Passive drive liquid crystal display device

Abstract

The invention provides a passive drive liquid crystal display device comprising a first base plate and a second base plate which are arranged oppositely, a liquid crystal layer located between the two base plates, a color filter coating located on the second base plate, a second transparent conducting layer located on the color filter coating and a first transparent conducting layer located on the first base plate, wherein both the first transparent conducting layer and the second transparent conducting layer are provided with at least one class of pattern electrodes opposite to each other. The color filter coating comprises a red filter, a green filter and a blue filter which are lined repeatedly and periodically, and the pattern electrodes of the first transparent conducting layer or the second transparent conducting layer comprise sub-electrodes lined periodically, wherein the sub-electrodes correspond to at least one of the red filter, the green filter and the blue filter. Under the action of driving voltage applied to the pattern electrodes, the liquid crystal display device displays a plurality of color areas which correspond to at least one class of pattern electrodes and have a certain color. By utilizing the color filter coating to display fixed areas in a colorful mode, the invention can avoid color lump interference and form uniform ground color.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a passively driven liquid crystal display device capable of realizing regional color display. Background technique [0002] As a flat panel display, liquid crystal display (LCD) has many advantages such as clear and accurate image, thin thickness, light weight, no radiation, low energy consumption and low working voltage, and has been widely used in various fields. Generally, a liquid crystal display has two substrates containing electrodes, and a liquid crystal layer arranged between the two substrates. The electric field intensity applied to the liquid crystal layer is controlled by the electrodes on the two substrates to control the deflection of the liquid crystal molecules, thereby adjusting the intensity of the incident light. Transmittance, in order to control the brightness and darkness of display pixels. [0003] Liquid crystal displays can be divided int...

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Problems solved by technology

[0007] However, the problem is that under the illumination of the white backlight of the above-mentioned LCD, the dark field area (including the area without display function) on the entire liquid crystal display will also pass part of the light, so that the dark field area can also display a certain amount of light. The color of the brightness causes the background color of the entire display to be uneven, which affects the color display effect of the display. Moreover, this phenomenon is more serious at the observation position with a large viewing angle.

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