CN214310968U - Light guide structure and light emitting device - Google Patents
Light guide structure and light emitting device Download PDFInfo
- Publication number
- CN214310968U CN214310968U CN202120328239.7U CN202120328239U CN214310968U CN 214310968 U CN214310968 U CN 214310968U CN 202120328239 U CN202120328239 U CN 202120328239U CN 214310968 U CN214310968 U CN 214310968U
- Authority
- CN
- China
- Prior art keywords
- light
- light guide
- guide plate
- assembly
- light source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Planar Illumination Modules (AREA)
Abstract
The utility model discloses a light guide structure and a light emitting device, wherein the light guide structure comprises a first light guide component and a second light guide component; the first light guide assembly comprises a first light guide plate, the first light guide plate is provided with a first accommodating cavity and an intermediate light-emitting area, the first accommodating cavity is configured to accommodate a first light source, and the intermediate light-emitting area is configured to receive light of the first light source and transmit the light of the first light source to the outside; the second light guide assembly comprises a second light guide plate, the second light guide plate is provided with a second containing cavity, a through hole and an annular light emitting area, the second containing cavity is configured to contain a second light source, the through hole and the intermediate light emitting area are correspondingly arranged and completely expose the intermediate light emitting area, the annular light emitting area is arranged around the edge of the through hole, and the annular light emitting area is configured to receive light of the second light source and transmit the light of the second light source to the outside. The utility model discloses a light-directing structure can make light emitting equipment realize the miniaturization under the even prerequisite of luminous display guaranteeing.
Description
Technical Field
The utility model relates to a light emitting equipment technical field specifically relates to a light guide structure and light emitting equipment.
Background
Currently, some light emitting devices desire to achieve a light emitting effect as follows: the specific shape of the luminous material can be circular, rectangular or elliptical, the middle area of the luminous material needs to emit light integrally, the annular peripheral area surrounding the middle area adopts annular luminous design, the luminous effects of the middle area and the annular peripheral area cannot interfere with each other, and consumers can obviously see different luminous effects of the middle area and the annular peripheral area. In order to achieve the above-described light emitting effect, the light emitting apparatus of the related art generally needs to adopt a structure as follows: adopt the light guide plate structure subassembly of individual layer, middle light guide plate and the peripheral light guide plate of annular separate through annular light-shielding part, the below of light guide plate structure subassembly is provided with a plurality of light sources, and a plurality of light sources upwards give out light simultaneously in order to form foretell luminous effect.
However, the related art light emitting apparatus has the following problems: under the condition that the distance between the light source and the light guide plate structure assembly is insufficient, obvious light source bright spots can be seen in the display area, and luminous display is not uniform enough, so that the light source bright spots have higher requirements on the distance between the light source and the light guide plate structure assembly, and the light-emitting equipment is difficult to miniaturize.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the problem that prior art exists, provide a light-directing structure and light emitting equipment, this light-directing structure can make light emitting equipment realize the miniaturization under the even prerequisite of luminous display guaranteeing.
In order to achieve the above object, the present invention provides a light guide structure, which includes a first light guide assembly and a second light guide assembly; the first light guide assembly comprises a first light guide plate, the first light guide plate is provided with a first accommodating cavity and an intermediate light-emitting area, the first accommodating cavity is configured to accommodate a first light source, and the intermediate light-emitting area is configured to receive light of the first light source and transmit the light of the first light source to the outside; the second light guide assembly comprises a second light guide plate, the second light guide plate is provided with a second accommodating cavity, a through hole and an annular light emitting area, the second accommodating cavity is configured to accommodate a second light source, the through hole is arranged corresponding to the intermediate light emitting area and is completely exposed out of the intermediate light emitting area, the annular light emitting area surrounds the edge of the through hole, and the annular light emitting area is configured to receive light of the second light source and transmit the light of the second light source to the outside.
Optionally, the first light guide assembly includes a first light reflecting film and a first light uniformizing film respectively disposed on two opposite sides of the first light guide plate.
Optionally, the first light guiding assembly includes a first light shielding portion covering the first light uniformizing film and completely exposing the middle light emitting area.
Optionally, the second light guide assembly includes a second light reflecting film and a second light equalizing film respectively disposed on two opposite sides of the second light guide plate, and the second light reflecting film and the second light equalizing film respectively avoid the through holes of the second light guide plate; preferably, the second light guide assembly includes a second light shielding portion covering the second light uniformizing film and completely exposing the annular light emitting area.
Optionally, the light guide structure includes a third light guide assembly, and the third light guide assembly includes a third light guide plate disposed in the through hole; preferably, the third light guide assembly includes a third light shielding part having a gap with an inner wall of the through hole, the third light shielding part being disposed in the gap.
Optionally, the first light guide assembly and the second light guide assembly are stacked, and the first light guide assembly is disposed below the second light guide assembly.
Optionally, the second light guide plate has an installation cavity, the through hole is communicated with the installation cavity, the second receiving cavity is disposed at the periphery of the installation cavity along the radial direction of the second light guide plate, and the first light guide assembly is installed in the installation cavity.
The utility model also provides a light-directing structure, light-directing structure includes: a first light guide plate; a third light guide plate upwardly protruded inside a portion of an upper surface of the first light guide plate; a third light shielding part arranged around the outer side of the periphery of the third light guide plate; and the second light guide plate is provided with a through hole and is embedded outside the periphery of the third shading part through the through hole, so that the second light guide plate is overlapped on the upper surface of the first light guide plate.
Through the technical scheme, when the first light source is arranged in the first accommodating cavity, light of the first light source is transmitted to the middle light-emitting area in the first light guide plate, the outside can observe the light-emitting effect of the middle light-emitting area through the through holes of the second light guide plate, meanwhile, the second light source is arranged in the second accommodating cavity, light of the second light source is transmitted to the annular light-emitting area in the second light guide plate, the outside can directly observe the light-emitting effect of the annular light-emitting area, and therefore the outside can observe the light-emitting effect of the middle light-emitting area and the light-emitting effect of the annular light-emitting area at the same time. Because the first light source with the second light source can set up respectively first light guide plate with the inside of second light guide plate, its technical scheme who adopts light source and the mutual interval arrangement of light guide plate structure in prior art is compared, can greatly reduce light guide structure's whole thickness, and, because the first light source is followed first light guide plate radially with middle light-emitting region interval arrangement, consequently can make the luminous demonstration of middle light-emitting region is even, and obvious light source two points can not be observed to the external world, the second light source with the second light guide plate is the same, consequently, the utility model discloses a light guide structure can make light emitting device realize miniaturizing under the even prerequisite of assurance luminous demonstration.
The utility model also provides a light-emitting device, which comprises a first light-emitting component, a second light-emitting component and the light guide structure; the first light-emitting assembly comprises a first circuit board and a first light source arranged on the first circuit board, and the first light source is arranged in the first accommodating cavity; the second light-emitting assembly comprises a second circuit board and a second light source arranged on the second circuit board, the second light source is arranged in the second accommodating cavity, and the second circuit board is arranged between the first light guide assembly and the second light guide assembly; preferably, the first circuit board and the second circuit board are flexible circuit boards formed integrally.
The utility model also provides a light-emitting device, which comprises a third light-emitting component and the light guide structure; the third light-emitting assembly comprises a third circuit board, a first light source and a second light source, wherein the first light source and the second light source are arranged on the third circuit board, the first light source is arranged in the first accommodating cavity, and the second light source is arranged in the second accommodating cavity.
The advantages of the light emitting device and the light guide structure are the same as those of the light guide structure in the prior art, and are not described herein again.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a light emitting apparatus of the present invention;
fig. 2 is an exploded view of a component of an embodiment of the light emitting apparatus of the present invention;
fig. 3 is a cross-sectional view of an embodiment of the light emitting apparatus of the present invention;
FIG. 4 is an enlarged schematic view of portion A of FIG. 3;
fig. 5 is a schematic structural view of another embodiment of a light emitting apparatus of the present invention;
fig. 6 is an exploded view of another embodiment of the light emitting apparatus of the present invention;
fig. 7 is a cross-sectional view of another embodiment of a light emitting apparatus of the present invention;
fig. 8 is an enlarged schematic view of a portion a in fig. 7.
Description of the reference numerals
100-a first light guide assembly, 110-a first light guide plate, 111-a first accommodating cavity, 112-a middle light emitting region, 120-a first reflective film, 130-a first light homogenizing film, 140-a first light shielding part,
200-a second light guide assembly, 210-a second light guide plate, 211-a second accommodating cavity, 212-an annular light emitting region, 213-a through hole, 220-a second reflective film, 230-a second light homogenizing film, 240-a second shading part,
300-a third light guide member, 310-a third light guide plate, 320-a third light shielding portion,
410-a first light source, 420-a second light source,
510-a first circuit board, 520-a second circuit board, 530-a third circuit board,
610-upper shell, 620-lower shell
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
The utility model provides a light guide structure, which comprises a first light guide plate, a second light guide plate, a third light guide plate and a third shading part; the third light guide plate protrudes upwards from the inner part of the upper surface of the first light guide plate; the third shading part is arranged at the outer side of the periphery of the third light guide plate in a surrounding way; the second light guide plate is provided with a through hole and is embedded outside the periphery of the third shading part through the through hole, so that the second light guide plate is overlapped on the upper surface of the first light guide plate.
The third light guide plate is sleeved on the upper surface of the first light guide plate, so that the third light guide plate emits light upwards from the light guided by the first light guide plate, the peripheral part of the first light guide plate emits light upwards from the light guided by the second light guide plate, the third light guide plate and the peripheral part are isolated by the third shading part to avoid light penetration, and the light source is not limited if the light source is arranged inside or outside the light guide plate.
In the following, different embodiments will be explained by taking an example in which the light source is disposed inside the light guide plate.
As shown in fig. 1 to 8, the light guide structure of the present invention includes a first light guide assembly 100 and a second light guide assembly 200; the first light guide assembly 100 includes a first light guide plate 110, the first light guide plate 110 having a first receiving cavity 111 and an intermediate light emitting region 112, the first receiving cavity 111 being configured to receive the first light source 410, the intermediate light emitting region 112 being configured to receive light of the first light source 410 and transmit the light of the first light source 410 to the outside; the second light guide assembly 200 includes a second light guide plate 210, the second light guide plate 210 has a second receiving cavity 211, a through hole 213 and an annular light emitting region 212, the second receiving cavity 211 is configured to receive a second light source 420, the through hole 213 is disposed corresponding to the middle light emitting region 112 and completely exposes the middle light emitting region 112, the annular light emitting region 212 is disposed around an edge of the through hole 213, and the annular light emitting region 212 is configured to receive light of the second light source 420 and transmit the light of the second light source 420 to the outside.
The utility model discloses in, when first light source 410 placed first holding chamber 111 in, the light of first light source 410 transmits to middle light-emitting region 112 in first light guide plate 110, the external world can observe the luminous effect of middle light-emitting region 112 through the through-hole 213 of second light guide plate 210, and simultaneously, second light source 420 placed the second in and held chamber 211, the light of second light source 420 transmits to annular light-emitting region 212 in second light guide plate 210, the external world can direct observation reach the luminous effect of annular light-emitting region 212, therefore, the external world can observe the luminous effect of middle light-emitting region 112 and the luminous effect of annular light-emitting region 212 simultaneously. Because first light source 410 and second light source 420 can set up respectively in the inside of first light guide plate 110 and second light guide plate 210, it is compared in the technical scheme that prior art adopted light source and the mutual interval arrangement of light guide plate structure, can greatly reduce light guide structure's whole thickness, and, because first light source 410 along first light guide plate 110 radial with middle light-emitting region 112 interval arrangement, consequently can make middle light-emitting region 112's luminous display even, obvious light source bright spot can not be observed to the external world, second light source 420 and second light guide plate 210 are with the same reason, consequently, the utility model discloses a light guide structure can make light emitting equipment realize miniaturizing under the even prerequisite of assurance luminous display.
In order to ensure the transmission efficiency of light in the first light guide plate 110 and improve the light emitting display uniformity of the middle light emitting region, in an embodiment of the present invention, the first light guide assembly 100 includes a first reflective film 120 and a first light uniformizing film 130 respectively disposed at two opposite sides of the first light guide plate 110. Wherein, the light in the light guide plate can be reflected to the reflective coating, makes light jet out towards the membrane of making the even light, and the membrane of making the luminous demonstration more even of making.
Further, in an embodiment of the present invention, the first light guiding assembly 100 includes a first shading portion 140 covering the first light homogenizing film 130 and completely exposing the middle light emitting region 112. The light shielding portion can effectively prevent light from being emitted from a region other than the intermediate light-emitting region 112, and optimize the light-emitting effect. The first light shielding portion 140 may be formed by printing a layer of light shielding material or a film or a structure.
Similarly, in order to guarantee the transmission efficiency of light in second light guide plate 210 to improve the luminous demonstration homogeneity of the luminous zone of annular, the utility model discloses an embodiment, second leaded light subassembly 200 is including setting up second reflective membrane 220 and the second membrane 230 of evening light in the relative both sides of second light guide plate 210 respectively, and second reflective membrane 220 and second membrane 230 of evening light dodge the through-hole 213 of second light guide plate 210 respectively. The light reflecting film can reflect light in the light guide plate, so that the light is emitted toward the light equalizing film, the light equalizing film can make the luminous display more uniform, and in order not to interfere with light emitted from the middle light emitting region 112, the second light reflecting film 220 and the second light equalizing film 230 respectively avoid the through hole 213 of the second light guide plate 210 so as to completely expose the through hole 213.
Further, in an embodiment of the present invention, the second light guiding assembly 200 includes a second light shielding portion 240 covering the second light homogenizing film 230 and completely exposing the annular light emitting area 212. The light shielding portion can effectively prevent light from being emitted from the region other than the annular light-emitting region 212, and the light-emitting effect is optimized. The second light-shielding portion 240 may be formed by printing a layer of light-shielding material or a film or a structural member.
In order to promote light guide structure's whole luminous effect, the utility model discloses an in one embodiment, light guide structure includes third light guide component 300, third light guide component 300 is including setting up third light guide plate 310 in through-hole 213, that is to say, can pass through third light guide plate 310 after light jets out from middle light-emitting region 112, jet out to the external world again through third light guide plate 310, the thickness of third light guide plate 310 can be roughly the same with the thickness of through-hole 213, make third light guide plate 310 flush with second light guide plate 210, thereby improve light guide structure's whole luminous effect.
In order to distinguish the light emitting effect of the middle light emitting region 112 from the light emitting effect of the annular light emitting region 212 more significantly, in an embodiment of the present invention, the third light guiding assembly 300 includes a third light shielding portion 320, a gap is formed between the third light guiding plate 310 and the inner wall of the through hole 213, and the third light shielding portion 320 is disposed in the gap. The third light-shielding portion 320 may be formed by printing a layer of light-shielding material or a film or a structure.
It should be noted that the shape of the middle light-emitting area 112 may be circular, rectangular, triangular, etc., and is not limited herein, and the shape of the annular light-emitting area 212 may be matched with the shape of the middle light-emitting area 112 or not matched with the shape of the middle light-emitting area 112, as long as the annular light-emitting area 212 surrounds the periphery of the middle light-emitting area 112, and the annular light-emitting area 212 may be a continuous light-emitting area or an intermittent light-emitting area, which is not limited herein.
The utility model discloses a position relation of first leaded light subassembly 100 and second leaded light subassembly 200 can have multiple design, for example the utility model discloses an in the embodiment, as shown in fig. 1 to 4, first leaded light subassembly 100 and the range upon range of setting of second leaded light subassembly 200, first leaded light subassembly 100 sets up the below at second leaded light subassembly 200 for first light guide plate 110 can be located the below of second light guide plate 210, light jets out from bottom to top, the luminous effect of middle luminous region 112 and the luminous effect of ring-shaped light emitting region 212 can be observed clearly to the observer.
In another embodiment of the present invention, as shown in fig. 5 to 8, the second light guide plate 210 has an installation cavity, the through hole 213 communicates with the installation cavity, the second accommodating cavity 211 is radially disposed at the periphery of the installation cavity along the second light guide plate 210, and the first light guide assembly 100 is installed in the installation cavity. This embodiment further compresses the overall thickness of the light guiding structure such that the overall thickness of the light guiding structure is substantially the same as the thickness of the second light guiding component, better achieving miniaturization.
The utility model also provides a light-emitting device, which comprises a first light-emitting component, a second light-emitting component and a light guide structure shown in figures 1 to 4; the first light emitting assembly includes a first circuit board 510 and a first light source 410 disposed on the first circuit board 510, the first light source 410 being disposed in the first receiving cavity 111; the second light emitting assembly includes a second circuit board 520 and a second light source 420 disposed on the second circuit board 520, the second light source 420 being disposed in the second receiving cavity 211, the second circuit board 520 being disposed between the first light guide assembly 100 and the second light guide assembly 200. That is, the components of the light emitting device are, from bottom to top, a lower case 620, a first light emitting module, a first light guide module 100, a third light guide module 300, a second light emitting module, a second light guide module 200, and an upper case 610.
In order to further save cost and the quantity of circuit connection line, in an embodiment of the utility model, first circuit board 510 and second circuit board 520 are integrated into one piece's flexible circuit board, and this circuit board is made for the FPC material, and first circuit board 510 and second circuit board 520 are connected with integrated into one piece through the kink between the two.
The utility model also provides a light-emitting device, which comprises a third light-emitting component and a light guide structure shown in figures 5 to 8; the third light emitting assembly includes a third circuit board 530, a first light source 410 and a second light source 420 disposed on the third circuit board 530, the first light source 410 being disposed in the first receiving cavity 111, the second light source 420 being disposed in the second receiving cavity 211. That is, the components of the light emitting apparatus are, from bottom to top, a lower case 620, a third light emitting element, a first light guide element 100, a third light guide element 300, a second light guide element 200, and an upper case 610. The light emitting apparatus can be more miniaturized.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. In the technical idea scope of the present invention, it is possible to provide a solution of the present invention with a plurality of simple modifications to avoid unnecessary repetition, and the present invention is not described separately for various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.
Claims (10)
1. A light guiding structure, characterized in that it comprises a first light guiding component (100) and a second light guiding component (200);
the first light guide assembly (100) comprises a first light guide plate (110), the first light guide plate (110) is provided with a first accommodating cavity (111) and an intermediate light-emitting area (112), the first accommodating cavity (111) is configured to accommodate a first light source (410), and the intermediate light-emitting area (112) is configured to receive light of the first light source (410) and transmit the light of the first light source (410) to the outside;
the second light guide assembly (200) includes a second light guide plate (210), the second light guide plate (210) has a second receiving cavity (211), a through hole (213), and an annular light emitting region (212), the second receiving cavity (211) is configured to be able to receive a second light source (420), the through hole (213) is disposed corresponding to the intermediate light emitting region (112) and completely exposes the intermediate light emitting region (112), the annular light emitting region (212) is disposed around a rim of the through hole (213), and the annular light emitting region (212) is configured to be able to receive light of the second light source (420) and transmit the light of the second light source (420) to the outside.
2. The light guide structure of claim 1, wherein the first light guide assembly (100) comprises a first light reflecting film (120) and a first light homogenizing film (130) respectively disposed on opposite sides of the first light guide plate (110).
3. The light guide structure of claim 2, wherein the first light guide assembly (100) comprises a first light blocking portion (140) overlying the first light homogenizing film (130) and completely exposing the middle light emitting area (112).
4. The light guide structure according to claim 1, wherein the second light guide assembly (200) comprises a second light reflecting film (220) and a second light homogenizing film (230) respectively disposed at two opposite sides of the second light guide plate (210), and the second light reflecting film (220) and the second light homogenizing film (230) respectively avoid the through holes (213) of the second light guide plate (210);
preferably, the second light guide assembly (200) comprises a second light shielding part (240) covering the second light homogenizing film (230) and completely exposing the annular light emitting area (212).
5. The light guide structure according to claim 1, characterized in that the light guide structure comprises a third light guide assembly (300), the third light guide assembly (300) comprising a third light guide plate (310) arranged in the through hole (213);
preferably, the third light guide assembly (300) includes a third light shielding part (320), a gap is provided between the third light guide plate (310) and an inner wall of the through hole (213), and the third light shielding part (320) is disposed in the gap.
6. A light guide structure according to any one of claims 1-5, wherein the first light guide assembly (100) and the second light guide assembly (200) are arranged in a stack, the first light guide assembly (100) being arranged below the second light guide assembly (200).
7. The light guide structure according to any one of claims 1 to 5, wherein the second light guide plate (210) has a mounting chamber, the through hole (213) communicates with the mounting chamber, the second receiving cavity (211) is disposed at a periphery of the mounting chamber in a radial direction of the second light guide plate (210), and the first light guide assembly (100) is mounted in the mounting chamber.
8. A light guide structure, comprising:
a first light guide plate (110);
a third light guide plate (310) upwardly protruded inside a portion of an upper surface of the first light guide plate (110);
a third light shielding part (320) disposed around the outer side of the periphery of the third light guide plate (310);
and a second light guide plate (210) having a through hole (213) and fitted to the outer side of the periphery of the third light shielding part (320) through the through hole (213), so that the second light guide plate (210) is laminated on the upper surface of the first light guide plate (110).
9. A light emitting device comprising a first light emitting assembly, a second light emitting assembly, and the light guiding structure of claim 6;
the first light emitting assembly comprises a first circuit board (510) and a first light source (410) arranged on the first circuit board (510), wherein the first light source (410) is arranged in the first accommodating cavity (111);
the second light emitting assembly includes a second circuit board (520) and a second light source (420) disposed on the second circuit board (520), the second light source (420) being disposed in the second receiving cavity (211), the second circuit board (520) being disposed between the first light guide assembly (100) and the second light guide assembly (200);
preferably, the first circuit board (510) and the second circuit board (520) are integrally formed flexible circuit boards.
10. A light emitting device comprising a third light emitting component and the light guiding structure of claim 7; the third light emitting assembly includes a third circuit board (530), a first light source (410) and a second light source (420) disposed on the third circuit board (530), the first light source (410) being disposed in the first receiving cavity (111), the second light source (420) being disposed in the second receiving cavity (211).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120328239.7U CN214310968U (en) | 2021-02-04 | 2021-02-04 | Light guide structure and light emitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120328239.7U CN214310968U (en) | 2021-02-04 | 2021-02-04 | Light guide structure and light emitting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214310968U true CN214310968U (en) | 2021-09-28 |
Family
ID=77833307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120328239.7U Active CN214310968U (en) | 2021-02-04 | 2021-02-04 | Light guide structure and light emitting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214310968U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11977250B2 (en) | 2022-03-31 | 2024-05-07 | Darfon Electronics Corp. | Lighting keyboard, backlight module and lighting substrate |
| TWI844308B (en) | 2022-10-05 | 2024-06-01 | 達方電子股份有限公司 | Backlight keyswitch and backlight module thereof |
| US12019261B2 (en) | 2021-08-25 | 2024-06-25 | Darfon Electronics Corp. | Illuminant circuit board, backlight module and lighting keyboard |
-
2021
- 2021-02-04 CN CN202120328239.7U patent/CN214310968U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12019261B2 (en) | 2021-08-25 | 2024-06-25 | Darfon Electronics Corp. | Illuminant circuit board, backlight module and lighting keyboard |
| US11977250B2 (en) | 2022-03-31 | 2024-05-07 | Darfon Electronics Corp. | Lighting keyboard, backlight module and lighting substrate |
| TWI844308B (en) | 2022-10-05 | 2024-06-01 | 達方電子股份有限公司 | Backlight keyswitch and backlight module thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214310968U (en) | Light guide structure and light emitting device | |
| US7703971B2 (en) | LED display | |
| US10551556B2 (en) | Light source device and light source unit comprising the same | |
| CN108390970B (en) | Support, input/output assembly and terminal | |
| CN111970394A (en) | Rear cover assembly and electronic equipment | |
| JP2007232995A (en) | Image display module | |
| CA1289534C (en) | Planar light emitting device | |
| EP3609168A1 (en) | Support, input/output assembly and terminal | |
| US11874490B2 (en) | Display apparatus | |
| CN113963975A (en) | Backlight module and luminous keyboard | |
| WO2019228055A1 (en) | Frame structure, input/output assembly, and electronic apparatus | |
| CN113099005B (en) | Electronic equipment | |
| EP3438521B1 (en) | Display device | |
| CN211575022U (en) | Light-transmitting module and display equipment | |
| US10088625B2 (en) | Backlight unit | |
| CN110290304B (en) | Depth camera and terminal | |
| CN112153185B (en) | Camera assembly and electronic equipment | |
| US10725222B2 (en) | Display device, electronic apparatus, and light guide unit | |
| CN107842760B (en) | Lamp assembly and sound box | |
| CN112379795A (en) | Display module and display device | |
| JP3201084U (en) | Planar light emitting device | |
| JP4603957B2 (en) | Wireless device | |
| CN217506327U (en) | Backlight module and display device | |
| JP2018026531A (en) | Light source device and light source unit including the same | |
| CN210166522U (en) | Light-transmitting member, light-transmitting module and electronic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |