DRIVING CIRCUIT FOR DISPLAY

• Main Authors: DAIMON KAZUO, AKAI RIYOUJIN, KUDO YASUYUKI
• Format: Patent
• Language: English
• Published: 25.09.2008
• 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; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; SEALS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

PROBLEM TO BE SOLVED: To provide a driving circuit for display which can achieve low-cost enlargement processing by applying a conventional circuit in the case of displaying display data of resolution that is lower than that of a display panel and further can reduce the power consumption of a display device. SOLUTION: In a liquid crystal display apparatus, a switch 119 for short-circuiting an even signal line e.g. from among even columns and odd columns on a liquid crystal panel 101 to an odd signal line adjacent to the left side of the even signal line and a switch 120 for short-circuiting an odd signal line adjacent to the right side of the even signal line are arranged in an output part of a signal line drive circuit 103. By controlling these switches 119, 120, enlarged display corresponding to bilinear processing can be achieved in the horizontal direction; and by simultaneously scanning two scanning lines, simple enlarged display can be attained in the vertical direction. Furthermore, enlarged display of a low cost and low power consumption can be achieved, by stopping the supply of a steady-state current to an operational amplifier for applying a data voltage to an even signal line. COPYRIGHT: (C)2008,JPO&INPIT