Liquid Crystal Display Apparatus

Abstract

A display apparatus and method having a pair of substrates, a display area which has a plurality of pixels, a lighting device which includes a plurality of light sources, a scanning driver which outputs scanning signals to the plurality of pixels, and an image driver which outputs image signals to the plurality of pixels. The lighting device illuminates the display area, the image signals are inputted to the plurality of pixels respectively, and each of the plurality of pixels controls a transmittance of an incident light from the lighting device after the image signals are inputted to the plurality of pixels respectively. The lighting device lights the plurality of light sources corresponding to the image signals inputted to the plurality of pixels after each of the plurality of pixels controls the transmittance.

1 . A display apparatus comprising:
 a pair of substrates, a display area which has a plurality of pixels, a lighting device which includes a plurality of light sources, a scanning driver which outputs scanning signals to the plurality of pixels, and an image driver which outputs image signals to the plurality of pixels, wherein   the lighting device illuminates the display area,   the image signals are inputted to the plurality of pixels respectively,   each of the plurality of pixels controls a transmittance of an incident light from the lighting device after the image signals are inputted to the plurality of pixels respectively, and   the lighting device lights the plurality of light sources corresponding to the image signals inputted to the plurality of pixels after each of the plurality of pixels controls the transmittance.   
     
     
         2 . A display apparatus according to  claim 1 , wherein the lighting device lights the plurality of light sources immediately after each of the plurality of pixels controls the transmittance. 
     
     
         3 . A display apparatus according to  claim 1 , wherein the plurality of light sources are light emitting diodes. 
     
     
         4 . A display apparatus according to  claim 1 , wherein each of the plurality of pixels has at least one active element, and
 the scanning signals are inputted to the active element.   
     
     
         5 . A display apparatus according to  claim 4  wherein the active element is a thin film transistor,
 the scanning signals are inputted to a gate electrode of the thin film transistor, and 
 the image signals are inputted to a source electrode or a drain electrode of the thin film transistor. 
 
     
     
         6 . A display apparatus according to  claim 1 , wherein the lighting device controls a lighting time of the plurality of light sources. 
     
     
         7 . A display apparatus according to  claim 1 , wherein the image signals include first image signals and second image signals,
 each of the plurality of pixels controls the transmittance after the first image signals are inputted to the plurality of pixels respectively,   the lighting device lights the plurality of light sources corresponding the first image signals inputted to the plurality of pixels after each of the plurality of pixels controls the transmittance, and   the image driver starts to output the second image signals while each of the plurality of pixels controls the transmittance corresponding to the first image signals.   
     
     
         8 . A display apparatus according to  claim 7 , wherein the lighting device lights the plurality of light sources corresponding to the first image signals immediately after each of the plurality of pixels controls the transmittance. 
     
     
         9 . A display apparatus according to  claim 7 , wherein the lighting device controls a lighting time of the plurality of light sources. 
     
     
         10 . A display apparatus according to  claim 7 , wherein the first image signals are a part of data which constitutes an image of one frame,
 the second image signals are another part of the data, the another part of the data being continuous with the part of data.   
     
     
         11 . A driving method of a display apparatus including a pair of substrates, a display area which has a plurality of pixels, a lighting device which includes a plurality of light sources and illuminates the display area, a scanning driver which outputs scanning signals to the plurality of pixels, and an image driver which outputs image signals to the plurality of pixels, the method comprising:
 inputting the image signals to the plurality of pixels respectively,   controlling a transmittance of an incident light from the lighting device with respect to each of the plurality of pixels after the inputting of the image signals, and   lighting the plurality of light sources corresponding to the image signals inputted to the plurality of pixels after the controlling of the transmittance.   
     
     
         12 . A driving method of a display apparatus according to  claim 11 , wherein the lighting of the plurality of light sources is an immediate step after the controlling of the transmittance. 
     
     
         13 . A driving method of a display apparatus according to  claim 11 , wherein the plurality of light sources are light emitting diodes. 
     
     
         14 . A driving method of a display apparatus according to  claim 11 , wherein each of the plurality of pixels has at least one active element, and
 the scanning signals are inputted to the active element.   
     
     
         15 . A driving method of a display apparatus according to  claim 14 , wherein the active element is a thin film transistor,
 the scanning signals are inputted to a gate electrode of the thin film transistor, and   the image signals are inputted to a source electrode or a drain electrode of the thin film transistor.   
     
     
         16 . A driving method of a display apparatus according to  claim 11 , wherein the lighting device controls a lighting time of the plurality of light sources. 
     
     
         17 . A driving method of a display apparatus according to  claim 11 , wherein the image signals include first image signals and second image signals,
 the method comprises:   inputting the first image signals to the plurality of pixels respectively,   controlling the transmittance after the inputting of the first image signals,   lighting the plurality of light sources corresponding to the first image signals inputted to the plurality of pixels after the controlling of the transmittance, and   starting an outputting of the second image signals from the image driver during the controlling of the transmittance corresponding to the first image signals.   
     
     
         18 . A driving method of a display apparatus according to  claim 17 , wherein the lighting of the plurality of light sources corresponding to the first image signals is an immediate step after the controlling of the transmittance. 
     
     
         19 . A driving method of a display apparatus according to  claim 17 , wherein the lighting device controls a lighting time of the plurality of light sources. 
     
     
         20 . A driving method of a display apparatus according to  claim 17 , wherein the first image signals are a part of data which constitutes an image of one frame,
 the second image signals are another part of the data, the another part of the data being continuous with the part of data.