CN107450233A - A kind of straight-down negative LED liquid crystal television backing structure of low-power consumption - Google Patents
A kind of straight-down negative LED liquid crystal television backing structure of low-power consumption Download PDFInfo
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- CN107450233A CN107450233A CN201710830957.2A CN201710830957A CN107450233A CN 107450233 A CN107450233 A CN 107450233A CN 201710830957 A CN201710830957 A CN 201710830957A CN 107450233 A CN107450233 A CN 107450233A
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- liquid crystal
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- crystal television
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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
- G02F1/133611—Direct backlight including means for improving the brightness uniformity
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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
The invention discloses a kind of straight-down negative LED liquid crystal television backing structure of low-power consumption, including liquid-crystalline glasses, composite membrane, brightening piece, lamp bar, the reflector plate being from top to bottom sequentially arranged, described lamp bar is two and is the U-shaped lamp bar of bending two ends, and V structure diffuser plate is provided between described brightening piece and U-shaped lamp bar；Described reflector plate is W type reflector plates, and described U-shaped lamp bar is arranged in the recess of corresponding reflector plate and extended along recess.It is an object of the invention to provide a kind of brightness uniformity, the straight-down negative LED liquid crystal television backing structure of low-power consumption.
Description
Technical field
The present invention relates to appliance field, the straight-down negative LED liquid crystal television backing structure of particularly a kind of low-power consumption.
Background technology
LED backlight LCD TV is favored because of its energy-conservation, fashion and more preferable video effect by consumers in general,
Most of market of flat panel TV on sale is occupied.Become with progressively maturation, its developing direction of LCD TV manufacturing technology
In green and energy-efficient, and the power consumption of LED backlight liquid crystal TV set height depends primarily on the big of LED backlight power
It is small, therefore how to improve the guide-lighting efficiency of LED backlight LCD TV and then reduce energy consumption just as most people concern
Focus.How main research of the invention improves Straight-down type liquid crystal television LED backlight efficiency, so as to design highlighted LCD TV,
Facility is provided for subsequent design low energy consumption LCD TV.
The content of the invention
It is an object of the invention to provide a kind of brightness uniformity, the straight-down negative LED liquid crystal television backing structure of low-power consumption.
Technical scheme provided by the invention is：A kind of straight-down negative LED liquid crystal television backing structure of low-power consumption, including by upper
Liquid-crystalline glasses, composite membrane, brightening piece, lamp bar, the reflector plate being sequentially arranged under and, described lamp bar are two and are bending two ends
U-shaped lamp bar, V structure diffuser plate is provided between described brightening piece and U-shaped lamp bar；Described reflector plate is W type reflector plates, institute
The U-shaped lamp bar stated is arranged in the recess of corresponding reflector plate and extended along recess.
In the straight-down negative LED liquid crystal television backing structure of above-mentioned low-power consumption, described W types reflector plate and liquid-crystalline glasses
Between be provided with by liquid-crystalline glasses, composite membrane, brightening piece, lamp bar, reflector plate encapsulation side plate.
In the straight-down negative LED liquid crystal television backing structure of above-mentioned low-power consumption, close to the both ends of the recess of W type reflector plates
Two side plates be provided with leaky hole.
In the straight-down negative LED liquid crystal television backing structure of above-mentioned low-power consumption, described W types reflector plate includes connecting successively
First slope face, first level face, the second slope, the 3rd slope, the second horizontal plane and the 4th slope connect, it is described
The cross-section structure of second slope and the 3rd slope forms an inverted v-shaped structure.
In the straight-down negative LED liquid crystal television backing structure of above-mentioned low-power consumption, described first slope face and the 4th oblique
It is domatic to be arranged symmetrically.
In the straight-down negative LED liquid crystal television backing structure of above-mentioned low-power consumption, the size of described liquid-crystalline glasses is 32
Inch, 5 lamp beads are set in each single u-shaped lamp bar and crooked position respectively sets a lamp bead.
In the straight-down negative LED liquid crystal television backing structure of above-mentioned low-power consumption, described lamp bead specification 300mA/3.3V.
In the straight-down negative LED liquid crystal television backing structure of above-mentioned low-power consumption, described V structure diffuser plate includes transparent
Plate body, be provided with multiple inverted v-shaped grooves below described plate body.
In the straight-down negative LED liquid crystal television backing structure of above-mentioned low-power consumption, described brightening piece includes transparent base
Seat, described pedestal are provided with a plurality of prism.
In the straight-down negative LED liquid crystal television backing structure of above-mentioned low-power consumption, described composite membrane is used for for interior be provided with
Make the hyaline membrane of the graininess light penetrating object of light diffusion..
The present invention after adopting the above technical scheme, its have the advantage that for：
The present invention solves following and four angular brightness on display screen by suitably increasing the lamp bar of the U-shaped design between two lamp bars
The problem of low, but because the increase of Y value between two lamp bars necessarily declines intermediate luminance, therefore reflector plate is designed as W by the present invention
Structure, compensate two lamp bars between Y value increase and cause intermediate luminance to decline, realize efficiently, high uniformity；The reflection of W type structures
Piece increases the utilization rate of light because centre adds ridge, while light is converged directionally.This structure not only adds light
Utilization rate, can also increase the optical uniformity of whole TV backlights, while improve the display effect of whole backlight.And utilize optical mode
Intend simulation software Light Tools and analog simulation is carried out to the performance of ordinary construction reflector plate and W structure reflector plates, pass through experiment
The data obtained proves that W structures reflector plate is better than ordinary construction reflector plate effect in terms of uniformity, brightness and ray convergence；
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention 1；
Fig. 2 is the upward view of the embodiment of the present invention 1；
Fig. 3 is the structural representation of the lamp bar of the embodiment of the present invention 1；
Fig. 4 is the structural representation of the V structure diffuser plate of the embodiment of the present invention 1；
Fig. 5 is the structural representation of the brightening piece of the embodiment of the present invention 1.
Embodiment
With reference to embodiment, technical scheme is described in further detail, but not formed pair
Any restrictions of the present invention.
Embodiment 1
As Fig. 1-5 shows, a kind of straight-down negative LED liquid crystal television backing structure of low-power consumption, including be from top to bottom sequentially arranged
Liquid-crystalline glasses 1, composite membrane 2, brightening piece 3, lamp bar 4, reflector plate 5, described lamp bar 4 is two and be the U-shaped of bending two ends
Lamp bar 4, V structure diffuser plate 6 is provided between described brightening piece 3 and U-shaped lamp bar 4；Described reflector plate 5 is W types reflector plate 5,
Described U-shaped lamp bar 4 is arranged in the recess of corresponding reflector plate 5 and extended along recess.
Its principle is, uneven first of all for the edge-lit for the vertical bar LED light bar 4 for overcoming traditional backing structure
Problem, setting LED light bar 4 are U-shape structure, and it can show the intensity of illumination being more uniformly distributed at edge.Meanwhile improving side
It while edge intensity of illumination, should also try every possible means to reduce the intensity of illumination in center, so could effectively make intensity of illumination balanced.
Therefore it is provided with W types reflector plate 5.
In the present embodiment, W types reflector plate 5 is not the W font architectures for the standard that is strictly defined as, and it is recessed containing two
Portion and the general designation of a protuberance.
Specific in the present embodiment, in order to reach more preferable light portfolio effect, the structure of its W types reflector plate 5 is to include
The first slope face 51 that is sequentially connected, first level face 52, the second slope 53, the 3rd slope 54, the and of the second horizontal plane 55
The cross-section structure of 4th slope 56, the second described slope 53 and the 3rd slope 54 forms an inverted v-shaped structure, described
The slope 56 of first slope face 51 and the 4th be arranged symmetrically.
In the present embodiment, between described W types reflector plate 5 and liquid-crystalline glasses 1 be provided with by liquid-crystalline glasses 1, composite membrane 2,
The side plate 9 that brightening piece 3, lamp bar 4, reflector plate 5 encapsulate, two side plates 9 close to the both ends of the recess of W types reflector plate 5 are provided with
Leaky hole 7, the size of described liquid-crystalline glasses 1 is 32 inches, and 5 lamp beads 8 and crooked position are set in each single u-shaped lamp bar 4
One lamp bead 8, the described specification 300mA/3.3V of lamp bead 8 are respectively set.
In the present embodiment, described V structure diffuser plate 6 includes transparent plate body 61, and the described lower section of plate body 61 is provided with
Multiple inverted v-shaped grooves 62, described brightening piece 3 include transparent pedestal 31, and described pedestal 31 is provided with a plurality of upper end as point
The prism 32 at end, length direction extension of the prism 32 along brightening piece 3, that is, the bearing of trend of prism, inverted v-shaped groove 62 prolong
Stretch direction, W types reflector plate 5 groove bearing of trend it is consistent.Described composite membrane 2 is provided with for being used for spreading light to be interior
The hyaline membrane of granular light penetrating object, the light received can be diffused, be atomized, light is propagated to liquid crystal display positive direction,
Play a part of widening visual angle.
The straight-down negative LED liquid crystal television backlight of 32 inches of low-power consumption of the present invention passes through two energy-efficient U-shaped LEDs
Bar 4, W structures reflector plate 5, V structure diffuser plate 6 and 2 blooming pieces realize being uniformly distributed for light.Specifically, it is first
First according to LED lighting angles and the size of light mixing distance, design usage quantity minimum (10) and display effect is good
The U-shaped lamp bar 4 of efficient LED, lamp bead 8 specification 300mA/3.3V, single 8 power Ps of lamp bead=0.3A*3.3V=0.99W, general power P
=0.99*10=9.9W；And lamp bar 4 is designed to U-shape structure (such as Fig. 1)；In general common lamp bar 4 and conventional reflector piece
It is low to be easiest to occur brightness for following and four angles on the display screen of 5 straight-down negative LED liquid crystal television backlight, so as to influence brightness with
Brightness uniformity；The present invention by suitably increase the lamp bar 4 of Y value between two lamp bars 4 and U-shaped design solve it is following on display screen and
The problem of four angular brightness are low, but because the increase of two 4 Y values of lamp bar necessarily declines intermediate luminance, therefore the present invention will be anti-
Penetrate piece 5 and be designed as W structures, compensate the increase of two 4 Y values of lamp bar and cause intermediate luminance to decline, realize efficient, high uniformity；W
The reflector plate 5 of type structure increases the utilization rate of light, while light is converged directionally because centre adds ridge.This knot
Structure not only adds the utilization rate of light, can also increase the optical uniformity of whole TV backlights, while improves the display effect of whole backlight
Fruit.W structures reflector plate 5 is the blast principle using prism, have devised a kind of W structures reflector plate 5, and imitate using optical analog
True software Light Tools carry out analog simulation to the performance of ordinary construction reflector plate 5 and W structures reflector plate 5, by testing
Total is it is demonstrated that W structures reflector plate 5 is better than the effect of ordinary construction reflector plate 5 in terms of uniformity, brightness and ray convergence；
V structure diffuser plate 6 is equally the blast principle using prism, and diffuser plate have devised into a kind of V slot structures, this
Light that lamp bead 8 is sent can be carried out multiple reflections by the diffuser plate of V-structure, light is concentrated to prismatic lens and liquid-crystalline glasses 1
Direction is propagated, and the efficiency of light is improved, so as to reach the effect of " blast ".It may be referred to Fig. 4, and it illustrates V structure diffuser plate 6
Schematic diagram, its inverted v-shaped groove is extended along the length direction i.e. length direction of W types reflector plate of V structure diffuser plate 6, profit
The multiple reflections used up, refraction, light is tried one's best and propagated to the direction of liquid crystal display, to improve the utilization ratio of light.
The principle such as Fig. 5 that adds lustre to of brightening piece, it is mainly reflected some light, and by some light at ± 70 °
In the range of reflect, reduce light loss, by the transform angle set of light, make its in particular directions briliancy increase, by light at certain angle
The effect of optically focused in degree, scattered light is concentrated and projected within the specific limits, improves the range of light brightness.In Fig. 5, lead to
Crossing prism can make light reflectivity reach 50%；The light in the range of ± 70 ° is set to strengthen 30-70% by the refraction of prism,
Light loss shown in dotted line significantly reduces.
V structure diffuser plate 6 is reached by enhancing reflection of the W types reflector plate to light and overall uniform sexual reflex, light, so
Multiple reflections, the refraction of light are carried out by V structure diffuser plate 6 afterwards, light is tried one's best and is propagated to the direction of liquid crystal display, finally by
Brightening piece increases the briliancy in the angle of liquid-crystalline glasses scope, improves spotlight effect, integrally shows the feelings in low-power consumption
The effect of backlight enhancing under condition.
Then several diaphragm frameworks possible in theory have been gone out by Reference Design of the simulation result of various blooming pieces, and have led to
The method for crossing experiment obtains the luminance gain and subjective effect of various diaphragm frameworks, and giving brightness finally by comparative analysis increases
Benefit and all preferable diaphragm framework (brightening piece 3 and composite membrane 2) of view effect.Therefore, it is this anti-by U-shaped LED light bar 4, W structures
Penetrate piece 5,32 inches of direct-light type LED backlight module designs that V structure diffuser plate 6 and blooming piece are formed really possess it is " low
Power consumption ", and the LED liquid crystal television with this design of backlight module is also just into the environmental protection and energy saving TV of low-power consumption.
Above-described embodiment is the preferable embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any Spirit Essences without departing from the present invention with made under principle change, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (10)
1. a kind of straight-down negative LED liquid crystal television backing structure of low-power consumption, including the liquid-crystalline glasses, multiple being from top to bottom sequentially arranged
Close film, brightening piece, lamp bar, reflector plate, it is characterised in that：Described lamp bar is two and is the U-shaped lamp bar of bending two ends, described
Brightening piece and U-shaped lamp bar between be provided with V structure diffuser plate；Described reflector plate is W type reflector plates, and described U-shaped lamp bar is divided
Extend corresponding to not being arranged in the recess of reflector plate and along recess.
2. the straight-down negative LED liquid crystal television backing structure of low-power consumption according to claim 1, it is characterised in that：Described W
The side plate for encapsulating liquid-crystalline glasses, composite membrane, brightening piece, lamp bar, reflector plate is provided between type reflector plate and liquid-crystalline glasses.
3. the straight-down negative LED liquid crystal television backing structure of low-power consumption according to claim 2, it is characterised in that：Close to W types
Two side plates at the both ends of the recess of reflector plate are provided with leaky hole.
4. the straight-down negative LED liquid crystal television backing structure of low-power consumption according to claim 1, it is characterised in that：Described W
Type reflector plate include be sequentially connected first slope face, first level face, the second slope, the 3rd slope, the second horizontal plane
With the 4th slope, the cross-section structure of the second described slope and the 3rd slope forms an inverted v-shaped structure.
5. the straight-down negative LED liquid crystal television backing structure of low-power consumption according to claim 4, it is characterised in that：Described
First slope face and the 4th slope are arranged symmetrically.
6. according to the straight-down negative LED liquid crystal television backing structure of any described low-power consumption of claim 1-5, it is characterised in that：
The size of described liquid-crystalline glasses is 32 inches, and 5 lamp beads are set in each single u-shaped lamp bar and crooked position respectively sets a lamp
Pearl.
7. the straight-down negative LED liquid crystal television backing structure of low-power consumption according to claim 6, it is characterised in that：Described
Lamp bead specification 300mA/3.3V.
8. according to the straight-down negative LED liquid crystal television backing structure of any described low-power consumption of claim 1-5, it is characterised in that：
Described V structure diffuser plate includes transparent plate body, and multiple inverted v-shaped grooves are provided with below described plate body.
9. according to the straight-down negative LED liquid crystal television backing structure of any described low-power consumption of claim 1-5, it is characterised in that：
Described brightening piece includes transparent pedestal, and described pedestal is provided with a plurality of prism.
10. according to the straight-down negative LED liquid crystal television backing structure of any described low-power consumption of claim 1-5, it is characterised in that：
Described composite membrane is the interior hyaline membrane for being provided with the graininess light penetrating object for being used for spreading light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710830957.2A CN107450233A (en) | 2017-09-15 | 2017-09-15 | A kind of straight-down negative LED liquid crystal television backing structure of low-power consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710830957.2A CN107450233A (en) | 2017-09-15 | 2017-09-15 | A kind of straight-down negative LED liquid crystal television backing structure of low-power consumption |
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| Publication Number | Publication Date |
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| CN107450233A true CN107450233A (en) | 2017-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710830957.2A Pending CN107450233A (en) | 2017-09-15 | 2017-09-15 | A kind of straight-down negative LED liquid crystal television backing structure of low-power consumption |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0695112A (en) * | 1992-09-16 | 1994-04-08 | Hitachi Ltd | Prism plate and information display device formed by using this plate |
| CN2586979Y (en) * | 2002-11-29 | 2003-11-19 | 鸿富锦精密工业（深圳）有限公司 | Liquid crystal display module |
| US20040109105A1 (en) * | 2002-11-29 | 2004-06-10 | Alps Electric Co., Ltd. | Backlight unit and liquid crystal display device |
| CN101373042A (en) * | 2008-06-22 | 2009-02-25 | 青岛海信电器股份有限公司 | LED backlight module unit and television set having the same |
| CN203442723U (en) * | 2013-08-26 | 2014-02-19 | 合肥京东方光电科技有限公司 | Back plate, backlight module with back plate and display device with back plate |
| CN203671404U (en) * | 2014-01-27 | 2014-06-25 | 青岛海信电器股份有限公司 | Direct lighting backlight module and display device |
| CN204422927U (en) * | 2015-02-06 | 2015-06-24 | 广东朝野科技有限公司 | A kind of energy-saving TV backlight module |
| CN107340648A (en) * | 2017-09-07 | 2017-11-10 | 京东方科技集团股份有限公司 | Back board structure, backlight module, the preparation method of display device and back board structure |
-
2017
- 2017-09-15 CN CN201710830957.2A patent/CN107450233A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0695112A (en) * | 1992-09-16 | 1994-04-08 | Hitachi Ltd | Prism plate and information display device formed by using this plate |
| CN2586979Y (en) * | 2002-11-29 | 2003-11-19 | 鸿富锦精密工业（深圳）有限公司 | Liquid crystal display module |
| US20040109105A1 (en) * | 2002-11-29 | 2004-06-10 | Alps Electric Co., Ltd. | Backlight unit and liquid crystal display device |
| CN101373042A (en) * | 2008-06-22 | 2009-02-25 | 青岛海信电器股份有限公司 | LED backlight module unit and television set having the same |
| CN203442723U (en) * | 2013-08-26 | 2014-02-19 | 合肥京东方光电科技有限公司 | Back plate, backlight module with back plate and display device with back plate |
| CN203671404U (en) * | 2014-01-27 | 2014-06-25 | 青岛海信电器股份有限公司 | Direct lighting backlight module and display device |
| CN204422927U (en) * | 2015-02-06 | 2015-06-24 | 广东朝野科技有限公司 | A kind of energy-saving TV backlight module |
| CN107340648A (en) * | 2017-09-07 | 2017-11-10 | 京东方科技集团股份有限公司 | Back board structure, backlight module, the preparation method of display device and back board structure |
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Application publication date: 20171208 |
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