Computer graphics processing and selective visual display system – Display driving control circuitry – Display power source
Reexamination Certificate
2011-01-04
2011-01-04
Nguyen, Kimnhung (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Display power source
C345S087000, C345S213000
Reexamination Certificate
active
07864170
ABSTRACT:
A liquid crystal display device enabling a reduction in size and costs associated with the system as a whole, starting to display images without image distortion at power on time, and turning the screen off without image retention at power off time, a method of controlling the liquid crystal display device, and a mobile terminal incorporating the liquid crystal display device as a screen display. On a glass substrate (11) provided with a display unit (12), peripheral drive circuits such as an interface circuit (13), a timing generator (14), a reference voltage driver (15), a CS driver (18), a VCOM driver (19), and a voltage regulation circuit (20), together with a horizontal driver (16) and a vertical driver (17) are disposed. When a display reset control pulse PCI is supplied from an external source, a predetermined voltage is written into pixels while a CS voltage and a VCOM voltage adjusted to the same level as that of a pixel voltage are applied to a common-electrode-side. This allows the screen to turn white in a normally white type liquid crystal display, and to turn black in a normally black type liquid crystal display. Image distortion at power on/off time can thus be prevented.
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Kida Yoshitoshi
Maekawa Toshikazu
Nakajima Yoshiharu
Depke Robert J.
Nguyen Kimnhung
Rockey Depke & Lyons, LLC
Sony Corporation
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