Display panel

Abstract

The embodiment of the invention provides a display panel. The display panel comprises light-emitting devices arranged on a silicon-based circuit substrate, the light-emitting devices comprise a first light-emitting device, a second light-emitting device and a third light-emitting device, and a prism group at least comprises a first turning prism, a second turning prism and a polymerization prism. The different prisms are correspondingly arranged on the light-emitting devices of different colors, and the first turning prism and the second turning prism reflect emergent light of the corresponding light-emitting devices to the polymerization prism to form display light after the emergent light is emitted out. According to the embodiment of the invention, the prism group is arranged, different prisms in the prism group act on the light rays, and then the light rays in different pixel areas are converged to the light-emitting surface of the prism group corresponding to the same light-emitting device and then are emitted, so that the concentration ratio of the light rays at the light-emitting center is effectively improved, the dispersion of the panel is reduced, and the light-emitting efficiency is improved. And the display effect of the device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of design and manufacturing of display panels, and in particular to a display panel. Background Art

[0002] With the continuous development of display panel manufacturing 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, a silicon-based (Si) circuit substrate material is currently used as a substrate and a Si-uLED light-emitting device is further formed thereon. Compared with traditional light-emitting devices, Si-uLED has the advantages of smaller size and higher brightness and has attracted attention. However, in the prior art, when preparing the above-mentioned light-emitting device, due to the small size of Si-uLED, when a plurality of light-emitting parts of different colors are horizontally arranged on the silicon-based circuit substrate and made to work normally, the light emitted by the light-emitting parts of different colors in the horizontal direction is more divergent, and the convergence effect is not ideal, and the light cannot be gathered and concentrated in the same area, which leads to the light-emitting device being prone to dispersion during normal operation, and even serious problems of image and text color separation, 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 and cannot be gathered and concentrated in the same area, which easily leads to poor display problems such as dispersion. Summary of the invention

[0005] The embodiment of the present invention provides a display panel to effectively improve the problem that light is easily dispersed and the display effect is not ideal when the existing display panel emits light for display.

[0006] In order to solve the above technical problems, a first aspect of an embodiment of the present invention provides a display panel, comprising light-emitting devices arranged in an array on a silicon-based circuit board, wherein the light-emitting devices include 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, arranged correspondingly on the light-emitting side of the light-emitting device in different sub-pixel regions;

[0008] The prism group includes a first direction-changing prism disposed in the first sub-pixel region, a second direction-changing prism disposed in the second sub-pixel region and opposite to the first direction-changing prism, and a polymerizing prism disposed in the third sub-pixel region;

[0009] The first direction-changing prism and the second direction-changing prism reflect the emitted light of the corresponding light-emitting device to the aggregation prism 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 is provided with at least a second color light emitting layer electrically connected to the silicon-based circuit substrate;

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

[0013] Among them, the first changing prism includes a first reflecting surface, the second changing prism includes a second reflecting surface, and the aggregation 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, and is gathered on the first light-emitting surface and emitted.

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

[0015] 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 an embodiment of the present invention, the first direction-changing prism and the second direction-changing prism have the same structure, and the inclination direction of the first reflection surface of the first direction-changing prism and the inclination direction of the second reflection surface of the second direction-changing prism are the same.

[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 arranged in the light emitting direction;

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

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

[0020] Wherein, a light-emitting layer in each of the light-emitting devices is electrically connected to the silicon-based circuit substrate, the prism group is arranged in the dielectric layer, and the refractive index of the prism group is smaller than the refractive index of the dielectric layer.

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

[0022] According to an 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] The light in the first sub-pixel area is reflected by the first reflection surface to the first sub-light emitting surface and then emitted, and the light in the second sub-pixel area is reflected by the second reflection surface to the second sub-light emitting surface and then emitted.

[0024] According to an 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 region of the light-emitting device and is arranged on the same side of the third sub-pixel region of the light-emitting device.

[0025] According to an embodiment of the present invention, the first reflection surface of the first direction-changing prism, the second reflection surface of the second direction-changing prism, and the first light-emitting surface of the aggregation prism have the same inclination angle.

[0026] Beneficial effects of the embodiments of the present invention: Compared with the prior art, the embodiments of the present application provide a display panel. The display panel includes a light-emitting device arranged on a silicon-based circuit substrate, the light-emitting device includes a first light-emitting device, a second light-emitting device and a third light-emitting device, and the prism group includes at least a first changing prism, a second changing prism and a polymerizing prism. Different prisms are arranged on light-emitting devices of different colors, and the first changing prism and the second changing prism reflect the emitted light of each corresponding light-emitting device to the polymerizing prism to form display light after being emitted. In the embodiments of the present application, by setting a prism group, different prisms in the prism group act on the light, and then the light in different pixel areas is gathered to 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 light-emitting center, reducing the dispersion of the panel, and improving the display effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A schematic diagram of the film layer structure of the horizontally stacked display panel provided in an embodiment of the present application;

[0029] Figure 2 In the embodiment of this application Figure 1 A simplified schematic diagram of

[0030] Figure 3 A schematic diagram of the planar arrangement of pixel areas of a first display panel provided in an embodiment of the present application;

[0031] Figure 4 A schematic diagram of light propagation of a display panel provided in an embodiment of the present application;

[0032] Figure 5 Another schematic diagram of light propagation of a display panel provided in an embodiment of the present application;

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

[0034] Figure 7 A schematic diagram of a first structure of a first direction-changing prism and a second direction-changing prism provided in an embodiment of the present application;

[0035] Figure 8 A schematic diagram of the structure of a polymer prism provided in an embodiment of the present application;

[0036] Fig. 9 A schematic diagram of another display panel arrangement provided in an embodiment of the present application;

[0037] Fig.10 In the embodiment of this application Fig. 9 Schematic diagram of light action corresponding to the arrangement structure;

[0038] Fig.11 Provided in the embodiments of this application Fig.10 The prismatic structure in

[0039] Fig.12 A schematic diagram of the arrangement structure of another display panel provided in an embodiment of the present application;

[0040] Fig.13 for Fig.12 Schematic diagram of light effect corresponding to the arrangement provided in;

[0041] Fig.14 It is a schematic diagram of the structure of each prism provided in the embodiments of the present application;

[0042] Figure 15-18 Schematic diagram of the preparation process of the prism assembly provided in the embodiment of the present application. DETAILED DESCRIPTION

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

[0044] In the drawings, the thickness of layers, films, panels, regions, etc. may be exaggerated for clarity and for better understanding and ease of description. It will be understood that when an element such as a layer, film, region, or substrate is referred to as being “on” another element, it can be directly on the other element or intervening elements may also be present.

[0045] In addition, unless explicitly described to the contrary, the word "comprise" and its variations like "include" or "contain" will be understood to imply the inclusion of the discussed elements, but not necessarily the exclusion of other elements. Further, in the specification, the word "on..." refers to placement above or below an object part, and does not necessarily mean placement on the upper side of an object part based on the direction of gravity.

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

[0047] As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0048] It will also be understood that the terms “comprises” and / or “comprising” as used herein specify the presence of stated features or components, 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 may be directly or indirectly formed on the other layer, region or component. For example, intervening layers, regions or components may be present.

[0050] In the following examples, the x-axis, y-axis, and z-axis are not limited to the three axes of the rectangular 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 can represent different directions that are not perpendicular to each other.

[0051] In an embodiment of the present application, a display panel is provided, which is a silicon-based full-color display panel, and the silicon-based full-color display panel is a horizontally stacked structure. Optionally, the film layer structure provided in the embodiment of the present application can also be applied to a general display panel, which will not be described here. In an embodiment of the present application, a prism group is provided to effectively collect light in different pixel areas onto the same light-emitting surface in the same pixel and emit it, thereby effectively reducing the problem of panel dispersion and improving the display effect of the device.

[0052] like Figure 1 As shown, Figure 1 Schematic diagram of the film layer structure of the horizontally stacked display panel provided in the embodiment of the present application. The display panel includes a plurality of pixel regions, which can be arranged in an array to form a plurality of light-emitting regions. Among them, the 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 description.

[0053] Specifically, the display panel includes a substrate 101 and a plurality of light-emitting devices arranged on the substrate 101. Each light-emitting device corresponds to a sub-pixel area. In the embodiment of the present application, the substrate 101 is a silicon-based circuit substrate, and different light-emitting devices are directly arranged on the silicon-based circuit substrate to form a silicon-based display panel, thereby improving the resolution and display effect of the light-emitting LED. At the same time, when a plurality of light-emitting devices are arranged, the light-emitting device may include a first light-emitting device, a second light-emitting device and a third light-emitting device. The first light-emitting device is correspondingly arranged in the first sub-pixel area 201, the second light-emitting device is correspondingly arranged in the second sub-pixel area 202, and the third light-emitting device is correspondingly arranged in the third sub-pixel area 203. In the following embodiments, they are all arranged according to the above-mentioned corresponding relationship, which will not be repeated here.

[0054] Specifically, when the silicon-based circuit substrate is prepared, a plurality of control transistors are also formed in the silicon-based circuit substrate, which are not specifically shown in the figure. The plurality of control transistors can provide corresponding control signals to the light-emitting device, so that the panel can display normal light. When the silicon-based circuit substrate is prepared, its preparation process can be prepared according to the general silicon-based circuit substrate, which will not be described in detail.

[0055] Further, in the embodiment of the present application, in each sub-pixel area, the light-emitting device of the display panel also includes a stacked three-color light-emitting layer. Specifically, in the following embodiments, when the three-color light-emitting layer is set, the three-color light-emitting layer is described by taking the first LED stack, the second LED stack, and the third LED stack as examples, and the light of each different color is emitted from the position avoiding other light-emitting layers. Among them, each LED stack is set to a different color, and at the same time, a bonding layer is provided between two adjacent light-emitting layers. Further, the display panel also includes a prism group arranged above the stack, and the prism group is arranged on the light-emitting side of the continuous and different-color light-emitting devices. In the following embodiments, the first LED stack is correspondingly set to the first color light-emitting layer, the second LED stack is correspondingly set to the second color light-emitting layer, and the third LED stack is correspondingly set to the third color light-emitting layer as an example for description.

[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 correspondingly arranged in the first sub-pixel region 201, the second sub-pixel region 202, and the third sub-pixel region 203.

[0057] Specifically, during setting, the first electrode layer 300 in each sub-pixel area can be electrically set on the substrate at the same time, and the first LED stack 301 is set on the first electrode layer 300, the first bonding layer 302 is set on the first LED stack 301 and completely covers the first LED stack 301, the second LED stack 303 is set on the first bonding layer 302, and at the same time, the third LED stack 305 is set on the second bonding layer 304.

[0058] In the embodiment of the present application, 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 stacked in the light emitting direction;

[0059] Among them, in each light-emitting device, the light-emitting layer of any one color is electrically connected to the silicon-based circuit substrate through an electrode, and the light-emitting layers of the other colors are insulated from the silicon-based circuit substrate. That is, in the arrangement of the above-mentioned different LED stacks and corresponding sub-pixel regions, only one LED stack in each sub-pixel region can work normally and emit light, and the light-emitting layers of the other two colors 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, in the third sub-pixel area 203, a second electrode layer 401 is provided. The second electrode 401 can be provided 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-emitting display of the first LED stack.

[0061] A third electrode layer 402 and a fourth electrode layer 403 are also provided in the first sub-pixel region 201. Specifically, the third electrode layer 402 and the fourth electrode layer 403 can be provided on both sides of the second LED stack 303, such as being provided at the left and right positions of the second LED stack 303, respectively, and are both electrically connected to the second LED stack 303. In this way, when the second LED stack 303 works normally, a control signal is applied to the second LED stack 303 through the third electrode layer 402 and the fourth electrode layer 403, and the second LED stack 303 works normally.

[0062] Furthermore, a fifth electrode layer 404 and a sixth electrode layer 405 are further provided in the second sub-pixel region 202. The fifth electrode layer 404 and the sixth electrode layer 405 may be provided on both sides of the third LED stack 305. For example, the fifth electrode layer 404 is provided above the third LED stack 305, and the sixth electrode layer 405 is provided at a reserved position on the right side of the third LED stack. In this way, a control signal is provided to the third LED stack 305 through the fifth electrode layer 404 and the sixth electrode layer 405, and the light emission and normal operation of the third LED stack are ensured.

[0063] In the embodiment of the present application, in each sub-pixel region, only one layer of LED stacking is correspondingly provided with electrodes. Therefore, when the panel is working normally, only one layer of LED stacking in each sub-pixel region can work normally and emit light, thereby visually forming a full-color display panel with a horizontal stacking structure in the embodiment of the present application. In the following embodiments, in the first sub-pixel region, the first LED stacking layer 301 can be a green light-emitting layer, i.e., a first color light-emitting layer, which corresponds to a green sub-pixel, in the second sub-pixel region, the second LED stacking layer 303 can be a blue light-emitting layer, i.e., a second color light-emitting layer, which corresponds to a blue sub-pixel, and in the third sub-pixel region, the third LED stacking layer 305 can be set to a red light-emitting layer, i.e., a third color light-emitting layer, which corresponds to a red sub-pixel. Optionally, the colors of the LED stacking layers in the above-mentioned different sub-pixel regions can be set as needed to ensure that in the pixel region, each sub-pixel region only emits light of one color. The colors in the above-mentioned different sub-pixel regions are only examples, which can be changed as needed, but the light action principle and effect are the same, which will not be repeated here.

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

[0065] In the embodiment of the present application, when preparing different LED stack 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. When setting, it can be set according to a conventional full-color LED stack structure, which is only an example and will not be described in detail.

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

[0067] Combination Figure 1 Specifically, the prism group 50 includes a first direction-changing prism 501 disposed in the first sub-pixel region 201, a second direction-changing prism 502 disposed in the second sub-pixel region 202, and a polymerizing prism 503 disposed in the third sub-pixel region 203. When the prism group is set, a dielectric layer 504 may be firstly disposed on the third LED stack, and then the prism group 50 may be correspondingly disposed in the dielectric layer 504 and fixed. Optionally, the thickness of the above different prisms may be the same in the light emitting direction. This ensures the effect of different prisms on light.

[0068] See Figure 2 As shown, the first direction-changing prism 501 includes a first reflection surface 601, the second direction-changing prism includes a second reflection surface 602, and the aggregation 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 reflection surface or the second reflection surface, and then converges to the first light-emitting surface 603 of the aggregation prism 503, and is emitted from the first light-emitting surface 603. Therefore, in the embodiment of the present application, by setting a prism group structure, when the light propagates to different prisms in the prism group, the propagation path of the light changes, so that the light in different sub-pixel areas converges into the same sub-pixel, and continues to be emitted from the light-emitting surface in the sub-pixel area. Thereby, the concentration of light is effectively improved, the divergence of light is reduced, and the display effect of the panel is improved.

[0069] In the embodiment of the present application, when the above-mentioned different prisms are set, the aggregation prism corresponds to the light-emitting surface, and the light in other sub-pixel areas passes through the corresponding reflection surface and is collected on the aggregation prism. At this time, the prism where the light is collected is the aggregation prism in the embodiment of the present application, and then continues to be reflected and emitted from the light-emitting surface of the aggregation prism. At the same time, the first changing prism 501, the second changing prism 502 and the aggregation prism 503 are respectively arranged on light-emitting devices of different colors, and the first changing prism 501 and the second changing prism 502 reflect the emitted light of the corresponding light-emitting devices to the aggregation prism 503 to form display light.

[0070] In the embodiment of the present application, at least the light emitted from the first sub-pixel region or the second sub-pixel region is reflected by the first reflection surface or the second reflection surface, and is collected on the first light emitting surface and emitted.

[0071] Specifically, Figure 3 As shown, Figure 3 The schematic diagram of the planar arrangement of the pixel area of ​​the first display panel provided in the embodiment of the present application is shown in FIG. Figure 1-Figure 2 In the film layer structure, in the embodiment of the present application, when a plurality of 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 the first direction Y, such as the first direction Y is a vertical direction. At the same time, the third sub-pixel region and the first sub-pixel region or the second sub-pixel region are arranged in the second direction X, such as the second direction X is a horizontal direction. And the first sub-pixel region and the second sub-pixel region are arranged 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 can effectively ensure that the first direction-changing prism in the first sub-pixel region and the second direction-changing prism in the second sub-pixel region can reflect the light irradiated thereon to the light-emitting surface of the aggregation prism to the greatest extent, thereby improving the light emission and display effects of the panel.

[0073] like Figure 4 , Figure 5 as well as Figure 6 As shown, Figure 4 is a schematic diagram of light propagation of a display panel provided in an embodiment of the present application, Figure 5 Another schematic diagram of light propagation of a display panel provided in an embodiment of the present application is shown.

[0074] Figure 6 for Figure 4 , Figure 5 Schematic diagram of the planar arrangement of each pixel area of ​​the display panel. Figure 6In the example, the propagation of light in two adjacent pixel areas is used as an example to illustrate.

[0075] Specifically, since different prisms are arranged on the LED stacks in each sub-pixel region, after the first LED stack in another first sub-pixel region 2011 adjacent to the first sub-pixel region 201 emits light D, if the light D is green light, the light D first passes through the first redirecting prism above the first LED stack in the process of being emitted outward, and is reflected on the first reflection surface 601 of the first redirecting prism, and then changes from the vertical direction to the horizontal direction, and propagates to one side of the first sub-pixel region 201. In the process of propagation, it directly passes through the aggregation prism on the propagation path, reaches the first sub-pixel region in the adjacent pixel region, and is acted on by the first reflection surface 601 again. At this time, the optical path of the light is changed again, and propagates to the aggregation prism 503. Specifically, it propagates to the first light emitting surface 603 of the aggregation prism 503, and is reflected on the first light emitting surface 603, such as total reflection on the first light emitting surface, and finally is emitted from the light emitting side of the display panel.

[0076] Similarly, in the second sub-pixel region 202, after the LED stack in another adjacent second sub-pixel region 2021 emits light, if the corresponding light F is a blue light, the light propagation and the effects on the various reflection surfaces and light-emitting surfaces are the same as the light effects in the first sub-pixel region, and no further description is given here. Therefore, in the embodiment of the present application, by setting a prism group above the LED stack, and the prisms in different sub-pixel regions have different reflection surfaces or light-emitting surfaces, the light in other different sub-pixel regions is effectively gathered onto the same light-emitting surface, and finally emitted from the light-emitting surface, which effectively improves the light-emitting effect of the panel and the concentration of light.

[0077] In the embodiment of the present application, in the above arrangement structure, the first direction-changing prism and the second direction-changing prism are configured to have the same structure, such as having the same reflection surface, the same shape and size, etc. The first reflection surface of the first direction-changing prism and the second reflection surface of the second direction-changing prism have the same inclination direction, thereby ensuring the effects of the two on the light in adjacent pixel areas.

[0078] like Figure 7 As shown, Figure 7This is a schematic diagram of the first structure of the first and second direction-changing prisms provided in the embodiment of the present application. Specifically, the first and second direction-changing prisms are both configured as special-shaped polyhedron structures, and the aggregate prism is configured as a triangular prism. Among them, for the special-shaped polyhedron structure, when setting it, a rectangular quadrangular prism A can be cut, such as cutting from its vertex b, vertex c, vertex d, and vertex f toward the corresponding edges, such as cutting along vertex b and vertex d, and toward the midpoint of edge 01 and the midpoint of edge 02, and at the same time, cutting along vertex c and vertex f, and toward the midpoint of edge 02 and the midpoint of edge 03. After the cutting is completed, Figure 7 The rectangle on the right obtains the special-shaped polyhedral prism shown in the left figure. The special-shaped polyhedral prism includes 6 facets, and the largest facet is the first reflection surface 601 provided in the embodiment of the present application.

[0079] Similarly, the structure of the second direction-changing prism is obtained by the above method, which will not be described in detail here. Figure 3 The surface corresponding to the dotted line in the first changing prism and the second changing prism.

[0080] like Figure 8 As shown in Figure 8 Schematic diagram of the structure of the polymer prism provided in the embodiment of the present application. In the embodiment of the present application, the polymer prism is configured as a triangular prism. Specifically, when the polymer prism is prepared, refer to Figure 8 As shown in the figure on the right, 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 the present application, when the prism group and the corresponding dielectric layer are set, the refractive index of the dielectric layer can be greater than the refractive index of the prism group, so that when the light enters the corresponding prism group with a lower refractive index from the dielectric layer with a larger refractive index, full reflection can occur on the first reflection surface, the second reflection surface, and the first light-emitting surface, thereby achieving a change in the light path. At the same time, when the above-mentioned polymer prism is set, the cross-section of the polymer prism is a right-angle structure, and the bottom surfaces corresponding to the two right-angle sides are parallel to the LED stack. This ensures that the light can pass directly from the right-angle side to prevent reflection from occurring on the right-angle side.

[0082] like Fig. 9 As shown, Fig. 9 A schematic diagram of another display panel arrangement provided in an embodiment of the present application. Figure 3In the structure, in the embodiment of the present application, when arranging the pixel areas of the display panel, the first sub-pixel area 201 is arranged side by side with the second sub-pixel area 202 and the third sub-pixel area 203, and the first sub-pixel area 201 and the second sub-pixel area 202 are both arranged on the same side of the third sub-pixel, as shown in the figure, the two sub-pixels are arranged on the right side of the third sub-pixel area 203.

[0083] like Fig.10 As shown, Fig.10 In the embodiment of this application Fig. 9 Schematic diagram of the light effect corresponding to the arrangement structure. According to the principle and method of the prism group on light in the embodiment of the present application, Fig. 9 In the pixel arrangement structure, in each pixel area, the light in the first sub-pixel area 201 and the second sub-pixel area 202 is reflected by the reflection surface of the corresponding prism, converges on the light-emitting surface of the prism of the third sub-pixel area 203, and after being reflected by the light-emitting surface, is emitted from the light-emitting side.

[0084] See Fig.10 In the embodiment of the present application, since the position of the corresponding sub-pixel area changes, when the above-mentioned prism group 50 is set, the above-mentioned first changing prism 501, the second changing prism 502 and the aggregation prism 503 can be set to the same structure. Optionally, the above-mentioned different prisms are all set to triangular prisms. And the first changing prism 501 has a first reflecting surface 601, the second changing prism 502 has a second reflecting surface 602, and the aggregation prism 503 has a first light emitting surface 603. In this way, at least the light emitted from the first sub-pixel area or the second sub-pixel area is reflected by the first reflecting surface 601 or the second reflecting surface 602, and is collected on the first light emitting surface 603 and emitted. Thereby, the light output rate corresponding to the third sub-pixel area is increased, the problem of dispersion of the panel during display is prevented, and the display effect of the device is improved.

[0085] At this time, since different prisms are set to the same structure, when different reflecting surfaces are set, the inclination direction and angle of the first reflecting surface 601 and the second reflecting surface 602 can be the same, and the same as the inclination direction and angle of the first light-emitting surface 603. Optionally, all three are inclined to the left, and the inclination angle is 45°. In this way, the light can be totally reflected on the first reflecting surface 601 and the second reflecting surface 602, and propagate along the second direction X to the first light-emitting surface 603, and be totally reflected again.

[0086] like Fig.11 As shown, Fig.11 Provided in the embodiments of this application Fig.10Referring to the preparation process and structure of the above prisms, in this embodiment, the first direction-changing prism, the second direction-changing prism and the aggregate prism can be obtained by cutting a quadrangular prism. For example, cutting along opposite diagonal vertices to form a prism group in the embodiment of the present application is not described in detail here.

[0087] Further, such as Fig.12 As shown, Fig.12 Schematic diagram of the arrangement structure of another display panel provided in the embodiment of the present application. In the embodiment of the present application, the arrangement of each sub-pixel in the pixel area can be further changed. Specifically, the first sub-pixel area 201, the second sub-pixel area 202 and the third sub-pixel 203 are arranged side by side, and the first sub-pixel area 201 and the second sub-pixel area 202 are arranged on two opposite sides of the third sub-pixel 203.

[0088] At this time, the light in the first sub-pixel region 201 and the second sub-pixel region 202 is reflected by the corresponding reflection surfaces, converges to the light-emitting surface of the prism in the third sub-pixel region, and is emitted from the light-emitting side.

[0089] Specifically, Fig.13 As shown, Fig.13 for Fig.12 Since the third sub-pixel region 203 is located in the middle, when setting the prism structures of the prism groups above the sub-pixel regions, the aggregate prism 503 can be set as a prism structure of an isosceles trapezoidal structure, and at the same time, the first changing prism 501 and the second changing prism 502 are set to the same prism structure, and are set as a right-angle triangular prism structure.

[0090] like Fig.14 As shown, Fig.14 Schematic diagram of the structure of each prism provided in the embodiment of the present application. Combined with the structure of other prisms in the embodiment of the present application and the schematic diagram of the light action, in the embodiment of the present application, when preparing to form the polymer prism 503, a quadrangular prism 84 can be selected, and then two cutting points are selected from the first side 85 and the second side 86 opposite to the upper surface of the quadrangular prism 84, and the cutting is performed toward the four vertices at the bottom, see Fig.14 The four prisms are cut according to the lines in the figure, and finally a polymer prism 503 with a trapezoidal cross-section on the left is formed. In the embodiment of the present application, the polymer prism 503 can be set as an isosceles trapezoidal prism, and the side with a larger area of ​​the isosceles trapezoid is the first light-emitting surface 603 in the embodiment of the present application. That is, at this time, the first light-emitting surface 603 includes a first sub-light-emitting surface 6031 and a second sub-light-emitting surface 6032, and the first sub-light-emitting surface 6031 and the second sub-light-emitting surface 6032 are the side surfaces on both sides of the isosceles trapezoid. The two sub-light-emitting surfaces are symmetrically arranged relative to the central axis of the polymer prism, see for details. Fig.13The structure in will not be described here.

[0091] Further, when preparing the first and second direction-changing prisms 501 and 502 in the embodiment of the present application, they can be prepared in the manner of preparing the right-angled triangular prism described above, and finally form the triangular prism structure shown in the figure, which will not be described in detail here. The height of the prism and the length of each side can be set according to the requirements of different products, and the performance of the first reflective surface 601, the second reflective surface 602 and the first light-emitting surface 603 can be guaranteed.

[0092] At the same time, when regulating the above-mentioned different prisms, the first reflection surface 601 of the first redirecting prism and the second reflection surface 602 of the second redirecting prism are symmetrically arranged relative to the central axis of the aggregation prism 503, so that the light reflected by the first reflection surface 601 can reach the first light-emitting surface 603 corresponding to the left side of the aggregation prism, and at the same time, the light reflected by the second reflection surface 602 can reach the first light-emitting surface 603 corresponding to the right side of the aggregation prism, and after being reflected again by the first light-emitting surface, it is emitted from the light-emitting side. In the embodiment of the present application, by setting the above-mentioned isosceles trapezoidal structure aggregation prism, the light is emitted from the first light-emitting surface in two different directions, thereby avoiding the problem of mutual interference between the light. At the same time, the light in different areas can be effectively gathered, avoiding the problem of dispersion of the display panel and improving the display effect of the panel.

[0093] Further, such as Figure 15-18 As shown, Figure 15-18 This is a schematic diagram of the preparation process of the prism assembly provided in the embodiment of the present application. When describing, a partial film layer structure is taken as an example. Fig.15 In the embodiment of the present application, a dielectric layer 504 is prepared on the third LED stack 305. In the embodiment of the present application, the material of the dielectric layer 504 can be transparent TiO 2 The corresponding prism material can be set to SiO 2 , or other transparent materials.

[0094] After the dielectric layer 504 is prepared, the dielectric layer 504 is etched at the position corresponding to each sub-pixel area to form a groove 39. In the embodiment of the present application, when the groove 39 is set, the side wall of the groove 39 and the corresponding inclination can be determined according to the hypotenuse and side wall of the corresponding prism group, so as to ensure that each subsequent prism can be closely attached to the side wall of the groove 39, and ensure the effect of each surface of the prism on the light.

[0095] Furthermore, the structure of the above-mentioned prism in the embodiment of the present application is for illustration only. Each prism and the corresponding reflecting surface or light-emitting surface can be set as a free-form surface structure according to the propagation path of the light. The free-form surface can also be used to change the light path, and the light in different areas can be converged onto the same light-emitting surface and then emitted. The above-mentioned implementation principles and effects are the same as those in the embodiment of the present application and will not be repeated here.

[0096] See Figure 17-Figure 18 After the groove 39 is formed, different prisms are placed in the corresponding groove 39. When placing, they are placed according to the effect of the prism in each sub-pixel area on the 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 ensure 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 prisms are set, the dielectric layer 504 is prepared. At this time, the material of the dielectric layer 504 is Fig.15 The material provided in the embodiment is the same as that provided in the embodiment, and the refractive index of the dielectric layer 504 is greater than the refractive index of the prism group 50. In this way, the dielectric layer 504 with a high refractive index wraps the prism 50 with a low refractive index. When the light enters the corresponding reflection surface or light-emitting surface of the prism from the dielectric layer, the effect of total reflection can be achieved, thereby changing the propagation path of the light and converging the light in different sub-pixel areas. Optionally, the refractive index of the dielectric layer can be set to 1.8-2.56, and the refractive index of the corresponding prism can be set to 1.5-1.78, such as the refractive index of the dielectric layer is set to 1.98, and at the same time, the refractive index of the prism is set to 1.71, so as to ensure the effect of the prism and the dielectric layer on the light.

[0098] Furthermore, an embodiment of the present application also provides a light-emitting display device. When preparing the display device, it includes the display panel in the embodiment of the present application, and the display panel is arranged according to the film layer structure in the embodiment of the present application, and by setting a prism group and arranging each sub-pixel area, the light in different sub-pixel areas is gathered on the same light-emitting surface and emitted from the light-emitting side of the light-emitting surface, thereby avoiding the problem of dispersion of the display panel.

[0099] In the embodiment of the present application, the display panel and the display device can be any product or component with display function or touch function, such as a mobile phone, a computer, an electronic paper, a display, etc., and the specific type is not specifically limited.

[0100] In summary, the above is a detailed introduction to a display panel provided by an embodiment of the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the technical solution and core idea of ​​the present invention. Although the present invention is disclosed as above in the form of preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Ordinary technicians in this field can make various changes and modifications 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 comprises a light emitting device arrayed on a silicon-based circuit board, wherein the light emitting device comprises 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; A prism group, arranged correspondingly on the light-emitting side of the light-emitting device in different sub-pixel regions; The prism group includes a first direction-changing prism disposed in the first sub-pixel region, a second direction-changing prism disposed in the second sub-pixel region and opposite to the first direction-changing prism, and a polymerizing prism disposed in the third sub-pixel region; The first direction-changing prism and the second direction-changing prism reflect the emitted light of the corresponding light-emitting device to the aggregation prism to form display light.

2. The display panel according to claim 1, characterized in that: The first light emitting device is provided with a first color light emitting layer electrically connected to the silicon-based circuit substrate; The second light emitting device is provided with a second color light emitting layer electrically connected to the silicon-based circuit substrate; The third light emitting device is provided with a third color light emitting device electrically connected to the silicon-based circuit substrate; Among them, the first changing prism includes a first reflecting surface, the second changing prism includes a second reflecting surface, and the aggregation 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, and is gathered on the first light-emitting surface and 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 arranged in the light emitting direction; Among the three light-emitting layers of different colors corresponding to each light-emitting device, one light-emitting layer is electrically connected to the silicon-based circuit substrate through an electrode, and 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 sub-pixel region and the second sub-pixel region are arranged 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.

5. The display panel according to claim 2, characterized in that: The first direction-changing prism and the second direction-changing prism have the same structure, and the inclination direction of the first reflection surface of the first direction-changing prism and the inclination direction of the second reflection surface of the second direction-changing prism are the same.

6. The display panel according to claim 1, characterized in that: The display panel further comprises a dielectric layer and a bonding layer arranged between two adjacent light-emitting layers; Wherein, a light-emitting layer in each of the light-emitting devices is electrically connected to the silicon-based circuit substrate, the prism group is arranged in the dielectric layer, and the refractive index of the prism group is smaller than the refractive index of the dielectric layer.

7. The display panel according to claim 2, characterized in that: The first sub-pixel region and the second sub-pixel region are arranged side by side and are respectively arranged on two opposite sides of the third sub-pixel region.

8. The display panel according to claim 7, characterized in that: The first light-emitting surface of the polymer prism includes a first sub-light-emitting surface and a second sub-light-emitting surface; The light in the first sub-pixel area is reflected by the first reflection surface to the first sub-light emitting surface and then emitted, and the light in the second sub-pixel area is reflected by the second reflection surface to the second sub-light emitting surface and then emitted.

9. The display panel according to claim 1, characterized in that: The first sub-pixel region of the light emitting device is arranged side by side with the second sub-pixel region of the light emitting device and is arranged on the same side of the third sub-pixel region of the light emitting device.

10. The display panel according to claim 9, characterized in that: The first reflection surface of the first direction-changing prism, the second reflection surface of the second direction-changing prism, and the first light-emitting surface of the aggregation prism have the same inclination angle.

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