Pixel structure of blue-phase liquid crystal display

Abstract

The invention discloses a pixel structure of a blue-phase liquid crystal display. The pixel structure comprises a scanning wire (1), a data wire (2) and a pixel unit (3), wherein a pixel electrode (4) and a first thin film transistor (5) are arranged in the pixel unit (3); a public electrode (9) positioned on the lower side of the pixel electrode (4) and a second thin film transistor (10) driving the public electrode (9) are arranged in the pixel unit (3); the grid (6), source (7) and drain (8) of the second thin film transistor (10) are electrically connected with a public wire (11) and a public electrode (9) which are arranged on the upper side of the scanning wire (1) in parallel as well as the scanning wire (1); and the voltage polarities of the pixel electrode (4) and the public electrode (9) which are positioned in the same pixel unit are opposite. By additionally arranging two public wires with opposite voltage polarities and respective inverted polarity and connecting the thin film transistor with the electrode, array inverted and driving point inverted display can be realized, and the operation voltage is improved by twice to save electricity.

Description

technical field [0001] The invention relates to a pixel structure of a liquid crystal display, in particular to a pixel structure of a blue-phase liquid crystal display capable of providing high driving voltage. Background technique [0002] The blue phase is a liquid crystal phase with a narrow temperature range. The blue phase liquid crystal is isotropic when no voltage is applied, and anisotropic after voltage is applied; according to the positive and negative of the liquid crystal, they are respectively stretched and flattened. Blue-phase liquid crystals are considered to be excellent candidates for next-generation displays because they do not require alignment, have excellent black state display, high wide viewing angles, and a response time of less than 1ms, which is microseconds. The biggest problem now is that the blue-phase liquid crystal requires a very high operating voltage, which is beyond the operating range of aSi devices. By optimizing the pixel design, th...

AI Technical Summary

Problems solved by technology

One of the methods is to make the electrodes wave-shaped, but using this method, the alignment accuracy between the array substrate and the color filter substrate cannot be guaranteed, and it is easy to cause a short circuit between the upper and lower substrates, so that the panel cannot be displayed; the other method is to strengthen the electrodes. The electric field force between the electrodes can be made into various special-shaped structures, but the existing array process is difficult to achieve

Therefore, the above method is more suitable for theoretical research, and the actual process is difficult to achieve

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