Liquid crystal display device
View Patent ↗A liquid crystal display device includes a liquid crystal display panel, a backlight which illuminates the liquid crystal display panel, and a display control circuit which controls the liquid crystal display panel and the illumination light source. The display control circuit includes a panel driving section which drives the liquid crystal display panel after supply of power, a state detecting section which detects a display driving state that the panel driving section drives the liquid crystal display panel for display of a stable image corresponding to a video signal, and a light source driving section which drives the backlight in accordance with an illumination request signal, after detection of the display driving state by the state detecting section.
1. A liquid crystal display device comprising:
a liquid crystal display panel;
an illumination light source which illuminates said liquid crystal display panel; and
a display control circuit which controls said liquid crystal display panel and said illumination light source;
wherein said display control circuit includes a panel driving section which drives said liquid crystal display panel after supply of power, a state detecting section which detects a display driving state that said panel driving section drives said liquid crystal display panel for display of a stable image corresponding to a video signal, and a light source driving section which drives said illumination light source in accordance with a request of illumination, after detection of the display driving state by said state detecting section,
wherein said panel driving section is configured to be in a transfer driving state of transferring liquid crystal molecules from a splay alignment to a bend alignment upon supply of power in a case where said liquid crystal display panel is of an OCB mode, and in the display driving state subsequently to the transfer driving state.
2. The liquid crystal display device according to claim 1 , wherein said state detecting section is configured to detect a sync signal supplied together with the video signal and detects a driving state of said panel driving section based on the sync signal and output signals from said panel driving section.
3. The liquid crystal display device according to claim 2 , wherein said light source driving section is configured to turn on and off said illumination light source based on a logical product of a signal serving as the request of illumination and a detection signal from said state detecting section.
4. The liquid crystal display device according to claim 1 , wherein said illumination light source is a backlight disposed on a rear side of said liquid crystal display panel.