CN102621741A - Liquid crystal display device - Google Patents
Liquid crystal display device Download PDFInfo
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- CN102621741A CN102621741A CN2012101041279A CN201210104127A CN102621741A CN 102621741 A CN102621741 A CN 102621741A CN 2012101041279 A CN2012101041279 A CN 2012101041279A CN 201210104127 A CN201210104127 A CN 201210104127A CN 102621741 A CN102621741 A CN 102621741A
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- liquid crystal
- crystal display
- crystal panel
- backlight
- module backlight
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Abstract
The invention provides a liquid crystal display device, which comprises a backlight module, a first liquid crystal display panel, a second liquid crystal display panel and a printed circuit board, wherein the backlight module comprises a light guiding plate and a plurality of optical films, backlights of the liquid crystal display device are provided by means of the light guiding plate and the optical films, the first liquid crystal display panel is arranged on one side of the backlight module, the second liquid crystal display panel is opposite to the first liquid crystal display panel and is disposed on the other side of the backlight module, and the printed circuit board is arranged on the backlight module, electrically connected with the first liquid crystal display panel and the second liquid crystal display panel and used for providing a control signal so that the liquid crystal display device can perform double-sided display by means of the first liquid crystal display panel and the second liquid crystal display panel. By means of the liquid crystal display device, two liquid crystal display panel are arranged on two opposite sides of the backlight module respectively, and the control signal is provided by means of the printed circuit board for the first liquid crystal display panel and the second liquid crystal display panel, thereby the function of double-sided display of the liquid crystal display device is achieved.
Description
Technical field
The present invention relates to lcd technology, relate in particular to a kind of liquid crystal display with double-sided display function.
Background technology
Current, the LCD backlight technology of main flow comprises two types of LED (Light Emitting Diode, light emitting diode) and CCFL (Cold Cathode Fluorescent Lamp, cold-cathode fluorescence lamp) on the market.Like what we knew, liquid crystal itself is not luminous, can only produce change color, needs backlight just can see content displayed.For example, traditional notebook screen uses CCFL as backlight mostly, and the light emitting diode that adopt the LED-backlit fluorescent screen, White LED is pointolite, and CCFL is the strip light source.
To the CCFL backlight, its principle of work is: after high voltage is added in lamp tube ends, produce secondary behind the minority electrons high-speed impact electrode in the fluorescent tube; Begin discharge; After mercury in the pipe or inert gas received electron impact, exciting radiation went out the ultraviolet light of 253.7nm, and the ultraviolet excitation of generation is coated in the fluorescent powder on the inside pipe wall and produces visible light; It is with low cost, but color representation is relatively poor.By contrast; Led technology is adopted in the LED-backlit source, and this light emitting diode is processed by several layers of very thin doped semiconductor materials, and one deck has excessive electronics; Another layer then lacks electronics and forms the hole of positively charged; Electric current passes through during work, and electronics and hole mutually combine, and unnecessary energy then is released out with the form of optical radiation.Through using different semiconductor materials can obtain the light emitting diode of the different characteristics of luminescences; For example; The light emitting diode that has dropped at present commercial application can provide red, green, blue, green grass or young crops, orange, amber, color such as white, it is advantageous that thickness is thinner, and colour gamut is very broad.
Yet no matter liquid crystal display of the prior art is straight-down negative or the side-light type when adopting the CCFL backlight; Straight-down negative when still adopting the LED-backlit source or side-light type; To module backlight, the structure style is similar basically from liquid crystal module, and thickness also has been reduced to intimate ultimate attainment.In view of this, how designing a kind of liquid crystal display of double-sided display type, on the basis that existing single face shows, dwindle thickness as much as possible, reduce cost, and solve the heat dissipation problem of inside configuration, is a problem needing to be resolved hurrily of person skilled in the industry.
Summary of the invention
To liquid crystal display of the prior art existing above-mentioned defective when researching and developing double-sided display function, the invention provides a kind of liquid crystal display of novelty.
According to one aspect of the present invention, a kind of liquid crystal display is provided, comprising:
One module backlight comprises a LGP and a plurality of blooming, and the backlight of liquid crystal display is provided by said LGP and said blooming;
One first liquid crystal panel is arranged at a side of said module backlight;
One second liquid crystal panel, relative with said first liquid crystal panel, be arranged at the opposite side of said module backlight; And
One printed circuit board (PCB); Be installed on said module backlight; And be electrically connected to said first liquid crystal panel and said second liquid crystal panel, in order to a control signal to be provided, make said liquid crystal display carry out double-sided display by said first liquid crystal panel and second liquid crystal panel.
Preferably, this liquid crystal display also comprises a heat dissipation base, and its upper surface comprises a junction, and said module backlight, said first liquid crystal panel and said second liquid crystal panel are fixed in said heat dissipation base by said connecting portion.Further, the lower surface of this heat dissipation base is a groove structure.
Preferably, this liquid crystal display also comprises a plurality of holders, in order to said first liquid crystal panel and said second liquid crystal panel are gripped to said heat dissipation base.Further, this holder lays respectively at four corners of said module backlight, in order to fixing whole liquid crystal display.
Preferably, this holder is an elastomeric material.
Preferably, this holder is a L type structure, at two vertical component effects of said L type structure the two parallel slit is set all, and a slit wherein is used to plug said first liquid crystal panel, and another slit is used to plug said second liquid crystal panel.Further, have a pars intermedia between two slits, said pars intermedia is against the blooming of said module backlight.
Preferably, be provided with the site on two surfaces of this LGP, in order to strengthen two-sided leaded light ability.
Adopt liquid crystal display of the present invention; Two liquid crystal panels are separately positioned on the relative both sides of module backlight; And provide one to control signal to first liquid crystal panel and second liquid crystal panel simultaneously, thereby make this liquid crystal display realize double-sided display function by printed circuit board (PCB).In addition, the also configurable heat dissipation base of this liquid crystal display fix this first liquid crystal panel and this second liquid crystal panel by the connecting portion of its upper surface, and dispels the heat in the LED-backlit source that can be convenient in the module backlight.
Description of drawings
The reader with reference to advantages after the embodiment of the present invention, will become apparent various aspects of the present invention.Wherein,
Fig. 1 illustrates the exploded view according to the liquid crystal display of an embodiment of the present invention;
Fig. 2 illustrates the exploded view of the liquid crystal display of Fig. 1;
Fig. 3 illustrates the upright figure of group of the liquid crystal display of Fig. 1; And
Fig. 4 illustrates the stereographic map of the holder of Fig. 1.
Embodiment
For technology contents that the application is disclosed is more detailed and complete, can be with reference to accompanying drawing and following various specific embodiments of the present invention, identical mark is represented same or analogous assembly in the accompanying drawing.Yet the embodiment that those of ordinary skill in the art should be appreciated that hereinafter to be provided is used for limiting the scope that the present invention is contained.In addition, accompanying drawing only is used for schematically explaining, does not draw according to its life size.
With reference to the accompanying drawings, the embodiment of various aspects of the present invention is done further to describe in detail.
Fig. 1, Fig. 2, Fig. 3 illustrate the liquid crystal display according to an embodiment of the present invention, in the upright figure of decomposition and group of different phase.With reference to Fig. 1, Fig. 2, Fig. 3, this liquid crystal display comprises a module backlight 100, liquid crystal panel 102 and 104 and one printed circuit board (PCB) 103.Wherein, module 100 backlight comprises a LGP 110 and multi-layer optical film 120, and the backlight of liquid crystal display is provided by this LGP 110 and these bloomings 120.It is pointed out that in conventional liquid crystal display apparatus and carry out single face when showing, because the best liquid crystal layer from a direction directive liquid crystal module of backlight, thereby often must dispose a reflection horizon, so that the beam reflection of another direction of directive is returned.Yet; Because in the liquid crystal display of the present invention; The both sides of module 100 backlight are respectively arranged with liquid crystal panel 102 and 104, and the backlight in the module backlight needs from two opposed direction directive liquid crystal panels 102 and 104 liquid crystal layer separately, so need not to be provided with this reflection horizon.
In one embodiment; This liquid crystal display also comprises a heat dissipation base 106; Its upper surface comprises a junction 107, and liquid crystal panel 102 is fixed in heat dissipation base 106 with liquid crystal panel 104 by this connecting portion 107, so that dispelled the heat in LED-backlit source 108.That is to say that this heat dissipation base 106 not only can be used for fixing and supports the liquid crystal panel 102 and 104 and module backlight 100 of its top, but also can be used for being dispelled the heat in LED-backlit source 108.In addition, for improving radiating efficiency, this heat dissipation base 106 can select for use metal material to make, and this heat dissipation base 106 can be set to the range upon range of form of bar shaped heat radiator.And for example, the lower surface of this heat dissipation base 106 can be designed to a groove structure, in order to deposit this printed circuit board (PCB) and/or other electronic component 109, to optimize the outward appearance of this liquid crystal display.
In another specific embodiment, be provided with the site on two surfaces of the LGP 110 in the module 100 backlight, in order to strengthen two-sided leaded light ability.More specifically, the front side surface of the LGP 110 of module 100 backlight is provided with the site, to strengthen the leaded light ability from the light beam of 108 directive front sides, LED-backlit source; The rear side surface of the LGP 110 of module 100 backlight also is provided with the site, to strengthen the leaded light ability from the light beam of LED-backlit source 108 directive rear sides.
This liquid crystal display also comprises a plurality of holders, shown in the figure notation among Fig. 2 21,22,23 and 24.By these holders 21～24 liquid crystal panel 102 is gripped to heat dissipation base 106.Similarly, utilize these holders 21～24 that liquid crystal panel 104 is fixed to heat dissipation base 106.
In one embodiment, above-mentioned holder 21～24 lays respectively at four corners of module 100 backlight, in order to fixing whole liquid crystal display.For example, this holder 21～24 adopts elastomeric material to process.
With reference to Fig. 4, above-mentioned holder 21～24 is a L type structure, at two vertical component effects of this L type structure two parallel slit 25 and 26 is set all, and a slit 25 wherein is used to plug this liquid crystal panel 102, and another slit 26 is used to plug this liquid crystal panel 104.Further, have a pars intermedia 27 between two slits 25 and 26, this pars intermedia 27 is against the blooming 120 of module 100 backlight.
Adopt liquid crystal display of the present invention; Two liquid crystal panels are separately positioned on the relative both sides of module backlight; And provide one to control signal to first liquid crystal panel and second liquid crystal panel simultaneously, thereby make this liquid crystal display realize double-sided display function by printed circuit board (PCB).In addition, the also configurable heat dissipation base of this liquid crystal display fix this first liquid crystal panel and this second liquid crystal panel by the connecting portion of its upper surface, and dispels the heat in the LED-backlit source that can be convenient in the module backlight.
In the preceding text, illustrate and describe embodiment of the present invention.But those skilled in the art can understand, and under situation without departing from the spirit and scope of the present invention, can also specific embodiments of the invention do various changes and replacement.These changes and replacement all drop in claims of the present invention institute restricted portion.
Claims (9)
1. a liquid crystal display is characterized in that, said liquid crystal display comprises:
One module backlight comprises a LGP and a plurality of blooming, and the backlight of liquid crystal display is provided by said LGP and said blooming;
One first liquid crystal panel is arranged at a side of said module backlight;
One second liquid crystal panel, relative with said first liquid crystal panel, be arranged at the opposite side of said module backlight; And
One printed circuit board (PCB); Be installed on said module backlight; And be electrically connected to said first liquid crystal panel and said second liquid crystal panel, in order to a control signal to be provided, make said liquid crystal display carry out double-sided display by said first liquid crystal panel and second liquid crystal panel.
2. liquid crystal display according to claim 1; It is characterized in that; Said liquid crystal display also comprises a heat dissipation base; Its upper surface comprises a junction, and said module backlight, said first liquid crystal panel and said second liquid crystal panel are fixed in said heat dissipation base by said connecting portion.
3. liquid crystal display according to claim 2 is characterized in that, the lower surface of said heat dissipation base is a groove structure.
4. liquid crystal display according to claim 2 is characterized in that said liquid crystal display also comprises a plurality of holders, in order to said first liquid crystal panel and said second liquid crystal panel are gripped to said heat dissipation base.
5. liquid crystal display according to claim 4 is characterized in that, said holder lays respectively at four corners of said module backlight, in order to fixing whole liquid crystal display.
6. liquid crystal display according to claim 5 is characterized in that, said holder is an elastomeric material.
7. liquid crystal display according to claim 5; It is characterized in that; Said holder is a L type structure; Two vertical component effects in said L type structure all are provided with the two parallel slit, and a slit wherein is used to plug said first liquid crystal panel, and another slit is used to plug said second liquid crystal panel.
8. liquid crystal display according to claim 7 is characterized in that, has a pars intermedia between said two slits, and said pars intermedia is against the blooming of said module backlight.
9. liquid crystal display according to claim 1 is characterized in that, is provided with the site on two surfaces of said LGP, in order to strengthen two-sided leaded light ability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101041279A CN102621741A (en) | 2012-04-09 | 2012-04-09 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101041279A CN102621741A (en) | 2012-04-09 | 2012-04-09 | Liquid crystal display device |
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| Publication Number | Publication Date |
|---|---|
| CN102621741A true CN102621741A (en) | 2012-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101041279A Pending CN102621741A (en) | 2012-04-09 | 2012-04-09 | Liquid crystal display device |
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| CN (1) | CN102621741A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104808389A (en) * | 2015-05-18 | 2015-07-29 | 上海启钧电子有限公司 | Integrated double-faced display module structure |
| WO2016172993A1 (en) * | 2015-04-28 | 2016-11-03 | 武汉华星光电技术有限公司 | Display device |
| CN107357071A (en) * | 2017-08-02 | 2017-11-17 | 深圳市华星光电技术有限公司 | A kind of double-sided liquid crystal display device |
| CN110111699A (en) * | 2019-04-25 | 2019-08-09 | 武汉华星光电技术有限公司 | Multifunctional glass |
| CN110161755A (en) * | 2019-06-11 | 2019-08-23 | 江苏毅昌科技有限公司 | A kind of backlight module and liquid crystal display device |
| WO2022198708A1 (en) * | 2021-03-25 | 2022-09-29 | 武汉华星光电技术有限公司 | Display module and display system |
-
2012
- 2012-04-09 CN CN2012101041279A patent/CN102621741A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016172993A1 (en) * | 2015-04-28 | 2016-11-03 | 武汉华星光电技术有限公司 | Display device |
| CN104808389A (en) * | 2015-05-18 | 2015-07-29 | 上海启钧电子有限公司 | Integrated double-faced display module structure |
| CN107357071A (en) * | 2017-08-02 | 2017-11-17 | 深圳市华星光电技术有限公司 | A kind of double-sided liquid crystal display device |
| CN110111699A (en) * | 2019-04-25 | 2019-08-09 | 武汉华星光电技术有限公司 | Multifunctional glass |
| CN110161755A (en) * | 2019-06-11 | 2019-08-23 | 江苏毅昌科技有限公司 | A kind of backlight module and liquid crystal display device |
| WO2022198708A1 (en) * | 2021-03-25 | 2022-09-29 | 武汉华星光电技术有限公司 | Display module and display system |
| US11906886B2 (en) | 2021-03-25 | 2024-02-20 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Display module and display system |
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Application publication date: 20120801 |