Vehicle-mounted center control display unit provided with double layers of FPC (flexible printed circuit) backlights

Abstract

The invention discloses a vehicle-mounted center control display unit provided with double layers of FPC (flexible printed circuit) backlights. The vehicle-mounted center control display unit comprises a rear cover, a backlight module, a liquid crystal display panel and a surface frame, wherein the backlight module comprises an FPC, a light guide plate and a connecting finger pad, a first light emitting unit and a second light emitting unit are symmetrically arranged on the FPC and are connected in parallel; the FPC is folded and bonded with the central axis serving as the fold line, so that the first light emitting unit and the second light emitting unit are arranged back to back; a light incoming surface is formed by one side edge of the light guide plate, the FPC after folding forming is fixed in the rear cover and close to the light incoming surface, and accordingly, the light outgoing directions of the first light emitting unit and the second light emitting unit point to the light incoming surface directly; the second light emitting unit can serve as a standby backlight to cope with an emergency, the first light emitting unit and the second light emitting unit can be switched for use, and accordingly, the vehicle-mounted center control display unit has the high practicability and the good use effect.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a vehicle-mounted central control display unit with a double-layer FPC backlight source. Background technique [0002] In the vehicle-mounted central control display unit in the prior art, the backlight display part on the back of the liquid crystal panel generally includes an FPC flexible board, a light-emitting unit connected to the FPC flexible board, and a backlight module containing a light guide plate for guiding light. The display part is almost the same as the backlight of the traditional mobile phone LCD panel and the backlight of the tablet computer LCD panel, and its light-emitting units are generally arranged in a strip structure at the light-incident surface formed by the side of the corresponding light guide plate. This type Although the light-emitting unit of the present invention has been widely used, it still has certain defects and deficiencies. [0003] Speci...

AI Technical Summary

Problems solved by technology

[0003] Specifically, on the one hand, when the corresponding light-emitting unit is faulty or damaged due to the circuit, the entire backlight display part will be damaged, and the bright light cannot be effectively output to the corresponding liquid crystal panel, so that the corresponding liquid crystal panel cannot display bright light. And cause the whole machine to be paralyzed and unable to work, and then, when there is an emergency, such as temporarily needing navigation and not having available auxiliary navigation equipment such as a smart phone, it is impossible to respond urgently, which will cause inconvenience to the car owner. On the one hand, the corresponding light-emitting unit has a single color tone, so that only a single color of light can be introduced into the corresponding light guide plate, and then the corresponding liquid crystal panel can be lit, and no additional lights of other colors can be added, so that it cannot meet the needs of users. Experience and Pleasure

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