Light-emitting module, display panel, and display device
By introducing a light shielding layer and a light-concentrating structure into a high-resolution glass-based LCD, combined with a reflective structure, the problem of low light energy utilization is solved, and the maximum utilization of light energy and the improvement of display effect is achieved.
Patent Information
- Application Number
- CN202310462991.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-04-26
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2043-04-26
AI Technical Summary
In high-resolution glass-based LCDs, due to the process limits of line widths such as ITO and BM, the light transmitting area is much smaller than the light opacity, resulting in a decrease in the opening rate and extremely low light efficiency. Conventional backlight sources cause light energy to be blocked and absorbed by BM, increase in power consumption, and low light energy utilization.
The light shielding layer and light-concentrating structure are designed. The light shielding layer has a light-transmitting area. The light concentrating structure is arranged on the side of the light shielding layer close to the light source. The light emitted by the light source is concentrated through the light-concentrating structure and exits from the light-transmitting area. Combined with the reflective structure, the light ray that does not directly enter the light-transmitting area is reflected, thereby improving the light energy utilization rate.
Through the combination of the light-concentrating structure and the reflective structure, the effective utilization of light energy is improved, the power consumption is reduced, the maximum utilization of light energy is achieved, and the transmittance and display effect of the panel are improved.
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Figure CN116466518B_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the field of display technology, and in particular relates to a light-emitting module, a display panel and a display device. Background Art
[0002] When the resolution of glass-based LCDs reaches a certain level, due to the process limitations of ITO and BM line widths, the light-transmitting area becomes much smaller than the opaque area. This causes the aperture ratio to drop sharply compared to lower-resolution LCDs, resulting in extremely low light efficiency. In this situation, if paired with a conventional backlight, most of the light energy is blocked and absorbed by the BM, leaving only a small amount of light passing through to provide energy for the display. This results in increased module power consumption, wasted light energy, and low light energy utilization. Summary of the Invention
[0003] The purpose of the embodiments of the present invention is to provide a light emitting module, a display panel and a display device to solve the problem of low light energy utilization efficiency of a light source.
[0004] In a first aspect, an embodiment of the present invention provides a light-emitting module, comprising:
[0005] substrate;
[0006] a light source, the light source being disposed on one side of the substrate;
[0007] a light-shielding layer, the light-shielding layer being disposed on a side of the light source away from the substrate, the light-shielding layer having a light-transmitting area;
[0008] A light-concentrating structure is provided on a side of the light-shielding layer close to the light source, and the light emitted by the light source is incident on the light-concentrating structure. The light incident on the light-concentrating structure is emitted from the exit surface of the light-concentrating structure to the light-transmitting area and then emitted from the light-transmitting area.
[0009] Furthermore, the light-shielding layer has a plurality of light-transmitting areas distributed at intervals, and orthographic projections of at least two of the light-transmitting areas on the substrate are arranged around the periphery of the light source.
[0010] Furthermore, orthographic projections of at least two of the light-transmitting areas on the substrate are evenly spaced around the periphery of the light source.
[0011] Furthermore, the light-focusing structure is a self-focusing lens.
[0012] Furthermore, the optical axis of the light-concentrating structure is perpendicular to the light-shielding layer, one light-concentrating structure is provided in each light-transmitting area, and the orthographic projection of the emitting surface of the light-concentrating structure on the light-shielding layer covers the light-transmitting area.
[0013] Furthermore, the light emitting module further includes:
[0014] A reflective structure, wherein the light emitted by the light source is projected onto a reflective surface of the reflective structure, and the light reflected by the reflective surface is incident on the focusing structure.
[0015] Furthermore, the reflective structure is arranged between the light shielding layer and the light source.
[0016] Furthermore, the reflective structure is in a pyramidal shape, and the bottom surface of the reflective structure is arranged close to the light shielding layer.
[0017] Furthermore, the axis of the reflective structure is perpendicular to the light-shielding layer.
[0018] Furthermore, a plurality of light-transmitting areas are distributed around the periphery of each of the reflective structures.
[0019] Furthermore, a plurality of light-transmitting areas are evenly arranged on the periphery of each of the reflective structures.
[0020] Furthermore, the reflective structure and the light source are spaced apart.
[0021] Furthermore, the reflective structure and the light source are spaced apart by a distance of 0.05-0.2 mm in a direction perpendicular to the substrate.
[0022] In a second aspect, an embodiment of the present invention provides a display panel, including:
[0023] The light-emitting module described in the above embodiment.
[0024] In a third aspect, an embodiment of the present invention provides a display device, including:
[0025] The display panel described in the above embodiment.
[0026] In the light-emitting module of the embodiment of the present invention, the light-shielding layer is arranged on the side of the light source away from the substrate, the light-shielding layer has a light-transmitting area, and the light-concentrating structure is arranged on the side of the light-shielding layer close to the light source. The light emitted by the light source is incident on the light-concentrating structure, and the light incident on the light-concentrating structure is emitted from the exit surface of the light-concentrating structure to the light-transmitting area and then exits from the light-transmitting area. The light emitted by the light source can be concentrated by the light-concentrating structure, and the light-concentrating structure emits the collected light from the exit surface of the light-concentrating structure to the light-transmitting area and then exits from the light-transmitting area. Therefore, after being concentrated by the light-concentrating structure, more light emitted by the light source can be emitted from the light-transmitting area, thereby improving the effective utilization rate of the light emitted by the light source, reducing power consumption, reducing light waste, and maximizing the utilization of light energy. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 1 is a structural diagram of a light-emitting module according to an embodiment of the present invention;
[0028] Figure 2 A schematic diagram of light emitted from the light-concentrating structure in an embodiment of the present invention being emitted from the light-transmitting area;
[0029] Figure 3 is a schematic diagram of the light-transmitting area on the light-shielding layer relative to the light-concentrating structure;
[0030] Figure 4 FIG. 4 is another schematic diagram of the light-transmitting area on the light-shielding layer relative to the light-concentrating structure.
[0031] Reference numerals
[0032] substrate 10;
[0033] Light source 20;
[0034] Light shielding layer 30;
[0035] Concentrating structure 40;
[0036] light-transmitting area 50;
[0037] Reflective structure 60. DETAILED DESCRIPTION
[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.
[0039] The terms "first," "second," and the like in the specification and claims of the present invention are used to distinguish similar objects and are not intended to describe a particular order or precedence. It should be understood that such terms are interchangeable where appropriate, so that embodiments of the present invention can be implemented in sequences other than those illustrated or described herein. Furthermore, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the connected objects are in an "or" relationship.
[0040] The following is combined with Figures 1 to 4 As shown, the light-emitting module, display panel and display device provided by the embodiments of the present invention are described in detail through specific embodiments and their application scenarios.
[0041] like Figures 1 to 4As shown, the light-emitting module of an embodiment of the present invention includes: a substrate 10, a light source 20, a shading layer 30, and a focusing structure 40. The light source 20 is arranged on one side of the substrate 10. The light source can be an LED light source. The number of light sources 20 can be one or more. When the number of light sources 20 is multiple, the multiple light sources 20 can be distributed at intervals on one side surface of the substrate 10. The multiple light sources 20 can be distributed in an array on the one side surface of the substrate 10.
[0042] The light shielding layer 30 can be disposed on a side of the light source 20 away from the substrate 10. The light shielding layer 30 can be spaced apart from the substrate 10 or can be parallel to the substrate 10. The light shielding layer 30 can be a black matrix (BM) layer. The light shielding layer 30 has a light-transmitting area 50. The light shielding layer 30 can have one or more light-transmitting areas 50. When there are multiple light-transmitting areas 50, the multiple light-transmitting areas 50 can be spaced apart on the light shielding layer 30, or the multiple light-transmitting areas 50 can be distributed in an array on the light shielding layer 30. The orthographic projections of the light sources 20 on the light shielding layer 30 can be spaced apart from the light-transmitting areas 50. Multiple light-transmitting areas 50 can be distributed around the orthographic projection of each light source 20 on the light shielding layer 30. Multiple light-transmitting areas 50 can be evenly distributed around the orthographic projection of each light source 20 on the light shielding layer 30. For example, four light-transmitting areas 50 can be distributed around the orthographic projection of each light source 20 on the light shielding layer 30. The light-transmitting area 50 of the light-shielding layer 30 can be a hollow area or a light-transmitting material area. The light-transmitting area 50 can be circular, elliptical, polygonal, etc. For example, the light-transmitting area 50 can be circular or rectangular. The size and specific shape of the light-transmitting area 50 can be reasonably selected according to actual needs.
[0043] The focusing structure 40 can be arranged on the side of the shading layer 30 close to the light source 20, and the focusing structure 40 can be arranged in the area between the shading layer 30 and the light source 20. The light emitted by the light source 20 can be incident on the focusing structure 40, and the light incident on the focusing structure 40 is emitted from the exit surface of the focusing structure 40 to the light-transmitting area 50 and emitted from the light-transmitting area 50. Through the focusing structure 40, the light emitted by the light source 20 can be emitted from the exit surface of the focusing structure 40 to the light-transmitting area 50 and emitted from the light-transmitting area 50, so that more light emitted by the light source 20 can be emitted from the light-transmitting area 50.
[0044] In the light-emitting module of the embodiment of the present invention, the light-shielding layer 30 is arranged on the side of the light source 20 away from the substrate 10. The light-shielding layer 30 has a light-transmitting area. The light-concentrating structure is arranged on the side of the light-shielding layer 30 close to the light source 20. The light emitted by the light source 20 is incident on the light-concentrating structure 40. The light incident on the light-concentrating structure 40 is emitted from the exit surface of the light-concentrating structure 40 to the light-transmitting area and then exits from the light-transmitting area. The light emitted by the light source can be concentrated by the light-concentrating structure. The light-concentrating structure emits the collected light from the exit surface of the light-concentrating structure 40 to the light-transmitting area and then exits from the light-transmitting area. After being concentrated by the light-concentrating structure, more light emitted by the light source can be emitted from the light-transmitting area, thereby improving the effective utilization rate of the light emitted by the light source, reducing power consumption, reducing light waste, and realizing maximum utilization of light energy. Most of the light energy can pass through the panel, which greatly improves the panel transmittance and achieves a more delicate and brighter ultimate display effect.
[0045] In some embodiments, the light-shielding layer 30 may have a plurality of light-transmitting areas 50 that are spaced apart. The light-shielding layer 30 may have a plurality of light-transmitting areas 50 that are evenly spaced apart. The orthographic projections of at least two light-transmitting areas 50 on the substrate 10 are arranged around the periphery of the light source 20. The orthographic projections of the plurality of light-transmitting areas 50 on the substrate 10 may be evenly spaced around the periphery of the light source 20. For example, the orthographic projections of the four light-transmitting areas 50 on the substrate 10 may be evenly spaced around the periphery of the light source 20, so that the light emitted by the light source 20 can be concentrated by the focusing structure. The focusing structure emits the collected light from the exit surface of the focusing structure 40 to the corresponding four light-transmitting areas and emits it from the light-transmitting areas, so that the light emitted by the light source can be emitted more from the light-transmitting areas after being concentrated by the focusing structure, thereby improving the effective utilization rate of the light emitted by the light source.
[0046] In other embodiments, the orthographic projections of at least two light-transmitting areas 50 on the substrate 10 are evenly spaced around the periphery of the light source 20, so that the light emitted by the light source 20 can be evenly emitted from the corresponding light-transmitting areas after being concentrated by the focusing structure, so that the light emitted by the light source can be evenly emitted from the light-transmitting areas after being concentrated by the focusing structure.
[0047] In an embodiment of the present invention, the focusing structure 40 can be a self-focusing lens. The self-focusing lens is also called a gradient refractive index lens, which refers to a cylindrical optical lens whose refractive index distribution is gradually changing along the radial direction, and has focusing and imaging functions. When light propagates in the air and encounters different media, its propagation direction will change due to the different refractive indices of the media. Traditional lens imaging is achieved by controlling the curvature of the lens surface and using the resulting optical path difference to converge the light into one point. The difference between a self-focusing lens and an ordinary lens is that the refractive index distribution of the self-focusing lens material gradually decreases along the radial direction, and the self-focusing lens material can refract the light transmitted along the axial direction, so that the outgoing light is smoothly and continuously converged to one point. The light emitted by the light source 20 is collected by the self-focusing lens and then emitted from the exit surface of the self-focusing lens and from the light-transmitting area, thereby improving the utilization rate of light. As Figure 1 and Figure 2 As shown, the light emitted by the light source can be incident from the focal position of the self-focusing lens, emitted from the bottom surface of the self-focusing lens to the light-transmitting area, and emitted from the light-transmitting area.
[0048] In some embodiments, the optical axis of the light-concentrating structure 40 can be perpendicular to the light-shielding layer 30, and each light-transmitting area 50 can be provided with a light-concentrating structure 40. The orthographic projection of the exit surface of the light-concentrating structure 40 on the light-shielding layer 30 can cover the light-transmitting area 50, so that more light can cover the light-transmitting area 50. The light-shielding layer 30 can be flat, and the light-transmitting area 50 can be planar. The exit surface of the light-concentrating structure 40 can be parallel to the light-transmitting area 50 of the light-shielding layer 30. The orthographic projection of the exit surface of the light-concentrating structure 40 on the light-shielding layer 30 can cover the light-transmitting area 50. The exit surface of the light-concentrating structure 40 and the light-transmitting area of the light-shielding layer 30 can be arranged in contact with each other, so that more light emitted from the exit surface of the light-concentrating structure 40 can be emitted from the light-transmitting area 50, thereby improving light utilization.
[0049] In some embodiments, the light-emitting module may further include: a reflective structure 60, wherein the light emitted by the light source 20 is projected onto the reflective surface of the reflective structure 60, which may be the outer surface of the reflective structure 60, and the light reflected by the reflective surface is incident on the focusing structure 40. The light emitted by the light source 20 can be reflected by the reflective surface of the reflective structure 60, and the light reflected by the reflective surface of the reflective structure 60 can be incident on the incident surface of the focusing structure. The light incident on the incident surface of the focusing structure can be concentrated by the focusing structure, and the light concentrated by the focusing structure can be emitted from the exit surface of the focusing structure to the light-transmitting area and emitted from the light-transmitting area, so that the light emitted by the light source can be reflected by the reflective structure 60 and concentrated by the focusing structure, and can be emitted from the light-transmitting area more, thereby improving the utilization rate of light. The reflective surface of the reflective structure 60 can be coated with a reflective material coating to improve the reflection effect of the reflective surface of the reflective structure 60.
[0050] In some embodiments of the present invention, the reflective structure 60 can be arranged between the shading layer 30 and the light source 20, and the reflective structure 60 and the shading layer 30 can be spaced apart in a direction perpendicular to the shading layer 30. The reflective structure 60 and the light source 20 can be spaced apart in a direction perpendicular to the shading layer 30, so that the light emitted by the light source 20 is projected onto the reflective surface of the reflective structure 60, so that the light reflected by the reflective surface of the reflective structure 60 can be incident on the focusing structure, and the light focused by the focusing structure is emitted from the exit surface of the focusing structure to the light-transmitting area and emitted from the light-transmitting area, so that more light emitted by the light source can be emitted from the light-transmitting area, thereby improving the utilization rate of light.
[0051] In some embodiments, the shape of the reflective structure 60 can be a pyramid, the bottom surface of the reflective structure 60 can be set close to the shading layer 30, the bottom surface of the reflective structure 60 can be set parallel to the shading layer 30, the bottom surface of the reflective structure 60 can be set at intervals from the shading layer 30, the top of the reflective structure 60 can be set toward the light source 20, the axis of the reflective structure 60 can be perpendicular to the substrate 10, the positive projection of the top end of the reflective structure 60 on the substrate 10 can be located in the central area of the light source 20, the positive projection of the bottom surface of the reflective structure 60 on the substrate 10 can cover the light source 20, and the side of the reflective structure 60 can be a reflective surface, so that the light emitted by the light source 20 is projected onto the reflective surface of the reflective structure 60, so that the reflective surface can better reflect the light emitted by the light source 20, so that more light can be incident on the focusing structure, so that more light emitted by the light source can be emitted from the light-transmitting area, thereby improving the utilization rate of light. The bottom surface of the focusing structure 40 is a side surface close to the substrate 10. The bottom surface of the focusing structure 40 can be in the plane where the bottom surface of the reflective structure 60 is located. The bottom surface of the reflective structure 60 and the bottom surface of the focusing structure 40 can be separated by a certain distance in the direction perpendicular to the shading layer 30. The specific spacing distance can be reasonably selected according to actual conditions.
[0052] Light deflection can be achieved by using a self-focusing lens. A self-focusing lens can be added below the light-transmitting area of the light-shielding layer 30. The positive projection of the focusing structure 40 on the light-shielding layer 30 can cover the light-transmitting area of the light-shielding layer 30, ensuring that the collected light can fill the light-transmitting area of the light-shielding layer 30. At the same time, in order to make the light collected by the self-focusing lens pass through the light-transmitting area of the light-shielding layer 30 as much as possible, the light-transmitting area of the light-shielding layer 30 can be adapted to the self-focusing lens, such as Figure 3 and Figure 4As shown, the light-transmitting area of the light-shielding layer 30 can be square or octagonal, and the orthographic projection of the light-concentrating structure 40 on the light-shielding layer 30 can be circular. The orthographic projection of the light-concentrating structure 40 on the light-shielding layer 30 can cover the light-transmitting area of the light-shielding layer 30. It can be seen that the octagonal light-transmitting area has a higher light energy utilization rate than the square light-transmitting area. The orthographic projection of the light-concentrating structure 40 on the light-shielding layer 30 can be circular, and the light-transmitting area 50 can be circular. The diameter of the orthographic projection of the light-concentrating structure 40 on the light-shielding layer 30 can be equal to the diameter of the light-transmitting area of the light-shielding layer 30. The orthographic projection of the light-concentrating structure 40 on the light-shielding layer 30 and the light-transmitting area of the light-shielding layer 30 can overlap, so that more light emitted from the light-concentrating structure 40 is emitted from the light-transmitting area, resulting in higher light utilization rate.
[0053] Optionally, the axis of the reflective structure 60 can be perpendicular to the shading layer 30, so that the light emitted by the light source 20 can be evenly projected onto the reflective surface of the reflective structure 60, so that the reflective surface can more evenly reflect the light emitted by the light source 20, so that more light can be evenly incident on the focusing structure, so that the light emitted by the light source can be more evenly emitted from the light-transmitting area, and the light transmittance of different light-transmitting areas can be the same.
[0054] In some embodiments, a plurality of light-transmitting areas 50 may be distributed around the periphery of each reflective structure 60, and a plurality of light-transmitting areas 50 may be evenly distributed around the periphery of each reflective structure 60. For example, four light-transmitting areas 50 may be distributed around the periphery of each reflective structure 60, and a focusing structure 40 is provided for each light-transmitting area 50. A light source 20 may be provided at the top end of each reflective structure 60, and a reflective structure 60 may reflect the light emitted by a corresponding light source 20, so that the light reflected by the reflective structure 60 may be projected onto the four focusing structures 40, and the light focused by the focusing structure 40 may be emitted from the exit surface of the focusing structure to the corresponding light-transmitting area and emitted from the light-transmitting area, so that more light emitted by the light source may be emitted from the light-transmitting area, thereby improving the utilization rate of light.
[0055] In some embodiments, a plurality of light-transmitting areas 50 may be uniformly arranged on the periphery of each reflective structure 60. For example, four light-transmitting areas 50 may be uniformly distributed on the periphery of each reflective structure 60, and a focusing structure 40 may be provided for each light-transmitting area 50. A light source 20 may be provided at the top end of each reflective structure 60. The light emitted by the corresponding light source 20 may be reflected by a reflective structure 60, so that the light reflected by the reflective structure 60 may be uniformly projected onto the four focusing structures 40. The light emitted from the exit surface of the focusing structure 40 may be uniformly emitted to and from the corresponding light-transmitting areas, so that the light transmittance of different light-transmitting areas is the same. The sharp corner of the reflective structure 60 may be directly opposite the center of the light source to ensure that the light emitted by the light source is evenly separated and enters the self-focusing lens as much as possible. The sidewall of the reflective structure 60 may cause the light emitted by the light source to be totally reflected on its surface. The angle between the side surface of the reflective structure 60 and the axial direction of the reflective structure 60 may be greater than (90°-total reflection angle of the light). The magnitude of the total reflection angle of the light may be determined according to the refractive index of the material.
[0056] The light source can use an LED chip, and the light source can be placed directly below the midpoint of the line connecting two adjacent light-transmitting areas 50, so that its light-emitting angle is aligned with the light-receiving angle of the self-focusing lens. At the same time, in order to prevent the light emitted vertically from being directly absorbed by the light-shielding layer material directly above it, but to allow it to enter the self-focusing lens as much as possible, a pyramid-shaped reflective structure formed by a high-refractive-index material can be added directly above the light source. The vertically emitted light can be totally reflected on the surface of the pyramid, changing its propagation direction, allowing it to enter the self-focusing lens and finally pass through the light-transmitting area.
[0057] In one embodiment of the present invention, the number of light sources 20 can be multiple, and the multiple light sources 20 can be evenly spaced apart on one side surface of the substrate 10, or the multiple light sources 20 can be distributed in an array on one side surface of the substrate 10. The light shielding layer 30 can have multiple light-transmitting areas 50, and the multiple light-transmitting areas 50 can be evenly spaced apart on the light shielding layer 30, or the multiple light-transmitting areas 50 can be distributed in an array on the light shielding layer 30. The orthographic projections of the light sources 20 on the light shielding layer 30 and the light-transmitting areas 50 can be spaced apart, and the periphery of the orthographic projection of each light source 20 on the light shielding layer 30 can be distributed with multiple light-transmitting areas 50. For example, the periphery of the orthographic projection of each light source 20 on the light shielding layer 30 can be distributed with four light-transmitting areas 50. The light-transmitting areas 50 can be located at the four corners of a square area, with one light-transmitting area 50 being provided at each corner. The orthographic projection of the light source 20 on the light shielding layer 30 can be located at the center of the square area, so that light emitted by one light source 20 can be emitted from the four light-transmitting areas 50, and the light emitted by one light source 20 can provide light for the four light-transmitting areas. The shape of the reflective structure 60 can be a pyramid, the bottom surface of the reflective structure 60 can be set close to the shading layer 30, the bottom surface of the reflective structure 60 can be set parallel to the shading layer 30 and spaced apart, the top of the reflective structure 60 can be set toward the light source 20, the axis of the reflective structure 60 can be perpendicular to the substrate 10, the top end of the reflective structure 60 can be projected on the substrate 10 in the central area of the light source 20, the bottom surface of the reflective structure 60 can be projected on the substrate 10 in the substrate 10 can cover the light source 20, the bottom surface of the reflective structure 60 can be circular, the center of the bottom surface of the reflective structure 60 can be projected on the shading layer 30 in the center of the square area, and a focusing structure 40 is set for each light-transmitting area 50, and the focusing structure 40 can be a self-focusing lens so that the light reflected from the side of the reflective structure 60 can be evenly incident on the focusing structure 40.
[0058] The light emitted by a light source 20 can be projected onto the side of the reflective structure 60. The side of the reflective structure 60 acts as a reflective surface to reflect the light to the incident surface of the four focusing structures 40. The light incident on the focusing structure 40 is emitted from the exit surface of the focusing structure 40 to the light-transmitting area 50 and then emitted from the light-transmitting area 50. The light emitted by a light source is reflected by the reflective structure 60 and focused by the focusing structure 40, so that more light can be emitted from the light-transmitting area 50, thereby improving the effective utilization rate of light and reducing light waste. The number of light sources can be 1 / 4 of the number of light-transmitting areas of the shading layer 30, that is, one light source can control the light emission of four light-transmitting areas on the shading layer 30, and the thickness of the overall module can be no more than 2 mm. If the thickness of the module is increased, one light source can control the light emission of more light-transmitting areas at the same time, that is, the number of backlight partitions is reduced. A reasonable number of partitions and corresponding module thickness can be formulated according to specific light-split requirements.
[0059] In some embodiments, the reflective structure 60 and the light source 20 can be spaced apart, and the reflective structure 60 and the light source 20 can be spaced apart in a direction perpendicular to the substrate 10, so that the light emitted by the light source 20 is projected onto the reflective surface of the reflective structure 60, thereby preventing the top end of the reflective structure 60 from damaging the light source 20 under external force.
[0060] Optionally, the spacing distance between the reflective structure 60 and the light source 20 in the direction perpendicular to the substrate 10 can be 0.05-0.2 mm. For example, the spacing distance between the reflective structure 60 and the light source 20 in the direction perpendicular to the substrate 10 can be 0.1 mm, so that the light emitted by the light source 20 is projected onto the reflective surface of the reflective structure 60, preventing the top end of the reflective structure 60 from damaging the light source 20 under external force.
[0061] In some embodiments, the substrate 10 may have a first area and a second area, and the light-shielding layer 30 may have a third area and a fourth area. The substrate 10 and the light-shielding layer 30 may be spaced apart and may be parallel to each other. The orthographic projection of the third area on the substrate 10 may completely overlap with the first area, and the orthographic projection of the fourth area on the substrate 10 may completely overlap with the second area. Light sources may be set in both the first area and the second area, and light-transmitting areas may be set in both the third area and the fourth area.
[0062] The light sources located in the first area and the light sources located in the second area may be arranged in the same or different manner, and the light sources located in the first area and the light sources located in the second area may be distributed in an array. The light sources located in the first area and the light sources located in the second area may emit light of the same wavelength or light of different wavelengths. Specifically, they may be reasonably selected according to actual needs. For example, the light sources located in the first area may emit light of a first wavelength, and the light sources located in the second area may emit light of a second wavelength. The first wavelength is different from the second wavelength. For example, the light of the first wavelength may be red light, and the light of the second wavelength may be blue light. The light-transmitting area located in the third area and the light-transmitting area located in the fourth area may be arranged in the same or different manner, and the light-transmitting area located in the third area and the light-transmitting area located in the fourth area may be distributed in an array. The shapes and sizes of the light-transmitting area located in the third area and the light-transmitting area located in the fourth area may be the same or different. Specifically, they may be reasonably selected according to actual needs. For example, the shapes of the light-transmitting area located in the third area and the light-transmitting area located in the fourth area may both be circular, and the sizes of the light-transmitting area located in the third area and the light-transmitting area located in the fourth area may both be the same.
[0063] The setting manner of the reflective structure and the focusing structure located between the first area and the third area relative to the light source located in the first area and the light-transmitting area of the third area, and the setting manner of the reflective structure and the focusing structure located between the second area and the fourth area relative to the light source located in the second area and the light-transmitting area of the fourth area can be the same or different, and the specific selection can be made according to actual conditions.
[0064] An embodiment of the present invention provides a display panel, comprising:
[0065] The light-emitting module described in the above embodiment.
[0066] With the display panel having the light-emitting module in the above embodiment, the light emitted by the light source can be concentrated by the focusing structure and emitted more from the light-transmitting area, thereby improving the effective utilization rate of the light emitted by the light source, reducing power consumption, reducing light waste, and maximizing the utilization of light energy.
[0067] An embodiment of the present invention provides a display device, including:
[0068] The display panel described in the above embodiment.
[0069] In the display device having the display panel of the above embodiment, the light emitted by the light source can be concentrated by the focusing structure and emitted more from the light-transmitting area, thereby improving the effective utilization rate of the light emitted by the light source, reducing power consumption, reducing light waste, and maximizing the utilization of light energy.
[0070] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are protected by the present invention.
Claims
1. A light emitting module, characterized in that: include: substrate; a light source, the light source being disposed on one side of the substrate; a light-shielding layer, the light-shielding layer being disposed on a side of the light source away from the substrate, the light-shielding layer having a light-transmitting area; a light-concentrating structure, the light-concentrating structure being arranged on a side of the light-shielding layer close to the light source, the light emitted by the light source being incident on the light-concentrating structure, the light incident on the light-concentrating structure being emitted from an exit surface of the light-concentrating structure to the light-transmitting area and then being emitted from the light-transmitting area; A reflective structure, wherein the light emitted by the light source is projected onto a reflective surface of the reflective structure, and the light reflected by the reflective surface is incident on the light-concentrating structure; a plurality of light-transmitting areas are distributed on the periphery of each reflective structure; The reflective structure is arranged between the light shielding layer and the light source; The reflective structure is in a pyramidal shape, and the bottom surface of the reflective structure is arranged close to the light shielding layer; The bottom surface of the reflective structure is arranged parallel to the shading layer, the top of the reflective structure is arranged toward the light source, and the reflective structure and the light source are arranged in a direction perpendicular to the substrate; the bottom surface of the focusing structure is a side surface close to the substrate, and the bottom surface of the focusing structure is in the plane where the bottom surface of the reflective structure is located.
2. The light emitting module according to claim 1, wherein: The light-shielding layer has a plurality of light-transmitting areas distributed at intervals, and the orthographic projections of at least two of the light-transmitting areas on the substrate are arranged around the periphery of the light source.
3. The light emitting module according to claim 2, characterized in that: Orthographic projections of at least two light-transmitting areas on the substrate are evenly spaced around the periphery of the light source.
4. The light emitting module according to claim 1, wherein: The light-focusing structure is a self-focusing lens.
5. The light emitting module according to claim 4, characterized in that: The optical axis of the light-concentrating structure is perpendicular to the light-shielding layer. Each light-transmitting area is provided with a light-concentrating structure. The orthographic projection of the emitting surface of the light-concentrating structure on the light-shielding layer covers the light-transmitting area.
6. The light emitting module according to claim 1, wherein: The axis of the reflective structure is perpendicular to the light shielding layer.
7. The light emitting module according to claim 1, wherein: The reflective structure and the light source are spaced apart by a distance of 0.05-0.2 mm in a direction perpendicular to the substrate.
8. A display panel, characterized in that: include: The light-emitting module according to any one of claims 1 to 7.
9. A display device, characterized in that: include: The display panel according to claim 8.
Citation Information
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