Automobile backsight device and display thereof

Abstract

The invention discloses an automobile backsight device and a display thereof, which is used for realizing high-brightness displaying effect. As to the physical hierarchical structure, the display sequentially comprises a first polarizing plate, a glass liquid crystal unit, a second polarizing plate, a brightness enhancement film, at least a diffusion film, a backlight plate and a heat dissipation plate which are constrained on a framework. The hierarchy distribution of the display leads the brightness to be ranging from 3000cd / m<2> to 8000cd / m<2>; therefore, when being combined with an anti-glare mirror with luminousness being 12-20%, the display can ensure the vision of a driver so that the driver can not only see information displayed on the display, but also see objects behind the automobile reflected by the anti-glare mirror.

Description

【Technical Field】 [0001] The invention relates to an automobile rear-view device with anti-glare function and a built-in display. 【technical background】 [0002] The CN2558550Y patent announcement on July 1, 2002, relates to a dual-purpose rear-view display mirror, which combines the display with a video source such as a visual reversing radar by installing a display behind the mirror group with anti-glare function The video interface is connected to achieve the effect of allowing the driver to obtain a wide angle and wide field of view through the lens set, and other information related to the video source, such as the distance of the back collision, the current speed or the rear image, etc., through the built-in display. Kill two birds with one stone. [0003] Since then, the related technologies in this field have been continuously innovated over the years. Various manufacturers have improved this rear-view display dual-use mirror from many aspects, each with its own strengths...

AI Technical Summary

Problems solved by technology

[0004] Although people in the industry are all making continuous efforts, this kind of automotive rearview device with anti-glare function still cannot overcome the following deficiencies:

[0006] Secondly, taking the current TFT display with side backlight technology as an example, assuming that the light transmittance of the anti-glare mirror is 6%, if the reflective layer that blocks the display is not removed, the brightness of the display outside the anti-glare mirror is required to reach 1000cd / m 2 , then, the brightness of the TFT display itself should reach about 16667cd / m 2 , the backlight of this TFT display should reach 277783cd / m 2 , the system is large and unstable, and it is also difficult to implement;

[0007] Secondly, the deep-seated reason is that the lack of brightness processing technology of various known liquid crystal displays is the key to the damage to the integrity of the anti-glare mirror. The liquid crystal displays on the market generally use side backlight technology, and lack corresponding supporting improvements such Light transmittance and brightness processing, etc., such as the above-mentioned CN2828861Y patent announcement obviously lacks consideration in this regard and cannot significantly improve the corresponding effect

Images