Patent ID: 9075270
Filing Date: 2015-07-07
Classification: G02F

Abstract:
1. A liquid crystal display device, comprising: a substrate; gate and data lines crossing each other on the substrate to thereby define a pixel region; a thin film transistor connected to the gate and data lines and having a drain electrode; a storage capacitor connected to the drain electrode; a plurality of pixel electrodes and a plurality of first common electrodes alternating with each other in the pixel region and configured to induce an in-plane electric field, and each including a first layer and a second layer on the first layer; a passivation layer on the thin film transistor and the storage capacitor; an auxiliary common pattern on the passivation layer; and an auxiliary pixel pattern on the passivation layer, wherein the first layer is placed over the substrate and on the passivation layer, and the second layer is placed on the first layer, wherein the first layer is made of an opaque metal and has a first thickness, and the second layer is made of a transparent conductive material and has a second thickness, wherein the second thickness is about λ/4, where λ is a wavelength of an ambient light, wherein a refractive index of the first layer is greater than a refractive index of the second layer, wherein the auxiliary common pattern and the auxiliary pixel pattern are parallel with the gate line and are opposite to each other in the pixel region, and wherein the auxiliary common pattern and the auxiliary pixel pattern each include the first and second layers.