A New TFT-LCD Structure without a Black Matrix

Abstract

We propose a new TFT-LCD structure without a black matrix based on the Super HA (High Aperture) structure which uses organic resin as an insulating layer between the pixel electrodes and signal lines In this structure, the conventional black matrix is replaced by stacks of two color filter layers in the display area In the peripheral area, one of the two metallic layers is formed to prevent light from passing through there. Using this technique, we have succeeded in developing TFT-LCDs without a black matrix on color filter substrates, while maintaining display quality This technique improves the productivity of TFT-LCDs