Display panel and display device

Abstract

The embodiment of the utility model provides a display panel and a display device. The display panel comprises a light-transmitting substrate and a sub-panel, and the light-transmitting substrate is provided with a first shading part and a second shading part; the sub-panel comprises a plurality of sub-pixels, and a gap exists between every two adjacent sub-pixels; the at least two sub-panels are arranged on one side of the light-transmitting substrate side by side, and a splicing seam is arranged between every two adjacent sub-panels; wherein the light-transmitting substrate is located on the light emitting side of the sub-panel, the orthographic projection, on the light-transmitting substrate, of the first shading part is at least partially overlapped with the orthographic projection, on the light-transmitting substrate, of the splicing seam, and the orthographic projection, on the light-transmitting substrate, of the second shading part is at least partially overlapped with the orthographic projection, on the light-transmitting substrate, of at least part of the gap. The first shading part is used for shading the splicing seam between the sub-panels and reducing the influence of the splicing seam on the display effect, the second shading part is used for shading the gap, the second shading part can reduce the situation that external light enters the sub-panels to form reflected light, the display effect is improved, and the processing performance of a display product is improved.

Description

Technical Field

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

[0002] Organic Light Emitting Diode (OLED) and flat panel display devices based on technologies such as Light Emitting Diode (LED) have been widely used in various consumer electronic products such as mobile phones, televisions, laptops, desktop computers, etc. due to their advantages such as high image quality, power saving, thin body and wide application range, becoming the mainstream in display devices.

[0003] The existing spliced ​​display panel is composed of multiple sub-display panels. According to different usage requirements, the sub-display panels can be used as displays alone or spliced ​​into an ultra-large screen. However, the process performance of current display products needs to be improved. Utility Model Content

[0004] The embodiments of the present application provide a display panel and a display device, aiming to improve the process performance of display products.

[0005] An embodiment of the first aspect of the present application provides a display panel, comprising: a light-transmitting substrate and a sub-panel, wherein a first light-shielding portion and a second light-shielding portion are arranged on the light-transmitting substrate; the sub-panel comprises a plurality of sub-pixels, and a gap exists between at least some adjacent two sub-pixels; at least two sub-panels are arranged side by side on one side of the light-transmitting substrate, and a joint seam is formed between two adjacent sub-panels; wherein the light-transmitting substrate is located on the light-emitting side of the sub-panel, the orthographic projection of the first light-shielding portion on the light-transmitting substrate at least partially overlaps with the orthographic projection of the joint seam on the light-transmitting substrate, and the orthographic projection of the second light-shielding portion on the light-transmitting substrate at least partially overlaps with the orthographic projection of at least part of the gap on the light-transmitting substrate.

[0006] According to some embodiments of the present application, the first light shielding portion and the second light shielding portion are disposed on a side of the light-transmitting substrate facing the sub-panel.

[0007] According to some embodiments of the present application, the second light shielding portion is disposed on the same layer as the first light shielding portion.

[0008] According to some embodiments of the present application, the width of the second light shielding portion is not greater than that of the first light shielding portion.

[0009] According to some embodiments of the present application, the sub-panel includes a plurality of sub-pixels, the plurality of sub-pixels are arranged in an array, and the second light shielding portion is a grid-like structure.

[0010] According to some embodiments of the present application, a plurality of sub-panels are arranged in an array on one side of the light-transmitting substrate, and the first light-shielding portion is a grid-like structure.

[0011] According to some embodiments of the present application, an optical adhesive layer is disposed between the sub-panel and the light-transmitting substrate.

[0012] According to some embodiments of the present application, N sub-panels are arranged side by side along the length direction of the transparent substrate, and M sub-panels are arranged side by side along the width direction of the transparent substrate, where M is greater than 2 and N is greater than 2.

[0013] According to some embodiments of the present application, a first mark is provided on the first light shielding portion, and a second mark is provided on each sub-panel, and the first mark and the second mark are used for alignment.

[0014] According to some embodiments of the present application, the first light shielding portion is disposed on a side of the light-transmitting substrate facing the sub-panel, and the first mark is disposed on a side of the first light shielding portion facing away from the light-transmitting substrate.

[0015] According to some embodiments of the present application, the first light shielding portion is provided with a plurality of first marks arranged at intervals, and the second mark arranged on each sub-panel corresponds to at least one first mark.

[0016] According to some embodiments of the present application, each sub-panel is provided with a plurality of second marks arranged at intervals, the first shading portion is provided with a plurality of first marks arranged at intervals, and the first marks and the second marks are arranged in a one-to-one correspondence.

[0017] According to some embodiments of the present application, the first mark and the second mark are staggered along the extension direction of the light-transmitting substrate.

[0018] According to some embodiments of the present application, an orthographic projection of the second mark on the light-transmitting substrate at least partially overlaps with an orthographic projection of at least part of the gap on the light-transmitting substrate.

[0019] According to some embodiments of the present application, a metal trace is disposed at the gap position, and an orthographic projection of the second light shielding portion on the light-transmitting substrate at least partially overlaps with an orthographic projection of the metal trace on the light-transmitting substrate.

[0020] According to some embodiments of the present application, the first light shielding portion and the second light shielding portion include a conductive material.

[0021] According to some embodiments of the present application, the materials forming the first light shielding portion and the second light shielding portion include conductive particles.

[0022] According to some embodiments of the present application, the sub-panel also includes a driving circuit layer and a substrate stacked in sequence in a direction away from the transparent substrate, the driving circuit layer includes a circuit board, and at least part of the circuit board is bound to a side of the substrate away from the driving circuit layer.

[0023] According to some embodiments of the present application, the sub-panel further includes a heat dissipation layer, and the heat dissipation layer is disposed between the driving circuit layer and the substrate.

[0024] According to some embodiments of the present application, the material of the heat dissipation layer includes aluminum.

[0025] According to some embodiments of the present application, at least two sub-panels are arranged side by side to form a sub-panel group, and the orthographic projection of the first light shielding portion on the transparent substrate at least partially overlaps with the orthographic projection of the edge of the sub-panel group in the extending direction on the transparent substrate.

[0026] An embodiment of the second aspect of the present application further provides a display device, comprising the display panel in any embodiment of the first aspect.

[0027] In an embodiment of the present application, the sub-panels are arranged side by side, and a joint seam is generated between adjacent sub-panels. A transparent substrate is arranged on the light-emitting side of the sub-panel, and a first light-shielding portion is arranged on the transparent substrate. The orthographic projection of the first light-shielding portion on the transparent substrate overlaps at least partially with the orthographic projection of the joint seam on the transparent substrate. The first light-shielding portion is used to shield the joint seam between the sub-panels, thereby reducing the influence of the inconsistent joint seam on the display effect of the display panel. At the same time, in the dark mode, the influence of the inconsistent joint seam on the appearance of the display panel can also be reduced. The orthographic projection of the second light-shielding portion on the transparent substrate overlaps at least partially with the orthographic projection of the gap between the sub-pixels on the transparent substrate. The second light-shielding portion is staggered with the sub-pixel to reduce the influence on the light-emitting effect. The second light-shielding portion can reduce the external light from entering the sub-panel to form reflected light, thereby improving the display effect and the process performance of the display product. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Other features, objects and advantages of the present application will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals represent the same or similar features.

[0029] Figure 1 is a structural schematic diagram of a display panel provided in an embodiment of the present application;

[0030] Figure 2 is a schematic structural diagram of a light-transmitting substrate of a display panel provided in an embodiment of the present application;

[0031] Figure 3 is a schematic diagram of the structure of another light-transmitting substrate of a display panel provided in an embodiment of the present application;

[0032] Figure 4 is a schematic diagram of an alignment process of a display panel provided in an embodiment of the present application;

[0033] Figure 5 This is a schematic diagram of the structure of a light-transmitting substrate of another display panel provided in an embodiment of the present application;

[0034] Figure 6is a schematic structural diagram of another light-transmitting substrate of a display panel provided in an embodiment of the present application;

[0035] Figure 7 yes Figure 6 A partial enlarged view of the middle area A;

[0036] Figure 8 It is a schematic diagram of the structure of a sub-panel of a display panel provided in an embodiment of the present application.

[0037] Explanation of the reference numerals in the accompanying drawings: 100, transparent substrate; 110, first shading portion; 111, first mark; 120, second shading portion; 200, sub-panel; 210, joint seam; 220, second mark; 300, sub-pixel; 320, gap; 330, metal trace; 400, driving circuit layer; 410, circuit board; 500, substrate; 600, heat dissipation layer; 700, adhesive layer; 800, sub-panel group; X, length direction; Y, width direction. DETAILED DESCRIPTION

[0038] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating examples of the present application. In the accompanying drawings and the following description, at least some of the known structures and technologies are not shown to avoid unnecessary ambiguity in the present application; and, for clarity, the size of some structures may be exaggerated. In addition, the features, structures or characteristics described below may be combined in one or more embodiments in any suitable manner.

[0039] In the description of the present application, it should be noted that, unless otherwise specified, "multiple" means more than two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating directions or positional relationships, are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0040] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the embodiments of the present application. In the description of the present application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0041] In order to better understand this application, Figures 1 to 8 The display panel according to the embodiment of the present application is described in detail.

[0042] In a spliced ​​display panel product, the input signal of the spliced ​​display panel is processed by the image controller and then distributed to each sub-panel for display. In order to improve the display effect of the display panel, it is usually required that there is a minimum gap between the spliced ​​sub-panels. When multiple sub-panels are spliced, the size of the splicing seam may be inconsistent, which in turn affects the display effect of the display panel in bright mode and the appearance of the display panel in dark mode.

[0043] Based on this, Figure 1 As shown, a display panel provided by an embodiment of the first aspect of the present application comprises: a transparent substrate 100 and a sub-panel 200, wherein a first light shielding portion 110 and a second light shielding portion 120 are arranged on the transparent substrate 100; the sub-panel 200 comprises a plurality of sub-pixels 300, and a gap 320 exists between at least some of the adjacent two sub-pixels 300; at least two sub-panels 200 are arranged side by side on one side of the transparent substrate 100, and a joint seam 210 is arranged between two adjacent sub-panels 200. The transparent substrate 100 is located on the light-emitting side of the sub-panel 200, and the orthographic projection of the first light shielding portion 110 on the transparent substrate 100 at least partially overlaps with the orthographic projection of the joint seam 210 on the transparent substrate 100, and the orthographic projection of the second light shielding portion 120 on the transparent substrate 100 at least partially overlaps with the orthographic projection of at least part of the gap 320 on the transparent substrate 100.

[0044] In this embodiment, the sub-panels 200 are arranged side by side, and a joint seam 210 is generated between adjacent sub-panels 200. The transparent substrate 100 is arranged on the light-emitting side of the sub-panel 200, and a first light shielding portion 110 is arranged on the transparent substrate 100. The orthographic projection of the first light shielding portion 110 on the transparent substrate 100 overlaps with the orthographic projection of the joint seam 210 on the transparent substrate 100 at least partially. The first light shielding portion 110 can be used to shield the joint seam 210 between the sub-panels 200, reducing the influence of the inconsistent size of the joint seam 210 on the display effect of the display panel. At the same time, in the dark mode, the influence of the inconsistent joint seam 210 on the appearance of the display panel can also be reduced. The orthographic projection of the second light shielding portion 120 on the transparent substrate 100 overlaps at least partially with the orthographic projection of the gap 320 between the sub-pixels 300 on the transparent substrate 100. The second light shielding portion 120 and the sub-pixel 300 are staggered to avoid affecting the light output effect. The second light shielding portion 120 can reduce the external light entering the sub-panel 200 to form reflected light, thereby improving the display effect. Optionally, the sub-pixel 300 may include a red sub-pixel, a green sub-pixel, and a blue sub-pixel. Since the gap 320 is located between each sub-pixel 300, the orthographic projection of the second light shielding portion 120 on the transparent substrate 100 overlaps at least partially with the orthographic projection of at least part of the gap 320 on the transparent substrate 100, thereby preventing the red sub-pixel, the green sub-pixel, and the blue sub-pixel from crosstalking with each other, thereby improving the display effect of the display panel. Fabricating the second light-shielding portion 120 on the light-transmitting substrate 100 can replace the black matrix layer fabricated in the structural layer of the sub-panel 200 in the related art, and directly fabricating the second light-shielding portion 120 on the light-transmitting substrate 100 can greatly reduce the complexity of the process compared to fabricating the black matrix layer in the structural layer of the sub-panel 200, which is beneficial to saving the manufacturing cost of the display panel and improving the process performance of the display panel.

[0045] like Figure 2 As shown, in some optional embodiments, the first light shielding portion 110 and the second light shielding portion 120 are disposed on the side of the transparent substrate 100 facing the sub-panel 200 .

[0046] In these optional embodiments, the second light shielding portion 120 is arranged on the side of the transparent substrate 100 facing the sub-panel 200, reducing the distance between the second light shielding portion 120 and the sub-pixel 300. It can be understood that the farther the second light shielding portion 120 is from the sub-panel 200, the larger the gap between the second light shielding portion 120 and the sub-panel 120, and the reflected light at a large angle is easily emitted from the gap, so it is necessary to increase the width of the second light shielding portion 120 to block the reflected light at a large angle. The closer the second light shielding portion 120 is to the sub-panel, the smaller the gap between the second light shielding portion 120 and the sub-panel 120, and the more difficult it is for the reflected light to be emitted from the gap. The second light shielding portion 120 is arranged on the side of the transparent substrate 100 facing the sub-panel 200, reducing the distance between the second light shielding portion 120 and the sub-pixel 300, thereby reducing the width of the second light shielding portion 120, increasing the light output rate of the sub-pixel 300, and improving the display effect. The first light shielding portion 110 and the second light shielding portion 120 are disposed on the same side of the light-transmissive substrate 100 , which can improve the consistency of the appearance of the display panel and simplify the manufacturing process.

[0047] Optional, such as Figure 2 As shown, the second light shielding portion 120 is disposed at the same layer as the first light shielding portion 110 .

[0048] Since the gap 320 between the joint seam 210 and the sub-pixel 300 is projected at different positions on the transparent substrate 100, the first light shielding portion 110 and the second light shielding portion 120 are at different positions on the transparent substrate 100, no interference will be generated during the preparation process, and the same layer arrangement can reduce the thickness of the display panel. The first light shielding portion 110 and the second light shielding portion 120 can be made of the same light shielding material and can be formed synchronously by coating or photolithography process, which is conducive to reducing production processes and improving production efficiency.

[0049] Optional, such as Figure 2 As shown, the width of the second light shielding portion 120 is not greater than that of the first light shielding portion 110 .

[0050] Since the width of the joint seam 210 is larger than the width of the gap 320 between the sub-pixels 300 , the width of the second shading portion 120 is set to be no greater than the width of the first shading portion 110 to reduce the overall area of ​​the second shading portion 120 and improve the light extraction rate of the sub-panel 200 .

[0051] Optionally, the sub-panel 200 includes a plurality of sub-pixels 300 , the plurality of sub-pixels 300 are arranged in an array, and the second light shielding portion 120 is a grid structure.

[0052] The sub-pixels 300 are arranged in an array, and the gaps 320 of the sub-pixels 300 are also arranged in an array, and the second light shielding portion 120 is arranged corresponding to the gaps 320, and the second light shielding portion 120 is a grid structure. The grid structure can be a square grid or a grid of other shapes, which can be adapted to the shape of the gaps 320.

[0053] In an embodiment of the present application, the light-transmitting substrate 100 is on the light-emitting side of the sub-panel 200, and the circuit board of the sub-panel 200 can be directly bonded to the non-light-emitting side of the sub-panel. The binding process is not affected by the light-transmitting substrate 100. The display panel can be arranged in an array of multiple sub-panels 200 without being limited by the number of spliced ​​panels, rows or columns, thereby making the size of the display panel larger.

[0054] like Figure 3 As shown, in some optional embodiments, the display panel includes a plurality of sub-panels 200 , which are arranged in an array on one side of the light-transmitting substrate 100 , and the first light-shielding portion 110 is a grid-like structure.

[0055] In these optional embodiments, multiple sub-panels 200 are arranged in an array. In the display panel of the present application, the arrangement of the sub-panels 200 is not limited by the number of splicing, the number of rows or the number of columns, so that a display panel of a larger size can be produced. The splicing seams 210 between each sub-panel 200 form a grid structure, and the first light shielding portion 110 is a grid structure corresponding to the splicing seams 210, so that the first light shielding portion 110 shields the splicing seams 210, thereby improving the display effect of the display panel.

[0056] Optional, such as Figure 1 As shown, an optical adhesive layer 700 is provided between the sub-panel 200 and the light-transmitting substrate 100. Each sub-panel 200 is bonded to one side of the light-transmitting substrate 100 through the optical adhesive layer 700 to form a spliced ​​display panel. The optical adhesive layer 700 can also improve light transmittance, and the optical adhesive layer 700 can include natural resin or synthetic resin material, thereby improving the display effect of each sub-panel 200.

[0057] Optional, such as Figure 4 As shown, N sub-panels 200 are arranged side by side along the length direction X of the transparent substrate 100, and M sub-panels 200 are arranged side by side along the width direction Y of the transparent substrate 100, where M is greater than 2 and N is greater than 2.

[0058] The transparent substrate 100 can be rectangular, and N sub-panels 200 are arranged side by side along the length direction X of the rectangular structure transparent substrate 100, and M sub-panels 200 are arranged side by side along the width direction Y of the rectangular structure transparent substrate 100, and M and N are both greater than 2, forming a display panel composed of N×M sub-panels 200.

[0059] like Figure 4 and Figure 5 As shown, in some optional embodiments, the first light shielding portion 110 is provided with a first mark 111, and each sub-panel 200 is provided with a second mark 220, and the first mark 111 and the second mark 220 are used for alignment. The first mark 111 is provided on the first light shielding portion 110, and the second mark 220 is provided on the sub-panel 200, and the alignment of the first mark 111 and the second mark 220 is achieved through an image observation device. The image observation device can be a CCD (charge coupled device) camera, and the image observation device achieves the alignment of the transparent substrate 100 and the sub-panel 200 through the first mark 111 and the second mark 220, so that the projection of the first light shielding portion 110 and the joint seam 210 on the transparent substrate 100 at least partially overlaps, and at the same time, the orthographic projection of the second light shielding portion 120 on the transparent substrate 100 and the orthographic projection of at least part of the gap 320 on the transparent substrate 100 at least partially overlap. The first mark 111 and the second mark 220 are provided to improve the alignment accuracy of the light-transmitting substrate 100 and the sub-panel 200 .

[0060] Optionally, the first mark 111 and the second mark 220 are staggered, that is, the first mark 111 and the second mark 220 are staggered in the extension direction of the display panel, and alignment is performed by observing the distance between the first mark 111 and the second mark 220. The extension direction of the display panel may be perpendicular to the thickness direction of the display panel.

[0061] like Figures 4 to 7 As shown, in some optional embodiments, the first light shielding portion 110 is disposed on the side of the transparent substrate 100 facing the sub-panel 200 , and the first mark 111 is disposed on the side of the first light shielding portion 110 facing away from the transparent substrate 100 .

[0062] In these optional embodiments, the first shading portion 110 is arranged on a side close to the sub-panel 200 to reduce the distance between the first shading portion 110 and the splicing seam 210, thereby reducing the width of the first shading portion 110. It can be understood that the farther the first shading portion 110 is from the sub-panel, the larger the gap between the first shading portion 110 and the sub-panel 120, and it is necessary to increase the width of the first shading portion 110 to avoid the splicing seam 210 from showing through the blocking range of the first shading portion 110 at an inclined angle. The closer the first shading portion 110 is to the sub-panel, the smaller the gap between the first shading portion 110 and the sub-panel 120, and the more difficult it is for the splicing seam 210 to show through the blocking range of the first shading portion 110. Therefore, the width of the first shading portion 110 can be set to be the same as the width of the splicing seam 210.

[0063] The second light shielding portion 120 is disposed on the side of the transparent substrate 100 facing the sub-panel 200, reducing the distance between the second light shielding portion 120 and the sub-pixel 300, improving the overall consistency of the appearance of the display panel, and improving the display effect. The first light shielding portion 110 is first made on the transparent substrate 100. After the first light shielding portion 110 is formed, the first mark 111 is etched on the side of the first light shielding portion 110 away from the transparent substrate 100. Since the first light shielding portion 110 is relatively wide, it is easier to etch the first mark 111 on the first light shielding portion 110.

[0064] Optionally, the first mark 111 may be in the shape of a cross.

[0065] Optionally, the first light shielding portion 110 is provided with a plurality of first marks 111 arranged at intervals, and the second mark 220 arranged on each sub-panel 200 corresponds to at least one first mark 111 .

[0066] The sub-panel 200 corresponds to at least one first mark 111, and each sub-panel 200 is provided with a second mark 220 corresponding to the first mark 111. Setting a smaller number of marks can reduce the steps of the etching process. Optionally, a second mark 220 is etched on the sub-panel 200, and the pattern of the second mark 220 can be a cross.

[0067] Optionally, each sub-panel 200 is provided with a plurality of second marks 220 disposed at intervals, and the first light shielding portion 110 is provided with a plurality of first marks 111 disposed at intervals, and the first marks 111 and the second marks 220 are disposed in one-to-one correspondence.

[0068] The first mark 111 and the second mark 220 are set in one-to-one correspondence, and the first mark 111 and the second mark 220 can be set in a staggered manner. The correspondingly set first mark 111 and the second mark 220 are set adjacent to each other so as to facilitate the image observation device to observe and align. A plurality of second marks 220 are set at intervals on each sub-panel 200 to adjust the position of the sub-panel 200 in the length and width direction of the light-transmitting substrate 100, so that the position of the sub-panel 200 is more accurate, the splicing error is reduced, and the probability that the first light shielding part 110 and the splicing seam 210 are misaligned and the first light shielding part 110 cannot cover a part of the splicing seam 210 after the accumulated error increases after setting a plurality of sub-panels 200 is reduced. Alignment is performed by observing the spacing between the first mark 111 and the second mark 220. It can be understood that the first mark 111 is set on the first shading portion 110, and the first shading portion 110 is located at the joint seam 210. The second mark 220 cannot be set at the joint seam 210, so the second mark 220 is set at a position where the first mark 111 is misaligned along the extension direction of the transparent substrate 100.

[0069] In some optional embodiments, the first mark 111 can be set on the side of the first light shielding portion 110 facing the sub-panel 200, and the image processing device observes and aligns the sub-panel 200 on the side away from the transparent substrate 100. The first mark 111 can also be set on the side of the first light shielding portion 110 facing away from the ion panel 200, and the image processing device observes and aligns the side of the transparent substrate 100 facing away from the ion panel 200.

[0070] In the related art, when external light passes through the substrate and is emitted to the sub-panel, it will form reflected light on the components in the sub-panel. The reflected light is mixed with the light emitted by the sub-pixel and affects the display effect.

[0071] In some optional embodiments, the orthographic projection of the second mark 220 on the light-transmitting substrate 100 at least partially overlaps with the orthographic projection of at least part of the gap 320 on the light-transmitting substrate 100 .

[0072] In these optional embodiments, the second mark 220 can be formed by etching and have a pattern, which will affect the light output of the sub-panel. The orthographic projection of the second mark 220 on the transparent substrate 100 is at least partially overlapped with the orthographic projection of at least part of the gap 320 on the transparent substrate 100, thereby reducing the impact on the light emission of the sub-pixel 300.

[0073] Optional, such as Figure 1 and Figure 8 As shown, a metal trace 330 is disposed at the position of the gap 320 , and the orthographic projection of the second light shielding portion 120 on the transparent substrate 100 at least partially overlaps with the orthographic projection of the metal trace 330 on the transparent substrate 100 .

[0074] The metal wiring 330 is used to drive the sub-pixel 300 to emit light or provide a data signal. When external light passes through the transparent substrate 100 and is emitted to the sub-panel 200, the metal wiring 330 includes a metal material. The reflectivity of light on the metal material is high, and the reflected light mixed with the light emitted by the light-emitting unit will affect the display effect. The orthographic projection of the second light shielding portion 120 on the transparent substrate 100 and the orthographic projection of the metal wiring 330 on the transparent substrate 100 at least partially overlap, thereby reducing the impact of the reflected light of the metal wiring 330 on the display effect.

[0075] In some optional embodiments, the first light shielding portion 110 and the second light shielding portion 120 include conductive materials.

[0076] The first light shielding portion 110 and the second light shielding portion 120 are at least partially in contact with the sub-panel 200 . The sub-panel 200 generates static electricity during use. The first light shielding portion 110 and the second light shielding portion 120 include conductive materials to release the static electricity on the sub-panel 200 .

[0077] Optionally, the materials of the first light shielding portion 110 and the second light shielding portion 120 include conductive particles.

[0078] The first light shielding portion 110 and the second light shielding portion 120 include a light shielding material. Conductive particles are mixed with the light shielding material and then coated or photolithographically formed on one side of the transparent substrate 100. At this time, the first light shielding portion 110 and the second light shielding portion 120 have a conductive function.

[0079] like Figure 1 As shown, in some optional embodiments, the sub-panel 200 also includes a driving circuit layer 400 and a substrate 500 which are stacked in sequence in a direction away from the light-transmitting substrate 100, and the driving circuit layer 400 includes a circuit board 410, and at least a portion of the circuit board 410 is bound to the side of the substrate 500 away from the driving circuit layer 400.

[0080] In these optional embodiments, the driving circuit layer 400 is used to drive the sub-pixel 300 to emit light, and the driving circuit includes a transistor and a storage capacitor. The transistor includes a semiconductor, a gate, a source and a drain. The storage capacitor includes a first plate and a second plate. The substrate 500 is arranged on the side of the driving circuit layer 400 away from the light-emitting side, and the circuit board 410 of the driving circuit layer 400 is bound to the side of the substrate 500 away from the driving circuit layer 400, thereby reducing the occupation of the circuit board 410 on the front space of the display panel, which is conducive to reducing the frame size of the display panel and improving the screen-to-body ratio. Each sub-panel 200 includes a substrate 500, and the circuit board 410 of each sub-panel 200 is bound to the back of each substrate 500, so that multiple sub-panels 200 can be arranged in an array. Compared with the related art in which a transparent substrate 100 is arranged on the back of multiple sub-panels 200, the arrangement of multiple sub-panels 200 in this embodiment can be free from the number of splicing, the number of rows or the number of columns, so that a larger display panel can be made.

[0081] like Figure 1 As shown, in some optional embodiments, the sub-panel 200 further includes a heat dissipation layer 600 , and the heat dissipation layer 600 is disposed between the driving circuit layer 400 and the substrate 500 .

[0082] In these optional embodiments, the heat dissipation layer 600 is used to dissipate heat for the driving circuit layer 400 and the light-emitting layer. The heat dissipation layer 600 may include a material with high thermal conductivity, such as a metal material. Optionally, the material of the heat dissipation layer 600 includes aluminum. In the related art, the glass light-transmitting substrate is arranged on the backlight side of the sub-panel 200, and thus the heat dissipation layer 600 cannot be arranged. In this embodiment, the light-transmitting substrate 100 is arranged on the light-emitting side of the sub-panel 200, and the heat dissipation layer 600 can be arranged on the side of the sub-panel 200 away from the light-transmitting substrate 100.

[0083] like Figure 4 , Figure 6 and Figure 7 As shown, in some optional embodiments, at least two sub-panels 200 are arranged side by side to form a sub-panel group 800, and the orthographic projection of the first shading portion 110 on the transparent substrate 100 at least partially overlaps with the orthographic projection of the edge of the sub-panel group 800 in the extending direction on the transparent substrate 100.

[0084] In some optional embodiments, the sub-panels 200 are arranged side by side to form a sub-panel group 800, and the display panel may include only one sub-panel group 800, and no other sub-panels 200 are arranged on the edge of the sub-panel group 800, that is, there is no joint seam 210 on the edge of this sub-panel group 800, and the orthographic projection of the first light shielding portion 110 on the transparent substrate 100 and the orthographic projection of the edge of the sub-panel group 800 in the extension direction on the transparent substrate 100 at least partially overlap, and the first light shielding portion 110 shields the edge of the sub-panel group 800 to improve the overall consistency of the display panel. Optionally, the extension direction of the sub-panel group 800 is perpendicular to the thickness direction of the display panel.

[0085] A second aspect of the present application provides a display device, comprising the display panel in any one of the embodiments of the first aspect.

[0086] In the display device, the sub-panels 200 of the display panel are arranged side by side, and a joint seam 210 is generated between adjacent sub-panels 200. The transparent substrate 100 is arranged on the light-emitting side of the sub-panel 200, and a first shading portion 110 is arranged on the transparent substrate 100. The orthographic projection of the first shading portion 110 on the transparent substrate 100 and the orthographic projection of the joint seam 210 on the transparent substrate 100 at least partially overlap. The first shading portion 110 can be used to block the joint seam 210 between the sub-panels 200, thereby reducing the influence of the inconsistent size of the joint seam 210 on the display effect of the display panel in the bright mode, and at the same time reducing the influence of the inconsistent size of the joint seam 210 on the appearance of the display panel in the dark mode. The orthographic projection of the second light shielding portion 120 on the transparent substrate 100 overlaps at least partially with the orthographic projection of the gap 320 between the sub-pixels 300 on the transparent substrate 100. The second light shielding portion 120 and the sub-pixels 300 are staggered to avoid affecting the light output effect. The second light shielding portion 120 can reduce the external light entering the sub-panel 200 to form reflected light, thereby improving the display effect. The orthographic projection of the second light shielding portion 120 on the transparent substrate 100 overlaps at least partially with the orthographic projection of at least part of the gap 320 on the transparent substrate 100, thereby preventing the sub-pixels 300 from crosstalking with each other, thereby improving the display effect of the display panel. The production of the second light shielding portion 120 on the transparent substrate 100 can replace the black matrix layer produced in the structural layer of the sub-panel 200 in the related art, and the complexity of the process of directly producing the second light shielding portion 120 on the transparent substrate 100 is greatly reduced compared to producing the black matrix layer in the structural layer of the sub-panel 200, which is conducive to saving the manufacturing cost of the display panel and improving the process performance of the display panel. The display device in the embodiments of the present application includes but is not limited to mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, consoles, and other devices with display functions.

[0087] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A display panel, characterized in that: include: A light-transmitting substrate, on which a first light-shielding portion and a second light-shielding portion are disposed; A sub-panel, wherein the sub-panel comprises a plurality of sub-pixels, and a gap exists between at least two adjacent sub-pixels; at least two sub-panels are arranged side by side on one side of the light-transmitting substrate, and a joint seam is formed between two adjacent sub-panels; In which, the transparent substrate is located on the light-emitting side of the sub-panel, the orthographic projection of the first shading portion on the transparent substrate at least partially overlaps with the orthographic projection of the joint seam on the transparent substrate, and the orthographic projection of the second shading portion on the transparent substrate at least partially overlaps with the orthographic projection of at least part of the gap on the transparent substrate.

2. The display panel according to claim 1, characterized in that: The first light shielding portion and the second light shielding portion are disposed on a side of the light-transmissive substrate facing the sub-panel.

3. The display panel according to claim 1, characterized in that: The second light shielding portion is arranged on the same layer as the first light shielding portion.

4. The display panel according to claim 1, characterized in that: The width of the second light shielding portion is not greater than that of the first light shielding portion.

5. The display panel according to claim 1, characterized in that: The sub-panel includes a plurality of sub-pixels, the plurality of sub-pixels are arranged in an array, and the second light shielding portion is a grid structure.

6. The display panel according to claim 1, characterized in that: The plurality of sub-panels are arranged in an array on one side of the light-transmitting substrate, and the first light-shielding portion is a grid-like structure.

7. The display panel according to claim 6, characterized in that: An optical adhesive layer is arranged between the sub-panel and the light-transmitting substrate.

8. The display panel according to claim 6, characterized in that: N sub-panels are arranged side by side along the length direction of the light-transmitting substrate, and M sub-panels are arranged side by side along the width direction of the light-transmitting substrate, wherein M is greater than 2 and N is greater than 2.

9. The display panel according to claim 1, characterized in that: A first mark is provided on the first light shielding portion, and a second mark is provided on each of the sub-panels. The first mark and the second mark are used for alignment.

10. The display panel according to claim 9, characterized in that: The first light shielding portion is disposed on a side of the light-transmitting substrate facing the sub-panel, and the first mark is disposed on a side of the first light shielding portion facing away from the light-transmitting substrate.

11. The display panel according to claim 9, characterized in that: The first light shielding portion is provided with a plurality of first marks arranged at intervals, and the second mark arranged on each of the sub-panels corresponds to at least one of the first marks.

12. The display panel according to claim 9, characterized in that: Each of the sub-panels is provided with a plurality of the second marks arranged at intervals, the first light shielding portion is provided with a plurality of the first marks arranged at intervals, and the first marks and the second marks are arranged in a one-to-one correspondence.

13. The display panel according to claim 9, characterized in that: The first mark and the second mark are staggered along the extension direction of the light-transmitting substrate.

14. The display panel according to claim 9, characterized in that: An orthographic projection of the second mark on the light-transmitting substrate at least partially overlaps with an orthographic projection of at least part of the gap on the light-transmitting substrate.

15. The display panel according to claim 14, characterized in that: A metal trace is disposed at the gap position, and an orthographic projection of the second light shielding portion on the light-transmitting substrate at least partially overlaps with an orthographic projection of the metal trace on the light-transmitting substrate.

16. The display panel according to claim 1, characterized in that: The first light shielding portion and the second light shielding portion include a conductive material.

17. The display panel according to claim 16, characterized in that: The first light shielding portion and the second light shielding portion are formed of materials including conductive particles.

18. The display panel according to claim 1, characterized in that: The sub-panel further comprises a driving circuit layer and a substrate which are sequentially stacked in a direction away from the light-transmitting substrate. The driving circuit layer comprises a circuit board, and at least part of the circuit board is bound to a side of the substrate away from the driving circuit layer.

19. The display panel according to claim 18, characterized in that: The sub-panel further includes a heat dissipation layer, and the heat dissipation layer is arranged between the driving circuit layer and the substrate.

20. The display panel according to claim 19, characterized in that: The material of the heat dissipation layer includes aluminum.

21. The display panel according to claim 1, characterized in that: At least two of the sub-panels are arranged side by side to form a sub-panel group, and the orthographic projection of the first light shielding portion on the light-transmitting substrate at least partially overlaps with the orthographic projection of the edge of the sub-panel group in the extending direction on the light-transmitting substrate.

22. A display device, characterized in that: A display panel comprising any one of claims 1-21.

Images