CN113970858A - Temperature difference resistant liquid crystal display - Google Patents
Temperature difference resistant liquid crystal display Download PDFInfo
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- CN113970858A CN113970858A CN202111282179.0A CN202111282179A CN113970858A CN 113970858 A CN113970858 A CN 113970858A CN 202111282179 A CN202111282179 A CN 202111282179A CN 113970858 A CN113970858 A CN 113970858A
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- 239000000017 hydrogel Substances 0.000 claims abstract description 14
- 238000002834 transmittance Methods 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 238000005485 electric heating Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 11
- 230000001105 regulatory effect Effects 0.000 claims abstract description 10
- 230000005611 electricity Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/15—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on an electrochromic effect
- G02F1/163—Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor
Abstract
The invention relates to a temperature difference resistant liquid crystal display screen, and belongs to the technical field of liquid crystal display screens. The technical problem that a liquid crystal display screen used in an environment with high humidity and low temperature in the prior art is prone to generating a fog surface is solved. The temperature difference resistant liquid crystal display screen comprises a liquid crystal display screen body, a humidity sensor, an acquisition module, a controller and a power supply; the liquid crystal display screen is sequentially covered with an adjusting layer, an electric heating layer and an anti-fog layer; the material of the regulating layer is electrochromic hydrogel, the transmittance of the electrochromic hydrogel is over 90% under the action of voltage, and the transmittance of the electrochromic hydrogel is 75-80% under the action of no voltage; the electric heating layer is made of transparent conductive heating film. This temperature difference resistant liquid crystal display can effectively solve the liquid crystal display surface because the technical problem of the big fog face that easily appears of the difference in temperature, and the fog face is effective fast, possesses fine temperature difference resistant effect, is particularly useful for outdoor liquid crystal display.
Description
Technical Field
The invention belongs to the technical field of liquid crystal display screens, and particularly relates to a temperature difference resistant liquid crystal display screen.
Background
Liquid Crystal Displays (LCDs) are one type of flat panel displays. The screen display device is used for screen display of televisions and computers. The display screen has the advantages of low power consumption, small size and low radiation.
An active matrix liquid crystal display panel is constructed by sealing a Twisted Nematic (TN) type liquid crystal material between two glass substrates. The upper glass substrate near the display screen is deposited with red, green and blue (RGB) three-color filters (or called color filter films), a black matrix and a common transparent electrode. A lower glass substrate (a substrate farther from the display screen) is provided with a Thin Film Transistor (TFT) device, a transparent pixel electrode, a storage capacitor, a gate line, a signal line, and the like. And preparing orientation films (or orientation layers) at the inner sides of the two glass substrates to ensure that liquid crystal molecules are aligned. A liquid crystal material is poured between the two glass substrates, and spacers (spacers) are distributed to ensure the uniformity of the gap. The periphery is bonded by the frame sealing glue to play a role in sealing; and connecting the common electrodes of the upper and lower glass substrates by means of a silver paste dispensing process. When current is passed through the liquid, the crystals will rearrange so that light cannot pass through them. Thus, each crystal acts like a louver, both allowing light to pass through and blocking light.
The surface of the liquid crystal display is a glass substrate, so that in an environment with high humidity and low temperature, the interior of the liquid crystal display is heated after the liquid crystal display is started, the temperature of the surface of the liquid crystal display is increased, and the surface of the liquid crystal display and the surrounding cold and wet air can be obtained. Such problems are more likely to occur particularly in liquid crystal display panels used outdoors.
Disclosure of Invention
The invention provides a temperature difference resistant liquid crystal display screen, aiming at solving the technical problem that a liquid crystal display screen used in an environment with high humidity and low temperature is easy to have a fog surface in the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the invention provides a temperature difference resistant liquid crystal display screen which comprises a liquid crystal display screen body, a humidity sensor, an acquisition module, a controller and a power supply, wherein the humidity sensor is arranged on the liquid crystal display screen body;
the liquid crystal display screen is sequentially covered with an adjusting layer, an electric heating layer and an anti-fog layer; the material of the regulating layer is electrochromic hydrogel, the transmittance of the electrochromic hydrogel is over 90% under the action of voltage, and the transmittance of the electrochromic hydrogel is 75-80% under the action of no voltage; the electric heating layer is made of a transparent conductive heating film;
the humidity sensor is fixed on the outer surface of the anti-fog layer and connected with the acquisition module to acquire the humidity on the outer surface of the anti-fog layer in real time;
the acquisition module is connected with the controller and is used for acquiring humidity data of the humidity sensor and transmitting the humidity data to the controller;
the power supply is connected with the adjusting layer and the heating layer and supplies voltage to the adjusting layer and the heating layer;
the controller with the regulation layer, generate heat the layer and all be connected, the controller receives the humidity data of collection module transmission, judges humidity and the relation of predetermineeing humidity, if humidity more than or equal to predetermines the temperature, controller control power supply provides voltage for the regulation layer with the layer that generates heat, the regulation layer receives the electricity and discolours, the transmissivity increases to more than 90%, the electric heat layer receives the electricity and generates heat, if humidity is less than predetermineeing the temperature, controller control power supply stops to provide voltage for the regulation layer with the layer that generates heat.
Further, the thickness of the adjusting layer is 200-300 microns.
Further, the thickness of the electric heating layer is 100-200 microns.
Further, the thickness of the antifogging layer is 100-200 microns
The principle of the invention is as follows: according to the temperature difference resistant liquid crystal display screen, on one hand, the outer surface humidity of the liquid crystal display screen is acquired through the temperature sensor, if the fog is found to be heavy, the temperature of the heating layer is adjusted through the controller, the outer surface temperature of the liquid crystal display screen is improved, the fog is dispersed, and meanwhile, when the fog is sensed to be heavy, the controller controls the transmittance of the adjusting layer, and the brightness of the liquid crystal display screen is improved; on the other hand, the adjusting layer is made of an electroluminescent hydrogel material, has low transmittance when not powered on, can effectively solve the problem of light pollution of an outdoor liquid crystal display screen, has good water absorption and storage capacity, and can absorb moisture if the problem of poor sealing is caused.
Compared with the prior art, the invention has the beneficial effects that:
the temperature difference resistant liquid crystal display screen can effectively solve the technical problem that fog surfaces are easy to appear on the surface of the liquid crystal display screen due to large temperature difference, is quick and effective in fog surface removal, has a good temperature difference resistant effect, and is particularly suitable for outdoor liquid crystal display screens.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the detailed description will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
FIG. 1 is a schematic structural diagram of a temperature difference resistant LCD panel according to the present invention;
FIG. 2 is a control schematic diagram of a temperature difference resistant LCD screen according to the present invention;
in the figure, the device comprises a liquid crystal display screen body 1, a humidity sensor 2, a collection module 3, a controller 4, a power supply 5, a regulation layer 6, an electric heating layer 7, an antifogging layer 8 and a controller.
Detailed Description
For a further understanding of the invention, preferred embodiments of the invention are described below in conjunction with the detailed description, but it is to be understood that the description is intended to further illustrate the features and advantages of the invention and not to limit the claims to the invention.
As shown in fig. 1-2, the temperature difference resistant liquid crystal display screen of the present invention includes a liquid crystal display screen body 1, a humidity sensor 2, an acquisition module 3, a controller 4 and a power supply 5.
Wherein, liquid crystal display body 1 covers regulating layer 6, electric heat layer 7 and antifog coating 8 outward in proper order, and liquid crystal display body 1 covers regulating layer 6, electric heat layer 7 and antifog coating 8 accessible outward edge encapsulation in proper order outward and fixes.
The material of the adjusting layer 6 is electrochromic hydrogel, the transmittance of the electrochromic hydrogel is increased to over 90% under the action of voltage, and the transmittance is 75-80% under the action of no voltage. The thickness of the adjustment layer 6 is preferably 200-300 μm. The electroluminescent material is not particularly limited as long as the adjustment layer 6 is allowed to undergo electrochromic, the transmittance is increased to 90% or more, and the transmittance is 75 to 80% under natural light, and can be obtained by a commercially available method or a method known to those skilled in the art.
The material of electric heat layer 7 is transparent conductive heating film, and transparent conductive heating film includes transparent conducting material and two transparent plastic layers, and transparent conducting material presss from both sides between two transparent plastic layers, various plastic film such as material PET or PC of plastic layer, for example CNT mixes transparent conductive film. The thickness of the electric heating layer 7 is 100-200 microns. The transparent conductive heating film comprises a transparent conductive material and two transparent plastic layers, wherein the conductive material is clamped between the two transparent plastic layers, such as a CNT (carbon nanotube) mixed transparent conductive film and various plastic films such as PET (polyethylene terephthalate) or PC (polycarbonate) of the plastic layers.
The antifogging layer 8 is made of an antifogging film. Humidity transducer 2 is fixed on the surface of antifogging layer 8 of liquid crystal display 1 body, and humidity transducer 2 is connected with collection module 3, gathers the humidity of antifogging layer 8's surface in real time. The thickness of the anti-fog layer 8 is preferably 100-200 microns, and the anti-fog film is the prior art, is not particularly limited, can achieve the anti-fog effect, and can achieve the anti-fog effect of the inventor.
Acquisition module 3 is connected with controller 4, and acquisition module 3 implements the humidity data of gathering humidity sensor 2 and transmits for controller 4.
The power supply 5 is connected with the adjusting layer 6 and the electric heating layer 7, and the power supply 5 provides voltage for the adjusting layer 6 and the electric heating layer 7. The power supply 5 is not particularly limited and may employ conventional techniques in the art, such as a 2-4V miniature power supply.
Controller 4 and regulating layer 6, electric heat layer 7 is all connected, controller 4 receives the humidity data of collection module 3 transmission, judge humidity and the relation of predetermineeing humidity, if humidity more than or equal to predetermines the temperature, controller 4 control power 5 provides voltage for regulating layer 6 and electric heat layer 7, regulating layer 6 receives the electricity and discolours, the transmissivity increases to more than 90%, electric heat layer 7 receives the electricity and generates heat, if humidity is less than predetermineeing the temperature, controller 4 control power 5 stops to provide voltage for regulating layer 6 and electric heat layer 7, the transmissivity of regulating layer 6 resumes to 75-80%, electric heat layer 7 resumes natural temperature gradually. The acquisition module 3, the controller 4 and the power supply 5 may be inherited on a circuit board.
According to the temperature difference resistant liquid crystal display screen, on one hand, the outer surface humidity of the liquid crystal display screen is acquired through the temperature sensor 2, if the fog is found to be heavy, the temperature of the heating layer 7 is adjusted through the controller 4, the outer surface temperature of the liquid crystal display screen is improved, the fog is dispersed, and meanwhile, when the fog is sensed to be heavy, the controller 4 controls the transmittance of the adjusting layer 6, and the brightness of the liquid crystal display screen is increased; on the other hand, the adjusting layer 6 is made of an electroluminescent hydrogel material, has low transmittance when not electrified, can effectively solve the problem of light pollution of an outdoor liquid crystal display screen, has good water absorption and storage capacity, can absorb moisture if the problem of poor sealing is caused, and can properly reduce the surface heat of the display screen during normal use due to the fact that the hydrogel contains water and the specific heat capacity of the water is large; on the other hand, the antifogging film 8 is arranged on the surface of the liquid crystal display screen, so that the adhesion of water molecules can be effectively reduced, and the possibility of generating a fog surface is reduced.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. A temperature difference resistant liquid crystal display screen is characterized by comprising a liquid crystal display screen body (1), a humidity sensor (2), an acquisition module (3), a controller (4) and a power supply (4);
the liquid crystal display screen is sequentially covered with an adjusting layer (6), an electric heating layer (7) and an antifogging layer; the material of the adjusting layer (6) is electrochromic hydrogel, the transmittance of the electrochromic hydrogel is more than 90% under the action of voltage, and the transmittance of the electrochromic hydrogel is 75-80% under the action of no voltage; the electric heating layer (7) is made of a transparent conductive heating film;
the humidity sensor (2) is fixed on the outer surface of the anti-fog layer, and the humidity sensor (2) is connected with the acquisition module (3) and is used for acquiring the humidity of the outer surface of the anti-fog layer in real time;
the acquisition module (3) is connected with the controller (4), and the acquisition module (3) acquires humidity data of the humidity sensor (2) and transmits the humidity data to the controller (4);
the power supply (4) is connected with the adjusting layer (6) and the heating layer, and the power supply (4) supplies voltage to the adjusting layer (6) and the heating layer;
controller (4) and regulation layer (6), the layer that generates heat all is connected, the humidity data of collection module (3) transmission is received in controller (4), judge humidity and the relation of predetermineeing humidity, if humidity more than or equal to predetermines the temperature, controller (4) control power supply (4) provide voltage for regulation layer (6) and the layer that generates heat, regulation layer (6) receive the electricity and change colour, the transmissivity increases to more than 90%, electric heat layer (7) receive the electricity and generate heat, if humidity is less than predetermineeing the temperature, controller (4) control power supply (4) stop providing voltage for regulation layer (6) and the layer that generates heat.
2. The temperature-difference-resistant liquid crystal display screen as claimed in claim 1, characterized in that the thickness of the regulating layer (6) is 200-300 μm.
3. The temperature difference-resistant LCD screen as claimed in claim 1, wherein the thickness of the electrothermal layer (7) is 100-200 μm.
4. The temperature difference-resistant LCD screen as recited in claim 1, wherein the thickness of the anti-fog layer is 100-200 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111282179.0A CN113970858A (en) | 2021-11-01 | 2021-11-01 | Temperature difference resistant liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111282179.0A CN113970858A (en) | 2021-11-01 | 2021-11-01 | Temperature difference resistant liquid crystal display |
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| Publication Number | Publication Date |
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| CN113970858A true CN113970858A (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111282179.0A Pending CN113970858A (en) | 2021-11-01 | 2021-11-01 | Temperature difference resistant liquid crystal display |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006056550A1 (en) * | 2004-11-24 | 2006-06-01 | Siemens Aktiengesellschaft | Electrochromic component comprising an electrolyte-filled hydrogel |
| CN101398551A (en) * | 2007-09-26 | 2009-04-01 | 北京京东方光电科技有限公司 | Flat panel display device with heating structure |
| CN205450498U (en) * | 2016-01-30 | 2016-08-10 | 深圳市时代智光科技有限公司 | A nanometer silver transparent conducting film for LCD screen |
| KR20160117146A (en) * | 2015-03-31 | 2016-10-10 | 삼성전자주식회사 | Outdoor display apparatus |
| CN205720983U (en) * | 2016-01-30 | 2016-11-23 | 深圳市时代智光科技有限公司 | A kind of intelligent liquid-crystal gets rid of mist light modulation film |
| CN108572475A (en) * | 2018-06-09 | 2018-09-25 | 嘉兴市英伦电器科技有限公司 | A kind of super bath LCD display |
| CN209928174U (en) * | 2019-04-29 | 2020-01-10 | 南京银纳新材料科技有限公司 | Anti-electromagnetic interference low-temperature-resistant liquid crystal display screen |
| CN113568235A (en) * | 2021-06-28 | 2021-10-29 | 浙江工业大学 | Electrochromic device based on multifunctional hydrogel electrolyte and preparation method thereof |
-
2021
- 2021-11-01 CN CN202111282179.0A patent/CN113970858A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006056550A1 (en) * | 2004-11-24 | 2006-06-01 | Siemens Aktiengesellschaft | Electrochromic component comprising an electrolyte-filled hydrogel |
| CN101398551A (en) * | 2007-09-26 | 2009-04-01 | 北京京东方光电科技有限公司 | Flat panel display device with heating structure |
| KR20160117146A (en) * | 2015-03-31 | 2016-10-10 | 삼성전자주식회사 | Outdoor display apparatus |
| CN205450498U (en) * | 2016-01-30 | 2016-08-10 | 深圳市时代智光科技有限公司 | A nanometer silver transparent conducting film for LCD screen |
| CN205720983U (en) * | 2016-01-30 | 2016-11-23 | 深圳市时代智光科技有限公司 | A kind of intelligent liquid-crystal gets rid of mist light modulation film |
| CN108572475A (en) * | 2018-06-09 | 2018-09-25 | 嘉兴市英伦电器科技有限公司 | A kind of super bath LCD display |
| CN209928174U (en) * | 2019-04-29 | 2020-01-10 | 南京银纳新材料科技有限公司 | Anti-electromagnetic interference low-temperature-resistant liquid crystal display screen |
| CN113568235A (en) * | 2021-06-28 | 2021-10-29 | 浙江工业大学 | Electrochromic device based on multifunctional hydrogel electrolyte and preparation method thereof |
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