CN201589140U - Direct back light set - Google Patents
Direct back light set Download PDFInfo
- Publication number
- CN201589140U CN201589140U CN2009202616313U CN200920261631U CN201589140U CN 201589140 U CN201589140 U CN 201589140U CN 2009202616313 U CN2009202616313 U CN 2009202616313U CN 200920261631 U CN200920261631 U CN 200920261631U CN 201589140 U CN201589140 U CN 201589140U
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- led lamp
- frame
- light
- direct
- fixed
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- 239000011159 matrix material Substances 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010297 mechanical methods and process Methods 0.000 description 2
- 230000005226 mechanical processes and functions Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Abstract
The utility model provides a direct back light set, which comprises a front frame, a panel, a middle frame bracket, an optical lens set, a lamp bracket, a reflector plate and a rear frame. The optical lens set, the lamp bracket and the reflector plate are sequentially superimposed and fixed inside the middle frame bracket; at least one groove corresponding to the distribution positions of cold cathode fluorescent lamps (CCFLs) is arranged on the lamp bracket, and the CCFLs are arranged inside the groove; at least one light emitting diode (LED) lamp strip is fixed on the rear frame, and the LED lamps on the LED lamp strip are equally-spaced arranged; and through holes corresponding to the positions of the LED lamps are arranged on the reflector plate, thereby resulting in crosswise distribution of the LED lamps fixed on the rear frame and the CCFLs arranged inside the groove. The direct back light set provided by the utility model can realize local dimming function with low cost, thereby resulting in thinner thickness of the complete set, lower power consumption and higher contrast.
Description
Technical field
The utility model relates to electronic applications, relates in particular to a kind of direct-light-type backlight group.
Background technology
Show the field on the plane, traditional cathode-ray tube (Cathode Ray Tude, CRT) because of high radiation, high power consumption, large volume, low resolution, volume heaviness, progressively (Liquid Crystal Display LCD) replaces by more and more advanced liquid crystal display.
The structure of the backlight of LCD display mainly contains side-light type and straight-down negative at present, except with cold cathode fluorescent tube (Cold-Cathode Florescent Lamps, CCFL) be outside the master, adopt light emitting diode (Light-Emitting Diode, LED) be the new lover that backlight also becomes market gradually, but, in order to obtain higher brightness and all once preferably (especially aspect the large scale liquid crystal TV), direct-light-type backlight of the prior art mainly adopts full LED lamp or full CCFL lamp, adopt the backlight of full LED lamp because the LED lamp quantity that adopts is too many, cost an arm and a leg, and adopt the not environmental protection of backlight of full CCFL lamp, and thickness is thicker, thereby increases the thickness of LCD display, makes LCD display not attractive in appearance.
The utility model content
In view of above-mentioned existing in prior technology problem, the utility model embodiment provides a kind of direct-light-type backlight group, comprise preceding frame, panel Panel, middle frame bracket, optics matrix group, tube stand, reflector plate and after-frame, described optics matrix group, described tube stand and described reflector plate superpose in regular turn and are fixed in the described middle frame bracket, at least one and the corresponding groove of cold-cathode tube CCFL lamp distributing position are arranged on the described tube stand, described CCFL lamp is placed in the described groove, be fixed with at least one LED lamp bar on the described after-frame, LED lamp on the described LED lamp bar is equidistantly arranged, described reflector plate is provided with and the corresponding through hole in described LED lamp position, makes described LED lamp and the described CCFL lamp cross-distribution that is placed in the described groove that is fixed on the described after-frame.
Correspondingly, described direct-light-type backlight group also comprises:
Be used to control first control module of described CCFL lamp; And
Be used to control second control module of the LED lamp on the described LED lamp bar.
Correspondingly, described direct-light-type backlight group comprises one second control module at least.
Correspondingly, described LED lamp is a RGB mixed light LED lamp.
Correspondingly, being fixed with at least one LED lamp bar on the described after-frame is specially:
Be fixed with at least one LED lamp bar by screw or thermal paste mode on the described after-frame.
Implement the utility model embodiment, has following beneficial effect: divide page position corresponding groove by on tube stand, being provided with the CCFL lamp, the CCFL lamp is placed in this groove, on after-frame, fix at least one LED lamp bar, LED lamp on the LED lamp bar is equidistantly arranged, and reflector plate is provided with and the corresponding through hole in LED lamp position, make LED lamp that is fixed on the after-frame and the CCFL lamp cross-distribution that is placed in the described groove, use LED lamp and CCFL lamp by this intersection, reduce the quantity of CCFL lamp, reduce the height in entire backlight source, thereby reduce the thickness of LCD display, realize that complete machine adopts the CCFL backlight thinner than tradition, makes power consumption lower in conjunction with the LED lamp again, contrast is higher, low-cost local dimming (Local Dimming) function that realizes.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of direct-light-type backlight group provided by the utility model;
Fig. 2 is the effect schematic diagram of straight type CCFL lamp and LED lamp combined crosswise among the utility model Fig. 1.
The specific embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Referring to Fig. 1, Fig. 1 is the structural representation of direct-light-type backlight group provided by the utility model, and the described direct-light-type backlight group of the utility model embodiment comprises preceding frame 11, panel Panel12, middle frame bracket 13, optics matrix group 14, tube stand 15, reflector plate 16 and after-frame 17.Preceding frame 11 is positioned on the Panel12, at least one and the corresponding groove of CCFL lamp distributing position are arranged on the tube stand 15, the CCFL lamp is placed in this groove, be fixed with at least one LED lamp bar on the after-frame 17, in actual mechanical process, this fixed form can adopt screw or thermal paste mode, the LED lamp is a RGB mixed light LED lamp, LED lamp on this LED lamp bar is equidistantly arranged, reflector plate 16 is positioned at tube stand 15 belows, its effect is that the light that will reveal reflects back, reduce the loss of light, reflector plate 16 is provided with and the corresponding through hole in LED lamp position, makes LED lamp that is fixed on the after-frame 17 and the CCFL lamp cross-distribution that is placed in the groove, fills zone dark relatively between the CCFL lamp by some LED lamp bars.
Need to prove that the direct-light-type backlight group also comprises first control module and second control module, first control module is used to control the CCFL lamp, and the CCFL lamp on the tube stand 15 is entirely by one first control module control; Second control module is used to control the LED lamp on the LED lamp bar, each lamp bar is separately by one second control module control, can adjust the brightness of certain bar LED lamp bar like this according to the picture situation separately, thereby realize the function of Local Dimming, realize effect energy-conservation, high-contrast.
In sum, a kind of direct-light-type backlight group that the utility model embodiment is provided, divide page position corresponding groove by on tube stand, being provided with the CCFL lamp, the CCFL lamp is placed in this groove, on after-frame, fix at least one LED lamp bar, LED lamp on the LED lamp bar is equidistantly arranged, and reflector plate is provided with and the corresponding through hole in LED lamp position, make LED lamp that is fixed on the after-frame and the CCFL lamp cross-distribution that is placed in the described groove, use LED lamp and CCFL lamp by this intersection, reduce the quantity of CCFL lamp, reduce the height in entire backlight source, thereby reduce the thickness of LCD display, realize that complete machine adopts the CCFL backlight thinner than tradition, make power consumption lower in conjunction with the LED lamp again, contrast is higher, the low-cost Local Dimming function that realizes.
Above disclosed only is a kind of preferred embodiment of the utility model, can not limit the interest field of the utility model certainly with this, and therefore the equivalent variations of being done according to the utility model claim still belongs to the scope that the utility model is contained.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (5)
1. direct-light-type backlight group, comprise preceding frame, panel Panel, middle frame bracket, optics matrix group, tube stand, reflector plate and after-frame, described optics matrix group, described tube stand and described reflector plate superpose in regular turn and are fixed in the described middle frame bracket, it is characterized in that, at least one and the corresponding groove of cold-cathode tube CCFL lamp distributing position are arranged on the described tube stand, described CCFL lamp is placed in the described groove, be fixed with at least one LED lamp bar on the described after-frame, LED lamp on the described LED lamp bar is equidistantly arranged, described reflector plate is provided with and the corresponding through hole in described LED lamp position, makes described LED lamp and the described CCFL lamp cross-distribution that is placed in the described groove that is fixed on the described after-frame.
2. direct-light-type backlight group as claimed in claim 1 is characterized in that, described direct-light-type backlight group also comprises:
Be used to control first control module of described CCFL lamp; And
Be used to control second control module of the LED lamp on the described LED lamp bar.
3. direct-light-type backlight group as claimed in claim 2 is characterized in that, described direct-light-type backlight group comprises one second control module at least.
4. direct-light-type backlight group as claimed in claim 1 or 2 is characterized in that, described LED lamp is a RGB mixed light LED lamp.
5. direct-light-type backlight group as claimed in claim 1 or 2 is characterized in that, is fixed with at least one LED lamp bar on the described after-frame and is specially:
Be fixed with at least one LED lamp bar by screw or thermal paste mode on the described after-frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202616313U CN201589140U (en) | 2009-12-17 | 2009-12-17 | Direct back light set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202616313U CN201589140U (en) | 2009-12-17 | 2009-12-17 | Direct back light set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201589140U true CN201589140U (en) | 2010-09-22 |
Family
ID=42748922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202616313U Expired - Fee Related CN201589140U (en) | 2009-12-17 | 2009-12-17 | Direct back light set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201589140U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102789090A (en) * | 2011-05-17 | 2012-11-21 | 康佳集团股份有限公司 | Novel direct-downward type light emitting liquid crystal screen |
| CN103392092A (en) * | 2011-03-18 | 2013-11-13 | 夏普株式会社 | Illumination device, display device, and television reception device |
-
2009
- 2009-12-17 CN CN2009202616313U patent/CN201589140U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103392092A (en) * | 2011-03-18 | 2013-11-13 | 夏普株式会社 | Illumination device, display device, and television reception device |
| CN103392092B (en) * | 2011-03-18 | 2015-08-12 | 夏普株式会社 | Lighting device, display unit, radiovisor |
| CN102789090A (en) * | 2011-05-17 | 2012-11-21 | 康佳集团股份有限公司 | Novel direct-downward type light emitting liquid crystal screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100922 Termination date: 20121217 |