US 12,190,800 B2
Display controller, display device, display system, and control method
Baoyun Wu, Beijing (CN); Yang Yu, Beijing (CN); Yuanzhang Zhu, Beijing (CN); Xuesong Tian, Beijing (CN); Xinbin Han, Beijing (CN); Shiming Shi, Beijing (CN); Hui Zhao, Beijing (CN); and Hualing Yang, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 18/246,047
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed May 31, 2022, PCT No. PCT/CN2022/096429
§ 371(c)(1), (2) Date Mar. 21, 2023,
PCT Pub. No. WO2023/230903, PCT Pub. Date Dec. 7, 2023.
Prior Publication US 2024/0233631 A1, Jul. 11, 2024
Int. Cl. G09G 3/3225 (2016.01); G09G 3/20 (2006.01); G09G 3/3266 (2016.01)
CPC G09G 3/3225 (2013.01) [G09G 3/2092 (2013.01); G09G 3/3266 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0252 (2013.01); G09G 2340/0435 (2013.01); G09G 2370/00 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A display controller, comprising:
a flag-signal circuit configured to send a flag-signal to an application processor;
an image processing circuit configured to obtain second current image data in response to receiving first current image data from the application processor, wherein the first current image data is sent by the application processor in response to receiving the flag-signal sent from the flag-signal circuit; and
a drive circuit configured to generate a first drive control signal in response to receiving the second current image data from the image processing circuit,
wherein the flag-signal circuit is further configured to send the flag-signal loaded with a first pulse signal to the application processor, and the flag-signal loaded with the first pulse signal is configured to indicate that the application processor is allowed to send the first current image data to the image processing circuit,
wherein the image processing circuit is further configured to obtain, according to the first current image data, the second current image data in response to receiving the first current image data from the application processor, and the first current image data is sent by the application processor in response to receiving the flag-signal loaded with the first pulse signal, which is sent from the flag-signal circuit,
wherein the first drive control signal comprises a scan start signal loaded with a second pulse signal,
wherein the drive circuit is further configured to generate the scan start signal loaded with the second pulse signal in response to detecting that previous image data from the application processor is processed, and
wherein the flag-signal circuit is further configured to generate the flag-signal loaded with the first pulse signal in response to receiving the scan start signal loaded with the second pulse signal from the drive circuit.