Patent ID: 8199287

Claim:
A pixel structure of a transflective liquid crystal display (TR-LCD) panel comprising: a first substrate comprising a reflection region and a transflective region; a first metal pattern disposed on the first substrate, the first metal pattern comprising: a gate electrode disposed in the reflection region; a first metal electrode disposed in the reflection region having a first voltage; a second metal electrode disposed in the reflection region having a second voltage; a third metal electrode disposed in the reflection region; a first dielectric layer disposed on the first substrate and the first metal pattern; a second metal pattern disposed on the first dielectric layer, the second metal pattern comprising: a source electrode and a drain electrode disposed in the reflection region and respectively corresponding to two opposite sides of the gate electrode; an extension electrode electrically connected to the drain electrode and extending to a part of the transmission region; a fourth metal electrode disposed in the reflection region, the fourth metal electrode being electrically connected to the drain electrode and the third metal electrode, wherein the fourth metal electrode partially overlaps with the first metal electrode to form a storage capacitor; a fifth metal electrode disposed in the reflection region, the fifth metal electrode being floating, wherein the fifth metal electrode partially overlaps with the third metal electrode to form a coupling capacitor, and the fifth metal electrode partially overlaps with the second metal electrode to form a modulating capacitor; a second dielectric layer disposed on the first dielectric layer and the second metal pattern; a reflection electrode disposed on the second dielectric layer in the reflection region, wherein the reflection electrode is electrically connected to the fifth metal electrode; and a transmission electrode disposed on the second dielectric layer in the transmission region, wherein the transmission electrode is electrically connected to the extension electrode.