SEMICONDUCTOR CIRCUIT DEVICE FOR DRIVING PANEL

• Main Authors: SEIKE MAMORU, SUYAMA TORU, KAGEYAMA HIROYUKI
• Format: Patent
• Language: English
• Published: 09.05.2002
• Edition: 7
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; BASIC ELECTRONIC CIRCUITRY; 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; ELECTRICITY; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; PULSE TECHNIQUE; SEALS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

PROBLEM TO BE SOLVED: To provide a circuit device whose outputs can be made multiple and whose cost can be reduced by the reduction the number of flip-flop circuits constituting a shift register, the reduction of transistor scale of a control circuit, the reduction of a wiring area or the like in a semiconductor circuit device for driving a panel. SOLUTION: In this circuit device, the area of an LSI(large scale integrated circuit) can be reduced by making the number of flip-flops to roughly half of the number of outputs by constituting the shift register into two-output system with one flip-flop and by reducing the circuit scale of the control circuit by constituting the selection circuit of data to be fetched to a latch circuit with a switching circuit which is constituted of an input-output circuit composed of two tri-state inverters and a transfer gate.