CN105242454A - Ultrathin direct illumination-type backlight module and liquid crystal display device - Google Patents
Ultrathin direct illumination-type backlight module and liquid crystal display device Download PDFInfo
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- CN105242454A CN105242454A CN201510663804.4A CN201510663804A CN105242454A CN 105242454 A CN105242454 A CN 105242454A CN 201510663804 A CN201510663804 A CN 201510663804A CN 105242454 A CN105242454 A CN 105242454A
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- light
- ultra
- mode set
- down straight
- aphototropism mode
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
Abstract
The invention discloses an ultrathin direct illumination-type backlight module and a liquid crystal display device. The ultrathin direct illumination-type backlight module comprises a backboard, a reflection sheet, an LED light bar, and a light bar board. The reflection sheet is arranged on the backboard, the light bar board is arranged on the reflection sheet, the LED light bar is arranged at the backside of the light bar board, and the light bar board is provided with a plurality of light emitting holes used for emitting light. Because the light is reflected twice, the light mixing distance can be prolonged without increase of thickness. The light emits to a diffuser plate and an optical film through the light emitting holes, light emitting sources can be increased without increase of LEDs, light can be more uniformly transmitted to the diffuser plate and the optical film, the uniformity of brightness of a product can be improved. Design of a direct illumination-type product can be achieved without optical lenses, the reflection sheet does not need holes corresponding to positions of LEDs, the cost of the product can be greatly raised, the difficulty of design of the product can be reduced, and the period of design of the product can be shortened,.
Description
Technical field
The present invention relates to field of liquid crystal display, particularly relate to a kind of ultra-thin down straight aphototropism mode set and liquid crystal indicator.
Background technology
Directly-down liquid crystal backlight module mainly comprises the parts such as module backboard, reflector plate, straight-down negative LED lamp bar, diffuser plate, blooming piece and liquid crystal panel, and straight-down negative LED lamp bar mainly comprises the parts such as pcb board, LED and optical lens.
In traditional directly-down liquid crystal backlight module design, LED mixes the optical lens (light mixing distance and reflector plate are to the distance of diffuser plate lower surface) of corresponding light mixing distance, cost the reflector plate of coupling, by diffuser plate and blooming piece, luminous energy is sent to liquid crystal panel equably and forms directly-down liquid crystal module.
In prior art, after backlight module light mixing distance is determined, as light mixing distance is comparatively large, so whole liquid crystal module is thicker, and if light mixing distance is less, so easily there is lamp shadow shape bright spot depending on effect.So product thickness and product are difficult to take into account depending on effect, and light mixing distance constant when improve product and can only be realized by amendment Lens Design, the means such as light type that increase LED quantity or amendment LED depending on effect grade, increase LED volume cost too high, amendment lens and the LED light type cycle oversize, difficulty is larger.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of ultra-thin down straight aphototropism mode set and liquid crystal indicator, be intended to solve the problem that existing backlight module product thickness and product are difficult to take into account.
Technical scheme of the present invention is as follows:
A kind of ultra-thin down straight aphototropism mode set, wherein, comprise backboard, reflector plate, LED lamp bar and lamp batten, described reflector plate is arranged on backboard, described lamp batten is arranged on above reflector plate, described LED lamp bar is arranged on lamp bar back, described lamp batten is provided with several light holes for bright dipping.
Described ultra-thin down straight aphototropism mode set, wherein, described backboard surrounding is provided with the step for carrying described lamp batten.
Described ultra-thin down straight aphototropism mode set, wherein, described step is provided with the screw hole for installing described lamp batten.
Described ultra-thin down straight aphototropism mode set, wherein, described light hole is round hole.
Described ultra-thin down straight aphototropism mode set, wherein, the light hole diameter near LED lamp bar is less than the light hole diameter away from LED lamp bar.
Described ultra-thin down straight aphototropism mode set, wherein, lamp batten two sides paving white oil.
Described ultra-thin down straight aphototropism mode set, wherein, backboard is provided with the support column for fixing described lamp batten.
Described ultra-thin down straight aphototropism mode set, wherein, described backboard surrounding is provided with inclined-plane, and described step is arranged on inclined-plane.
Described ultra-thin down straight aphototropism mode set, wherein, is disposed with blooming piece, diffuser plate, panel above described lamp batten.
A kind of liquid crystal indicator, wherein, comprises ultra-thin down straight aphototropism mode set as above.
Beneficial effect: adopt structure of the present invention, because light have passed secondary reflection, reaches the effect not increasing product thickness and hoisting light mixing distance.Same, due to multiple light holes reserved in lamp batten, light passes through light hole bright dipping to diffuser plate and blooming piece, so the present invention can reach do not increase LED number to increase the effect of light emitting source, make light more uniformly be sent to diffuser plate and blooming piece, improve the brightness uniformity of product.In addition, by the present invention, optical lens can not be used to carry out straight-down negative product design, reflector plate, without the need to carrying out perforate design for LED position, is saved cost of products greatly, is reduced product design difficulty and shorten the product design cycle.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of ultra-thin down straight aphototropism mode set preferred embodiment of the present invention;
Fig. 2 is the light path principle figure of a kind of ultra-thin down straight aphototropism mode set preferred embodiment of the present invention.
Embodiment
The invention provides a kind of ultra-thin down straight aphototropism mode set and liquid crystal indicator, for making object of the present invention, technical scheme and effect clearly, clearly, the present invention is described in more detail below.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Refer to Fig. 1, Fig. 1 is the structural representation of a kind of ultra-thin down straight aphototropism mode set preferred embodiment of the present invention, as shown in the figure, it comprises backboard 110, reflector plate 120, LED lamp bar 140 and lamp batten 130, described reflector plate 120 is arranged on backboard 110, described lamp batten 130 is arranged on above reflector plate 120, and described LED lamp bar 140 is arranged on lamp batten 130 back side, described lamp batten 130 is provided with several light holes 131 for bright dipping.
The present invention has overturned the traditional design of down straight aphototropism mode set, lamp batten 130 is set above backboard 110, this lamp batten 130 covers whole backboard 110, LED lamp bar 140 is then positioned over lamp batten 130 back side, and on lamp batten 130, reserved multiple light hole 131 for bright dipping, the light that such LED lamp bar 140 sends will be sent on the reflector plate 120 of backboard 110, as shown in Figure 2, then lamp batten 130 is reflected back by reflector plate 120 again, again by light hole 131 reserved on lamp batten 130 by the parts above beam projecting to lamp batten 130, such as diffuser plate and blooming piece.
Because light have passed secondary reflection, so the present invention can reach the effect not increasing product thickness and hoisting light mixing distance.Same, due to multiple light holes 131 reserved in lamp batten 130, so light is finally to diffuser plate and blooming piece by light hole 131 bright dipping, so present invention can be implemented in do not increase LED number basis on increase the effect of light emitting source, make light more uniformly be sent to diffuser plate and blooming piece, improve the brightness uniformity of product.By the present invention, can not use optical lens, reflector plate 120 is without the need to carrying out perforate design for LED position, and namely reflector plate 120 is without the need to perforate, saves cost of products greatly, reduces product design difficulty and shorten the product design cycle.
Described backboard 110 surrounding is provided with the step for carrying described lamp batten 130.Described lamp batten 130 is carried in the effect of this step, makes the placement that lamp batten 130 is more stable, bright dipping evenly.This step is in same level, makes lamp batten 130 horizontal positioned.Lamp batten 130 has a segment distance with the reflector plate 120 above backboard 110, lamp batten 130 also has a segment distance with the diffuser plate above lamp batten 130, in practical application, these two distances need mutually to regulate to reach optimum efficiency, such as preferably according to the ratio setting of 1:1, certainly also ratio is not limited thereto, can according to both actual conditions adjustment proportional range.
In order to better fix described lamp batten 130, described step is provided with the screw hole 102 for installing described lamp batten 130.Correspondingly, be also provided with screw hole at described lamp batten 130, when mounted, the screw hole 102 of lamp batten 130 aimed at the screw hole on step, then mounting screw on screw hole, lamp batten 130 and backboard 110 are carried out lock fixing.Screw hole 102 on described step is provided with multiple, and is evenly distributed on the surrounding of described step.
Described backboard 110 surrounding is provided with inclined-plane, and described step is arranged on inclined-plane, and namely the end of backboard 110 is upturned, thus is fixed assembling with the center of side.
Described light hole 131 is preferably round hole, and such optics can more uniformly reflect away from reflector plate 120, to improve uniformity of luminance.
Light hole 131 diameter near LED lamp bar 140 is less than light hole 131 diameter away from LED lamp bar 140.Namely the near light hole of distance LED lamp bar 140 is less, and the light hole 131 that distance LED lamp bar 140 is far away is comparatively large, and the high light bright dipping of close like this LED lamp bar 140 is less, and the low light level bright dipping away from LED lamp bar 140 is more, make light like this evenly.Certainly, described light hole 131 also can be square, rectangle, rhombus, ellipse etc. shape, but arrangement principle is less than the light hole 131 away from LED lamp bar 140 near its size of light hole 131 needs of LED lamp bar 140.During concrete enforcement, light hole size can be arranged according to the mode of notch cuttype, such as arrange the light hole of three kinds of sizes: minimum light hole and LED lamp bar 140 nearest, the distance of medium light hole and LED lamp bar 140 is medium, and maximum light hole and LED lamp bar 140 are farthest.Certain above-mentioned distance all refers to the distance between light hole and its nearest LED lamp bar 140.
In addition, although light hole is not of uniform size, light hole is regular array on lamp batten, and namely the light hole that is adjacent of each light hole is apart from identical.
Further, lamp batten 130 two sides paving white oil, to improve the reflection efficiency of light.Light is sent to the reflector plate 120 on backboard 110 by LED lamp bar 140 when luminescence, reflector plate 120 by light reflection to lamp batten 130 lower surface, light to be sent to diffuser plate above backboard 110 and blooming piece by the light hole in lamp batten 130 by most of light wherein, and light reflection retroreflective sheeting 120 carries out reflecting until light sends out lamp batten 130 by the white oil of lamp batten 130 lower surface by other a part of light again.Preferably, the thickness of lamp batten 130 two sides white oil is preferably 20 ~ 25 μm, and under this thickness condition, reflectivity is higher, and preferably, and the thickness of white oil is 22 μm.
Further, backboard 110 is provided with the support column 101 for fixing described lamp batten 130.This support column 101 bottom is fixed on backboard 110, top through lamp batten 130, for more stably fixed light batten 130.Particularly, its two symmetrical pawls having support column body and be arranged on support column body lower end of described support column 101, backboard is extended downwards in these two symmetrical pawl lower ends, and fastens with backboard.The Bottomattached of support column body is on the reflector plate 120 of backboard 110, and the upper end projection of support column body extends upwardly to outside lamp batten 130, supports lamp batten 130.
Further, blooming piece 150, diffuser plate 160, panel 170 is disposed with above described lamp batten 130.Side is fixed with center 200 and front frame 190 respectively, and center 200 is also horizontally arranged with the buffer bar 180 for fixed panel.
The present invention also provides a kind of liquid crystal indicator, comprises ultra-thin down straight aphototropism mode set as above.
Instantiation: above scheme is applied in 42 cun of ultra-thin down straight aphototropism mode set designs of light mixing distance 15mm.LED number uses 5*12(5 and 12 strings) design, lamp batten locks on step reserved in the middle of backboard, LED lamp bar places lamp bar back, circular light hole is had in lamp batten, light is sent to the reflector plate under backboard by LED lamp bar, reflector plate by light reflection to lamp batten lower surface, wherein light to be sent to diffuser plate on backboard and blooming piece by the circular light hole in lamp batten by most of light, light reflection retroreflective sheeting carries out reflecting until light sends out lamp batten by the white oil of lamp batten lower surface by fraction light again, fluid,matching crystal panel forms ultra-thin down straight aphototropism mode set again.
In sum, by structure of the present invention, because light have passed secondary reflection, reach the effect not increasing product thickness and hoisting light mixing distance.Same, due to multiple light holes reserved in lamp batten, light passes through light hole bright dipping to diffuser plate and blooming piece, so the present invention can reach do not increase LED number to increase the effect of light emitting source, make light more uniformly be sent to diffuser plate and blooming piece, improve the brightness uniformity of product.In addition, by the present invention, optical lens can not be used to carry out straight-down negative product design, reflector plate, without the need to carrying out perforate design for LED position, is saved cost of products greatly, is reduced product design difficulty and shorten the product design cycle.
Should be understood that, application of the present invention is not limited to above-mentioned citing, 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 claims of the present invention.
Claims (10)
1. a ultra-thin down straight aphototropism mode set, it is characterized in that, comprise backboard, reflector plate, LED lamp bar and lamp batten, described reflector plate is arranged on backboard, described lamp batten is arranged on above reflector plate, described LED lamp bar is arranged on lamp bar back, described lamp batten is provided with several light holes for bright dipping.
2. ultra-thin down straight aphototropism mode set according to claim 1, is characterized in that, described backboard surrounding is provided with the step for carrying described lamp batten.
3. ultra-thin down straight aphototropism mode set according to claim 2, is characterized in that, described step is provided with the screw hole for installing described lamp batten.
4. ultra-thin down straight aphototropism mode set according to claim 1, is characterized in that, described light hole is round hole.
5. ultra-thin down straight aphototropism mode set according to claim 4, is characterized in that, the light hole diameter near LED lamp bar is less than the light hole diameter away from LED lamp bar.
6. ultra-thin down straight aphototropism mode set according to claim 1, is characterized in that, lamp batten two sides paving white oil.
7. ultra-thin down straight aphototropism mode set according to claim 1, is characterized in that, backboard is provided with the support column for fixing described lamp batten.
8. ultra-thin down straight aphototropism mode set according to claim 2, is characterized in that, described backboard surrounding is provided with inclined-plane, and described step is arranged on inclined-plane.
9. ultra-thin down straight aphototropism mode set according to claim 1, is characterized in that, is disposed with blooming piece, diffuser plate, panel above described lamp batten.
10. a liquid crystal indicator, is characterized in that, comprises the ultra-thin down straight aphototropism mode set as described in any one of claim 1 ~ 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510663804.4A CN105242454A (en) | 2015-10-15 | 2015-10-15 | Ultrathin direct illumination-type backlight module and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510663804.4A CN105242454A (en) | 2015-10-15 | 2015-10-15 | Ultrathin direct illumination-type backlight module and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105242454A true CN105242454A (en) | 2016-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510663804.4A Pending CN105242454A (en) | 2015-10-15 | 2015-10-15 | Ultrathin direct illumination-type backlight module and liquid crystal display device |
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| CN (1) | CN105242454A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107092133A (en) * | 2017-05-23 | 2017-08-25 | 张家港康得新光电材料有限公司 | A kind of straight-down negative LED light source component, backlight module and display panel |
| CN107092132A (en) * | 2017-05-23 | 2017-08-25 | 张家港康得新光电材料有限公司 | A kind of straight-down negative LED light source component, backlight module and display panel |
| CN107390425A (en) * | 2017-05-23 | 2017-11-24 | 张家港康得新光电材料有限公司 | A kind of straight-down negative LED light source module, backlight module and display panel |
| CN107422536A (en) * | 2017-09-12 | 2017-12-01 | 青岛海信电器股份有限公司 | A kind of down straight aphototropism mode set and display device |
| CN109036116A (en) * | 2018-06-21 | 2018-12-18 | 深圳创维－Rgb电子有限公司 | A kind of reflection cavity, backlight module and display |
| CN111308783A (en) * | 2020-03-25 | 2020-06-19 | 深圳市隆利科技股份有限公司 | LED backlight device and display equipment |
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| CN203190216U (en) * | 2013-03-29 | 2013-09-11 | 创维液晶器件(深圳)有限公司 | Liquid crystal display device and direct-type backlight module thereof |
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| KR20080064508A (en) * | 2007-01-05 | 2008-07-09 | 삼성전자주식회사 | Backlight unit and liquid crystal display device having the same |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107092133A (en) * | 2017-05-23 | 2017-08-25 | 张家港康得新光电材料有限公司 | A kind of straight-down negative LED light source component, backlight module and display panel |
| CN107092132A (en) * | 2017-05-23 | 2017-08-25 | 张家港康得新光电材料有限公司 | A kind of straight-down negative LED light source component, backlight module and display panel |
| CN107390425A (en) * | 2017-05-23 | 2017-11-24 | 张家港康得新光电材料有限公司 | A kind of straight-down negative LED light source module, backlight module and display panel |
| CN107422536A (en) * | 2017-09-12 | 2017-12-01 | 青岛海信电器股份有限公司 | A kind of down straight aphototropism mode set and display device |
| CN109036116A (en) * | 2018-06-21 | 2018-12-18 | 深圳创维－Rgb电子有限公司 | A kind of reflection cavity, backlight module and display |
| CN111308783A (en) * | 2020-03-25 | 2020-06-19 | 深圳市隆利科技股份有限公司 | LED backlight device and display equipment |
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Application publication date: 20160113 |
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| RJ01 | Rejection of invention patent application after publication |