Display driving apparatus, display apparatus and a method of driving a display apparatus with error detection and correction for cascaded driver integrated circuits

• Main Authors: KANG, CHANG-WOOK, KIMURA, HISASHI
• Format: Patent
• Language: English; French; German
• Published: 24.08.2011
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; BASIC ELECTRIC ELEMENTS; 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 SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; SEALS; SEMICONDUCTOR DEVICES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

A display driving apparatus for outputting control signals to a number of driver integrated circuits (ICs). The plurality of driver ICs are connected in a cascade such that, when a first control signal is input to a first driver IC, a transmission signal corresponding to the first control signal is transmitted to a subsequent driver IC. The display driving apparatus includes a restoration signal generation unit for generating restoration signals with respect to the first control signal and transmission signals of the number of driver ICs; an error detection unit for detecting an abnormal driver IC that does not operate normally from among the plurality of driver ICs; and a restoration signal output unit for outputting a restoration signal to the abnormal driver IC.