CN201449505U - Backlight source apparatus for LCD - Google Patents
Backlight source apparatus for LCD Download PDFInfo
- Publication number
- CN201449505U CN201449505U CN2009200340648U CN200920034064U CN201449505U CN 201449505 U CN201449505 U CN 201449505U CN 2009200340648 U CN2009200340648 U CN 2009200340648U CN 200920034064 U CN200920034064 U CN 200920034064U CN 201449505 U CN201449505 U CN 201449505U
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- CN
- China
- Prior art keywords
- led
- backlight
- luminescence unit
- led luminescence
- lcd
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- Expired - Fee Related
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Abstract
The utility model discloses a backlight source apparatus for an LCD. The apparatus comprises a circuit board used for loading an LED and fixed on a substrate by a location hole. Equidistant LED luminescent units are arranged on the circuit board of the LED. According to the utility model, the whole backlight source is divided into a plurality of LED independent luminescent areas, thereby the energy conservation and the high picture quality display can be realized by adopting the local dimming technology of the backlight source apparatus of the LED.
Description
Technical field
The utility model relates to a kind of light emitting diode (hereinafter to be referred as LED) backlight arrangement, relates in particular to a kind of LED-backlit source apparatus that is used for LCD (hereinafter to be referred as LCD).
Background technology
LCD in flat panel display market in occupation of leading position, very general in daily use.Liquid crystal itself does not possess the active illuminating ability, but the light that the deflection by liquid crystal molecule comes the diffraction backlight to send represents various images, and therefore, LCD backlight technology directly has influence on the image quality of LCD display image.Traditional LCD adopts cold-cathode fluorescence lamp (Cold Cathode FluorescentLamps usually, be CCFL) as backlight, the coverage of its colour gamut has only (the National Television System Committee of National Television System Committee, be NTSC) the colourcast standard of appointment about 70%, cause LCD color deficiency.
LED relies on its unique advantage, has demonstrated powerful application prospect in the LCD backlight.LED has advantages such as energy-conservation, pollution-free, that color reducibility is good as the LCD backlight module.Adopt the LCD in LED-backlit source can show chromatic colour more, its color rendition scope can reach more than 105% of NTSC, far above CCFL.The LED-backlit technology has two kinds of side entering type and straight-down negatives, and small-medium size LCD is fit to adopt side entering type LED-backlit source, and large-scale LCD adopts direct LED backlight more.
Summary of the invention
The purpose of this utility model is to provide a kind of Backlight For Liquid Crystal Display Panels device that is used for, the direct LED backlight device of impartial spacing arrangement in any direction, thus make whole LED back light source brightness uniformity more.
The LED-backlit source apparatus that the utility model proposes is achieved in that
The equilateral triangle grid assembled arrangement that the LED luminescence unit is arranged according to positive and negative alternate is on circuit board.By such assembled arrangement, make each LED luminescence unit all have same feature, promptly around each LED luminescence unit six LED luminescence units equidistant with it are arranged, these six LED luminescence units just in time are on orthohexagonal six summits.Has better homogeneity with regard to the light that makes backlight send like this.The LED luminescence unit can be the compound LED that three kinds of LED of red, green, blue are packaged together, white light LEDs, or the combination LED of three kinds of LED individual packages of red, green, blue.
The utility model can make the direct LED backlight of equidistant arrangement satisfy the needs of local dimming, thereby realizes energy-conservation and the high image quality demonstration.A kind of partition method of the present utility model is the triangle subregion: is about to three adjacent three LED luminescence units that are on the equilateral triangle summit and is cascaded, and as a light-emitting zone independently, in parallel between each light-emitting zone.And form with the another one equilateral triangle that its another laterally adjacent light-emitting zone is formed by its Rotate 180 degree, be the equilateral triangle composition identical with its vertically adjacent light-emitting zone with it.Another kind of partition method of the present utility model is the parallelogram subregion: the adjacent LED luminescence unit that is on four summits of parallelogram is cascaded, as a light-emitting zone independently, in parallel between each light-emitting zone, the horizontal and vertical light-emitting zone that is adjacent arranges successively.
In sum, the utlity model has following advantage:
(1) the LED luminescence unit adopts equally spaced aligning method, thereby makes the homogeneity of backlight to improve greatly.
(2) backlight can be divided into the light-emitting zone of independent regulation, is convenient to adopt the local dimming technology, realizes energy-conservation and the high image quality demonstration.
Description of drawings
Fig. 1 is the utility model LED-backlit source apparatus structural representation;
Fig. 2 is three kinds of selection modes of the utility model LED luminescence unit;
Fig. 3 is the structural representation of the utility model backlight arrangement embodiment one;
Fig. 4 is the structural representation of the utility model backlight arrangement embodiment two;
Embodiment
Below in conjunction with accompanying drawing the utility model content is elaborated.
Fig. 1 is the utility model LED-backlit source apparatus structural representation, mainly comprises: be used to load LED circuit board 21, LED luminescence unit 22, be used for fixing the pilot hole 24 of circuit board 21.The equilateral triangle grid assembled arrangement that LED luminescence unit 22 is arranged according to positive and negative alternate is on circuit board, except that the LED fluorescent tube that the edge is arranged, around each LED luminescence unit six LED luminescence units equidistant with it are arranged, these six LED luminescence units are on orthohexagonal six summits.By this arrangement, guaranteed that the distance between any two adjacent LEDs luminescence unit all equates, thereby guarantee that the mixing of light on zones of different that each LED luminescence unit sends is consistent, thereby the light that the LED-backlit source is sent has better homogeneity.
Fig. 2 is three kinds of LED selection modes of the utility model LED luminescence unit.LED luminescence unit 22 shown in Figure 1 can have three kinds of selection modes: with the compound LED221 of three kinds of integrated encapsulation of LED of red, green, blue, and white light LEDs 222, or the combination LED223 of three kinds of LED individual packages of red, green, blue.For the combination LED223 of luminescence unit by three kinds of LED individual packages of red, green, blue, the LED fluorescent tube of three individual packages in this luminescence unit is arranged in equilateral triangle, in the entire backlight source, the arrangement position direction of all LED equilateral triangles all is consistent, and promptly the LED fluorescent tube color on each summit of triangle of all LED luminescence unit correspondences is the same.
Fig. 3 is embodiment one structural representation of the utility model backlight arrangement.Be about to three LED luminescence units, 22 series connection on the positive triangle summit 23, carry out parallel connection between all equilateral triangle zones 23, each equilateral triangle 23 is exactly an independently light-emitting zone.Equilateral triangle 23 shown in Figure 3 only is the simplest a kind of signal, can connect according to bigger equilateral triangle, carries out parallel connection then between these equilateral triangles again.
Fig. 4 is embodiment two structural representations of the utility model backlight arrangement.Soon four LED 22 luminescence units on four summits of parallelogram 23 are connected, and carry out parallel connection between all parallelogram 23., each parallelogram 23 is exactly an independently light-emitting zone.Parallelogram shown in Figure 4 only is the simplest a kind of signal, can connect according to bigger parallelogram, carries out parallel connection then between these parallelogram again.
Claims (3)
1. one kind is used for the Backlight For Liquid Crystal Display Panels device, is arranged on the below of LCDs, it is characterized in that, comprising: be used to load led circuit plate (21), LED luminescence unit (22) and the pilot hole (24) that is used to install; Led circuit onboard led luminescence unit (22) is arranged on the led circuit plate (21) by the equilateral triangle positive and negative alternate, and the distance between per two LED luminescence units (22) equates, presents regular hexagon on the whole.
2. the Backlight For Liquid Crystal Display Panels device that is used for according to claim 1 is characterized in that: LED luminescence unit (22) is divided into a plurality of local dimming zone, is equilateral triangle, parallelogram or other geometric figures; Intra-zone is together in series, and is relation in parallel between each zone.
3. the Backlight For Liquid Crystal Display Panels device that is used for according to claim 1 is characterized in that: LED luminescence unit (22) is three kinds of LED of compound LED, white light LEDs or the red, green, blue individual packages of three kinds of integrated encapsulation of LED of red, green, blue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200340648U CN201449505U (en) | 2009-07-31 | 2009-07-31 | Backlight source apparatus for LCD |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200340648U CN201449505U (en) | 2009-07-31 | 2009-07-31 | Backlight source apparatus for LCD |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201449505U true CN201449505U (en) | 2010-05-05 |
Family
ID=42554226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200340648U Expired - Fee Related CN201449505U (en) | 2009-07-31 | 2009-07-31 | Backlight source apparatus for LCD |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201449505U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109116630A (en) * | 2018-09-30 | 2019-01-01 | 厦门天马微电子有限公司 | Backlight module, liquid crystal display die set and electronic equipment |
| CN113035848A (en) * | 2019-12-25 | 2021-06-25 | 深圳市聚飞光电股份有限公司 | LED lamp panel and display device |
| CN116312279A (en) * | 2023-05-22 | 2023-06-23 | 武汉华星光电技术有限公司 | Lamp panel and display panel |
-
2009
- 2009-07-31 CN CN2009200340648U patent/CN201449505U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109116630A (en) * | 2018-09-30 | 2019-01-01 | 厦门天马微电子有限公司 | Backlight module, liquid crystal display die set and electronic equipment |
| CN113035848A (en) * | 2019-12-25 | 2021-06-25 | 深圳市聚飞光电股份有限公司 | LED lamp panel and display device |
| CN116312279A (en) * | 2023-05-22 | 2023-06-23 | 武汉华星光电技术有限公司 | Lamp panel and display panel |
| CN116312279B (en) * | 2023-05-22 | 2023-10-31 | 武汉华星光电技术有限公司 | Lamp panel and display panel |
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Legal Events
| 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 |
Granted publication date: 20100505 Termination date: 20140731 |
|
| EXPY | Termination of patent right or utility model |