CN115980909B - Light emitting component and display device - Google Patents
Light emitting component and display device Download PDFInfo
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- CN115980909B CN115980909B CN202310285647.2A CN202310285647A CN115980909B CN 115980909 B CN115980909 B CN 115980909B CN 202310285647 A CN202310285647 A CN 202310285647A CN 115980909 B CN115980909 B CN 115980909B
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Abstract
The application discloses a light emitting component and a display device. The light emitting component comprises a light guide plate, a light source and a dimming component. The light guide plate comprises a first surface and a second surface which are opposite; the light source is arranged on the light incident side surface of the light guide plate, the light adjusting component is arranged on the first surface of the light guide plate and comprises a plurality of light adjusting pieces, each light adjusting piece is positioned in different areas of the first surface, one surface of each light adjusting piece, which is back to the light guide plate, is provided with a position adjusting piece, and the position adjusting piece is configured to drive the light adjusting piece to be close to or far away from the first surface; when the light adjusting piece is close to the first surface, light rays emitted to the first surface in the light guide plate can be emitted from the second surface after being adjusted by the light adjusting piece. The light-emitting component can enable the light rays in different areas on the light guide plate to be emitted from the second surface after being regulated by the light-regulating component through regulating the light-regulating component in different areas, so that the partition control on whether the light rays are emitted from the first surface of the light guide plate is realized, and the display device adopting the light-emitting component can also realize the partition display control.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a light emitting device and a display apparatus.
Background
The light source of the display device of the side-in backlight module is positioned at the side edge of the screen, so that the display device can be thinner, and the development trend of the light and thin display device is met.
However, the display device of the side-in backlight module is based on the side light source to make the whole panel emit light, and the light emitting structure cannot adjust the local part of the display area, so that the partition control of the display surface of the display device cannot be achieved.
Disclosure of Invention
The technical problem that this application mainly solves is to provide a light emitting component and display device to solve the problem that current side income formula display backlight unit's display device is difficult to realize local dimming control.
In order to solve the above problems, the present application provides a light emitting assembly, which includes a light guide plate, a light source and a dimming assembly, wherein the light guide plate includes a first surface and a second surface opposite to each other, and the second surface is a light emitting surface of the light guide plate; the light source is arranged on the light incident side surface of the light guide plate, and light rays emitted by the light source are emitted into the light guide plate from the light incident side surface; the light emitting assembly further includes: the light adjusting assembly is arranged on the first surface of the light guide plate and comprises a plurality of light adjusting pieces, each light adjusting piece is located in different areas of the first surface, one surface, facing away from the light guide plate, of each light adjusting piece is provided with a position adjusting piece, and the position adjusting pieces are configured to drive the light adjusting pieces to be close to or far away from the first surface; when the light adjusting piece is close to the first surface, light rays emitted to the first surface in the light guide plate can be emitted from the second surface after being adjusted by the light adjusting piece.
In one possible implementation manner, a reflecting portion is disposed on a surface of the light adjusting member facing the light guide plate, when the light adjusting member is connected to the first surface, the reflecting portion is connected to the first surface, and light rays in the light guide plate, which are directed to the first surface, can be reflected by the reflecting portion and then emitted from the second surface.
In one possible implementation manner, the reflecting part is a plurality of protruding structures arranged in an array, and the protruding structures and the light adjusting piece are integrated.
In one possible embodiment, the planar dimensions and/or arrangement density of the raised structures on the periphery of the surface of the dimmer element are greater than the raised structures on the non-periphery of the surface of the dimmer pack.
In one possible implementation manner, the light source is arranged on at least one light incident side surface of the light guide plate; along the propagation direction of the light rays of the light source, the plane size and/or the arrangement density of the convex structures are gradually increased.
In one possible embodiment, the light sources are disposed at two opposite light incident sides of the light guide plate; the plane size and/or the arrangement density of the protruding structures of the light adjusting piece in the middle area of the light adjusting assembly are maximum, and the plane size and/or the arrangement density of the protruding structures gradually decrease along the two light source directions from the middle area.
In one possible implementation manner, the position adjusting member is a telescopic member, one end of the telescopic member is connected with one surface of the dimming member, which is opposite to the light guide plate, and the dimming member is driven to be close to or far away from the first surface by adjusting the telescopic length of the telescopic member.
In one possible embodiment, the height of the raised structures is no greater than 100 microns; the planar dimension of the raised structures is no greater than 1000 microns.
In one possible embodiment, the protruding structures are in the shape of hemispheres, cones and cylinders.
In order to solve the above problems, the present application further provides a display device, which includes a light emitting assembly, an optical film, and a display panel; the light-emitting component is arranged opposite to the display panel, and the optical film is arranged between the light-emitting component and the display panel; the light emitting assembly is the light emitting assembly described in the above embodiments.
The beneficial effects of this application are: in contrast to the prior art, the present application provides a light emitting assembly and a display device, where the light emitting assembly includes a light guide plate, a light source, and a dimming assembly; the light guide plate comprises a first surface and a second surface which are opposite to each other, and the second surface is a light emergent surface of the light guide plate; the light source is arranged on the light incident side surface of the light guide plate, and light rays emitted by the light source are emitted into the light guide plate from the light incident side surface; the light emitting assembly further includes: the light adjusting component is arranged on the first surface of the light guide plate and comprises a plurality of light adjusting pieces, each light adjusting piece is positioned in different areas of the first surface, one surface of each light adjusting piece, which is away from the light guide plate, is provided with a position adjusting piece, and the position adjusting piece is configured to drive the light adjusting piece to be close to or far away from the first surface; when the light adjusting piece is close to the first surface, light rays emitted to the first surface in the light guide plate can be emitted from the second surface after being adjusted by the light adjusting piece. According to the structure, the plurality of dimming parts are arranged on the second surface of the light guide plate in a partitioned mode, whether the light rays in different areas on the light guide plate are emitted from the second surface after being regulated by the dimming parts or not can be achieved through regulating the dimming parts in different areas, so that partition control on whether the light rays are emitted from the first surface of the light guide plate or not is achieved, and partition display control can be achieved by the display device with the luminous assembly.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a first state of a first embodiment of a light emitting assembly of the present application;
FIG. 2 is a schematic diagram illustrating a second state of the light emitting device of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the light emitting assembly of FIG. 1;
FIG. 4 is a schematic cross-sectional view of a second embodiment of a light emitting assembly of the present application;
FIG. 5 is a schematic cross-sectional view of a third embodiment of a light emitting assembly of the present application;
fig. 6 is a schematic structural diagram of an embodiment of a display device of the present application.
Reference numerals illustrate:
100/10, a light emitting assembly; 110. a light guide plate; 120/320, light source; 130. a dimming component; 131/231/331, a dimmer; 132. a position adjusting member; 133/233/333, raised structures; 200. a display device; 20. a panel; 30. an optical film; 40. a back plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, the "plurality" generally includes at least two, but does not exclude the case of at least one.
It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
It should be understood that the terms "comprises," "comprising," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
It should be noted that, in the embodiment of the present application, directional indications (such as up, down, left, right, front, and rear … …) are referred to, and the directional indications are merely used to explain the relative positional relationship, movement conditions, and the like between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
The display device of the side-in backlight is provided with a light source at the side surface of the light guide plate, and light rays are emitted from one surface to be irradiated on the panel for display after being transmitted inside the light guide plate.
Based on the above-mentioned problem, this application provides a light-emitting component, and this light-emitting component's light guide plate first surface is provided with a plurality of piece of adjusting luminance, and the piece distributes in the different regions on the light guide plate that adjusts the piece of adjusting luminance in different regions and comes the control light guide plate each region whether have light to be followed the second surface and shoot to make light-emitting component realize the subregion and give out light, adopt this light-emitting component's display device also can realize subregion display control.
A light emitting device and a display device provided in the present application are described in detail below with reference to the accompanying drawings and examples.
Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram illustrating a first state of a first embodiment of a light emitting device according to the present application; FIG. 2 is a schematic diagram illustrating a second state of the light emitting device of FIG. 1; fig. 3 is a schematic cross-sectional view of the light emitting device of fig. 1. In the present embodiment, the light emitting module 100 includes a light guide plate 110, a light source 120, and a dimming module 130.
The light guide plate 110 includes a first surface (not shown) and a second surface (not shown) opposite to the first surface. The second surface is a light emitting surface of the light guide plate 110. The light source 120 is disposed on the light incident side of the light guide plate 110, and the light emitted from the light source 120 is incident into the light guide plate 110 from the light incident side. The light adjusting component 130 is disposed on the first surface of the light guiding plate 110, and is used for making the light emitted to the first surface in the light guiding plate 110 be emitted from the second surface after being adjusted by the light adjusting component 130. Specifically, in the present embodiment, the light source 120 is disposed on one side of the light guide plate 110, and the light is incident into the light guide plate 110 from one side of the light guide plate 110. In other embodiments, the light source 120 may be disposed at one or more sides of the light guide plate 110. The light guide plate 110 is made of a material having a high refractive index and not absorbing light, such as a PC material, an acryl material, and the like. When the light emitted from the light source 120 is emitted to the light guide plate 110, the light is totally reflected at the light incident side, and the totally reflected light propagates in all directions in the light guide plate 110 and is continuously reflected at the first surface and the second surface. When light is emitted onto the light modulation component 130 connected to the first surface, the total reflection path of the light is destroyed, and the light is reflected by the light modulation component 130 and emitted from the second surface of the light guide plate 110, thereby realizing light emission.
In this embodiment, the light modulating component 130 includes a plurality of light modulating members 131 arranged in an array, and each light modulating member 131 is located in a different area of the first surface. The light adjusting members 131 are disposed on a surface of the light guiding plate 110 opposite to the light guiding plate, and the position adjusting members 132 are configured to drive the light adjusting members 131 to approach or separate from the first surface. When the light adjusting member 131 is close to the first surface, the light emitted to the first surface in the light guiding plate 110 can be emitted from the second surface after being adjusted by the light adjusting member 131. Specifically, the light-modulating component 130 breaks the total reflection of the light emitted to the first surface, so that the light is reflected and directly emitted from the second surface, and the light-emitting component 100 achieves the purpose of emitting light. In this embodiment, the dimming component 130 includes a plurality of dimming components 131, the dimming components 131 are arranged in an array, so that each region of the first surface of the light guide plate 110 is provided with a separate dimming component 131, when all regions of the light emitting component 100 are required to emit light, each dimming component 131 is close to and connected to the first surface of the light guide plate 110 by adjusting the position adjusting component 132, and thus the light of each region in the light guide plate 110 is reflected from the second surface after the first surface is damaged by the dimming component 131, and all regions of the light emitting component 100 emit light. When the light emitting assembly 100 needs to be subjected to zone control to locally emit light, the position adjusting part 132 of the light adjusting part 131 of the appointed area which does not need to emit light is adjusted, so that the light adjusting part 131 of the appointed area is far away from the unconnected first surface, the light is reflected on the first surface of the appointed area, the light does not have the light adjusting part 131 to damage the total reflection path of the light, the light is totally reflected on the appointed area and continuously propagates in the light guide plate 110, the second surface of the appointed area does not emit light, and the appointed area does not emit light.
In the state of the light emitting assembly 100 of fig. 1, each light adjusting member 131 is adjusted to be close to the first surface, each light adjusting member 131 is connected to the first surface, and each region of the light guide plate 110 of the light emitting assembly 100 emits light. In the state of the light emitting assembly 100 of fig. 2, the partial dimming element 131 is connected to the first surface near the first surface, and the partial dimming element 131 is spaced apart from the first surface away from the first surface, and the designated area of the light guide plate 110 of the light emitting assembly 100 does not emit light.
In other words, the light emitting assembly 100 is provided with a plurality of light adjusting members 131 on the second surface of the light guide plate 110, and the light of different areas on the light guide plate 110 can be selected by adjusting the light adjusting members 131 and then emitted from the second surface, so that the partition control on whether the light is emitted from the first surface of the light guide plate 110 is realized, and the display device adopting the light emitting assembly 100 can also realize the partition display control.
Further, in the present embodiment, a reflecting portion (not shown) is disposed on a surface of the light adjusting member 131 facing the light guiding plate 110. When the light adjusting member 131 is connected to the first surface, the reflecting portion is connected to the first surface, and the light emitted to the first surface in the light guiding plate 110 can be emitted from the second surface after being reflected by the reflecting portion. The reflecting portion is a plurality of protruding structures 133 arranged in an array, and the protruding structures 133 and the light adjusting member 131 are integrated. Specifically, when the light adjusting member 131 is connected to the first surface of the light guide plate 110, the specific reflecting portion is connected to the first surface, and the light emitted to the first surface in the light guide plate 110 is not totally reflected by the reflecting portion, and is reflected by the reflecting portion and then emitted from the second surface of the area. In the present embodiment, the bump structure 133 is composed of a polymer material and a metal plating layer formed on the surface thereof, and in order to enhance the reflection effect of the reflection portion, it is preferable that the bump structure 133 is formed by stacking a plurality of polymer material layers and metal plating layers. The protruding structure 133 and the light adjusting member 131 are integrated, and the design has the advantage that the light adjusting member 131 and the reflecting portion are integrated, and no gap exists between the light adjusting member 131 and the reflecting portion, so that light leakage caused by light incident on the light adjusting assembly 130 is avoided. Further, the protruding structures 133 are preferably uniformly arranged on the surface of the light adjusting member 131 in the transverse and longitudinal directions, which ensures that the light is uniformly emitted from the second surface after being reflected by the reflecting portion.
In this embodiment, the protruding structure 133 is located on the light adjusting member 131, and the first surface of the light guiding plate 110 is a plane. In other embodiments, the first surface of the light guide plate 110 is configured to form a plurality of protrusions, the first surface is a concave-convex surface, the surface of each light adjusting member 131 facing the light guide plate 110 is a plane, the plane surface is provided with a metal plating layer, and the position adjusting member 132 is adjusted to enable the plane of the light adjusting member 131 in the designated area to be close to the first surface contacting the concave-convex surface, so that the total reflection of the light in the designated area can be destroyed, and the light in the designated area can be emitted from the second surface to achieve the aim of controlling the light emission in the light emission region.
Further, in the present embodiment, the side surface of the light guide plate 110 is provided with a plurality of light sources 120 arranged in a column direction. In a preferred embodiment, the light adjusting members 131 are preferably arranged in a plurality of rows and columns, and the number of rows of the light adjusting members 131 is equal to the number of the light sources 120. The light sources 120 each have a row of dimming elements 131 aligned with the dimming elements, and the design manner can make the light emitted from the second surface more uniform after the dimming element 130 reflects the light and emits the light from the second surface.
Wherein, because the dimming component 130 is a plurality of dimming components 131 which are arranged and spliced in an array manner, the existence of gaps between adjacent dimming components 131 is difficult to be avoided, the gaps can cause the problem of light leakage, and the problems of dark lines and lower brightness are easy to occur at the gaps. Referring to fig. 4, fig. 4 is a schematic cross-sectional view of a second embodiment of a light emitting device of the present application. In this embodiment, the distribution of the protruding structures 233 on the surface of the light adjusting member 231 is adjusted. The planar size and/or arrangement density of the raised structures 233 on the periphery of the surface of the light modulating member 231 is greater than the raised structures 233 on the non-periphery of the surface of the light modulating element. Specifically, the planar size of the peripheral protrusion structure 233 is made larger, or the arrangement of the peripheral protrusion structure 233 is made tighter, or the planar size of the peripheral protrusion structure 233 is made larger, and the arrangement of the protrusion structure 233 is made tighter at the same time, which has the advantages of making the total protrusion area of the surface edge area of the light adjusting member 231 larger, the reflection efficiency of the light at the edge of the light adjusting member 231 higher, and more light is emitted from the second surface corresponding to the gap, so that the problems of dark line and lower brightness caused by the gap are effectively reduced.
Further, in the first embodiment, the light source 120 of the light emitting assembly 100 of the side-in light source 120 is disposed on at least one light-in side of the light guide plate 110; the side-entry light source 120 is disposed on the left side of the light guide plate 110 in the drawing, wherein the light quantity of the side-entry light source 120 is inevitably reduced gradually along the light propagation direction, and as a result, the light emitted from the second surface is reduced gradually along the light propagation direction after being reflected by the light modulation member 131 of each area, so that the display device has a problem of uneven light emission. In order to solve the above-mentioned problems, please refer to fig. 5, fig. 5 is a schematic cross-sectional view of a third embodiment of the light emitting device of the present application. In the present embodiment, the planar dimensions and/or arrangement density of the protruding structures 333 gradually increase along the propagation direction of the light rays of the light source 320. Specifically, in the present embodiment, the planar dimensions of the protruding structures 333 become gradually larger and the arrangement density becomes gradually higher from the left to the right. The design makes the convex area of the surface of the light adjusting member 331 bigger and bigger along the propagation direction of the light source 320, so that the reflection efficiency of the light in the propagation direction is gradually increased. Therefore, the second surface of each area of the light guide plate emits as much light, and the design can lead the luminous component to emit light uniformly.
In the first embodiment, the light source 120 is disposed on the left side of the light guide plate 110, and in other embodiments, the light source 120 can be disposed on any side of the light guide plate 110, or the light source 120 can be disposed on any multiple sides of the light guide plate 110.
With continued reference to fig. 1 to 3, in the first embodiment, when the light sources 120 are disposed on opposite sides of the light guide plate 110, the light sources 120 are disposed on opposite light incident sides of the light guide plate 110. The planar size and/or arrangement density of the protrusion structures 133 of the light modulating member 131 in the middle region of the light modulating assembly 130 is designed to be maximum, and the planar size and/or arrangement density of the protrusion structures 133 gradually decreases in the direction of the two light sources 120 from the middle region. Specifically, when the light sources 120 are located at the left and right sides of the light guide plate 110, the light is transmitted inside the light guide plate 110, the light in the middle area of the light guide plate 110 is minimum, the light in the two side areas of the light guide plate 110 is maximum, and in order to avoid the uneven light emission of the final light emitting assembly 100, the plane size and/or arrangement density of the protruding structures 133 of the light modulating member 131 in the middle area of the light modulating assembly 130 are maximum, and the plane size and/or arrangement density of the protruding structures 133 gradually decreases toward the two light sources 120. To improve the efficiency of the reflected light in the middle area and ensure uniform light emission of the light emitting device 100.
In other embodiments, when the light sources 120 are disposed on two adjacent vertical sides of the light guide plate 110, the planar dimensions and/or the arrangement density of the dimming elements 131 are gradually increased along the diagonal direction thereof, so as to ensure that the light emitting assembly 100 emits light uniformly.
With reference to fig. 1 to 3, in the present embodiment, the position adjusting member 132 is a telescopic member, one end of the telescopic member is connected to one surface of the light adjusting member 131 facing away from the light guiding plate 110, and the telescopic length of the telescopic member is adjusted to drive the light adjusting member 131 to approach or separate from the first surface. Specifically, when the telescopic member stretches to drive the light adjusting member 131 to approach the first surface, the reflecting portion of the light adjusting member 131 is connected to the first surface, so that the light can be reflected from the second surface, and when the telescopic member shortens to drive the light adjusting member 131 to approach the first surface, the reflecting portion of the light adjusting member 131 is separated from the first surface, so that the light is normally totally reflected in the area, and no light is emitted from the second surface of the area. In order to ensure that the reflective portion is completely separated from the first surface when the telescopic member is shortened, the telescopic range of the telescopic member is preferably greater than 1000 micrometers, for example, 1000 micrometers, 1100 micrometers, 1200 micrometers, 1300 micrometers, etc., and is not particularly limited.
Further, in the present embodiment, it is preferable that the height of the raised structures 133 is not more than 100 micrometers; the planar dimensions of the raised structures 133 are no greater than 1000 microns. Specifically, the height of the protruding structures 133 may be, but is not limited to, 100 microns, 90 microns, 80 microns, etc., and the protruding structures 133 within the height range can ensure that the reflection portion breaks the effect of light total reflection propagation. The planar dimensions of the raised structures 133 may be, but are not particularly limited to, 1000 microns, 900 microns, 800 microns, etc. The maximum planar size of the protruding structures 133 is 1000 micrometers, because the smaller the size of the protruding structures 133, the more uniformly dispersed the protruding portions are connected to the first surface, so that the light emitting assembly 100 emits light more uniformly, and when the planar size of the protruding structures 133 is greater than 1000 micrometers, it is difficult to ensure that the light emitting assembly 100 emits light uniformly.
In this embodiment, the protruding structure 133 is a hemispherical body, and in some other embodiments, the protruding structure 133 can be any suitable shape such as a cone, a cylinder, or the like.
The foregoing embodiments may be combined with each other to obtain other embodiments, and the structure of the embodiments should be within the scope of protection of the present application, which is not described herein.
In other words, the light emitting assembly 100 is provided with a plurality of light adjusting members 131 on the second surface of the light guide plate 110, and the light of different areas on the light guide plate 110 can be selected by adjusting the light adjusting members 131 and then emitted from the second surface, so that the partition control on whether the light is emitted from the first surface of the light guide plate 110 is realized, and the display device adopting the light emitting assembly 100 can also realize the partition display control.
Correspondingly, the application also provides a display device. Referring to fig. 6 in combination, fig. 6 is a schematic structural diagram of an embodiment of a display device of the present application. In one embodiment, the display device 200 includes a light emitting device 10, an optical film 30, and a display panel 20.
The light emitting assembly 10 is arranged opposite to the display panel 20, and the optical film 30 is arranged between the light emitting assembly 10 and the display panel 20; wherein the light emitting assembly 10 is the light emitting assembly 10 described in the above embodiments. In addition, the display device 200 of the present application further includes a back plate 40, where the back plate 40 is disposed on a surface of the light emitting assembly 10 away from the panel 20, and the other end of the light emitting assembly 10 away from the panel 20 is connected to the back plate 40 to fix and support the light emitting assembly 10.
In other words, the light emitting component 10 of the display device 200 is provided with a plurality of light adjusting members on the second surface of the light guide plate in a partitioned manner, and the light adjusting members in different areas are adjusted to ensure that whether the light in different areas on the light guide plate is emitted from the second surface after being adjusted by the light adjusting members or not is selected, so that the partition control on whether the light emitting is carried out on the first surface of the light guide plate is realized, and the display device 200 adopting the light emitting component 10 can also realize the partition display control.
The foregoing is only examples of the present application, and is not intended to limit the scope of the patent application, and all equivalent structures or equivalent processes using the descriptions and the contents of the present application or other related technical fields are included in the scope of the patent application.
Claims (9)
1. A light emitting assembly, comprising:
the light guide plate comprises a first surface and a second surface which are opposite to each other, wherein the second surface is a light emergent surface of the light guide plate;
the light source is arranged on the light incident side surface of the light guide plate, and light rays emitted by the light source are emitted into the light guide plate from the light incident side surface;
characterized in that the lighting assembly further comprises:
the light adjusting assembly is arranged on the first surface of the light guide plate and comprises a plurality of light adjusting pieces, each light adjusting piece is located in different areas of the first surface, one surface, facing away from the light guide plate, of each light adjusting piece is provided with a position adjusting piece, and the position adjusting pieces are configured to drive the light adjusting pieces to be close to or far away from the first surface; when the light adjusting piece is close to the first surface, light rays emitted to the first surface in the light guide plate can be emitted from the second surface after being adjusted by the light adjusting piece;
the light adjusting piece is provided with a reflecting part on one surface facing the light guide plate, the reflecting part is provided with a plurality of protruding structures distributed in an array, and the plane size and/or distribution density of the protruding structures on the periphery of the surface of the light adjusting piece are larger than those of the protruding structures on the non-periphery of the surface of the light adjusting component.
2. The lighting assembly of claim 1 wherein the light emitting device comprises,
when the light adjusting piece is connected with the first surface, the reflecting part is connected with the first surface, and light rays emitted to the first surface in the light guide plate can be emitted from the second surface after being reflected by the reflecting part.
3. A lighting assembly according to claim 2 wherein,
the protruding structure and the light adjusting piece are of an integrated structure.
4. A lighting assembly according to claim 3 wherein,
the light source is arranged on at least one light incident side surface of the light guide plate;
along the propagation direction of the light rays of the light source, the plane size and/or the arrangement density of the convex structures are gradually increased.
5. The lighting assembly of claim 4 wherein the light emitting device comprises,
the light sources are arranged on two opposite light incident side surfaces of the light guide plate;
the plane size and/or the arrangement density of the protruding structures of the light adjusting piece in the middle area of the light adjusting assembly are maximum, and the plane size and/or the arrangement density of the protruding structures gradually decrease along the two light source directions from the middle area.
6. The lighting assembly of claim 1 wherein the light emitting device comprises,
the position adjusting piece is a telescopic piece, one end of the telescopic piece is connected with one face, opposite to the light guide plate, of the dimming piece, and the dimming piece is driven to be close to or far away from the first surface by adjusting the telescopic length of the telescopic piece.
7. A lighting assembly according to claim 3 wherein,
the height of the raised structures is no greater than 100 microns; the planar dimension of the raised structures is no greater than 1000 microns.
8. A lighting assembly according to claim 3 wherein,
the shape of the protruding structure is a hemisphere, a cone and a cylinder.
9. A display device comprises a light emitting component, an optical film and a display panel; the light-emitting component is arranged opposite to the display panel, and the optical film is arranged between the light-emitting component and the display panel; the light-emitting component according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310285647.2A CN115980909B (en) | 2023-03-22 | 2023-03-22 | Light emitting component and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310285647.2A CN115980909B (en) | 2023-03-22 | 2023-03-22 | Light emitting component and display device |
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| CN115980909A CN115980909A (en) | 2023-04-18 |
| CN115980909B true CN115980909B (en) | 2023-07-18 |
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