Transflective liquid crystal display panel, liquid crystal display module and liquid crystal display thereof

Abstract

A transflective LCD panel includes scan lines, data lines, transmissive pixels and reflective pixels. Each transmissive pixel is configured to receive a transmissive pixel voltage transmitted from one of the data lines and displays a first gray level related to the transmissive pixel voltage. Each reflective pixel receives a reflective pixel voltage transmitted from one of the data lines and displays a second gray level related to the reflective pixel voltage. When the transmissive pixel and the reflective pixel are used to display a same gray level, the transmissive pixel voltage and the reflective pixel voltage are predetermined such that corresponding first and second gray levels substantially equal each other.

1 . A transflective liquid crystal display (LCD) device, comprising:
 a liquid crystal layer;   a plurality of scan lines;   a plurality of data lines;   a plurality of transmissive pixels including a first transmissive pixel controlled by one of the scan lines and configured to receive a transmissive pixel voltage transmitted from one of the data lines to drive a first portion of the liquid crystal layer and display a first gray level related to the transmissive pixel voltage; and   a plurality of reflective pixels including a first reflective pixel controlled by one of the scan lines and configured to receive a reflective pixel voltage transmitted from one of the data lines to drive a second portion of the liquid crystal layer and display a second gray level related to the reflective pixel voltage;   wherein the transflective LCD panel has a single cell gap.   
   
   
       2 . The transflective LCD panel according to  claim 1 , wherein when the first transmissive pixel and the first reflective pixel are used to display a same gray level, the transmissive pixel voltage and the reflective pixel voltage, respectively received by the first transmissive pixel and the first reflective pixel, are predetermined to make the first gray level and the second gray level substantially equal to each other. 
   
   
       3 . A transflective liquid crystal display (LCD) device, comprising:
 a liquid crystal layer;   a plurality of scan lines;   a plurality of data lines;   at least one driving circuit configured to drive the scan lines and the data lines;   a plurality of transmissive pixels including a first transmissive pixel controlled by one of the scan lines and configured to receive a transmissive pixel voltage transmitted from one of the data lines to drive a first portion of the liquid crystal layer, wherein backlight, emitted from a backlight source, passes through the first transmissive pixel at a first transmittance rate related to the transmissive pixel voltage;   a plurality of reflective pixels including a first reflective pixel controlled by one of the scan lines and configured to receive a reflective pixel voltage transmitted from one of the data lines to drive a second portion of the liquid crystal layer, wherein environmental light is incident to and reflected by the first reflective pixel at a second transmittance rate related to the reflective pixel voltage; and   a photosensor unit, configured to sense a spectrum of the environmental light, and is electrically connected to the driving circuit;   wherein when the first transmissive pixel and the first reflective pixel are used to display a same gray level, the driving circuit is configured to adjust the gray level into an adjusted gray level according to the spectrum sensed by the photosensor unit and generate the reflective pixel voltage according to the adjusted gray level such that the first transmissive pixel and the first reflective pixel respectively generate a first brightness and a second brightness.   
   
   
       4 . The transflective LCD module according to  claim 3 , wherein the first brightness and the second brightness are substantially equal to each other. 
   
   
       5 . The transflective LCD module according to  claim 3 , wherein the transflective LCD module has a single cell gap. 
   
   
       6 . A transflective liquid crystal display (LCD) device, comprising:
 a liquid crystal layer;   a plurality of scan lines;   a plurality of data lines;   a plurality of transmissive pixels including a first transmissive pixel controlled by one of the scan lines and configured to receive a transmissive pixel voltage transmitted from one of the data lines to drive a first portion of the liquid crystal layer, wherein backlight emitted from a backlight source passes through the first transmissive pixel at a first transmittance rate related to the transmissive pixel voltage; and   a plurality of reflective pixels including a first reflective pixel controlled by one of the scan lines and configured to receive a reflective pixel voltage transmitted from one of the data lines to drive a second portion of the liquid crystal layer, wherein environmental light is incident to and reflected by the first reflective pixel at a second transmittance rate related to the reflective pixel voltage;   wherein a resolution of the transmissive pixels is unequal to a resolution of the reflective pixels.   
   
   
       7 . The transflective LCD panel according to  claim 6 , wherein the plurality of transmissive pixels form a plurality of transmissive pixel rows, the plurality of reflective pixels form a plurality of reflective pixel rows, and the number of reflective pixel rows is smaller than the number of transmissive pixel rows. 
   
   
       8 . The transflective LCD panel according to  claim 6 , the number of the reflective pixels is smaller than the number of the transmissive pixels. 
   
   
       9 . The transflective LCD panel according to  claim 6 , wherein the transflective LCD panel has a single cell gap. 
   
   
       10 . A transflective liquid crystal display (LCD) device, comprising:
 a plurality of scan lines;   a plurality of data lines;   a first liquid crystal layer;   a second liquid crystal layer;   a plurality of transmissive pixels including a first transmissive pixel, which is controlled by one of the scan lines and is configured to receive a transmissive pixel voltage transmitted from one of the data lines to drive the first liquid crystal layer; and   a plurality of reflective pixels including a first reflective pixel, which is controlled by one of the scan lines and is configured to receive a reflective pixel voltage transmitted from one of the data lines to drive the second liquid crystal layer;   wherein a first align mode is associated with the first liquid crystal layer and a second align mode is associated with the second liquid crystal layer.   
   
   
       11 . The transflective LCD panel according to  claim 10 , wherein the aligned mode associated with the first liquid crystal layer is a low twist TN mode, and the aligned mode associated with the second liquid crystal layer is a hybrid aligned nematic (HAN) mode. 
   
   
       12 . The transflective LCD panel according to  claim 10 , wherein the transflective LCD panel has a single cell gap. 
   
   
       13 . A transflective liquid crystal display (LCD) device configured to generate a frame in a frame time, the LCD panel comprising:
 a plurality of scan lines;   a plurality of data lines;   a first transmissive pixel controlled by one of the scan lines and configured to receive a plurality of transmissive pixel voltages sequentially transmitted from one of the data lines in the frame time, wherein a plurality of backlight colors, sequentially emitted from a backlight source, sequentially passes through each of the transmissive pixels in the frame time so that the transmissive pixel sequentially displays a plurality of colors in the frame time, and each of the plurality of colors is related to corresponding one of the plurality of transmissive pixel voltages respectively; and   a plurality of reflective pixels, each of which is controlled by one of the scan lines and configured to receive a reflective pixel voltage transmitted from one of the data lines in the frame time, wherein environmental light is reflected by each of the plurality of reflective pixels.   
   
   
       14 . The transflective LCD panel according to  claim 13 , wherein the backlight colors are red, green and blue. 
   
   
       15 . The transflective LCD panel according to  claim 13 , wherein the plurality of reflective pixels include a red reflective pixel having a red color filter, a green reflective pixel having a green color filter, and a blue reflective pixel having a blue color filter. 
   
   
       16 . The transflective LCD panel according to  claim 14 , wherein the first transmissive pixel having a first size three times a second size of each of the plurality of reflective pixels. 
   
   
       17 . The transflective LCD panel according to  claim 13 , wherein the transflective LCD panel has a single cell gap.