Data driver generating two sets of sampling signals for sequential-sampling mode and simultaneous-sampling mode

• Main Author: KITAMURA, KENTARO
• Format: Patent
• Language: English; French; German
• Published: 18.11.1998
• Edition: 6
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; CRYPTOGRAPHY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DISPLAY; EDUCATION; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION; SEALS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

Disclosed herein is a data driver for a matrix display device, which includes a shift register circuit for sequentially shifting a sampling start pulse in response to a clock signal, to produce a plurality of sampling signals, a plurality of sample/hole circuits each sampling display data in response to a sampling signal applied thereto. This driver further includes a switching circuit which transfers each of the sampling signals to an associated one of the sample/hold circuits in a sequential-sampling mode and the selected ones thereof to the sample/hold circuits such that one of the selected sampling signals is supplied in common to at least two of the sample/hold circuits in a simultaneous circuits.