Driving circuit of display device and method of driving same

• Main Author: TERAISHI TOSHIO
• Format: Patent
• Language: English
• Published: 13.02.2007
• 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

There is provided a driving circuit of a liquid crystal display device capable of solving a problem of power consumption while solving a problem of time required for charge/discharge of source lines by virtue of shorting by use of precharge. The driving circuit of the liquid crystal display device comprises first shorting means, second shorting means, third shorting means, and fourth shorting means. With the use of the fourth shorting means, in particular, the source lines can be driven starting from a predetermined potential generated by a gradation voltage generation circuit, and a drive start potential is changed from a conventional common electrode potential to potentials generated by the gradation voltage generation circuit, so that power consumption can be effectively reduced (by about 8% on average as compared with the conventional case).