Display device, control method, vehicle display instrument and segment code liquid crystal display instrument

Abstract

The invention relates to a display device, a control method, a vehicle display instrument and a segment code liquid crystal display instrument. The display device comprises a liquid crystal display panel, a light filter plate, a display and a background light source, wherein the liquid crystal display panel is arranged on the front side of the display; the liquid crystal display panel is electrically connected with an external controller; the liquid crystal display panel comprises at least one display area and at least one controllable light transmitting area; the light filter plate is arranged on the back side of the display area of the liquid crystal display panel; the background light source is arranged on the rear side of the light filter plate; the display is arranged on the rear sideof the controllable light transmitting area; under the power-on condition, the whole controllable light transmitting area is in a light transmitting state, so that information displayed by the display can pass through the controllable light transmitting area; and under the power-off condition, the display area and the controllable light transmitting area are in non-light transmitting states. Thedisplay device is simple in structure, is obvious and attractive in visual effect, and can prevent eye fatigue of a user due to long-term watching.

Description

technical field [0001] The invention relates to a display device and a control method of the display device. The invention also relates to a vehicle display instrument. The invention also relates to a segment code liquid crystal display instrument with a transparent window. Background technique [0002] With the increasing intelligence and entertainment of vehicles, car instrumentation is particularly important. It is necessary to realize the professionalization and comprehensive display of vehicle information as soon as possible and better, so as to achieve accurate and clear display. The current car The text, scale lines, and indication positions of the instrument panel are light-transmitting areas, and the rest of the area is usually sprayed with black paint with good shading effect, and a light-emitting device is placed behind the instrument panel. After power-on, the entire dial is illuminated, and other parts are not transparent. Due to the large color difference bet...

AI Technical Summary

Problems solved by technology

[0002] As vehicles become more and more intelligent and entertaining, car instrumentation is particularly important. It is necessary to realize the professionalization and comprehensive display of vehicle information as soon as possible and better, so as to achieve accurate and clear display. The current car The text part, scale line, and indication positions of the instrument panel are light-transmitting areas, and the rest of the area is usually sprayed with black paint with good shading effect. A light-emitting device is placed behind the instrument panel. After power-on, the entire dial is illuminated, and other parts are not transparent. Due to the large color difference between the shading part and the light-transmitting part, the effect of the displayed light atmosphere is not satisfactory. The driver's eyes are prone to fatigue when staring at the instrument panel for a long time

In addition, if the display area of ​​the entire instrument panel is displayed by a color LCD screen, the shape of the instrument panel is too irregular compared to the rectangular shape of a conventional color LCD screen, which will lead to a serious waste of color LCD screens on the one hand. On the other hand, there are problems such as cutting difficulties or taking up a large space, which will cause the cost to remain high

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