CN107942581A - A kind of down straight aphototropism mode set structure - Google Patents
A kind of down straight aphototropism mode set structure Download PDFInfo
- Publication number
- CN107942581A CN107942581A CN201711159995.6A CN201711159995A CN107942581A CN 107942581 A CN107942581 A CN 107942581A CN 201711159995 A CN201711159995 A CN 201711159995A CN 107942581 A CN107942581 A CN 107942581A
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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
- G02F1/133603—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
- G02F1/133605—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
- G02F1/133608—Direct backlight including particular frames or supporting means
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
Disclosed by the invention is a kind of down straight aphototropism mode set structure in LCD TV field, including straight-down negative fabric backplanes, the LED lamp bar and reflecting paper that are arranged on the big face in bottom of straight-down negative fabric backplanes, it is characterized in that：The left and right sides of the straight-down negative fabric backplanes is connected using arc transiting surface with the big face in bottom, the LED lamp bar includes one, and set along the vertical central axes in the big face in bottom, the reflecting paper is laid on the arc transiting surface of the big face in bottom and both sides, and LED lamp bar passes through the reflecting paper.The both sides of straight-down negative fabric backplanes are arranged to arc transiting surface by the present invention, the form of thick middle thin edge is presented in backlight cavity, consumer has the thin effect of vision from product in terms of the side of left and right, coordinate this straight-down negative structure, only it is vertically placed on a lamp bar among screen, lamp bar quantity can be reduced, have the advantages that reduction material cost, assembling are simple and convenient compared to traditional straight-down negative module, product cost and form have competitiveness.
Description
Technical field
The present invention relates to LCD TV field, more particularly to a kind of down straight aphototropism mode set structure.
Background technology
LCD TV includes liquid crystal display panel and backlight module.Since liquid crystal display panel does not shine, it is necessary to borrow in itself
Image is normally shown by the light source of backlight module offer, therefore, backlight module becomes the key part and component of liquid crystal display device
One of.
With science and technology progress, light emitting diode (LED) has the advantages that environmentally friendly, energy saving progressively to substitute cold-cathode tube
(CCFL) light source in backlight module is become.Backlight module is divided into side entrance back module according to the difference of backlight incoming position
With two kinds of down straight aphototropism mode set.Direct-light type LED backlight module is that LED light source is arranged on liquid crystal display panel rear, is passed through
A variety of diaphragms cooperatively form area source and are supplied to liquid crystal display panel in LED light bar and backlight.
Since direct-type backlight is not worth expensive light guide plate compared to side entrance back, so direct-type backlight cost is big
Width reduces, and has been widely cited in LCD TV.And traditional downward back is just by the secondary lens in lamp bar to backlight
Carry out homogenizing processing, it is necessary to there are enough optical cavity distances to carry out even light, so the complete machine that direct-type backlight is made is thicker, apparent visual is not
It is good.If straight-down negative optical cavity is done it is thin if need increase backlight in lamp bead quantity and optical diaphragm, cost increase it is more, lack warp
Ji property.
The content of the invention
To overcome existing down straight aphototropism mode set above shortcomings, the technical problems to be solved by the invention are：Carry
Down straight aphototropism mode set structure low for a kind of simple in structure, cost and with the thin effect of vision.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of down straight aphototropism mode set structure, including straight-down negative fabric backplanes, the bottom for being arranged on straight-down negative fabric backplanes
LED lamp bar and reflecting paper on big face, the left and right sides of the straight-down negative fabric backplanes uses arc transiting surface and bottom
Big face connection, the LED lamp bar includes one, and is set along the vertical central axes in the big face in bottom, and the reflecting paper is laid with
On the arc transiting surface of the big face in bottom and both sides, LED lamp bar passes through the reflecting paper.
It is further that the big face in bottom ensures light mixing distance H deviations≤1mm among direct-type backlight, bottom is big
The length L in face is not more than the 30% of whole straight-down negative fabric backplanes length A.
It is further the globoidal structure that the both sides of the straight-down negative fabric backplanes are integrally formed with the big face in bottom.
Be further, the LED lamp bar include PCB circuit board, the LED lamp bead in PCB circuit board with
And lens in LED lamp bead are covered on, the light that the LED lamp bead is sent is after lens refraction homogenizes, and most of light is from lens
The left and right sides is projected, and small part light is projected from lens front surface.
It is further that the lens are in the bow-tie shape of intermediate thin both ends thickness, lens front surface is two cambered surfaces, both sides
For horn-type opening, and the center of the both sides arc transiting surface towards straight-down negative fabric backplanes.
It is further the strip or be divided into the structure that multistage splices that the lens in the vertical direction is integrated,
Each of which section lens correspond to 3~4 LED lamp beads.
It is further that two cambered surfaces of the lens front surface use material of the light transmittance 50%~60%, and both sides are adopted
It is more than 80% material with light transmittance.
It is further that the lens are integrally more than 80% material using light transmittance, are set in the cambered surface of lens front surface
There are one layer of light absorption paint or film.
The beneficial effects of the invention are as follows：The both sides of straight-down negative fabric backplanes are arranged to arc transiting surface, backlight cavities first
The form of thick middle thin edge is presented in body, and consumer has the thin effect of vision from product in terms of the side of left and right, secondly, under coordinating this straight
Formula structure, is only vertically placed among screen with a lamp bar, can reduce lamp bar quantity, have compared to traditional straight-down negative module
Reduce material cost, assemble the advantages that simple and convenient, product cost and form have competitiveness.
Brief description of the drawings
Fig. 1 is structure top view of the present invention.
Fig. 2 is structural front view of the present invention.
Fig. 3 is existing back light module unit structure top view.
It is 1- straight-down negative fabric backplanes to be marked in figure, 2-LED lamp bar components, 3- reflecting papers, the big face in 11- bottoms, 12- arcs
Shape transition face, 21-PCB circuit boards, 22-LED lamp beads, 23- lens.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, down straight aphototropism mode set structure of the invention, including straight-down negative fabric backplanes 1, be arranged on it is straight
LED lamp bar 2 and reflecting paper 3 on the big face 11 in bottom of formula backboard 1, the left and right of the straight-down negative fabric backplanes 1
Both sides are connected using the face 11 big with bottom of arc transiting surface 12, and the LED lamp bar 2 includes one, and along the big face 11 in bottom
Vertical central axes are set, and the reflecting paper 3 is laid on the arc transiting surface 12 of the big face 11 in bottom and both sides, LED light bar group
Part 2 passes through the reflecting paper 3.
Sink as shown in figure 3, the both sides of traditional straight-down negative fabric backplanes are wide-angle, consumer is from electricity in terms of the side of left and right
Thicker depending on machine complete machine thickness, visual impression is bad；The present invention uses arc transiting surface 12, can give the thin effect of vision.In addition,
Since the arc transiting surface 12 of both sides has remittance light effect, one only can be set on the vertical central axes in the big face 11 in bottom
Bar LED lamp bar 2 can ensure lighting effect, and compared to traditional straight-down negative module, The present invention reduces lamp bar quantity, has drop
The advantages that low material cost, simple and convenient assembling.
In order to make the LED lamp bar 2 among the big face 11 in bottom reach good lighting effect, the big face 11 in bottom should
Ensure that light mixing distance H deviations≤1mm among direct-type backlight, the length L in the big face 11 in bottom are not more than whole straight-down negative structure
The 30% of 1 length A of backboard., can also be by institute according to the different either to the particular/special requirement of appearance of actual LCD TV size
The both sides and the big face 11 in bottom for stating straight-down negative fabric backplanes 1 are arranged to integrally formed globoidal structure.
The LED lamp bar 2 includes PCB circuit board 21, the LED lamp bead 22 in PCB circuit board 21 and cover
Lens 23 in LED lamp bead 22, the light that the LED lamp bead 22 is sent by lens 23 refraction homogenize after, most of light from
The left and right sides of lens 23 is projected, and small part light is projected from the front of lens 23.Traditional lens are mostly hemispherical, and LED lamp bead is sent out
Light is to homogenous diffusion around lens sphere after the lens for the light gone out, therefore in order to ensure the illumination bar of whole screen
Part is, it is necessary to a plurality of LED lamp bar.The present invention due to mainly using the arc transiting surface 12 of 1 both sides of straight-down negative fabric backplanes come
Reflection light, therefore have particular/special requirement to lens 23, using similar to the principle that concavees lens scatter by most of light toward both sides
Refraction, then reflexes to backlight module front using reflecting paper 3.
In order to reach optimal refraction effect, by the lens 23 be arranged to intermediate thin both ends it is thick be similar to bowknot
Shape, the front of lens 23 is two cambered surfaces, and cambered surface preferably gradually slows down from middle toward both sides, to reach good even light
Effect, both sides are horn-type opening, and the center of the both sides arc transiting surface 12 towards straight-down negative fabric backplanes 1.It is saturating by this
After the refraction of mirror, only small part light can be projected from the cambered surface of lens front surface, and most light can be from the loudspeaker of both sides
Shape opening is irradiated in the reflecting paper 3 of the arc transiting surface 12 of 1 both sides of straight-down negative fabric backplanes, so as to reach even light effect.
The lens and LED light of traditional LED lamp bar are one-to-one, i.e., 1 lamp bead corresponds to 1 lens, is filling
Timing lens and LED lamp bead will be attached to above lamp bar PCB circuit board respectively, and the quantity of LED lamp bead is more, and lens are more, adds
Work process is also more complicated.The structure type that the present invention is spliced using integrally formed lenticular lens or multistage bar shaped, 3~
4 LED lamp beads 22 correspond to 1 section of lens 23, and lens total quantity can be reduced by comparing traditional scheme, reduce processing program, improve effect
Rate, reduces cost.
Further, if lens 23 do not reach predetermined even light effect, the material of different light transmittances can be used to carry out
Auxiliary is realized, for example two cambered surfaces of the lens front surface use material of the light transmittance 50%~60%, and both sides use printing opacity
Rate is more than 80% material, so just can guarantee that most of light is projected from lens both sides；The either lens integrally use
Light transmittance is more than 80% material, and one layer of light absorption paint or film are then set in the cambered surface of lens front surface.
The both sides of straight-down negative fabric backplanes are arranged to arc transiting surface by the present invention, and thick middle thin edge is presented in backlight cavity
Form, consumer has the thin effect of vision from product in terms of the side of left and right, coordinates this straight-down negative structure, only vertical with a lamp bar
It is positioned among screen, lamp bar quantity can be reduced, having compared to traditional straight-down negative module reduces material cost, assembling simply just
The advantages that prompt, product cost and form have competitiveness.
Claims (8)
1. a kind of down straight aphototropism mode set structure, including straight-down negative fabric backplanes (1), it is arranged on straight-down negative fabric backplanes (1)
LED lamp bar (2) and reflecting paper (3) on the big face in bottom (11), it is characterized in that：A left side for the straight-down negative fabric backplanes (1)
Right both sides are connected using arc transiting surface (12) with the big face in bottom (11), and the LED lamp bar (2) includes one, and the bottom of along
The vertical central axes in the big face in portion (1) are set, and the reflecting paper (3) is laid on the arc transiting surface of the big face in bottom (11) and both sides
(12) on, LED lamp bar (2) passes through the reflecting paper (3).
2. a kind of down straight aphototropism mode set structure as claimed in claim 1, it is characterized in that：The big face in bottom (11) ensures straight
Light mixing distance H deviations≤1mm among type backlight, the length L in the big face in bottom (11) are not more than whole straight-down negative fabric backplanes
(1) the 30% of length A.
3. a kind of down straight aphototropism mode set structure as claimed in claim 2, it is characterized in that：The straight-down negative fabric backplanes (1)
The globoidal structure that is integrally formed of both sides and the big face in bottom (11).
4. a kind of down straight aphototropism mode set structure as described in claim 1,2 or 3, it is characterized in that：The LED light bar group (2)
Part includes PCB circuit board (21), the LED lamp bead (22) in PCB circuit board (21) and covers in LED lamp bead (22)
Lens (23), for the light that the LED lamp bead (22) sends after lens (23) refraction homogenizes, most of light is left from lens (23)
Right both sides are projected, and small part light is projected from lens (23) front.
5. a kind of down straight aphototropism mode set structure as claimed in claim 4, it is characterized in that：The lens (23) are in intermediate thin two
Thick bow-tie shape is held, lens (23) front is two cambered surfaces, and both sides are horn-type opening, and towards straight-down negative fabric backplanes
(1) center of both sides arc transiting surface (12).
6. a kind of down straight aphototropism mode set structure as claimed in claim 5, it is characterized in that：The lens (23) are in vertical direction
On the strip that is integrated or the structure for being divided into multistage splicing, each of which section lens (23) correspond to 3~4 LED lamp beads
(22)。
7. a kind of down straight aphototropism mode set structure as claimed in claim 5, it is characterized in that：Positive two of the lens (23)
Cambered surface uses material of the light transmittance 50%~60%, and both sides are more than 80% material using light transmittance.
8. a kind of down straight aphototropism mode set structure as claimed in claim 5, it is characterized in that：The lens (23) are integrally using saturating
Light rate is more than 80% material, and one layer of light absorption paint or film are equipped with the cambered surface of lens front surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711159995.6A CN107942581B (en) | 2017-11-20 | 2017-11-20 | Direct type backlight module structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711159995.6A CN107942581B (en) | 2017-11-20 | 2017-11-20 | Direct type backlight module structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107942581A true CN107942581A (en) | 2018-04-20 |
| CN107942581B CN107942581B (en) | 2021-03-16 |
Family
ID=61930460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711159995.6A Active CN107942581B (en) | 2017-11-20 | 2017-11-20 | Direct type backlight module structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107942581B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108870155A (en) * | 2018-07-13 | 2018-11-23 | 安徽芯瑞达科技股份有限公司 | A kind of straight-down negative lamp bar |
| CN109491140A (en) * | 2018-11-30 | 2019-03-19 | 青岛海信电器股份有限公司 | A kind of display device |
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| CN102844609A (en) * | 2010-12-16 | 2012-12-26 | 松下电器产业株式会社 | Backlight device, liquid-crystal display device, and lens |
| CN202972935U (en) * | 2012-12-19 | 2013-06-05 | 冠捷显示科技（厦门）有限公司 | Secondary lens |
| CN103162192A (en) * | 2013-03-18 | 2013-06-19 | 晶科电子（广州）有限公司 | Direct down type backlight module |
| CN203395811U (en) * | 2013-08-02 | 2014-01-15 | 昆山康佳电子有限公司 | Light-emitting diode (LED) lens and backlight module for direct type LED television (TV) |
| CN203595076U (en) * | 2013-10-29 | 2014-05-14 | 刘炜斌 | Lens and lamp with same |
| CN203907479U (en) * | 2014-07-04 | 2014-10-29 | 佛山市中山大学研究院 | LED lens with straight-down type backlight module |
| KR20150034933A (en) * | 2013-09-27 | 2015-04-06 | (주)뉴옵틱스 | Bottom case and backlight assembly having the same |
| CN204405995U (en) * | 2014-09-12 | 2015-06-17 | 康佳集团股份有限公司 | A kind of direct-light type LED backlight module and liquid crystal display |
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| CN105629569A (en) * | 2016-01-11 | 2016-06-01 | 苏州奥浦迪克光电技术有限公司 | CSP (Chip Scale Package) packaged LED (Light-Emitting Diode) light-emitting device |
| KR101652509B1 (en) * | 2015-05-27 | 2016-08-30 | (주)애니캐스팅 | Led lens for back light unit |
| CN106647032A (en) * | 2016-12-30 | 2017-05-10 | 宁波正特光学电器有限公司 | Spreadlight lens and edge-lit backlight module containing spreadlight lens |
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2017
- 2017-11-20 CN CN201711159995.6A patent/CN107942581B/en active Active
Patent Citations (12)
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|---|---|---|---|---|
| CN102844609A (en) * | 2010-12-16 | 2012-12-26 | 松下电器产业株式会社 | Backlight device, liquid-crystal display device, and lens |
| CN202972935U (en) * | 2012-12-19 | 2013-06-05 | 冠捷显示科技（厦门）有限公司 | Secondary lens |
| CN103162192A (en) * | 2013-03-18 | 2013-06-19 | 晶科电子（广州）有限公司 | Direct down type backlight module |
| CN203395811U (en) * | 2013-08-02 | 2014-01-15 | 昆山康佳电子有限公司 | Light-emitting diode (LED) lens and backlight module for direct type LED television (TV) |
| KR20150034933A (en) * | 2013-09-27 | 2015-04-06 | (주)뉴옵틱스 | Bottom case and backlight assembly having the same |
| CN203595076U (en) * | 2013-10-29 | 2014-05-14 | 刘炜斌 | Lens and lamp with same |
| CN203907479U (en) * | 2014-07-04 | 2014-10-29 | 佛山市中山大学研究院 | LED lens with straight-down type backlight module |
| CN204405995U (en) * | 2014-09-12 | 2015-06-17 | 康佳集团股份有限公司 | A kind of direct-light type LED backlight module and liquid crystal display |
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| CN105629569A (en) * | 2016-01-11 | 2016-06-01 | 苏州奥浦迪克光电技术有限公司 | CSP (Chip Scale Package) packaged LED (Light-Emitting Diode) light-emitting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108870155A (en) * | 2018-07-13 | 2018-11-23 | 安徽芯瑞达科技股份有限公司 | A kind of straight-down negative lamp bar |
| CN109491140A (en) * | 2018-11-30 | 2019-03-19 | 青岛海信电器股份有限公司 | A kind of display device |
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| Publication number | Publication date |
|---|---|
| CN107942581B (en) | 2021-03-16 |
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