A special-shaped liquid crystal screen assembly with low temperature uniform heating function

Abstract

The invention discloses a special-shaped liquid crystal panel assembly with a low-temperature uniform heating function, which comprises: a functional glass plate, a special-shaped liquid crystal display screen and a special-shaped heater connected sequentially from top to bottom; the special-shaped heater includes: ITO glass, a main electrode and an auxiliary electrode ; The ITO glass is a regular polygon, and the length of the main electrode is equal to the side length of the ITO glass, and the length of the auxiliary electrode is 1 / 6‑1 / 4 of the side length of the ITO glass. The auxiliary electrodes form the auxiliary electrode group, and the main electrode group and the auxiliary electrode group are arranged at each corner of the ITO glass at intervals, and the two opposite main electrode groups are respectively connected with aviation wires, one aviation wire is connected to the power supply, and the other aviation wire grounded. The special-shaped liquid crystal screen assembly overcomes the heaters in the prior art. When heated at a low temperature, the response speed around the display module is slower than that in the middle area, tailing appears on the four sides of the screen, and the temperature difference is too large.

Description

technical field [0001] The invention relates to the field of liquid crystal screen components, in particular to a special-shaped liquid crystal screen component with low-temperature uniform heating function. Background technique [0002] The working environment of the airborne liquid crystal display module is harsh and complex, so it requires a wide operating temperature range. Due to the limitation of the physical characteristics of the liquid crystal material itself, when the temperature drops to -20°C or even lower, the performance of the electric field to control the liquid crystal deflection decreases. The response time becomes longer and the contrast ratio decreases, resulting in abnormal display function or even failure. In the special display field, the ambient temperature of the display module is high, and the lower limit of the low temperature may be as low as -45°C, at which point the liquid crystal molecules are almost "frozen" in place and opaque. In this envir...

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Problems solved by technology

[0005] In view of the above technical problems, the purpose of the present invention is to overcome the conventional display modules in the prior art that mostly use rectangular or square heaters, and use a pair of parallel electrode control to obtain a more ideal heating effect, but the surrounding temperature will be lower when it is working. Lower than the central temperature, when heated at low temperature, the response speed around the display module will be slower than that in the middle area, and tailing will appear on the four sides of the screen. When the temperature difference is too large and the heater is too thin, the heater may even crack. The special-shaped liquid crystal display module with low-temperature uniform heating function can be used for airborne special-shaped liquid crystal display modules, especially the liquid crystal display modules with a circular effective display area

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