CN204962474U - Laser back of body light source device and liquid crystal disply device - Google Patents
Laser back of body light source device and liquid crystal disply device Download PDFInfo
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- CN204962474U CN204962474U CN201520673143.9U CN201520673143U CN204962474U CN 204962474 U CN204962474 U CN 204962474U CN 201520673143 U CN201520673143 U CN 201520673143U CN 204962474 U CN204962474 U CN 204962474U
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- source apparatus
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Abstract
The utility model discloses a laser back of body light source device and liquid crystal disply device, a serial communication port, include: laser module and light guide plate, the laser module includes laser tube core and biconcave mirror, the laser tube core is used for producing laser lamp -house, laser lamp -house is redgreenblue laser, the biconcave mirror be used for with laser lamp -house turns into parallel line source, the light guide plate includes side, plane of reflection and play plain noodles, be used for with the line source turns into the area source. In this way, the utility model discloses can realize that present laser display device is ultra -thin, produced image colour gamut scope is wider, characteristics such as the picture vividness has obtained improving by a wide margin, the excitation high, luminance is high, environmental protection, assembly are simple.
Description
Technical field
The utility model relates to technical field of laser display, particularly a kind of laser backlight source apparatus and liquid crystal indicator.
Background technology
All show as light source with CCFL cathode fluorescent tube, white light LEDs light emitting diode in current illumination display industry, all show vividness at image, excitation is inadequate.Although LED LED technology comparative maturity, it is high that light sends out efficiency, and consumed power is low, life-span length, environmental protection, and white light LEDs also has its shortcoming as display light source: the first, and single LEDs brightness is not high enough, needs to adopt plurality of LEDs; The second, use more LED, cause power consumption comparatively large, temperature is higher; 3rd, it is also wide less than laser that color presents scope.
Utility model content
The technical problem that the utility model mainly solves is to provide a kind of laser backlight source apparatus and liquid crystal indicator, with redgreenblue laser instrument as light illumination, Display Technique field, a kind of red, green, blue one-wavelength laser module swashs backlight and can be used for illumination, the fields such as display, through red, green, blue one-wavelength laser module, light-source angle is amplified to 100 °, light guide plate line source is converted into area source, guide-lighting backboard has reflector plate, there is diffusion sheet in front, after prismatic lens, image is made to show gamut range through liquid crystal surface wider, picture detail is more fine and smooth true to nature, colour is more bright-coloured.Solve color difference that existing Display Technique exists, the problem such as image effect is poor, excitation is low.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of laser backlight source apparatus, is characterized in that, comprising: laser module and light guide plate; Described laser module comprises laser die and biconcave mirror, and described laser die is for generation of LASER Light Source, and described LASER Light Source is redgreenblue laser, and described biconcave mirror is used for described LASER Light Source to be converted into parallel line source; Described light guide plate comprises side, reflecting surface and exiting surface, for described line source is converted into area source.
Wherein, described laser backlight source apparatus also comprises PCB substrate, and described laser module is arranged in described PCB substrate.
Wherein, described line source emission angle α is no less than 100 °.
Wherein, described reflecting surface is provided with site, described site has the wire distributed intensities uniformity on described reflecting surface, for described line source is converted to area source.
Wherein, described line source enters described light guide plate from described side, and the angle of departure through described site self spreads and propagates in described light guide plate space.
Wherein, described site is printing points or injection point.
Wherein, described laser backlight source apparatus also comprises reflector plate, and described reflector plate is arranged on described reflecting surface one end away from described exiting surface, for improving the utilization rate of described area source.
Wherein, described laser backlight source apparatus also comprises diffusion sheet, and described diffusion sheet is close to the exiting surface of described light guide plate, for generation of uniform area source.
Wherein, described laser backlight source apparatus also comprises prismatic lens, and described prismatic lens is arranged on described diffusion sheet one end away from described reflector plate, for increasing the brightness of area source.
A kind of liquid crystal indicator, comprise described laser backlight source apparatus and liquid crystal panel, described liquid crystal panel is arranged on described prismatic lens one end away from described diffusion sheet.
The beneficial effects of the utility model are: the situation being different from prior art, in the utility model, the laser module hybrid light source of a kind of novel red, green, blue laser die and biconcave lens composition, side entering type LASER Light Source enters light guide plate, realize existing laser television, laser display volume is ultra-thin, institute's image gamut is wider, adopts the LCD TV of white CCFL with LED to compare with existing backlight module light source, and color expression range has brought up to about 2 times.Colour gamut (NTSC) extensively reaches more than 130%, the feature such as picture vividness is greatly improved, excitation is high, brightness is high, environmental protection, assembling are simple.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of laser backlight source apparatus of the utility model embodiment and liquid crystal indicator;
Fig. 2 is the structural representation that the utility model embodiment laser module is connected with PCB substrate;
Fig. 3 is the structural representation of the utility model embodiment laser module.
Description of reference numerals: 11. laser modules, 12. light guide plates, 13.PCB substrate, 14. reflector plates, 15. diffusion sheets, 16. prismatic lenses, 17. liquid crystal panels, 111. laser dies, 112. biconcave mirrors, 121. sides, 122. reflectings surface, 123. exiting surfaces, 124. sites.
Detailed description of the invention
For the ease of understanding the utility model, below in conjunction with the drawings and specific embodiments, the utility model is described in detail.It should be noted that, when element is stated " being fixed on " another element, it can directly on another element or can there is one or more element placed in the middle therebetween.When an element is stated " connection " another element, it can be directly connected to another element or can there is one or more element placed in the middle therebetween.The term " vertical " that this description uses, " level ", "left", "right" and similar statement are just for illustrative purposes.
Unless otherwise defined, all technology of using of this description and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model understand usually.The object of the term used in description of the present utility model in this description just in order to describe concrete embodiment is not for limiting the utility model.The term "and/or" that this description uses comprises arbitrary and all combinations of one or more relevant Listed Items.
Consult Fig. 1 to Fig. 3, laser backlight source apparatus comprises: laser module 11 and light guide plate 12; Laser module 11 comprises laser die 111 and biconcave mirror 112, and laser die 111 is for generation of LASER Light Source, and LASER Light Source is redgreenblue laser, and biconcave mirror 112 is for being converted into parallel line source by LASER Light Source; Light guide plate 12 comprises side 121, reflecting surface 122 and exiting surface 123, for line source is converted into area source.
As shown in Figure 2, laser backlight source apparatus also comprises PCB substrate 13, and laser module 11 is arranged in PCB substrate 13.Laser module 11 is arranged in PCB substrate 13, has good radiating effect, reduces laser module temperature in use, improves service life, also improves the internal temperature of liquid crystal indicator to a certain extent.
The emission angle α of line source is no less than 100 °.In the utility model, the large emission angle of laser line light source makes image gamut wider, the LCD TV of white CCFL with LED is adopted to compare with existing backlight module light source, color expression range has brought up to about 2 times, colour gamut (NTSC) extensively reaches more than 130%, and picture vividness is greatly improved.
Reflecting surface 122 is provided with site 124, site 124 has the wire distributed intensities uniformity on reflecting surface 122, for line source is converted to area source.The rational deployment of site 124 can improve the brightness of laser backlight source apparatus, and make laser backlight source apparatus have better performance, user's experience sense is better.
Line source 121 enters light guide plate 12 from the side, and the angle of departure through site 124 self spreads and propagates in light guide plate 12 space.Site 124 receives line source, and line source carries out diffuse reflection under the effect of site 124, and line source is converted to area source, and the area source of the overwhelming majority penetrates through exiting surface 123, and the area source of few part penetrates through reflecting surface 122.
In the utility model, site 124 is printing points or injection point.
Laser backlight source apparatus also comprises reflector plate 14, and reflector plate 14 is arranged on reflecting surface 122 one end away from exiting surface 123, for improving the utilization rate of area source.。The area source penetrated from reflecting surface is reflected back light guide plate by reflector plate, and through exiting surface injection, again make use of because diffuse reflection enters into the line source of reflector plate, avoid the waste of area source, have the effect of energy-conserving and environment-protective, too increase the brightness of area source.
Laser backlight source apparatus also comprises diffusion sheet 15, and diffusion sheet 15 is close to the exiting surface 123 of light guide plate 12, for generation of uniform area source.Diffusion sheet 15 makes area source that irregular refraction occur, and area source produces effective homogeneity; In addition, diffusion sheet 15 effectively can also alleviate or eliminate some bad phenomenon, and as Newton's ring, interference fringe, blooming scratches, black-white point etc.
Laser backlight source apparatus also comprises prismatic lens 16, and prismatic lens 16 is arranged on diffusion sheet 15 one end away from reflector plate 14, for increasing the brightness of area source.It is vertical direction injection that the area source of all directions is changed its direction of propagation by prismatic lens 16, and area source produces the effect of optically focused, when human eye vertical light guide plate 12 surface looks the brightest, substantially increases the brightness of laser backlight.
A kind of liquid crystal indicator comprises liquid crystal panel 17 and laser backlight source apparatus, and liquid crystal panel 17 is arranged on prismatic lens 16 one end away from diffusion sheet 15.Prismatic lens 16 is connected with liquid crystal panel 17, and area source is incident upon liquid crystal panel 17, for liquid crystal panel 17 provides laser backlight.Laser backlight source apparatus disclosed in the utility model can be applicable to any liquid crystal indicator (as: computer, TV, communication product, video product, portable product, projection products, audio-visual projection product, billboards or similar product) or the light-emitting device (as vehicle-mounted light fixture, head carry light fixture or similar assembly) with related needs.
In the utility model, a kind of new pattern laser backlight arrangement is made up of laser die and biconcave mirror, produce redgreenblue laser hybrid light source, the angular emission of laser line light source through being greater than 100 degree, side entering type LASER Light Source enters light guide plate, realizes existing laser television, laser display volume is ultra-thin, and institute's image gamut is wider, adopt the LCD TV of white CCFL with LED to compare with existing backlight module light source, color expression range has brought up to about 2 times.Colour gamut (NTSC) extensively reaches more than 130%, the feature such as picture vividness is greatly improved, excitation is high, brightness is high, environmental protection, assembling are simple.
It should be noted that, preferably embodiment of the present utility model is given in description of the present utility model and accompanying drawing thereof, but, the utility model can be realized by many different forms, be not limited to the embodiment described by this description, these embodiments not as the extra restriction to the utility model content, provide the object of these embodiments be make the understanding of disclosure of the present utility model more comprehensively thorough.Further, above-mentioned each technical characteristic continues combination mutually, is formed not at above-named various embodiment, is all considered as the scope that the utility model description is recorded; Further, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to the utility model claims.
Claims (10)
1. a laser backlight source apparatus, is characterized in that, comprising: laser module and light guide plate;
Described laser module comprises laser die and biconcave mirror, and described laser die is for generation of LASER Light Source, and described LASER Light Source is redgreenblue laser, and described biconcave mirror is used for described LASER Light Source to be converted into parallel line source;
Described light guide plate comprises side, reflecting surface and exiting surface, for described line source is converted into area source.
2. laser backlight source apparatus according to claim 1, is characterized in that, also comprise PCB substrate, and described laser module is arranged in described PCB substrate.
3. laser backlight source apparatus according to claim 2, is characterized in that, the emission angle α of described line source is no less than 100 °.
4. laser backlight source apparatus according to claim 3, is characterized in that, described reflecting surface is provided with site, and described site has the wire distributed intensities uniformity on described reflecting surface, for described line source is converted to area source.
5. laser backlight source apparatus according to claim 4, is characterized in that, described line source enters described light guide plate from described side, and the angle of departure through described site self spreads and propagates in described light guide plate space.
6. laser backlight source apparatus according to claim 5, is characterized in that, described site is printing points or injection point.
7. laser backlight source apparatus according to claim 1, is characterized in that, also comprise reflector plate, and described reflector plate is arranged on described reflecting surface one end away from described exiting surface, for improving the utilization rate of described area source.
8. laser backlight source apparatus according to claim 1, is characterized in that, also comprise diffusion sheet, and described diffusion sheet is close to the exiting surface of described light guide plate, for generation of uniform area source.
9. laser backlight source apparatus according to claim 8, is characterized in that, also comprise prismatic lens, and described prismatic lens is arranged on described diffusion sheet one end away from described reflector plate, for increasing the brightness of described area source.
10. a liquid crystal indicator, comprise liquid crystal panel and laser backlight source apparatus according to claim 9, described liquid crystal panel is arranged on described prismatic lens one end away from described diffusion sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520673143.9U CN204962474U (en) | 2015-09-01 | 2015-09-01 | Laser back of body light source device and liquid crystal disply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520673143.9U CN204962474U (en) | 2015-09-01 | 2015-09-01 | Laser back of body light source device and liquid crystal disply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204962474U true CN204962474U (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520673143.9U Expired - Fee Related CN204962474U (en) | 2015-09-01 | 2015-09-01 | Laser back of body light source device and liquid crystal disply device |
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| CN (1) | CN204962474U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107565044A (en) * | 2017-08-02 | 2018-01-09 | 深圳市华星光电技术有限公司 | Splicing display device and preparation method thereof |
| WO2018228115A1 (en) * | 2017-06-16 | 2018-12-20 | 京东方科技集团股份有限公司 | Light source assembly, backlight module and display device |
| CN113391394A (en) * | 2021-07-01 | 2021-09-14 | 广东小天才科技有限公司 | Backlight generating device and display device |
-
2015
- 2015-09-01 CN CN201520673143.9U patent/CN204962474U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018228115A1 (en) * | 2017-06-16 | 2018-12-20 | 京东方科技集团股份有限公司 | Light source assembly, backlight module and display device |
| US10551673B2 (en) | 2017-06-16 | 2020-02-04 | Chongqing Boe Optoelectronics Technology Co., Ltd. | Light source assembly, back light moudle and display device |
| CN107565044A (en) * | 2017-08-02 | 2018-01-09 | 深圳市华星光电技术有限公司 | Splicing display device and preparation method thereof |
| CN107565044B (en) * | 2017-08-02 | 2019-07-02 | 深圳市华星光电技术有限公司 | Splicing display device and preparation method thereof |
| CN113391394A (en) * | 2021-07-01 | 2021-09-14 | 广东小天才科技有限公司 | Backlight generating device and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160620 Address after: 518000 Guangdong city of Shenzhen province Nanshan District Xili town tea light Road No. 1089 in the middle of integrated circuit design and application of Industrial Park 408-1 Patentee after: Shenzhen aurora Centrix Technology Ltd. Address before: 100176, Beijing economic and Technological Development Zone, Yongchang North Road, No. 3, building 8304, 3 units, 3 layers, -1, Beijing Patentee before: BEIJING WEISHI JOINT TECHNOLOGY CO., LTD. |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161109 Address after: 621000, building 1, Nanhu Electronic Information Industrial Park, Mianyang, Sichuan Patentee after: SINOLASER PROJECTION TECHNOLOGY CO., LTD. Address before: 518000 Guangdong city of Shenzhen province Nanshan District Xili town tea light Road No. 1089 in the middle of integrated circuit design and application of Industrial Park 408-1 Patentee before: Shenzhen aurora Centrix Technology Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20190901 |
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| CF01 | Termination of patent right due to non-payment of annual fee |