CN213023847U

CN213023847U - Ultra-low temperature rapid display liquid crystal screen with heating electrode

Info

Publication number: CN213023847U
Application number: CN202022357246.8U
Authority: CN
Inventors: 郑俊涛; 郑晓开
Original assignee: Shenzhen Zhengjinjing Photoelectric Co ltd
Current assignee: Shenzhen Zhengjinjing Photoelectric Co ltd
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-04-20
Anticipated expiration: 2030-10-21

Abstract

The utility model discloses an ultra-low temperature fast display liquid crystal screen with heating electrodes, which comprises a structure main body, wherein the structure main body comprises a front cover, a rear cover and a fixed frame arranged between the front cover and the rear cover, a plurality of interfaces are arranged outside the fixed frame, the front cover is sequentially connected with a color filter, a liquid crystal and a diffusion plate from top to bottom, a backlight source is arranged in the fixed frame, the rear cover is sequentially connected with a heating component, a main control panel and a rear frame from bottom to top, the surface of the color filter is provided with a flexible protective film, one end of the liquid crystal is connected with a polaroid and an IC circuit board, a heating cavity is arranged in the heating component, the heating cavity is provided with a plurality of heating electrode rods and conductive solution, the utility model heats through the heating electrodes on the built-in heating components, and realizes heating more quickly under the low temperature environment, the display can operate effectively and quickly.

Description

Ultra-low temperature rapid display liquid crystal screen with heating electrode

Technical Field

The utility model relates to a LCD screen technical field with heating electrode specifically is an ultra-low temperature fast display LCD screen with heating electrode.

Background

Currently, the society enters the information age, and with the continuous development of liquid crystal display technology, the application of the liquid crystal display screen is more and more extensive. The working temperature range of the liquid crystal display screen is generally between 0 ℃ and 50 ℃, and the performance can reach minus 30 ℃ to 80 ℃. Due to the phase transition temperature limitation of the liquid crystal material and the influence of the liquid crystal viscosity, the ultra-low temperature environment is difficult to adapt. When the working environment temperature of the liquid crystal display screen is lower than a certain temperature, the liquid crystal material becomes viscous, the response speed can be obviously slowed down, the trailing phenomenon is easy to occur when dynamic images are displayed or images are switched, and even the images are not displayed when the trailing phenomenon is serious. For example, the temperature in the northern hemisphere area is often below-30 ℃, sometimes even below-40 ℃, so that the liquid crystal display screen cannot work normally. Especially for the instrument equipment implementing monitoring display, such as a vehicle-mounted instrument, due to the influence of the ultralow temperature working environment, the display screen switching display content is slow in response, and serious potential safety hazards exist, so that the response speed of the liquid crystal display screen in the ultralow temperature environment is urgently needed to be improved. Although improvements are made in the aspects of liquid crystal materials and manufacturing processes, such as selection of low-viscosity liquid crystal materials, reduction of a liquid crystal cell gap lamp and increase of response time, the response time is still too different from that of a normal temperature environment in an ultralow temperature environment, the current latest technology is to design a metal heating sheet or an ITO heating sheet below a liquid crystal display screen, the metal heating sheet or the ITO heating sheet is connected with a main board to drive and generate heat, and even under an extreme environment with ultralow temperature (such as-40 ℃), the ITO heating sheet actively generates heat, the surface temperature of an LCD can be kept above 0 ℃ or even close to the normal temperature, so that the liquid crystal display screen can normally display. However, in the design, a single ITO glass sheet needs to be added, a silver paste layer is coated on the ITO glass, metal pins are assembled, and then the ITO glass is pressed on the liquid crystal screen, so that the whole thickness of the liquid crystal screen is increased, the structure is very complex, and a gap exists between the liquid crystal screen and the heating sheet, which is not favorable for the light and thin development of a display module and is also not favorable for improving the heating speed and uniform heating; and the cost of the ITO glass is one of three main materials of the liquid crystal display screen, the use of the ITO glass is increased, the production cost is also increased, and meanwhile, a large amount of ionizing radiation can be generated in the working process of the liquid crystal display screen, so that the damage to a human body is large.

SUMMERY OF THE UTILITY MODEL

In order to overcome the deficiencies of the prior art, the utility model provides an ultra-low temperature fast display LCD screen with heating electrode can the effectual problem that the solution background art provided.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides an ultra-low temperature fast display LCD screen with heating electrode, includes the main structure body, the main structure body includes protecgulum, back lid and locates the protecgulum with fixed frame between the back lid, just the fixed frame outside is equipped with a plurality of interfaces, the protecgulum from top to bottom connects gradually and is equipped with color filter, liquid crystal and diffuser plate, be equipped with the backlight in the fixed frame, the back lid is equipped with heater block, main control board and after-frame by supreme connection in proper order down, the color filter surface is equipped with flexible protecting film, liquid crystal one end is connected and is equipped with polaroid and IC circuit board, be equipped with a heating cavity in the heater block, the heating cavity is equipped with a plurality of heating electrode stick and the solution that can electrically conduct, heater block one side is equipped with heating circuit board and connects heating circuit board's wire, heating circuit board is including locating heating circuit board inboard temperature sensor and locating A button.

Particularly, the fixed frame is respectively and fixedly connected with the front cover and the rear cover, and the rear cover is in interference connection with the fixed frame.

Particularly, the heating member shell is transparent, just the heating member is the dismantlement formula structure, the heating circuit board passes through the knob is fixed in the one end of heating member.

In particular, the temperature sensor is connected with the main control board through the lead.

Particularly, one end of the heating electrode bar is connected with the heating circuit board, and the heating electrode bar is of an overhead structure.

Particularly, the rear frame is fixedly connected with the heating component and the main control panel, and the rear frame is in threaded connection with the fixed frame.

Particularly, the top of the rear cover is provided with a lock catch capable of locking the fixed frame, and the lock catch is a resettable push type structure.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model conducts electricity and generates heat through the electrolyte solution filled by the electrode in the internal heating component and the cavity, when the heating electrode bar works in the conductive solution, the heating electrode bar conducts electricity and generates heat under the action of electricity, then the heating function is realized through the glass heat conduction with strong heat conductivity, the heating electrode bar is beneficial to quickly and accurately working under the environment with the temperature lower than the working temperature of the liquid crystal display screen, in addition, the whole thickness is thinner, the locking buckle arranged on the rear cover is fixed through the front cover, the rear cover and the middle fixing frame, then the locking buckle is screwed and connected through the screw, the structure is stable, the protection performance is strong, the invasion of water vapor and dust can be effectively isolated, the protective film with light transmission intensity and electric ionizing radiation prevention is arranged at the position of the liquid crystal display, simultaneously, the temperature sensor on the heating component is electrically connected with the circuit board, the structure can realize automatic temperature induction, and the heating temperature of the heating part is controlled by the control circuit board, so that the constant temperature effect is kept, the heating is prevented from being too high, the ultralow temperature display performance of the liquid crystal screen is greatly improved, and the material cost is also reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an exploded view of the internal structure of the present invention;

FIG. 3 is a schematic view of the heating element of the present invention;

fig. 4 is another schematic structural diagram of the present invention.

Reference numbers in the figures:

1. a front cover; 2. a rear cover; 3. an interface; 4. a front frame; 5. a color filter; 6. a liquid crystal; 7. a polarizer; 8. an IC circuit board; 9. a diffusion plate; 10. a fixed frame; 11. a backlight source; 12. a main control panel; 13. a heating member; 14. a rear frame; 15. a solution; 16. heating the electrode rod; 17. a knob; 18. a wire; 19. heating the circuit board; 20. heating the cavity; 21. a temperature sensor; 22. a protective film; 23. and (5) locking.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-4, the utility model provides an ultra-low temperature fast display liquid crystal display with heating electrode, which comprises a main structure body, the main structure body comprises a front cover 1, a back cover 2 and a fixing frame 10 arranged between the front cover 1 and the back cover 2, and a plurality of interfaces 3 are arranged outside the fixing frame 10, the front cover 1 is sequentially connected with a color filter 5, a liquid crystal 6 and a diffusion plate 9 from top to bottom, a backlight source 11 is arranged in the fixing frame 10, the back cover 2 is sequentially connected with a heating component 13, a main control panel 12 and a back frame 14 from bottom to top, the surface of the color filter 5 is provided with a flexible protective film 22, one end of the liquid crystal 6 is connected with a polarizer 7 and an IC circuit board 8, a heating cavity 20 is arranged in the heating component 13, the heating cavity 20 is provided with a plurality of heating electrode rods 16 and a conductive solution 15, heating block 13 one side is equipped with heating circuit board 19 and connects heating circuit board 19's wire 18, heating circuit board 19 is including locating the inboard temperature sensor 21 of heating circuit board 19 and locating the knob 17 in the heating circuit board 19 outside, this embodiment, heats up the heating through heating block 13 to liquid crystal display, can solve down and use under the low temperature environment and appear the problem that shows delay or do not show the image.

It is further described that the fixing frame 10 is respectively and fixedly connected with the front cover 1 and the rear cover 2, the rear cover 2 is in interference connection with the fixing frame 10, the front cover 1 and the rear cover 2 are screwed by screws of 4.5mm-5mm, then the sealing performance is further enhanced by adopting an interference connection mode, the influence on the work of the display screen caused by the entering of water and dust is prevented, meanwhile, the top of the rear cover 2 is provided with a lock catch 23 capable of locking the fixing frame 10, and the lock catch 23 is a resettable push type structure.

It is further described that the housing of the heating component 13 is transparent, the heating component 13 is of a detachable structure, one end of the heating electrode rod 16 is connected to the heating circuit board 19, the heating electrode rod 16 is of an overhead structure, the heating circuit board 19 is fixed to one end of the heating component 13 through the knob 17, the material adopted by the heating electrode rod 16 is ITO conductive glass, the conductivity is excellent, the manufacturing cost is relatively low, the traditional metal heating rod can be replaced, the heating electrode rod 16 can react with electricity in the conductive solution 15 to generate a large amount of heat, so that the heating effect is realized, the normal use of the display screen in a low-temperature environment is facilitated, the display effect can be quickly realized, meanwhile, the heating circuit board 19 is screwed and fixed through the knob 17, and the structure is guaranteed to be stable, can be conveniently disassembled.

It is further described that the temperature sensor 21 is connected to the main control board 12 through the lead 18, the rear frame 14 is fixedly connected to the heating member 13 and the main control board 12, the rear frame 14 is in threaded connection with the fixing frame 10, the temperature sensor 21 is electrically connected to the heating circuit board 19, the temperature is automatically sensed by the structure, and the heating temperature of the heating member 13 is controlled by the control circuit board, so that a constant temperature effect is maintained, and overheating is prevented.

The specific working principle is as follows: in the using process, the power is supplied through the interface 3 on one side of the fixed frame 10, after the power supply is connected, the heating part 13 and the temperature sensor 21 in the fixed frame operate, when the external working environment temperature is lower than the specified temperature environment of the embodiment, the temperature sensor 21 feeds back the electric signal to the main control panel 12, the heating part 13 heats the inside under the control of the main control panel 12, after the heating part 13 receives the heating instruction, the heating electrode bar 16 arranged in the heating cavity 20 heats, the heating electrode bar 16 performs discharge heating in the conductive solution 15, further the temperature of the display screen is raised, so that the image information can be displayed quickly and accurately when the fixed frame is used in the low-temperature environment, the whole thickness is thin, and the front cover 1, Rear cover 2 and middle fixed frame 10 are fixed at hasp 23 that rear cover 2 set up, then screw through the screw and connect, and its structure is firm, and the protectiveness is strong, can effectively completely cut off the invasion of steam and dust, has set up the pellicle 22 that has the light transmittance, can prevent ionizing radiation in LCD's position, simultaneously, temperature sensor 21 on heater block 13 with heating circuit board 19 is the electricity connection, and the auto-induction temperature can be realized to this structure, through the heating temperature of main control board 12 control heater block 13 to keep the constant temperature effect, prevent to heat too high, promoted the ultra-low temperature display performance of LCD screen greatly, also reduced material cost.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an ultra-low temperature fast display LCD screen with heating electrode which characterized in that: the LED backlight module comprises a structure main body, wherein the structure main body comprises a front cover, a rear cover and a fixed frame arranged between the front cover and the rear cover, a plurality of interfaces are arranged on the outer side of the fixed frame, the front cover is sequentially connected with a color filter, a liquid crystal and a diffusion plate from top to bottom, a backlight source is arranged in the fixed frame, and the rear cover is sequentially connected with a heating component, a main control panel and a rear frame from bottom to top;

the color filter surface is equipped with flexible protective film, liquid crystal one end is connected and is equipped with polaroid and IC circuit board, be equipped with a heating cavity in the heater block, the heating cavity is equipped with a plurality of heating electrode stick and the solution that can electrically conduct, heater block one side is equipped with heating circuit board and connects heating circuit board's wire, heating circuit board is including locating heating circuit board inboard temperature sensor and locating the knob in the heating circuit board outside.

2. The ultra-low temperature fast display liquid crystal panel with heating electrodes as claimed in claim 1, wherein: the fixed frame is respectively fixedly connected with the front cover and the rear cover, and the rear cover is in interference connection with the fixed frame.

3. The ultra-low temperature fast display liquid crystal panel with heating electrodes as claimed in claim 1, wherein: the heating part shell is transparent, just the heating part is the dismantlement formula structure, the heating circuit board passes through the knob is fixed in the one end of heating part.

4. The ultra-low temperature fast display liquid crystal panel with heating electrodes as claimed in claim 1, wherein: the temperature sensor is connected with the main control panel through the lead.

5. The ultra-low temperature fast display liquid crystal panel with heating electrodes as claimed in claim 1, wherein: one end of the heating electrode rod is connected with the heating circuit board, and the heating electrode rod is of an overhead structure.

6. The ultra-low temperature fast display liquid crystal panel with heating electrodes as claimed in claim 1, wherein: the rear frame is fixedly connected with the heating part and the main control panel, and the rear frame is in threaded connection with the fixed frame.

7. The ultra-low temperature fast display liquid crystal panel with heating electrodes as claimed in claim 1, wherein: the top of the rear cover is provided with a lock catch capable of locking the fixed frame, and the lock catch is a resettable push type structure.