Liquid crystal display

Abstract

The invention provides a liquid crystal display, which includes a plurality of first and second pattern elements, and a plurality of first and second auxiliary electrodes. The first and second pattern elements have opposite polarities under the same frame controlled by an inversion driving sequence, and each of the first and second pattern elements has a reflection area and a transmission area. A plurality of first auxiliary electrodes are connected to the first pattern element, and a plurality of second auxiliary electrodes are connected to the second pattern element, wherein each of the first and second pattern elements is respectively covered by the second and the first auxiliary electrodes At least partially surrounded to form a fringing electric field. The present invention utilizes the fringe electric field effect generated by the different polarities of the auxiliary electrode and the pixel electrode to provide a strong liquid crystal molecule dumping force, so as to increase the effective area of ​​the display area and effectively improve the overall light transmittance of the liquid crystal display.

Description

technical field [0001] The present invention relates to a liquid crystal display, especially a liquid crystal display with multi-domain alignment Background technique [0002] It is known that a negative type liquid crystal material with a negative dielectric anisotropy is used to form a liquid crystal alignment method of vertical alignment or homeotropic alignment. When no voltage is applied, the liquid crystal molecules are aligned vertically. Arranged in the form of substrates, it can provide good contrast (contrast) performance. However, generally, in order to form a multi-domain splitting effect in a vertically aligned LCD, the matched structure may have some light leakage or insufficient multi-domain splitting configuration capability. [0003] Figure 1A It is a schematic cross-sectional view showing the design of a conventional multi-domain vertically aligned LCD (multi-domain vertically aligned LCD; MVA LCD). like Figure 1A As shown, bumps 106 are formed on the u...

AI Technical Summary

Problems solved by technology

However, the way to form the slit 206 at the electrode 204 must carefully consider the width of the slit 206 itself and the distance between the two slits 206, etc. Otherwise, the force generated by the slit 206 to make the liquid crystal molecules 208 fall is easily insufficient.

Furthermore, the design of the slit 206 causes the energy of the liquid crystal molecules 208 to rotate in either direction to be equal, so that the alignment distribution of the liquid crystal molecules 208 in space produces discontinuous disclination.

The misalignment defect region 210 is easily formed above the slit 206 and between the two slits 206, thereby reducing the overall light transmittance

[0006] On the other hand, when the liquid crystal display can only be used in the see-through mode, the backlight can only be used to display the picture. If it is under sunlight or strong ambient light, the user cannot easily Recognize the display image; on the contrary, when the LCD display can only be used in reflective mode, it can only be used under strong ambient light sources, and it is impossible to view clear images after leaving this strong light source environment

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