CN111007682A - Backlight and mobile terminal - Google Patents
Backlight and mobile terminal Download PDFInfo
- Publication number
- CN111007682A CN111007682A CN201911327213.4A CN201911327213A CN111007682A CN 111007682 A CN111007682 A CN 111007682A CN 201911327213 A CN201911327213 A CN 201911327213A CN 111007682 A CN111007682 A CN 111007682A
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- China
- Prior art keywords
- backlight
- light
- great wall
- light source
- edge
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Classifications
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
Abstract
The invention relates to a backlight source and a mobile terminal, wherein the backlight source comprises a reflective film and an LED light bar, the reflective film comprises a near light source part close to the LED light bar and a far light source part far away from the LED light bar, and the edge of at least one side of the near light source part is provided with a bright edge prevention groove. According to the backlight source provided by the invention, after the LED lamp strip emits light, the bottom surface or the side surface enters the light guide plate, the light is transmitted and refracted in the light guide plate, part of the light is transmitted downwards and collides with the reflecting film to generate a reflecting effect, and the light is reflected back; the problem of prior art through at diffusion film edge silk screen printing black printing ink, optimize bright limit display effect, the cost is higher is solved.
Description
Technical Field
The invention relates to the technical field of backlight sources, in particular to a backlight source and a mobile terminal.
Background
The backlight (Back Light) is a Light source located behind a Liquid Crystal Display (LCD), and its Light emitting effect directly affects the visual effect of the liquid crystal display module (LCM). The backlight source is widely applied to industries such as touch screens, LCDs/LCMs, mobile phones, tablet computers, GPS (global positioning system), solar cells and the like; mainly comprises a light source, a light guide plate, an optical die sheet and a structural member; wherein, the light source mainly comprises three backlight source types of EL, CCFL and LED; the light guide plate is classified into printing, chemical Etching (Etching), precision mechanical engraving (V-cut), photolithography (Stamper), internal diffusion, and hot pressing; an optical mold sheet: brightness enhancement film/sheet, diffusion film/sheet, reflection sheet, black/white glue; the structural member has: backboard (iron backboard, aluminum backboard, plastic backboard, stainless steel backboard), rubber frame, lamp tube rack, aluminum section bar, aluminum base strip.
Common backlights include: glue indisputable frame, the light guide plate, reflectance coating and LED lamp strip, the light that LED lamp strip sent, get into the light guide plate from bottom surface or side, propagate inside the light guide plate, the refraction, partial light propagates downwards, collide with the reflectance coating and produce the reflection effect, go back light reflection, at the side of light guide plate and the integrated position of gluing indisputable frame, because light polymerization reason, can have the phenomenon of visible bright limit, solve this bad phenomenon in the trade at present, mainly be at diffusion coating edge silk screen printing black printing ink, optimize bright limit display effect, the cost is higher.
Therefore, the prior art has yet to be improved.
Disclosure of Invention
Therefore, it is necessary to provide a backlight source and a mobile terminal capable of at least performing one backlight source and solving the problem of high cost caused by optimizing the bright edge display effect by silk-printing black ink on the edge of the diffusion film in the prior art.
The technical scheme of the invention is as follows:
the utility model provides a backlight, includes reflective membrane and LED lamp strip, wherein, the reflective membrane includes the near light source portion that is close to LED lamp strip and the far light source portion that deviates from LED lamp strip, bright limit groove is prevented to the edge of at least one side of near light source portion.
In a further preferred aspect, the bright edge prevention groove is opened outside a VA region of the low-beam light source portion.
In a further preferred embodiment, the width of the bright edge prevention groove is between 0.2 mm and 0.5 mm.
In a further preferred mode, the length of the low-beam light source part is 1/4-1/2 of the total length of the reflective film.
In a further preferable scheme, the middle part of the bright side preventing groove is rectangular, and one end connected with the far light source part is triangular.
In a further preferable scheme, two anti-bright side grooves are formed in the upper surface of the lower light source part, and the two anti-bright side grooves are formed in the outer edges of the left side and the right side of the lower light source part respectively.
In a further preferred aspect, the backlight further includes: glue the chase, glue the chase including gluing frame and stainless steel backplate, it has a plurality of great wall positions to glue the frame and extend towards LED lamp strip one end inboard, and is a plurality of great wall position arranges in proper order and reserve between the adjacent great wall position to have and subtracts gluey clearance.
In a further preferred scheme, a plurality of the great wall positions are sequentially arranged from left to right at intervals.
In a further preferred scheme, the great wall position is in a shape of a convex, the glue reducing gap is in a rectangle, and the width and the depth of the glue reducing gap are respectively 1 mm and 0.65 mm.
A mobile terminal comprising a backlight as described above. Therefore, the mobile terminal can have all the characteristics and effects of the backlight source, and the description is omitted.
Compared with the prior art, the backlight source provided by the invention comprises the reflective film and the LED lamp strip, wherein the reflective film comprises a near light source part close to the LED lamp strip and a far light source part far away from the LED lamp strip, and the edge of at least one side of the near light source part is provided with the bright edge prevention groove. According to the backlight source provided by the invention, after the LED lamp strip emits light, the bottom surface or the side surface enters the light guide plate, the light is transmitted and refracted in the light guide plate, part of the light is transmitted downwards and collides with the reflecting film to generate a reflecting effect, and the light is reflected back; the problem of prior art through at diffusion film edge silk screen printing black printing ink, optimize bright limit display effect, the cost is higher is solved.
Drawings
FIG. 1 is a schematic view of a first viewing angle of a reflective film used in the present invention.
Fig. 2 is an enlarged view of a portion Z in fig. 1.
FIG. 3 is a schematic view of a second viewing angle of a reflective film used in the present invention.
Fig. 4 is an enlarged view of a portion X in fig. 3.
Fig. 5 is a schematic structural view of a conventional rubber frame.
Fig. 6 is a front view of a cement frame used in the preferred embodiment of the present invention.
Fig. 7 is a force analysis diagram of the stainless steel back plate when the linear plastic material shrinks in the conventional backlight source.
FIG. 8 is a graph of the local force analysis of the stainless steel backing plate when the great wall section of the present invention is contracted.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The lower end of the backlight source is a fixed end of an LED lamp strip, and two side edges of the lower end of the traditional backlight source have a relatively obvious bright edge phenomenon, especially the right side (the specific bright edge phenomenon is different according to different backlight source structures, some structures can cause the two side edges of the backlight source to generate bright edges, some structures can cause the left side edge of the backlight source to generate bright edges, some structures can cause the right side edge of the backlight source to generate bright edges, and for the side-lighting backlight source, the bright edge phenomenon can possibly occur at the upper end and/or the lower end).
The bright edge is a phenomenon caused by light polymerization at the edge of the light guide plate, if the light polymerized at the edge can be weakened, the condition of the bright edge can be improved, and the light directly emitted by the LED lamp strip at the position is not weakened, so that the light reflected to the position by the reflecting film can be reduced.
Based on the above-mentioned ideas, the backlight provided by the present invention includes a reflective film 300 (as shown in fig. 1 and 3) and an LED light bar, wherein the reflective film 300 includes a low-beam light source portion 310 and a high-beam light source portion 320, as shown in fig. 2; the important improvement of the present invention is that the outer edge of at least one side of the near light source portion 310 is provided with a bright edge preventing groove 311 (as shown in fig. 2, a dotted line a and a dotted line b in fig. 2 do not really exist, the dotted line a is drawn for clearly illustrating the position of the bright edge preventing groove 311, and the dotted line b is drawn for clearly illustrating the positions of the near light source portion 310 and the far light source portion 320), and the bright edge preventing groove 311 is arranged to prevent the light emitted thereto from being reflected by the reflective film 300, so as to reduce the light gathered directly above the bright edge preventing groove 311 and improve the bright edge condition.
According to the backlight source provided by the invention, after the LED lamp strip emits light, the bottom surface or the side surface enters the light guide plate, the light is transmitted and refracted in the light guide plate, part of the light is transmitted downwards and collides with the reflecting film to generate a reflecting effect, and the light is reflected back, and due to the arrangement of the bright edge preventing groove 311, the light transmitted to the position of the bright edge preventing groove 311 cannot be reflected back, so that the light at the position of the light guide plate corresponding to the bright edge preventing groove 311 is reduced, and the problem of bright edges is solved.
As a preferred embodiment of the present invention, the bright edge prevention groove 311 is opened outside a VA region (View Area) of the low light source part 310, so as to prevent a significant bright-dark delamination phenomenon; preferably, the width of the bright edge prevention groove 311 is between 0.2 mm and 0.5 mm.
Preferably, the length of the low-beam light source part 310 is 1/4 to 1/2 of the total length of the reflective film 300, and in particular, the length of the low-beam light source part 310 is 1/3 of the total length of the reflective film 300; since the bright edge phenomenon usually occurs at 1/3 (see fig. 1) of the reflective film 300 near one end of the LED light bar, the bright edge phenomenon can be improved in all structures by setting the length of the near light source portion 310 to 1/3 of the total length of the reflective film 300. Further, two bright edge preventing grooves 311 are formed, and the two bright edge preventing grooves 311 are formed in the outer edges of the left and right sides of the low-beam source portion 310, respectively.
In specific implementation, the middle of the bright edge preventing groove 311 is rectangular, and one end connected to the far light source 320 is triangular, that is, the outer edges of the near light source 310 and the far light source 320 are connected through an inclined surface 311a, so that the reflection area of light is gradually widened from the near light source 310 to the far light source 320, and a distinct interface is prevented from appearing in light change on the light guide plate.
As shown in fig. 5, in the conventional backlight, a linear plastic material 12 is disposed on the inner side facing one end of the LED light bar to connect the stainless steel back plate (in order to avoid label confusion, the stainless steel back plate in the prior art is not labeled in fig. 5), and in the process of gradually cooling the glue solution, the linear plastic material 12 is shrunk toward the middle, and meanwhile, a pulling force is applied to the end surface of the stainless steel back plate (the dotted line in fig. 5 is drawn for clearly defining the linear plastic material 12 and the body 11 of the glue frame 100, and does not exist, although the dotted line is connected up and down as a whole, the pulling force on the surface of the stainless steel back plate mainly comes from the linear plastic material 12), so that the stainless steel back plate is deformed toward the end from two sides to the middle, and finally the warping phenomenon occurs. If the use of glue solution can be reduced, and the pulling force when the linear plastic material 12 shrinks can be reduced, the deformation of the stainless steel back plate can be reduced, so that the stainless steel back plate meets the pre-configured requirements.
As an improvement of the above preferred embodiment, the backlight further includes a rubber frame, and the rubber frame includes: a rubber frame 100 and a stainless steel backplate 200, as shown in fig. 6; glue frame 100 and extend towards LED lamp strip one end inboard and have a plurality of great wall positions, it is a plurality of great wall position arranges in proper order and reserve between the adjacent great wall position and have the clearance of subtracting gluey.
The great wall is so called because its shape is similar to the great wall structure. It should be understood that the present invention does not specifically limit the width of each great wall, the width of the glue reducing gap between adjacent great walls, etc., as long as the glue reducing gap is reserved between adjacent great walls to separate the great walls, and when the great walls are contracted, the great walls exert a pulling force on the stainless steel backplate 200, so as to prevent the pulling force from concentrating on two sides of the stainless steel backplate 200.
As shown in fig. 6, a backlight source (the backlight source provided by the present invention does not involve structural improvement on the lower half portion, i.e. the end away from the LED lamp, and the improved structure has a smaller volume, so for clearly illustrating the improved portion, the present invention omits the structural illustration of the lower half portion of the backlight source, and enlarges the structural illustration of the improved portion), there are a plurality of great walls arranged in sequence as follows: a first great wall 111, a second great wall 112, a third great wall 113, a fourth great wall 114, a fifth great wall 115, a sixth great wall 116, a seventh great wall 117, an eighth great wall 118, a ninth great wall 119, a tenth great wall 120, an eleventh great wall 121, a twelfth great wall 122, a thirteenth great wall 123, a fourteenth great wall 124 and a fifteenth great wall 125 (the structure shown in the figure is exemplary and should not be considered as limiting, and the number, size and spacing distance between adjacent great walls can be adjusted by one skilled in the art).
Fig. 7 is a force analysis diagram of the stainless steel backplate 200 when the existing in-line plastic material shrinks; fig. 8 is a graph of a local force analysis of the stainless steel backplate 200 when the great wall contraction generates a pulling force. The present invention selects the stainless steel backplate 200 corresponding to the first great wall portion 111, the second great wall portion 112 and the third great wall portion 113 for stress analysis. When the great walls shrink to generate pulling force, the first great wall 111 shrinks from the two sides to the middle of the great wall and generates pulling forces F1, F2 and F3 applied to the stainless steel backplate 200 (since F3 is relatively small and acts on the stainless steel backplate 200 along the long side direction of the stainless steel backplate 200, it is negligible); similarly, the tension applied to the stainless steel backplate 200 when the second great wall portion 112, the third great wall portion 113 and other great wall portions contract is similar (the magnitude of the tension is different when the magnitude of the great wall portions are different). As can be seen from fig. 8, F1 and F2 are much smaller than the pulling force exerted on the stainless steel backplate 200 by the in-line plastic in fig. 7 (the force in fig. 7 is continuous and larger); although the great wall positions are provided with a plurality of great wall positions, the application positions of the pulling force are different when each great wall position contracts, so that the pulling forces at all the positions are not superposed together, and the deformation of the backlight source disclosed by the invention during contraction is far smaller than that of the conventional backlight source.
As a preferred embodiment of the present invention, the great wall locations are sequentially arranged from left to right, and are respectively a first great wall location 111, a second great wall location 112, … … and an nth great wall location, and the shapes and sizes of the first great wall location 111, the second great wall location 112, … … and the nth great wall location are the same; that is, all the great walls are configured by the same parts, so that the design and manufacture of the injection mold are facilitated on one hand, and the tension applied to the stainless steel backboard 200 by all the great walls during the contraction is ensured to be the same on the other hand.
Furthermore, the first great wall 111, the second great wall 112, the … … and the nth great wall are sequentially arranged from left to right at intervals, that is, all the glue reducing gaps are the same in size, so that the connection stability of the glue frame 100 and the stainless steel backboard 200 is ensured (the glue frame 100 and the stainless steel backboard 200 have a plurality of connection points and the distances between the connection points are completely the same) under the structure, and the contraction tension applied to the stainless steel backboard 200 corresponding to each glue reducing gap is ensured to be the same, so that the performance of the molded backlight source is easier to control.
According to another aspect of the invention, the great wall portion is in a shape of a Chinese character 'tu', and the glue reducing gap is in a rectangular shape. The great wall is arranged in a convex shape, on one hand, the connection stability between the rubber frame 100 and the stainless steel back plate 200 is ensured through the part with larger width, and the reduction of the connection stability between the rubber frame and the stainless steel back plate due to the overlarge rubber reduction gap is prevented; on the other hand, the connection stability between the rubber frame 100 and the stainless steel backboard 200 is further improved by the part with smaller width (the connection stability between the rubber frame 100 and the stainless steel backboard 200 can be improved by increasing the combination area of the rubber frame 100 and the stainless steel backboard 200), and meanwhile, the increase of the contraction tension caused by overlong great wall is prevented; the rectangular glue reducing gap is caused by the convex shape of the great wall.
Tests show that the width and the depth of the glue reducing gap are respectively the glue amount reduced by 1 mm and 0.65 mm, so that the adjacent great wall positions are exactly completely separated, and the gap between the adjacent great wall positions is not too large, so that the connection stability between the glue frame 100 and the stainless steel back plate 200 is insufficient due to the fact that the bonding area between the glue frame 100 and the stainless steel back plate is too small.
The invention also provides a backlight source, which comprises the backlight source. Therefore, the backlight source can have all the characteristics and effects of the backlight source, and the description is omitted.
The invention also provides a mobile terminal which comprises the backlight source. Therefore, the mobile terminal can have all the characteristics and effects of the backlight source, and the description is omitted.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides a backlight, includes reflective membrane and LED lamp strip, its characterized in that, the reflective membrane is including the near light source portion that is close to LED lamp strip and the far light source portion that deviates from LED lamp strip, bright limit groove is prevented to the edge of at least one side of near light source portion.
2. The backlight of claim 1, wherein the bright edge prevention groove is open outside a VA region of the low-beam light source section.
3. The backlight of claim 2, wherein the anti-glare edge grooves have a width of between 0.2 mm and 0.5 mm.
4. The backlight of claim 1, wherein the low-beam portion has a length 1/4-1/2 of the total length of the retroreflective sheeting.
5. The backlight of claim 1, wherein the anti-glare groove has a rectangular central portion and a triangular end connected to the far-light source.
6. The backlight source as claimed in any one of claims 1 to 5, wherein the bright edge preventing grooves are provided in two, and the two bright edge preventing grooves are provided in the outer edges of the left and right sides of the low-beam light source portion, respectively.
7. The backlight of any one of claims 1-5, further comprising: glue the chase, glue the chase including gluing frame and stainless steel backplate, it has a plurality of great wall positions to glue the frame and extend towards LED lamp strip one end inboard, and is a plurality of great wall position arranges in proper order and reserve between the adjacent great wall position to have and subtracts gluey clearance.
8. The backlight of claim 7, wherein the great wall locations are sequentially spaced from left to right.
9. The backlight of claim 7, wherein the great wall is "convex" and the glue reduction gaps are rectangular and have a width and a depth of 1 mm and 0.65 mm, respectively.
10. A mobile terminal, characterized in that it comprises a backlight according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911327213.4A CN111007682A (en) | 2019-12-20 | 2019-12-20 | Backlight and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911327213.4A CN111007682A (en) | 2019-12-20 | 2019-12-20 | Backlight and mobile terminal |
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| CN111007682A true CN111007682A (en) | 2020-04-14 |
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| CN201911327213.4A Pending CN111007682A (en) | 2019-12-20 | 2019-12-20 | Backlight and mobile terminal |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203797584U (en) * | 2014-01-23 | 2014-08-27 | 深圳市德仓科技有限公司 | Plastic frame, backlight module and display device |
| CN203982023U (en) * | 2014-07-07 | 2014-12-03 | 深圳市德仓科技有限公司 | A kind of glue iron integrated frame, backlight module, liquid crystal module and liquid crystal display |
| CN204026346U (en) * | 2014-07-31 | 2014-12-17 | 伟志光电（深圳）有限公司 | A kind of LED is non-all apart from the cell phone back light source of grouping arrangement |
| CN205657781U (en) * | 2016-02-29 | 2016-10-19 | 鸿利智汇集团股份有限公司 | Reflecting sheet and backlight module |
| CN205844697U (en) * | 2016-06-29 | 2016-12-28 | 合肥惠科金扬科技有限公司 | Anti-bright band backlight module and liquid crystal display |
| CN206093676U (en) * | 2016-06-29 | 2017-04-12 | 合肥惠科金扬科技有限公司 | Edge -in backlight module and thin display |
| WO2017067217A1 (en) * | 2015-10-23 | 2017-04-27 | 京东方科技集团股份有限公司 | Plastic frame assembly, backlight, and display device |
| WO2017076124A1 (en) * | 2015-11-04 | 2017-05-11 | 京东方科技集团股份有限公司 | Backlight source plastic/metal structure, preparation method therefor, backlight source, and display device |
| CN206363049U (en) * | 2016-10-14 | 2017-07-28 | 深圳市隆利科技股份有限公司 | A kind of glue iron construction of mobile phone backlight component |
| CN206757257U (en) * | 2017-05-17 | 2017-12-15 | 深圳市德仓科技有限公司 | A kind of glue frame and backlight module |
| CN207037301U (en) * | 2017-07-26 | 2018-02-23 | 深圳同兴达科技股份有限公司 | A kind of reflectance coating of the anti-side bright line of LCM modules |
| CN208488910U (en) * | 2018-07-10 | 2019-02-12 | 深圳同兴达科技股份有限公司 | A kind of anti-translucent construction of display screen |
| CN209471315U (en) * | 2019-01-25 | 2019-10-08 | 河源鑫智胜电子有限公司 | A kind of glue iron construction |
| CN209690553U (en) * | 2019-05-14 | 2019-11-26 | 青岛卓英社科技股份有限公司 | A kind of reflector plate solving display bright border |
-
2019
- 2019-12-20 CN CN201911327213.4A patent/CN111007682A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203797584U (en) * | 2014-01-23 | 2014-08-27 | 深圳市德仓科技有限公司 | Plastic frame, backlight module and display device |
| CN203982023U (en) * | 2014-07-07 | 2014-12-03 | 深圳市德仓科技有限公司 | A kind of glue iron integrated frame, backlight module, liquid crystal module and liquid crystal display |
| CN204026346U (en) * | 2014-07-31 | 2014-12-17 | 伟志光电（深圳）有限公司 | A kind of LED is non-all apart from the cell phone back light source of grouping arrangement |
| WO2017067217A1 (en) * | 2015-10-23 | 2017-04-27 | 京东方科技集团股份有限公司 | Plastic frame assembly, backlight, and display device |
| WO2017076124A1 (en) * | 2015-11-04 | 2017-05-11 | 京东方科技集团股份有限公司 | Backlight source plastic/metal structure, preparation method therefor, backlight source, and display device |
| CN205657781U (en) * | 2016-02-29 | 2016-10-19 | 鸿利智汇集团股份有限公司 | Reflecting sheet and backlight module |
| CN206093676U (en) * | 2016-06-29 | 2017-04-12 | 合肥惠科金扬科技有限公司 | Edge -in backlight module and thin display |
| CN205844697U (en) * | 2016-06-29 | 2016-12-28 | 合肥惠科金扬科技有限公司 | Anti-bright band backlight module and liquid crystal display |
| CN206363049U (en) * | 2016-10-14 | 2017-07-28 | 深圳市隆利科技股份有限公司 | A kind of glue iron construction of mobile phone backlight component |
| CN206757257U (en) * | 2017-05-17 | 2017-12-15 | 深圳市德仓科技有限公司 | A kind of glue frame and backlight module |
| CN207037301U (en) * | 2017-07-26 | 2018-02-23 | 深圳同兴达科技股份有限公司 | A kind of reflectance coating of the anti-side bright line of LCM modules |
| CN208488910U (en) * | 2018-07-10 | 2019-02-12 | 深圳同兴达科技股份有限公司 | A kind of anti-translucent construction of display screen |
| CN209471315U (en) * | 2019-01-25 | 2019-10-08 | 河源鑫智胜电子有限公司 | A kind of glue iron construction |
| CN209690553U (en) * | 2019-05-14 | 2019-11-26 | 青岛卓英社科技股份有限公司 | A kind of reflector plate solving display bright border |
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Application publication date: 20200414 |