CN203431583U - Structure for improving lamp shadow of LED backlight module - Google Patents
Structure for improving lamp shadow of LED backlight module Download PDFInfo
- Publication number
- CN203431583U CN203431583U CN201320534202.5U CN201320534202U CN203431583U CN 203431583 U CN203431583 U CN 203431583U CN 201320534202 U CN201320534202 U CN 201320534202U CN 203431583 U CN203431583 U CN 203431583U
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- backlight module
- lamp shadow
- led backlight
- connector
- reflecting paper
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Abstract
The utility model relates to a structure for improving a lamp shadow of an LED backlight module and belongs to LED liquid crystal display technologies. The structure for improving the lamp shadow of the LED backlight module is provided to remove the lamp shadow and dark shadows and improve light-emitting efficiency of the LED backlight module. The structure for improving the lamp shadow of the LED backlight module comprises a circuit board and connectors and further comprises reflecting paper, and the reflecting paper covers the circuit board and the connectors and is provided with light absorbing holes. The reflecting paper integrally covers the circuit board and the connectors, the lamp shadow and the dark shadows vanish, and local brightness is increased sharply; the light absorbing holes are proportionally arranged in the reflecting paper area where the local brightness is increased sharply, and accordingly the effect of brightness uniformity is achieved. The structure for improving the lamp shadow of the LED backlight module has the advantage of eliminating the lamp shadow and the dark shadows. The structure is suitable for an LED liquid crystal display.
Description
Technical field
The utility model relates to LED LCDs, particularly straight-down negative LED liquid crystal module.
Background technology
Straight-down negative LED liquid crystal module generally adopts circuit board (PCB) to fix LED lamp bar and connector as carrier at present, connector is connected with LED lamp bar, connector is positioned on circuit board, and circuit board is between LED lamp bar, and its position relationship schematic diagram as shown in Figure 2.Circuit board and connector are all the materials of extinction substantially, and when backlight is luminous, circuit board and connector be extinction very easily, causes the phenomenon of circuit board and connector surrounding lamp shadow and shadow, and optics taste and brightness decay are brought to very large impact.How eliminating lamp shadow and shadow phenomenon, improve the luminous efficiency of LED-backlit module, is in prior art, to have problem to be solved.
Utility model content
The purpose of this utility model is lamp shadow and shadow phenomenon when solving in prior art that direct-light type LED backlight module is luminous, the low problem of luminous efficiency of LED-backlit module.
For achieving the above object, the utility model provides a kind of structure of improving direct-light type LED backlight module lamp shadow, comprises LED lamp bar, circuit board and connector, also comprises reflecting paper, described reflecting paper covering board and connector.
Further, described reflecting paper is provided with extinction hole.
Particularly, size and the connector in described extinction hole match.
Particularly, described extinction span connector arranges, and the connector number at interval is more than or equal to 1.
The beneficial effects of the utility model are: effectively improve the bad optics taste such as lamp shadow, shadow of backlight module, reduced the use of reflecting material, and can also increase the light source reflection of backlight module, increase brightness, improve luminous efficiency, there is dismounting easy, safe and reliable feature.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that the utility model improves the structure of direct-light type LED backlight module lamp shadow.
Fig. 2 is the direct-light type LED backlight modular structure schematic diagram of prior art.
Fig. 3 is the direct-light type LED backlight modular structure schematic diagram after the increase reflecting paper of embodiment.
Fig. 4 be embodiment the direct-light type LED backlight module schematic diagram behind extinction hole is set in reflecting paper.
Wherein, 101 is LED lamp bar, and 102 is circuit board, and 103 is connector, and 104 is LED lamp, and 105 is reflecting paper, and 401 is extinction hole.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
The structural representation that improves direct-light type LED backlight module lamp shadow of the present utility model as shown in Figure 1, reflecting paper 105 covering boards 102 and connector 103.The whole extinction part that covers of reflecting paper 105, reaches and cuts off extinction source, improves lamp shadow, thereby increases the object of brightness.
As shown in Figure 4, because the utility model adopts the whole catoptric arrangement covering, regional area brightness meeting increases suddenly, can cause the phenomenon of brightness disproportionation, therefore also need to adopt the catoptric arrangement that is interrupted extinction, in brightness, suddenly increase proportional increase extinction hole, region, thereby reach the effect of brightness uniformity, extinction hole 401 is set in reflecting paper 105, extinction hole 401 interval connectors 103 arrange, connector 103 numbers at interval are greater than or equal to 1, the size in extinction hole 401 and connector 103 match, according to the size of connector 103 and shape, determine size and the shape in extinction hole 401.
Comparison diagram 2, Fig. 3 and Fig. 4, in Fig. 2, circuit board 102 and connector 103 expose, and easily extinction, causes lamp shadow and shadow.In Fig. 3, by reflecting paper 105, circuit board 102 and connector 103 integral body are covered, lamp shadow and shadow disappear, but cause local luminance suddenly to increase, Fig. 4 for after arranging extinction hole 401 in reflecting paper 105, the catoptric arrangement that adopt to be interrupted extinction, suddenly increases and proportional on region extinction hole 401 is set in reflecting paper 105 local luminance, thereby reach the effect of brightness uniformity.
Claims (4)
1. improve the structure of direct-light type LED backlight module lamp shadow, comprise LED lamp bar, circuit board and connector, it is characterized in that, also comprise reflecting paper, described reflecting paper covering board and connector.
2. the structure of improving direct-light type LED backlight module lamp shadow as claimed in claim 1, is characterized in that, described reflecting paper is provided with extinction hole.
3. the structure of improving direct-light type LED backlight module lamp shadow as claimed in claim 2, is characterized in that, size and the connector in described extinction hole match.
4. improve as claimed in claim 2 or claim 3 the structure of direct-light type LED backlight module lamp shadow, it is characterized in that, described extinction span connector arranges, and the connector number at interval is more than or equal to 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320534202.5U CN203431583U (en) | 2013-08-29 | 2013-08-29 | Structure for improving lamp shadow of LED backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320534202.5U CN203431583U (en) | 2013-08-29 | 2013-08-29 | Structure for improving lamp shadow of LED backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203431583U true CN203431583U (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320534202.5U Expired - Lifetime CN203431583U (en) | 2013-08-29 | 2013-08-29 | Structure for improving lamp shadow of LED backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203431583U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105892149A (en) * | 2016-06-07 | 2016-08-24 | 京东方科技集团股份有限公司 | Light-emitting assembly, backlight module and display device |
| CN106226950A (en) * | 2016-07-29 | 2016-12-14 | 广东长虹电子有限公司 | Solve the reflecting paper of television image bright circle phenomenon |
| CN108802887A (en) * | 2017-04-27 | 2018-11-13 | 扬升照明股份有限公司 | Backlight module and its surface light source component |
| CN113156702A (en) * | 2021-03-18 | 2021-07-23 | 江西兆驰光元科技股份有限公司 | LED backlight module and display device |
| CN113568221A (en) * | 2020-04-29 | 2021-10-29 | 乐金显示有限公司 | Backlight unit and display device |
-
2013
- 2013-08-29 CN CN201320534202.5U patent/CN203431583U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105892149A (en) * | 2016-06-07 | 2016-08-24 | 京东方科技集团股份有限公司 | Light-emitting assembly, backlight module and display device |
| WO2017211224A1 (en) * | 2016-06-07 | 2017-12-14 | 京东方科技集团股份有限公司 | Light-emitting assembly for backlight module, backlight module and display device |
| US10330978B2 (en) | 2016-06-07 | 2019-06-25 | Boe Technology Group Co., Ltd. | Light emission assembly of backlight module, backlight module and display device |
| CN106226950A (en) * | 2016-07-29 | 2016-12-14 | 广东长虹电子有限公司 | Solve the reflecting paper of television image bright circle phenomenon |
| CN108802887A (en) * | 2017-04-27 | 2018-11-13 | 扬升照明股份有限公司 | Backlight module and its surface light source component |
| CN113568221A (en) * | 2020-04-29 | 2021-10-29 | 乐金显示有限公司 | Backlight unit and display device |
| CN113156702A (en) * | 2021-03-18 | 2021-07-23 | 江西兆驰光元科技股份有限公司 | LED 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 |
Effective date of registration: 20190610 Address after: 621000, No. 35 Mian Xing Dong Road, hi tech Zone, Sichuan, Mianyang Patentee after: SICHUAN CHANGHONG ELECTRIC Co.,Ltd. Address before: No. 39 Sanjiang Bridge Road, 621000 Mianyang Economic and Technological Development Zone, Sichuan Province Patentee before: SICHUAN CHANGHONG PHOTOELECTRIC Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140212 |
|
| CX01 | Expiry of patent term |