Display panel

Abstract

Embodiments of the present application provide a display panel. The display panel comprises a light emitting device arranged on a silicon-based circuit substrate, the light emitting device comprising a first light emitting device, a second light emitting device and a third light emitting device, and a prism group comprising at least a first direction-changing prism, a second direction-changing prism and a converging prism. Different prisms are arranged on light emitting devices of different colors, and the first direction-changing prism and the second direction-changing prism reflect the light emitted by the corresponding light emitting devices to the converging prism to form display light. In the embodiments of the present application, by arranging the prism group, the light is affected by different prisms in the prism group, and then the light in different pixel areas is collected on the light emitting surface of the prism group corresponding to the same light emitting device, and then emitted, thereby effectively improving the concentration of light at the center of light emission, reducing the dispersion of the panel, and improving the display effect of the device.

Description

TECHNICAL FIELD

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

[0002] With the continuous development of display panel preparation technology, people have put forward higher requirements on the quality and display performance of display panels.

[0003] In order to further improve the light emitting performance of the display panel, the silicon-based (Si) circuit substrate material is currently used as a substrate and further forms a Si-uLED light emitting device thereon. Compared with traditional light emitting devices, Si-uLED has the advantages of smaller size and higher brightness, and is concerned. However, in the prior art, when preparing and forming the above-mentioned light emitting device, due to the small size of the Si-uLED, when multiple light emitting devices of different colors are arranged horizontally on the silicon-based circuit substrate and work normally, the light emitted by the light emitting devices of different colors in the horizontal direction is more divergent, and the convergence effect is not ideal, which cannot converge and concentrate the light in the same area, thereby causing the light emitting device to easily appear color dispersion and even serious color separation of graphics and text when working normally, which is not conducive to further improving the display effect of the panel.

[0004] In summary, in the prior art, when preparing and forming a silicon-based display panel light emitting device, the light in the silicon-based light emitting device is severely divergent, cannot be converged and concentrated in the same area, and is prone to display problems such as color dispersion. SUMMARY

[0005] The display panel provided by the embodiments of the present application can effectively improve the problem that the light is prone to color dispersion and the display effect is not ideal when the existing display panel emits light.

[0006] To solve the above technical problems, the first aspect of the embodiments of the present application provides a display panel, which comprises light emitting devices arranged in an array on a silicon-based circuit board, the light emitting devices comprising a first light emitting device arranged in a first sub-pixel region, a second light emitting device arranged in a second sub-pixel region, and a third light emitting device arranged in a third sub-pixel region.

[0007] A prism group is arranged on the light emitting side of the light emitting devices arranged in different sub-pixel regions.

[0008] The prism group comprises a first deflection prism arranged in the first sub-pixel region, a second deflection prism arranged in the second sub-pixel region and opposite to the first deflection prism, and an aggregation prism arranged in the third sub-pixel region.

[0009] Furthermore, the first and second directional prisms reflect the emitted light from the corresponding light-emitting devices to the converging prism, where it is emitted to form display light.

[0010] According to an embodiment of the present invention, the first light-emitting device is provided with at least a first color light-emitting layer electrically connected to the silicon-based circuit substrate;

[0011] The second light-emitting device has at least one second color light-emitting layer electrically connected to the silicon-based circuit substrate;

[0012] The third light-emitting device is provided with at least one third color light-emitting device that is electrically connected to the silicon-based circuit board;

[0013] The first directional prism includes a first reflecting surface, the second directional prism includes a second reflecting surface, and the converging prism includes a first light-emitting surface. At least the light emitted by the first light-emitting device or the second light-emitting device is reflected by the first reflecting surface or the second reflecting surface, converges onto the first light-emitting surface, and is emitted.

[0014] According to one embodiment of the present invention, the first sub-pixel region and the second sub-pixel region are disposed in a first direction and on the same side of the third sub-pixel region.

[0015] Wherein, the sum of the lengths of the first sub-pixel region and the second sub-pixel region in the first direction is less than or equal to the length of the third sub-pixel region in the first direction.

[0016] According to one embodiment of the present invention, the first reversing prism and the second reversing prism have the same structure, and the tilt direction of the first reflecting surface of the first reversing prism is the same as the tilt direction of the second reflecting surface of the second reversing prism.

[0017] According to an embodiment of the present invention, the first light-emitting device, the second light-emitting device, and the third light-emitting device all include a first color light-emitting layer, a second color light-emitting layer, and a third color light-emitting layer disposed in the light-emitting direction;

[0018] In each light-emitting device, of the first color light-emitting layer, the second color light-emitting layer, and the third color light-emitting layer, one light-emitting layer is electrically connected to the silicon-based circuit substrate through an electrode, while the other two light-emitting layers are insulated from the silicon-based circuit substrate.

[0019] According to one embodiment of the present invention, the display panel further includes a dielectric layer and a bonding layer disposed between two adjacent light-emitting layers;

[0020] In each of the light-emitting devices, a light-emitting layer is electrically connected to the silicon-based circuit substrate, and the prism group is disposed within the dielectric layer, wherein the refractive index of the prism group is less than the refractive index of the dielectric layer.

[0021] According to one embodiment of the present invention, the first sub-pixel region and the second sub-pixel region are arranged side by side and respectively located on opposite sides of the third sub-pixel region.

[0022] According to one embodiment of the present invention, the first light-emitting surface of the polymer prism includes a first sub-light-emitting surface and a second sub-light-emitting surface;

[0023] Specifically, light rays within the first sub-pixel region are reflected by the first reflective surface onto the first sub-emitting surface and then emitted, while light rays within the second sub-pixel region are reflected by the second reflective surface onto the second sub-emitting surface and then emitted.

[0024] According to one embodiment of the present invention, the first sub-pixel region of the light-emitting device is arranged side by side with the second sub-pixel of the light-emitting device, and is located on the same side of the third sub-pixel region of the light-emitting device.

[0025] According to one embodiment of the present invention, the first reflecting surface of the first reversing prism, the second reflecting surface of the second reversing prism, and the first light-emitting surface of the converging prism have the same tilt angle.

[0026] The beneficial effects of this invention's embodiments: Compared to the prior art, this application provides a display panel. The display panel includes light-emitting devices disposed on a silicon-based circuit substrate. These light-emitting devices include a first light-emitting device, a second light-emitting device, and a third light-emitting device. A prism group includes at least a first directional prism, a second directional prism, and a converging prism. Different prisms are correspondingly disposed on light-emitting devices of different colors, and the first and second directional prisms reflect the emitted light from each corresponding light-emitting device to the converging prism, where it is emitted to form display light. In this application embodiment, by setting a prism group, different prisms within the prism group act on the light, thereby converging the light from different pixel areas onto the light-emitting surface of the prism group corresponding to the same light-emitting device, and then emitting it. This effectively improves the concentration of light at the light-emitting center, reduces panel dispersion, and improves the display effect of the device. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the film layer structure of the horizontally stacked display panel provided in the embodiments of this application;

[0029] Figure 2 Examples of embodiments in this application Figure 1 Simplified diagram;

[0030] Figure 3 This is a schematic diagram of the planar arrangement of the pixel areas of the first type of display panel provided in the embodiments of this application;

[0031] Figure 4 This is a schematic diagram of light propagation in the display panel provided in the embodiments of this application;

[0032] Figure 5 This is another schematic diagram of light propagation in the display panel provided in the embodiments of this application;

[0033] Figure 6 for Figure 4 , Figure 5 A schematic diagram of the planar arrangement of each pixel area on the central display panel;

[0034] Figure 7 This is a schematic diagram of a first structure of the first and second directional prisms provided in the embodiments of this application.

[0035] Figure 8 This is a schematic diagram of the structure of the polymer prism provided in the embodiments of this application;

[0036] Figure 9 A schematic diagram of the layout of another display panel provided in an embodiment of this application;

[0037] Figure 10 Examples of embodiments in this application Figure 9 A schematic diagram of the light effect corresponding to the arrangement structure;

[0038] Figure 11 Provided in the embodiments of this application Figure 10 The prism structure in it;

[0039] Figure 12 This is a schematic diagram of the layout structure of another display panel provided in the embodiments of this application;

[0040] Figure 13 for Figure 12 The diagrams provided illustrate the light effects corresponding to the arrangement methods.

[0041] Figure 14 This is a schematic diagram of the structure of each prism provided in the embodiments of this application;

[0042] Figures 15-18 This is a schematic diagram of the fabrication process of the prism assembly provided in the embodiments of this application. Detailed Implementation

[0043] In the following detailed description, only certain embodiments of the invention are shown and described by way of simple illustration. As will be understood by those skilled in the art, the embodiments described herein can be modified in various ways without departing from the spirit or scope of the invention.

[0044] In the accompanying drawings, the thickness of layers, films, plates, regions, etc., may be exaggerated for clarity, better understanding, and ease of description. It should be understood that when an element such as a layer, film, region, or substrate is referred to as "located on another element," it may be located directly on the other element or there may be inserted elements.

[0045] Furthermore, unless explicitly stated otherwise, the word "including" and its variations such as "comprising" or "containing" will be understood to imply the inclusion of the discussed element, but not necessarily the exclusion of other elements. Further, in the specification, the phrase "on" means placed above or below the object part, and not necessarily on the upper side of the object part based on the direction of gravity.

[0046] It will be understood that although the terms “first,” “second,” etc., may be used in this document to describe various components, these components should not be limited by these terms. These terms are used only to distinguish one component from another.

[0047] As used in this article, the singular forms “one,” “a,” and “the” are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0048] It will also be understood that the terms “comprising” and / or “including” as used herein specify the presence of the said feature or component, but do not exclude the presence or addition of one or more other features or components.

[0049] It will be understood that when a layer, region, or component is referred to as being "formed on" another layer, region, or component, it can be formed directly or indirectly on that other layer, region, or component. For example, intermediate layers, regions, or components may exist.

[0050] In the following examples, the x-axis, y-axis, and z-axis are not limited to the three axes of a Cartesian coordinate system and can be interpreted in a broader sense. For example, the x-axis, y-axis, and z-axis can be perpendicular to each other, or they can represent different directions that are not perpendicular to each other.

[0051] This application provides a display panel, which is a silicon-based full-color display panel with a horizontally stacked structure. Optionally, the film structure provided in this application can also be applied to general display panels, which will not be elaborated here. In this application, by setting a prism group, light from different pixel areas is effectively gathered onto the same light-emitting surface in the same pixel and emitted, thereby effectively reducing the panel dispersion problem and improving the display effect of the device.

[0052] like Figure 1 As shown, Figure 1 This is a schematic diagram of the film layer structure of the horizontally stacked display panel provided in the embodiments of this application. The display panel includes multiple pixel regions, which can be arranged in an array to form multiple light-emitting regions. Among them, pixel region 11 includes a first sub-pixel region 201, a second sub-pixel region 202, and a third sub-pixel region 203. In the following embodiments, the above three different sub-pixel regions are used as examples for illustration.

[0053] Specifically, the display panel includes a substrate 101 and a plurality of light-emitting devices disposed on the substrate 101. Each light-emitting device corresponds to a sub-pixel region. In this embodiment, the substrate 101 is a silicon-based circuit substrate. By directly disposing of different light-emitting devices on the silicon-based circuit substrate, a silicon-based display panel is formed, thereby improving the resolution and display effect of the light-emitting LEDs. Furthermore, when multiple light-emitting devices are disposed, the light-emitting devices may include a first light-emitting device, a second light-emitting device, and a third light-emitting device. The first light-emitting device is disposed in the first sub-pixel region 201, the second light-emitting device is disposed in the second sub-pixel region 202, and the third light-emitting device is disposed in the third sub-pixel region 203. In the following embodiments, the above correspondence is followed, and will not be repeated here.

[0054] Specifically, during the fabrication of the aforementioned silicon-based circuit substrate, multiple control transistors are also formed within the substrate (not specifically shown in the figure). These control transistors provide corresponding control signals to the light-emitting device, thereby enabling the panel to emit light and display normally. The fabrication process for this silicon-based circuit substrate can follow the general procedures for silicon-based circuit substrate fabrication and will not be elaborated further.

[0055] Furthermore, in this embodiment, within each sub-pixel region, the light-emitting device of the display panel further includes stacked tri-color light-emitting layers. Specifically, in the following embodiments, when setting the tri-color light-emitting layers, a first LED stack, a second LED stack, and a third LED stack are used as examples for explanation. Light of different colors is emitted by the LED stacks, avoiding other light-emitting layers. Each LED stack is set to a different color, and a bonding layer is provided between adjacent light-emitting layers. Furthermore, the display panel also includes a prism group disposed above the stacks, located on the light-emitting side of continuous, different-color light-emitting devices. In the following embodiments, the first LED stack is set as a first-color light-emitting layer, the second LED stack as a second-color light-emitting layer, and the third LED stack as a third-color light-emitting layer are used as examples for explanation.

[0056] In the following embodiments, a first electrode layer 300, a first LED stack 301, a first bonding layer 302, a second LED stack 303, a second bonding layer 304, and a third LED stack 305 are respectively provided in the first sub-pixel region 201, the second sub-pixel region 202, and the third sub-pixel region 203.

[0057] Specifically, during setup, the first electrode layer 300 in each sub-pixel region can be electrically disposed on the substrate simultaneously, and the first LED stack 301 is disposed on the first electrode layer 300, the first bonding layer 302 is disposed on the first LED stack 301 and completely covers the first LED stack 301, the second LED stack 303 is disposed on the first bonding layer 302, and the third LED stack 305 is disposed on the second bonding layer 304.

[0058] In this embodiment of the application, the first light-emitting device, the second light-emitting device and the third light-emitting device each include a first color light-emitting layer, a second color light-emitting layer and a third color light-emitting layer stacked in the light-emitting direction;

[0059] In each light-emitting device, the light-emitting layer of any one color is electrically connected to the silicon-based circuit substrate through electrodes, while the light-emitting layers of other colors are insulated from the silicon-based circuit substrate. That is, in the areas where the different LED stacks and corresponding sub-pixel areas are set, only one LED stack in each sub-pixel area can work normally and emit light, while the other two color light-emitting layers are insulated from the silicon-based circuit substrate and do not emit light, thereby forming a horizontally stacked full-color silicon-based display panel.

[0060] Specifically, a second electrode layer 401 is provided in the third sub-pixel region 203. The second electrode 401 can be disposed on one side of the first LED stack and electrically connected to the first LED stack. In this way, the first electrode layer 300 and the second electrode layer 401 form a working circuit with the first LED stack 301, and ensure the operation and light emission display of the first LED stack.

[0061] Within the first sub-pixel region 201, a third electrode layer 402 and a fourth electrode layer 403 are also provided. Specifically, the third electrode layer 402 can be respectively disposed on both sides of the second LED stack 303, such as being disposed on the left and right sides of the second LED stack 303, and both being electrically connected to the second LED stack 303. In this way, when the second LED stack 303 is working normally, control signals are applied to the second LED stack 303 through the third electrode layer 402 and the fourth electrode layer 403 to ensure its normal operation.

[0062] Furthermore, a fifth electrode layer 404 and a sixth electrode layer 405 are also provided within the second sub-pixel region 202. The fifth electrode layer 404 and the sixth electrode layer 405 can be correspondingly disposed on opposite sides of the third LED stack 305. For example, the fifth electrode layer 404 can be disposed above the third LED stack 305, and the sixth electrode layer 405 can be disposed at a reserved position on the right side of the third LED stack. In this way, control signals are provided to the third LED stack 305 through the fifth electrode layer 404 and the sixth electrode layer 405, ensuring the light emission and normal operation of the third LED stack.

[0063] In this embodiment, only one LED stack is provided with electrodes in each sub-pixel region. Therefore, when the panel is working normally, only one LED stack in each sub-pixel region can work normally and emit light, thus visually forming the horizontally stacked full-color display panel of this embodiment. In the following embodiments, in the first sub-pixel region, the first LED stack 301 can be a green light-emitting layer, i.e., the first color light-emitting layer, corresponding to the green sub-pixel; in the second sub-pixel region, the second LED stack 303 can be a blue light-emitting layer, i.e., the second color light-emitting layer, corresponding to the blue sub-pixel; and in the third sub-pixel region, the third LED stack 305 can be set as a red light-emitting layer, i.e., the third color light-emitting layer, corresponding to the red sub-pixel. Optionally, the colors of the LED stacks in the above-mentioned different sub-pixel regions can be set as needed to ensure that each sub-pixel region emits only one color of light in that pixel region. The colors in the above-mentioned different sub-pixel regions are only examples and can be changed as needed, but their light-emitting principles and effects are the same, and will not be described again here.

[0064] Optionally, to simplify the manufacturing process, LED stacks of the same color in different sub-pixel regions can be set on the same layer during setup, thereby reducing production costs.

[0065] In this embodiment of the application, when fabricating different LED stacked structures, the first LED stack, the second LED stack, and the third LED stack each include a first conductive semiconductor layer, a second conductive semiconductor layer, and an active layer disposed between the first conductive semiconductor layer and the second conductive semiconductor layer, and the active layer may have a multi-quantum well structure. In terms of configuration, it can be configured according to a conventional full-color LED stacked structure; this is merely an example and will not be elaborated further.

[0066] like Figure 2 As shown, Figure 2 Examples of embodiments in this application Figure 1 Further, in this embodiment of the application, the display panel also includes a prism group 50, wherein the prism group 50 is disposed on the outermost LED stack, such as above the third LED stack 305. In this way, light emitted from any LED stack will pass through and be acted upon by the prism group 50.

[0067] Combination Figure 1 Specifically, the prism group 50 includes a first directional prism 501 disposed in the first sub-pixel region 201, a second directional prism 502 disposed in the second sub-pixel region 202, and a converging prism 503 disposed in the third sub-pixel region 203. When setting up the prism group, a dielectric layer 504 can be first disposed on the third LED stack, and then the prism group 50 can be correspondingly disposed within the dielectric layer 504 and fixed. Optionally, the thickness of the different prisms can be the same in the light emission direction, thereby ensuring the effective light transmission of different prisms.

[0068] See details Figure 2 As shown, the first directional prism 501 includes a first reflecting surface 601, the second directional prism includes a second reflecting surface 602, and the converging prism includes a first light-emitting surface 603. When the panel is working normally, the light emitted by the LED stack in the first sub-pixel area or the second sub-pixel area is reflected by the first reflecting surface or the second reflecting surface, and then converges onto the first light-emitting surface 603 of the converging prism 503, and is emitted from the first light-emitting surface 603. Therefore, in this embodiment, by setting a prism group structure, when light propagates to different prisms in the prism group, the propagation path of the light changes, thereby causing the light from different sub-pixel areas to converge into the same sub-pixel and continue to be emitted from the light-emitting surface of that sub-pixel area. This effectively improves the concentration of light, reduces light divergence, and improves the display effect of the panel.

[0069] In this embodiment, when different prisms are set, the light emanating from the prism corresponds to the light-emitting surface. Light from other sub-pixel areas is collected onto the prism by the corresponding reflective surface. At this time, the prism where the light converges is the prism in this embodiment. The light is then reflected and emitted from the light-emitting surface of the prism. Simultaneously, the first directional prism 501, the second directional prism 502, and the prism 502 are each disposed on a light-emitting device of a different color. The first directional prism 501 and the second directional prism 502 reflect the emitted light from their respective light-emitting devices to the prism 503, where it is emitted to form display light.

[0070] In this embodiment of the application, light emitted from at least the first sub-pixel region or the second sub-pixel region is reflected by the first reflective surface or the second reflective surface, converges onto the first light-emitting surface, and is emitted.

[0071] Specifically, such as Figure 3 As shown, Figure 3 This is a schematic diagram of the planar arrangement of the pixel areas of the first type of display panel provided in this application embodiment. Combined with... Figures 1-2 In the film structure of this application embodiment, when multiple different pixel regions are arranged in the array, the green region corresponding to the first sub-pixel region and the blue sub-pixel corresponding to the second sub-pixel region are arranged in a first direction Y, such as a vertical direction. Simultaneously, the third sub-pixel region and the first or second sub-pixel region are arranged in a second direction X, such as a horizontal direction. Furthermore, the first and second sub-pixel regions are located on the same side of the third sub-pixel region.

[0072] Furthermore, in the first direction Y, the sum of the lengths of the first sub-pixel region and the second sub-pixel region is less than or equal to the length of the third sub-pixel region. This effectively ensures that the first directional prism in the first sub-pixel region and the second directional prism in the second sub-pixel region can reflect the light incident upon them to the light-emitting surface of the converging prism to the maximum extent, thereby improving the light emission and display effect of the panel.

[0073] like Figure 4 , Figure 5 as well as Figure 6 As shown, Figure 4 This is a schematic diagram of light propagation in the display panel provided in the embodiments of this application. Figure 5 This is another schematic diagram of light propagation in the display panel provided in the embodiments of this application.

[0074] Figure 6 for Figure 4 , Figure 5 A schematic diagram of the planar arrangement of each pixel area on the central display panel. Figure 6In this example, the propagation of light within two adjacent pixel regions is used for illustration.

[0075] Specifically, since different prisms are provided on the LED stack in each sub-pixel region, when light D is emitted from the first LED stack in another first sub-pixel region 2011 adjacent to the first sub-pixel region 201, if light D is green, light D, during its outward emission, first passes through the first deflecting prism above the first LED stack. It is reflected on the first reflecting surface 601 of the first deflecting prism, thus changing from a vertical to a horizontal direction and propagating towards one side of the first sub-pixel region 201. During propagation, it directly passes through the converging prism in the propagation path and reaches the first sub-pixel region in the adjacent pixel region, where it is again acted upon by the first reflecting surface 601. At this point, the light path changes again and propagates to the converging prism 503. Specifically, it propagates to the first light-emitting surface 603 of the converging prism 503 and is reflected there. If total internal reflection occurs on the first light-emitting surface, the light is finally emitted from the light-emitting side of the display panel.

[0076] Similarly, for the LED stack in the adjacent second sub-pixel region 2021 within the second sub-pixel region 202, if the corresponding light ray F is blue, its propagation and its effect on the various reflective and emitting surfaces are the same as the effect of the light ray in the first sub-pixel region, and will not be repeated here. Therefore, in this embodiment, by setting a prism group above the LED stack, and having prisms in different sub-pixel regions with different reflective or emitting surfaces, light from other different sub-pixel regions is effectively gathered onto the same emitting surface and ultimately emitted from that surface, effectively improving the light emission effect and light concentration of the panel.

[0077] In this embodiment of the application, in the above-described arrangement structure, the first and second directional prisms are configured with the same structure, such as having the same reflective surface, the same shape, and the same size. Furthermore, the first reflective surface of the first directional prism and the second reflective surface of the second directional prism have the same tilt direction, thereby ensuring the effective interaction of both with light within adjacent pixel regions.

[0078] like Figure 7 As shown, Figure 7This is a schematic diagram of a first structure of the first and second directional prisms provided in this application embodiment. Specifically, both the first and second directional prisms are configured as irregular polyhedral structures, and the converging prism is configured as a triangular prism. Specifically, for this irregular polyhedral structure, a rectangular quadrangular prism A can be cut, for example, from its vertices b, c, d, and f towards the corresponding edges; for example, cutting along vertices b and d towards the midpoints of edges 01 and 02; simultaneously, cutting along vertices c and f towards the midpoints of edges 02 and 03. After cutting, from... Figure 7 The rectangle on the right forms the irregular polyhedral prism shown in the left figure. This irregular polyhedral prism includes six facets, and the largest facet is the first reflecting surface 601 provided in the embodiment of this application.

[0079] Similarly, the structure of the second reversing prism is obtained using the above method, which will not be described in detail here. Specifically, after cutting, the first reflecting surface 601 and the second reflecting surface 602 correspond to... Figure 3 The planes corresponding to the dashed lines in the first and second directional prisms.

[0080] like Figure 8 As shown, Figure 8 This is a schematic diagram of the polymer prism provided in an embodiment of this application. In this embodiment, the polymer prism is configured as a triangular prism. Specifically, when fabricating the polymer prism, refer to... Figure 8 The diagram on the right shows that the quadrangular prism can be directly cut along the opposite diagonal vertices to obtain the polymer prism in this application.

[0081] In a further embodiment of this application, when setting the prism group and the corresponding dielectric layer, the refractive index of the dielectric layer can be greater than the refractive index of the prism group. Thus, when light enters the corresponding prism group with a lower refractive index from the dielectric layer with a higher refractive index, total emission can occur on the first reflecting surface, the second reflecting surface, and the first light-emitting surface, thereby changing the light path. Simultaneously, when setting the aforementioned converging prism, the cross-section of the converging prism is a right-angled structure, and the base surface corresponding to the two right-angled sides is parallel to the LED stack. This ensures that light can pass directly through the right-angled sides, preventing reflection at the right-angled sides.

[0082] like Figure 9 As shown, Figure 9 This is a schematic diagram illustrating the layout of another display panel provided in an embodiment of this application. (In conjunction with...) Figure 3In the structure described in this application embodiment, when arranging the pixel areas of the display panel, the first sub-pixel area 201, the second sub-pixel area 202, and the third sub-pixel area 203 are arranged side by side, and the first sub-pixel area 201 and the second sub-pixel area 202 are both located on the same side of the third sub-pixel, as shown in the figure where the two sub-pixels are located on the right side of the third sub-pixel area 203.

[0083] like Figure 10 As shown, Figure 10 Examples of embodiments in this application Figure 9 A schematic diagram of the light-emitting behavior corresponding to the arrangement structure. Based on the principle and method of light emission from the prism group in the embodiments of this application, in... Figure 9 In the pixel arrangement structure, within each pixel region, the light rays in the first sub-pixel region 201 and the second sub-pixel region 202 are reflected by the reflective surface of the corresponding prism and converge on the light-emitting surface of the prism in the third sub-pixel region 203. After being reflected by the light-emitting surface, they are emitted from the light-emitting side.

[0084] See details Figure 10 In this embodiment, because the positions of the corresponding sub-pixel regions change, the first directional prism 501, the second directional prism 502, and the converging prism 503 can be configured with the same structure when the prism group 50 is set. Optionally, all the different prisms can be configured as triangular prisms. The first directional prism 501 has a first reflecting surface 601, the second directional prism 502 has a second reflecting surface 602, and the converging prism 503 has a first light-emitting surface 603. Thus, light emitted from at least the first or second sub-pixel region is reflected by the first reflecting surface 601 or the second reflecting surface 602, converges onto the first light-emitting surface 603, and is emitted. This increases the light extraction rate corresponding to the third sub-pixel region, prevents chromatic dispersion during display, and improves the display effect of the device.

[0085] At this time, since different prisms are set with the same structure, when different reflective surfaces are set, the tilt direction and angle of the first reflective surface 601 and the second reflective surface 602 can be the same, and the tilt direction and angle are the same as those of the first light-emitting surface 603. Optionally, all three tilt to the left with a tilt angle of 45°. In this way, light can undergo total internal reflection on both the first reflective surface 601 and the second reflective surface 602, and propagate along the second direction X to the first light-emitting surface 603, where it undergoes total internal reflection again.

[0086] like Figure 11 As shown, Figure 11 Provided in the embodiments of this application Figure 10The prism structure in the example. Referring to the above-described prism fabrication process and structure, in this embodiment, the first directional prism, the second directional prism, and the converging prism can all be obtained by cutting a quadrangular prism. For example, cutting along opposite diagonal vertices to form the prism group in this embodiment is not described in detail here.

[0087] Furthermore, such as Figure 12 As shown, Figure 12 This is a schematic diagram of the layout structure of another display panel provided in this application embodiment. In this application embodiment, the arrangement of each sub-pixel in the pixel region can be further changed. Specifically, the first sub-pixel region 201, the second sub-pixel region 202, and the third sub-pixel 203 are arranged side by side, and the first sub-pixel region 201 and the second sub-pixel region 202 are located on opposite sides of the third sub-pixel 203.

[0088] At this time, the light rays in the first sub-pixel region 201 and the second sub-pixel region 202 are reflected by the corresponding reflective surfaces and converge on the light-emitting surface of the prism in the third sub-pixel region, and are emitted from the light-emitting side.

[0089] Specifically, such as Figure 13 As shown, Figure 13 for Figure 12 The diagram shows the light effect corresponding to the arrangement provided. Since the third sub-pixel region 203 is located in the middle, when setting the prism structures of the prism group above each sub-pixel region, the converging prism 503 can be set as an isosceles trapezoidal prism structure. At the same time, the first directional prism 501 and the second directional prism 502 are set as the same prism structure, and are set as right-angled triangular prism structures.

[0090] like Figure 14 As shown, Figure 14 This is a schematic diagram of the structure of each prism provided in the embodiments of this application. Referring to the structural and light-effect diagrams of other prisms in the embodiments of this application, in the process of fabricating the polymer prism 503, a quadrangular prism 84 can be selected. Then, two cutting points are selected from each of the opposite first side 85 and second side 86 on the upper surface of the quadrangular prism 84, and cutting is performed towards the four vertices at the bottom. See details... Figure 14 Each line in the process cuts the quadrangular prism, ultimately forming a converging prism 503 with a trapezoidal cross-section on the left. In this embodiment, the converging prism 503 can be configured as an isosceles trapezoidal prism, and the side with the larger area of ​​the isosceles trapezoid is the first light-emitting surface 603 in this embodiment. That is, the first light-emitting surface 603 includes a first sub-light-emitting surface 6031 and a second sub-light-emitting surface 6032, which are the side surfaces on both sides of the isosceles trapezoid. The two sub-light-emitting surfaces are symmetrically arranged with respect to the central axis of the converging prism, as detailed in [link to documentation]. Figure 13The structure of the text will not be elaborated here.

[0091] Furthermore, in fabricating the first directional prism 501 and the second directional prism 502 in the embodiments of this application, they can be fabricated in the manner described above for fabricating right-angled triangular prisms, ultimately forming the triangular prism structure shown in the figure, which will not be elaborated further here. The height of the prisms and the length of each side can be set according to the needs of different products, ensuring the performance of the first reflecting surface 601, the second reflecting surface 602, and the first light-emitting surface 603.

[0092] Meanwhile, when adjusting the different prisms, the first reflecting surface 601 of the first directional prism and the second reflecting surface 602 of the second directional prism are symmetrically arranged relative to the central axis of the converging prism 503. Thus, the light reflected by the first reflecting surface 601 reaches the first light-emitting surface 603 corresponding to the left side of the converging prism, while the light reflected by the second reflecting surface 602 reaches the first light-emitting surface 603 corresponding to the right side of the converging prism. After being reflected again by the first light-emitting surface, it exits from the light-emitting side. In this embodiment, by setting the converging prism with the above-mentioned isosceles trapezoidal structure, light is emitted from the first light-emitting surfaces in two different directions, thereby avoiding mutual interference between light rays. Simultaneously, it can effectively converge light from different areas, avoiding chromatic dispersion problems in the display panel and improving the display effect of the panel.

[0093] Furthermore, such as Figures 15-18 As shown, Figures 15-18 This is a schematic diagram illustrating the fabrication process of the prism assembly provided in the embodiments of this application. In the description, a partial film structure is used as an example. See details... Figure 15 In this embodiment, a dielectric layer 504 is prepared on the third LED stack 305. The material of the dielectric layer 504 can be a transparent TiO2 material with a high refractive index, and the material of the corresponding prism can be SiO2 or other transparent materials.

[0094] After the dielectric layer 504 is fabricated, it is etched at the positions corresponding to each sub-pixel region to form a groove 39. In this embodiment, when setting the groove 39, the sidewalls and corresponding inclination of the groove 39 can be determined according to the hypotenuse and sidewalls of the corresponding prism group, thereby ensuring that each subsequent prism can fit tightly with the sidewalls of the groove 39, ensuring the light-emitting effect of each face of the prism.

[0095] Furthermore, the structure of the prism described in the embodiments of this application is only for illustration. Each prism and its corresponding reflecting or emitting surface can be set as a freeform surface structure according to the propagation path of light. The light path can also be changed through the freeform surface, and the light from different areas can be converged to the same emitting surface and then emitted. The above implementation principle and effect are the same as those in the embodiments of this application, and will not be repeated here.

[0096] See details Figures 17-18 In the process, after the groove 39 is formed, different prisms are placed in the corresponding groove 39. During placement, the prisms in each sub-pixel area are placed according to their effect on light and the relative relationship between each reflective surface and the light-emitting surface, so as to ensure that the light can propagate along the required path and that the light is emitted from the light-emitting direction corresponding to the same light-emitting surface after being reflected by the reflective surface.

[0097] After all the prisms are set up, the dielectric layer 504 is then fabricated. At this point, the material of the dielectric layer 504 is similar to... Figure 15 The materials provided are the same, and the refractive index of the dielectric layer 504 is greater than that of the prism assembly 50. Thus, the high-refractive-index dielectric layer 504 encloses the low-refractive-index prism 50. When light enters the corresponding reflecting or emitting surface of the prism from the dielectric layer, total internal reflection is achieved, thereby changing the propagation path of the light and converging the light from different sub-pixel regions. Optionally, the refractive index of the dielectric layer can be set to 1.8-2.56, and the corresponding refractive index of the prism can be set to 1.5-1.78. For example, if the refractive index of the dielectric layer is set to 1.98, and the refractive index of the prism is set to 1.71, the effect of the prism and dielectric layer on the light is ensured.

[0098] Furthermore, this application also provides a light-emitting display device. In fabricating this display device, it includes the display panel described in this application embodiment, and the display panel is configured according to the film layer structure described in this application embodiment. By setting a prism group and arranging each sub-pixel region, light from different sub-pixel regions is converged onto the same light-emitting surface and emitted from the light-emitting side of the light-emitting surface. This avoids the problem of color dispersion in the display panel.

[0099] In this embodiment, the display panel and display device can be any product or component with display function or touch function, such as mobile phone, computer, electronic paper, monitor, etc., and there is no specific limitation on their specific type.

[0100] In summary, the above description provides a detailed overview of a display panel provided by the embodiments of the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the technical solution and core ideas of the present invention. Although the present invention has been disclosed above with preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention is based on the scope defined by the claims.

Claims

1. A display panel, characterized in that, The invention includes light-emitting devices arrayed on a silicon-based circuit substrate, wherein the light-emitting devices include a first light-emitting device disposed in a first sub-pixel region, a second light-emitting device disposed in a second sub-pixel region, and a third light-emitting device disposed in a third sub-pixel region; Prism groups are respectively set on the light-emitting side of the light-emitting device in different sub-pixel regions; The prism group includes a first directional prism disposed in the first sub-pixel region, a second directional prism disposed in the second sub-pixel region and opposite to the first directional prism, and a converging prism disposed in the third sub-pixel region. The first sub-pixel region and the second sub-pixel region are disposed in a first direction and on the same side of the third sub-pixel region. The sum of the lengths of the first sub-pixel region and the second sub-pixel region in the first direction is less than or equal to the length of the third sub-pixel region in the first direction. Furthermore, the first and second directional prisms reflect the emitted light from the corresponding light-emitting devices to the converging prism, where it is emitted to form display light.

2. The display panel according to claim 1, characterized in that, The first light-emitting device has a first color light-emitting layer that is electrically connected to the silicon-based circuit board; The second light-emitting device has a second color light-emitting layer that is electrically connected to the silicon-based circuit board; The third light-emitting device is provided with a third color light-emitting device that is electrically connected to the silicon-based circuit board; The first directional prism includes a first reflecting surface, the second directional prism includes a second reflecting surface, and the converging prism includes a first light-emitting surface. At least the light emitted by the first light-emitting device or the second light-emitting device is reflected by the first reflecting surface or the second reflecting surface, converges onto the first light-emitting surface, and is emitted.

3. The display panel according to claim 2, characterized in that, The first light-emitting device, the second light-emitting device, and the third light-emitting device all include a first color light-emitting layer, a second color light-emitting layer, and a third color light-emitting layer disposed in the light-emitting direction; In each light-emitting device, one of the three light-emitting layers of different colors is electrically connected to the silicon-based circuit substrate through an electrode, while the other two light-emitting layers are insulated from the silicon-based circuit substrate.

4. The display panel according to claim 2, characterized in that, The first reversing prism and the second reversing prism have the same structure, and the tilt direction of the first reflecting surface of the first reversing prism is the same as the tilt direction of the second reflecting surface of the second reversing prism.

5. The display panel according to claim 1, characterized in that, The display panel further includes a dielectric layer and a bonding layer disposed between two adjacent light-emitting layers; In each of the light-emitting devices, a light-emitting layer is electrically connected to the silicon-based circuit substrate, and the prism group is disposed within the dielectric layer, wherein the refractive index of the prism group is less than the refractive index of the dielectric layer.

6. A display panel, characterized in that, The invention includes light-emitting devices arrayed on a silicon-based circuit substrate, wherein the light-emitting devices include a first light-emitting device disposed in a first sub-pixel region, a second light-emitting device disposed in a second sub-pixel region, and a third light-emitting device disposed in a third sub-pixel region; Prism groups are respectively set on the light-emitting side of the light-emitting device in different sub-pixel regions; The prism group includes a first directional prism disposed in the first sub-pixel region, a second directional prism disposed in the second sub-pixel region and opposite to the first directional prism, and a converging prism disposed in the third sub-pixel region. The first sub-pixel region of the light-emitting device is disposed side by side with the second sub-pixel region of the light-emitting device and is disposed on the same side of the third sub-pixel region of the light-emitting device. Furthermore, the first and second directional prisms reflect the emitted light from the corresponding light-emitting devices to the converging prism, where it is emitted to form display light.

7. The display panel according to claim 6, characterized in that, The first reflecting surface of the first reversing prism, the second reflecting surface of the second reversing prism, and the first light-emitting surface of the converging prism have the same tilt angle.

8. The display panel according to claim 6, characterized in that, The first light-emitting device has a first color light-emitting layer that is electrically connected to the silicon-based circuit board; The second light-emitting device has a second color light-emitting layer that is electrically connected to the silicon-based circuit board; The third light-emitting device is provided with a third color light-emitting device that is electrically connected to the silicon-based circuit board; The first directional prism includes a first reflecting surface, the second directional prism includes a second reflecting surface, and the converging prism includes a first light-emitting surface. At least the light emitted by the first light-emitting device or the second light-emitting device is reflected by the first reflecting surface or the second reflecting surface, converges onto the first light-emitting surface, and is emitted.

9. The display panel according to claim 8, characterized in that, The first light-emitting device, the second light-emitting device, and the third light-emitting device all include a first color light-emitting layer, a second color light-emitting layer, and a third color light-emitting layer disposed in the light-emitting direction; In each light-emitting device, one of the three light-emitting layers of different colors is electrically connected to the silicon-based circuit substrate through an electrode, while the other two light-emitting layers are insulated from the silicon-based circuit substrate.

10. The display panel according to claim 6, characterized in that, The display panel further includes a dielectric layer and a bonding layer disposed between two adjacent light-emitting layers; In each of the light-emitting devices, a light-emitting layer is electrically connected to the silicon-based circuit substrate, and the prism group is disposed within the dielectric layer, wherein the refractive index of the prism group is less than the refractive index of the dielectric layer.

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