Patent ID: 7088334

Claim:
A liquid crystal display device comprising: a liquid crystal display panel having a first substrate, a second substrate, a liquid crystal sandwiched between said first substrate and said second substrate, a plurality of pixel electrodes arranged in a matrix on said second substrate, a counter electrode provided on one of said first substrate and said second substrate and a plurality of switching elements connected to said respective plurality of pixel electrodes; a display drive control unit for driving said liquid crystal sandwiched between each of said pixel electrodes and said counter electrode by switching each of said switching elements to apply a voltage to each of said pixel electrodes; a lighting unit having LEDs emitting light of respective red, green and blue colors, and applying said light of each color toward said liquid crystal display panel; and a lighting drive control unit for making said LED of each color perform time-division light emission in synchronization with the switching of each of said switching elements, wherein said LED of each color emits light in a pulse form at a predetermined duty ratio and any of the duty ratio of said LED of each color is not more than 50%, and wherein the light emission time of said LED emitting light of red color is set to be shorter than the light emission time of LED emitting light of green color and shorter than the light emission time of LED emitting light of blue color.