CN205003416U - Liquid crystal display back of body light source device - Google Patents
Liquid crystal display back of body light source device Download PDFInfo
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- CN205003416U CN205003416U CN201520707884.4U CN201520707884U CN205003416U CN 205003416 U CN205003416 U CN 205003416U CN 201520707884 U CN201520707884 U CN 201520707884U CN 205003416 U CN205003416 U CN 205003416U
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- light source
- lens
- liquid crystal
- led light
- crystal display
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Abstract
The utility model relates to a liquid crystal display technology field, specifically speaking relates to a liquid crystal display back of body light source device. Including base plate, lens and the light pipe that has the LED light source, LED light source array arranges on the base plate, lens and LED light source one -to -one and array arrangement, every LED light source are located the focus position of lens corresponding with it, all install the light pipe between every lens and the base plate. The utility model discloses can effectively promote the utilization ratio of light source, reduce the decay of light source luminance value, make LCD luminance high -efficient promotion the again. Under equal luminance value requires, the utility model discloses can use low wattage, LED light source that power consumption is little to come reduce cost, using electricity wisely, be applicable to very much car new line display (HUD).
Description
Technical field
The utility model relates to technical field of liquid crystal display, specifically, relates to a kind of liquid crystal screen back light source device.
Background technology
Along with the development of lcd technology, the application of liquid crystal display particularly colour liquid crystal display device is also constantly being widened, and illumination effect will directly have influence on the visual effect of LCD MODULE (LCM).Liquid crystal display, also known as LCD (LiquidCrystalDisplay) display, is for display with colorful film liquid crystal (TFT-LCD).Liquid crystal display is passive type display device, and display screen itself is not luminous, but illuminated by the backlight below it, the performance of backlight determines display and shows brightness value outward.Therefore, improving back light source brightness when not increasing power consumption and then increasing LCD brightness is also one of Main Trends of The Development.
In prior art, backlight is the uniform illumination device of a plane, as shown in Figure 1, primarily of compositions such as light guide plate A6, diffusion sheet A3, brightening piece A2, LED light source A4, reflector plate A5.Backlight is brighter, and the brightness of whole liquid crystal display A1 also can improve thereupon.The quality of backlight performance is except can directly affect except LCD video picture quality, and the cost of backlight accounts for the 30-50% of LCD module, and the electric power consumed more accounts for 75% of module, is considerable assembly in LCD module.
In existing backlight arrangement, LED is pointolite, and pointolite is converted to area source to be needed to use light guide plate A6.Light guide plate A6 is generally made up of the acrylic plastics of high transmission rate, and effect is the scattering direction guiding light, guarantees the homogeneity of LCD brightness.Place diffusion sheet A3 above light guide plate, utilize its scattering process to provide uniform area source.After the injection of light self-diffusion sheet, the directive property of light is poor, and brightening piece A2 must be utilized to revise the direction of light, reaches cohesion light, improves the object of frontal luminance.Finally, the light that backlight sends is irradiated on liquid crystal display A1, thus produces image.
Current employing LED does the liquid crystal display of light source, and brightness value can at 300-1000 nit (Nit).But, be applied on such as automobile head-up display, this brightness value effectively can not adapt to the use of automobile at various environment, if by increasing LED number or increasing LED power, not only power consumption but also cost increase.
Utility model content
The purpose of this utility model is, provides the liquid crystal screen back light source device of a kind of high brightness, power saving, to solve above-mentioned technical matters.
For solving the problem, the technical scheme that the utility model adopts is:
A kind of liquid crystal screen back light source device, is characterized in that: comprise with the substrate of LED light source, lens and light pipe; Described LED light source array arrangement is on substrate; Described lens and LED light source one_to_one corresponding and array arrangement, each LED light source is positioned at the focal position of lens corresponding with it; Between each lens and substrate, light pipe is installed.
Say further, the minute surface of described lens is the globoidal structure raised up.
Again furtherly, the taper tetragonal body that described light pipe is all round closure, upper and lower opening and upper shed are greater than under shed, its inside surface is coated with total reflection film; The upper shed of described lens and light pipe connects, and described LED light source is arranged in the under shed of light pipe.
Again furtherly, the top of the lens of array arrangement arranges LCDs.
Beneficial effect: compared with prior art, the utility model effectively can promote the utilization factor of light source, reduces the decay of light-source brightness value, makes LCD brightness efficiently promote again.Under equivalent brightness value requires, the utility model can use that the little LED light source of low wattage, power consumption reduces costs, using electricity wisely, is highly suitable for automobile head-up display (HUD).
Accompanying drawing explanation
Fig. 1 is the structural representation of traditional backlight source apparatus;
Fig. 2 is the structural representation of backlight arrangement described in the utility model;
Fig. 3 is the perspective view of backlight arrangement described in the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
With reference to Fig. 1, liquid crystal screen back light source device described in the utility model, comprises substrate B5, the lens B2 with LED light source B4 and light pipe B3.Described LED light source B4 array arrangement is on substrate B5.The minute surface of described lens B2 is the globoidal structure raised up.Described lens B2 and LED light source B4 one_to_one corresponding and array arrangement, the top of the lens B2 of described array arrangement arranges LCDs B1.Between each lens B2 and substrate B5, light pipe B3 is installed.The taper tetragonal body that described light pipe B3 is all round closure, upper and lower opening and upper shed are greater than under shed, its inside surface is coated with total reflection film.The upper shed of described lens B2 and light pipe B3 connects.Described LED light source B4 is arranged in the under shed of light pipe B3, and is positioned at the focal position of lens B2 corresponding with it.
The light that scattering angle is 120 degree is sent by LED light source B4, the high angle scattered light that LED light source B4 sends is collected into 70-80 degree light by light pipe B3, and be reflected on lens B2, light becomes parallel rays after lens B2, and the area source forming uniform, high briliancy is irradiated on LCDs A1, LCDs A1 is made to obtain backlight very efficiently.
When backlight arrangement described in the utility model is applied in small-size liquid crystal displays, the backlight of super bright angle value can be reached.Such as, be applied in 1.8 cun of liquid crystal display, use the LED light source of 0.5 watt of (W) power consumption, LCD brightness value can up to 10000 nits (Nit), also can clear display image under daylight.Therefore, this backlight arrangement is highly suitable for automobile head-up display (HUD).
Claims (4)
1. a liquid crystal screen back light source device, is characterized in that: comprise with the substrate (B5) of LED light source (B4), lens (B2) and light pipe (B3); Described LED light source (B4) array arrangement is on substrate (B5); Described lens (B2) and LED light source (B4) one_to_one corresponding and array arrangement, each LED light source (B4) is positioned at the focal position of lens (B2) corresponding with it; Light pipe (B3) is installed between each lens (B2) and substrate (B5).
2. liquid crystal screen back light source device according to claim 1, is characterized in that: the minute surface of described lens (B2) is the globoidal structure raised up.
3. liquid crystal screen back light source device according to claim 1 and 2, is characterized in that: the taper tetragonal body that described light pipe (B3) is all round closure, upper and lower opening and upper shed are greater than under shed, and its inside surface is coated with total reflection film; Described lens (B2) connect with the upper shed of light pipe (B3), and described LED light source (B4) is arranged in the under shed of light pipe (B3).
4. liquid crystal screen back light source device according to claim 3, is characterized in that: the top of the lens (B2) of described array arrangement arranges LCDs (B1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520707884.4U CN205003416U (en) | 2015-09-14 | 2015-09-14 | Liquid crystal display back of body light source device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520707884.4U CN205003416U (en) | 2015-09-14 | 2015-09-14 | Liquid crystal display back of body light source device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205003416U true CN205003416U (en) | 2016-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520707884.4U Expired - Fee Related CN205003416U (en) | 2015-09-14 | 2015-09-14 | Liquid crystal display back of body light source device |
Country Status (1)
| Country | Link |
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| CN (1) | CN205003416U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106970508A (en) * | 2017-05-25 | 2017-07-21 | 苏州灯龙光电科技有限公司 | A kind of parallel exposing machine light source module |
| CN107748465A (en) * | 2017-11-15 | 2018-03-02 | 吴华强 | A kind of 3D printer and LCD backlight source device based on liquid crystal imaging principle |
| WO2018130214A1 (en) * | 2017-01-13 | 2018-07-19 | 矽创电子股份有限公司 | Backlight device |
| CN109270795A (en) * | 2017-07-17 | 2019-01-25 | 志圣工业股份有限公司 | Total internal reflection mirror and sleeve are conjointly employed in exposure machine light source module |
| WO2020063155A1 (en) * | 2018-09-28 | 2020-04-02 | 深圳光峰科技股份有限公司 | Led display screen |
| WO2021078154A1 (en) * | 2019-10-21 | 2021-04-29 | 深圳光峰科技股份有限公司 | Backlight module and display device |
-
2015
- 2015-09-14 CN CN201520707884.4U patent/CN205003416U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018130214A1 (en) * | 2017-01-13 | 2018-07-19 | 矽创电子股份有限公司 | Backlight device |
| CN108302381A (en) * | 2017-01-13 | 2018-07-20 | 矽创电子股份有限公司 | Back lighting device |
| US10754155B2 (en) | 2017-01-13 | 2020-08-25 | Sitronix Technology Corp. | Backlight device |
| CN106970508A (en) * | 2017-05-25 | 2017-07-21 | 苏州灯龙光电科技有限公司 | A kind of parallel exposing machine light source module |
| CN109270795A (en) * | 2017-07-17 | 2019-01-25 | 志圣工业股份有限公司 | Total internal reflection mirror and sleeve are conjointly employed in exposure machine light source module |
| CN107748465A (en) * | 2017-11-15 | 2018-03-02 | 吴华强 | A kind of 3D printer and LCD backlight source device based on liquid crystal imaging principle |
| WO2020063155A1 (en) * | 2018-09-28 | 2020-04-02 | 深圳光峰科技股份有限公司 | Led display screen |
| CN110969958A (en) * | 2018-09-28 | 2020-04-07 | 深圳光峰科技股份有限公司 | LED display screen |
| CN110969958B (en) * | 2018-09-28 | 2022-05-13 | 深圳光峰科技股份有限公司 | LED display screen |
| WO2021078154A1 (en) * | 2019-10-21 | 2021-04-29 | 深圳光峰科技股份有限公司 | Backlight module and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170815 Address after: 518172, No. 160 West Ping long road, Longgang District, Shenzhen, Guangdong Patentee after: Huade Electronics (Shenzhen) Co., Ltd. Address before: Haidian District Qinghe small battalion Ning Li Nan District 9 Building 10 unit 202 room Patentee before: Fang Weixing |
|
| 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: 20160127 Termination date: 20200914 |