CN203587919U - Heating uniformity improving device for specially-shaped liquid crystal display screen - Google Patents
Heating uniformity improving device for specially-shaped liquid crystal display screen Download PDFInfo
- Publication number
- CN203587919U CN203587919U CN201320745460.8U CN201320745460U CN203587919U CN 203587919 U CN203587919 U CN 203587919U CN 201320745460 U CN201320745460 U CN 201320745460U CN 203587919 U CN203587919 U CN 203587919U
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- Prior art keywords
- liquid crystal
- crystal display
- shaped liquid
- special
- sensor
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- Expired - Lifetime
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 40
- 238000010438 heat treatment Methods 0.000 title claims abstract description 25
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 239000011889 copper foil Substances 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 6
- 229910000570 Cupronickel Inorganic materials 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 claims description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000005520 cutting process Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 239000006260 foam Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002937 thermal insulation foam Substances 0.000 description 2
- 206010019133 Hangover Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Abstract
The utility model discloses a heating uniformity improving device for a specially-shaped liquid crystal display screen. The device comprises a heater (1). A plurality of electrode bars (3) are evenly distributed on the peripheral conductive surface of the heater (1), and one end of each electrode bar (3) is connected with a heater lead (5). A sensor (6) is arranged at the position, opposite to the other end of each electrode bar (3), of the non-conductive surface of the heater (1) and connected with a sensor lead (7). The heating uniformity of the specially-shaped liquid crystal display screen is obviously improved, and reliability of low-temperature work is guaranteed; the liquid crystal display screen can work reliably at a low temperature for a long time, and the display effect of the liquid crystal display screen is improved.
Description
Technical field
The utility model belongs to liquid crystal display field, relates in particular to a kind of special-shaped liquid crystal display homogeneous heating property improvement device.
Background technology
At present, along with the fast development of aerospace field, liquid crystal display is applied to cockpit display by large-scale popularization, limited by liquid crystal display physical dimension, and the liquid crystal display of volume production more and more can not meet the requirement of diversification passenger cabin to liquid crystal display profile.The liquid crystal display of tradition volume production is generally rectangle, and Aspect Ratio is 4:3 or 16:9, also has the Fang Ping that minority Aspect Ratio is 1:1.Due to the development of aircraft cockpit diversification, especially in military domain, the space in passenger cabin is at full stretch, requires the quantity of information showing to get more and more simultaneously.Pilot in passenger cabin, all information exchanges need to be crossed to the instrument or the liquid crystal display that are arranged in effective visual line of sight shows, be subject to the limitation of human eye angular field of view, can not be by the liquid crystal display in passenger cabin all with rectangle state mounting arrangement, space waste is too many like this, and the quantity of information of demonstration is relatively less.So, need how special-shaped liquid crystal display to be arranged on the specific position in aircraft cockpit.
According to liquid crystal display Drive of row and column displaying principle and drive circuitry arrangement, liquid crystal display can be cut into other shape, and ensure that not affecting signal shows.Conventional cutting mode has the types such as monolateral cutting, the cutting of adjacent both sides, turning cutting at present.Liquid crystal display can be cut into like this to the shapes such as the rectangle, pentagon of Fang Ping, special Aspect Ratio.The liquid crystal display that liquid crystal display after cutting is made shows all normal at normal temperature and high temperature signal, but in low temperature (military liquid crystal display requires-45 ℃ conventionally) situation, because liquid crystal is in crystalline state, need could normally to show after preheating, and under low temperature the type of heating of pentagon liquid crystal display and control mode more complicated, local temperature rise's speed is too fast, and overall temperature difference is excessive, and heating uniformity is poor.Conventional electrodes method for designing reliability is poor, conventionally there will be the display defects such as local message hangover under low temperature, or spot heating is too high causes liquefaction, or the internal stress of the excessive generation of overall temperature difference causes the functional faults such as well heater cracking.
In view of the current special-shaped problem running into that heats, pass through Different electrodes mode and add heat control and test discovery, only by design electrode mode and heating control mode, cannot ensure heating uniformity and low-temperature working reliability, in low-temperature working process, local temperature rise's speed can reach 109 ℃/min, entirety maximum temperature difference can reach 79 ℃, and the electrode of making is too complicated, control circuit is also too complicated, is not suitable for through engineering approaches application.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of special-shaped liquid crystal display homogeneous heating property improvement device that ensures heating uniformity and low-temperature working reliability.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of special-shaped liquid crystal display homogeneous heating property improvement device, comprise well heater, on described well heater surrounding conducting surface, be evenly distributed with multiple electrode strips, described electrode strip one end is connected with heater lead, on well heater nonconductive surface, be provided with sensor with electrode strip other end relative position place, and be provided with sensor lead and be connected with sensor.
Described electrode strip has three.
Described well heater edge nonconductive surface and be that effective display area is provided with conducting strip with exterior domain.
Described conducting strip is Copper Foil, and described Copper Foil is connected with well heater by heat-conducting glue or bond plies.
The pad that one end of described electrode strip makes by copper-nickel alloy sheet is connected with heater lead, and described heater lead is welded in the middle of pad.
Described sensor is connected with well heater by heat-conducting glue, and reinforces sensor surface and sensor lead root by silicon rubber.
Described electrode strip is that conductive silver paste high temperature sintering forms, and described pad is reinforced with U-shaped copper-nickel alloy sheet.
The utility model has the advantage of, three strip electrode modes are made with circuit control all simpler, heat more even; For better optimal control temperature rise rate and bulk temperature homogeneity, in effective display area, well heater edge, with external position, paste Heat Conduction Material, such as the good conductor of the heat such as Copper Foil, according to test figure, contrast, can reduce approximately 15% temperature rise rate, reduce approximately 20% overall unevenness; Special-shaped liquid crystal display heating uniformity obviously improves, and has ensured the reliability of low-temperature working.Can stand the reliability test of long-time low-temperature working, improve liquid crystal display low temperature display effect.
Accompanying drawing explanation
Fig. 1 is the front elevation of a kind of special-shaped liquid crystal display homogeneous heating property improvement device of the utility model;
Fig. 2 is the rear view of the special-shaped liquid crystal display homogeneous heating of Fig. 1 property improvement device;
Mark in above-mentioned figure is: 1, well heater, 2, Copper Foil, 3, electrode strip, 4, pad, 5, heater lead, 6, sensor, 7, sensor lead.
Embodiment
Fig. 1 and Fig. 2 are the structural representation of a kind of special-shaped liquid crystal display homogeneous heating property improvement device of the utility model, include well heater 1, well heater 1 is pentagon, on three limits at well heater 1 edge, be uniformly distributed three electrode strips 3 that use conductive silver paste high temperature sintering, electrode strip 3 ends are used copper-nickel alloy sheet to be manufactured with pad 4, and heater lead 5 is welded in the middle of pad 4.Three strip electrode modes are made with circuit control all simpler, totally six kinds of its contact conductor modes, and which kind of contact conductor mode all can make the afterbody temperature of electrode strip 3 the highest, and temperature rise rate is the fastest.So the distribution of sensor 6 positions is very clear and definite, adopt three sensors 6 to be installed on respectively the afterbody of electrode strip 3, according to Temperature Distribution, carry out cycle control contact conductor mode.Use heat-conducting glue sensor 6 to be arranged on the nonconductive surface of well heater 1 and electrode strip 3 afterbody opposite position places, and use silicon rubber to reinforce sensor 6 surface and sensor lead 7 roots.
Use heat-conducting glue or bond plies is fixed on well heater 1 nonconductive surface edge by Copper Foil 2 and be that effective display area is with exterior domain.According to test figure contrast, can reduce approximately 15% temperature rise rate, reduce approximately 20% overall unevenness.For further reducing overall unevenness, design cycle control circuit simultaneously, the screen assembly of making is assembled in structure simultaneously, inner structural wall pastes heat conduction foam and heat insulation foam, heat conduction foam directly contacts with well heater 1 sidewall, and heat conduction foam can improve the bulk temperature homogeneity of well heater 1.Heat insulation foam directly contacts with inner structural wall, can reduce low-temperature heat quantity and be transmitted in structure, reduces thermal loss.Simple in structure, easy to make, usage range is wide.
Adopt after said structure, special-shaped liquid crystal display heating uniformity obviously improves, and has ensured the reliability of low-temperature working.Can stand the reliability test of long-time low-temperature working, improve liquid crystal display low temperature display effect.
By reference to the accompanying drawings the utility model is exemplarily described above; obviously the utility model specific implementation is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or without improving, design of the present utility model and technical scheme are directly applied to other occasion, all within protection domain of the present utility model.
Claims (7)
1. a special-shaped liquid crystal display homogeneous heating property improvement device, it is characterized in that, comprise well heater (1), on described well heater (1) surrounding conducting surface, be evenly distributed with multiple electrode strips (3), described electrode strip (3) one end is connected with heater lead (5), on well heater (1) nonconductive surface, be provided with sensor (6) with electrode strip (3) other end relative position place, and be provided with sensor lead (7) and be connected with sensor (6).
2. special-shaped liquid crystal display homogeneous heating property improvement device as claimed in claim 1, is characterized in that, described electrode strip (3) has three.
3. special-shaped liquid crystal display homogeneous heating property improvement device as claimed in claim 1 or 2, is characterized in that, described well heater (1) edge nonconductive surface and be that effective display area is provided with conducting strip with exterior domain.
4. special-shaped liquid crystal display homogeneous heating property improvement device as claimed in claim 3, is characterized in that, described conducting strip is Copper Foil (2), and described Copper Foil (2) is connected with well heater (1) by heat-conducting glue or bond plies.
5. special-shaped liquid crystal display homogeneous heating property improvement device as claimed in claim 4, it is characterized in that, the pad (4) that one end of described electrode strip (3) makes by copper-nickel alloy sheet is connected with heater lead (5), and described heater lead (5) is welded in the middle of pad (4).
6. special-shaped liquid crystal display homogeneous heating property improvement device as claimed in claim 5, is characterized in that, described sensor (6) is connected with well heater (1) by heat-conducting glue, and reinforces sensor (6) surface and sensor lead (7) root by silicon rubber.
7. special-shaped liquid crystal display homogeneous heating property improvement device as claimed in claim 6, is characterized in that, described electrode strip (3) forms for conductive silver paste high temperature sintering, and described pad (4) is reinforced with U-shaped copper-nickel alloy sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320745460.8U CN203587919U (en) | 2013-11-22 | 2013-11-22 | Heating uniformity improving device for specially-shaped liquid crystal display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320745460.8U CN203587919U (en) | 2013-11-22 | 2013-11-22 | Heating uniformity improving device for specially-shaped liquid crystal display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203587919U true CN203587919U (en) | 2014-05-07 |
Family
ID=50585813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320745460.8U Expired - Lifetime CN203587919U (en) | 2013-11-22 | 2013-11-22 | Heating uniformity improving device for specially-shaped liquid crystal display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203587919U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110196507A (en) * | 2019-06-21 | 2019-09-03 | 中航华东光电有限公司 | Heater for special-shaped liquid crystal display |
| CN110262110A (en) * | 2019-07-16 | 2019-09-20 | 中航华东光电有限公司 | Uniformly heated abnormity LCD MODULE |
-
2013
- 2013-11-22 CN CN201320745460.8U patent/CN203587919U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110196507A (en) * | 2019-06-21 | 2019-09-03 | 中航华东光电有限公司 | Heater for special-shaped liquid crystal display |
| CN110196507B (en) * | 2019-06-21 | 2021-11-26 | 中航华东光电有限公司 | Heater for special-shaped liquid crystal display screen |
| CN110262110A (en) * | 2019-07-16 | 2019-09-20 | 中航华东光电有限公司 | Uniformly heated abnormity LCD MODULE |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |
|
| CX01 | Expiry of patent term |