Patent ID: 7511772

Claim:
A liquid crystal television receiver which corrects optical response characteristics of a liquid crystal panel by subjecting image data supplied to the liquid crystal display panel to enhancing conversion at least in accordance with image data of a directly previous vertical period and image data of a current vertical period, the liquid crystal television receiver being capable of reproducing images based on image data of more than one broadcasting standard, the liquid crystal television receiver comprising: a signal type detecting section for detecting whether input image data is a video signal of a first broadcasting standard or a video signal of a second broadcasting standard, the video signal of the first broadcasting standard being different, in terms of a vertical frequency, from the video signal of the second broadcasting standard; an enhancing conversion section for subjecting the input image data to enhancing conversion in a direction of gray level transition; a temperature sensor for detecting a temperature in the liquid crystal television receiver; and table memories that store enhancing conversion parameters that correspond to respective temperatures in the liquid crystal television receiver and are specified by the image data of the current vertical period and the image data of the directly previous vertical period, the enhancing conversion section including an operation section that performs, using the enhancing conversion parameter read out from the table memories, an operation on the image data so as to enhance the image data, in accordance with a result of comparison between (i) a switching temperature determined by the result of the detection by the signal type detecting section and (ii) the result of the detection by the temperature sensor.