CN105717704A - Two-sided display screen and LED light bar thereof - Google Patents
Two-sided display screen and LED light bar thereof Download PDFInfo
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- CN105717704A CN105717704A CN201610258065.5A CN201610258065A CN105717704A CN 105717704 A CN105717704 A CN 105717704A CN 201610258065 A CN201610258065 A CN 201610258065A CN 105717704 A CN105717704 A CN 105717704A
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- Prior art keywords
- led
- display screen
- quantum dot
- circuit substrate
- sided display
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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
-
- 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
-
- 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)
- Planar Illumination Modules (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Led Device Packages (AREA)
Abstract
The invention provides an LED light bar for a two-sided display screen. The LED light bar comprises a circuit board, two groups of LED lights and a protective part, wherein two groups of LED lights are arranged on the circuit board, and the protective part is arranged on the circuit board and used for preventing two groups of LED lights from collision by a light guide plate during assembling. According to the LED light bar for the two-sided display screen, the temperature of the light incident end of a QD (Quantum Dot) fluorescent membrane can be reduced, and the blue edge phenomenon can be effectively improved.
Description
Technical field
The present invention relates to technical field of liquid crystal display, specifically refer to a kind of two-sided display screen and LED lamp bar thereof.
Background technology
Display with double faces refers to a kind of novel display device with two display screens, being applied to various Counter service and window more and more widely with its appearance rectified and remarkable performance, the business hall such as service trades such as communications industry, government's window, financial industry, transportation industries uses.
Referring to Fig. 1, Fig. 1 is the structural representation of a kind of two-sided display screen in prior art.
As shown in Figure 1, current two-sided display screen 100 simply simple two liquid crystal module are arranged in pairs or groups mutually, the liquid crystal module more independent than two saves a metal backing 60, and other parts are 10, two liquid crystal display screens of two LED lamp bar, 30, two light guide plates 40 of 20, two groups of bloomings and two reflecting plates 50 respectively.
In order to optimize the structure of display with double faces further, quantum dot (QuantumDot can be used, it is called for short QD) technology, but QD fluorescent film and QD glass tubing are expensive at present, in order to reduce the use of QD fluorescent film in display with double faces, have employed optimization design architecture as shown in Figure 2, QD fluorescent film 70 is arranged at middle.
Then QD fluorescent material temperature quenching phenomenon is serious, and along with temperature raises, its luminous efficiency declines rapidly.QD fluorescent film 70 is arranged between two pieces of light guide plates 40, owing to there is the inefficacy district of about 1mm QD fluorescent film 70 marginal portion, and the light inputting end portion of energy of QD fluorescent film 70 is high, temperature is high, the failed areas causing QD fluorescent film 70 light inputting end part can increase along with the growth of the time of use, thus causing that blue limit phenomenon occurs.
Summary of the invention
The present invention provides a kind of two-sided display screen and LED lamp bar thereof, to solve the technical problem that in prior art, QD fluorescent film light inputting end portion temperature is high.
For solving above-mentioned technical problem, the technical scheme that the present invention adopts is: providing a kind of LED lamp bar for two-sided display screen, described LED lamp bar includes:
Circuit substrate；
Two groups of LED, are located on described circuit substrate；And
Guard member, is located on described circuit substrate, for protecting described two groups of LED not collided by light guide plate when assembling.
According to one preferred embodiment of the present invention, described guard member is the multiple block pieces being located on described circuit substrate, and described block piece is in bulk, and interval is located between described LED, and the thickness of described block piece is more than the thickness of described LED.
According to one preferred embodiment of the present invention, described circuit substrate is further provided with quantum dot diaphragm draw-in groove, and described quantum dot diaphragm draw-in groove is arranged between described two groups of LED, and described quantum dot diaphragm draw-in groove is for housing the side of quantum dot diaphragm.
According to one preferred embodiment of the present invention, described block piece is metal or rigid plastics.
According to one preferred embodiment of the present invention, the degree of depth of described quantum dot diaphragm draw-in groove is 0.8～3mm.
Another technical solution used in the present invention is: providing a kind of two-sided display screen, described two-sided display screen includes:
Quantum dot diaphragm；
Light guide plate, is arranged on two lateral surface of described quantum dot diaphragm；
Blooming, is arranged on two lateral surface of described light guide plate；
Liquid crystal display screen, is arranged on two lateral surface of described blooming；And
Above-mentioned LED lamp bar, is arranged on the side of described light guide plate；
Wherein, described LED lamp bar includes:
Circuit substrate；
Two groups of LED, are located on described circuit substrate；And
Guard member, is located on described circuit substrate, for protecting described two groups of LED not collided by described light guide plate when assembling.
The invention has the beneficial effects as follows: be different from the situation of prior art, two-sided display screen provided by the invention and LED lamp bar thereof are owing to being provided with the quantum dot diaphragm draw-in groove housing quantum dot diaphragm, the temperature of QD fluorescent film light inputting end part can be reduced, thus being effectively improved blue limit phenomenon.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in the embodiment of the present invention, below the accompanying drawing used required during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the structural representation of a kind of two-sided display screen in prior art；
Fig. 2 is the structural representation of another kind of two-sided display screen in prior art；
Fig. 3 is a preferred embodiment structural representation of a kind of LED lamp bar for two-sided display screen of the present invention；
Fig. 4 is another preferred embodiment structural representation of a kind of LED lamp bar for two-sided display screen of the present invention；
Fig. 5 is another preferred embodiment structural representation of a kind of LED lamp bar for two-sided display screen of the present invention；
Fig. 6 is the structural representation of two-sided display screen one preferred embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
As it is shown on figure 3, a preferred embodiment of Fig. 3 a kind of LED lamp bar for two-sided display screen that is the present invention, the present invention provides a kind of LED lamp bar 10 for two-sided display screen, and this LED lamp bar 10 includes 11, two groups of LED 12 of circuit substrate and guard member 13.
Wherein, circuit substrate 11 is in elongated rectangular shape shape, and circuit substrate 11 is preferably aluminium base, and its radiating effect is excellent；Two groups of LED 12 are located on circuit substrate 11；Guard member 13 is located on circuit substrate 11, for protecting two groups of LED 12 by light guide plate 40 (see Fig. 6) collision when assembling.
Referring to Fig. 4 and Fig. 5, wherein, a group in two groups of LED 12 in the present invention can be the row's LED 12 shown in Fig. 3, or one group can be the double LED 12 shown in Fig. 4 and Fig. 5.
Preferably, guard member 13 is the multiple block pieces 13 being located on circuit substrate 11, and block piece 13 is in bulk, and interval is located between LED 12, and the thickness of block piece 13 is more than the thickness of LED 12.
Wherein, block piece 13 can be and LED 12 alternate intervals, it is also possible to is and two LED 12 alternate intervals, it is also possible to is arrange with three LED 12 alternate intervals.Block piece 13 can be metal or rigid plastics.
Further, circuit substrate 11 is further provided with quantum dot diaphragm draw-in groove 14, and quantum dot diaphragm draw-in groove 14 is arranged between two groups of LED 12, and quantum dot diaphragm draw-in groove 14 is for housing the side of quantum dot diaphragm 70.
In embodiments of the present invention, the degree of depth of quantum dot diaphragm draw-in groove 14 can be 0.8～3mm, it is preferred to more than 1mm.
Can consulting Fig. 2 and Fig. 6 in the lump, the present invention provides a kind of two-sided display screen 200, and this two-sided display screen 200 includes quantum dot diaphragm, light guide plate, blooming, liquid crystal display screen and above-mentioned LED lamp bar 10.
Wherein, light guide plate is arranged on two lateral surface of quantum dot diaphragm；Blooming is arranged on two lateral surface of light guide plate；Liquid crystal display screen is arranged on two lateral surface of blooming；LED lamp bar 10 is arranged on the side of light guide plate.
Wherein, the structure of LED lamp bar 10 is referring to mentioned above, and it is no longer repeated herein.
In sum, it should be readily apparent to one skilled in the art that two-sided display screen provided by the invention and LED lamp bar thereof are owing to being provided with the quantum dot diaphragm draw-in groove housing quantum dot diaphragm, it is possible to reduce the temperature of QD fluorescent film light inputting end part, thus being effectively improved blue limit phenomenon.
These are only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the present invention and accompanying drawing content to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all in like manner include in the scope of patent protection of the present invention.
Claims (10)
1. the LED lamp bar for two-sided display screen, it is characterised in that described LED lamp bar includes:
Circuit substrate；
Two groups of LED, are located on described circuit substrate；And
Guard member, is located on described circuit substrate, for protecting described two groups of LED not collided by light guide plate when assembling.
2. LED lamp bar according to claim 1, it is characterised in that described guard member is the multiple block pieces being located on described circuit substrate, described block piece is in bulk, and interval is located between described LED, and the thickness of described block piece is more than the thickness of described LED.
3. LED lamp bar according to claim 1, it is characterized in that, described circuit substrate is further provided with quantum dot diaphragm draw-in groove, and described quantum dot diaphragm draw-in groove is arranged between described two groups of LED, and described quantum dot diaphragm draw-in groove is for housing the side of quantum dot diaphragm.
4. LED lamp bar according to claim 2, it is characterised in that described block piece is metal or rigid plastics.
5. LED lamp bar according to claim 3, it is characterised in that the degree of depth of described quantum dot diaphragm draw-in groove is 0.8～3mm.
6. a two-sided display screen, it is characterised in that described two-sided display screen includes:
Quantum dot diaphragm；
Light guide plate, is arranged on two lateral surface of described quantum dot diaphragm；
Blooming, is arranged on two lateral surface of described light guide plate；
Liquid crystal display screen, is arranged on two lateral surface of described blooming；And
LED lamp bar, is arranged on the side of described light guide plate；
Wherein, described LED lamp bar includes:
Circuit substrate；
Two groups of LED, are located on described circuit substrate；And
Guard member, is located on described circuit substrate, for protecting described two groups of LED not collided by described light guide plate when assembling.
7. two-sided display screen according to claim 6; it is characterized in that, described guard member is the multiple block pieces being located on described circuit substrate, and described block piece is in bulk; interval is located between described LED, and the thickness of described block piece is more than the thickness of described LED.
8. two-sided display screen according to claim 6, it is characterized in that, described circuit substrate is further provided with quantum dot diaphragm draw-in groove, and described quantum dot diaphragm draw-in groove is arranged between described two groups of LED, and described quantum dot diaphragm draw-in groove is for housing the side of quantum dot diaphragm.
9. two-sided display screen according to claim 7, it is characterised in that described block piece is metal or rigid plastics.
10. two-sided display screen according to claim 8, it is characterised in that the degree of depth of described quantum dot diaphragm draw-in groove is 0.8～3mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610258065.5A CN105717704B (en) | 2016-04-22 | 2016-04-22 | A kind of two-sided display screen and its LED light bar |
| PCT/CN2016/082303 WO2017181461A1 (en) | 2016-04-22 | 2016-05-17 | Double-sided display screen and led strip thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610258065.5A CN105717704B (en) | 2016-04-22 | 2016-04-22 | A kind of two-sided display screen and its LED light bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105717704A true CN105717704A (en) | 2016-06-29 |
| CN105717704B CN105717704B (en) | 2018-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610258065.5A Active CN105717704B (en) | 2016-04-22 | 2016-04-22 | A kind of two-sided display screen and its LED light bar |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105717704B (en) |
| WO (1) | WO2017181461A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106773322A (en) * | 2017-02-22 | 2017-05-31 | 深圳市华星光电技术有限公司 | Backlight module and double side liquid crystal display |
| CN108732815A (en) * | 2018-05-02 | 2018-11-02 | 惠州市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| US10746916B2 (en) | 2018-05-02 | 2020-08-18 | Huizhou China Star Optoelectronics Technology Co., Ltd. | Backlight module and LCD device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101059606A (en) * | 2006-04-19 | 2007-10-24 | 群康科技(深圳)有限公司 | Double-faced liquid crystal display |
| CN101303470A (en) * | 2007-05-09 | 2008-11-12 | 奇美电子股份有限公司 | Display apparatus of two-sided screen |
| KR20130024152A (en) * | 2011-08-30 | 2013-03-08 | 엘지이노텍 주식회사 | Light unit and display device |
| CN203731293U (en) * | 2014-01-10 | 2014-07-23 | 广州奥翼电子科技有限公司 | Light guide plate, front-light illuminating device and electronic paper display screen |
| CN104808386A (en) * | 2015-04-28 | 2015-07-29 | 武汉华星光电技术有限公司 | Light source unit, backlight module and a liquid crystal display |
| CN105044984A (en) * | 2015-08-21 | 2015-11-11 | 深圳市华星光电技术有限公司 | Liquid crystal display device and backlight module thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101158781A (en) * | 2007-11-12 | 2008-04-09 | 杨忠义 | Double face LCD |
-
2016
- 2016-04-22 CN CN201610258065.5A patent/CN105717704B/en active Active
- 2016-05-17 WO PCT/CN2016/082303 patent/WO2017181461A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101059606A (en) * | 2006-04-19 | 2007-10-24 | 群康科技(深圳)有限公司 | Double-faced liquid crystal display |
| CN101303470A (en) * | 2007-05-09 | 2008-11-12 | 奇美电子股份有限公司 | Display apparatus of two-sided screen |
| KR20130024152A (en) * | 2011-08-30 | 2013-03-08 | 엘지이노텍 주식회사 | Light unit and display device |
| CN203731293U (en) * | 2014-01-10 | 2014-07-23 | 广州奥翼电子科技有限公司 | Light guide plate, front-light illuminating device and electronic paper display screen |
| CN104808386A (en) * | 2015-04-28 | 2015-07-29 | 武汉华星光电技术有限公司 | Light source unit, backlight module and a liquid crystal display |
| CN105044984A (en) * | 2015-08-21 | 2015-11-11 | 深圳市华星光电技术有限公司 | Liquid crystal display device and backlight module thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106773322A (en) * | 2017-02-22 | 2017-05-31 | 深圳市华星光电技术有限公司 | Backlight module and double side liquid crystal display |
| CN106773322B (en) * | 2017-02-22 | 2020-09-08 | 深圳市华星光电技术有限公司 | Backlight module and double-sided liquid crystal display |
| CN108732815A (en) * | 2018-05-02 | 2018-11-02 | 惠州市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| US10746916B2 (en) | 2018-05-02 | 2020-08-18 | Huizhou China Star Optoelectronics Technology Co., Ltd. | Backlight module and LCD device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105717704B (en) | 2018-10-23 |
| WO2017181461A1 (en) | 2017-10-26 |
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