CN202835011U - Direct type backlight module used for 3D display and display device with same - Google Patents
Direct type backlight module used for 3D display and display device with same Download PDFInfo
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- CN202835011U CN202835011U CN 201220383486 CN201220383486U CN202835011U CN 202835011 U CN202835011 U CN 202835011U CN 201220383486 CN201220383486 CN 201220383486 CN 201220383486 U CN201220383486 U CN 201220383486U CN 202835011 U CN202835011 U CN 202835011U
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Abstract
The utility model relates to the field of liquid crystal display and provides a direct type backlight module used for 3D (three dimensional) display. The backlight module comprises a rear panel, LED (light-emitting diode) lamp bars arranged on the rear panel, reflective sheets, a diffusion plate and an optical diaphragm, wherein the reflective sheets, a diffusion plate and an optical diaphragm are arranged on the LED lamp bars; and a cone structure capable of blocking light rays is arranged between every two adjacent LED lamp bars on the reflective sheets and formed by folding a sheet plate body. The utility model further provides a display device with the direct type backlight module for 3D display. The cone structures capable of blocking the light rays are arranged on the reflective sheets in the backlight module and formed by folding the sheet plate bodies, so that the backlight module is simple in structure, convenient to make and low in cost. Each cone structure has the effect of preventing the light sources of the two adjacent LED lamp bars from interfering with each other in the backlight scanning technology adopted by active shutter type 3D, so that the crosstalk phenomenon is avoided.
Description
Technical field
The utility model relates to field of liquid crystal display, especially relates to a kind of down straight aphototropism mode set for the 3D demonstration.
Background technology
The principle that 3D shows is that the image that beholder's right and left eyes is seen is not identical, left eye is seen the image of corresponding left eye, and right eye is seen the image of corresponding right eye, and such two eyes have just had parallax, because the existence of parallax, meeting forms the illusion of a solid in people's brain.
The 3D liquid crystal indicator that uses on the market at present adopts active-shutter 3D scanning technique.This technology mainly is to realize 3D effect by the refresh rate that improves picture, adopt line by line scanning technique backlight (lighting line by line backlight), by image is divided into two frame by frame, form two a series of paintings faces of corresponding left eye and right eye, interlock continuously and show, Infrared Projector makes left and right sides eyes see respective picture in the correct moment on the left and right sides glasses switch of Synchronization Control shutter type 3 D spectacles simultaneously.Suppose that backlight has two row, at a time, the first row backlight lightening shows left-eye view, and then the first row is backlight dark, and the second row is backlight bright, shows equally left-eye view, then shows line by line right-eye view lower a moment.At this moment just there is a problem, be that the first row has shown that and then left-eye view shows right-eye view lower a moment, but when lining by line scan owing to the data of 3D demonstration, in the time of the first row backlight lightening, light is diffused into the second row, so that the second row still rests on left-eye view, will cause the right and left eyes view crosstalk like this.Be that the beholder also sees eye image when seeing left-eye image, see left-eye image when perhaps right eye is seen eye image, will in brain, form ghost image like this.
The utility model content
The purpose of this utility model is to solve the shortcoming that occurs crosstalking in the liquid-crystal apparatus of existing 3D demonstration, and a kind of down straight aphototropism mode set for the 3D demonstration is provided.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of down straight aphototropism mode set for the 3D demonstration, comprise backboard, place LED lamp bar on the described backboard, place reflector plate and diffuser plate and blooming piece on the described LED lamp bar, between adjacent two LED lamp bars, have the cone structure that can stop that light sees through on the described reflector plate.
Further, described cone structure forms by reflector plate is folding.
Further, the height of described cone structure projection is lower than the bottom surface of described diffuser plate.
Further, the angle of described cone structure convex top is 0 ° ~ 160 °.
Particularly, the angle of described cone structure convex top is 10 °.
Another purpose of the present utility model is also to provide a kind of display unit, comprises the above-mentioned down straight aphototropism mode set that 3D shows that is used for.
The beneficial effect of the down straight aphototropism mode set that shows for 3D provided by the utility model is: the reflector plate of down straight aphototropism mode set provided by the utility model is provided with one can stop the cone structure that light sees through, this cone structure forms by slice plate body is folding, therefore should be simple in structure, be convenient to making, with low cost.This cone structure plays the effect that intercepts adjacent two LED lamp bar light source phase mutual interference in the scanning technique backlight that active-shutter 3D adopts, therefore avoid the phenomenon that occurs crosstalking.
The beneficial effect of display unit provided by the utility model is: the cone structure of this backlight module can play the effect that intercepts adjacent two LED lamp bar light source phase mutual interference in the scanning technique backlight that active-shutter 3D adopts, effectively avoid the phenomenon that occurs crosstalking in the 3D demonstration.
Description of drawings
Fig. 1 is the structural representation that is used for the down straight aphototropism mode set that 3D shows that the utility model embodiment provides;
Fig. 2 is the top view that is used for the down straight aphototropism mode set that 3D shows that the utility model embodiment provides;
Among the figure: 1-backboard, 2-LED lamp bar, 21-the first row LED lamp bar, 22-the second row LED lamp bar, 3-reflector plate, 31-cone structure, 4-diffuser plate, 5-blooming piece.
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.
Referring to Fig. 1-Fig. 2, be a kind of down straight aphototropism mode set for the 3D demonstration provided by the utility model, comprise backboard 1, place LED lamp bar 2 on the described backboard 1, place reflector plate 3 and diffuser plate 4 and blooming piece 5 on the described LED lamp bar 2, between adjacent two LED lamp bars 2, have the cone structure 31 that can stop that light sees through on the described reflector plate 3.Between adjacent LED lamp body 2, be provided with cone structure 31, play the problem that intercepts the 2 luminous phase mutual interference of two adjacent LED lamp bars.When 3D shows, suppose that backlight has two row, at a time, the first row backlight lightening shows left-eye view, and then the first row is backlight dark, and the second row is backlight bright, shows equally left-eye view, then shows line by line right-eye view lower a moment.At this moment just there is a problem, be that the first row has shown that and then left-eye view shows right-eye view lower a moment, but this moment is when the first row backlight lightening, light can't be diffused into the second row owing to being subject to stopping of cone structure 31, although so that the second row still rests on left-eye view, owing to there not being light to enter, people can not see the view of left eye again, until the second portable lighter when bright, just can be seen the left-eye view that again refreshes.Thereby solved when appearing at lower a moment that the first row shown left-eye view in the 3D demonstration field in the active-shutter 3D technology and then show right-eye view, the second row still rests on the demonstration left-eye view, thereby the problem of the right and left eyes view crosstalk that causes.
Further, as shown in Figure 1, described cone structure forms by slice plate body is folding.And slice plate body is the same with the reflector plate material, therefore should be simple in structure, be convenient to making, and with low cost.
Further, in specific embodiment of the utility model, described cone structure 31 places in the middle of two adjacent described LED lamp bars 2.See also Fig. 2, the middle of the first row LED lamp bar 21 and the second row LED lamp bar 22 is provided with cone structure 31.Cone structure 31 places two LED lamp bars, 2 middles, and the light for the light source of the every LED of delegation lamp bar that evenly distributes is dispersed out is uniform width.
Further, the height of described cone structure projection is lower than the bottom surface of described diffuser plate 4.Particularly, in the utility model embodiment, the height of described cone structure projection is no more than 1mm apart from described diffuser plate 4.The cone structure height of projection has been controlled the brightness uniformity directly over the taper.If tapered protrusion is close to diffuser plate 4, then can above tapered protrusion, produce blanking bar, if tapered protrusion is excessive apart from diffuser plate 4, then can reduces barriering effect and may above taper, produce bright band.
Further, the angle of described cone structure convex top is 0 ° ~ 160 °.Particularly, in the utility model embodiment, the angle of described cone structure convex top is 10 °.This angle will affect the LED emergent ray on diffuser plate 4 distribution so that affect brightness uniformity backlight.Because it is not identical that the emergent ray of different LED itself distributes, this angle will change with the LED emergent ray distribution characteristics that adopts is different, and acting in conjunction decides whole brightness uniformity backlight.The LED emergent ray distribution characteristics that adopts in the present embodiment is maximum for light intensity on ± 75 ° of angles.
Of the present utility modelly also provide a kind of display unit, comprised the above-mentioned down straight aphototropism mode set that 3D shows that is used for.This display unit is owing to having adopted above-mentioned down straight aphototropism mode set for the 3D demonstration, because the cone structure of this backlight module can play the effect that intercepts adjacent two LED lamp bar light source phase mutual interference in the scanning technique backlight that active-shutter 3D adopts, effectively avoid the phenomenon that occurs crosstalking in the 3D demonstration.
Below only be preferred embodiment of the present utility model, not in order to limiting the utility model, all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (6)
1. one kind is used for the down straight aphototropism mode set that 3D shows, comprise backboard, place LED lamp bar on the described backboard, place reflector plate and diffuser plate and blooming piece on the described LED lamp bar, it is characterized in that between adjacent two LED lamp bars, having the cone structure that can stop that light sees through on the described reflector plate.
2. the down straight aphototropism mode set for the 3D demonstration as claimed in claim 1 is characterized in that, described cone structure forms by slice plate body is folding.
3. the down straight aphototropism mode set for the 3D demonstration as claimed in claim 1 is characterized in that, the height of described cone structure projection is lower than the bottom surface of described diffuser plate.
4. the down straight aphototropism mode set for the 3D demonstration as claimed in claim 1 is characterized in that, the angle of described cone structure convex top is 0 °～160 °.
5. the down straight aphototropism mode set for the 3D demonstration as claimed in claim 4 is characterized in that, the angle of described cone structure convex top is 10 °.
6. a display unit is characterized in that, comprises each described down straight aphototropism mode set for the 3D demonstration such as claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220383486 CN202835011U (en) | 2012-08-03 | 2012-08-03 | Direct type backlight module used for 3D display and display device with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220383486 CN202835011U (en) | 2012-08-03 | 2012-08-03 | Direct type backlight module used for 3D display and display device with same |
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| Publication Number | Publication Date |
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| CN202835011U true CN202835011U (en) | 2013-03-27 |
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| CN 201220383486 Expired - Lifetime CN202835011U (en) | 2012-08-03 | 2012-08-03 | Direct type backlight module used for 3D display and display device with same |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899989A (en) * | 2014-03-19 | 2014-07-02 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN104048222A (en) * | 2014-07-05 | 2014-09-17 | 福州大学 | Area light source packaging LED and 3D-LED display system with same |
| CN104317069A (en) * | 2014-11-19 | 2015-01-28 | 京东方科技集团股份有限公司 | Backlight module and display device |
| WO2015070468A1 (en) * | 2013-11-14 | 2015-05-21 | 深圳市华星光电技术有限公司 | Light guide plate and side-entering backlight module using light guide plate |
| CN105242455A (en) * | 2015-10-27 | 2016-01-13 | 深圳市华星光电技术有限公司 | Backlight module and display device |
| CN106609959A (en) * | 2016-12-27 | 2017-05-03 | 广州弥德科技有限公司 | A direct type directional backlight source |
| CN111913324A (en) * | 2020-08-18 | 2020-11-10 | 深圳市康冠科技股份有限公司 | Mini-LED backlight module and display device |
-
2012
- 2012-08-03 CN CN 201220383486 patent/CN202835011U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015070468A1 (en) * | 2013-11-14 | 2015-05-21 | 深圳市华星光电技术有限公司 | Light guide plate and side-entering backlight module using light guide plate |
| CN103899989A (en) * | 2014-03-19 | 2014-07-02 | 京东方科技集团股份有限公司 | Backlight module and display device |
| WO2015139423A1 (en) * | 2014-03-19 | 2015-09-24 | 京东方科技集团股份有限公司 | Backlight module and display device |
| US10208918B2 (en) | 2014-03-19 | 2019-02-19 | Boe Technology Group Co., Ltd. | Backlight module and display device |
| CN104048222A (en) * | 2014-07-05 | 2014-09-17 | 福州大学 | Area light source packaging LED and 3D-LED display system with same |
| CN104317069A (en) * | 2014-11-19 | 2015-01-28 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN105242455A (en) * | 2015-10-27 | 2016-01-13 | 深圳市华星光电技术有限公司 | Backlight module and display device |
| CN106609959A (en) * | 2016-12-27 | 2017-05-03 | 广州弥德科技有限公司 | A direct type directional backlight source |
| CN111913324A (en) * | 2020-08-18 | 2020-11-10 | 深圳市康冠科技股份有限公司 | Mini-LED backlight module and display device |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20160204 Address after: 518057 Guangdong city of Shenzhen province Nanshan District Gao Xin Road SKYWORTH building A block 13-16 Patentee after: SHENZHEN SKYWORTH-RGB ELECTRONIC Co.,Ltd. Address before: 518000, 1 floor, SKYWORTH science and technology industrial complex, Shiyan Industrial Street, Shiyan district, Shenzhen, Baoan District, Guangdong Patentee before: SKYWORTH LCD MODULES (SHENZHEN) Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |