CN103592789A - Liquid crystal display with touch and heat supply functions and manufacturing process thereof - Google Patents
Liquid crystal display with touch and heat supply functions and manufacturing process thereof Download PDFInfo
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- CN103592789A CN103592789A CN201310634290.0A CN201310634290A CN103592789A CN 103592789 A CN103592789 A CN 103592789A CN 201310634290 A CN201310634290 A CN 201310634290A CN 103592789 A CN103592789 A CN 103592789A
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- oxide conductive
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- conductive film
- indium oxide
- tin indium
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 57
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 239000011521 glass Substances 0.000 claims abstract description 40
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 claims description 56
- 239000003292 glue Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- 238000007731 hot pressing Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000001771 vacuum deposition Methods 0.000 claims description 6
- 235000012239 silicon dioxide Nutrition 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 4
- 230000000052 comparative effect Effects 0.000 claims description 2
- 238000002788 crimping Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims description 2
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 abstract 14
- 239000010409 thin film Substances 0.000 abstract 14
- 239000000758 substrate Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The invention discloses a liquid crystal display with the touch and heat supply functions and a manufacturing process of the liquid crystal display. The liquid crystal display comprises a first glass sheet, a first layer indium tin oxide conductive thin film, a fourth layer indium tin oxide conductive thin film, a second glass sheet, a second layer indium tin oxide conductive thin film, a third layer indium tin oxide conductive thin film, a liquid crystal layer, a first polarizer and a second polarizer. The two sides of the first glass sheet are coated with the first layer indium tin oxide conductive thin film and the fourth layer indium tin oxide conductive thin film respectively. The fourth layer indium tin oxide conductive thin film is externally connected with a second control module. The second glass sheet and the first glass sheet are oppositely arranged. The two sides of the second glass sheet are coated with the second layer indium tin oxide conductive thin film and the third layer indium tin oxide conductive thin film respectively, and the third layer indium tin oxide conductive thin film is externally connected with a first control module. The liquid crystal layer is arranged between the first layer indium tin oxide conductive thin film and the second layer indium tin oxide conductive thin film. The first polarizer is arranged on the fourth layer indium tin oxide conductive thin film. The second polarizer is arranged on the third layer indium tin oxide conductive thin film. The liquid crystal display has the touch function under the condition that the thickness of the display is hardly increased, and can have the normal display function at low temperature.
Description
Technical field
The present invention relates to field of liquid crystal, relate in particular to a kind of liquid crystal display and manufacturing process thereof with touch and heat supply function.
Background technology
At present liquid crystal display obtains applying more and more widely, conventionally depends on temperature for response time of the liquid crystal material of liquid crystal display, especially all the more so for the larger liquid crystal material of viscosity.For example, when temperature is during lower than 0 ℃, the liquid crystal material viscous that can become, makes response speed slack-off, display color distortion; When temperature is too low, the liquid crystal state of liquid crystal material can disappear, and becomes crystal.Therefore best for guaranteeing the serviceability of liquid crystal display, need make it be operated in rational temperature range.
CTP(capacitive touch screen as accessory), it is tending towards lightening customer requirement, partial structurtes schematic diagram after traditional CTP and display are fitted as shown in Figure 1, at TP(touch-screen) side of glass sheet 202 plates one deck TP ITO201(tin indium oxide conductive film), by TP(touch-screen) opposite side of glass sheet 202 do not have a side of viscosity by adhesive glue (OCA glue or glue etc.) and the front polaroid 204 of display and fits, the sticking side of front polaroid 204 tools is connected with front glass sheet 205, TP(touch-screen like this) between glass sheet 202 and front polaroid 204, can form certain laminating gap 203.Therefore tradition has that the thickness of display of touch function is large and manufacture craft is more complicated.
Summary of the invention
The object of the present invention is to provide a kind of liquid crystal display and manufacturing process thereof with touch and heat supply function, make liquid crystal display in the situation that increasing thickness hardly, there is touch function, and can normally show at low temperatures.
For achieving the above object, an aspect of of the present present invention has proposed a kind of liquid crystal display with heat supply function, and described liquid crystal display comprises:
The first glass sheet;
Be plated on the ground floor tin indium oxide conductive film of described the first glass sheet one side;
The second glass sheet, is oppositely arranged with described the first glass sheet;
Be plated on respectively second layer tin indium oxide conductive film and the 3rd layer of tin indium oxide conductive film of described the second glass sheet both sides, wherein said the 3rd layer of tin indium oxide conductive film, for external the first control module, heats described liquid crystal display;
One liquid crystal layer, is arranged between described ground floor tin indium oxide conductive film and second layer tin indium oxide conductive film;
The first polaroid, is arranged at the opposite side relative with described ground floor tin indium oxide conductive film side of described the first glass sheet;
The second polaroid, is arranged on described the 3rd layer of tin indium oxide conductive film.
The beneficial effect of the program of the present invention is the setting by said structure, and liquid crystal display has heating function.
Preferably, on described the 3rd layer of tin indium oxide conductive film, by conductive adhesion glue, fixed two parallel electrodes, described electrode and described the second polaroid are tightly connected, and external described the first control module of described two electrodes.
Preferably, described conductive adhesion glue is ACF, anisotropic conductive film.
Preferably, described electrode is FPC, flexible print circuit.
Preferably, in removing the region of two electrodes, described the 3rd layer of tin indium oxide conductive film print last layer insulation course, with bad reactions such as the oxidation that prevents from occurring and chemical corrosions in heat supplying process.
Preferably, described insulation course is silicon dioxide insulating layer.
Preferably, the opposite side relative with described ground floor tin indium oxide conductive film side at described the first glass sheet plates the 4th layer of tin indium oxide conductive film, for external the second control module, described liquid crystal display is carried out to touch control, make liquid crystal display there is touch function.
Preferably, on described the 4th layer of tin indium oxide conductive film, by conductive adhesion glue, fixed two parallel electrodes, described electrode and described the first polaroid are tightly connected, and external described the second control module of described two electrodes.
Preferably, described the first control module comprises temperature sensor, A/D converter, and microcontroller, signal amplifier and direct supply, wherein,
Temperature sensor, for detection of the temperature value of external environment, and converts thereof into electric signal;
A/D converter, for carrying out analog to digital conversion by described electric signal;
Microcontroller, for the signal after analog to digital conversion and default temperature threshold are compared, and the output control signal corresponding with comparative result;
Signal amplifier, for amplifying rear output by the signal of microcontroller output;
Direct supply, for powering to signal amplifier.
Another aspect of the present invention has proposed a kind of manufacturing process with the liquid crystal display of touch and heat supply function, and the manufacturing process of described liquid crystal display comprises the following steps:
Adopt technique for vacuum coating, ground floor tin indium oxide conductive film and the 4th layer of tin indium oxide conductive film are plated on respectively to the both sides of the first glass sheet;
Adopt technique for vacuum coating, second layer tin indium oxide conductive film and the 3rd layer of tin indium oxide conductive film are plated on respectively to the both sides of the second glass sheet;
The 4th layer of tin indium oxide conductive film is etched into the required pattern of touch-screen;
One liquid crystal layer is sealed between described ground floor tin indium oxide conductive film and second layer tin indium oxide conductive film;
Mode by electrode with hot pressing is connected on the 3rd layer of tin indium oxide conductive film and the 4th layer of tin indium oxide conductive film by conductive adhesion glue laminated;
Adopt typography, a silicon dioxide insulating layer is printed in to described the 3rd layer of region that tin indium oxide conductive film is removed crimping electrode;
Respectively the electrode on the 4th layer of tin indium oxide conductive film and the 3rd layer of tin indium oxide conductive film and the first polaroid and the second polaroid are tightly connected; And
Respectively the 3rd layer of tin indium oxide conductive film is connected with the second control module with the first control module with the electrode on the 4th layer of tin indium oxide conductive film.
The beneficial effect of the program of the present invention is by above-mentioned manufacturing process, makes liquid crystal display in the situation that increasing thickness hardly, have touch function, and can normally show at low temperatures.
Accompanying drawing explanation
Fig. 1 shows the partial structurtes schematic diagram of the display in prior art with touch function.
Fig. 2 shows the structural representation of liquid crystal display involved in the present invention.
Fig. 3 shows the cut-open view of the TP ITO layer of liquid crystal display involved in the present invention.
Fig. 4 shows the TP ITO layer of liquid crystal display involved in the present invention and the front vertical view of control chip thereof.
Fig. 5 shows the cut-open view of the heat supply ITO layer of liquid crystal display involved in the present invention.
Fig. 6 shows the heat supply ITO layer of liquid crystal display involved in the present invention and the rear vertical view of control module thereof.
Fig. 7 shows the another kind of FPC arrangement figure different from FPC arrangement in Fig. 6.
Fig. 8 shows the structured flowchart of the control module of heat supply ITO layer.
Fig. 9 shows the process flow diagram that control module is controlled the work of heat supply ITO layer.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
As shown in Figure 2, according to the liquid crystal display with touch and heat supply function involved in the present invention, comprise front polaroid 101, TP ITO102, front glass sheet 103, front demonstration ITO104, liquid crystal layer 105, rear demonstration ITO106, back glass sheet 107, heat supply ITO108 and rear polaroid 109.
By technique for vacuum coating, in the both sides of front glass sheet 103, plate respectively ITO tin indium oxide conductive film, form TP ITO layer and front demonstration ITO layer; TP ITO102, front glass sheet 103, front demonstration ITO104 forms front glass substrate; By technique for vacuum coating, in the both sides of back glass sheet 107, plate respectively ITO conductive film, after forming, show ITO layer and heat supply ITO layer; Rear demonstration ITO106, back glass sheet 107, heat supply ITO108 forms rear glass substrate; Front glass substrate and rear glass substrate are oppositely arranged, and between front demonstration ITO104 and rear demonstration ITO106 sandwiched liquid crystal layer 105; On the TP ITO102 of front glass substrate, be provided with front polaroid 101; On the heat supply ITO108 of rear glass substrate, be provided with rear polaroid 109.
Concrete TP ITO102 and the relation that arranges between front polaroid 101 are as Fig. 3, shown in 4, in order to realize the touch function of display, TP ITO102 need to be etched into TP pattern, and be connected with outside control chip IC1023, therefore in the upper and lower side frame region of TP ITO102, as shown in Figure 4, with hot pressing mode by FPC(flexible print circuit) 1022 parallel hot pressing are on TP ITO102, and by the external control chip IC1023 of above-mentioned FPC1022, wherein between FPC1022 and TP ITO102, by conductive adhesion glue ACF glue 1021, be connected, as shown in Figure 3, finally FPC1022 is tightly connected by fluid sealant and front polaroid 101.
Concrete heat supply ITO108 and the relation that arranges between rear polaroid 109 are as Fig. 5, shown in 6, in order to realize the heat supply function of display, heat supply ITO108 need to be connected with outside control module 1084, therefore in the upper and lower side frame region of heat supply ITO108, as shown in Figure 6, with hot pressing mode by the parallel hot pressing of FPC1082 on heat supply ITO108, and by the external control module 1084 of above-mentioned FPC1082, wherein between FPC1082 and heat supply ITO108, by conductive adhesion glue ACF glue 1081, be connected, and in the region of removing FPC1082 of heat supply ITO108, by typography, print last layer silicon dioxide insulating layer 1083, be used for preventing the bad reactions such as the oxidation that occurs and chemical corrosion in heat supplying process, as Fig. 5, shown in 6, if this region is without any protective seam, in the environment of moist or the gas that is corrosive, heat supply ITO108 is very easily oxidized or destroy, cause its impedance to increase, heating efficiency reduces.Finally FPC1082 is tightly connected by fluid sealant and rear polaroid 109.
In order to make the viewing area heat supply of liquid crystal display even, FPC1082, except adopting the arrangement in Fig. 6, can also adopt the arrangement in Fig. 7, is about to FPC1082 and uses the parallel hot pressing of hot pressing mode in the left and right side frame region of heat supply ITO108.The resistance of two kinds of arrangements of above-mentioned FPC1082 is different, and wherein the contact length of resistance value and FPC1082 and heat supply ITO108 is inversely proportional to, and is directly proportional to the parallel distance of two FPC1082, is inversely proportional to the thickness of heat supply ITO108.
As shown in Figure 8, it comprises temperature sensor 10841 to the concrete structure block diagram of the control module 1084 of heat supply ITO108, is preferably thermistor, A/D converter 10842, microcontroller 10843, signal amplifier 10844 and direct supply 10845.Wherein temperature sensor 10841, A/D converter 10842, and microcontroller 10843 is connected successively with signal amplifier 10844, and signal amplifier 10844 is powered by direct supply 10845.
As shown in Figure 9, first temperature sensor 10841 detects the temperature value of external environments to the concrete process flow diagram of controlling heat supply ITO108 work, and converts described temperature value to electric signal and be sent to A/D converter 10842, as shown in S101 in Fig. 9; A/D converter 10842 receives above-said current signal, and is carried out analog to digital conversion, is sent to microcontroller 10843, as shown in S102 in Fig. 9; Microcontroller 10843 receives above-mentioned signal and judges that whether it is lower than low temperature threshold value, as shown in S103 in Fig. 9; The low temperature threshold value of supposing heat supply ITO108 is-5 ℃, its high temperature threshold value is+10 ℃, in step S103, judge when the signal receiving is lower than low temperature threshold value, microcontroller 10843 outputs start the signal of heat supply ITO108, as shown in S104 in Fig. 9, signal amplifier 10844 receives above-mentioned signal and amplifies output afterwards, to control the duty of heat supply ITO108, as shown in S107 in Fig. 9; Return to afterwards step S101; In step S103, judge when the signal receiving is higher than low temperature threshold value, microcontroller 10843 continues to judge that whether the signal receiving is higher than high temperature threshold value, as shown in S105 in Fig. 9; In step S105, judge when the signal receiving is lower than high temperature threshold value, return to step S101; In step S105, judge when the signal receiving is higher than high temperature threshold value, the signal of heat supply ITO108 is closed in microcontroller 10843 outputs, as shown in S106 in Fig. 9, signal amplifier 10844 receives above-mentioned signal and amplifies output afterwards, to control the duty of heat supply ITO108, as shown in S107 in Fig. 9; Return to afterwards step S101.
Liquid crystal display involved in the present invention has altogether four layers of ITO, utilize TP ITO102 to realize touch function on the one hand, described TP ITO102 method for making is simple, cost of manufacture is low, touch functional, and compare with the display with touch function of the prior art, the TP ITO102 in the present invention increases the thickness of display hardly; Utilize on the other hand heat supply ITO108 to realize the function that display is heated, described heat supply ITO108 method for making is simple, and heat conductivility is good, can make display normally show at low temperatures.
Claims (10)
1. a liquid crystal display with heat supply function, is characterized in that, described liquid crystal display comprises:
The first glass sheet;
Be plated on the ground floor tin indium oxide conductive film of described the first glass sheet one side;
The second glass sheet, is oppositely arranged with described the first glass sheet;
Be plated on respectively second layer tin indium oxide conductive film and the 3rd layer of tin indium oxide conductive film of described the second glass sheet both sides, wherein said the 3rd layer of tin indium oxide conductive film, for external the first control module, heats described liquid crystal display;
One liquid crystal layer, is arranged between described ground floor tin indium oxide conductive film and second layer tin indium oxide conductive film;
The first polaroid, is arranged at the opposite side relative with described ground floor tin indium oxide conductive film side of described the first glass sheet;
The second polaroid, is arranged on described the 3rd layer of tin indium oxide conductive film.
2. the liquid crystal display with heat supply function according to claim 1, it is characterized in that: on described the 3rd layer of tin indium oxide conductive film, by conductive adhesion glue, two parallel electrodes have been fixed, described electrode and described the second polaroid are tightly connected, and external described the first control module of described two electrodes.
3. the liquid crystal display with heat supply function according to claim 2, is characterized in that: described conductive adhesion glue is ACF, anisotropic conductive film.
4. the liquid crystal display with heat supply function according to claim 2, is characterized in that: described electrode is FPC, flexible print circuit.
5. the liquid crystal display with heat supply function according to claim 2, is characterized in that: in described the 3rd layer of tin indium oxide conductive film removed the region of two electrodes, print last layer insulation course.
6. the liquid crystal display with heat supply function according to claim 5, is characterized in that: described insulation course is silicon dioxide insulating layer.
7. according to the liquid crystal display with heat supply function described in any one in claim 1 to 6, it is characterized in that: the opposite side relative with described ground floor tin indium oxide conductive film side at described the first glass sheet plates the 4th layer of tin indium oxide conductive film, for external the second control module, described liquid crystal display is carried out to touch control.
8. the liquid crystal display with heat supply function according to claim 7, it is characterized in that: on described the 4th layer of tin indium oxide conductive film, by conductive adhesion glue, two parallel electrodes have been fixed, described electrode and described the first polaroid are tightly connected, and external described the second control module of described two electrodes.
9. the liquid crystal display with touch and heat supply function according to claim 1, is characterized in that: described the first control module comprises temperature sensor, A/D converter, and microcontroller, signal amplifier and direct supply, wherein,
Temperature sensor, for detection of the temperature value of external environment, and converts thereof into electric signal;
A/D converter, for carrying out analog to digital conversion by described electric signal;
Microcontroller, for the signal after analog to digital conversion and default temperature threshold are compared, and the output control signal corresponding with comparative result;
Signal amplifier, for amplifying rear output by the signal of microcontroller output;
Direct supply, for powering to signal amplifier.
10. a manufacturing process with the liquid crystal display of touch and heat supply function, is characterized in that, the manufacturing process of described liquid crystal display comprises the following steps:
Adopt technique for vacuum coating, ground floor tin indium oxide conductive film and the 4th layer of tin indium oxide conductive film are plated on respectively to the both sides of the first glass sheet;
Adopt technique for vacuum coating, second layer tin indium oxide conductive film and the 3rd layer of tin indium oxide conductive film are plated on respectively to the both sides of the second glass sheet;
The 4th layer of tin indium oxide conductive film is etched into the required pattern of touch-screen;
One liquid crystal layer is sealed between described ground floor tin indium oxide conductive film and second layer tin indium oxide conductive film;
Mode by electrode with hot pressing is connected on the 3rd layer of tin indium oxide conductive film and the 4th layer of tin indium oxide conductive film by conductive adhesion glue laminated;
Adopt typography, a silicon dioxide insulating layer is printed in to described the 3rd layer of region that tin indium oxide conductive film is removed crimping electrode;
Respectively the electrode on the 4th layer of tin indium oxide conductive film and the 3rd layer of tin indium oxide conductive film and the first polaroid and the second polaroid are tightly connected; And
Respectively the 3rd layer of tin indium oxide conductive film is connected with the second control module with the first control module with the electrode on the 4th layer of tin indium oxide conductive film.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310634290.0A CN103592789A (en) | 2013-12-02 | 2013-12-02 | Liquid crystal display with touch and heat supply functions and manufacturing process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310634290.0A CN103592789A (en) | 2013-12-02 | 2013-12-02 | Liquid crystal display with touch and heat supply functions and manufacturing process thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106646967A (en) * | 2016-10-28 | 2017-05-10 | 努比亚技术有限公司 | LED screen and temperature compensation method thereof |
| CN108957822A (en) * | 2018-08-10 | 2018-12-07 | 中国科学院宁波材料技术与工程研究所 | A kind of liquid crystal display and production 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 |
| CN110675769A (en) * | 2019-09-27 | 2020-01-10 | 京东方科技集团股份有限公司 | Display device and electronic apparatus |
| CN111240534A (en) * | 2020-01-10 | 2020-06-05 | 广西中沛光电科技有限公司 | Two-sided silk screen printing conductive glass capacitive touch screen |
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Inventor after: Wang Zhaocai Inventor after: Xie Daizhou Inventor after: Li Huaming Inventor after: Gao Min Inventor after: Yuan Chaoyi Inventor after: Li Chao Inventor after: Han Zhe Inventor after: Xu Changyuan Inventor after: Luo Jiquan Inventor after: Nong Rongbang Inventor after: Yu Hao Inventor after: Jiang Hai Inventor before: Wang Zhaocai Inventor before: Yuan Chaoyi Inventor before: Li Chao Inventor before: Han Zhe Inventor before: Xu Changyuan |
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Free format text: CORRECT: INVENTOR; FROM: WANG ZHAOCAI YUAN CHAOYI LI CHAO HAN ZHE XU CHANGYUAN TO: WANG ZHAOCAI YUAN CHAOYI LI CHAO HAN ZHE XU CHANGYUAN LUO JIQUAN NONG RONGBANG YU HAO JIANG HAI XIE DAIZHOU LI HUAMING GAO MIN |
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Application publication date: 20140219 |