Readiness signaling between master and slave controllers of a liquid crystal display

摘要

A liquid crystal display includes a liquid crystal panel and a first to nth control substrates (n is an integer which is 2 or greater) which control the liquid crystal panel. When the first control substrate enters an operable status, the first control substrate transmits a readiness signal to the second control substrate which is at a next stage, and when the nth control substrate determines that the nth control substrate receives a readiness signal from a control substrate at a previous stage and is in an operable status, the nth control substrate transmits a readiness signal to the first control substrate, thereby being able to suppress a synchronization failure between the plurality of control substrates which are provided in a liquid crystal display.

主权项

1. A liquid crystal display comprising:
a liquid crystal panel having n separate display areas wherein n is an integer which is 2 or greater; and first to nth control substrates which control the respective display areas, wherein, when a power supply voltage of the first control substrate becomes equal to or larger than a first threshold, the first control substrate transmits a readiness signal to the second control substrate which is at a next stage, wherein, the nth control substrate transmits a readiness signal to the first control substrate based on the nth control substrate receiving a readiness signal from a control substrate at a previous stage and a power supply voltage of the nth control substrate becoming equal to or larger than an nth threshold, wherein the first control substrate receives a readiness signal from the nth control substrate and transmits a reset release signal to all of other control substrates, wherein reset states of the other control substrates are released in response to the reset release signal, wherein a timing controller is provided on each of the first to nth control substrates and the respective timing controllers are operated in synchronization with each other based on a synchronization signal, and wherein preparations of operations of timing controllers provided on the other control substrates are completed by the reset release signal.