CN105242455A - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
- Publication number
- CN105242455A CN105242455A CN201510703846.6A CN201510703846A CN105242455A CN 105242455 A CN105242455 A CN 105242455A CN 201510703846 A CN201510703846 A CN 201510703846A CN 105242455 A CN105242455 A CN 105242455A
- Authority
- CN
- China
- Prior art keywords
- backlight module
- plate
- groove bottom
- isolation frame
- holding tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- G02F1/133608—Direct backlight including particular frames or supporting means
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133314—Back frames
Abstract
The invention provides a backlight module. The backlight module comprises a backing plate, multiple separation frames arrayed in a matrix, LED lamp sources located in all the separation frames and a diffusion plate, in which an accommodation groove is formed. The multiple separation frames are arranged on the groove bottom surface of the accommodation groove. The diffusion plate covers the backing plate and arranged opposite to the groove bottom surface. The invention further discloses a display device.
Description
Technical field
The present invention relates to back light model setting technology field, particularly relate to a kind of backlight module and display device.
Background technology
At present, liquid crystal indicator has been widely used in various electronic product as the display unit of electronic equipment, backlight module is then a vitals in liquid crystal indicator, wherein, adopt LED-backlit, be mainly divided into straight-down negative (directlight) backlight and side entering type (edgelight) backlight.Along with the development of lcd technology, for display image quality require also more and more higher, especially one for the sharpness of picture and the requirement of dynamic contrast also more and more higher.In order to realize the high dynamic contrast of display image quality, just need display can realize the luminous energy of region control accurately power.In order to realize the needs of the high region control luminous energy power of liquid crystal, backlight module is just needed to have the luminous energy of region control accurately power.
Summary of the invention
The present invention relates to a kind of backlight module and a kind of display device, can feasible region control light effect.
The invention provides a kind of backlight module, it is characterized in that, described backlight module comprises backboard, the isolation frame of several one-tenth matrix arrangement, the LED lamp source being positioned at each isolation frame and diffuser plate, described backboard is formed with holding tank, described several isolation frame is located in the groove bottom of described holding tank, and described diffuser plate is placed on described backboard and is oppositely arranged with groove bottom.
Wherein, described isolation frame is that the plate body of white plastic material surrounds, and avoids producing obvious vestige when backlight module is luminous.
Wherein, described groove bottom is L to the height of described diffuser plate, described in surround isolation frame the height of plate body be H, wherein, H≤4/5L.
Wherein, described backboard comprises base plate and is positioned at the side plate of backplate surface periphery, and described base plate and side plate surround described holding tank, and described base plate forms described groove bottom.
Wherein, described isolation frame and described groove bottom hold fixing by draw-in groove, or described isolation frame and described groove bottom are fixed by screw connection manner.
Wherein, the plate body surrounding isolation frame described in is less than the thickness of described other parts of plate body away from the thickness of the end of described groove bottom.
Wherein, described backlight module also comprises reflector plate, and described reflector plate is stacked in the groove bottom of described holding tank, and described LED lamp source is positioned at described reflector plate towards on the surface of diffuser plate.
Wherein, the surface of described diffuser plate described holding tank being dorsad superimposed with blooming piece, becoming divergent light source injection for evenly being spread by the source light of incidence.
Wherein, have space between the plate body surrounding described isolation frame, described space is less than or equal to 1 millimeter.
The present invention also provides a kind of display device, and it comprises liquid crystal panel and above-described backlight module.
Backlight module of the present invention adopts matrix form distribution isolation frame to form area of isolation with each LED light source of interval, and then form the area of isolation of light source accurately at several interval, when using backlight module, the light source of light source area of isolation can be controlled accurately, realize the high dynamic contrast of liquid crystal display.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained as these accompanying drawings.
Fig. 1 is the structural representation of backlight module of the present invention.
Fig. 2 is the schematic diagram of the depression angle of backlight module described in Fig. 1.
Fig. 3 is display device structure schematic diagram of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is clearly and completely described.
Refer to Fig. 1 and Fig. 2, preferred embodiment of the present invention provides a kind of backlight module, in display device for display device provides light source.Described backlight module 10 comprises backboard 11, the isolation frame 12 of several one-tenth matrix arrangement, the LED lamp source 13 being positioned at each isolation frame 12 and diffuser plate 14.Described backboard 11 is formed with holding tank 111, and described several isolation frame 12 is located in the groove bottom 112 of described holding tank 111, and described diffuser plate 14 is placed on described backboard 10 and is oppositely arranged with groove bottom 112.
In the present embodiment, described backboard 11 is rectangle channel-shaped structure, for accommodating described isolation frame 12 and LED lamp source 13.Wherein, described LED lamp source 13 realizes powering-on function by aluminium base.Described backboard 11 comprises base plate 113 and is positioned at the side plate 114 of surface periphery, and described base plate 113 surrounds described holding tank 111 with side plate 114, and the face towards described holding tank of described base plate forms described groove bottom 112.Side plate 114 described in the present embodiment is arranged perpendicular to described base plate.Described diffuser plate 14 periphery supports described side plate 114 and is closed by described holding tank 111, and described diffuser plate 14, for breaing up luminous flux, allows light be uniformly distributed and can also control shooting angle.
Further, described backlight module 10 also comprises reflector plate 15, described reflector plate 15 is stacked in the groove bottom 112 of described holding tank 111, described LED lamp source 13 is positioned at described reflector plate 15 towards on the surface of diffuser plate 14, by described reflector plate 15 LED lamp source 13 launched and penetrate through diffuser plate 14 after the light source bottom holding tank reflexes to described diffuser plate 14, make full use of LED lamp source 13, avoid wasting resource.
Further, the surface of described diffuser plate 14 described holding tank 111 is dorsad superimposed with blooming piece 16.Described blooming piece 16 becomes divergent light source injection for evenly being spread by the source light of incidence, such light becomes very even, can carry on the back the hot spot problem solving optical mode group and produce.
Further, described isolation frame 12 is made, as lined polymethyl ethylene carbonate (PPC), ABS plastic etc. for plastic material.Described isolation frame 12 surrounds for white plate body, avoids producing obvious vestige when backlight module is luminous.Isolate frame 12 in the present embodiment be rectangular configuration and surround light source area of isolation 121, the 12 one-tenth matrix arrangements of described several isolation frame, be appreciated that each isolation frame described can be surrounded by 4 plate bodys, isolate frame compact siro spinning technology or there is less gap for every two.Or be interpreted as, described every two isolation frames have 7 plate bodys and surround, and that is not having two to isolate between frame 12 is do not have space, is latticed connection design.When the plate body of described several isolation frame is latticed connection design, have space between the plate body surrounding isolation frame, described space is less than or equal to 1 millimeter, avoids the light affecting adjacent light source area of isolation 121 around.
Further, described groove bottom 112 is L to the height of described diffuser plate 14, described in surround isolation frame 12 the height of plate body be H, wherein, H≤4/5L.And described in surround isolation frame plate body be less than the thickness of described other parts of plate body away from the thickness of the end of described groove bottom, in the present embodiment, described plate body becomes pointed away from groove bottom end, the above design is in order to when backlight module works, avoid going out at optical device the isolated area and profile and cause brightness irregularities that described isolation frame 12 formed, and then avoid the display affecting display device.
Further, described isolation frame 12 holds fixing with described groove bottom 112 by draw-in groove; Or described isolation frame 12 is fixed by screw connection manner with described groove bottom 112.Fixedly referred to by draw-in groove and groove is set in described groove bottom 112, described isolation frame is inserted in described draw-in groove perpendicular to described groove bottom and is located by friction force.Described screw connection manner refers to and is fixed in described groove bottom by modes such as screw pins by isolation frame, this can isolation frame bottom extension board is set for gib screw.The present embodiment is fixed preferably through draw-in groove mode.
Refer to Fig. 3, display device of the present invention also comprises liquid crystal panel 20, and described liquid crystal panel 20 is loaded on described backlight module 10, provides light source by the light through described blooming piece 16 for described liquid crystal panel 20, and then realizes picture display.Described blooming piece is through described isolation frame 12 and is close to the setting of described groove bottom.
Backlight module of the present invention adopts matrix form distribution isolation frame 12 to form area of isolation with each LED light source 13 of interval, and then form the area of isolation of light source accurately 121 at several interval, when using backlight module, the light source of light source area of isolation can be controlled accurately, realize the high dynamic contrast of liquid crystal display.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a backlight module, it is characterized in that, described backlight module comprises backboard, the isolation frame of several one-tenth matrix arrangement, the LED lamp source being positioned at each isolation frame and diffuser plate, described backboard is formed with holding tank, described several isolation frame is located in the groove bottom of described holding tank, and described diffuser plate is placed on described backboard and is oppositely arranged with groove bottom.
2. backlight module as claimed in claim 1, is characterized in that, described isolation frame is that the material material plate body of white surrounds.
3. backlight module as claimed in claim 2, it is characterized in that, described groove bottom is L to the height of described diffuser plate, described in surround the plate body of isolating frame height be H, wherein, H≤4/5L.
4. backlight module as claimed in claim 3, it is characterized in that, described backboard comprises base plate and is positioned at the side plate of backplate surface periphery, and described base plate and side plate surround described holding tank, and described base plate forms described groove bottom towards the face of described holding tank.
5. backlight module as claimed in claim 4, it is characterized in that, described isolation frame and described groove bottom hold fixing by draw-in groove, or described isolation frame and described groove bottom are fixed by screw connection manner.
6. the backlight module as described in any one of claim 1-5, is characterized in that, described in surround isolation frame plate body be less than the thickness of described other parts of plate body away from the thickness of the end of described groove bottom.
7. the backlight module as described in any one of claim 1-5, is characterized in that, described backlight module also comprises reflector plate, and described reflector plate is stacked in the groove bottom of described holding tank, and described LED lamp source is positioned at described reflector plate towards on the surface of diffuser plate.
8. the backlight module as described in any one of claim 1-5, is characterized in that, the surface of described diffuser plate described holding tank is dorsad superimposed with blooming piece.
9. backlight module as claimed in claim 2, is characterized in that, have space between the plate body surrounding described isolation frame, described space is less than or equal to 1 millimeter.
10. a display device, is characterized in that, comprises liquid crystal panel and the backlight module as described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510703846.6A CN105242455A (en) | 2015-10-27 | 2015-10-27 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510703846.6A CN105242455A (en) | 2015-10-27 | 2015-10-27 | Backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105242455A true CN105242455A (en) | 2016-01-13 |
Family
ID=55040145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510703846.6A Pending CN105242455A (en) | 2015-10-27 | 2015-10-27 | Backlight module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105242455A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109445186A (en) * | 2018-12-20 | 2019-03-08 | 青岛海信电器股份有限公司 | Display device |
| CN110967875A (en) * | 2019-12-30 | 2020-04-07 | 深圳市瀚达美电子有限公司 | Vehicle-mounted direct type backlight module and display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201439903U (en) * | 2009-08-07 | 2010-04-21 | 北京京东方光电科技有限公司 | Direct-type backlight source module |
| CN102798043A (en) * | 2012-08-02 | 2012-11-28 | 青岛海信电器股份有限公司 | Direct-lighting type backlight module |
| CN202835011U (en) * | 2012-08-03 | 2013-03-27 | 创维液晶器件(深圳)有限公司 | Direct type backlight module used for 3D display and display device with same |
| CN203115725U (en) * | 2013-03-20 | 2013-08-07 | 京东方科技集团股份有限公司 | Scanning type backlight module and liquid crystal display device |
-
2015
- 2015-10-27 CN CN201510703846.6A patent/CN105242455A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201439903U (en) * | 2009-08-07 | 2010-04-21 | 北京京东方光电科技有限公司 | Direct-type backlight source module |
| CN102798043A (en) * | 2012-08-02 | 2012-11-28 | 青岛海信电器股份有限公司 | Direct-lighting type backlight module |
| CN202835011U (en) * | 2012-08-03 | 2013-03-27 | 创维液晶器件(深圳)有限公司 | Direct type backlight module used for 3D display and display device with same |
| CN203115725U (en) * | 2013-03-20 | 2013-08-07 | 京东方科技集团股份有限公司 | Scanning type backlight module and liquid crystal display device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109445186A (en) * | 2018-12-20 | 2019-03-08 | 青岛海信电器股份有限公司 | Display device |
| WO2020125065A1 (en) * | 2018-12-20 | 2020-06-25 | 青岛海信电器股份有限公司 | Display device |
| CN112433408A (en) * | 2018-12-20 | 2021-03-02 | 海信视像科技股份有限公司 | Display device |
| CN110967875A (en) * | 2019-12-30 | 2020-04-07 | 深圳市瀚达美电子有限公司 | Vehicle-mounted direct type backlight module and display device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160113 |
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| RJ01 | Rejection of invention patent application after publication |