Liquid crystal display apparatus and driving method
AssigneeToshiba Matsushita Display Technology Co., Ltd.
InventorsShigesumi Araki, Kazuhiro Nishiyama, Mitsutaka Okita
Life of this patent
Estimating the term…
Abstract
A liquid crystal display apparatus includes a display panel configured to be formed by arranging pixels like a matrix, a light source configured to light the display panel, and a driving control means for controlling the display panel, wherein the pixels are transreflective type liquid crystal pixels having a reflective part and a transmissive part driven independently, and the driving control means is configured to separately control non-image periods of the reflective part and transmissive part.
Claims16
A transreflective type liquid crystal apparatus comprising:
- a display panel configured to be formed by arranging pixels like a matrix;
- a light source configured to light the display panel;
- and
- a driving controller configured to control the display panel, wherein
- each of the pixels includes one of red, green or blue color filter and each of the pixels includes a reflective part and a transmissive part driven independently,
- the driving controller is configured to separately control non-image periods of the reflective part and transmissive part, and
- a ratio of the non-image period to one frame period for the transparent pixel is different from a ratio of the non-image period to one frame period for the reflective pixel.
A transreflective type liquid crystal display apparatus comprising:
- an OCB liquid crystal display panel configured to be formed by arranging pixels like a matrix;
- a light source configured to light the display panel;
- and
- a driving controller configured to control the display panel,
- wherein each of the pixels includes one of red, green or blue color filter, each of the pixels includes a reflective part and a transmissive part driven independently, the driving controller is configured to separately control black insertion ratios of the reflective part and transmissive part, and
- a black insertion ratio of one frame period for the reflective part of a pixel is different from a black insertion ratio of one frame period for the transmissive part of the pixel.
A transreflective type liquid crystal display apparatus comprising:
- a display panel having a plurality of pixels arranged in a matrix;
- a light source configured to light the display panel;
- and
- a driving controller configured to control the display panel, wherein
- each pixel includes one of red, green or blue color filter, a common electrode, a transparent and reflective pixel electrodes, and a liquid crystal layer sandwiched between the common electrode and the transparent and reflective pixel electrodes,
- the driving controller is configured to separately apply a voltage for black display to the transparent pixel electrode and the reflective pixel electrode during non-image periods, and
- a ratio of the non-image period to one frame period for the transparent pixel is different from a ratio of the non-image period to one frame period for the reflective pixel.
Dependencies are inferred from the claim text.