CN201487869U - Back plate structure, backlight module and liquid crystal display device - Google Patents
Back plate structure, backlight module and liquid crystal display device Download PDFInfo
- Publication number
- CN201487869U CN201487869U CN 200920138270 CN200920138270U CN201487869U CN 201487869 U CN201487869 U CN 201487869U CN 200920138270 CN200920138270 CN 200920138270 CN 200920138270 U CN200920138270 U CN 200920138270U CN 201487869 U CN201487869 U CN 201487869U
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- plate body
- board structure
- back board
- backlight module
- reflecting slant
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Abstract
The utility model discloses a back plate structure, a backlight module and a liquid crystal display device, wherein the back plate structure comprises a plate body, a plurality of through holes and a plurality of reflection inclined planes; the plate body is integrally formed by plastic materials; the through holes are formed on the plate body and used for configuring light source; the reflection inclined planes are respectively formed around the through holes, positioned on one side of the plate body and used for reflecting light of the light source. The back plate structure can be applied in backlight modules and liquid crystal display devices.
Description
[technical field]
The utility model is about a kind of back board structure, backlight module and liquid crystal indicator, and particularly relevant for the backlight module and the liquid crystal indicator of plastic back plate structure and application thereof.
[background technology]
LCD has that high image quality, volume are little, in light weight, low driving voltage, with advantage such as low consumpting power, therefore be widely used in various communications or electronic product.The LCD major part is the backlight LCD, and it is made up of display panels and backlight module.Therefore, backlight module is one of spare part quite crucial in the LCD.Backlight module can be divided into two kinds of side direction type light inlet and straight-down negative light inlets according to the difference of light source incoming position, to provide LCD one area source.
For the straight-down negative light inlet illustrates, at this moment, backlight module can be provided with a plurality of light sources and reflector plate on a backboard with the backlight module, and reflector plate is used for the light of reflection source, and can improve the effect backlight of backlight module.
Yet this reflector plate need utilize adhesive tape to fix on backboard usually, thereby increases the adhesive tape cost, and human cost and built-up time, and then increases the assembly cost and the time of backlight module.
Moreover when the size of LCD increased gradually, the light source of backlight module was provided with quantity and also needs corresponding increasing, to guarantee backlight illumination.Yet, because reflector plate need be provided with opening and expose light source, when the size of backlight module increase or light source quantity is set more and more for a long time, increase the location difficulty between reflector plate and the light source more easily, and then increase the assembling difficulty of backlight module.And when the perforate of reflector plate not exactly when being positioned at light source, cause local phaeodium easily, thereby influence the uniformity of luminance of backlight module.
[utility model content]
One of technical problem to be solved in the utility model is to provide a kind of back board structure, and this back board structure can form reflecting slant around light source, omits the setting of reflector plate, thereby can save the built-up time of reflector plate and cost is set.
Two of technical problem to be solved in the utility model is to provide a kind of backlight module, comprises above-mentioned back board structure.
Three of technical problem to be solved in the utility model is to provide a kind of liquid crystal indicator, and above-mentioned backlight module can be applicable in this liquid crystal indicator.
The utility model one of solves the problems of the technologies described above by the following technical solutions:
A kind of back board structure comprises:
One plate body is to come one-body molded by a plastic material;
Plurality of through holes is opened on this plate body, is used for wearing a plurality of light sources; And
A plurality of reflecting slant, be formed at each through hole around, and be positioned on the side of this plate body, be used for reflecting the light of described light source.
Described plastic material is high impact polystyrene, to polypropylene, polymethyl methacrylate, Merlon or polyether-ether-ketone.
Described plastic material is doped with metal or glass fibre.
Described plate body has a side frame, its be formed at this plate body around.
What described side frame was shaped in states on the plate body.
The interior side-wall surface of described plate body and described side frame is coated with highly reflective material.
Also comprise: an end difference, be formed on the described side frame, be used for being provided with a blooming piece.
Wherein said reflecting slant is a clinoplain.
Wherein said reflecting slant is the inclination curved surface.
Wherein said reflecting slant is the inclined-plane of evagination.
Wherein said reflecting slant is the inclined-plane of indent.
Also comprise: a plurality of protuberances, it is formed on the side of described plate body, and the surface of wherein said protuberance forms described reflecting slant.
Wherein said protuberance is selected from by wherein a kind of in taper protuberance, pyramid protuberance, hemispherical protuberance and the prismatic protuberance.
Also comprise: a plurality of recesses, it is formed on the side of described plate body, and the inner surface of wherein said recess forms described reflecting slant.
Wherein said recess is selected from by wherein a kind of in hemispherical concave depressions, arc-shaped depression portion and the tapered recess.
Wherein inequality to the spacing between the described reflecting slant of small part.
Wherein to all or part of difference in the angle of inclination of the described reflecting slant of small part.
The utility model solve the problems of the technologies described above by the following technical solutions two:
A kind of backlight module comprises:
One back board structure comprises:
One plate body is to come one-body molded by a plastic material;
Plurality of through holes is opened on the described plate body; And
A plurality of reflecting slant, be formed at described through hole around, and be positioned on the side of described plate body; And
A plurality of light sources are arranged in the described through hole of described plate body, and the light of wherein said light source reflects via described reflecting slant.
Also comprise:
One circuit board is electrically connected at described light source, and is arranged at the opposite side of described plate body.
Wherein said circuit board is printed circuit board (PCB) or flexible printed wiring board.
Wherein said light source is light emitting diode, Organic Light Emitting Diode or EL component.
Also comprise:
At least one blooming piece, it is selected from diffusion sheet, prismatic lens and the brightness enhancement film at least a.
The utility model solve the problems of the technologies described above by the following technical solutions three:
A kind of liquid crystal indicator comprises:
One display panels; And
One backlight module is used to provide the described display panels that comes from backlight, and wherein this backlight module comprises:
One back board structure comprises:
One plate body is to come one-body molded by a plastic material;
Plurality of through holes is opened on the described plate body; And
A plurality of reflecting slant, be formed at described through hole around, and be positioned on the side of described plate body; And
A plurality of light sources are arranged in the described through hole of described plate body, and wherein the light of this light source reflects via described reflecting slant.
Advantage of the present utility model is: the backlight module of back board structure described in the utility model and application thereof and liquid crystal indicator can omit the setting of reflector plate, to save built-up time and cost.And back board structure comes one-body molded with plastic material, and has light-weighted effect.
[description of drawings]
The utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the display panels of the utility model one embodiment and the generalized section of backlight module.
Fig. 2 A to Fig. 2 C is the partial cutaway schematic of the back board structure of the utility model one embodiment.
Fig. 3 A and Fig. 3 B are the partial cutaway schematic of the back board structure of another embodiment of the utility model.
The partial cutaway schematic of Fig. 4 A and other back board structures of Fig. 4 B the utility model.
[specific embodiment]
Please refer to Fig. 1, is the display panels of the new embodiment of this practicality and the generalized section of backlight module.The back board structure 110 of present embodiment can be applicable to backlight module 100, and it is preferably direct type backlight module, is used to provide backlight coming from the display panels 200, thereby backlight module 100 and display panels 200 can form liquid crystal indicator.As shown in Figure 1, backlight module 100 comprises back board structure 110, a plurality of light source 120, circuit board 130 and at least one blooming piece 140.Back board structure 110 is used for installing light source 120, circuit board 130 and blooming piece 140.Light source 120 is arranged on the circuit board 130, and passes back board structure 110 and emit beam.Circuit board 130 is electrically connected at light source 120, and it is luminous to be used for controlling light source 120.Blooming piece 140 is to be arranged at light source 120 tops, is used for improving briliancy backlight, colourity, uniformity or luminous efficiency.
As shown in Figure 1, the back board structure 110 of present embodiment comprises plate body 111, plurality of through holes 112 and reflecting slant 113.Plate body 111 comes one-body molded with plastic material, for example can use integrated methods such as machining, die casting or ejection formation to make, this plastic material is for example: high impact polystyrene (HIPS), to polypropylene (PP), polymethyl methacrylate (PMMA), Merlon (PC) or polyether-ether-ketone plastic materials such as (PEEK), and this plastic material can be doped with metal (for example plumbous) or glass fibre (or carbon fiber), to promote the strength of materials.In this embodiment, plate body 111 is for example one-body molded with white plastic material (PC that for example has highly reflective) institute, to promote the light reflecting effect.Can form side frame 114 around this plate body 111, form the mixed light chamber between plate body 111 and side frame 114.Wherein side frame 114 also can be plastic material, and is shaped on the plate body 111, so is not limited thereto, and in these a little embodiment, side frame 114 can be metal or plastic material, and the assembling or be fixed on the plate body 111.The interior side-wall surface of plate body 111 and side frame 114 can be coated with highly reflective material, to promote the light reflecting effect.In addition, can add white reflecting material (as titanium dioxide) in the plastic material.
As shown in Figure 1, in the present embodiment, back board structure 110 also can comprise end difference 115 and support column (not illustrating).End difference 115 is formed on the side frame 114, is used for being provided with blooming piece 140 on back board structure 110.Support column is arranged on the side of plate body 111, is used for support of optical diaphragm 140, avoids blooming piece 140 because of weight own the deflection situation to take place.This support column can be shaped on the plate body 111, so is not limited thereto, and support column also can utilize and be embedded, pressing, hard solder, welding, close-fitting, stick together or spiral shell is solid etc. that mode is arranged on the plate body 111.
As shown in Figure 1, the through hole 112 of the back board structure 110 of present embodiment can be the hole of arbitrary shape (as circle or rectangle), and it is opened in plate body 111, is used for wearing these light sources 120.Therefore, each light source 120 can be embedded in the through hole 112, and the light of light source 120 can come bright dipping by through hole 112, and is incident to blooming piece 140.The reflecting slant 113 of back board structure 110 be formed at each through hole 112 around, and be positioned on the side of plate body 111, be used for the light of reflection source 120.Reflecting slant 113 can be clinoplain or inclination curved surface, has the angle θ less than 90 degree between the bottom surface of itself and plate body 111.Reflecting slant 113 can be formed by light reflection structure 101, and light reflection structure 101 can form the concaveconvex structure that height rises and falls, and it is positioned at a side of plate body 111, and is positioned at the bright dipping side of plate body 111, comes the light of reflection source 120 in order to form reflecting slant 113.
Please refer to Fig. 1 and Fig. 2 A to Fig. 2 C, Fig. 2 A to Fig. 2 C is the partial cutaway schematic of the back board structure of an embodiment of the present utility model.In this embodiment, the light reflection structure 101 of back board structure 110a for example is made of a plurality of protuberance 101a, for example be the protuberance of taper (shown in Fig. 2 A), pyramid (shown in Fig. 2 B), hemispherical (shown in Fig. 2 C) or prismatic, it can evenly distribute and one-body molded being convexly set on the bright dipping side of plate body 111a.At this moment, through hole 112a is opened between these protuberances 101a, and the surface of protuberance 101a can form reflecting slant 113a, thereby the reflecting slant 113a of formation evagination is around through hole 112a.
Please refer to Fig. 1 and Fig. 3 A and Fig. 3 B, Fig. 3 A and Fig. 3 B are the partial cutaway schematic of the back board structure of another embodiment of the present utility model.In this embodiment, the light reflection structure 101 of back board structure 110b for example is a plurality of recess 101b, it for example is the recess of hemispherical (as shown in Figure 3A), arc or taper (shown in Fig. 3 B), it can evenly distribute and one-body molded being arranged with on the bright dipping side of plate body 111b, at this moment, through hole 112b can be opened in the bottom of each recess 101b, and the inner surface of recess 101b can form reflecting slant 113b, thereby the reflecting slant 113b of formation indent is around through hole 112b.
As shown in Figure 1, the light source 120 of present embodiment for example is a spot light, and as light emitting diode (LED), Organic Light Emitting Diode (OLED) or EL component (EL), it is arranged on the circuit board 130, and be arranged in the through hole 112 of back board structure 110, by emitting beam in the through hole 112.Circuit board 130 for example is printed circuit board (PCB) (PCB) or flexible printed wiring board (FPC), and it is arranged at the relative opposite side of back board structure 110, that is is positioned at the bottom surface of back board structure 110, to control the luminous of light source 120.The blooming piece 140 of present embodiment for example is: diffusion sheet, prismatic lens, brightness enhancement film, diffuser plate or above-mentioned any combination, it is arranged at the top of back board structure 110, and preferable and light source 120 has predeterminable range, in order to improve the illumination effect of light source 120.
When the light source 120 of present embodiment was luminous, its light can be by through hole 112 bright dippings, and can utilize the reflecting slant 113 that is provided by the setting of protuberance or recess around through hole 112 to reflect, to promote the luminous intensity and the backlight efficiency of backlight module 100.Therefore, the back board structure 110 of present embodiment can omit the setting of reflector plate, with the built-up time of saving reflector plate and cost is set, and then can reduce the cost and the built-up time of backlight module 100.Moreover, because that the back board structure 110 of backlight module 100 comes with plastic material is one-body molded, and omits reflector plate is set, thereby can reduce overall weight, reach light-weighted effect.
Please refer to Fig. 4 A and Fig. 4 B, is the partial cutaway schematic of the back board structure of embodiment more of the present utility model.It should be noted that, in these embodiments, the reflected range of the spacing d2 between the spacing d1 between these light sources 120, these reflecting slant 113, the tilt angle theta of reflecting slant 113 or reflecting slant 113 can be complied with actual user demand, can distinguish neither same, perhaps part is identical and partly different, to adjust backlight intensity or light reflecting effect.Bright for instance, will be understood that usually, the luminous intensity in the zone between the light source 120 usually a little less than, perhaps because of the brightness difference of current strength difference light source 120, thereby on backlight module 100, form different clear zone and the dark spaces of brightness.At this moment, can corresponding adjust spacing d1, the spacing d2 of reflecting slant 113 of light source 120, the tilt angle theta or the reflected range of reflecting slant 113, increasing the dark space or to change other regional luminous intensity, and promote backlight uniformity.
By the foregoing description as can be known, the backlight module of back board structure of the present utility model and application thereof and liquid crystal indicator can omit reflector plate is set, and with the built-up time of saving reflector plate and cost is set, and can reduce the cost and the built-up time of backlight module.And back board structure comes one-body molded with plastic material, thereby has light-weighted effect.
Though the utility model discloses as above with embodiment; right its is not in order to limit the utility model; anyly have the knack of this skill person; in not breaking away from spirit and scope of the present utility model; when being used for a variety of modifications and variations, therefore protection domain of the present utility model is as the criterion when looking the accompanying Claim book person of defining.
Claims (20)
1. back board structure is characterized in that: comprise:
One plate body is to come one-body molded by a plastic material;
Plurality of through holes is opened on this plate body, is used for wearing a plurality of light sources; And
A plurality of reflecting slant, be formed at described through hole around, and be positioned on the side of this plate body, be used for reflecting the light of described light source.
2. back board structure as claimed in claim 1 is characterized in that: wherein said plastic material is high impact polystyrene, to polypropylene, polymethyl methacrylate, Merlon or polyether-ether-ketone.
3. back board structure as claimed in claim 1 is characterized in that: wherein said plate body has a side frame, its be formed at described plate body around.
4. back board structure as claimed in claim 3 is characterized in that: wherein said side frame is shaped on the described plate body.
5. back board structure as claimed in claim 3 is characterized in that: the interior side-wall surface of wherein said plate body and described side frame is coated with highly reflective material.
6. back board structure as claimed in claim 3 is characterized in that: also comprise:
One end difference is formed on the described side frame, is used for being provided with a blooming piece on this back board structure.
7. as claim 1 a described back board structure, it is characterized in that: wherein said reflecting slant is clinoplain or inclination curved surface.
8. back board structure as claimed in claim 1 is characterized in that: wherein said reflecting slant is the inclined-plane of evagination or the inclined-plane of indent.
9. back board structure as claimed in claim 1 is characterized in that: also comprise:
A plurality of protuberances, it is formed on the side of described plate body, and the surface of wherein said protuberance forms described reflecting slant.
10. back board structure as claimed in claim 9 is characterized in that: wherein said protuberance is selected from taper protuberance, pyramid protuberance, hemispherical protuberance and the prismatic protuberance wherein a kind of.
11. back board structure as claimed in claim 1 is characterized in that: also comprise:
A plurality of recesses, it is formed on the side of described plate body, and the inner surface of wherein said recess forms described reflecting slant.
12. back board structure as claimed in claim 11 is characterized in that: wherein said recess is selected from by wherein a kind of in hemispherical concave depressions, arc-shaped depression portion and the tapered recess.
13. back board structure as claimed in claim 1 is characterized in that: wherein inequality to the spacing between the described reflecting slant of small part.
14. back board structure as claimed in claim 1 is characterized in that: wherein to all or part of difference in the angle of inclination of the described reflecting slant of small part.
15. a backlight module is characterized in that: comprise:
One back board structure comprises:
One plate body is to come one-body molded by a plastic material;
Plurality of through holes is opened on the described plate body; And
A plurality of reflecting slant, be formed at described through hole around, and be positioned on the side of described plate body;
And
A plurality of light sources are arranged in the described through hole of described plate body, and the light of wherein said light source reflects via described reflecting slant.
16. backlight module as claimed in claim 15 is characterized in that: also comprise:
One circuit board is electrically connected at described light source, and is arranged at the opposite side of described plate body.
17. backlight module as claimed in claim 16 is characterized in that: wherein said circuit board is printed circuit board (PCB) or flexible printed wiring board.
18. backlight module as claimed in claim 15 is characterized in that: wherein said light source is light emitting diode, Organic Light Emitting Diode or EL component.
19. backlight module as claimed in claim 15 is characterized in that: also comprise:
At least one blooming piece, it is selected from diffusion sheet, prismatic lens and the brightness enhancement film at least a.
20. a liquid crystal indicator is characterized in that: comprise:
One display panels; And
One backlight module is used to provide the described display panels that comes from backlight, and wherein this backlight module comprises:
One back board structure comprises:
One plate body is to come one-body molded by a plastic material;
Plurality of through holes is opened on the described plate body; And
A plurality of reflecting slant, be formed at described through hole around, and be positioned on the side of described plate body; And
A plurality of light sources are arranged in the described through hole of described plate body, and wherein the light of this light source reflects via described reflecting slant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920138270 CN201487869U (en) | 2009-05-14 | 2009-05-14 | Back plate structure, backlight module and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920138270 CN201487869U (en) | 2009-05-14 | 2009-05-14 | Back plate structure, backlight module and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201487869U true CN201487869U (en) | 2010-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920138270 Expired - Fee Related CN201487869U (en) | 2009-05-14 | 2009-05-14 | Back plate structure, backlight module and liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201487869U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102262840A (en) * | 2010-05-28 | 2011-11-30 | 昆山榕增光电科技有限公司 | Frameless panel and method for manufacturing frameless panel |
| CN102691940A (en) * | 2012-06-01 | 2012-09-26 | 深圳市华星光电技术有限公司 | Edge type backlight module |
| CN103307504A (en) * | 2012-03-09 | 2013-09-18 | 青岛海信电器股份有限公司 | Backlight module and television |
| WO2013152500A1 (en) * | 2012-04-12 | 2013-10-17 | 深圳市华星光电技术有限公司 | Backlight module and corresponding liquid crystal display device |
| CN104977752A (en) * | 2014-04-07 | 2015-10-14 | 三星显示有限公司 | Display apparatus |
| CN106471407A (en) * | 2014-07-08 | 2017-03-01 | 飞利浦照明控股有限公司 | For by light from light source couples to optical plate in luminaire |
| CN110119049A (en) * | 2019-03-18 | 2019-08-13 | 东莞市托普莱斯光电技术有限公司 | A kind of direct-light type LED backlight mould group |
| US10976602B2 (en) | 2018-11-23 | 2021-04-13 | Xiamen Tianma Micro-Electronics Co., Ltd. | Backlight module and display device |
| CN113140151A (en) * | 2020-01-16 | 2021-07-20 | 群创光电股份有限公司 | Backlight module and display device |
-
2009
- 2009-05-14 CN CN 200920138270 patent/CN201487869U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102262840A (en) * | 2010-05-28 | 2011-11-30 | 昆山榕增光电科技有限公司 | Frameless panel and method for manufacturing frameless panel |
| CN103307504A (en) * | 2012-03-09 | 2013-09-18 | 青岛海信电器股份有限公司 | Backlight module and television |
| WO2013152500A1 (en) * | 2012-04-12 | 2013-10-17 | 深圳市华星光电技术有限公司 | Backlight module and corresponding liquid crystal display device |
| CN102691940A (en) * | 2012-06-01 | 2012-09-26 | 深圳市华星光电技术有限公司 | Edge type backlight module |
| WO2013177809A1 (en) * | 2012-06-01 | 2013-12-05 | 深圳市华星光电技术有限公司 | Side type backlight module |
| CN102691940B (en) * | 2012-06-01 | 2014-06-25 | 深圳市华星光电技术有限公司 | Edge type backlight module |
| CN104977752A (en) * | 2014-04-07 | 2015-10-14 | 三星显示有限公司 | Display apparatus |
| CN106471407A (en) * | 2014-07-08 | 2017-03-01 | 飞利浦照明控股有限公司 | For by light from light source couples to optical plate in luminaire |
| US10976602B2 (en) | 2018-11-23 | 2021-04-13 | Xiamen Tianma Micro-Electronics Co., Ltd. | Backlight module and display device |
| CN110119049A (en) * | 2019-03-18 | 2019-08-13 | 东莞市托普莱斯光电技术有限公司 | A kind of direct-light type LED backlight mould group |
| CN113140151A (en) * | 2020-01-16 | 2021-07-20 | 群创光电股份有限公司 | Backlight module and display device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20180514 |