Display panel and display device

Abstract

The embodiment of the invention provides a display panel and a display device. The display panel comprises a substrate, a blue light long distance, a condensation layer, a quantum dot layer and a dimming layer. Wherein the blue light source layer is located on one side of the substrate, and the blue light source layer comprises a first blue light source. The condensation layer is located on the side, away from the substrate, of the blue light source layer and comprises a first condensation lens, and the first condensation lens covers the first blue light source in the stacking direction of the blue light source layer and the condensation layer. The quantum dot layer is located on the side, away from the substrate, of the light condensation layer and comprises first quantum dots, and the first light condensation lens and the first quantum dots are at least partially overlapped in the stacking direction of the blue light source layer and the light condensation layer. The dimming layer is located on the side, away from the substrate, of the quantum dot layer and comprises a first dimming lens, and the first dimming lens and the first quantum dots are at least partially overlapped in the stacking direction of the blue light source layer and the light condensation layer. The embodiment of the invention is used for improving the light-emitting effect of the pixels of the display panel.

Description

Technical Field

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

[0002] With the development of display technology, Micro LEDs, with their superior brightness and saturation, are becoming a major trend in the future display sector. Compared to OLEDs (Organic Light-Emitting Diodes), Micro LEDs (Micro Light-Emitting Diodes) are more suitable for in-vehicle displays that require high reliability and a wide range of sizes.

[0003] However, with the development of Mirco LED display panels, the pixel luminescence effect thereof has gradually failed to meet market demand, and therefore it is necessary to further optimize the display panels to improve the pixel luminescence effect. Summary of the Invention

[0004] In view of this, embodiments of the present application provide a display panel and a display device to optimize the display panel and improve the luminous effect of pixels.

[0005] In a first aspect, an embodiment of the present application provides a display panel comprising: a substrate, a blue light source layer, a focusing layer, a quantum dot layer, and a dimming layer. The blue light source layer is located on one side of the substrate, and the blue light source layer includes a first blue light source. The focusing layer is located on the side of the blue light source layer facing away from the substrate, and the focusing layer includes a first focusing lens, and along the stacking direction of the blue light source layer and the focusing layer, the first focusing lens covers the first blue light source. The quantum dot layer is located on the side of the focusing layer facing away from the substrate, and the quantum dot layer includes a first quantum dot, and along the stacking direction of the blue light source layer and the focusing layer, the first focusing lens and the first quantum dot at least partially overlap. The dimming layer is located on the side of the quantum dot layer facing away from the substrate, and the dimming layer includes a first dimming lens, and along the stacking direction of the blue light source layer and the focusing layer, the first dimming lens and the first quantum dot at least partially overlap.

[0006] In one possible implementation of the first aspect, the blue light source layer further includes a second blue light source, the quantum dot layer includes a transparent portion, and the dimming layer includes a second dimming lens. Along the stacking direction of the blue light source layer and the light-focusing layer, the second blue light source at least partially overlaps the transparent portion, and the second dimming lens at least partially overlaps the transparent portion.

[0007] In one possible implementation of the first aspect, the system further includes a spectroscopic layer, located on a side of the blue light source layer facing away from the substrate, and comprising a spectroscopic lens. The blue light source layer also includes a second blue light source, and the quantum dot layer includes a transparent portion. Along the stacking direction of the blue light source layer and the light-collecting layer, the light-collecting layer and the second blue light source do not overlap, while the spectroscopic lens and the second blue light source overlap, and the spectroscopic lens and the transparent portion overlap.

[0008] In a possible implementation of the first aspect, along a stacking direction of the blue light source layer and the light focusing layer, the light splitting layer is located between the blue light source layer and the light focusing layer.

[0009] In a possible implementation of the first aspect, the light-collecting layer further includes a second light-collecting lens, and along a stacking direction of the blue light source layer and the light-collecting layer, the second light-collecting lens covers the second blue light source.

[0010] In a possible implementation of the first aspect, the first focusing lens includes a curved portion and a bottom, the curved portion is connected to the bottom, the curved portion is located on a side of the bottom facing away from the substrate, and the curved portion is curved toward the bottom.

[0011] In a possible implementation of the first aspect, the orthographic projection of the first condensing lens on the substrate is rectangular, circular, or elliptical.

[0012] In a possible implementation of the first aspect, the first dimming lens includes a curved portion and a bottom, the curved portion is connected to the bottom, the curved portion is located on a side of the bottom facing the substrate, and the curved portion is curved toward the bottom.

[0013] In a possible implementation of the first aspect, an orthographic projection of the first dimming lens on the substrate is rectangular, circular, or elliptical.

[0014] In a possible implementation of the first aspect, an orthographic projection of the first condensing lens on the substrate is the same as an orthographic projection of the first dimming lens on the substrate.

[0015] In a possible implementation of the first aspect, an orthographic projection of the first condensing lens on the substrate is different from an orthographic projection of the first dimming lens on the substrate.

[0016] In a possible implementation of the first aspect, a distance between a center line of the first focusing lens and a center line of the first dimming lens is greater than zero.

[0017] In a possible implementation of the first aspect, the size of the first condensing lens is larger than the size of the second condensing lens, and / or the size of the first dimming lens is larger than the size of the second dimming lens.

[0018] In a possible implementation manner of the first aspect, the blue light source layer further includes a third blue light source.

[0019] The light-collecting layer further includes a third light-collecting lens. Along the stacking direction of the blue light source layer and the light-collecting layer, the third light-collecting lens covers the third blue light source.

[0020] The quantum dot layer further includes a second quantum dot, the second quantum dot emits red light, and the first quantum dot emits green light. Along the stacking direction of the blue light source layer and the focusing layer, the third focusing lens at least partially overlaps the second quantum dot.

[0021] The dimming layer further includes a third dimming lens. Along the stacking direction of the blue light source layer and the light focusing layer, the third dimming lens at least partially overlaps with the second quantum dots.

[0022] The size of the first focusing lens is smaller than or equal to the size of the third focusing lens, and / or the size of the first dimming lens is smaller than or equal to the size of the third dimming lens.

[0023] In a possible implementation of the first aspect, the blue light source layer also includes a third blue light source. The focusing layer also includes a third focusing lens, and along the stacking direction of the blue light source layer and the focusing layer, the third focusing lens covers the third blue light source. The quantum dot layer also includes a second quantum dot, and the color of light emitted by the second quantum dot is different from the color of light emitted by the first quantum dot. Along the stacking direction of the blue light source layer and the focusing layer, the third focusing lens at least partially overlaps with the second quantum dot. The dimming layer also includes a third dimming lens, and along the stacking direction of the blue light source layer and the focusing layer, the third dimming lens at least partially overlaps with the second quantum dot. In which, the orthographic projection shape of the first focusing lens on the substrate is different from the orthographic projection shape of the third focusing lens on the substrate, and / or the orthographic projection shape of the first dimming lens on the substrate is different from the orthographic projection shape of the third dimming lens on the substrate.

[0024] In a second aspect, an embodiment of the present application further provides a display device, comprising a display panel provided by the first aspect or any implementation of the first aspect.

[0025] The display panel provided in an embodiment of the present application includes a light-collecting layer and a dimming layer. The first light-collecting lens in the light-collecting layer focuses light on the first blue light source, thereby allowing the first quantum dots to receive more blue light. Consequently, the first quantum dots can excite more light. Therefore, the display panel provided in an embodiment of the present application ultimately improves the luminous effect of the pixels of the display panel. The first dimming lens in the dimming layer adjusts the light emitted by the first quantum dots, thereby improving the display effect of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0027] Figure 1 A schematic diagram of a display panel provided in an embodiment of the present application; Figure 2 A schematic diagram of a display panel provided in an embodiment of the present application; Figure 3a A schematic diagram of a display panel provided in an embodiment of the present application; Figure 3b A schematic diagram of a display panel provided in an embodiment of the present application; Figure 4 A schematic diagram of a display panel provided in an embodiment of the present application; Figure 5 A schematic diagram of a display panel provided in an embodiment of the present application; Figure 6a A schematic diagram of a display panel provided in an embodiment of the present application; Figure 6b A schematic diagram of a display panel provided in an embodiment of the present application; Figure 6c A schematic diagram of a display panel provided in an embodiment of the present application; Figure 7 A schematic diagram of a first focusing lens provided in an embodiment of the present application; Figure 8 A schematic diagram of a first focusing lens provided in an embodiment of the present application; Figure 9 A schematic diagram of a first focusing lens provided in an embodiment of the present application; Figure 10 A schematic diagram of a first focusing lens provided in an embodiment of the present application; Figure 11a A schematic diagram of a display panel provided in an embodiment of the present application; Figure 11b A schematic diagram of a display panel provided in an embodiment of the present application; Figure 11c A method provided in the embodiment of the present application Figure 11a Display brightness simulation diagram corresponding to the display panel in; Figure 12 A schematic diagram of a display panel provided in an embodiment of the present application; Figure 13A schematic diagram of a display panel provided in an embodiment of the present application; Figure 14 A schematic diagram of a display device provided in an embodiment of the present application.

[0028] Label Description 100. Display panel; 101. Substrate; 110. Blue light source layer; 111. First blue light source; 112. Second blue light source; 113. Third blue light source; 120. Focusing layer; 121. First focusing lens; 1211. Bottom; 1212. Curved portion; 122. Second focusing lens; 123. Third focusing lens; 130. Quantum dot layer; 131. First quantum dots; 132. Transparent portion; 133. Blue quantum dots; 134. Second quantum dots; 140. Dimming layer; 141. First dimming lens; 142. Second dimming lens; 143. Third dimming lens; 150. Splitting layer; 151. Splitting lens; 200. Display device. DETAILED DESCRIPTION

[0029] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0030] It should be clear that the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0031] The terms used in the embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. The singular forms "a", "an", "the" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.

[0032] It should be understood that the term "and / or" as used herein simply describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. Furthermore, the character " / " in this document generally indicates an "or" relationship between the associated objects.

[0033] In related technologies, there are two main approaches to achieving full-color Micro LED displays: one is to use RGB microLEDs directly for display, and the other is to use a blue light chip combined with a conversion layer to achieve full-color display. Because blue light chips have the highest luminous efficiency, the blue light chip combined with a conversion layer solution is widely used in the field of full-color Micro LED displays.

[0034] like Figure 1 As shown, a display panel 100 includes: a substrate 101, a blue light source layer 110, a light-collecting layer 120, a quantum dot layer 130, and a dimming layer 140. The blue light source layer 110 is located on one side of the substrate 101 and includes a first blue light source 111. In one possible implementation, the blue light source layer 110 includes multiple blue light sources, which are used to provide light to the quantum dot layer 130. Light passing through the quantum dots in the quantum dot layer 130 excites the quantum dots to emit corresponding light colors, such as red, green, and blue. Some of the multiple blue light sources are the first blue light sources 111. In a preferred implementation, the first blue light source 111 provides light for red quantum dots (i.e., the light emitted by the quantum dots is red) or green quantum dots (i.e., the light emitted by the quantum dots is green).

[0035] The focusing layer 120 is located on the side of the blue light source layer 110 facing away from the substrate 101. The focusing layer 120 includes a first focusing lens 121. Along the stacking direction of the blue light source layer 110 and the focusing layer 120, the first focusing lens 121 covers the first blue light source 111. The focusing layer 120 is used to focus the blue light emitted from the blue light source layer 110, so that more light can be incident on the corresponding quantum dots to ensure the light emission effect of the quantum dots. Therefore, the focusing layer 120 can help improve the utilization rate of the blue light source. In one possible implementation, the focusing layer 120 includes a plurality of focusing lenses. The focusing lenses have the functions of focusing and transmitting light, so that a larger proportion of the light emitted by the blue light source can be incident on the corresponding quantum dots, thereby stimulating the quantum dots to emit light. Some of the focusing lenses are the first focusing lenses 121. Along the stacking direction of the blue light source layer 110 and the light-collecting layer 120, the first light-collecting lens 121 covers the first blue light source 111. This means that along the stacking direction of the blue light source layer 110 and the light-collecting layer 120, the projection of the first light-collecting lens 121 covers the projection of the first blue light source 111. Therefore, the first light-collecting lens 121 is used to collect light from the first blue light source 111. To improve the focusing effect, the number of first blue light sources 111 and the number of first light-collecting lenses 121 are equal, and the positional arrangement of the first blue light sources 111 and the first light-collecting lenses 121 correspond one-to-one.

[0036] The quantum dot layer 130 is located on the side of the light-collecting layer 120 facing away from the substrate 101. The quantum dot layer 130 includes first quantum dots 131. Along the stacking direction of the blue light source layer 110 and the light-collecting layer 120, the first light-collecting lens 121 at least partially overlaps with the first quantum dot 131. The dimming layer 140 is located on the side of the quantum dot layer 130 facing away from the substrate 101. The dimming layer 140 includes a first dimming lens 141. Along the stacking direction of the blue light source layer 110 and the light-collecting layer 120, the first dimming lens 141 at least partially overlaps with the first quantum dot 131. Along the stacking direction of the blue light source layer 110 and the light-collecting layer 120, the first dimming lens 141 at least partially overlaps with the first quantum dot 131, meaning that along the stacking direction of the blue light source layer 110 and the light-collecting layer 120, the projection of the first dimming lens 141 partially overlaps or completely overlaps with the projection of the first quantum dot 131, where complete overlap includes the overlap of the projections of the two. In one possible implementation, the dimming layer 140 includes several dimming lenses, some of which are first dimming lenses 141. The first dimming lenses 141 are used to adjust the light emitted by the first quantum dot 131 to improve the display effect. The quantum dot layer 130 is used to improve the display color of the display panel 100. In one possible implementation, the quantum layer includes several quantum dots. When exposed to light, the quantum dots emit light, and the color of the light is determined by factors such as the material and size of the quantum dots. Some of the several quantum dots are first quantum dots 131. The color of the light emitted by the first quantum dot 131 after being excited by the light source may be red, green or blue. In a preferred embodiment, the color of the light emitted by the first quantum dot 131 after being excited by the light source is red or green.

[0037] In the embodiment of the present application, the display panel 100 includes a light-collecting layer 120. The first light-collecting lens 121 in the light-collecting layer 120 focuses light on the first blue light source 111, thereby allowing the first quantum dots 131 to receive more blue light. As a result, the first quantum dots 131 are excited to emit more light. Therefore, the display panel 100 provided by the embodiment of the present application ultimately improves the luminous efficiency of the pixels of the display panel 100. Furthermore, the display panel 100 also includes a dimming layer 140. The first dimming lens 141 adjusts the light emitted by the first quantum dots 131, thereby improving the display quality of the display panel. Furthermore, the presence of the light-collecting layer 120 significantly improves the utilization rate of the light emitted by the blue light source. Therefore, for the same display brightness, the overall light intensity of the blue light source required by the pixel can be adaptively reduced. That is, a lower light intensity from the blue light source can achieve the same display brightness, thereby reducing the power consumption of the blue light source driver circuit. Therefore, the display panel provided by the embodiment of the present application helps reduce the power consumption of the display panel.

[0038] like Figure 2 As shown, in one embodiment of the present application, the blue light source layer 110 further includes a second blue light source 112, the quantum dot layer 130 includes a transparent portion 132, and the dimming layer 140 includes a second dimming lens 142. Along the stacking direction of the blue light source layer 110 and the light-collecting layer 120, the second blue light source 112 and the transparent portion 132 at least partially overlap, and the second dimming lens 142 and the transparent portion 132 at least partially overlap.

[0039] In one possible implementation of this embodiment, some of the multiple blue light sources in the blue light source layer 110 serve as the second blue light source 112. The quantum dot includes a transparent portion 132. This transparent portion 132 means that the color of light entering the transparent portion 132 is the same as the color of light exiting the transparent portion 132. In one possible implementation, the transparent portion 132 can be a hollow portion. Providing the quantum dot layer 130 with the transparent portion 132 can save material for the quantum dot layer 130, thereby reducing costs. The second dimming lens 142 can adjust the light emitted by the second blue light source 112 to enhance the display quality of the blue pixels in the display panel 100.

[0040] like Figure 3a or Figure 3b As shown, in one embodiment of the present application, the blue light source layer 110 further includes a second blue light source 112, the quantum dot layer 130 includes blue quantum dots 133, and the dimming layer 140 includes a second dimming lens 142. Along the stacking direction of the blue light source layer 110 and the light-collecting layer 120, the second blue light source 112 and the blue quantum dots 133 at least partially overlap, and the second dimming lens 142 and the blue quantum dots 133 at least partially overlap. The color of the light emitted by the blue quantum dots 133 is blue. Figure 2 and Figure 3b The difference is that in the quantum dot layer 130, Figure 2 The transparent portion 132 is used to allow the light emitted by the second blue light source 112 to pass through. Figure 3b It uses blue quantum dots 133 to emit light.

[0041] like Figure 3b or Figure 4 or Figure 5 As shown, in one embodiment of the present application, the display panel 100 further includes a light splitting layer 150, which is located on the side of the blue light source layer 110 away from the substrate 101. The light splitting layer 150 includes a light splitting lens 151. The purpose of the light splitting layer 150 is to disperse the received light source. Figure 4 or Figure 5As shown, the blue light source layer 110 further includes a second blue light source 112, and the quantum dot layer 130 includes a transparent portion 132. Along the stacking direction of the blue light source layer 110 and the light-collecting layer 120, the light-collecting layer 120 and the second blue light source 112 do not overlap, while the dichroic lens 151 overlaps with the second blue light source 112, and the dichroic lens 151 overlaps with the transparent portion 132.

[0042] In a possible implementation, the beam splitter lens 151 includes a planar portion and a curved portion, wherein the planar portion is connected to the curved portion, and the curved portion is located on a side of the planar portion facing the substrate, and the curved portion is curved toward the planar portion.

[0043] In this embodiment, along the stacking direction of the blue light source layer 110 and the light-collecting layer 120, the light-collecting layer 120 and the second blue light source 112 do not overlap, meaning that no light-collecting lens is provided on the side of the second blue light source 112 facing the light-collecting layer 120. Along the stacking direction of the blue light source layer 110 and the light-collecting layer 120, the dichroic lens 151 overlaps with the second blue light source 112, and the dichroic lens 151 overlaps with the transparent portion 132. This means that along the stacking direction of the blue light source layer 110 and the light-collecting layer 120, the projection of the dichroic lens 151 partially or completely overlaps with the projection of the second blue light source 112, and the projection of the dichroic lens 151 partially or completely overlaps with the projection of the transparent portion 132. Therefore, the dichroic lens 151 disperses the light emitted by the second blue light source 112, and the dispersed light is received by the quantum dots adjacent to the transparent portion 132, allowing the quantum dots adjacent to the transparent portion 132 to receive more light, thereby improving the luminous effect of the quantum dots. That is, the dichroic lens 151 can compensate for the quantum dot light sources around the transparent portion 132 .

[0044] like Figure 2 The second blue light source 112 and the transparent portion 132 located on the side facing the light emitting surface, or as Figure 3a or Figure 3b The second blue light source 112 and the blue quantum dot 133 located on the side of the blue light source facing the light emitting surface form a blue pixel. Compared with the red pixel or the green pixel, the blue pixel has a higher luminous efficiency. Figure 3b or Figure 4 or Figure 5 As shown, the light sources of an appropriate amount of blue pixels can be split to compensate for the light sources of other pixels, that is, part of the light emitted by the second blue light source 112 will be dispersed by the splitter lens 151 to the quantum dots corresponding to the red pixels or green pixels.

[0045] like Figure 4As shown in a possible implementation, along the stacking direction of the blue light source layer 110 and the light collecting layer 120, the light splitting layer 150 is located between the blue light source layer 110 and the light collecting layer 120. The light splitting circuit of the light splitting layer 150 is as shown in FIG. Figure 4 As shown by the dotted line in Figure 4 As can be seen from the figure, after being split by the light splitting layer 150, the light emitted by the second blue light source 112 is partially split to the first quantum dot 131, partially split to the transparent portion 132, and partially split to the second quantum dot 134. The light splitting layer 150 is located between the blue light source layer 110 and the light focusing layer 120, which means that the light splitting layer 150 is closer to the blue light source layer 110. Therefore, light with a smaller emission angle can also reach the first quantum dot 131 or the second quantum dot 134, allowing more of the split light to be dispersed to the first quantum dot 131 or the second quantum dot 134.

[0046] like Figure 5 As shown, in one possible implementation, along the stacking direction of the blue light source layer 110 and the light-concentrating layer 120, the light-splitting layer 150 is located between the quantum dot layer 130 and the light-concentrating layer 120. The location of the light-splitting layer 150 between the quantum dot layer 130 and the light-concentrating layer 120 means that the light-splitting layer 150 is closer to the quantum dot layer 130, and the distance for the dispersed light to reach the quantum dots is shortened. Therefore, only light with a large emission angle can be dispersed to the first quantum dot 131 and the second quantum dot 134, avoiding overcompensation for the first quantum dot 131 and the second quantum dot 134.

[0047] It should be noted that in another possible implementation, the transparent part 132 can be replaced by the blue quantum dots 133. At this time, after being split by the splitting layer 150, the light emitted by the second blue light source 112 is partially split to the first quantum dots 131, partially split to the blue quantum dots 133, and partially flows to the second quantum dots 134.

[0048] like Figures 6a to 6c As shown, in one possible implementation, the light-collecting layer 120 further includes a second light-collecting lens 122. Along the stacking direction of the blue light source layer 110 and the light-collecting layer 120, the second light-collecting lens 122 covers the second blue light source 112. This means that, along the stacking direction of the blue light source layer 110 and the light-collecting layer 120, the projection of the second light-collecting lens 122 covers the projection of the second blue light source 112. Therefore, the second light-collecting lens 122 is used to collect light from the second blue light source 112, thereby increasing the total amount of light reaching the quantum layer portion corresponding to the second blue light source 112 (e.g., the transparent portion 132 or the blue quantum dots 133), thereby improving the display brightness of the pixels illuminated by the second blue light source 112.

[0049] Figure 6b or Figure 6cIn the embodiment, the display panel 100 includes a light splitting layer 150, and the light splitting layer 150 includes a light splitting lens 151. Along the stacking direction of the blue light source layer 110 and the quantum layer, the light splitting lens 151 overlaps with the second blue light source 112. Figure 6b The light-splitting layer 150 is located between the light-collecting layer 120 and the quantum dot layer 130. Figure 6c The intermediate light-splitting layer 150 is located between the light-collecting layer 120 and the blue light source layer 110 .

[0050] like Figure 7 As shown, in one embodiment of the present application, the first focusing lens 121 includes a curved portion 1211 and a bottom 1212, the curved portion 1212 is connected to the bottom 1211, the curved portion 1212 of the first focusing lens 121 is located on the side of the bottom 1211 of the first focusing lens 121 away from the substrate 101, and the curved portion 1212 of the first focusing lens 121 is curved toward the bottom.

[0051] In this embodiment, the curved portion of the first condensing lens 121 is located on the side of the bottom of the first condensing lens 121 away from the substrate 101, and the curved portion of the first condensing lens 121 is bent toward the bottom, which can effectively condense light.

[0052] In a possible implementation of this embodiment, taking the blue light source layer 110 being located below the focusing layer 120 as an example, the first focusing lens 121 can be a convex lens, and one side of the convex lens is a plane, the plane faces the blue light source side, and the curved surface faces the quantum dot layer 130, thereby playing a focusing role.

[0053] like Figures 7 to 10 As shown, in a possible implementation, the orthographic projection of the first condensing lens 121 on the substrate 101 is rectangular, circular, or elliptical.

[0054] For example, the orthographic projection of the first condensing lens 121 on the substrate 101 is a rectangle including: its bottom 1211 is Figure 7 The rectangular plane shown or Figure 8 The first condenser lens 121 is a rectangular parallelepiped as shown, and the curved surface 1212 is a cylindrical surface. The orthographic projection of the first condenser lens 121 on the substrate 101 is a circle including: its bottom 1211 is Figure 9 The circular plane shown or Figure 10 The first focusing lens 121 is a cylindrical shape, and the curved surface 1212 is a spherical surface. The orthographic projection of the first focusing lens 121 on the substrate 101 is an ellipse. The bottom 1211 is Figure 9 The elliptical plane shown or Figure 10 The curved portion 1212 is an ellipsoidal surface.

[0055] In this implementation, the orthographic projection of the first condensing lens 121 on the substrate 101 is rectangular, circular, or elliptical, which helps to improve the overall compatibility and applicability of the product.

[0056] In one embodiment of the present application, the first dimming lens 141 includes a curved portion and a bottom. The curved portion of the first dimming lens 141 is connected to the bottom of the first dimming lens 141. The curved portion of the first dimming lens 141 is located on the side of the bottom of the first dimming lens 141 facing the substrate 101, and the curved portion of the first dimming lens 141 is bent toward the bottom of the first dimming lens 141.

[0057] In one possible implementation, taking the substrate 101 as an example, located below the blue light source layer 110, the first dimming lens 141 can be an inverted convex lens with one flat surface and one curved surface. The curved surface faces the substrate 101, while the flat surface faces the light-emitting side. This can adjust the light emitted by the first quantum dots 131, resulting in a more evenly distributed light and, in turn, improving the display quality of the display panel 100.

[0058] In one possible implementation, the shape of the first dimming lens 141 can refer to the shape of the first condenser lens 121. For example, the orthographic projection of the first dimming lens 141 on the substrate 101 is rectangular, circular, or elliptical. The orthographic projection of the first dimming lens 141 on the substrate 101 is rectangular, circular, or elliptical, which helps improve the overall compatibility and applicability of the product.

[0059] like Figure 6a As shown, in one embodiment of the present application, the orthographic projection of the first condensing lens 121 on the substrate 101 is the same as the orthographic projection of the first dimming lens 141 on the substrate 101 .

[0060] In a possible implementation, the orthographic projection of the first condensing lens 121 on the substrate 101 is the same as the orthographic projection of the first dimming lens 141 on the substrate 101 , including that they have the same shape and the same size.

[0061] In the embodiment of the present application, the orthographic projection of the first condensing lens 121 on the substrate 101 is the same as the orthographic projection of the second dimming lens 142 on the substrate 101 , which helps to reduce the difficulty of the process.

[0062] In one embodiment of the present application, the orthographic projection of the first condensing lens 121 on the substrate 101 is different from the orthographic projection of the first dimming lens 141 on the substrate 101 .

[0063] In the embodiment of the present application, the orthographic projection of the first condenser lens 121 on the substrate 101 and the orthographic projection of the first dimming lens 141 on the substrate 101 are different from each other, including: having different shapes or having the same shape but different areas. For example, in one possible implementation, the orthographic projection of the first condenser lens 121 on the substrate 101 is rectangular, and the orthographic projection of the first dimming lens 141 on the substrate 101 is elliptical or circular.

[0064] In the embodiment of the present application, the orthographic projection of the first focusing lens 121 on the substrate 101 is different from the orthographic projection of the first dimming lens 141 on the substrate 101, which is conducive to achieving differentiation between the focusing layer 120 and the dimming layer 140, thereby facilitating obtaining more uniform light output.

[0065] In one embodiment of the present application, the size of the orthographic projection of the first condensing lens 121 on the substrate 101 and the size of the orthographic projection of the first dimming lens 141 on the substrate 101 may be the same or different.

[0066] like Figure 11a or Figure 11b As shown, in one embodiment of the present application, the distance between the center line of the first condensing lens 121 and the center line of the first dimming lens 141 is greater than zero.

[0067] like Figure 11a As shown, the center line of the first condensing lens 121 is located on the first side of the first dimming lens 141. Figure 11b As shown, the center line of the first condensing lens 121 is located on the second side of the first dimming lens 141. The first side is opposite to the second side, for example, the first side is the right side and the second side is the left side.

[0068] In this embodiment, the center of the orthographic projection of the first condenser lens 121 on the substrate 101 is located on its centerline, and the centerline of the first condenser lens 121 is perpendicular to the plane of the substrate 101. The center of the orthographic projection of the first dimming lens 141 on the substrate 101 is located on its centerline, and the centerline of the first dimming lens 141 is perpendicular to the plane of the substrate 101. The distance between the centerlines of the first condenser lens 121 and the first dimming lens 141 is greater than zero, indicating that the first dimming lens 141 and the first condenser lens 121 are offset. Figure 11c This is a simulation diagram of light brightness of this embodiment, where blue represents low display brightness, green represents medium display brightness, and yellow or red represents high display brightness. Figure 11cIt can be concluded that the visual range is not symmetrical about the left and right, so that different viewing angles corresponding to different left and right positions can be achieved: for example, the viewing angle range of the main driver is different from the viewing angle range of the co-driver. Therefore, this embodiment can achieve asymmetric light pattern adjustment, so as to meet the needs of asymmetric viewing angles, such as the needs of vehicle-mounted asymmetric viewing angles, such as the vehicle's central control display needs or HUD (Head-up-Display). It should be noted that in the embodiment of the present application, the upper and lower asymmetry of the viewing angle and the asymmetry about other directions (such as the direction with an acute angle to the upper and lower directions) can also be achieved by adjusting the asymmetric orientation of the first dimming lens 141 and the first focusing lens 121.

[0069] like Figure 12 As shown, in one embodiment of the present application, the size of the first condensing lens 121 is larger than the size of the second condensing lens 122 . And / or the size of the first dimming lens 141 is larger than the size of the second dimming lens 142 .

[0070] In one possible implementation of this embodiment, the first condenser lens 121 is larger than the second condenser lens 122; and / or the first dimming lens 141 is larger than the second dimming lens 142. The second blue light source 112 is the light source for blue pixels, and blue pixels have higher luminous efficiency. Therefore, the size of the second blue light source 112 can be appropriately reduced without affecting the display effect. Reducing the size of the second blue light source 112, the second condenser lens 122, or the first dimming lens 141 can save space and production materials, thereby reducing costs and increasing pixel density.

[0071] like Figure 12 As shown, in one embodiment of the present application, the size of the first blue light source 111 is larger than the size of the second blue light source 112 ; and / or the size of the first quantum dot 131 is larger than the size of the transparent portion 132 .

[0072] like Figure 13As shown, in this embodiment of the present application, the blue light source layer 110 further includes a third blue light source 113. The light-concentrating layer 120 further includes a third light-concentrating lens 123. Along the stacking direction of the blue light source layer 110 and the light-concentrating layer 120, the third light-concentrating lens 123 covers the third blue light source 113. That is, along the stacking direction of the blue light source layer 110 and the light-concentrating layer 120, the projection of the third light-concentrating lens 123 covers the projection of the third blue light source 113. The quantum dot layer 130 further includes second quantum dots 134. The light emitted by the second quantum dots 134 is red, and the light emitted by the first quantum dots 131 is green. Along the stacking direction of the blue light source layer 110 and the light-concentrating layer 120, the third light-concentrating lens 123 at least partially overlaps with the second quantum dots 134; that is, along the stacking direction of the blue light source layer 110 and the light-concentrating layer 120, the projection of the third light-concentrating lens 123 partially or completely overlaps with the projection of the second quantum dots 134. The dimming layer 140 also includes a third dimming lens 143. Along the stacking direction of the blue light source layer 110 and the light-collecting layer 120, the third dimming lens 143 at least partially overlaps with the second quantum dots 134; that is, along the stacking direction of the blue light source layer 110 and the light-collecting layer 120, the projection of the third dimming lens 143 partially or completely overlaps with the projection of the second quantum dots 134. The size of the first light-collecting lens 121 is smaller than or equal to that of the third light-collecting lens 123, and / or the size of the first dimming lens 141 is smaller than or equal to that of the third light-collecting lens 143.

[0073] In this embodiment, since the red pixel of the display panel 100 has the lowest luminous efficiency, its size needs to be the largest to ensure the light extraction effect. In this embodiment, the size of the first blue light source 111 is less than or equal to the size of the third blue light source 113. The size of the first focusing lens 121 is less than or equal to the size of the third focusing lens 123, and / or the size of the first dimming lens 141 is less than or equal to the size of the third dimming lens 143. This design realizes the design of the corresponding pixel size according to the different light extraction efficiencies of red, green, and blue colors, so as to achieve a uniform display effect and ultimately improve the overall display effect of the display panel.

[0074] In one embodiment of the present application, the size of the first blue light source 111 is smaller than or equal to the size of the third blue light source 113 ; and / or the size of the first quantum dot 131 is smaller than or equal to the size of the second quantum dot 134 .

[0075] In one embodiment of the present application, the blue light source layer 110 further includes a third blue light source 113. The light-concentrating layer 120 further includes a third light-concentrating lens 123. Along the stacking direction of the blue light source layer 110 and the light-concentrating layer 120, the third light-concentrating lens 123 covers the third blue light source 113. The quantum dot layer 130 further includes a second quantum dot 134. The color of light emitted by the second quantum dot 134 is different from the color of light emitted by the first quantum dot 131. Along the stacking direction of the blue light source layer 110 and the light-concentrating layer 120, the third light-concentrating lens 123 at least partially overlaps with the second quantum dot 134. The dimming layer 140 further includes a third dimming lens 143. Along the stacking direction of the blue light source layer 110 and the light-concentrating layer 120, the third dimming lens 143 at least partially overlaps with the second quantum dot 134. The orthographic projection shape of the first condensing lens 121 on the substrate 101 is different from the orthographic projection shape of the third condensing lens 123 on the substrate 101 , and / or the orthographic projection shape of the first dimming lens 141 on the substrate 101 is different from the orthographic projection shape of the third dimming lens 143 on the substrate 101 .

[0076] In one possible implementation of this embodiment, one of the first quantum dot 131 and the second quantum dot 134 emits red light, and the other emits green light. The orthographic projection shape of the first condensing lens 121 on the substrate 101 is different from the orthographic projection shape of the third condensing lens 123 on the substrate 101, and / or the orthographic projection shape of the first dimming lens 141 on the substrate 101 is different from the orthographic projection shape of the third dimming lens 143 on the substrate 101. This design can increase the difference between the condensing lens and the dimming lens, thereby achieving differentiated focusing or dimming, and can facilitate the configuration of the appropriate condensing lens or dimming lens according to light color requirements.

[0077] like Figure 14 As shown, an embodiment of the present application further provides a display device 200 , comprising the display panel 100 provided by any of the aforementioned embodiments or implementations.

[0078] In the display device 200 provided in the embodiment of the present application, the pixel units of the display panel 100 have good light extraction effects.

[0079] The various embodiments or implementations of this specification may be combined with one another as long as no technical conflicts exist. Technical conflicts refer to technical features that contradict or cannot coexist within the same embodiment. In other words, the various embodiments or implementations of this specification may be combined as long as they are technically feasible and logically reasonable.

[0080] The same or similar parts between the various embodiments or implementations in this specification can be referenced to each other.

Claims

1. A display panel, characterized in that: include: substrate; A blue light source layer is located on one side of the substrate, and the blue light source layer includes a first blue light source; a light-collecting layer, the light-collecting layer being located on a side of the blue light source layer facing away from the substrate, the light-collecting layer comprising a first light-collecting lens, and covering the first blue light source along a stacking direction of the blue light source layer and the light-collecting layer; a quantum dot layer located on a side of the light-concentrating layer facing away from the substrate, the quantum dot layer including first quantum dots, and the first focusing lens at least partially overlapping the first quantum dots along a stacking direction of the blue light source layer and the light-concentrating layer; The dimming layer is located on a side of the quantum dot layer away from the substrate. The dimming layer includes a first dimming lens. Along the stacking direction of the blue light source layer and the focusing layer, the first dimming lens at least partially overlaps with the first quantum dot.

2. The display panel according to claim 1, wherein: The blue light source layer also includes a second blue light source, the quantum dot layer includes a transparent portion, and the dimming layer includes a second dimming lens; along the stacking direction of the blue light source layer and the focusing layer, the second blue light source at least partially overlaps with the transparent portion, and the second dimming lens at least partially overlaps with the transparent portion.

3. The display panel according to claim 1, wherein: The invention also includes a spectroscopic layer, which is located on the side of the blue light source layer away from the substrate, and the spectroscopic layer includes a spectroscopic lens; the blue light source layer also includes a second blue light source, and the quantum dot layer includes a transparent portion; along the stacking direction of the blue light source layer and the focusing layer, the focusing layer and the second blue light source do not overlap, the spectroscopic lens overlaps with the second blue light source, and the spectroscopic lens overlaps with the transparent portion.

4. The display panel according to claim 3, wherein: Along the stacking direction of the blue light source layer and the light gathering layer, the light splitting layer is located between the blue light source layer and the light gathering layer.

5. The display panel according to claim 2, wherein: The light-collecting layer further includes a second light-collecting lens. Along the stacking direction of the blue light source layer and the light-collecting layer, the second light-collecting lens covers the second blue light source.

6. The display panel according to claim 1, wherein: The first condensing lens includes a curved portion and a bottom portion, wherein the curved portion is connected to the bottom portion, the curved portion is located on a side of the bottom portion away from the substrate, and the curved portion is curved toward the bottom portion.

7. The display panel according to claim 6, wherein: The orthographic projection of the first condensing lens on the substrate is rectangular, circular or elliptical.

8. The display panel according to claim 1, wherein: The first dimming lens includes a curved portion and a bottom portion, wherein the curved portion is connected to the bottom portion, the curved portion is located on a side of the bottom portion facing the substrate, and the curved portion is curved toward the bottom portion.

9. The display panel according to claim 8, wherein: The orthographic projection of the first dimming lens on the substrate is rectangular, circular or elliptical.

10. The display panel according to claim 1, wherein The orthographic projection of the first condensing lens on the substrate is the same as the orthographic projection of the first dimming lens on the substrate.

11. The display panel according to claim 1, wherein The orthographic projection of the first condensing lens on the substrate is different from the orthographic projection of the first dimming lens on the substrate.

12. The display panel according to claim 1, wherein A distance between a center line of the first condensing lens and a center line of the first dimming lens is greater than zero.

13. The display panel according to claim 5, wherein: The size of the first condensing lens is larger than that of the second condensing lens; and / or the size of the first dimming lens is larger than that of the second dimming lens.

14. The display panel according to claim 1, wherein The blue light source layer further includes a third blue light source; The light-collecting layer further includes a third light-collecting lens, and along the stacking direction of the blue light source layer and the light-collecting layer, the third light-collecting lens covers the third blue light source; The quantum dot layer further includes a second quantum dot, the second quantum dot emits red light, and the first quantum dot emits green light; along the stacking direction of the blue light source layer and the focusing layer, the third focusing lens at least partially overlaps with the second quantum dot; The dimming layer further includes a third dimming lens, and along the stacking direction of the blue light source layer and the light focusing layer, the third dimming lens at least partially overlaps with the second quantum dots; The size of the first focusing lens is smaller than or equal to the size of the third focusing lens, and / or the size of the first dimming lens is smaller than or equal to the size of the third dimming lens.

15. The display panel according to claim 1, wherein The blue light source layer further includes a third blue light source; The light-collecting layer further includes a third light-collecting lens, and along the stacking direction of the blue light source layer and the light-collecting layer, the third light-collecting lens covers the third blue light source; The quantum dot layer further includes a second quantum dot, the color of light emitted by the second quantum dot is different from the color of light emitted by the first quantum dot; along the stacking direction of the blue light source layer and the focusing layer, the third focusing lens and the second quantum dot at least partially overlap; The dimming layer further includes a third dimming lens, and along the stacking direction of the blue light source layer and the light focusing layer, the third dimming lens at least partially overlaps with the second quantum dots; The orthographic projection shape of the first focusing lens on the substrate is different from the orthographic projection shape of the third focusing lens on the substrate, and / or the orthographic projection shape of the first dimming lens on the substrate is different from the orthographic projection shape of the third dimming lens on the substrate.

16. A display device, characterized in that: The display panel comprises the display panel according to any one of claims 1 to 15.

Images