CN110441959B - Circular screen backlight structure - Google Patents
Circular screen backlight structure Download PDFInfo
- Publication number
- CN110441959B CN110441959B CN201910722690.4A CN201910722690A CN110441959B CN 110441959 B CN110441959 B CN 110441959B CN 201910722690 A CN201910722690 A CN 201910722690A CN 110441959 B CN110441959 B CN 110441959B
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- light
- frame
- film
- caulking groove
- enhancement film
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
- G02F1/133385—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell with cooling means, e.g. fans
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133628—Illuminating devices with cooling means
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention relates to the technical field of backlight plates, and relates to a circular screen backlight source structure which comprises a bearing frame plate, wherein a reflective film, a light guide plate, a diffusion film, a lower brightness enhancement film and an upper brightness enhancement film are embedded in the bearing frame plate from bottom to top, a light source is arranged in the bearing frame plate, a polygonal caulking groove is formed in the bearing frame plate, the reflective film, the light guide plate, the diffusion film, the lower brightness enhancement film and the upper brightness enhancement film are all polygonal and matched with the caulking groove, a shading rubber frame is arranged on one side of the upper brightness enhancement film, which is far away from the bearing frame plate, and a circular light transmission area is arranged in the center of the shading rubber frame. The invention has the following effects: through circular shape light-transmitting zone, the light source that jets out from it will be circular, because the polygon sets up, light guide plate and each membrane homoenergetic can be fixed in the caulking groove, can not take place to rotate to make the board in a poor light can send stable circular light, improve the light degree of consistency of board in a poor light, optimize the display effect of display screen.
Description
Technical Field
The invention relates to the technical field of backlight plates, in particular to a circular screen backlight source structure.
Background
The backlight is a light source device for making the back of the liquid crystal display screen emit light. Since the lcd device itself is transparent and does not emit light, a backlight is needed to assist, and some indicators such as brightness and uniformity of the backlight have direct influence on the related performance of the lcd.
General board in a poor light is by stacking reflective membrane, light guide plate, diffusion barrier, the membrane of adding lustre to down in proper order in bearing the frame board, go up the membrane of adding lustre to and constitute, and led lamp shines into from one side of light guide plate, and the light that the light guide plate sent is shone after being reflected by the reflective membrane, shines and makes light can diffuse to the whole face on the diffusion barrier, and light jets out after passing through two-layer membrane of adding lustre to.
When the light guide plate is rectangular, the emitted light source is also rectangular, and when the light source in a circular shape needs to be scattered, the light source needs to be replaced with a circular light source. And because when the circular screen backlight of preparation, will use one set to be circular shape membrane module, jet out behind the led lamp source shines through circular light guide plate, but when circular light guide plate was placed in bearing the weight of the deckle board, its circumference can't be fixed by better, very easy emergence rotation during the use leads to light to wear to penetrate the route between the membrane module and probably change, and the light degree of consistency of board in a poor light, influences the display effect of display screen.
Disclosure of Invention
The invention aims to provide a circular screen backlight source structure, which can enable the backlight source to emit circular light more stably, improve the light uniformity of a backlight plate and optimize the display effect of a display screen.
The technical purpose of the invention is realized by the following technical scheme: the utility model provides a circular screen backlight structure, is including bearing the deckle board, inlay from bottom to top in bearing the deckle board and be equipped with reflective membrane, light guide plate, diffusion barrier, lower membrane and last membrane of adding lustre to, be provided with the light source in bearing the deckle board, it is equipped with on the deckle board and is polygonal caulking groove to bear the deckle board, reflective membrane, light guide plate, diffusion barrier, lower membrane of adding lustre to all be with last membrane of adding lustre to the polygon of caulking groove adaptation, it deviates from to go up the membrane of adding lustre to one side of bearing the deckle board is provided with the frame is glued to the shading, the frame center is glued to.
Through adopting above-mentioned technical scheme, when the light source is luminous, light shines on the light guide plate, the light that sends will jet out towards diffusion barrier one side under the effect of reflector film, light takes place the diffusion under the effect of diffusion barrier, and jet out after intensifying through the membrane of adding lustre to, because the printing opacity district in the frame is glued in the shading this moment, the light source that jets out from it will be circular, and light guide plate and various membrane will inlay and establish in the caulking groove in the use, because the polygon sets up, light guide plate and various membrane homoenergetic are fixed in the caulking groove, can not take place to rotate, thereby make the board of being shaded can send stable circular light, improve the light degree of consistency of board of being shaded, optimize the display effect of display screen.
The invention is further provided with: the caulking groove is regular octagon, the printing opacity district is the inscription circle of caulking groove, just be located on the bearing frame board the caulking groove all around have be used for with the connecting portion of the laminating of frame is glued in the shading.
Through adopting above-mentioned technical scheme, the printing opacity district sets up to inscribe in the circular back of caulking groove, can guarantee that the light that sends on the light guide plate of the same area can jet out through the printing opacity district more completely, increases the light yield, improves and shows luminance to the frame can be connected with connecting portion are glued in the shading.
The invention is further provided with: the bearing frame plate comprises a metal plate and a supporting frame, the caulking groove is formed in the supporting frame, and the metal plate is arranged on one side of the supporting frame and used for bearing the reflective film.
Through adopting above-mentioned technical scheme, when inlaying reflective membrane, light guide plate, diffusion barrier, lower membrane of adding lustre to and establishing to the caulking groove in with last membrane of adding lustre to, the light source is when luminous, and the heat of its production will be conducted by the metal sheet, avoids the heat gathering to lead to the possibility of membrane module deformation in the caulking groove.
The invention is further provided with: the inner wall on one side of the caulking groove is a bottom wall, a mounting groove for embedding the light source is formed in the bottom wall, and an extending piece extending into the mounting groove is arranged on the lower side of the reflective film.
Through adopting above-mentioned technical scheme, the light source embedding back in to the mounting groove will follow light guide plate one side and shine it, can reduce the holistic thickness of board in a poor light, through being located the mounting groove extend the piece with light reflection to the diffusion barrier betterly on, the condition that reduces the light leak takes place.
The invention is further provided with: the caulking groove is located the spacing groove has been seted up on the inner wall of diapire both sides, diffusion barrier, lower membrane, last membrane both sides that adds lustre to all are provided with spacing lug, two spacing groove line with diapire place side cross arrangement.
By adopting the technical scheme, the limiting lug can be embedded in the limiting groove during installation, and the connecting line of the two limiting grooves and the side edge where the bottom wall is located are arranged in a crossed manner, so that the corresponding limiting lug is embedded into the corresponding limiting groove during installation of each membrane assembly, thereby avoiding installation errors on the front side and the back side and facilitating installation.
The invention is further provided with: the connecting part is provided with a plurality of grooves, and the shading rubber frame is in bonding fit with the connecting part.
Through adopting above-mentioned technical scheme, at first after offering the recess, the heat on connecting portion can be dispelled through the recess to when bonding, the recess can increase the area of contact of frame and connecting portion are glued in the shading, thereby is convenient for install and fix.
The invention is further provided with: be provided with the frame on the border of carriage, be provided with the stopper on the frame inner wall, the stopper is close to one side of carriage is seted up and is supplied the shading to glue the frame and inlay the double-layered groove of establishing.
Through adopting above-mentioned technical scheme, when the frame is glued in the shading inlays the subassembly such as reflective membrane and establishes in the caulking groove, the frame is glued in the shading can not bond on connecting portion to the border of frame is glued in the shading will be embedded into to press from both sides the groove, thereby glue the frame to the shading and play further fixed.
The invention is further provided with: at least two first heat dissipation holes are formed in the metal plate and located below the connecting portion.
Through adopting above-mentioned technical scheme, because the backlight is when luminous, partly heat is passed through the metal sheet and is dispelled, and the heat on two connecting portion will be through first louvre effluvium, improves the radiating effect to reduce the possibility that bears the weight of deckle board deformation.
The invention is further provided with: the edge of the metal plate is turned upwards to form a supporting part used for wrapping the frame, and the supporting part is provided with a plurality of second heat dissipation holes.
Through adopting above-mentioned technical scheme, the firm degree of frame can be improved to the supporting part, forms the supporting effect to the frame, and when the supporting part has wrapped up the frame, the second louvre can play the effect of locating the heat effluvium of frame simultaneously, further optimizes the radiating effect.
In conclusion, the beneficial technical effects of the invention are as follows:
1. after the light guide plate and various films are arranged in the caulking groove, the light guide plate and various films can be fixed in the caulking groove and cannot rotate due to the polygonal arrangement, so that the backlight plate can emit stable circular light, the light uniformity of the backlight plate is improved, and the display effect of the display screen is optimized;
2. when the diffusion film, the lower brightness enhancement film and the upper brightness enhancement film are installed correctly, and the installation direction cannot be mistaken;
3. the metal plate part of caulking groove bottom can be with the heat effluvium that the lamp source produced when luminous to first louvre, second louvre can be with gathering the heat effluvium on carriage, frame, optimize the radiating effect of backlight, reduce the possibility that the subassembly is heated deformation in the use.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded schematic view of the present invention;
FIG. 3 is a schematic view of the connection among the carrier frame plate, the reflective film and the light guide plate;
FIG. 4 is an enlarged view of portion A of FIG. 3, showing a stopper;
FIG. 5 is a top view of the load bearing frame plate showing the spacing groove;
fig. 6 is an exploded view of another aspect of the present invention, showing the first heat dissipation hole.
Reference numerals: 100. a load-bearing frame plate; 110. a metal plate; 111. a support portion; 120. a support frame; 121. a frame; 130. caulking grooves; 131. a light-reflecting film; 132. a light guide plate; 133. a diffusion membrane; 134. a lower brightness enhancement film; 135. an upper brightness enhancement film; 136. a bottom wall; 137. mounting grooves; 138. an extension piece; 139. a light source; 140. a shading rubber frame; 141. a light-transmitting region; 142. a connecting portion; 143. a groove; 144. a limiting block; 145. a clamping groove; 150. a limiting groove; 151. a limiting bump; 152. a first heat dissipation hole; 153. a second heat dissipation hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A circular screen backlight source structure, refer to fig. 1 and fig. 2, includes a bearing frame plate 100, the bearing frame plate 100 includes a metal plate 110 and a supporting frame 120, the metal plate 110 is wrapped on one side of the supporting frame 120, a frame 121 is integrally arranged on one side of the supporting frame 120 far away from the metal plate 110, and a supporting portion 111 for wrapping the frame 121 is formed after the edge of the metal plate 110 is turned upwards.
Referring to fig. 2 and 3, an octagonal caulking groove 130 is formed in the supporting frame 120, the caulking groove 130 penetrates through the supporting frame 120, a reflective film 131, a light guide plate 132, a diffusion film 133, a lower light enhancement film 134 and an upper light enhancement film 135 are embedded in the caulking groove 130 from bottom to top, and the reflective film 131, the light guide plate 132, the diffusion film 133, the lower light enhancement film 134 and the upper light enhancement film 135 are all adapted to the caulking groove 130. The reflective film 131 is embedded in the embedding groove 130 and attached to the metal plate 110. The inner wall on one side of caulking groove 130 is diapire 136, set up mounting groove 137 on the diapire 136, reflective membrane 131 downside an organic whole is provided with the extension piece 138 that stretches into in the mounting groove 137, it has lamp source 139 to inlay in the mounting groove 137, lamp source 139 is the LED lamp strip in this embodiment, lamp source 139 inlays the back of establishing in mounting groove 137, its luminous end sets up towards one side of light guide plate 132, light jets out through light guide plate 132, through being located the extension piece 138 of mounting groove 137 with better reflection of light to diffusion barrier 133 on, the condition that reduces the light leak takes place.
Go up the membrane 135 that adds lustre to and deviate from one side of bearing the weight of the deckle board 100 and bond and have the shading and glue frame 140, the light source 139 bonds on the shading glues frame 140, and the shading glues frame 140 center and has and be circular shape printing opacity district 141, printing opacity district 141 is the inscribed circle of caulking groove 130, printing opacity district 141 sets up to inscribe in the circular back of caulking groove 130, can guarantee that the light that sends on the light guide plate 132 of the same area can penetrate through printing opacity district 141 completely, increase the light yield, improve display brightness.
Referring to fig. 3 and 4, the supporting frame plate 100 and the periphery of the caulking groove 130 are provided with a connecting portion 142 for being attached to the light-shielding rubber frame 140, the connecting portion 142 is provided with a plurality of grooves 143, and the light-shielding rubber frame 140 is bonded and matched with the connecting portion 142. A limiting block 144 is integrally arranged on the inner wall of the frame 121, and a clamping groove 145 for the light-shielding rubber frame 140 to be embedded is formed on one side of the limiting block 144 close to the supporting frame 120.
Referring to fig. 2 and 5, the inner wall of the bottom wall 136 on the caulking groove 130 is provided with a limiting groove 150, and the diffusion film 133, the lower light enhancement film 134, the uniform body on the two sides of the upper light enhancement film 135 is provided with a limiting lug 151, the connecting line of the two limiting grooves 150 and the side where the bottom wall 136 is located are arranged in a cross manner, when in installation, because the limiting grooves 150 on the two sides are different, the limiting lug 151 must be correctly embedded in the limiting groove 150, thereby ensuring that the diffusion film 133, the lower light enhancement film 134 and the upper light enhancement film 135 can be correctly installed, and avoiding wrong installation direction.
Referring to fig. 6, at least two first heat dissipation holes 152 are formed on the metal plate 110 and below the connecting portion 142, in the embodiment, three first heat dissipation holes 152 are formed, and a plurality of second heat dissipation holes 153 are formed on the supporting portion 111. When the backlight module emits light, most of the heat generated by the lamp source 139 will be dissipated through the metal plate 110, one part of the heat will be collected on the connecting portion 142 and will be dissipated through the first heat dissipating hole 152, and meanwhile, a part of the heat collected on the frame 121 will be dissipated through the second heat dissipating hole 153, so that the heat dissipating effect of the backlight source is optimized, and the possibility of thermal deformation of the module in the using process is reduced.
The implementation principle of the embodiment is as follows: the light-emitting film is embedded in the embedding groove 130 and attached to the metal plate 110, then the light guide plate 132 is placed above the reflective film 131, at this time, the light-shielding rubber frame 140, the upper light-shielding film 135, the lower light-shielding film 134 and the diffusion film 133 are stacked, after the limiting projection 151 corresponds to the limiting projection, the light-shielding rubber frame 140 is covered on the support frame 120, the light-shielding rubber frame 140 is bonded on the connecting portion 142, the limiting projection 151 is embedded in the limiting groove 150, and the light source 139 is embedded in the mounting groove 137.
When the light source 139 is lighted, light is irradiated on the light guide plate 132, the light emitted will be emitted towards the diffusion film 133 side under the effect of the reflective film 131, the light is diffused under the effect of the diffusion film 133, and is emitted after being brightened through the brightness enhancement film, at the moment, because the light-transmitting area 141 in the light-shading glue frame 140, the light source emitted therefrom will be circular, and the light guide plate 132 and various films will be embedded in the caulking groove 130 in the use process, because the polygon is arranged, the light guide plate 132 and various films can be fixed in the caulking groove 130, no rotation can be generated, so that the backlight plate can emit stable circular light, the light uniformity of the backlight plate is improved, and the display effect of the display screen is optimized.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (6)
1. The utility model provides a circular screen backlight structure, is including bearing framed panel (100), inlay in bearing framed panel (100) from bottom to top and be equipped with reflective membrane (131), light guide plate (132), diffusion barrier (133), add lustre to membrane (134) and last lustre to membrane (135) down, be provided with the light source in bearing framed panel (100), its characterized in that: a polygonal caulking groove (130) is formed in the bearing frame plate (100), the reflective film (131), the light guide plate (132), the diffusion film (133), the lower brightness enhancement film (134) and the upper brightness enhancement film (135) are all polygonal and matched with the caulking groove (130), a shading rubber frame (140) is arranged on one side, away from the bearing frame plate (100), of the upper brightness enhancement film (135), and a circular light-transmitting area (141) is arranged in the center of the shading rubber frame (140); the caulking groove (130) is in a regular octagon shape, the light transmitting area (141) is an inscribed circle of the caulking groove (130), and a connecting part (142) which is used for being attached to the shading rubber frame (140) is arranged on the bearing frame plate (100) and located on the periphery of the caulking groove (130); the inner wall of one side of the embedding groove (130) is a bottom wall (136), an installation groove (137) for embedding a light source is formed in the bottom wall (136), and an extension piece (138) extending into the installation groove (137) is arranged on the lower side of the reflective film (131); the embedded groove (130) is located limiting grooves (150) are formed in the inner walls of the two sides of the bottom wall (136), limiting lugs (151) are arranged on the two sides of the diffusion film (133), the lower light enhancement film (134) and the upper light enhancement film (135), and connecting lines of the limiting grooves (150) and the side edges where the bottom wall (136) are located are arranged in a crossed mode.
2. The circular screen backlight source structure as claimed in claim 1, wherein: the bearing frame plate (100) comprises a metal plate (110) and a supporting frame (120), the caulking groove (130) is formed in the supporting frame (120), and the metal plate (110) is arranged on one side of the supporting frame (120) and used for bearing the reflective film (131).
3. The circular screen backlight source structure as claimed in claim 2, wherein: the connecting part (142) is provided with a plurality of grooves (143), and the shading rubber frame (140) is in bonding fit with the connecting part (142).
4. The backlight structure of claim 3, wherein: the edge of the supporting frame (120) is provided with a frame (121), the inner wall of the frame (121) is provided with a limiting block (144), and one side of the limiting block (144) close to the supporting frame (120) is provided with a clamping groove (145) for embedding the shading rubber frame (140).
5. The backlight structure of claim 4, wherein: at least two first heat dissipation holes (152) are formed in the metal plate (110) and below the connecting portion (142).
6. The backlight structure of claim 5, wherein: the edge of the metal plate (110) is turned upwards to form a supporting part (111) used for wrapping the frame (121), and a plurality of second heat dissipation holes (153) are formed in the supporting part (111).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910722690.4A CN110441959B (en) | 2019-08-06 | 2019-08-06 | Circular screen backlight structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910722690.4A CN110441959B (en) | 2019-08-06 | 2019-08-06 | Circular screen backlight structure |
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| CN110441959A CN110441959A (en) | 2019-11-12 |
| CN110441959B true CN110441959B (en) | 2020-07-03 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051639B (en) * | 2020-09-11 | 2022-03-11 | 深圳市利航电子有限公司 | Bright backlight source structure |
| CN112331083A (en) * | 2020-11-17 | 2021-02-05 | 绿诺能源科技（深圳）有限公司 | Flat panel display device, display device array and method of manufacturing display device |
| TWI782489B (en) * | 2021-04-16 | 2022-11-01 | 友達光電股份有限公司 | Display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203431782U (en) * | 2013-07-01 | 2014-02-12 | 江西奥其斯科技有限公司 | Light-guide LED (Light-Emitting Diode) lamp |
| CN205782369U (en) * | 2016-07-05 | 2016-12-07 | 厦门京东方电子有限公司 | Backlight module and display device |
| CN206347394U (en) * | 2016-11-29 | 2017-07-21 | 信利半导体有限公司 | A kind of backlight and display module |
| US10061073B2 (en) * | 2017-01-20 | 2018-08-28 | Oculus Vr, Llc | Circular backlight for a liquid crystal display |
| CN207473247U (en) * | 2017-09-22 | 2018-06-08 | 京东方科技集团股份有限公司 | Backlight and display module |
| CN207924313U (en) * | 2018-03-06 | 2018-09-28 | 常州泉晋光电有限公司 | A kind of circle backlight module |
| CN208750489U (en) * | 2018-08-23 | 2019-04-16 | 佛山市顺德区拓欧玛五金有限公司 | A kind of area source circle shot-light |
| CN209182615U (en) * | 2018-12-29 | 2019-07-30 | 东莞市奕东电子有限公司 | A kind of anti-bright line structure of backlight source light conducting plate visible area |
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