columns 42 onto the first substrate 101 is 5-10, and through testing, it is found that a relatively high support effect can be achieved in this way. For example, the ratio of the total area of ​​the orthogonal projection of the plurality of first support columns 41 onto the first substrate 101 to the area of ​​the frame region 2 is 0.4%-0.6%, and the ratio of the total area of ​​the orthogonal projection of the plurality of second support columns 42 onto the first substrate 101 to the area of ​​the frame region 2 is 0.06%-0.08%, and through testing and calculation, it is found that a relatively high support effect and a uniform and harmonious structural design can be achieved in this way. For example, when the planar shape of the frame region 2 is a ring, the area S of the frame region is calculated by the formula for the ring area, S=π×(a 2 -b 2 ) / 4, where a is the diameter of the circle on which the outer ring of the frame area is located, and b is the diameter of the circle on which the inner ring of the frame area is located. If the planar shape of the frame area 2 is other shapes, calculations can be made according to the actual situation.

[0055] For example, among the plurality of first support pillars 41 located in the same concentric ring, the distance between the centers of two adjacent first support pillars 41 is equal to the length or width of one pixel in the display area 3. The pixel is one pixel unit including a plurality of sub-pixels (for example, including three sub-pixels of RGB). After the area of ​​the frame area 2 and the area of ​​one first support pillar 41 and one second support pillar 42 are determined, the number of the first support pillars 41 and the second support pillars 42 is determined based on the above ratio, and after calculation, when the distance between the centers of two adjacent first support pillars 41 among the plurality of adjacent first support pillars 41 located in the same concentric ring is equal to the length or width of one pixel in the display area 3, the density of the first support pillars 41 and the second support pillars 42 is appropriate, the manufacturing is easy, and the support stability effect is relatively high. For example, the sum of the length of one second support pillar 42 and the interval between the adjacent second support pillars 42 is 100 μm to 200 μm.

[0056] For example, as shown in FIG. 3A, the display panel further includes a second spacer layer 72. The second spacer layer 72 is located in the third region 23 and between the black matrix 5 and the protective layer 6, and the second spacer layer 72 is located within the orthogonal projection of the multiple third support pillars 43 onto the first substrate 101. In order to simplify the manufacturing process of the display panel, the second support pillars 42, the third support pillars 43, and the sub-spacers 402 of the display area 3 may be formed by performing a single patterning process on the same film layer using the same mask, so that the height of the third support pillars 43 in the direction perpendicular to the first substrate 101, the height of the second support pillars 42 in the direction perpendicular to the first substrate 101, and the height of the sub-spacers 402 of the display area 3 are the same. In this case, the height h3 of the third support pillar 43 in the direction perpendicular to the first substrate 101 is limited, and h3 is overlapped with the thickness of the second spacer layer 72 in the direction perpendicular to the first substrate 101, so that each of the third support pillars 43 and the second spacer layer 72 together maintain the required distance between the first substrate 101 and the second substrate 102 in the third region 23. If the third support pillar 43 is subjected to a force and deformation occurs, causing a change in height, the second spacer layer 72 can help reduce the effect of such a change on maintaining the required distance between the first substrate 101 and the second substrate 102 in the third region 23. Of course, if the situation of simplifying the manufacturing process is not taken into consideration, the third support pillar 43 can have any height in the direction perpendicular to the first substrate 101 as necessary.

[0057] For example, in the embodiment shown in FIG. 3A, the first spacer layer 71 and the second spacer layer 72 are separated from each other by a protective layer 6, or in another embodiment, as shown in FIG. 3D, the first spacer layer 71 and the second spacer layer 72 are integrally molded, thereby simplifying the structure of the display panel, and in such a case, the first spacer layer 71 and the second spacer layer 72 may be formed by performing the same patterning process on the same film layer, simplifying the fabrication process.

[0058] For example, as shown in FIG. 3A, the display panel includes a color film layer, the color film layer is located on the side of the second substrate 102 close to the first substrate 101, and includes a first portion, a second portion, and a third portion. The portion of the black matrix located in the display area 3 defines a plurality of color sub-pixels 81 / 82 / 83, and the first portion of the color film layer is located in the plurality of color sub-pixels 81 / 82 / 83 in the display area 3 and serves as a color filter layer for the plurality of color sub-pixels 81 / 82 / 83. The second portion of the color film layer is located in the second region 22 and configured as a first spacer layer 71, and the orthogonal projection of the second portion of the color film layer onto the first substrate 101 overlaps with the orthogonal projection of the black matrix 5 onto the first substrate 101. The third portion of the color film layer is located in the third region 23 and configured as a second spacer layer 72. In this way, by performing the same patterning process on the film layer for forming the color filter, the color filter in the multiple sub-pixels 81 / 82 / 83 in the display area 3, the first spacer layer 71, and the second spacer layer 72 can be simultaneously formed, which can simplify the manufacturing process and production efficiency. The first spacer layer 71 and the second spacer layer 72 can be color filters of any color, such as red, green, blue, or white, and the embodiments of the present disclosure are not limited thereto. In the above embodiment, a part of the color film layer is used as the first spacer layer 71 and the second spacer layer 72, thereby simplifying the manufacturing process of the display panel. In such a case, for example, in the embodiment shown in FIG. 3D, the color film layer in the display area 3 can be directly extended into the third area 23 as the second spacer layer 72, and of course, in other embodiments, the color film layer in the display area 3 and the second spacer layer 72 can be cut. Any other unmentioned features of the embodiment shown in FIG. 3D are the same as those in FIG. 3A, and the description for FIG. 3A may be referred to.In other embodiments, the second spacer layer 72 may not be provided in the third region 23, or color film layers may not be used as the first spacer layer 71 and the second spacer layer 72. Other film layers may be separately used to manufacture the first spacer layer 71 and the second spacer layer 72. The first spacer layer 71 and the second spacer layer 72 may be organic film layers or inorganic film layers, and the material of the organic film layer may be, for example, a resin, and the material of the inorganic film layer may be, for example, silicon oxide, silicon nitride, or silica.

[0059] For example, the spacers 40 located in the display area 3 include a plurality of main spacers 401 and a plurality of sub-spacers 402, and the main spacers 401 have a height h 41 is the height h of the sub-spacer 402 in the direction perpendicular to the first substrate 101. 42 The shape and dimensions of each of the second support columns 42 and the third support columns 43 are the same as the shape and dimensions of each of the sub-spacers 402, and the shape and dimensions of each of the first support columns 41 are the same as the shape and dimensions of each of the main spacers 401. In this way, the height h1 of each of the first support columns 41 in the direction perpendicular to the first substrate 101 is greater than the height h2 of each of the second support columns 42 in the direction perpendicular to the first substrate 101, and the height h1 of each of the first support columns 41 in the direction perpendicular to the first substrate 101 is greater than the height h3 of each of the third support columns 43 in the direction perpendicular to the first substrate 101, so that the step occurring between the second region 22 and the third region 23 due to the absence of a spacer layer in the first region 21 can be supplemented. Furthermore, the same mask can be used to form a plurality of second support pillars 42, a plurality of third support pillars 43, and a plurality of sub-spacers 402 in the same patterning process, and the same mask can be used to form a plurality of first support pillars 41 and a plurality of main spacers 401 in the same patterning process.

[0060] For example, in another embodiment, the multiple third support pillars 43 may include multiple main support pillars and multiple sub-support pillars, each of which has the same shape and dimension as each of the multiple main spacers 401, and each of which has the same shape and dimension as each of the multiple sub-spacers 402, such that the multiple second support pillars 42, the multiple sub-support pillars, and the multiple sub-spacers 402 can be formed in the same patterning process using the same mask, and the multiple first support pillars 41, the multiple main support pillars, and the multiple main spacers 401 can be formed in the same patterning process using the same mask.

[0061] For example, as shown in FIG. 3A, the display panel further includes a buffer layer 11 and a driving circuit layer 12. The buffer layer 11 is located on the side of the first substrate 101 adjacent to the second substrate 102 and is in direct contact with the first substrate 101, thereby preventing damage to the first substrate 101 caused by the subsequent etching process. That is, in the light-transmitting region 1, there is no other layer or structure between the buffer layer 11 and the first substrate 101, which is favorable to improving the light transmittance of the light-transmitting region 1, thereby improving the sensing effect of the photoelectric sensor device, realizing a higher shooting effect, such as a higher photo effect, and a faster and more accurate fingerprint recognition effect.

[0062] The driving circuit layer 12 is located on the side of the buffer layer 11 away from the first substrate 101, and is located in the display region 3 and the frame region 2. The spacers 40, the first support columns 41, the second support columns 42, and the third support columns 43 are all located between the driving circuit layer 12 and the protective layer 6, the driving circuit layer 12 is not provided in the light-transmitting region 1, and the edge of the driving circuit layer 12 close to the light-transmitting region 1 is located at the boundary between the light-transmitting region 1 and the first region 21, as shown in FIG. 3A. The thickness of the driving circuit layer 12 in a direction perpendicular to the first substrate 101 is greater than the thickness of the buffer layer 11 in a direction perpendicular to the first substrate 101, but since the driving circuit layer 12 is not provided in the light-transmitting region 1, the driving circuit layer 12 and the buffer layer 11 have a staircase structure (or steps) at the periphery of the driving circuit layer 12 adjacent to the light-transmitting region 1, so that the staircase structure (or steps) at the periphery of the driving circuit layer 12 does not enter the light-transmitting region 1, thereby avoiding the influence of the staircase structure in the light-transmitting region 1 on the uniformity of the light transmittance and the uniformity of the light transmission color. Or, in another embodiment, the periphery of the driving circuit layer 12 adjacent to the light-transmitting region 1 is located in the first region 21.

[0063] FIG. 3B is a schematic cross-sectional view of a region 103 including a driving circuit layer of a display panel according to an embodiment of the present disclosure along a first direction, and FIG. 3C is a schematic cross-sectional view of a region 103 of the driving circuit layer shown in FIG. 3B along a second direction, where the first direction is perpendicular to the second direction. For example, the display panel is a liquid crystal display panel, and liquid crystal is filled between a first substrate 101 and a second substrate 102. Combining FIG. 3B and FIG. 3C, the driving circuit layer 12 includes a film transistor, and the driving transistor is illustrated as an example. As shown in FIG. 3B, the film transistor includes a gate electrode 50, a semiconductor layer 60, and a source drain electrode layer 18, and as shown in FIG. 3C, the source drain electrode layer 18 includes a source electrode 181 and a drain electrode 182. The driving circuit layer 12 further includes a gate insulating layer 16 covering the gate electrode 50, a first insulating layer 17 insulating the semiconductor layer 60 from the source electrode 181 and the drain electrode 182, a common electrode 31, a pixel electrode 32 facing the common electrode 31, a second insulating layer 19 insulating the common electrode 31 from the source electrode 181 and the drain electrode 182, and a third insulating layer 35 insulating the common electrode 31 from the pixel electrode 32. The pixel electrode 32 is electrically connected to the drain electrode 182 through a via hole penetrating the second insulating layer 19 and the third insulating layer 35. For example, the common electrode 31 is formed on the entire surface and cut at the position where the via hole is provided. By applying a common voltage to the common electrode and a pixel voltage to the pixel electrode, the pixel voltage and the common voltage form a deflection electric field, which deflects the liquid crystal, and thus realizes color display in cooperation with the color film layer as an optical switch. For example, the driving circuit layer 12 further includes various signal lines (not shown), such as a power line for providing a voltage to the pixel electrode and the common electrode, a gate line for providing a scanning voltage to the gate electrode 50, and a data line for providing a data voltage to the source electrode 181 and the drain electrode 182, and the like, and may refer to conventional technical designs in this field.

[0064] 3A, in the light-transmitting region 1, a first liquid crystal layer 131 is provided between the buffer layer 11 and the second substrate 102, and the first liquid crystal layer 131 is in direct contact with the buffer layer 11. The first liquid crystal layer 131 includes a portion located in the light-transmitting region of the first alignment layer 91 located on the second substrate 102, a portion located in the light-transmitting region 1 of the second alignment layer 92 located on the first substrate 101, and a first liquid crystal located between the first alignment layer 91 and the second alignment layer 92. The material of the first alignment layer 91 and the second alignment layer 92 is, for example, polyimide (PI). Compared with filling with air, filling the space between the buffer layer 11 and the second substrate 102 with a first liquid crystal layer reduces the transmittance due to reflection and refraction of light at the bottom surface of the second substrate 102 and the top surface of the first substrate 101. Since the first liquid crystal layer and the glass substrate (for example, the first substrate 101 and the second substrate 102 are both glass substrates) have similar refractive indices, after filling with the first liquid crystal layer 131, the first substrate 101, the first liquid crystal layer 131, and the second substrate 102 can be regarded as a single integrated medium. As a result, the number of times that light is reflected at the bottom surface of the second substrate 102 and the top surface of the first substrate 101 is reduced, further improving the transmittance. In this solution, there is no protective layer 6 between the first substrate 101 and the second substrate 102 in the light-transmitting region 1, and only the buffer layer 11 and the first liquid crystal layer 131 are present, and no support pillars, spacers, or any other structures with heights similar to the first support pillars, second support pillars, or spacers are provided. Compared with this solution, if a spacer or a similar structure such as a support pillar is provided in the light-transmitting region 1, the spacer or the similar structure such as a support pillar will prevent light from passing through the light-transmitting region 1 to reach the photoelectric sensor device, so that the light transmittance of the region where the imaging device is provided is relatively low, and the luminance uniformity and color uniformity of the light passing through the light-transmitting region 1 to reach the photoelectric sensor device 15 are reduced, which is disadvantageous to obtaining a better shooting effect.

[0065] For example, in the frame region 2 and the display region 3, a second liquid crystal layer 132 is provided between the protective layer 6 and the driving circuit layer 12, and the liquid crystal in the first liquid crystal layer 131 and the liquid crystal in the second liquid crystal layer 132 are connected via the spacing between the multiple first support columns 41, the spacing between the multiple second support columns 42, and the spacing between the multiple third support columns 43.

[0066] For example, in another embodiment, as shown in FIG. 4, the protective layer 6 further covers the light-transmitting region 1. In the light-transmitting region 1, the protective layer 6 is in direct contact with the second substrate 102, and the first liquid crystal layer 132 is located between the buffer layer 11 and the protective layer 6 and in direct contact with the protective layer 6. In this case, in the light-transmitting region 1, only the protective layer 6, the buffer layer 11 and the first liquid crystal layer 132 are provided between the first substrate 101 and the second substrate 102, thereby improving the light transmittance of the light-transmitting region 1 and the uniformity of the brightness and color of the light reaching the photoelectric sensor device 15. At this time, for example, the protective layer 6 is formed on the entire surface of the second substrate 102, and there is no need to perform a patterning process on the protective layer 6, and the material is a thermosetting material. All other unmentioned features of the embodiment shown in FIG. 4 are the same as those in FIG. 3A, and reference may be made to the description of FIG. 3A.

[0067] For example, in another embodiment, as shown in FIG. 5, no liquid crystal layer is provided in the light-transmitting region 1. In the light-transmitting region 1, air 133 is filled between the second substrate 102 and the buffer layer 11, and the display panel includes a first sealant 14, which is located between the second substrate 102 and the buffer layer 11, surrounds the entire light-transmitting region 1, and is in direct contact with both the buffer layer 11 and the protective layer 6. In this case, only the protective layer 6, the buffer layer 11, and the air 133 are provided between the first substrate 101 and the second substrate 102 in the light-transmitting region 1, thereby improving the light transmittance of the light-transmitting region 1 and the uniformity of the brightness and color of the light reaching the photoelectric sensor device 15.

[0068] FIG. 6A is a general plan view schematic diagram of another display panel according to an embodiment of the present disclosure, FIG. 6B is a general plan view schematic diagram of yet another display panel according to an embodiment of the present disclosure, FIG. 6C is a general plan view schematic diagram of yet another display panel according to an embodiment of the present disclosure, FIG. 7A is an enlarged schematic diagram of a photoelectric sensor region and its surrounding region in FIG. 6A, and FIG. 7B is a cross-sectional schematic diagram along line B-B' in FIG. 7A. For example, in the embodiment shown in FIG. 6A and FIG. 7A, the display panel includes a plurality of light-transmitting regions. For example, the display panel includes two light-transmitting regions. In other embodiments, the display panel may include three light-transmitting regions (as shown in FIG. 6B), four light-transmitting regions (as shown in FIG. 6C), etc., and the embodiment of the present disclosure does not limit the number of light-transmitting regions. For example, two adjacent light-transmitting regions of the plurality of light-transmitting regions are the first light-transmitting region 110 and the second light-transmitting region 120, respectively. The display panel further includes an intermediate region 130 , a third spacer layer 73 , a plurality of fourth support pillars 44 , and a plurality of fifth support pillars 45 .

[0069] The intermediate region 130 is located between the second region surrounding the first light transmitting region 110 and the second region surrounding the second light transmitting region 120. The third spacer layer 73 is the same layer as the first spacer layer 71 and is connected thereto, and includes a first portion 731 and a second portion 732. The first portion 731 and the second portion 732 face each other, and the intermediate region 130 is located between the first portion 731 and the second portion 732. The plurality of fourth support pillars 44 are aligned along the first portion 731 and are spaced apart from each other. The orthogonal projection of the plurality of fourth support pillars 44 onto the first substrate 101 is such that the first portion 731 is located within the orthogonal projection onto the first substrate 101. The multiple fifth support pillars 45 are aligned along the second portion 732 and spaced apart from each other, the multiple fifth support pillars 45 are located within the orthogonal projection of the second portion 732 onto the first substrate 101, and in the direction perpendicular to the first substrate 101, the multiple fourth support pillars 44 and the multiple fifth support pillars 45 are arranged in the same layer as the multiple second support pillars 42, and the shape and dimensions of each of the multiple fourth support pillars 44 and the shape and dimensions of each of the multiple fifth support pillars 45 are the same as the shape and dimensions of each of the multiple second support pillars 42, thereby maintaining the display panel having the same cell gap (the distance between the first substrate 101 and the second substrate 102) in an appropriate area.

[0070] 7A , the display panel further includes a plurality of sixth support pillars 46 and a plurality of seventh support pillars 47. The plurality of sixth support pillars 46 are located on a side of the first portion 731 adjacent to the intermediate region 130, and are aligned along the first portion 731 and spaced apart from one another, and the plurality of seventh support pillars 47 are located on a side of the second portion 732 adjacent to the intermediate region 130, and are aligned along the second portion 732 and spaced apart from one another. In the direction perpendicular to the first substrate 101, the sixth support columns 46 and the seventh support columns 47 are disposed in the same layer as the first support columns 41, the shape and size of each of the sixth support columns 46 and the seventh support columns 47 are the same as those of the first support columns 41, and no spacer layer is disposed at the positions where the sixth support columns 46 and the seventh support columns 47 are located, thereby maintaining the same cell gap between these positions and the first region 21. This solution provides support for the frame region between two adjacent light-transmitting regions, and can maintain the same cell gap, and further improves the stability of the frame region between two adjacent light-transmitting regions, thereby maintaining the uniformity of the two light-transmitting regions.

[0071] For example, the planar shapes of the first part 731 and the second part 732 are both straight line segments parallel to each other, which makes the structure flat, simple, and easy to manufacture. Of course, in other embodiments, the planar shapes of the first part 731 and the second part 732 may also include broken lines, smooth curves, etc., and may be designed according to actual needs based on the specific shape of the frame region, as long as the region between two adjacent light-transmitting regions can achieve the required supporting effect similar to the above embodiment.

[0072] For example, in the embodiment shown in FIG. 7 , the third region surrounding the first light-transmitting region 110 and the third region surrounding the second light-transmitting region 120 are connected to each other to form an overall region that surrounds the entire frame region and separates the display region 3 from the frame region, thereby forming a transition between the frame region and the display region 3 and maintaining the stability of the peripheral edge of the display region 3 adjacent to the frame region.

[0073] In the embodiment shown in Fig. 7A-7B, the black matrix 5 covers the intermediate region 130, so that the intermediate region 130 is non-transmitting, and the structure in the intermediate region 130 is the same as the structure in the third region 23. For example, when the third support pillars 43 in the third region 23 include a plurality of main support pillars and a plurality of sub support pillars, as shown in Fig. 7B, a plurality of intermediate spacers 49 are provided in the intermediate region 130, and the plurality of intermediate spacers 49 include a plurality of intermediate main spacers 491 and a plurality of intermediate sub spacers 492, and the shape and size of each of the plurality of intermediate main spacers 491 are the same as the shape and size of each of the plurality of main support pillars in the third region 23 and the shape and size of each of the plurality of main spacers 401 in the display region 3, and the shape and size of each of the plurality of intermediate sub spacers 492 are the same as the shape and size of each of the plurality of sub support pillars in the third region 23. The shapes and dimensions of the intermediate sub-spacers 492, the second support columns 42, the sub-support columns, and the sub-spacers 402 in the display area 3 are the same, so that the intermediate area and the first area 21 maintain the same cell gap, and the intermediate sub-spacers 492, the second support columns 42, the sub-support columns, and the sub-spacers 402 can be formed in the same patterning process using the same mask, and the intermediate main spacers 491, the first support columns 41, the main support columns, and the main spacers 401 can be formed in the same patterning process using the same mask. Any other unmentioned features of the embodiment shown in FIG. 7A are the same as those in FIG. 3A, and reference is made to the description of the embodiment shown in FIG. 3A.

[0074] In other embodiments, the third support columns 43 in the third region 23 may not include a main support column, and the intermediate region 130 may not include an intermediate main spacer, and the shape and size of each of the intermediate spacers 49 in the intermediate region 130 and the shape and size of each of the third support columns 43 in the third region 23 are the same as the shape and size of each of the sub-spacers 402 in the display region 3. For example, the third support columns 43 in the third region 23 may include the main support columns, and the intermediate spacers 49 in the intermediate region 130 may not include the intermediate main spacer 491, or the third support columns 43 in the third region 23 may not include the main support columns, and the intermediate spacers 49 in the intermediate region 130 may include the intermediate main spacer 491, i.e. the above features may be combined with each other.

[0075] 8A is another enlarged schematic view of the photoelectric sensor region and its surrounding region in FIG. 6A, and FIG. 8B is a cross-sectional schematic view taken along line C-C' in FIG. 8A. For example, the embodiment shown in FIG. 8A-8B is different from the embodiment shown in FIG. 7A in that the intermediate region 130 is an intermediate display region, the intermediate display region 130 includes a plurality of intermediate pixels arranged in an array, each of the plurality of intermediate pixels includes a plurality of color intermediate sub-pixels, the black matrix 5 defines the plurality of color intermediate sub-pixels in the intermediate display region 130, and the light transmittance of the intermediate display region 130 is smaller than that of the display region 3, i.e., the intermediate display region 130 is a gradation display region, and the luminance of the intermediate display region 130 is relatively dark, and the luminance is 30% or less of the luminance of the display region 3. For example, the aperture ratio of the intermediate display region 130 is smaller than that of the display region 3 by providing different areas for the portion of the black matrix 5 located in the intermediate display region 130 and the portion of the black matrix 5 located in the display region 3. For example, in the embodiment shown in FIG. 8A and FIG. 8B, the line width w2 of the part of the black matrix 5 located in the intermediate display area 130 is larger than the line width w1 of the part of the black matrix 5 located in the display area 3, thereby realizing that the brightness of the intermediate display area 130 is 30% or less of the brightness of the display area 3. Of course, in other embodiments, a light transmittance adjusting film layer, for example a filter layer (not the above-mentioned color film layer), is separately provided in the intermediate display area 130 to reduce the light transmittance of the intermediate display area 130, thereby realizing that the brightness of the intermediate display area 130 is 30% or less of the brightness of the display area 3. In this embodiment, the brightness of the intermediate display area 130 is reduced to realize a dark display, for example, a black screen is always displayed in the intermediate display area 130 by a display driving circuit, which simplifies the structure of the intermediate display area 130, simplifies the design of the display driving circuit, and reduces the process difficulty, and since the area of ​​the intermediate display area 130 is very small, such a method does not obviously affect the display effect near the intermediate display area 130.

[0076] Or, in another embodiment, the intermediate display area 130 is a normal display area, and the light transmittance of the intermediate display area 130 is equal to the light transmittance of the display area 3, i.e., displays normally, thereby improving the display quality near the intermediate display area 130 and better enhancing the user experience.

[0077] 8A, the display panel further includes a plurality of intermediate spacers, which are located in the intermediate display area 130 and arranged in an array. For example, the structure of the plurality of intermediate spacers is the same as the structure of the plurality of spacers 40 in the display area 3.

[0078] For example, in at least one embodiment, the arrangement density of the intermediate minor spacers 492 in the intermediate display region 130 is less than the arrangement density of the minor spacers 402 in the display region 3. For example, in the intermediate display region, the arrangement density of the intermediate main spacers 491 is less than the arrangement density of the main spacers 401 in the display region 3, and the arrangement density of the intermediate minor spacers 492 is less than the arrangement density of the minor spacers 402 in the display region 3. For example, in the display region 3, the arrangement density of the sub-spacers 402 is 287 / 288, i.e., 287 sub-spacers 402 are provided corresponding to each of the 288 sub-pixels in the display region 3; for example, the arrangement density of the main spacers 401 is 1 / 288, i.e., one main spacer 401 is provided corresponding to each of the 288 sub-pixels in the display region 3; however, in the intermediate display region, the arrangement density of the intermediate sub-spacers 492 is 70 / 72, i.e., 70 intermediate sub-spacers 492 are provided corresponding to each of the 72 sub-pixels in the intermediate display region; for example, the arrangement density of the intermediate main spacers 491 is 1 / 72, i.e., one intermediate main spacer 491 is provided corresponding to each of the 72 sub-pixels in the intermediate display region.As described above, the area of ​​the black matrix 5 in the intermediate display area is relatively large compared to the display area 3. In the manufacturing process of the display panel, after forming the black matrix 5, the black matrix 5 defines a plurality of sub-pixel openings in the display area 3 and a plurality of intermediate sub-pixel openings in the intermediate display area, and the dimension of each intermediate sub-pixel opening is smaller than the dimension of each sub-pixel opening. In the subsequent process of forming, for example, a protective layer 6, the film layer for forming the protective layer 6 is more likely to enter the sub-pixel openings compared to the intermediate sub-pixel openings, so generally, the thickness of the portion of the protective layer 6 located in the intermediate display area after final hardening is larger in the direction perpendicular to the first substrate 101 than the thickness of the portion of the protective layer 6 located in the display area 3 in the direction perpendicular to the first substrate 101, that is, the protective layer further covers the intermediate display area, and the thickness of the portion of the protective layer covering the intermediate display area in the direction perpendicular to the first substrate is larger than the thickness of the portion of the protective layer covering the display area in the direction perpendicular to the first substrate. Therefore, spacers of the same size are more likely to be deformed under the action of external force in the display area 3 than in the intermediate display area, i.e., the intermediate main spacers 491 and the intermediate sub spacers 492 in the intermediate display area are less likely to be deformed. The number and distribution density of the intermediate sub spacers 492 are much greater than the number and distribution density of the intermediate main spacers 491, so that the number and distribution density of the sub spacers 492 have a great impact on the stability of the cell gap in the intermediate display area 130. Therefore, by making the arrangement density of the intermediate sub spacers 492 in the intermediate display area 130 smaller than the arrangement density of the sub spacers 402 in the display area 3, the deformation possibility or deformation amount of the intermediate sub spacers 492 in the intermediate display area 130 is increased, so that it can play a sufficient buffering role in the intermediate display area, maintain a stable cell gap, and maintain the same cell gap as in the display area 3 as much as possible.

[0079] In Figures 6A-6B, the light-transmitting regions are arranged along a straight line, i.e., the planar arrangement of the light-transmitting regions is a straight line segment. In other embodiments, the light-transmitting regions may not be arranged along a straight line. For example, the planar arrangement of the light-transmitting regions is a polygonal shape such as a triangle or a rectangle, or a circle, and the embodiments of the present disclosure are not limited thereto. For a situation in which the display panel includes a plurality of light-transmitting regions, such as three or four, the structure of the intermediate region between any two adjacent light-transmitting regions is the same as the structure of the intermediate region in Figures 7A-7B, or the structure of the intermediate display region in Figures 8A-8B, and the third region 23 exists between the frame region 2 and the display region 3, and the redundant description will not be repeated here.

[0080] For example, in the embodiment shown in FIG. 6C, the photoelectric sensor region 20 includes at least three light-transmitting regions, such as a first light-transmitting region 110, a second light-transmitting region 120, a third light-transmitting region 1300, and an auxiliary function region 140. For example, the auxiliary function region 140 is a light-supplying region, which is used to provide a light-supplying lamp. The light-supplying lamp is configured to emit a supplementary light when the first light-transmitting region 110, the second light-transmitting region 120, and the third light-transmitting region 1300 are activated. The supplementary light is emitted to the object to be photographed, such as a finger (light). The light can be reflected by any object, such as a fingerprint recognition device (if the photoelectric sensor device is a fingerprint recognition device) or a face (if the photoelectric sensor device is a face recognition device or a camera), and then enter the first light-transmitting region 110, the second light-transmitting region 120, and the third light-transmitting region 1300, and is received by the photoelectric sensor devices provided in the first light-transmitting region 110, the second light-transmitting region 120, and the third light-transmitting region 1300, thereby improving the shooting quality of the photoelectric sensor device when the external light is insufficient. For example, in some other embodiments, the auxiliary function region 140 is also replaced by a fourth light-transmitting region, that is, the photoelectric sensor region 20 includes four light-transmitting regions, and each of the four light-transmitting regions is used to provide the photoelectric sensor device. At this time, the first light-transmitting region 110, the second light-transmitting region 120, the third light-transmitting region 1300, and the fourth light-transmitting region 140 are arranged in a 2×2 matrix, and the planar arrangement shape is a rectangle.

[0081] 6C, the first light-transmitting region 110, the second light-transmitting regions 120 and 1300, and the auxiliary functional region are arranged in a 2×2 matrix, and the interval between the first and second rows of the 2×2 matrix and the interval between the first and second columns of the 2×2 matrix form a cross-shaped region 150, and the structure within the cross-shaped region 150 is the same as the structure within the intermediate region. Other structures between the adjacent regions, such as the fourth support pillar, the fifth support pillar, the sixth support pillar, and the seventh support pillar, are all the same as those described in the previous embodiment, and redundant descriptions will not be repeated here.

[0082] In the above embodiment, the position of the photoelectric sensor region 20 is close to the periphery of the display panel, i.e., close to the non-display region, so that the signal lines for controlling the operation of the photoelectric sensor device in the photoelectric sensor region 20 can easily access the photoelectric sensor region 20, for example, these signal lines may directly access the photoelectric sensor region 20 from the non-display region without passing through the display region. In other embodiments, the photoelectric sensor region 20 may be located at other positions. For example, FIG. 6D is an overall plan schematic diagram of yet another display panel according to one embodiment of the present disclosure. As shown in FIG. 6D, the photoelectric sensor region 20 is located in the middle region of the display panel, and at this time, at least a part of the signal lines, for example, a power supply line (such as a VDD line), needs to pass through the display region 3, and the orthogonal projection of the signal line onto the black matrix in the display region 3 is located within the black matrix. If necessary, an insulating layer may be provided between the signal line and the signal line in the black matrix to prevent signal crosstalk.

[0083] For example, in the above embodiment, the display panel is a liquid crystal display panel, the first substrate 101 is an array substrate, and the second substrate 102 is a color filter substrate. Or, in another embodiment, the display panel is an organic light emitting diode (OLED) display panel, the first substrate 101 is an array substrate, and the second substrate 102 is a package cover plate, and other corresponding structures may be designed based on the structure of the OLED display panel. Of course, in the OLED display panel, a package film may be adopted for packaging instead of the package cover plate.

[0084] In the embodiments of the present disclosure, for example, the first substrate 101 and the second substrate 102 are both base substrates, such as a glass substrate, a quartz substrate, a polyimide substrate, etc., and the embodiments of the present disclosure do not limit the specific materials of the first substrate 101 and the second substrate 102.

[0085] 9 is a schematic diagram of a method for manufacturing a display panel according to an embodiment of the present disclosure. As shown in FIG. 9, a buffer layer 11, a driving circuit layer 12, a second alignment layer 92, a first support pillar, a second support pillar, a third support pillar, and a spacer are sequentially manufactured on a first substrate 101, a black matrix 5, a plurality of pixels, a first spacer layer, a second spacer layer, a protective layer, and other necessary film layers are manufactured on a second substrate 102, and a second sealant 140 is coated on the second substrate 102 to surround the display area, for example, liquid crystal is dropped on the first substrate 101, and the area of ​​the light-transmitting region 1 is very small compared to the liquid crystal droplets on which the liquid crystal is dropped, and it is difficult to drop the liquid crystal accurately and directly on the light-transmitting region 1, so the liquid crystal may be dropped on a relatively large area such as the display area 3. Then, the second substrate 102 and the first substrate 101 are bonded together, and the second substrate 102 and the first substrate 101 are bonded together by the second sealant 140. The liquid crystal flows into the light-transmitting region 1 through the second region 22 and the first region 21 in sequence, and through the gaps between the multiple first support pillars 41 and the gaps between the multiple second support pillars 42, thereby filling the light-transmitting region 1 with liquid crystal.

[0086] In the manufacturing method of the display panel, the first spacer layer 71 and the second spacer layer 72 may be formed by performing the same patterning process on the same film layer, and the color filters in the sub-pixels 81 / 82 / 83 in the display area 3, the first spacer layer 71, and the second spacer layer 72 can be formed simultaneously by performing the same patterning process on the film layer for forming the color filters, and the second support columns 42, the third support columns 43, the sub-spacers 402, the fourth support columns 44, and the fifth support columns 45 are formed in the same patterning process using the same mask, and the first support columns 41, the main spacers 401, the sixth support columns 46, and the seventh support columns 47 are formed in the same patterning process using the same mask, thereby simplifying the manufacturing process. Note that the structure of the intermediate spacers and the spacers 40 in the display area 3 are formed using the same mask in the same patterning process.

[0087] For example, in the process of forming the display panel shown in Fig. 3A, a protective material layer is formed to cover the entire second substrate 102, and then a patterning process is performed on the protective material layer using a mask to remove the portion of the protective material layer located in the light-transmitting region 1, thereby obtaining the protective layer 6 shown in Fig. 3A. At this time, the material of the protective layer 6 is, for example, a photosensitive material, such as a photosensitive resin.

[0088] For example, in the process of forming the display panel shown in FIG. 5, after forming a first sealant 14 surrounding the entire light-transmitting area 1 on the first substrate 11, for example, by adopting fine coating, liquid crystal is then dropped onto the display area 3 of the first substrate 11, and further bonding is performed.

[0089] FIG. 10 is a schematic diagram of a display device according to an embodiment of the present disclosure. As shown in FIG. 10, the display device 1000 includes any one of the display panels 100 according to the embodiments of the present disclosure. For example, the display device 1000 is a liquid crystal display device or an OLED display device. For example, the display device can be realized as any product or component having a display function, such as a mobile phone, a tablet computer, a display, a notebook computer, an ATM machine, etc. The display device 1000 has all the technical effects of the display panel 100, and redundant description will not be repeated here.

[0090] For example, the side of the second substrate 102 away from the first substrate 101 is the display side. The display device further includes a photoelectric sensor device 15, as shown in FIG. 3A. For example, the photoelectric sensor device 15 is located on the side of the first substrate 101 away from the second substrate 102, and the photoelectric sensor device 15 is configured to receive light from the display side, that is, the light from the display side reaches the photoelectric sensor device 15 through the light-transmitting region. The amount of light received by the photoelectric sensor device 15 in the display device according to the embodiment of the present disclosure is relatively large, the brightness uniformity of the light is relatively high, and the color uniformity is relatively high.

[0091] For example, other structures of the display device 1000, such as a backlight required for a liquid crystal display device, may be designed with reference to conventional techniques in this field, and the embodiments of the present disclosure are not limited thereto.

[0092] For example, the display device may be a display module, such as a display device including the above-mentioned display panel and the photoelectric sensor device 15, or a display device including the above-mentioned display panel and a backlight and further including other structures, such as a mobile phone, a tablet computer, a display, a notebook computer, an ATM machine, or other products.

[0093] What has been described above is only an exemplary embodiment of the present invention, and is not intended to limit the protection scope of the present invention, which is determined by the appended claims. [Explanation of symbols]

[0094] 1 Light transmission area 2 Frame Area 3 Display area 5 Black Matrix 6 Protective layer 8 pixels 11 Buffer layer 12 Drive circuit layer 15 Photoelectric sensor devices 18 Source / drain electrode layer 19 Second insulating layer 20 Photoelectric sensor area 21 First area 22 Second area 23 Third area 31 Common electrode 32 Pixel electrode 35 Third insulating layer 40 Spacer 41, 411, 412 1st support column 42 Second support column 43 Third support pillar 61 Part 1 62 Part 2 71 First spacer layer 72 Second spacer layer 81 1st sub-pixel 82 Second sub-pixel 83 3rd sub-pixel 91 First alignment layer 92 Second alignment layer 101 First board 102 Second board 110 1st light transmission area 120 2nd light transmission area 130 Intermediate area 140 Auxiliary Function Area 150 Cruciform area 401 Main spacer 402 Sub-spacer 1300 Third light transmission area

Claims

1. A display region and a photoelectric sensor region, the display region being located outside the photoelectric sensor region, the display region including a plurality of pixels arranged in an array, each pixel including a plurality of color sub-pixels, the photoelectric sensor region including a light-transmitting region and a frame region surrounding the light-transmitting region, the frame region including: a first region surrounding the light transmitting region; a second region located on a side of the first region away from the light transmitting region and surrounding the first region; A display region and a photoelectric sensor region including a third region that is located on a side of the second region away from the light transmitting region and is located between the second region and the display region, thereby separating the second region and the display region; a plurality of spacers arranged in an array, the spacers being located within the display region but not within the light-transmitting region; a plurality of first support posts located within the first region and spaced apart from one another and aligned about the light transmitting region; a second plurality of support posts located within the second region and spaced apart from one another and aligned about the second region; a plurality of third support columns located in the third region and arranged in an array, The display panel includes: A first substrate; a second substrate facing the first substrate; a black matrix, the black matrix being located on a side of the second substrate adjacent to the first substrate, covering the frame region and defining the color sub-pixels in the display region, the spacers, the first support pillars, the second support pillars, and the third support pillars being located within an orthogonal projection of a black matrix on the first substrate; a protective layer located on the second substrate and on a side of the black matrix adjacent to the first substrate, covering the frame region and the display region, wherein the plurality of spacers, the plurality of first support pillars, the plurality of second support pillars, and the plurality of third support pillars are located between the first substrate and the protective layer, thereby maintaining a distance between the first substrate and the second substrate.

2. 2. The display panel of claim 1, further comprising a first spacer layer located in the second region and between the black matrix and the protective layer, the first substrate being positioned within a positive projection of a first spacer layer on the first substrate of the plurality of second support pillars.

3. The display panel according to claim 2 , wherein a planar arrangement pattern of the first spacer layer is a closed ring surrounding the first region.

4. In the first region, the protective layer is in direct contact with the black matrix; the protective layer has a staircase structure in the first region, the staircase structure including a first portion away from the second region and a second portion adjacent to the second region; 4. The display panel of claim 2, wherein in a direction perpendicular to the first substrate, a height of the first portion is smaller than a height of the second portion, and a height of the first support pillar is greater than a height of the second support pillar.

5. 5. The display panel according to claim 1, wherein the planar arrangement pattern of the plurality of first support columns includes at least one ring shape.

6. A planar arrangement pattern of the plurality of first support columns includes a plurality of concentric rings, The display panel of claim 5 , wherein the first support pillars in the plurality of concentric rings are aligned along a radial direction of the concentric rings, or the first support pillars in adjacent concentric rings among the plurality of concentric rings intersect.

7. 7. The display panel of claim 6, wherein a ratio of a total area of ​​the orthogonal projection of the first support pillars on the first substrate to a total area of ​​the orthogonal projection of the second support pillars on the first substrate is 5 to 10.

8. 8. The display panel of claim 7, wherein the distance between the centers of two adjacent first support pillars among the plurality of first support pillars located in the same concentric ring is equal to the length or width of one pixel in the display area.

9. 5. The display panel of claim 4, further comprising a second spacer layer located in the third region and between the black matrix and the protective layer, the third support pillars being projected on the first substrate within a positive projection of a second spacer layer on the first substrate.

10. The display panel of claim 9 , wherein the first spacer layer is integrally formed with the second spacer layer or is separated from the second spacer layer by the protective layer.

11. a color film layer located on a side of the second substrate adjacent to the first substrate and including a first portion, a second portion, and a third portion; the first portion of the color film layer is located in a plurality of color sub-pixels of the display area, and an orthogonal projection of the first portion of the color film layer on the first substrate does not overlap with an orthogonal projection of the black matrix on the first substrate; a second portion of the color film layer is located in the second region and configured as the first spacer layer, and an orthogonal projection of the second portion of the color film layer on the first substrate overlaps with an orthogonal projection of the black matrix on the first substrate; 11. The display panel of claim 9 or 10, wherein a third portion of the color film layer is located in the third region and configured as the second spacer layer.

12. the plurality of spacers located in the display region include a plurality of main spacers and a plurality of sub-spacers, and a height of the main spacers in a direction perpendicular to the first substrate is greater than a height of the sub-spacers in a direction perpendicular to the first substrate; the shape and size of each of the second support columns and the shape and size of each of the third support columns are the same as the shape and size of each of the minor spacers; The display panel of claim 11 , wherein the shape and size of each of the plurality of first support columns are the same as the shape and size of each of the plurality of main spacers.

13. a buffer layer located on a side of the first substrate adjacent to the second substrate and in direct contact with the first substrate; a driving circuit layer located on a side of the buffer layer away from the first substrate, the driving circuit layer being located in the display region and the frame region; The display panel of any one of claims 1 to 4, wherein the plurality of spacers, the plurality of first support pillars, the plurality of second support pillars, and the plurality of third support pillars are all located between the driving circuit layer and the protective layer, no driving circuit layer is provided in the light-transmitting region, and a periphery of the driving circuit layer adjacent to the light-transmitting region is located in the first region or at the boundary between the light-transmitting region and the first region.

14. The display panel of claim 13 , wherein in the light-transmitting region, a first liquid crystal layer is provided between the buffer layer and the second substrate, the first liquid crystal layer being in direct contact with the buffer layer.

15. 15. The display panel of claim 14, wherein in the frame region and the display region, a second liquid crystal layer is provided between the protective layer and the driving circuit layer, and the liquid crystal in the first liquid crystal layer and the liquid crystal in the second liquid crystal layer are communicated through the spacing between the plurality of first support pillars, the spacing between the plurality of second support pillars, and the spacing between the plurality of third support pillars.

16. 16. The display panel of claim 14 or 15, wherein the protective layer further covers the light-transmitting region, and in the light-transmitting region, the protective layer is in direct contact with the second substrate, and the first liquid crystal layer is located between the buffer layer and the protective layer and in direct contact with the protective layer.

17. No liquid crystal layer is provided in the light transmitting region, In the light transmitting region, air is filled between the second substrate and the buffer layer, The display panel of any one of claims 13 to 16, wherein the display panel includes a first sealant, the first sealant being located between the second substrate and the buffer layer, surrounding the light-transmitting region and in direct contact with the buffer layer and the protective layer.

18. The display panel includes a plurality of the light-transmitting regions, and two adjacent light-transmitting regions are a first light-transmitting region and a second light-transmitting region, respectively. an intermediate region located between a second region surrounding the first light transmitting region and a second region surrounding the second light transmitting region; a third spacer layer that is the same layer as the first spacer layer and is connected thereto, the third spacer layer including a first portion and a second portion, the first portion and the second portion being opposed to each other in a direction perpendicular to a direction from the first light transmitting region to the second light transmitting region in a plane parallel to the first substrate, and the intermediate region being located between the first portion and the second portion; a plurality of fourth support pillars aligned along the first portion and spaced apart from one another, where the orthogonal projections of the plurality of fourth support pillars on the first substrate lie within the orthogonal projections of the first portion on the first substrate; 13. The display panel of claim 11 or 12, further comprising a plurality of fifth support pillars arranged along the second portion and spaced apart from each other, with the orthogonal projection on the first substrate being located within the orthogonal projection on the first substrate of the second portion, and in a direction perpendicular to the first substrate, the plurality of fourth support pillars and the plurality of fifth support pillars are provided in the same layer as the plurality of second support pillars, and the shapes and dimensions of each of the plurality of fourth support pillars and the shapes and dimensions of each of the plurality of fifth support pillars are the same as the shapes and dimensions of each of the plurality of second support pillars.

19. a plurality of sixth support posts located on a side of the first portion adjacent the intermediate region and aligned along the first portion and spaced apart from one another; a plurality of seventh support posts located on a side of the second portion adjacent the intermediate region and aligned along the second portion and spaced apart from one another; 19. The display panel of claim 18, wherein in a direction perpendicular to the first substrate, the sixth support pillars and the seventh support pillars are provided in the same layer as the first support pillars, and the shape and dimensions of each of the sixth support pillars and the shape and dimensions of each of the seventh support pillars are the same as the shape and dimensions of each of the first support pillars.

20. 20. The display panel according to claim 18, wherein the first portion and the second portion have planar shapes that are both straight line segments and are parallel to each other.

21. 21. The display panel according to claim 18, wherein the black matrix covers the intermediate region, and a structure in the intermediate region is the same as a structure in the third region.

22. 21. The display panel of claim 18, wherein the intermediate region is an intermediate display region, the intermediate display region includes a plurality of intermediate pixels arranged in an array, each of the plurality of intermediate pixels includes a plurality of color intermediate sub-pixels, the black matrix defines the plurality of color intermediate sub-pixels in the intermediate display region, and the light transmittance of the intermediate display region is equal to or lower than the light transmittance of the display region.

23. the protective layer further covers the intermediate display area; 23. The display panel of claim 22, wherein a thickness of the portion of the protective layer covering the intermediate display area in a direction perpendicular to the first substrate is greater than a thickness of the portion of the protective layer covering the display area in a direction perpendicular to the first substrate.

24. The display device further includes a plurality of intermediate spacers arranged in an array in the intermediate display area, 24. The display panel according to claim 22 or 23, wherein a structure of the intermediate spacers is the same as a structure of the spacers in the display area.

25. The display device further includes a plurality of intermediate spacers arranged in an array in the intermediate display area, 25. The display panel according to claim 22, wherein an arrangement density of the intermediate spacers in the intermediate display region is lower than an arrangement density of the spacers in the display region.

26. The display panel of any one of claims 18 to 25, wherein the photoelectric sensor region includes at least three light-transmitting regions and an auxiliary functional region, the at least three light-transmitting regions and the auxiliary functional region are arranged in a 2x2 matrix, the spacing between a first row and a second row of the 2x2 matrix and the spacing between a first column and a second column of the 2x2 matrix form a cross-shaped region, and a structure within the cross-shaped region is the same as a structure within the intermediate region.

27. The display panel is a liquid crystal display panel, the first substrate is an array substrate, and the second substrate is a color filter substrate; or The display panel of any one of claims 1 to 26, wherein the display panel is an organic light emitting diode (OLED) display panel, the first substrate is an array substrate, and the second substrate is a package cover plate.

28. A display device comprising the display panel according to any one of claims 1 to 27.

29. a side of the second substrate away from the first substrate is a display side, The display device includes:

30. The display device of claim 28, further comprising a photoelectric sensor device located in the light-transmitting region and on a side of the first substrate away from the second substrate, the photoelectric sensor device being configured to receive light from the viewing side.

Images