Data processing device, data driving device and display device including the same
AssigneeLx Semicon Co., Ltd.
InventorsDo Seok Kim, So Hyeon Kim
Life of this patent
Estimating the term…
Abstract
The embodiment discloses a data processing device, a data driving device, and a display device, wherein the data processing device transmits configuration data in a low-speed communication mode, transitions to a high-speed communication mode after the low-speed communication mode to transmit control data and image data, and retransmits a clock training pattern while maintaining the high-speed communication mode upon receiving a lock-fail signal during the operation of the high-speed communication mode.
Claims14
A data processing device, wherein the data processing device is configured to:
- transmit configuration data in a low-speed communication mode;
- transition to a high-speed communication mode after the low-speed communication mode and transmitting control data and image data;
- retransmit a clock training pattern while maintaining the high-speed communication mode when a lock-fail signal is received during operation in the high-speed communication mode;
- and
- when the lock signal for the retransmitted clock training pattern is not received within a predefined time, the low-speed communication mode is re-executed.
A data driving device, wherein the data driving device is configured to:
- receive configuration data in a low-speed communication mode;
- receive control data and image data in a high-speed communication mode after the low-speed communication mode;
- and
- when a lock-fail is detected during operation in the high-speed communication mode, transmit a lock-fail signal to the data processing device, and perform training by receiving a recovery start signal and a clock training pattern while maintaining the high-speed communication mode;
- when power is supplied, the low-speed communication mode is activated to receive a preamble pattern;
- after a lock signal for the preamble pattern is transmitted, the configuration data is received;
- and
- the high-speed communication mode is activated by continuously transmitting the lock signal.
A display device comprising:
- a data processing device configured to transmit configuration data in a low-speed communication mode, to transition to a high-speed communication mode after the low-speed communication mode to transmit control data and image data, and to retransmit a recovery start signal and a clock training pattern while maintaining the high-speed communication mode when a lock-fail signal is received during the high-speed communication mode;
- and
- a data driving device configured to receive the recovery start signal and the clock training pattern and perform training,
- a first communication line configured to transmit the image data;
- a second communication line configured to transmit and receive the lock signal;
- and
- a third communication line configured to detect an interface connection between the data processing device and the data driving device,
- wherein the data driving device is configured to change a signal level of at least one of the third communication line and the second communication line when a lock-fail signal is received while operating in the high-speed communication mode.
Dependencies are inferred from the claim text.