Liquid crystal display apparatus

Abstract

A display apparatus for executing display in accordance with an image signal, including, a display panel, a plurality of light-sources for illuminating the display panel, and a control circuit for controlling light-emission luminance of the light-sources. The light-emission luminance includes a first light-emission luminance and a second light-emission luminance, and the display panel includes a plurality of display areas, wherein each of the display areas corresponding to each of the light-sources. The control circuit controls switching timing between the first light-emission luminance and the second light-emission luminance of each of the light-sources in accordance with rewriting timing of the image signal concerned with each of the display areas.

1 . A display apparatus for executing display in accordance with an image signal, comprising: 
 a display panel;    a plurality of light-sources for illuminating the display panel; and    a control circuit for controlling light-emission luminance of the plurality of light-sources;    wherein the light-emission luminance includes a first light-emission luminance and a second light-emission luminance, the display panel includes a plurality of display areas, each of the display areas corresponding to each of the light-sources, and the control circuit controls switching timing between the first light-emission luminance and the second light-emission luminance of each of the light-sources in accordance with rewriting timing of the image signal concerned with each of the display areas.    
   
   
       2 . A display apparatus according to  claim 1 , wherein the rewriting timing of the image signal corresponding to each of the display areas is different from the switching timing between the first light-emission luminance and the second light-emission luminance of each of the light-sources and are shifted with each other.  
   
   
       3 . A display apparatus according to  claim 1 , wherein after a predetermined period has passed since the image signal is rewritten corresponding to each of the display areas, the first light-emission luminance is switched to the second light-emission luminance of each of the light sources.  
   
   
       4 . A display apparatus according to  claim 1 , wherein the first light-emission luminance is a light-out luminance and the second light-emission luminance is a light-on luminance.  
   
   
       5 . A display apparatus according to  claim 1 , wherein the control circuit controls the light-emission luminance of the plurality of light sources irrespective of RGB of the image signal.  
   
   
       6 . A display apparatus for executing display in accordance with an image signal, comprising: 
 a display panel;    a plurality of light-sources for illuminating the display panel; and    a control circuit for controlling a first light-emission luminance and a second light-emission luminance of each of the light-sources respectively;    wherein a phase of a switching frequency between the first light-emitting luminance and the second light-emitting luminance of the plurality of light sources are different from one another.    
   
   
       7 . A display apparatus according to  claim 6 , wherein a phase of switching frequency between the first light-emitting luminance of each of the light sources is different from phase of a rewriting time-period of the image signal for display areas of the display panel which corresponds to each of the light sources.  
   
   
       8 . A display apparatus according to  claim 6 , wherein the phase of switching frequency between the first light-emitting luminance and the second light-emitting luminance of each of the light-sources is slower compared to a phase of a rewriting time-period of the image signal concerned with display areas of the display panel.  
   
   
       9 . A display panel according to  claim 6 , wherein the first light-emission luminance is a light-out luminance and the second light-emission luminance is a light-on luminance.  
   
   
       10 . A display apparatus according to  claim 6 , wherein the control circuit controls the first light-emitting luminance and the second light-emitting luminance of each of the light sources respectively, irrespective of RGB of the image signal.  
   
   
       11 . A display apparatus for executing display in accordance with image signal, comprising: 
 a display panel;    a plurality of light sources for illuminating the display panel; and    a control circuit for controlling light-up/light-off of each of the light-sources;    wherein the display panel includes a plurality of display areas, each of the display areas corresponding to each of the light-sources; and    wherein the control circuit lights up each of the light sources, after a predetermined time has passed since the image signal is rewritten corresponding to each of the display areas.