CN201916795U - LED backlight module for increasing light energy utilization ratio of light guide plate - Google Patents
LED backlight module for increasing light energy utilization ratio of light guide plate Download PDFInfo
- Publication number
- CN201916795U CN201916795U CN201020633817XU CN201020633817U CN201916795U CN 201916795 U CN201916795 U CN 201916795U CN 201020633817X U CN201020633817X U CN 201020633817XU CN 201020633817 U CN201020633817 U CN 201020633817U CN 201916795 U CN201916795 U CN 201916795U
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- China
- Prior art keywords
- led
- lgp
- guide plate
- light
- light guide
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides an LED backlight module for increasing the light energy utilization ratio of a light guide plate, which comprises an LED and the light guide plate. An included angle smaller than ninety degrees is formed between the light inlet surface of the light guide plate and the spindle direction of the LED. The LED backlight module has the advantages that since the included angle smaller than ninety degrees is formed between the light inlet surface of the light guide plate and the spindle direction of the LED, a smaller included angle is formed between the upper surface and the lower surface of the light guide plate after light in the spindle direction of the LED enters the light guide plate, the probability of damaging the light by patterns on the light guide plate is increased, and accordingly the light energy utilization ratio of the light guide plate is increased.
Description
Technical field
The utility model relates to a kind of module backlight, relates in particular to the LED-backlit module that increases the LGP efficiency of light energy utilization.
Background technology
In the LED-backlit module, LGP is the optics that spot light or line source is converted into area source.The LGP principle is by side incident light to be transmitted to transparent plate, because the generation of total reflection, light is in two surface concussions up and down of transparent plate.Form pattern in the top and bottom of transparent plate and destroy total reflection, light energy is being destroyed total reflection place from two surperficial outgoing up and down.Reach the adjusting total reflection by regulating the control pattern, and then regulate the even of bright dipping.Because the major axes orientation of the incidence surface of LGP and LED is vertical, the light of all LED major axes orientations enters behind the LGP parallel with two surfaces up and down of LGP, is difficult to by the destruction total reflection of the pattern on the LGP and outgoing.The distribution curve flux of LED is lambert's type luminous intensity distribution.What utilization rate was lower is the light of major axes orientation.
The utility model content
In order to solve the problems of the prior art, the utility model provides a kind of LED-backlit module that increases the LGP efficiency of light energy utilization.
The utility model provides a kind of LED-backlit module that increases the LGP efficiency of light energy utilization, comprises LED and LGP, and described LGP incidence surface and LED major axes orientation are the angle less than 90 degree.
As further improvement of the utility model, described angle is that 85 degree are to 89 degree.
As further improvement of the utility model, this LED-backlit module also comprises glue frame, backboard, reflector plate, first diffusion sheet, second diffusion sheet, prismatic lens, described reflector plate is between described backboard and described LGP, described prismatic lens is positioned at described first diffusion sheet top, and described second diffusion sheet is positioned at described prismatic lens top; Described glue frame is surrounded on the described backboard and described second diffusion sheet outside.
The beneficial effects of the utility model are: because LGP incidence surface and LED major axes orientation are the angle less than 90 degree, so the light of LED major axes orientation is after entering LGP, become a less angle with two surfaces up and down of LGP, increase this bundle light like this by the ruined probability of the pattern on the LGP, thereby strengthened the efficiency of light energy utilization of LGP.
Description of drawings
Fig. 1 is the LED-backlit modular structure schematic diagram of prior art.
Fig. 2 is a structural representation of the present utility model.
The specific embodiment
As shown in Figure 2, the utility model discloses a kind of LED-backlit module that increases the LGP efficiency of light energy utilization, comprise LED4 and LGP 5, described LGP 5 incidence surfaces and LED4 major axes orientation are the angle less than 90 degree.
Described angle is that 85 degree are to 89 degree.
This LED-backlit module also comprises backboard 2, reflector plate 3, first diffusion sheet 8, second diffusion sheet 6, prismatic lens 7, described reflector plate 3 is between described backboard 2 and described LGP 5, described prismatic lens 7 is positioned at described first diffusion sheet 8 tops, and described second diffusion sheet 6 is positioned at described prismatic lens 7 tops; Described glue frame 1 is surrounded on the described backboard 2 and described second diffusion sheet 6 outsides.
Because LGP 5 incidence surfaces and LED4 major axes orientation are the angle less than 90 degree, so the light of LED4 major axes orientation is after entering LGP 5, become a less angle with two surfaces up and down of LGP 5, increase this bundle light like this by the ruined probability of the pattern on the LGP 5, thereby strengthened the efficiency of light energy utilization of LGP 5.
In the light in LGP 5, always have the light that is parallel to LGP two surfaces about in the of 5 and exist.What utilization rate was lower in the prior art is the light of major axes orientation, what utilization rate was lower in the utility model is near major axes orientation but the light of non-main shaft, because the energy of the major axes orientation of lambert's luminous intensity distribution is the highest, thereby improve the utilization rate of the luminous energy that LED4 provided.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (3)
1. LED-backlit module that increases the LGP efficiency of light energy utilization is characterized in that: comprise LED and LGP, described LGP incidence surface and LED major axes orientation are the angle less than 90 degree.
2. LED-backlit module according to claim 1 is characterized in that: described angle is that 85 degree are to 89 degree.
3. LED-backlit module according to claim 1 and 2, it is characterized in that: this LED-backlit module also comprises glue frame, backboard, reflector plate, first diffusion sheet, second diffusion sheet, prismatic lens, described reflector plate is between described backboard and described LGP, described prismatic lens is positioned at described first diffusion sheet top, and described second diffusion sheet is positioned at described prismatic lens top; Described glue frame is surrounded on the described backboard and described second diffusion sheet outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020633817XU CN201916795U (en) | 2010-11-30 | 2010-11-30 | LED backlight module for increasing light energy utilization ratio of light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020633817XU CN201916795U (en) | 2010-11-30 | 2010-11-30 | LED backlight module for increasing light energy utilization ratio of light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201916795U true CN201916795U (en) | 2011-08-03 |
Family
ID=44416590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020633817XU Expired - Fee Related CN201916795U (en) | 2010-11-30 | 2010-11-30 | LED backlight module for increasing light energy utilization ratio of light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201916795U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691936A (en) * | 2012-05-22 | 2012-09-26 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| WO2020087680A1 (en) * | 2018-10-29 | 2020-05-07 | 广州启上设计有限公司 | Light source having a side-light type optical lens and desk lamp |
-
2010
- 2010-11-30 CN CN201020633817XU patent/CN201916795U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691936A (en) * | 2012-05-22 | 2012-09-26 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| WO2020087680A1 (en) * | 2018-10-29 | 2020-05-07 | 广州启上设计有限公司 | Light source having a side-light type optical lens and desk lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN ZHONGDIAN XIONGMAO STRONG ELECTRONICS CO. Free format text: FORMER OWNER: SHENZHEN ZHONGDIAN XIONGMAO ZHONGLIAN SHUYUAN ELECTRONIC CO., LTD. Effective date: 20131213 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN ZHONGDIAN XIONGMAO ZHONGLIAN SHUYUAN ELEC Free format text: FORMER NAME: SHENZHEN DATA-POWER ELECTRONICS CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 518000, Guangming District, Guangming District, Guangdong, Shenzhen Province, Guangming Tong rich industrial zone, 01-02 block, D building, 2-3 floor, 3 building, fourth storey West Patentee after: Shenzhen panda data Power Electronics Co.,Ltd. Address before: 3 Guangming Street, Guangming District, Guangdong, Shenzhen Province, No. 518000 factory building Patentee before: SHENZHEN DATA-POWER ELECTRONICS Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20131213 Address after: 518000, Shenzhen 1, Guangdong province Baoan District Shiyan Street Community Garden community, No. 35, pit end factory building (1-4 stories) Patentee after: SHENZHEN CEC PANDA STRONG ELECTRONICS CO.,LTD. Address before: 518000, Guangming District, Guangming District, Guangdong, Shenzhen Province, Guangming Tong rich industrial zone, 01-02 block, D building, 2-3 floor, 3 building, fourth storey West Patentee before: Shenzhen panda data Power Electronics Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20141130 |
|
| EXPY | Termination of patent right or utility model |