CN211293512U - Liquid crystal display module working at low temperature - Google Patents
Liquid crystal display module working at low temperature Download PDFInfo
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- CN211293512U CN211293512U CN201922353908.1U CN201922353908U CN211293512U CN 211293512 U CN211293512 U CN 211293512U CN 201922353908 U CN201922353908 U CN 201922353908U CN 211293512 U CN211293512 U CN 211293512U
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Abstract
The utility model discloses a liquid crystal display module of low temperature work relates to electronic components technical field. The thermal insulation device comprises a device main body with a display groove, wherein thermal insulation fabric is laid in the display groove of the device main body, a glass cover plate is arranged at the opening of the display groove of the device main body, an ITO heating film is arranged in the display groove of the device main body, the ITO heating film is tightly attached to the glass cover plate, and two heating electrode openings are formed in the ITO heating film. The ITO conductive film glass is used as a cover plate for heating, and the normal working temperature of the TFT liquid crystal display screen of the instrument is kept. The transparent conductive film (ITO) glass has the advantages of high light transmittance, wide working voltage bandwidth, large film hardness, stable performance and the like, the ITO is an N-type oxide semiconductor-indium tin oxide, and an ITO film, namely an indium tin oxide semiconductor transparent conductive film, generally has two performance indexes: electrical resistivity and light transmittance. As the nano indium tin metal oxide, the nano indium tin oxide has good conductivity and transparency.
Description
Technical Field
The utility model relates to an electronic components technical field specifically is a liquid crystal display module assembly of low temperature work.
Background
The TFT liquid crystal display screen has the characteristics of low power consumption, high definition, long service life, light weight, good optical property and the like, is an ideal display device at present, and is widely applied to various instruments and meters.
The chinese translated name of TFT LCD is called thin film transistor liquid crystal display, which is a display using thin film transistors to generate voltage to control liquid crystal turning. Some instruments are required to normally work in a wider temperature range, the commonly required working temperature range is-55 ℃ to 70 ℃, the liquid crystal display industry develops through technology for many years, and the commonly used liquid crystal material with reliable temperature is developed at present and has the working temperature range of-20 ℃ to 70 ℃.
If the temperature is low to a certain degree, the liquid crystal material becomes viscous, the response speed becomes slow, and the trailing phenomenon of the dynamic image occurs or even the dynamic image cannot be displayed; if the temperature is too low, the liquid crystal state disappears and becomes crystalline.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a liquid crystal display module assembly of low temperature work can satisfy the instrument that will work under the low temperature condition with ordinary TFT liquid crystal display, lowers the cost.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a liquid crystal display module assembly of low temperature work, is including the equipment main part that has the display flume, cold-proof fabric has been laid to the display flume of equipment main part, the display flume opening part of equipment main part sets up the glass apron, be provided with the ITO heating film in the display flume of equipment main part, the ITO heating film closely pastes together with the glass apron, be provided with two heating electrode mouths on the ITO heating film, be provided with liquid crystal display glass in the display flume of equipment main part, liquid crystal display glass glues through the frame and pastes together, the inside of equipment main part display flume is fixed with the FPC circuit board, FPC circuit board and equipment main part's work mainboard electric connection, one side that ITO heating film was kept away from to liquid crystal display glass is fixed with backlight module.
Preferably, the outer layer of the thermal fabric is made of an environment-friendly far infrared composite high-efficiency fiber material for the Teflon inner core.
Preferably, the heating electrode port is embedded in a side wall of the display slot of the device body.
Preferably, the glass cover plate and the liquid crystal display glass are spaced by 0.3 CM.
The utility model provides a liquid crystal display module assembly of low temperature work. The method has the following beneficial effects:
(1) the back backlight of the liquid crystal display module is wrapped with the warm-keeping fabric. The outer layer of the thermal fabric is made of Teflon and has an extremely surface active coating, and the thermal fabric is waterproof, breathable, anti-aging, corrosion-resistant and antistatic. The environment-friendly far infrared composite high-efficiency fiber material for the inner core has the advantages of tensile flexibility, corrosion resistance, good heat-conducting property and high heat conversion efficiency. When the temperature detector detects that the internal temperature of the instrument is lower than minus 10 ℃, the system starts to electrify the ITO heating film, the thermal fabric and start to heat, and the liquid crystal of the liquid crystal display module is ensured to be in the working temperature range. Ensuring normal display; because the front side of the liquid crystal display screen is provided with the ITO heating film to provide heat, and the back side of the liquid crystal display screen is provided with the thermal fabric to provide heat, the whole instrument is well sealed, the heat loss is small, and the instrument can work for a longer time by using the same battery.
Drawings
FIG. 1 is a schematic structural view of an ITO heating film of the present invention;
FIG. 2 is a sectional view of the structure of the present invention;
in the figure: 1 equipment main part, 2 cold-proof fabrics, 3 glass apron, 4ITO heating film, 5 heating electrode mouth, 6 frame glues, 7 liquid crystal display glass, 8FPC circuit board, 9 backlight module.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a liquid crystal display module assembly of low temperature work, is including the equipment main part 1 that has the display slot, including modules such as temperature detector and work mainboard. The insulation glass is characterized in that a thermal fabric 2 is laid in a display groove of the equipment main body 1, a glass cover plate 3 is arranged at an opening of the display groove of the equipment main body 1, an ITO heating film 4 is arranged in the display groove of the equipment main body 1, the ITO heating film 4 is closely attached to the glass cover plate 3, two heating electrode ports 5 are arranged on the ITO heating film 4, liquid crystal display glass 7 is arranged in the display groove of the equipment main body 1, the liquid crystal display glass 7 is attached together through frame glue 6, the frame glue is used for attaching the cover plates 1-3 together, and a space of 0.3 is formed between the glass cover plate 3 and the liquid crystal display glass 7. An FPC circuit board 8 is fixed inside the display groove of the equipment main body 1, the circuit board is connected to a working main board of an instrument, and the main board controls and displays related information and images. And a backlight module 9 is fixed on one side of the liquid crystal display glass 7, which is far away from the ITO heating film 4. The backlight module 9 provides a light source because the TFT LCD itself does not emit light.
The ITO conductive film glass is used as a cover plate for heating, and the normal working temperature of the TFT liquid crystal display screen of the instrument is kept. The transparent conductive film ITO glass has the advantages of high light transmittance, wide working voltage bandwidth, large film hardness, stable performance and the like, the ITO is an N-type oxide semiconductor-indium tin oxide, and an ITO film, namely an indium tin oxide semiconductor transparent conductive film, generally has two performance indexes: electrical resistivity and light transmittance. As the nano indium tin metal oxide, the nano indium tin oxide has good conductivity and transparency.
The working principle is as follows: an ITO heating film is attached to the cover plate, and a warm-keeping fabric is wrapped behind the liquid crystal display module in a backlight mode. The outer layer of the thermal fabric is made of Teflon and has an extremely surface active coating, and the thermal fabric is waterproof, breathable, anti-aging, corrosion-resistant and antistatic. The environment-friendly far infrared composite high-efficiency fiber material for the inner core has the advantages of tensile flexibility, corrosion resistance, good heat-conducting property and high heat conversion efficiency. When the temperature detector detects that the internal temperature of the instrument is lower than minus 10 ℃, the system starts to electrify the ITO heating film, the thermal fabric and start to heat, and the liquid crystal of the liquid crystal display module is ensured to be in the working temperature range. Ensuring normal display; because the front side of the liquid crystal display screen is provided with the ITO heating film to provide heat, and the back side of the liquid crystal display screen is provided with the thermal fabric to provide heat, the whole instrument is well sealed, the heat loss is small, and the instrument can work for a longer time by using the same battery.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (4)
1. The utility model provides a liquid crystal display module of low temperature work, includes equipment main part (1) that has the display slot, its characterized in that: a warm-keeping fabric (2) is laid in the display groove of the equipment main body (1), a glass cover plate (3) is arranged at the opening of the display groove of the equipment main body (1), an ITO heating film (4) is arranged in a display groove of the equipment main body (1), the ITO heating film (4) is tightly adhered to the glass cover plate (3), two heating electrode openings (5) are arranged on the ITO heating film (4), the display groove of the equipment main body (1) is internally provided with liquid crystal display glass (7), the liquid crystal display glass (7) is attached together through frame glue (6), an FPC circuit board (8) is fixed inside the display groove of the equipment main body (1), the FPC circuit board (8) is electrically connected with a working main board of the equipment main body (1), and a backlight module (9) is fixed on one side of the liquid crystal display glass (7) far away from the ITO heating film (4).
2. The liquid crystal display module of claim 1, wherein: the outer layer of the thermal fabric (2) is made of an environment-friendly far infrared composite high-efficiency fiber material for a Teflon inner core.
3. The liquid crystal display module of claim 1, wherein: and a 0.3CM distance is reserved between the glass cover plate (3) and the liquid crystal display glass (7).
4. The liquid crystal display module of claim 1, wherein: the heating electrode opening (5) is embedded in the side wall of the display groove of the equipment main body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922353908.1U CN211293512U (en) | 2019-12-24 | 2019-12-24 | Liquid crystal display module working at low temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922353908.1U CN211293512U (en) | 2019-12-24 | 2019-12-24 | Liquid crystal display module working at low temperature |
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| Publication Number | Publication Date |
|---|---|
| CN211293512U true CN211293512U (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922353908.1U Active CN211293512U (en) | 2019-12-24 | 2019-12-24 | Liquid crystal display module working at low temperature |
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| CN (1) | CN211293512U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113194612A (en) * | 2021-04-27 | 2021-07-30 | 黄冬云 | Method for repairing electronic display screen circuit by using ITO electrode |
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2019
- 2019-12-24 CN CN201922353908.1U patent/CN211293512U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113194612A (en) * | 2021-04-27 | 2021-07-30 | 黄冬云 | Method for repairing electronic display screen circuit by using ITO electrode |
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