Patent ID: 8314906
Filing Date: 2012-11-20
Classification: G02F

Abstract:
1. A substrate comprising: an insulating plate having a pixel area, the pixel area defined by a reflection region and a transmission window; a switching element formed in the pixel area; a pixel electrode electrically connected to the switching element; a reflection layer disposed in alignment with the reflection region, the reflection layer being receptive to a front light emitted from a viewer's side outside of the substrate being reflected from the reflection layer toward the viewer's side, the reflection layer being receptive to a backside light emitted from a backside of the substrate opposite the viewer's side being reflected from the reflection layer toward the backside; and a brightness enhancement layer formed intermediate the reflection layer and the backside light, wherein the backside light being emitted from the backside toward the reflection layer through the brightness enhancement layer becomes a reflection light being emitted from the reflection layer toward the backside through the brightness enhancement layer, wherein the brightness enhancement layer delays a phase of the backside light by about 1/4 phase providing a phase-delayed backside light to the reflection layer, and the brightness enhancement layer delays a phase of the reflection light by about 1/4 phase providing a phase-delayed reflection light to the backside.