Patent ID: 9691339
Date: 2017-06-27
CPC Classifications: G09G,H04N

Claim:
1. A display apparatus, comprising: a display device; a display device driver which drives said display device; a compression section configured to select, in response to a frame rate with which said display device driver drives said display device, a data compression ratio such that a product of said data compression ratio and said frame rate is kept constant independently of said frame rate, and generate compression data by compression processing on image data with the data compression ratio; and a transmission section which, when receiving said compressed data from said compression section, transmits said compressed data to said display device driver by using a serial data signal, wherein said display device driver receives said serial data signal from said transmission section, generates decompressed data by decompressing said compressed data transmitted by using said serial data signal, and drives said display device in response to said decompressed data, and wherein said compression section is configured to receive the frame rate and adjust the data compression ratio based on the received frame rate, wherein said transmission section includes: a first clock generating circuit formed as a Phase Locked Loop (PLL) or a Delay Locked Loop (DLL), which venerates a first synchronizing clock signal synchronous with a source clock signal; and a serial transmission circuit transmitting said serial data signal in synchronization with the first synchronizing clock signal received from said first clock generating circuit, wherein said first clock generating circuit is configured not to switch a frequency of said first synchronizing clock signal even when switching of said frame rate occurs.