CN1661422A - LCD faceplate, heater and fabricating method - Google Patents
LCD faceplate, heater and fabricating method Download PDFInfo
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- CN1661422A CN1661422A CN 200410003171 CN200410003171A CN1661422A CN 1661422 A CN1661422 A CN 1661422A CN 200410003171 CN200410003171 CN 200410003171 CN 200410003171 A CN200410003171 A CN 200410003171A CN 1661422 A CN1661422 A CN 1661422A
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- heater
- conductive film
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- display panels
- sensor
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Abstract
The present invention provides a liquid crystal display panel, including a heater. Said heater is placed at one side of said liquid crystal dislay panel, and has a conductive film and heating circuit. Under the condition of low-temperature environment the respose time of liquid crystal molecules is slowed, the liquid crystal panel can not be operated normally. Under the low temp environment said invention can start the heater, and its heater circuit can make the electric current be passed through the conductive film to heat the liquid crystal display panel and can make it be retained in the operational temp.
Description
Technical field
The invention relates to a kind of display panels,, make display panels under low temperature environment, still can keep normal operation particularly relevant for a kind of display panels with well heater.
Background technology
The double glazing base board unit of display panels for being fitted and formed by two sheet glass base plate alignments, the gap is also left to inject liquid crystal in the centre.In the general processing procedure,, carry out the aligning combination of two sheet glass substrates afterwards at first respectively at carrying out colored filter and thin film transistor (TFT) processing procedure on the two sheet glass substrates.In the anabolic process, and, the thickness of liquid crystal that injects thereafter can be uniformly dispersed by between upper and lower base plate, spilling cloth gap (spacer) to strengthen the gap in the fixing double glazing substrate; Around the panel and form a gasket seal patterns, in order to after sclerosis, the glass substrate of levels is cohered.Then, after liquid crystal injecting port carries out liquid crystal filling and seals, promptly finish the processing procedure of display panels.
Please refer to Fig. 1, Fig. 1 is the sectional view that shows known display panels.Display panels comprises the first Polarizer 11a and the second Polarizer 11b.First substrate 12 and second substrate 13 are set between the first Polarizer 11a and the second Polarizer 11b.Gap (spacer) 14 is set to form the gap between first substrate 12 and second substrate 13, again liquid crystal 15 is injected in the gap.Liquid crystal be a kind of between solid-state and liquid between material, when display panels is being lower than uniform temperature, for example be environment Celsius-20 ℃ when using down, liquid crystal may be transformed into solid-state and can't reverse according to the variation of electric field, causes the display panels can't normal operation.This problem that display panels can't be used because of low temperature environment can solve at the special liquid crystal that low temperature drives by using, but special liquid crystal still has its restriction and cost to improve relatively.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of display panels, in order to heat liquid crystal so that liquid crystal maintains exercisable state with well heater.
According to above-mentioned purpose, the invention provides a kind of display panels with well heater, comprising: one first substrate and one second substrate; One liquid crystal layer is sandwiched between first substrate and second substrate; And a well heater, be arranged at a side of first substrate, well heater has a conductive film and a heater circuit, heater circuit by with a current flowing in conductive film to heat.
Another object of the present invention is to provide a kind of well heater that is applicable to display panels.
According to above-mentioned purpose, the invention provides a kind of well heater, comprising: a substrate, a conductive film and a heater circuit, this conductive film is arranged on the substrate, this heater circuit is arranged on the conductive film, with so that a current flowing in conductive film to heat.
Another purpose of the present invention is to provide a kind of manufacture method that is applicable to the well heater of display panels.
According to above-mentioned purpose, the invention provides a kind of manufacture method of well heater: provide a substrate; On substrate, form a conductive film; One heater circuit is set on conductive film, and heater circuit comprises that at least two heating units are arranged at the conductive film two ends, and two heater circuits couple with a lead, with so that a current flowing conductive film to heat; One sensor is set on display panels, and sensor and heater circuit couple, and sensor is in order to detecting display panels temperature; And a heater switch is set on display panels, heater switch and sensor couple, and start or close heater circuit in order to the temperature according to sensor detecting.
Description of drawings
Fig. 1 is the sectional view that shows known display panels.
Fig. 2 is the sectional view that shows well heater of the present invention.
Fig. 3 is the vertical view of well heater of the present invention.
Fig. 4 is the sectional view of display panels of the present invention.
Fig. 5 is the vertical view of the embodiment of well heater of the present invention.
Symbol description:
11a first Polarizer; 11b～second Polarizer;
12～the first substrates; 13～the second substrates;
14～gap; 15～liquid crystal;
21a～first Polarizer; 21b～second Polarizer;
22～the first substrates; 23～the second substrates;
24～gap; 25～liquid crystal;
26～well heater; 260～substrate;
261～conductive film; 262a, 262b～heater circuit;
263～temperature sensor; 264～heater switch.
Embodiment
For above and other objects of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below:
Below cooperate Fig. 2 and Fig. 3 with explanation the present invention, Fig. 2 is the sectional view that shows well heater of the present invention, and Fig. 3 is the vertical view of well heater of the present invention.
Well heater 26 has a substrate 260, be by having high-penetration degree and can resistant to elevated temperatures material, for example glass, polyethylene terephthalate (PET) or polycarbonate (polycarbonate, PC) etc. made, to avoid substrate 260 that the brightness of display panels is reduced, perhaps cause well heater 26 distortion and damage because of thermotolerance is not good.
Then, use a transparency height and the low conductive material of resistance to come substrate 260 is coated with (coating) or splash (sputtering) step, to form an even and comprehensive conductive film 261 on substrate 260, this conductive film 261 for example is indium tin oxide (ITO) or silver (Ag).If it is too high to be used for forming the resistance of conductive film 261 materials, will causes conductive film 261 to open circuit and produce excessive heat energy and destroy well heater 26 or display panels; In addition, if when the transparency of conductive film is not high, when being applied to penetrate through type liquid crystal display board, also might cause the brightness of display panels to descend.
The two ends of conductive film 261 are provided with a heater circuit, heater circuit includes heating unit 262a and 262b, heating unit 262a and 262b lay respectively at the two ends of conductive film 261, in order to electric conduction of heating film 261, wherein couple with a lead between heating unit 262a and 262b, and have a potential difference (PD).After heating unit 262a and 262b startup, conductive film 261 resistance own can pass through to produce heat energy because of electric current, simultaneously, because the resistance of heating unit 262a and 262b itself is practically negligible, and conductive film 261 is the causes that are formed on the substrate 260 even and comprehensively, and the heat energy of the every bit on the conductive film 261 will level off to unanimity.
Below please refer to Fig. 4, Fig. 4 is the sectional view with display panels of well heater of the present invention.
Display panels includes the first Polarizer 21a and the second Polarizer 21b.First substrate 22 and second substrate 23 are set between the first Polarizer 21a and the second Polarizer 21b.Gap (spacer) 24 is set to form the gap between first substrate 22 and second substrate 23, again liquid crystal 25 is injected in the gap.Between first substrate 22 and the first Polarizer 21a well heater 26 is set, well heater 26 can both start under the fixed temperature or cut out one, keeps liquid crystal at exercisable state.Well heater 26 also can be arranged between second substrate 23 and the second Polarizer 21b.
Below, describe at the control mode of well heater provided by the present invention, please cooperate Fig. 5,
Fig. 5 is a detailed block diagram of the present invention.
One conductive film 261 that is provided with heating unit 262a and 262b at first is provided, and heating unit 262a and 262b lay respectively at the two ends of conductive film 261, in order to electric conduction of heating film 261.A heater circuit and a temperature sensor 263 couple, and temperature sensor 263 has a heater switch 264, and heater switch 264 is in order to open or to close heater circuit according to 263 sensed temperature of temperature sensor.But the temperature of temperature sensor 263 sensing display panels itself and the temperature of environment, the temperature that senses when temperature sensor 263 is crossed when low, for example be the following temperature of-20 degree Celsius, temperature sensor 263 can transmit a signal to heater switch 264, to start heater circuit.After the heating unit 262a of heater circuit and 262b were activated, conductive film 261 resistance own promptly can be because of electric current comes the heating fluid LCD panel by producing heat energy, and under fixing electric current, the resistance of resistance is high more, and the speed of heating is fast more.Wherein, the rate of heat addition of control display panels can be represented by following equation:
P＝RI
2
V/R＝I
P: heating power
R: the resistance of conductive film
I: current flow
V: driving voltage
In heating unit 262a and 262b are activated process with electric conduction of heating film 261, when the temperature that senses when temperature sensor 263 reaches certain value, for example be the above temperature of 25 degree Celsius, temperature sensor 263 can transmit a signal to heater switch 264, and heater switch 264 is promptly closed heating unit 262a and 262b.After heating unit 262a and 262b were closed, conductive film 261 no currents passed through, and the action of heating fluid LCD panel promptly stops.
According to well heater provided by the present invention, the problem that can avoid display panels to cause changing mutually of liquid crystal under the environment of excessive low temperature and liquid crystal can't be reversed in response to the variation of electric field can effectively make liquid crystal maintain within the exercisable temperature range by the heating of well heater.
Claims (10)
1. display panels comprises at least:
One substrate;
One liquid crystal layer; And
One well heater, be arranged at a side of this substrate, optionally heat this liquid crystal layer, wherein this well heater comprises a conductive film and a heater circuit, and this conductive film is a side that is formed at this substrate, and this heater circuit comprises at least two heating units, is arranged at the two ends of this conductive film, and has potential difference (PD) between these two heating units, in order to provide current flowing in this conductive film.
2. display panels according to claim 1, wherein this well heater more comprises a sensor, and this sensor more comprises a heater switch, in order to start according to this sensor institute sensed temperature or to close this heater circuit.
3. display panels according to claim 1, wherein this substrate is made by polyethylene terephthalate (PET) or polycarbonate (PC) or other high molecular polymer.
4. a well heater is applicable to a display panels, and this display panels has a substrate, and wherein this well heater comprises at least: a conductive film is formed at a side of this substrate; And
One heater circuit comprises at least two heating units, is arranged at the two ends of this conductive film, and has potential difference (PD) between these two heating units, in order to provide a current flowing in this conductive film to heat.
5. well heater according to claim 4 wherein more comprises a sensor, and this sensor comprises a heater switch, in order to start according to this sensor institute sensed temperature or to close this heater circuit.
6. well heater according to claim 4, wherein this substrate is made by polyethylene terephthalate (PET) or polycarbonate (PC) or other high molecular polymer.
7. well heater according to claim 4, wherein this conductive film is made by indium tin oxide (ITO) or silver (Ag).
8. the manufacture method of a well heater is applicable to a display panels, comprises the following steps:
One substrate is provided;
On this substrate, form a conductive film;
One heater circuit is set on this conductive film, and this heater circuit comprises that at least two heating units are arranged at this conductive film both sides, has potential difference (PD) between these two heating units, with so that this conductive film of a current flowing to heat;
One sensor is set on this display panels, and this sensor and this heater circuit couple, and this sensor is in order to detect this display panels temperature; And
One heater switch is set on this display panels, and this heater switch and this sensor couple, and start or close this heater circuit in order to the temperature according to this sensor detecting.
9. the manufacture method of well heater according to claim 8, wherein this substrate is made by polyethylene terephthalate (PET) or polycarbonate (PC) or other high molecular polymer.
10. the manufacture method of well heater according to claim 8, wherein this conductive film is indium tin oxide (ITO) or silver (Ag).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410003171 CN1661422A (en) | 2004-02-24 | 2004-02-24 | LCD faceplate, heater and fabricating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410003171 CN1661422A (en) | 2004-02-24 | 2004-02-24 | LCD faceplate, heater and fabricating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1661422A true CN1661422A (en) | 2005-08-31 |
Family
ID=35010832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410003171 Pending CN1661422A (en) | 2004-02-24 | 2004-02-24 | LCD faceplate, heater and fabricating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1661422A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101398551B (en) * | 2007-09-26 | 2011-03-23 | 北京京东方光电科技有限公司 | Flat panel display device with heating structure |
| 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 |
| WO2015010383A1 (en) * | 2013-07-26 | 2015-01-29 | 北京京东方光电科技有限公司 | Liquid crystal display |
| 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 |
| CN110197749A (en) * | 2018-02-27 | 2019-09-03 | 香港理工大学 | Integrated heater and its temperature sensing method |
| CN112394559A (en) * | 2019-08-12 | 2021-02-23 | 群创光电股份有限公司 | Electronic device |
| CN112612154A (en) * | 2019-10-03 | 2021-04-06 | 群创光电股份有限公司 | Liquid crystal device having a plurality of liquid crystal cells |
-
2004
- 2004-02-24 CN CN 200410003171 patent/CN1661422A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101398551B (en) * | 2007-09-26 | 2011-03-23 | 北京京东方光电科技有限公司 | Flat panel display device with heating structure |
| 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 |
| 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 |
| WO2015010383A1 (en) * | 2013-07-26 | 2015-01-29 | 北京京东方光电科技有限公司 | Liquid crystal display |
| CN110197749A (en) * | 2018-02-27 | 2019-09-03 | 香港理工大学 | Integrated heater and its temperature sensing method |
| 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 |
| CN112394559A (en) * | 2019-08-12 | 2021-02-23 | 群创光电股份有限公司 | Electronic device |
| CN112612154A (en) * | 2019-10-03 | 2021-04-06 | 群创光电股份有限公司 | Liquid crystal device having a plurality of liquid crystal cells |
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