CN103033967B - A kind of LCDs with heating function - Google Patents
A kind of LCDs with heating function Download PDFInfo
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- CN103033967B CN103033967B CN201210554799.XA CN201210554799A CN103033967B CN 103033967 B CN103033967 B CN 103033967B CN 201210554799 A CN201210554799 A CN 201210554799A CN 103033967 B CN103033967 B CN 103033967B
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Abstract
The invention discloses a kind of LCDs with heating function, its spy is: the relative both sides that described heater is ito glass substrate are provided with electrode strip; Every strip electrode bar is divided into three equal parts, and the thickness at two ends is equal, and is greater than middle thickness, owing to adopting above-mentioned structure, the invention has the advantages that: 1, display screen is carried out to homogeneous heating, avoid display effect to occur difference; 2, simple in structure, be easy to realize, without increasing too much cost; 3, less to existing heater change, be applicable to transformation on a large scale.<!--1-->
Description
Technical field
The present invention relates to production and the manufacture of display screen, particularly a kind of liquid crystal display with heating functionScreen.
Background technology
Along with making rapid progress of electronic display technology, many optics replace mechanical display gradually.But all can there is the situation of hydraulic performance decline in a lot of display screens, have a strong impact on electronic console under low temperature environmentThe range of application of part.
In order to address the above problem, in most cases all adopt ITO (indiumthioxide-indium oxide at presentTin) heater. When use, be placed on need heating display device before or below. But in realityWhen border is used, because the heat radiation at edge is much larger than the heat radiation at center, cause the temperature inequality of whole device surfaceEven, there is the difference of display effect.
For the deficiencies in the prior art, provide a kind of novel heater can after display screen is carried out allEven heating is the problem that prior art need to solve.
Summary of the invention
Technical problem to be solved by this invention is, a kind of LCDs with heating function is provided, withReach the object to display screen homogeneous heating.
For achieving the above object, technical scheme of the present invention is, a kind of LCDs with heating function,Its spy is: the relative both sides that described heater is ito glass substrate are provided with electrode strip; Every strip electrodeBar is taking centre as benchmark is divided into multiple equal portions, and the thickness at two ends is equal, and is greater than middle thickness, makes twoIn the middle of the caloric value of end is greater than. Thereby solve in the time that display screen is heated the periphery too fast problem of dispelling the heat.
Described electrode strip is arranged on two relatively long limits of ito glass substrate.
Described electrode strip two ends and middle Thickness Ratio are 3:1.
Described electrode strip is fixed on ito glass substrate by bond plies.
Described electrode strip is that conductive silver paste is made.
Have a LCDs for heating function, owing to adopting above-mentioned structure, advantage of the present invention existsIn: 1, display screen is carried out to homogeneous heating, avoid display effect to occur difference; 2, simple in structure, be easy toRealize, without increasing too much cost; 3, less to existing heater change, be applicable to transformation on a large scale.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation;
Fig. 1 is the structural representation of a kind of LCDs with heating function of the present invention;
Fig. 2 is the side structure schematic diagram of a kind of LCDs with heating function of the present invention;
Fig. 3 is the equivalent circuit diagram after a kind of LCDs coating electrode bar with heating function of the present invention;
Fig. 4 is the heating effect intention of a kind of LCDs with heating function of the present invention;
Fig. 5 is the heating effect schematic diagram of heater in prior art;
In Fig. 1-2,1, ito glass substrate; 2, electrode strip.
Detailed description of the invention
The present invention is ito glass substrate 1, and wherein relative both sides are coated with the electrode strip 2 of conduction. Now canThe device in parallel forming ITO heater is regarded as to N resistance, as shown in Figure 3. If by changingThe resistance of electrode strip itself, the heating power of corresponding region changes correspondence. Reach and improve ITO heaterSurface heated Temperature Distribution. Ito glass substrate 1 has two relative long limits and two relative minor faces. WhereinTwo long limit edge-coatings have conductive electrode bar 2. By reducing the bulk resistor of both sides on conductive electrode bar 2, rightAnswer the all-in resistance in region to reduce, according to formula P=U2/R, (P is heating power, and U is heating voltage, and R isHeating resistor), R reduces P and increases, and surrounding caloric value is greater than center, and edge rapid heat dissipation, both are mutualOffset, reach the object of balanced heat radiation.
As shown in Figure 1-2, the present invention is that the relative both sides of ito glass substrate 1 are provided with electrode strip 2; EveryElectrode strip 2 is taking centre as benchmark is divided into multiple equal portions, and the thickness at two ends is equal, and is greater than middle thickness,Make the caloric value at two ends be greater than middle. Thereby solve too fast the asking of periphery heat radiation in the time that display screen is heatedTopic.
Electrode strip 2 two ends and middle Thickness Ratio are 3:1. Electrode strip 2 is fixed to ITO by bond pliesOn glass substrate. Electrode strip 2 is made for conductive silver paste.
For example choose ito glass substrate 1 and be of a size of 220.4mm × 168.1mm, ito glass substrate faceResistance is 10 Ω/㎡. Conductive electrode bar 2, width is 3mm. Adopting resistivity is (6.4～6.6) × 10-4The conductive silver paste of Ω mm is made. Electrode strip body 2 resistance are divided into three parts. The wherein conductive silver at two endsSlurry thickness is 0.3mm, and length is 75mm, and middle conductive silver paste thickness is 0.1mm. According to formula R=ρ l/(da) (R is resistance, and ρ is conductive silver paste resistivity, and l is electrode strip length, and d is conductive silver paste thickness,A is conductive silver paste width), the conductive silver paste resistance that can calculate two ends is 0.1 Ω, middle conductive silver pasteThickness is 0.3 Ω. Give after electrode strip 2 two ends energisings, right in the middle of the corresponding region overall power at two ends is greater thanThe region of answering, and the region at two ends more keeps to the side, and dispels the heat larger than zone line, both cancel out each other, fromAnd make the Temperature Distribution on ITO surface more even. As shown in Figure 4.
By reference to the accompanying drawings the present invention is exemplarily described above, obviously specific implementation of the present invention is not subject toState the restriction of mode, if the various improvement that adopted technical solution of the present invention to carry out, or without improving directlyBe applied to other occasion, all within protection scope of the present invention.
Claims (3)
1. have a LCDs for heating function, its spy is: described LCDs is that the relative both sides of ito glass substrate (1) are provided with electrode strip (2); Every strip electrode bar (2) is taking centre as benchmark is divided into multiple equal portions, and the thickness at two ends equates, and thickness in the middle of being greater than, and the caloric value at rear electrode bar (2) two ends that make to switch on is greater than the caloric value at middle part; Electrode strip (2) is arranged on two relatively long limits of ito glass substrate (1); Described electrode strip (2) two ends and middle Thickness Ratio are 3:1;
The resistance that described electrode strip adopts is R=ρ l/(da);
Wherein R is resistance, and ρ is conductive silver paste resistivity, and l is electrode strip length, and d is conductive silver paste thickness, and a is conductive silver paste width,
After adopting above-mentioned resistance to the energising of electrode strip (2) two ends, the region of correspondence in the middle of the corresponding region overall power at two ends is greater than, and the region at two ends more keeps to the side, and dispels the heat larger than zone line, both cancel out each other, thereby make the Temperature Distribution on ITO surface more even.
2. a kind of LCDs with heating function according to claim 1, is characterized in that: described electrode strip (2) is fixed on ito glass substrate (1) by bond plies.
3. a kind of LCDs with heating function according to claim 1, is characterized in that: described electrode strip (2) is made for conductive silver paste.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210554799.XA CN103033967B (en) | 2012-12-19 | 2012-12-19 | A kind of LCDs with heating function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210554799.XA CN103033967B (en) | 2012-12-19 | 2012-12-19 | A kind of LCDs with heating function |
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| Publication Number | Publication Date |
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| CN103033967A CN103033967A (en) | 2013-04-10 |
| CN103033967B true CN103033967B (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210554799.XA Active CN103033967B (en) | 2012-12-19 | 2012-12-19 | A kind of LCDs with heating function |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104090392B (en) * | 2014-06-30 | 2017-04-05 | 合肥工业大学 | A kind of manufacture method of the ITO heating plates for large area LCD screen |
| 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 |
| CN105929584A (en) * | 2016-06-27 | 2016-09-07 | 中航华东光电有限公司 | Uniform heating device of liquid crystal screen |
| CN107121807A (en) * | 2017-05-19 | 2017-09-01 | 合肥市惠科精密模具有限公司 | A kind of LCDs with automatic heating function |
| CN108091778A (en) * | 2017-12-27 | 2018-05-29 | 深圳市华星光电技术有限公司 | Drying means, heating unit and its manufacturing method of inkjet printing film layer |
| CN109375400B (en) * | 2018-10-12 | 2021-09-21 | 中航华东光电有限公司 | Novel optical heater and preparation method thereof |
| CN112394559B (en) * | 2019-08-12 | 2023-05-16 | 群创光电股份有限公司 | Electronic device |
| CN110730520A (en) * | 2019-10-30 | 2020-01-24 | 中航华东光电有限公司 | Display screen heater, heating method and system |
| CN111694181B (en) * | 2020-07-07 | 2022-06-21 | 中航华东光电有限公司 | Method for uniformly heating liquid crystal screen assembly at low temperature |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62294228A (en) * | 1986-06-13 | 1987-12-21 | Tokyo Electric Co Ltd | Projector |
| JPH03107123A (en) * | 1989-09-21 | 1991-05-07 | Canon Inc | Panel heater |
| US5920366A (en) * | 1996-09-24 | 1999-07-06 | Rockwell International Corporation | Dynamic multi-contact display heater system |
| CN101510020A (en) * | 2009-03-24 | 2009-08-19 | 天马微电子股份有限公司 | ITO heater and heating method of LCD |
| CN201383059Y (en) * | 2009-03-24 | 2010-01-13 | 天马微电子股份有限公司 | ITO heater |
| CN201477329U (en) * | 2009-06-01 | 2010-05-19 | 天马微电子股份有限公司 | Liquid crystal display device |
-
2012
- 2012-12-19 CN CN201210554799.XA patent/CN103033967B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62294228A (en) * | 1986-06-13 | 1987-12-21 | Tokyo Electric Co Ltd | Projector |
| JPH03107123A (en) * | 1989-09-21 | 1991-05-07 | Canon Inc | Panel heater |
| US5920366A (en) * | 1996-09-24 | 1999-07-06 | Rockwell International Corporation | Dynamic multi-contact display heater system |
| CN101510020A (en) * | 2009-03-24 | 2009-08-19 | 天马微电子股份有限公司 | ITO heater and heating method of LCD |
| CN201383059Y (en) * | 2009-03-24 | 2010-01-13 | 天马微电子股份有限公司 | ITO heater |
| CN201477329U (en) * | 2009-06-01 | 2010-05-19 | 天马微电子股份有限公司 | Liquid crystal display device |
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| CN103033967A (en) | 2013-04-10 |
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