Transflective liquid crystal display

Abstract

A transflective liquid crystal display (LCD) includes at least a transmission pixel region and at least a reflection pixel region positioned in a pixel region. The transmission region includes at least a transmissive electrode connected to a first switching element. The reflection pixel region includes at least a reflective electrode connected to a second switching element. The transmissive and the reflective electrodes are controlled respectively by independent switching elements.

What is claimed is:  
     
         1 . A transflective liquid crystal display (LCD) including at least a reflection region and a transmission region positioned in a pixel region of the transflective liquid crystal display, wherein the reflection region includes at least a reflective electrode connected to a first switching element, and the transmission region includes at least a transmissive electrode connected to a second switching element.  
     
     
         2 . The transflective LCD of  claim 1 , wherein the pixel region is a red color pixel region.  
     
     
         3 . The transflective LCD of  claim 1 , wherein the pixel region is a green color pixel region.  
     
     
         4 . The transflective LCD of  claim 1 , wherein the pixel region is a blue color pixel region.  
     
     
         5 . The transflective LCD of  claim 1 , wherein the first switching element is used to control a reflection mode of the transflective LCD, and the second switching element is used to control a transmission mode of the transflective LCD.  
     
     
         6 . The transflective LCD of  claim 5 , wherein the reflection mode and the transmission mode are operated individually or cooperatively to achieve best display effect.  
     
     
         7 . The transflective LCD of  claim 1 , wherein the first switching element and the second switching element share a scan line.  
     
     
         8 . The transflective LCD of  claim 7 , wherein the first switching element is connected to a first data line and uses the first data line to send a signal to the reflection region for controlling the brightness of the reflection region, and the second switching element is connected to a second data line and uses the second data line to send a signal to the transmission region for controlling the brightness of the transmission region.  
     
     
         9 . The transflective LCD of  claim 1 , wherein the first switching element and the second switching element share a data line.  
     
     
         10 . The transflective LCD of  claim 9 , wherein the first switching element is connected to a first scan line to send a signal to the reflection region for switching the reflection region, and the second switching element is connected to a second scan line to send a signal to the transmission region for switching the transmission region.  
     
     
         11 . The transflective LCD of  claim 1 , wherein the second switching element is located under the reflective electrode to avoid affecting the aperture ratio of the transflective LCD.  
     
     
         12 . The transflective LCD of  claim 1 , wherein the reflective electrode includes metal or materials having good conductivity.  
     
     
         13 . The transflective LCD of  claim 1 , wherein the transmissive electrode includes silicon.  
     
     
         14 . The transflective LCD of  claim 13 , wherein the transmissive electrode is connected to an active layer of the second switching element.  
     
     
         15 . The transflective LCD of  claim 13 , wherein the transmissive electrode includes doped polysilicon or doped amorphous silicon.  
     
     
         16 . The transflective LCD of  claim 1 , wherein the transmissive electrode includes non-doped polysilicon or non-doped amorphous silicon.  
     
     
         17 . The transflective LCD of  claim 1 , wherein the transmissive electrode includes ITO (indium tin oxide) or IZO (indium zinc oxide).  
     
     
         18 . The transflective LCD of  claim 17 , wherein the transmissive electrode is located in a bottom layer of the second switching element.  
     
     
         19 . The transflective LCD of  claim 17 , wherein the transmissive electrode and the scan line are located in the same layer.  
     
     
         20 . The transflective LCD of  claim 17 , wherein the transmissive electrode and the data line are located in the same layer.