Study Of Fringe Field Switching Display Technologys Based On The Negative Liquid Crystal

With the popularity of smart mobile phone and tablet computer applications, high resolution, wide viewing angle becomes an important trend in the development of panel technology for small and medium size liquid crystal display.In most kinds of wide view technologies, fringe field switching mode since its characteristics advantages of low power consumption, high light transmittance, high brightness, fast response, non-color shift, high color reproduction, has been widely applied.However, the positive liquid crystal material is general used for the traditional technique of FFS wide viewing angle technology, it is difficult to achieve higher light transmittance for the products of small size and high resolution, moreover, the dynamic stability of the traditional liquid crystal material is easily affected by external interference field in the cell, which will bring a great distress for high image quality especially the application of high resolution touch products. While the negative liquid crystal material under the same conditions, light transmittance is higher than that of the traditional positive liquid crystal materials, and due to the negative liquid crystal molecular direction is perpendicular to the direction of electric field, the negative liquid crystal with matching electrode structure can overcome the problem that the LCD panel is easily affected by the influence of external disturbance field, it is very useful to FFS mode LCD design.This thesis mainly studies a kind of improved FFS electrode architecture wide view angle technique which based on the negative liquid crystal material. Firstly, using Techwiz simulation software to optimize the simulation result of a number of parameters, in order to achieve high cell transmittance and fast response, and then verify its performance by a 5.43 inch QHD display panel.