CN108681148A - A kind of LED backlight and LED display - Google Patents
A kind of LED backlight and LED display Download PDFInfo
- Publication number
- CN108681148A CN108681148A CN201810402582.4A CN201810402582A CN108681148A CN 108681148 A CN108681148 A CN 108681148A CN 201810402582 A CN201810402582 A CN 201810402582A CN 108681148 A CN108681148 A CN 108681148A
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- China
- Prior art keywords
- led
- led unit
- backlight
- base plate
- flexible base
- 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.)
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—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
- G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
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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)
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a kind of LED backlight and LED display, the LED backlight includes：First flexible base plate, parallel connection are integrally disposed in the identical LED unit of multiple areas on first flexible base plate, and the control module for independently controlling each LED unit brightness change is electrically connected with the LED unit；The LED light that each LED unit is uniformly arranged by more is in series.The present invention constitutes backlight by the way that the identical LED unit parallel connection of multiple areas to be integrally disposed on flexible base plate, keep each LED unit uniformly in series by plurality of LEDs lamp, and each LED unit brightness change is independently controlled by control module, so as to easily carry out backlight regional area brightness regulation, energy saving enhances the endurance of battery, and the setting of flexible base plate, it can significantly be bent so that screen is conveniently designed to abnormity.
Description
Technical field
The present invention relates to backlight technology field more particularly to a kind of LED backlight and the displays of the LED including the backlight fill
It sets.
Background technology
The backlight of mobile phone mainly uses side type LED backlight technology at present, by light source, light guide plate, and optical diaphragm, and
The compositions such as plastic frame.Principle is the interference phenomenon that light guide plate destroys light using the network point distribution at guide-lighting acrylic board bottom, by LED points
Light source is uniformly converted into area source, by guiding the scattering direction of light, makes the distribution of light more uniform.It is shown in Figure 1, side
Side formula LED backlight technology is that LED light 100 is simply connected and is connected in parallel, and finally draws backlight anode and cathode, control
Mainboard cannot control the luminance switch of one of them or certain several LED.The back of the body is integrally presently mainly controlled by PWM technologies
The brightness of light.But the scale and fineness that side backlight technology restriction back light source brightness region is adjusted at present.Mesh simultaneously
Since light guide plate is made of plastic cement, outline border is made front side edge formula LED backlight technology of iron frame, not flexible, if any bending, then can
Cause backlight uneven, and if by screen configuration design at abnormity, difficulty is larger.
Therefore, the existing technology needs to be improved and developed.
Invention content
In view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of LED backlight and LED display dresses
It sets, to overcome existing LED backlight to be inconvenient to carry out, regional luminance adjusting and outline border be not flexible and the more difficult design of screen
At the problem of abnormity.
Technical scheme is as follows：
The present invention provides a kind of LED backlight, wherein including：First flexible base plate, parallel connection are integrally disposed in described first
The identical LED unit of multiple areas on flexible base plate, and be electrically connected with the LED unit each for independently controlling
The control module of LED unit brightness change；The LED light that each LED unit is uniformly arranged by more is in series.
The LED backlight, wherein the LED backlight further includes the optical film being arranged on the LED unit top
Piece.
The LED backlight, wherein the control module includes the second software substrate, and is arranged soft second
Local dimming control IC on substrate and peripheral circuit.
The LED backlight, wherein the LED light is full-color RGB mixed lights lamp bead or white light lamp bead.
The LED backlight, wherein the LED light is blue-ray LED collocation fluorescent powder.
The LED backlight, wherein the thickness of the LED light is 0.15mm~0.3mm.
The LED backlight, wherein each LED unit is in series by 4 LED lamps.
The present invention also provides a kind of LED displays, wherein includes the LED backlight as described in any of the above item.
The LED display, wherein the LED display further includes being successively set on the LED from bottom to up
First reflecting piece, liquid crystal display panel, second reflecting piece on unit top.
Another kind LED display provided by the invention, wherein including：First flexible base plate, parallel connection are integrally disposed in institute
The identical LED unit of multiple areas on the first flexible base plate is stated, is electrically connected with LED unit each for independently controlling
The control module of LED unit brightness change, and it is successively set on the optical diaphragm on LED unit top, first from bottom to up instead
Mating plate, liquid crystal display panel, the second reflecting piece；The control module includes the second software substrate, and is arranged described second
Local dimming control IC on flexible base plate and peripheral circuit；The LED light string that each LED unit is uniformly arranged by more
Connection is constituted；The thickness of the LED light is 0.15mm~0.3mm.
The beneficial effects of the invention are as follows：The present invention provides a kind of LED backlight and LED display, the present invention passes through
The identical LED unit parallel connection of multiple areas is integrally disposed on flexible base plate and constitutes backlight, makes each LED unit by more
LED lamp is uniformly in series, and each LED unit brightness change is independently controlled by control module, so as to side
Just carry out backlight regional area brightness regulation, energy saving enhance the endurance of battery, and the setting of flexible base plate, can
To be significantly bent so that screen is conveniently designed to abnormity.
Description of the drawings
Fig. 1 is the structural schematic diagram of side light type LED backlight source in the prior art.
Fig. 2 is the structural schematic diagram of the LED display of the embodiment of the present invention.
Fig. 3 is the partial structural diagram of the LED backlight of the embodiment of the present invention.
Fig. 4 is the structural schematic diagram of the LED backlight of the embodiment of the present invention.
Fig. 5 is another partial structural diagram of the LED backlight of the embodiment of the present invention.
Fig. 6 is the structural schematic diagram of the control module of the embodiment of the present invention.
Fig. 7 is backlight Close All status diagram of the present invention.
Fig. 8 is backlight local dimming status diagram of the present invention.
Fig. 9 is displaying information on screen status diagram of the present invention.
Specific implementation mode
A kind of LED backlight of present invention offer and LED display, to make the purpose of the present invention, technical solution and effect
Clearer, clear, the present invention is described in more detail for the embodiment that develops simultaneously referring to the drawings.It should be appreciated that this place is retouched
The specific embodiment stated is only used to explain the present invention, is not intended to limit the present invention.
A kind of LED backlight provided in an embodiment of the present invention, as shown in Figures 2 to 5, including：First flexible base plate (FPC
Substrate) 1, the identical LED unit 2 of multiple areas that is integrally disposed on first flexible base plate 1 of parallel connection, and with it is described
Control module 9 of the electrical connection of LED unit 2 for independently controlling 2 brightness change of each LED unit；Each LED unit
2 is in series by the more LED light being uniformly arranged 21.
Further, in the present embodiment, as shown in Figures 3 to 5, what each LED unit was uniformly arranged by 4
LED light is in series.In other embodiments, the LED unit can also be in series by the LED light of other quantity, such as 6
It is a, 8 etc..The LED light is preferably the Mini LED that thickness is 0.15mm~0.3mm.The LED unit and the first soft base
Plate constitutes Mini LED integration modules.The present invention is arranged in pairs or groups using LED on the first flexible base plate, can be significantly bent, simultaneously
Light guide plate can be saved, will not because of bending and backlight is uneven, shape is more lightening.
Further, in the present embodiment, as shown in figure 3, the LED backlight further includes being arranged in the LED unit 2
The optical diaphragm (optical film) 3 in portion.The LED light can be full-color RGB mixed lights lamp bead or white light lamp bead, or
Blue-ray LED collocation fluorescent powder.Using full-color RGB mixed lights or white light, 100%NTSC high colour gamuts can be reached and shown, and penetrated
The LED of blue-ray LED collocation fluorescent powder, then can reach the display effect of 80~90%NTSC.The present invention can by arrangement above
Promote LCD high contrasts and high colour gamut display effect.
Further, in the present embodiment, as shown in fig. 6, the control module 9 includes the second flexible base plate 91, Yi Jishe
Set local dimming control IC (chip) 92 and peripheral circuit (peripheral electron element) on the second flexible base plate (FPC substrates) 91
93.The order that local dimming control IC receiving hosts end is started, then decodes, regenerates corresponding drive waveforms,
Control the working condition of the LED light of each LED unit.The peripheral circuit provides power supply, filters out the clutter in signal, allows part
Brightness adjustment control IC the operation is stable.
Entire backlight area is divided into several identical areas's (except irregular shaped region) of area by the embodiment of the present invention, each
4 LED lamps are corresponded in area, this 4 LED lamp, which is first connected, to be connected together, and then positive and negative anodes are connected in control module.The present invention
LED display can individually control the light on and off and brightness in each backlight area, due to using direct-type backlight, can pass through
Local dimming designs the effect screen for reaching high dynamic, finer screen-picture is presented, while can also save backlight electricity consumption.
The present invention constitutes backlight by the way that the identical LED unit parallel connection of multiple areas to be integrally disposed on flexible base plate,
Keep each LED unit uniformly in series by plurality of LEDs lamp, and independently controls each LED unit by control module
Brightness change, so as to easily carry out backlight regional area brightness regulation, energy saving enhances the endurance of battery, and
And the setting of flexible base plate, it can significantly be bent so that screen is conveniently designed to abnormity, for example, can both be designed to such as Fig. 5
Shown in rectangular screen, can also be designed to concave screen as described in Figure 4.
Further, the embodiment of the present invention also provides a kind of LED display, together referring to shown in Fig. 2 to Fig. 4, including：
First flexible base plate (FPC substrates) 1, the identical LED of multiple areas that parallel connection is integrally disposed on first flexible base plate 1 are mono-
Member 2 is electrically connected the control module 9 for independently controlling 2 brightness change of each LED unit with the LED unit 2, and
Be successively set on from bottom to up 2 top of the LED unit the 3, first reflecting piece (POL) 4 of optical diaphragm (optical film),
The 5, second reflecting piece 6 of liquid crystal display panel (LCD Panel)；The control module 9 includes the second flexible base plate 91, and setting
Local dimming control IC (chip) 92 on the second flexible base plate (FPC substrates) 91 and peripheral circuit (peripheral electron element)
93；Each LED unit 2 is in series by the more LED light being uniformly arranged 21；The thickness of the LED light is 0.15mm
~0.3mm.
Further, in the present embodiment, first flexible base plate 1, LED unit 2, optical diaphragm 3, control module 9 one
It rises and constitutes LED backlight, first reflecting piece (POL) 4, the 5, second reflecting piece 6 of liquid crystal display panel (LCD Panel) are together
Liquid crystal module (LCD) is constituted, LED backlight and liquid crystal module constitute LED display (LCD display modules, LCM) together.This
Invention is designed using local dimming, can promote scales and fineness of the LCD on HDR subregions, at the same also can energy saving,
Enhance the endurance of battery.
Further, in the present embodiment, the LED backlight device can be mobile phone, tablet computer, TV etc..It is described
First polaroid and the second polaroid include various polarisation diaphragms or the gain films such as AR polaroids, LR polaroids, 1/4 λ polaroids.
Shown in Figure 2, LED light is integrated on the first flexible base plate by the present invention, and takes optical diaphragm, and controlled control module will have
The backlight of effect projects on liquid crystal display panel.
Further, the present invention in specific application, such as when display device be LCD display, referring to Fig. 7 to Fig. 9 institutes
Show, first, host driven LCD display shows the time 12 on top:00, if backlight Close All at this time, on the screen
It can't see any information (Fig. 7)；Secondly, host opens backlight local dimming function, the LED light of opening time display area
(Fig. 8)；Finally, it is seen that real image (Fig. 9).
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations should all belong to the guarantor of appended claims of the present invention
Protect range.
Claims (10)
1. a kind of LED backlight, which is characterized in that including：First flexible base plate, parallel connection are integrally disposed in the described first soft base
The identical LED unit of multiple areas on plate, and be electrically connected with the LED unit mono- for independently controlling each LED
The control module of first brightness change；The LED light that each LED unit is uniformly arranged by more is in series.
2. LED backlight according to claim 1, which is characterized in that the LED backlight further includes being arranged described
The optical diaphragm on LED unit top.
3. LED backlight according to claim 1, which is characterized in that the control module includes the second software substrate, with
And the local dimming control IC and peripheral circuit being arranged on the second flexible base plate.
4. LED backlight according to claim 1, which is characterized in that the LED light is for full-color RGB mixed lights lamp bead or in vain
Light lamp bead.
5. LED backlight according to claim 1, which is characterized in that the LED light is blue-ray LED collocation fluorescent powder.
6. LED backlight according to claim 1, which is characterized in that the thickness of the LED light is 0.15mm~0.3mm.
7. LED backlight according to claim 1, which is characterized in that each LED unit is connected by 4 LED lamps
It constitutes.
8. a kind of LED display, which is characterized in that including such as claim 1~7 any one of them LED backlight.
9. LED display according to claim 8, which is characterized in that the LED display further includes from bottom to up
It is successively set on the first reflecting piece, liquid crystal display panel, second reflecting piece on the LED unit top.
10. a kind of LED display, which is characterized in that including：First flexible base plate, it is soft that parallel connection is integrally disposed in described first
Property substrate on the identical LED unit of multiple areas, be electrically connected with LED unit for independently to control each LED unit bright
The control module of variation is spent, and is successively set on the optical diaphragm on LED unit top, the first reflecting piece, liquid crystal from bottom to up
Display panel, the second reflecting piece；The control module includes the second software substrate, and is arranged on second flexible base plate
Local dimming control IC and peripheral circuit；The LED light that each LED unit is uniformly arranged by more is in series；Institute
The thickness for stating LED light is 0.15mm~0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810402582.4A CN108681148A (en) | 2018-04-28 | 2018-04-28 | A kind of LED backlight and LED display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810402582.4A CN108681148A (en) | 2018-04-28 | 2018-04-28 | A kind of LED backlight and LED display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108681148A true CN108681148A (en) | 2018-10-19 |
Family
ID=63801886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810402582.4A Pending CN108681148A (en) | 2018-04-28 | 2018-04-28 | A kind of LED backlight and LED display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108681148A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109239979A (en) * | 2018-11-23 | 2019-01-18 | 深圳市国显科技有限公司 | A kind of Mini LED direct-type backlight LCM liquid crystal display die set and brightness control method |
| CN111103726A (en) * | 2018-10-29 | 2020-05-05 | 北京小米移动软件有限公司 | Backlight, display device and backlight control method |
| CN115016156A (en) * | 2022-06-28 | 2022-09-06 | 昆山龙腾光电股份有限公司 | Display device with switchable wide and narrow viewing angles and driving method |
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| CN101196650A (en) * | 2006-12-06 | 2008-06-11 | 三星电子株式会社 | Backlight assembly and display device having the same |
| CN202093785U (en) * | 2011-04-27 | 2011-12-28 | 海尔集团公司 | LCD display equipment using LED backlight |
| CN102537753A (en) * | 2010-12-09 | 2012-07-04 | 鸿富锦精密工业（深圳）有限公司 | Backlight diaphragm as well as manufacturing method and molding equipment thereof |
| CN102798016A (en) * | 2012-08-10 | 2012-11-28 | 京东方科技集团股份有限公司 | Backlight unit, backlight source, backlight source control method and display device |
| CN208207456U (en) * | 2018-04-28 | 2018-12-07 | 珠海晨新科技有限公司 | A kind of LED backlight and LED display |
-
2018
- 2018-04-28 CN CN201810402582.4A patent/CN108681148A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101196650A (en) * | 2006-12-06 | 2008-06-11 | 三星电子株式会社 | Backlight assembly and display device having the same |
| CN102537753A (en) * | 2010-12-09 | 2012-07-04 | 鸿富锦精密工业（深圳）有限公司 | Backlight diaphragm as well as manufacturing method and molding equipment thereof |
| CN202093785U (en) * | 2011-04-27 | 2011-12-28 | 海尔集团公司 | LCD display equipment using LED backlight |
| CN102798016A (en) * | 2012-08-10 | 2012-11-28 | 京东方科技集团股份有限公司 | Backlight unit, backlight source, backlight source control method and display device |
| CN208207456U (en) * | 2018-04-28 | 2018-12-07 | 珠海晨新科技有限公司 | A kind of LED backlight and LED display |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111103726A (en) * | 2018-10-29 | 2020-05-05 | 北京小米移动软件有限公司 | Backlight, display device and backlight control method |
| CN111103726B (en) * | 2018-10-29 | 2022-03-18 | 北京小米移动软件有限公司 | Backlight, display device and backlight control method |
| CN109239979A (en) * | 2018-11-23 | 2019-01-18 | 深圳市国显科技有限公司 | A kind of Mini LED direct-type backlight LCM liquid crystal display die set and brightness control method |
| CN115016156A (en) * | 2022-06-28 | 2022-09-06 | 昆山龙腾光电股份有限公司 | Display device with switchable wide and narrow viewing angles and driving method |
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