Patent ID: 7663596
Filing Date: 2010-02-16
Classification: G02F,G09G

Abstract:
1. A trans-reflective liquid crystal display device comprising: a timing controller that receives, converts, and outputs image data; a switching unit that determines the output signal of the timing controller according to a transmission mode or reflection mode; a gate driver that receives a gate signal from the timing controller; a data driver that receives a data signal from the timing controller; a liquid crystal display panel with a TFT array substrate having a plurality of data and gate lines defining a plurality of pixels, a color filter substrate and a liquid crystal layer interposed therebetween, and having the pixels having a reflection region and a transmission region, wherein an area of the transmission region is smaller than that of the reflection region to obtain an uniform brightness throughout the liquid crystal display by the high brightness of red, green, and blue emitting diodes, wherein the liquid crystal display panel comprising a TFT formed on the TFT array substrate; an organic layer formed on the TFT array substrate including the TFT; a transmission hole formed in the organic layer and having a slanted side profile; a reflection electrode formed on an upper surface of the organic layer including the slanted side of the transmission hole; a passivation layer formed on the reflection electrode and the transmission hole; a pixel electrode formed on the passivation layer and connected to the TFT; a black matrix formed on the color filter substrate; color filter layers formed on portions of the color filter substrate corresponding to the reflection region except for the transmission region; and a common electrode formed on the black matrix, the color filters and a portion of the color filter substrate corresponding to the transmission region, wherein the liquid crystal display panel displaying image data according to a gate pulse and a data voltage applied by the gate driver and the data driver; a sequential backlight including the red, green, and blue emitting diodes, wherein the backlight is turned on in a transmission mode to sequentially transmit light into the transmission region, wherein the light emitted from the backlight is transmitted through the TFT array substrate, the liquid crystal layer and the color filter substrate corresponding to the transmission region and is turned off in a reflection mode, wherein the backlight is disposed under the TFT array substrate; and a backlight controller connected to the sequential backlight to control the timing of light emissions in the transmission mode.