US 6,608,610 B2Granted

Plasma display device drive identifies signal format of the input video signal to select previously determined control information to drive the display

AssigneeMitsubishi Denki Kabushiki Kaisha

InventorTakayoshi Nagai

Life of this patent

Estimating the term…

Loading patent…

Abstract

A plasma display device and a method of driving a plasma display which are capable of performing suitable display control in response to the signal format of an input signal are provided. Either a television signal or a graphic signal is inputted as the input signal. A signal format identification circuit identifies whether the signal format of the input signal is the television signal or the graphic signal. A mode-by-mode control signal generating portion determines the driving sequence of a driving circuit in response to the identified signal format to perform the driving control of the driving circuit. Then, a display panel is driven in response to the signal format of the input signal to display an image.

Claims8

Dependent claims

A plasma display device comprising:

a plasma display panel in which a plurality of discharge cells are formed;
a panel drive controlling whether or not luminescence is caused on each of said plurality of discharge cells by applying to said plasma display panel, a drive pulse including priming pulses which cause priming discharges in said plurality of discharge cells and sustain pulses which cause luminescence on said plurality of discharge cells;
a video signal processor converting a video signal as inputted to digital image data to be displayed;
and
a control signal generating circuit for controlling occurrences of said drive pulse which is caused by said panel drive in accordance with a signal format of said video signal as inputted, the signal format being identified by a signal format identifier prior to being provided to said control signal generating circuit.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/022,500Filed 20 Dec 2001 · continuation
Priority: JP PO9-8103931 Mar 1997
Published: US 2002/0044105 A14 Jul 2002
Granted: 19 Aug 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

G09G 3/2033
Using sub-frames: with splitting one or more sub-frames corresponding to the most significant bits into two or more sub-frames
G09G 3/2927
For reset discharge, priming discharge or erase discharge occurring in a phase other than addressing: details of initialising
G09G 2320/0238
Improving the quality of display appearance: improving the black level
G09G 2320/0271
Improving the quality of display appearance: adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or…

Family

Application09/046,135Parent of this continuation · filed 23 Mar 1998
US 2002/0084954 A1Pre-grant publication · published 4 Jul 2002
US 2002/0044105 A1Published application
US 6,476,801 B2Related patent
US 6,608,610 B2This patent

From the US filing history. Foreign family members aren’t listed.