CN102566113A - Liquid crystal display with low-temperature heating compensating function and temperature uniformity compensating function - Google Patents
Liquid crystal display with low-temperature heating compensating function and temperature uniformity compensating function Download PDFInfo
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- CN102566113A CN102566113A CN2011104174507A CN201110417450A CN102566113A CN 102566113 A CN102566113 A CN 102566113A CN 2011104174507 A CN2011104174507 A CN 2011104174507A CN 201110417450 A CN201110417450 A CN 201110417450A CN 102566113 A CN102566113 A CN 102566113A
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Abstract
The invention relates to a liquid crystal display with a low-temperature heating compensating function and a temperature uniformity compensating function. The liquid crystal display comprises a shell, a front screen component, an optical backlight system and a circuit control module, wherein the front screen component comprises a heating layer with a low-temperature heating function; a low-temperature heating temperature uniformity compensating part is arranged at the periphery of the front screen component; and two ends of the low-temperature heating temperature uniformity compensating part and the two ends of the heating layer are all connected with the circuit control module. The liquid crystal display provided by the invention has the advantages that the liquid crystal display has dual functions of low-temperature heating compensating and temperature uniformity compensating; the heating layer is used for ensuring that screen central temperature and display effect of a reinforced liquid crystal display screen in a low-temperature working state meet the use demand; the temperature uniformity compensating part is mainly used for increasing the peripheral temperature of the reinforced liquid crystal display screen; while the temperature uniformity and the display effect of a low-temperature working screen of the liquid crystal display are increased, the low-temperature working energy loss caused by the excessive heating for a middle area of a conventional liquid crystal display is avoided; and the total power consumption is reduced.
Description
Technical field
What the present invention relates to is a kind of LCD with low-temperature heat compensation and temperature homogeneity compensate function.Belong to the LCD Technology field.
Background technology
The available liquid crystal display, owing to receive the restriction of liquid crystal material performance, its low-temperature working characteristic is poor.Generally under sub-zero low temperature environment, the available liquid crystal display, with the reduction of temperature, that the liquid crystal material coefficient of viscosity becomes is big, threshold voltage becomes big, occur that response speed is obviously slack-off, degradation phenomenon under the contrast; Even, (as below-40 ℃) at a lower temperature, general LCD can because of liquid crystal material freeze lose normal Presentation Function fully, can not satisfy actual request for utilization.Therefore, the LCD that under low temperature environment, uses need carry out ruggedization under lower temperature, and its conventional method is to adopt nesa coating that liquid crystal layer is added thermal compensation, improves its liquid crystal layer temperature, thereby reaches normal display effect.This conventional LCD (as shown in Figure 1) that adds thermal compensation that adopted at low temperatures is made up of shell body, preceding screen assembly, optical back photosystem and circuit control module etc.Wherein, Be provided with zone of heating before and after the liquid crystal display of preceding screen assembly; This zone of heating can be that (like Fig. 2, Fig. 3, shown in Figure 4) is arranged on before and after the liquid crystal display; Having comprised transparency carrier as shown in Figure 9 and be produced on the nesa coating on the transparency carrier, also can be directly to be produced on nesa coating on the front-back baseboard of liquid crystal display or to be produced on to have on electromagnetic screen and the window glass that resists anti-anti-reflection function.Circuit control module wherein can be through detecting sampling liquid crystal display temperature to controller, again by controller according to the liquid crystal display temperature just; Control the heating power of zone of heating; LCDs before making in the screen assembly down can operate as normal at low temperature (30 ℃, even-45 ℃ ,-55 ℃).The employing of this routine the used zone of heating of LCD of low-temperature heat compensation; Side's resistance of its transparency conducting layer (like ITO); Generally all even relatively; Thereby with uniform heat, LCDs (like the patent No. being: ZL00220228.X, the utility model patent of ZL97231825.9) is given in compensation in the low-temperature heat process.Yet preceding screen assembly transmits the heat that distributes to the space and can have bigger difference through metal shell with directly through preceding screen window glass.This difference causes under the low-temperature working state, and there is the very big temperature difference in the liquid crystal display screen surfaces in preceding screen assembly.Although prior art has adopted the measure of putting the heat-barrier material insulation between preceding screen assembly and metal shell; To reduce the above-mentioned temperature difference; But this temperature difference still can reach tens degree; The panel lip temperature that shows as liquid crystal display under the low-temperature heat compensating coefficient is low, and medium temperature is high, and periphery (especially four jiaos) response speed is obviously slow than the centre; When showing black, blackout in the middle of the LCDs in the preceding screen assembly, but the edge especially four jiaos can turn white or turn blue, poor contrast has obviously aberration.Therefore; The employing of this routine the LCD of low-temperature heat compensation; Under the low-temperature working state, when the middle display effect of LCDs reaches request for utilization, because of its peripheral actual temperature maybe be far below the centre; Can not reach request for utilization far away thereby peripheral response speed and contrast occur, the very poor bad duty of whole screen display effect.Be to improve the lip temperature of LCDs, the solution of this conventional LCD, exactly total improve heating power, its consequence be before must causing in the screen assembly temperature of LCDs zone line rise sooner than the temperature of fringe region.Obviously, this large tracts of land heats up and offers the heat of preceding screen assembly (comprising LCDs) zone line, is a kind of extra energy dissipation.Therefore; Thisly put in order the conventional LCD that screen evenly adds thermal compensation; In low-temperature working formed before the panel non-uniform temperature of LCDs in the screen assembly, not only can have a strong impact on the display quality and the practical effect of LCD, also can cause extra power consumption.
Summary of the invention
What the present invention proposed is a kind of LCD with low-temperature heat compensation and temperature homogeneity compensate function; Its purpose is intended to overcome the above-mentioned defective of existing in prior technology; Not only have the low-temperature heat compensate function, and have the temperature homogeneity compensate function, can improve the panel temperature homogeneity of LCD when low-temperature heat; Improve the low temperature display effect, practice thrift total power consumption.
Technical solution of the present invention: comprise shell body, preceding screen assembly, optical back photosystem, circuit control module; Wherein the optical back photosystem is in shell body; Preceding screen assembly is on the optical back photosystem; Optical back photosystem below is the circuit control module, it is characterized in that having comprised the zone of heating with low-temperature heat function in the described preceding screen assembly; The periphery of preceding screen assembly also has a low-temperature heat temperature homogeneity compensating part, and two ends of low-temperature heat temperature homogeneity compensating part and two ends of zone of heating all join with the circuit control module.
Advantage of the present invention: have low-temperature heat temperature compensation and temperature homogeneity compensation dual-use function; Its zone of heating can make the panel central temperature and the display effect of the reinforcing LCDs of low-temperature working state reach request for utilization; And temperature homogeneity compensating part 5 is mainly used in the peripheral temperature that improves the reinforcing LCDs; Thereby when improving LCD low-temperature working panel temperature homogeneity and display effect; The low-temperature working energy loss of avoiding conventional LCD that the display zone line is excessively heated up and causes is practiced thrift total power consumption.
Description of drawings
Fig. 1 is conventional liquid crystal display device structure synoptic diagram;
Fig. 2 is the rearmounted preceding screen assembly synoptic diagram of zone of heating;
Fig. 3 is the preposition preceding screen assembly synoptic diagram of zone of heating;
Fig. 4 is the preceding screen assembly synoptic diagram of the double-deck zone of heating of front and rear;
Fig. 5 is a low-temperature heat temperature homogeneity compensating part synoptic diagram;
Fig. 6 is a kind of low-temperature heat temperature homogeneity compensating part position view;
Fig. 7 is a kind of low-temperature heat temperature homogeneity compensating part position view;
Fig. 8 is a kind of low-temperature heat temperature homogeneity compensating part position view;
Fig. 9 is a kind of zone of heating and low-temperature heat temperature homogeneity compensating part and extension line synoptic diagram;
Figure 10 is a kind of low-temperature heat temperature homogeneity compensating part synoptic diagram.
Embodiment
Map 2, the upper surface of LCDs 20 is preceding screen window glass 21 in the preceding screen assembly, the lower surface of LCDs 20 is zones of heating 22 in the preceding screen assembly.
Map 6,7, the upper and lower surface of zone of heating 22 are respectively low-temperature heat temperature homogeneity compensating parts 5.
Map 8 is equipped with optical back photosystem 3 in the shell body 1, the top of optical back photosystem 3 is preceding screen assemblies 2, and the below of optical back photosystem 3 is circuit control modules 4; The bonding low-temperature heat temperature homogeneity of the side compensating part 5 of preceding screen assembly 2.
Map 9, the zone of heating of preceding screen assembly comprise a glass substrate 220, transparency conducting layer 221 and the BUS electrode 222 made on the glass substrate 220, and two ends of wherein low-temperature heat temperature homogeneity compensating part 5 and BUS electrode 222 are connection circuit control module 4 respectively.
Contrast accompanying drawing 10, its structure is that the extension line 501 of low-temperature heat temperature homogeneity compensating part is connected with the circuit control module respectively with the extension line of zone of heating, tinsel electric conductor 50 adopts 51 insulation of silicone insulation layer up and down, and bonding with zone of heating.The resistance of tinsel electric conductor 50 is 2 to 10 times of zone of heating resistance.
Described circuit control module 4 detects sampling liquid crystal display temperature through temperature sensor and delivers to controller, again by controller according to the liquid crystal display temperature just, controls the heating power of zone of heating.
Have the zone of heating 22 of preceding screen assembly 2 of the LCD of low-temperature heat temperature homogeneity compensate function,, comprise a glass substrate 220, transparency conducting layer 221 and the BUS electrode 222 made on the glass substrate 220 like Fig. 9.The tinsel electric conductor 50 of low-temperature heat temperature homogeneity compensating part 5 is to be wound on zone of heating 22 peripheries with nickel-copper wire by figure shown in figure 10.Tinsel electric conductor 50 adopts 51 insulation of silicone insulation layer up and down, and bonding with zone of heating 22.The extension line 501 of low-temperature heat temperature homogeneity compensating part 5 all is connected with circuit control module 4 respectively with the extension line 2221 of zone of heating 22, and its heating power has constituted embodiments of the invention 1 by control module 4 independent controls.
Embodiment 2
After the extension line 501 of the low-temperature heat temperature homogeneity compensating part 5 in the foregoing description and the extension line of zone of heating 22 2221 are parallelly connected; Be connected with circuit control module 4; Wherein the resistance of tinsel electric conductor 50 is 2 to 10 times of zone of heating 22 resistances, has constituted embodiments of the invention 2.
Like the electric conductor 50 of the low-temperature heat temperature homogeneity compensating part 5 among Figure 10, be extended into linearity after, the side of screen assembly before bonding to heat-conducting glue has constituted embodiments of the invention 3.
Claims (9)
1. LCD with low-temperature heat compensation and temperature homogeneity compensate function; Comprise shell body (1), preceding screen assembly (2), optical back photosystem (3), circuit control module (4); Wherein optical back photosystem (3) is in shell body (1); Preceding screen assembly (2) is on optical back photosystem (3); Optical back photosystem (3) below is circuit control module (4), it is characterized in that having comprised the zone of heating (22) with low-temperature heat function in the described preceding screen assembly (2); The periphery of preceding screen assembly (2) also has a low-temperature heat temperature homogeneity compensating part (5).
2. a kind of LCD according to claim 1 with low-temperature heat compensation and temperature homogeneity compensate function; It is characterized in that two ends of above-mentioned low-temperature heat temperature homogeneity compensating part (5) and two ends of zone of heating (22) are connected in parallel, and the resistance of low-temperature heat temperature homogeneity compensating part (5) is 2～10 times of zone of heating (22) resistance.
3. a kind of LCD with low-temperature heat compensation and temperature homogeneity compensate function according to claim 1 is characterized in that the low-temperature heat temperature homogeneity compensating part (5) of preceding screen assembly (2) periphery is connected with control module (4) with zone of heating (22) series connection back.
4. a kind of LCD according to claim 1 with low-temperature heat compensation and temperature homogeneity compensate function; Two ends that it is characterized in that the low-temperature heat temperature homogeneity compensating part (5) of preceding screen assembly (2) periphery; And two ends of zone of heating (22); Be connected with circuit control module (4) respectively, its low-temperature heat power is respectively by circuit control module (4) control separately.
5. a kind of have low-temperature heat compensation and temperature homogeneity compensation merit according to claim 1
The LCD of ability is characterized in that above-mentioned low-temperature heat temperature homogeneity compensating part (5) is arranged on the upper and lower surface of zone of heating (22) periphery, also can be set directly on the front-back baseboard glass surface of LCDs (20).
6. a kind of LCD according to claim 1 with low-temperature heat compensation and temperature homogeneity compensate function; It is characterized in that shielding between the upper surface and shell body (1) of window glass (21) periphery before above-mentioned low-temperature heat temperature homogeneity compensating part (5) is arranged on, also can be arranged between preceding screen assembly (2) side and the shell body (1).
7. a kind of LCD according to claim 1 with low-temperature heat compensation and temperature homogeneity compensate function; The above-mentioned low-temperature heat temperature homogeneity compensating part (5) that it is characterized in that preceding screen assembly (2) periphery is the electric conductor (50) through insulation course (51) protection.
8. a kind of LCD according to claim 7 with low-temperature heat compensation and temperature homogeneity compensate function; It is characterized in that above-mentioned electric conductor (50) through insulation course (51) protection is a kind of METAL HEATING PROCESS silk; Described METAL HEATING PROCESS silk is a kind of nickel-copper wire; But be not limited to nickel-copper wire, above-mentioned insulation course (51) is a kind of silica gel, but is not limited to silica gel.
9. a kind of LCD according to claim 8 with low-temperature heat compensation and temperature homogeneity compensate function; It is characterized in that the METAL HEATING PROCESS silk is the method that adopts bending or repeat coiling back and forth, formed curve or the broken line near (2) four jiaos of preceding screen assemblies, concentrated relatively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104174507A CN102566113A (en) | 2011-12-14 | 2011-12-14 | Liquid crystal display with low-temperature heating compensating function and temperature uniformity compensating function |
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| CN2011104174507A CN102566113A (en) | 2011-12-14 | 2011-12-14 | Liquid crystal display with low-temperature heating compensating function and temperature uniformity compensating function |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879936A (en) * | 2012-10-15 | 2013-01-16 | 中航华东光电有限公司 | Uniform heating device applied to liquid crystal display and liquid crystal display |
| CN102879933A (en) * | 2012-10-15 | 2013-01-16 | 中航华东光电有限公司 | Heater as well as shaped liquid crystal display with same and heating method thereof |
| CN103605230A (en) * | 2013-12-04 | 2014-02-26 | 中航华东光电有限公司 | Liquid crystal screen component with temperature compensation and heating function and liquid crystal display |
| CN103974472A (en) * | 2013-02-01 | 2014-08-06 | 研祥智能科技股份有限公司 | Heating film and heating device |
| CN105892126A (en) * | 2016-06-15 | 2016-08-24 | 山东超越数控电子有限公司 | Reinforced liquid crystal display low-temperature heating method |
| CN106183972A (en) * | 2016-06-29 | 2016-12-07 | 四川莱源科技有限公司 | Slotted waveguide antenna for radar monitoring |
| CN107402459A (en) * | 2017-05-31 | 2017-11-28 | 中国电子科技集团公司第五十五研究所 | A kind of method and structure for eliminating LCD MODULE condensation/solidifying frost |
| CN109491118A (en) * | 2018-10-12 | 2019-03-19 | 中航华东光电有限公司 | The uniformly heated LCD MODULE of low temperature |
| CN109885195A (en) * | 2018-11-28 | 2019-06-14 | 中国电子科技集团公司第五十五研究所 | A kind of touch control display system and its low-temperature heat temperature-compensation method |
| CN112089562A (en) * | 2020-09-23 | 2020-12-18 | 郑州迪生仪器仪表有限公司 | Temperature calibration and measurement method for infant incubator |
| CN112783227A (en) * | 2020-12-30 | 2021-05-11 | 盐城工学院 | Electrical assembly system with temperature compensation piece |
| CN115167024A (en) * | 2022-07-01 | 2022-10-11 | Tcl华星光电技术有限公司 | Liquid crystal display device and temperature control method thereof |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879933B (en) * | 2012-10-15 | 2016-08-10 | 中航华东光电有限公司 | Heater, the special-shaped liquid crystal display with this heater and heating means thereof |
| CN102879933A (en) * | 2012-10-15 | 2013-01-16 | 中航华东光电有限公司 | Heater as well as shaped liquid crystal display with same and heating method thereof |
| CN102879936A (en) * | 2012-10-15 | 2013-01-16 | 中航华东光电有限公司 | Uniform heating device applied to liquid crystal display and liquid crystal display |
| CN103974472B (en) * | 2013-02-01 | 2017-08-15 | 研祥智能科技股份有限公司 | A kind of heating film and heater |
| CN103974472A (en) * | 2013-02-01 | 2014-08-06 | 研祥智能科技股份有限公司 | Heating film and heating device |
| CN103605230B (en) * | 2013-12-04 | 2016-08-31 | 中航华东光电有限公司 | There is liquid crystal screen component and the liquid crystal display of temperature-compensating heating function |
| CN103605230A (en) * | 2013-12-04 | 2014-02-26 | 中航华东光电有限公司 | Liquid crystal screen component with temperature compensation and heating function and liquid crystal display |
| CN105892126A (en) * | 2016-06-15 | 2016-08-24 | 山东超越数控电子有限公司 | Reinforced liquid crystal display low-temperature heating method |
| CN106183972A (en) * | 2016-06-29 | 2016-12-07 | 四川莱源科技有限公司 | Slotted waveguide antenna for radar monitoring |
| CN107402459A (en) * | 2017-05-31 | 2017-11-28 | 中国电子科技集团公司第五十五研究所 | A kind of method and structure for eliminating LCD MODULE condensation/solidifying frost |
| CN109491118A (en) * | 2018-10-12 | 2019-03-19 | 中航华东光电有限公司 | The uniformly heated LCD MODULE of low temperature |
| CN109885195A (en) * | 2018-11-28 | 2019-06-14 | 中国电子科技集团公司第五十五研究所 | A kind of touch control display system and its low-temperature heat temperature-compensation method |
| CN112089562A (en) * | 2020-09-23 | 2020-12-18 | 郑州迪生仪器仪表有限公司 | Temperature calibration and measurement method for infant incubator |
| CN112783227A (en) * | 2020-12-30 | 2021-05-11 | 盐城工学院 | Electrical assembly system with temperature compensation piece |
| CN112783227B (en) * | 2020-12-30 | 2022-02-08 | 盐城工学院 | Electrical assembly system with temperature compensation piece |
| CN115167024A (en) * | 2022-07-01 | 2022-10-11 | Tcl华星光电技术有限公司 | Liquid crystal display device and temperature control method thereof |
| CN115167024B (en) * | 2022-07-01 | 2023-10-17 | Tcl华星光电技术有限公司 | Liquid crystal display device and temperature control method thereof |
| US11906836B2 (en) | 2022-07-01 | 2024-02-20 | Tcl China Star Optoelectronics Technology Co., Ltd. | Liquid crystal display device and temperature control method thereof |
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Application publication date: 20120711 |