CN106647021A - Direct type backlight module - Google Patents
Direct type backlight module Download PDFInfo
- Publication number
- CN106647021A CN106647021A CN201611026116.8A CN201611026116A CN106647021A CN 106647021 A CN106647021 A CN 106647021A CN 201611026116 A CN201611026116 A CN 201611026116A CN 106647021 A CN106647021 A CN 106647021A
- Authority
- CN
- China
- Prior art keywords
- mode set
- down straight
- aphototropism mode
- straight aphototropism
- backboard
- 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
Links
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
Abstract
The embodiment of the invention provides a direct type backlight module. The backlight module comprises a backplane, backlight sources installed inside the backplane and a diffusion plate which is installed inside the backplane and located above the backlight sources, the backplane is provided with a containing cavity sinking towards the inner side of the backplane, the backlight sources are distributed on the two sides of the containing cavity. Accordingly, the backplane is provided with the containing cavity containing a PCB, and the thickness of the whole machine can be effectively decreased.
Description
Technical field：
The present invention relates to field of liquid crystal, more particularly to a kind of down straight aphototropism mode set.
Background technology：
Liquid crystal indicator has many merits such as thin fuselage, power saving, radiationless, is widely used.Traditional
It is backlight liquid crystal indicator that liquid crystal indicator is most of, and it includes liquid crystal panel and backlight module.The work of liquid crystal panel
It is that liquid crystal molecule is placed in the middle of the parallel glass substrate of two panels as principle, has many in the middle of two panels glass substrate vertically and horizontally
Tiny electric wire, controlled by whether being powered liquid crystal molecule change direction, the light of backlight module is reflected into generation picture
Face.Because liquid crystal panel itself does not light, the light source provided by backlight module is needed to carry out normal show image, therefore, backlight
Module becomes one of key component of liquid crystal indicator.Backlight module can be divided into straight-down negative by the difference of the incoming position of light source
With two kinds of side-light type.Down straight aphototropism mode set be by backlight such as CCFL (Cold Cathode Fluorescent Lamp,
Cathode fluorescent tube) or LED (Light Emitting Diode, light emitting diode) be arranged on liquid crystal panel rear, directly
Form area source and be supplied to liquid crystal panel.
Down straight aphototropism mode set has the advantages that simple structure, low cost, brightness is high, uniformity is high, accurate backlight control,
Greater advantage is occupied in the competition with sidelight type backlight module.But shortcoming is also clearly, the module of down straight aphototropism mode set
Thickness itself is larger, especially for the larger module of OD (light mixing distance) type, to make its abundant mixed light need higher mould
Group thickness, especially along with components such as pcb board, bonnets after, cause that whole machine thickness is excessive, outward appearance is not good enough, with existing slimming
Trend runs in the opposite direction.
The content of the invention：
Down straight aphototropism mode set thickness is larger in solve prior art mentioned above, the problem that outward appearance is not good enough, this
It is bright that a kind of down straight aphototropism mode set is provided, the excessive problem of its energy effectively solving down straight aphototropism mode set thickness, better appearance, together
When whole machine cost can be greatly lowered.
The technical solution adopted for the present invention to solve the technical problems is：
Down straight aphototropism mode set, including backboard, the backlight that is installed in backboard and be installed in backboard and positioned at backlight
Diffuser plate above source, the backboard is provided with the accommodating cavity towards its inner side depression, and the backlight is distributed in the accommodating cavity
Both sides.
Down straight aphototropism mode set as above, is provided with fixed structure, the down straight aphototropism mode set in the accommodating cavity
Also include a pcb board on the backboard and cover plate, the pcb board be positioned in the accommodating cavity and with the fixed knot
Structure coordinates to be fixed, and the cover plate covers the accommodating cavity.
Down straight aphototropism mode set as above, the down straight aphototropism mode set also includes one located at the backboard and backlight
Catoptric arrangement between source.
Down straight aphototropism mode set as above, the catoptric arrangement is the reflecting layer being coated on the backboard.
Down straight aphototropism mode set as above, the catoptric arrangement is the reflection located between the backlight and backboard
Piece.
Down straight aphototropism mode set as above, the fixed structure is the screw pole on the accommodating cavity, described
Pcb board is fixed on accommodating cavity by the cooperation of screw and screw pole.
Down straight aphototropism mode set as above, the fixed structure is some lead columns on the accommodating cavity,
Offer some pilot holes corresponding with the lead column on the pcb board, the pcb board is matched somebody with somebody by pilot hole and lead column
Conjunction is fixed on accommodating cavity.
Down straight aphototropism mode set as above, the depth of the accommodating cavity determines by the light mixing distance of the backboard, and
It is adapted with the thickness of the pcb board.
Down straight aphototropism mode set as above, the opposite side relative with catoptric arrangement place side on the diffuser plate
Liquid crystal panel is provided with, optical diaphragm group is provided between the liquid crystal panel and the diffuser plate, the backlight is LED lamp bar.
Additionally, the present invention also provides a kind of liquid crystal indicator, including down straight aphototropism mode set as above.
Compared with prior art, the beneficial effect of down straight aphototropism mode set of the invention is that the backboard is provided with confession
The accommodating cavity that pcb board is placed, can effectively reduce whole machine thickness itself；Simultaneously after pcb board is put into accommodating cavity, cover plate only covers appearance
Cavity segment is put, bonnet cost and installation cost can be reduced, so as to reduce whole machine cost.
Description of the drawings：
Technical scheme in order to be illustrated more clearly that the embodiment of the present invention, below will be to making needed for embodiment description
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, can be obtaining other according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the side schematic view of the down straight aphototropism mode set of the present invention；
Fig. 2 is the plane schematic top plan view of the down straight aphototropism mode set of the present invention.
Specific embodiment：
In order that technical problem solved by the invention, technical scheme and beneficial effect become more apparent, below in conjunction with
Drawings and Examples, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
Refer to accompanying drawing 1 and accompanying drawing 2, a kind of down straight aphototropism mode set, including backboard 2, the backlight 1 that is installed in backboard
And be installed in backboard and the diffuser plate above backlight.In the present embodiment, the backlight be LED lamp bar, the LED
Lamp bar includes several LEDs, and several LED uniform intervals are arranged in the LED lamp bar.When being embodied as, the LED
Bar also can be replaced CCFL.Backboard is provided with the accommodating cavity 5 towards its inner side depression, and the LED lamp bar is distributed in the accommodating cavity
Both sides.In the present embodiment, fixed structure is provided with the accommodating cavity 5, the down straight aphototropism mode set also includes that one is located at institute
The pcb board 4 and cover plate 3 on backboard is stated, the pcb board is positioned in the accommodating cavity and coordinates with the fixed structure and fixes,
The cover plate is used for accommodating cavity capping.In this enforcement, by the way that pcb board is placed in accommodating cavity, mould can be effectively reduced
Organize thickness itself；Simultaneously after pcb board is put into after accommodating cavity, cover plate only covers accommodating cavity segment, can reduce cover plate cost and peace
This is dressed up, so as to reduce whole machine cost.
Further, the down straight aphototropism mode set also includes one located at the reflection knot between the backboard and backlight
Structure, the opposite side relative with catoptric arrangement place side is provided with liquid crystal panel, the liquid crystal panel and institute on the diffuser plate
State and be provided between diffuser plate optical diaphragm group.In the present embodiment, the catoptric arrangement is the reflecting layer being coated on the backboard, institute
Light that backlight sends is stated directly or via diffuser plate is entered after the reflection of reflecting layer, optical diaphragm group is finally entered and then is carried
For uniform area source, to improve the utilization rate of light.The depth of the accommodating cavity determines by the light mixing distance of the backboard, and with
The thickness of the pcb board is adapted.In the present embodiment, accommodating cavity depth is obtained after optical texture comprehensive assessment, mainly by
Module effect determine, it is ensured that the optical performance of backlight module, it is ensured that homogeneity, not light leak, not polarisation, while blast etc. application need
Ask；Pcb board requirement is elongated, and thickness is low, and terminal can be gone out by side, the mode of carrying on the back out is drawn, and pcb board size is mainly determined by module OD
Fixed, adjustable extent is larger.
Further, the accommodating cavity 5 is formed by metal stamping or injection molding, simple structure, and processing and fabricating is convenient.This
In embodiment, the fixed structure is the screw pole on the accommodating cavity, and the pcb board 4 is by screw and screw pole
Cooperation is fixed on accommodating cavity, and dismounting and change is convenient.When being embodied as, the fixed structure is alternatively on the accommodating cavity
Some lead columns or fastener, when fixed structure be lead column when, offer on the pcb board corresponding with lead column some
Pilot hole, the pcb board is fixed on accommodating cavity by the cooperation of pilot hole and lead column；When fixed structure is fastener,
By by pcb board buckle so as to be fixed on accommodating cavity, simple structure.
In the present embodiment, the backboard 2 is formed around with the side wall of backboard by buckle or the surface frame of screw fit.Have
Beneficial to stationary backplate and optical diaphragm group, it is ensured that the image quality of liquid crystal panel.
As alternative another preferred embodiment, it is with the difference of above-described embodiment, the catoptric arrangement
It is the reflector plate located between the diffuser plate and backboard, for the light from diffusion back out to be reflected back into into diffuser plate,
Unscattered light source reflection is entered back in light conducting region, to improve the utilization rate of light.
Additionally, present invention also offers a kind of liquid crystal indicator, including down straight aphototropism mode set as above.
The down straight aphototropism mode set of the present invention, the backboard is provided with the accommodating cavity placed for pcb board, can effectively reduce whole
Machine thickness itself；Simultaneously after pcb board is put into accommodating cavity, cover plate only covers accommodating cavity segment, can reduce bonnet cost and installation
Cost, so as to reduce whole machine cost.
It is described above as combining one or more embodiment that particular content is provided, does not assert the concrete reality of the present invention
Apply and be confined to these explanations.It is all approximate with the method for the present invention, structure etc., identical, or for present inventive concept under the premise of
Some technology deduction or replace are made, should all be considered as protection scope of the present invention.
Claims (10)
1. down straight aphototropism mode set, including backboard, the backlight being installed in backboard and it is installed in backboard and positioned at backlight
The diffuser plate of top, it is characterised in that：The backboard is provided with the accommodating cavity towards its inner side depression, and the backlight is distributed in institute
State the both sides of accommodating cavity.
2. down straight aphototropism mode set according to claim 1, it is characterised in that：Fixed structure is provided with the accommodating cavity,
The down straight aphototropism mode set also includes a pcb board on the backboard and cover plate, and the pcb board is positioned over described accommodating
Coordinate in chamber and with the fixed structure and fix, the cover plate covers the accommodating cavity.
3. down straight aphototropism mode set according to claim 1, it is characterised in that：The down straight aphototropism mode set also includes one
Catoptric arrangement between the backboard and backlight.
4. down straight aphototropism mode set according to claim 3, it is characterised in that：The catoptric arrangement is to be coated on the back of the body
Reflecting layer on plate.
5. down straight aphototropism mode set according to claim 3, it is characterised in that：The catoptric arrangement is located at the backlight
Reflector plate between source and backboard.
6. down straight aphototropism mode set according to claim 2, it is characterised in that：Institute's fixed structure is located at the appearance
The screw pole on chamber is put, the pcb board is fixed on accommodating cavity by the cooperation of screw and screw pole.
7. down straight aphototropism mode set according to claim 2, it is characterised in that：The fixed structure is located at described accommodating
Some lead columns on chamber, offer some pilot holes corresponding with the lead column on the pcb board, the pcb board passes through
Pilot hole is fixed on accommodating cavity with the cooperation of lead column.
8. down straight aphototropism mode set according to claim 2, it is characterised in that：The depth of the accommodating cavity is by the backboard
Light mixing distance determine, and be adapted with the thickness of the pcb board.
9. down straight aphototropism mode set according to claim 3, it is characterised in that：With the catoptric arrangement on the diffuser plate
The relative opposite side in place side is provided with liquid crystal panel, and optical diaphragm group is provided between the liquid crystal panel and the diffuser plate, described
Backlight is LED lamp bar.
10. a kind of liquid crystal indicator, it is characterised in that including the down straight aphototropism mode set described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611026116.8A CN106647021A (en) | 2016-11-16 | 2016-11-16 | Direct type backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611026116.8A CN106647021A (en) | 2016-11-16 | 2016-11-16 | Direct type backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106647021A true CN106647021A (en) | 2017-05-10 |
Family
ID=58808573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611026116.8A Pending CN106647021A (en) | 2016-11-16 | 2016-11-16 | Direct type backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106647021A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018223615A1 (en) * | 2017-06-06 | 2018-12-13 | 深圳Tcl新技术有限公司 | Direct type backlight module and display device |
| CN114442216A (en) * | 2022-01-29 | 2022-05-06 | 深圳创维－Rgb电子有限公司 | Backlight module and display device |
Citations (8)
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|---|---|---|---|---|
| CN1316668A (en) * | 2000-03-24 | 2001-10-10 | 株式会社日立制作所 | Liquid crystal display device |
| US20090213064A1 (en) * | 2008-02-27 | 2009-08-27 | Lg Display Co., Ltd. | Liquid crystal display device |
| CN201383058Y (en) * | 2009-03-27 | 2010-01-13 | 北京京东方光电科技有限公司 | Liquid crystal display module |
| CN102033339A (en) * | 2009-09-30 | 2011-04-27 | 深圳帝光电子有限公司 | Direct type ultrathin liquid crystal display device |
| CN102661535A (en) * | 2012-04-13 | 2012-09-12 | 深圳市华星光电技术有限公司 | Direct type backlight module |
| CN104075179A (en) * | 2013-03-29 | 2014-10-01 | 友达光电股份有限公司 | Backlight module and display device comprising same |
| CN204287674U (en) * | 2014-07-08 | 2015-04-22 | 万昌隆电子科技（深圳）有限公司 | A kind of slim LCD liquid crystal module |
| CN104820313A (en) * | 2015-05-26 | 2015-08-05 | 武汉华星光电技术有限公司 | Direct type LED (light emitting diode) backlight module and liquid crystal display device |
-
2016
- 2016-11-16 CN CN201611026116.8A patent/CN106647021A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316668A (en) * | 2000-03-24 | 2001-10-10 | 株式会社日立制作所 | Liquid crystal display device |
| US20090213064A1 (en) * | 2008-02-27 | 2009-08-27 | Lg Display Co., Ltd. | Liquid crystal display device |
| CN201383058Y (en) * | 2009-03-27 | 2010-01-13 | 北京京东方光电科技有限公司 | Liquid crystal display module |
| CN102033339A (en) * | 2009-09-30 | 2011-04-27 | 深圳帝光电子有限公司 | Direct type ultrathin liquid crystal display device |
| CN102661535A (en) * | 2012-04-13 | 2012-09-12 | 深圳市华星光电技术有限公司 | Direct type backlight module |
| CN104075179A (en) * | 2013-03-29 | 2014-10-01 | 友达光电股份有限公司 | Backlight module and display device comprising same |
| CN204287674U (en) * | 2014-07-08 | 2015-04-22 | 万昌隆电子科技（深圳）有限公司 | A kind of slim LCD liquid crystal module |
| CN104820313A (en) * | 2015-05-26 | 2015-08-05 | 武汉华星光电技术有限公司 | Direct type LED (light emitting diode) backlight module and liquid crystal display device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018223615A1 (en) * | 2017-06-06 | 2018-12-13 | 深圳Tcl新技术有限公司 | Direct type backlight module and display device |
| US11598990B2 (en) | 2017-06-06 | 2023-03-07 | Shenzhen Tcl New Technology Co., Ltd. | Direct type backlight module and display device |
| CN114442216A (en) * | 2022-01-29 | 2022-05-06 | 深圳创维－Rgb电子有限公司 | Backlight module and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |