CN202972788U - Novel energy-saving 7-inch LED (Light Emitting Diode) backlight module - Google Patents
Novel energy-saving 7-inch LED (Light Emitting Diode) backlight module Download PDFInfo
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- CN202972788U CN202972788U CN2012206204047U CN201220620404U CN202972788U CN 202972788 U CN202972788 U CN 202972788U CN 2012206204047 U CN2012206204047 U CN 2012206204047U CN 201220620404 U CN201220620404 U CN 201220620404U CN 202972788 U CN202972788 U CN 202972788U
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- 238000009792 diffusion process Methods 0.000 claims description 14
- 230000004888 barrier function Effects 0.000 claims description 12
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- 238000000576 coating method Methods 0.000 claims description 6
- 239000000047 product Substances 0.000 description 17
- 230000000694 effects Effects 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000006059 cover glass Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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Abstract
The utility model is applicable to the technical field of backlight display and provides a novel energy-saving 7-inch LED (Light Emitting Diode) backlight module. An LED backlight comprises at least four LEDs which are arranged on short sides of a frame. The length of diagonal lines of the frame is 7 inches. The backlight additionally comprises a light guide plate which is arranged in the frame. A plurality of light guide dots are arranged on the light guide plate. The light guide dots close to the LEDs on the light guide plate are relatively smaller than the light guide dots far away from the LEDs and are distributed more sparsely. Among the light guide dots in an area between two adjacent LEDs on the light guide plate, the light guide dots close to the middle point of the two adjacent LEDs are relatively larger than the light guide dots close to the LEDs and are distributed more densely. Therefore, the novel energy-saving 7-inch LED backlight module has the advantages that the power consumption of the product can be reduced, the energy is saved, the endurance of the cell of the product is promoted, the light emitted by the backlight is more uniform and the brightness uniformity is better.
Description
Technical field
The utility model relates to Display Technique backlight field, relates in particular to 7 inches LED(Light Emitting Diode of a kind of novel energy-conserving, light emitting diode) backlight source module.
Background technology
LED-backlit refers to the back light source light source as LCDs with LED, compare with traditional cold-cathode tube backlight, the characteristics such as LED has low-power consumption, lower calorific value, brightness is high, the life-span is long, in existing display screen, LED-backlit replaces existing cold-cathode tube backlight gradually.
Existing 7 inches LED-backlit sources are limited because of technology and material, usually more than using 12 LEDs, sometimes twenties LEDs have even been used, LED quantity is more has directly caused the supply current increase, the power consumption of display screen complete machine rises, for adopting battery powered product, cause the flying power of battery to reduce; And because LED in backlight is more, cost also directly rises, and has a greatly reduced quality for the competitiveness of product.
In summary, existing 7 inches LED-backlit source modules and display screen obviously exist inconvenience and defective, in actual use so be necessary to be improved.
The utility model content
For above-mentioned defective, the purpose of this utility model is to provide 7 inches of a kind of novel energy-conservings LED-backlit source module, and it has reduced the power consumption of product, saved the energy, promoted the flying power of product battery, and the light that backlight distributes is more even, has brightness uniformity preferably.
To achieve these goals, the utility model provides 7 inches of a kind of novel energy-conservings LED-backlit source module, at least 4 LEDs that described LED-backlit source comprises rectangular frame and is arranged at described framework minor face, described framework catercorner length is 7 inches, described LED-backlit source also comprises the LGP that is arranged in described framework, described LGP is provided with a plurality of leaded lights sites, on described LGP near the leaded light site of described LED with respect to less away from the size of the leaded light site of described LED and distribute comparatively sparse; On described LGP between two adjacent LED in the leaded light site in zone, near the leaded light site of described two adjacent LED mid points with respect to large near the size of the leaded light site of described LED and distribute comparatively intensive.
According to LED-backlit of the present utility model source module, the incidence surface of LGP also is provided with laciniation.
According to LED-backlit of the present utility model source module, a side of described LGP is provided with reflectance coating, and the LGP opposite side is provided with PCB lamp bar, and described LED is arranged on described PCB lamp bar.
According to LED-backlit of the present utility model source module, the side that described LGP is provided with described PCB lamp bar is provided with at least one diffusion barrier.
According to LED-backlit of the present utility model source module, the opposite side that described diffusion barrier is opposite with described LGP is provided with at least one bright enhancement film.
The utility model also provides a kind of 7 inches display screens, the LCD and the LED-backlit source that comprise framework and be positioned at described framework, described LED-backlit source comprises at least 4 LEDs that are arranged at described framework minor face, described framework catercorner length is 7 inches, described LED-backlit source also comprises the LGP that is arranged in described framework, described LGP is provided with a plurality of leaded lights sites, on described LGP near the leaded light site of described LED with respect to less away from the size of the leaded light site of described LED and distribute comparatively sparse; On described LGP between two adjacent LED in the leaded light site in zone, near the leaded light site of described two adjacent LED mid points with respect to large near the size of the leaded light site of described LED and distribute comparatively intensive.
According to display screen of the present utility model, the incidence surface of LGP also is provided with laciniation.
According to display screen of the present utility model, a side of described LGP is provided with reflectance coating, and the LGP opposite side is provided with PCB lamp bar, and described LED is arranged on described PCB lamp bar.
According to display screen of the present utility model, the side that described LGP is provided with described PCB lamp bar is provided with at least one diffusion barrier.
According to display screen of the present utility model, the opposite side that described diffusion barrier is opposite with described LGP is provided with at least one bright enhancement film.
The utility model is by becoming little and thin in the zone near LED with the leaded light net-pont design, zone corresponding between two LEDs becomes large and close with the leaded light net-pont design, little and thin due to the leaded light site near the place of LED light source like this, reflection of light and refraction are just little, and this regional brightness just descends naturally; Large and close away from the leaded light site between light source and light source, reflection of light and refraction are just large, this regional brightness just can deliberately draw high, finally obtain a luminous zone very uniformly by the transition of reasonably layouting, and brightness uniformity is very good, and can makes and only adopt 4 LEDs namely to can be 7 inches display screens to provide backlight, with respect to prior art, reduce the power consumption of product, saved the energy, promoted the flying power of product battery.Whereby, the utility model can reduce the power consumption of product, saves the energy, the flying power of improving product battery, and the light that backlight distributes is more even, has brightness uniformity preferably.
Description of drawings
Fig. 1 is the three-dimensional structure diagram of a kind of 7 inches display screens of the utility model;
Fig. 2 is that the blast of a kind of 7 inches display screens of the utility model is attempted;
Fig. 3 is the leaded light network point distribution schematic diagram of LGP in a kind of 7 inches display screens of the utility model.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
As Fig. 1～shown in Figure 3, a kind of 7 inches display screens 100 of the utility model, be used for DPF, P-DVD(Progressive-Digital Versatile Disc, the progressive scanning digital multifunctional optical disk), PMP(Portable Media Player, portable electronic device) and GPS(Global Positioning System, global positioning system) navigator etc.The LCD(Liquid Crystal Display that display screen 100 comprises framework 10 and is positioned at framework, liquid crystal display) 20 and the LED-backlit source, the LED-backlit source comprises at least 4 LEDs 40 that are arranged at framework 10 minor faces, and framework 10 catercorner lengths are 7 inches.As shown in Figure 2, the LED-backlit source also comprises LGP 31, reflectance coating 32, PCB lamp bar 33, diffusion barrier 34 and the bright enhancement film 35 that is arranged in framework 10, and LGP 31 is provided with a plurality of leaded lights site 311.
As shown in Figure 3, on LGP 31 near the leaded light site 311 of LED 40 with respect to less away from the size of the leaded light site 311 of LED 40 and distribute comparatively sparse; On LGP 31 between two adjacent LED in the leaded light site 311 in zone, near the leaded light site 311 of two adjacent LED 40 mid points with respect to large near the size of the leaded light site 311 of LED 40 and distribute comparatively intensive.
The design of LGP 31 utilizes leaded light site principle, be designed to leaded light site 311 little and thin near the zone of LED 40, corresponding zone is designed to leaded light site 311 large and close between two LEDs 40, little and thin due to the leaded light site near the place of LED 40 like this, reflection of light and refraction are just little, and this regional brightness just descends naturally; Large and close away from the site between light source and light source, reflection of light and refraction are just large, this regional brightness just can deliberately draw high, finally obtain a luminous zone very uniformly by the transition of reasonably layouting, and brightness uniformity is very good, and can makes and only adopt 4 LEDs namely to can be 7 inches display screens to provide backlight, with respect to prior art, reduce the power consumption of product, saved the energy, promoted the flying power of product battery.Whereby, the utility model can reduce the power consumption of product, saves the energy, the flying power of improving product battery, and the light that backlight distributes is more even, has brightness uniformity preferably.
Preferably, the incidence surface of LGP 31 can also be provided with jagged fine structure, is used for just being broken up by the sawtooth micro-structural when LED 40 distributes light incident LGP 31, is used for coordinating leaded light site 311, LED lamp eye can be eliminated, further improve the uniformity at light source place.
As shown in Figure 2, a side of LGP 31 is provided with reflectance coating 32, and LGP 31 opposite sides are provided with PCB lamp bar 33, and LED 40 is arranged on PCB lamp bar 33, and PCB lamp bar 33 is connected to power supply by wire 331; The side that LGP 31 is provided with PCB lamp bar 33 is provided with at least one diffusion barrier 34; The opposite side that diffusion barrier 34 is opposite with LGP 31 is provided with at least one bright enhancement film 35.In an embodiment of the present utility model, diffusion barrier 34 can be selected the higher material of mist degree according to actual effect, is placed on LGP 31 1 sides; Adopt again 2 bright enhancement films 35 to be positioned over diffusion mould 34 opposite side opposite with LGP 31, also can only adopt 1 bright enhancement film 35.In other embodiments, also can adopt two diffusion moulds 34 to obtain different brightness demands.Under different brightness demands, blooming piece can be arranged in pairs or groups on demand, can also can hollow out processing in the place of corresponding LED 40 on framework 10, as hollows out and be arc, with the further lamp eye effect of improving.LED 40 can select high brightness, and rated current can be selected 20mA or 30mA specification, and high-power LED even is obtaining different brightness demands.
As shown in Figure 2, the framework 10 of display screen 100 comprises glue frame 11, upper chase 12 and lower chase 13, when assembling, LCD 20 and LED-backlit source are installed on glue frame 11, then be fastened upper chase 12 and lower chase 13 gets final product.Glue frame 11 can play the support of forming a connecting link and the effect of cover glass in the LED-backlit source, avoid LED-backlit source and glass to damage.
The utility model reduces the design of LED and can give the application terminal (as digital frame, P-DVD, PMP etc.) bring the effect of more energy saving, and reduced cost, make the more creative and characteristics of end product, thereby end product is promoted be worth the self-value that promotes backlight module, and satisfy trend and the demand of modern product energy-saving, emission-reducing, environment friendly.
The utility model also provides a kind of LED-backlit source, at least 4 LEDs that the LED-backlit source comprises rectangular frame and is arranged at the framework minor face, the framework catercorner length is 7 inches, the LED-backlit source also comprises the LGP that is arranged in framework, LGP is provided with a plurality of leaded lights sites, on LGP near the leaded light site of LED with respect to less away from the size of the leaded light site of LED and distribute comparatively sparse; On LGP between two adjacent LED in the leaded light site in zone, near the leaded light site of two adjacent LED mid points with respect to large near the size of the leaded light site of LED and distribute comparatively intensive.
Wherein, the incidence surface of LGP also is provided with laciniation; One side of described LGP is provided with reflectance coating, and the LGP opposite side is provided with PCB lamp bar, and described LED is arranged on described PCB lamp bar; The side that described LGP is provided with described PCB lamp bar is provided with at least one diffusion barrier; The opposite side that described diffusion barrier is opposite with described LGP is provided with at least one bright enhancement film.The concrete structure in LED-backlit of the present utility model source is described in detail in preamble and accompanying drawing 1～3, therefore do not repeat them here.
In sum, the utility model is by becoming little and thin in the zone near LED with the leaded light net-pont design, zone corresponding between two LEDs becomes large and close with the leaded light net-pont design, little and thin due to the leaded light site near the place of LED light source like this, reflection of light and refraction are just little, and this regional brightness just descends naturally; Large and close away from the leaded light site between light source and light source, reflection of light and refraction are just large, this regional brightness just can deliberately draw high, finally obtain a luminous zone very uniformly by the transition of reasonably layouting, and brightness uniformity is very good, and can makes and only adopt 4 LEDs namely to can be 7 inches display screens to provide back light, with respect to prior art, reduce the power consumption of product, saved the energy, promoted the flying power of product battery.Whereby, the utility model can reduce the power consumption of product, saves the energy, the flying power of improving product battery, and the light that backlight distributes is more even, has brightness uniformity preferably.
Certainly; the utility model also can have other various embodiments; in the situation that do not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (5)
1. 7 inches of novel energy-conservings LED-backlit source module, it is characterized in that, at least 4 LEDs that described LED-backlit source comprises rectangular frame and is arranged at described framework minor face, described framework catercorner length is 7 inches, described LED-backlit source also comprises the LGP that is arranged in described framework, described LGP is provided with a plurality of leaded lights sites, on described LGP near the leaded light site of described LED with respect to less away from the size of the leaded light site of described LED and distribute comparatively sparse; On described LGP between two adjacent LED in the leaded light site in zone, near the leaded light site of described two adjacent LED mid points with respect to large near the size of the leaded light site of described LED and distribute comparatively intensive.
2. 7 inches of novel energy-conservings according to claim 1 LED-backlit source module, is characterized in that, the incidence surface of LGP also is provided with laciniation.
3. 7 inches of novel energy-conservings according to claim 1 and 2 LED-backlit source module, is characterized in that, a side of described LGP is provided with reflectance coating, and the LGP opposite side is provided with PCB lamp bar, and described LED is arranged on described PCB lamp bar.
4. 7 inches of novel energy-conservings according to claim 3 LED-backlit source module, is characterized in that, the side that described LGP is provided with described PCB lamp bar is provided with at least one diffusion barrier.
5. 7 inches of novel energy-conservings according to claim 4 LED-backlit source module, is characterized in that, the opposite side that described diffusion barrier is opposite with described LGP is provided with at least one bright enhancement film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206204047U CN202972788U (en) | 2012-11-21 | 2012-11-21 | Novel energy-saving 7-inch LED (Light Emitting Diode) backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206204047U CN202972788U (en) | 2012-11-21 | 2012-11-21 | Novel energy-saving 7-inch LED (Light Emitting Diode) backlight module |
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| Publication Number | Publication Date |
|---|---|
| CN202972788U true CN202972788U (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206204047U Expired - Fee Related CN202972788U (en) | 2012-11-21 | 2012-11-21 | Novel energy-saving 7-inch LED (Light Emitting Diode) backlight module |
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| Country | Link |
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| CN (1) | CN202972788U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738981A (en) * | 2018-12-28 | 2019-05-10 | 深圳市高美福电子有限公司 | The site arrangement and backlight module of lamp shadow phenomenon can be eliminated |
| CN110187430A (en) * | 2019-05-29 | 2019-08-30 | 重庆翰博光电有限公司 | A kind of light guide plate mesh point arrangement and its design method |
| CN113721388A (en) * | 2021-08-30 | 2021-11-30 | 京东方科技集团股份有限公司 | Backlight module and display module |
-
2012
- 2012-11-21 CN CN2012206204047U patent/CN202972788U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738981A (en) * | 2018-12-28 | 2019-05-10 | 深圳市高美福电子有限公司 | The site arrangement and backlight module of lamp shadow phenomenon can be eliminated |
| CN110187430A (en) * | 2019-05-29 | 2019-08-30 | 重庆翰博光电有限公司 | A kind of light guide plate mesh point arrangement and its design method |
| CN110187430B (en) * | 2019-05-29 | 2024-02-06 | 重庆翰博光电有限公司 | Light guide plate mesh point arrangement structure and design method thereof |
| CN113721388A (en) * | 2021-08-30 | 2021-11-30 | 京东方科技集团股份有限公司 | Backlight module and display module |
| CN113721388B (en) * | 2021-08-30 | 2023-12-01 | 京东方科技集团股份有限公司 | Backlight module and display module |
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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: 20130605 Termination date: 20151121 |