Low power display driving circuit performing internal encoding and decoding and method of operating same

• Main Authors: LIM HYUN-WOOK, KWON HONG-KI, YU YONG-HOON, PARK JIN-YONG, KIM TAE-WOO, CHUNG HO-JUN, JANG BYUNGUL, JANG WOO-HYUK
• Format: Patent
• Language: Chinese; English
• Published: 29.03.2022
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; CRYPTOGRAPHY; DISPLAY; EDUCATION; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION; SEALS

A low-power display driving circuit performing internal encoding and decoding and a method of operating the same are provided. The display driving circuit includes: a memory configured to store an input bit stream encoded by an encoder; and a controller configured to determine a data path through which the output frame data passes in a second frame period according to whether the internal encoding in the first frame period is successful, where the controller performs internal encoding in the second frame period when the internal encoding is successful, stores a generated internal bit stream in the memory, and outputs the output frame data in the second frame period according to the data path. When the internal encoding fails, the controller allows the internal bitstream to pass through the low-power path to generate output frame data, and when the internal encoding fails, the controller generates the output frame data by allowing the input bitstream to pass through the normal path in the second frame period,