Organic light-emitting diode display and operation method thereof
An OLED display and an operation method thereof, which are capable of preventing malfunctions caused by the influence of external noise on an extended cable when a display panel is separated from a set part by a predetermined distance or longer, are discussed. The OLED display includes a timing controller embedded in the set part separated from the display module by a predetermined distance and configured to control a reset signal for cancelling a safety mode to be transmitted to the display module in order to prevent the safety mode from being abnormally maintained due to the influence of external noise on a cable used to connect the display module and the set part when the safety mode for displaying a black screen is executed, to thereby prevent the display from continuously executing the safety mode to consistently display the black screen.
1. An organic light-emitting diode display comprising:
a display module; and
a timing controller embedded in a set part separated from the display module by a predetermined distance, and configured to control a reset signal for cancelling a safety mode to be transmitted to the display module in order to prevent the safety mode from being abnormally maintained due to an influence of external noise on a cable used to connect the display module and the set part when the safety mode for displaying a black screen is executed.
2. The organic light-emitting diode display according to claim 1 , wherein the timing controller receives a pulse signal periodically generated by the display module, and when the pulse signal is not received from the display module for a set time, transmits a first reset signal to the display module.
3. The organic light-emitting diode display according to claim 2 , wherein the timing controller receives information on a level of a voltage applied to organic light-emitting diodes of the display module as a logic signal and, when the voltage applied to the organic light-emitting diodes is a normal voltage, performs a normal operation.
4. The organic light-emitting diode display according to claim 1 , wherein the timing controller and the display module perform encoding and decoding operations conforming to a high-bandwidth digital content protection standard for content protection when the safety mode is executed.
5. The organic light-emitting diode display according to claim 4 , wherein the timing controller waits to receive a safety mode cancellation signal according to completion of the high-bandwidth digital content protection encoding and decoding operations from the display module and transmits a reset signal to the display module when a standby time has elapsed.
6. The organic light-emitting diode display according to claim 5 , wherein the standby time set to wait for reception of the safety mode cancellation signal is set to be within a range of 5 to 10 seconds.
7. An operation method of an organic light-emitting diode display, the operation method comprising:
receiving a pulse signal periodically generated by a display module;
transmitting a first reset signal to the display module when the pulse signal is not received from the display module for a set time;
receiving information on a level of a voltage applied to organic light-emitting diodes of the display module as a logic signal and, when the voltage is a normal voltage, performing a normal operation;
receiving a safety mode cancellation signal from the display module executing a safety mode for displaying a black screen according to the first reset signal; and
transmitting a second reset signal to the display module when a time taken to receive the safety mode cancellation signal exceeds a set time due to an influence of external noise.
8. The operation method according to claim 7 , wherein the set time set for execution of the safety mode is set to be within a range of 5 to 10 seconds.
9. The operation method according to claim 7 , wherein the display module performs encoding and decoding operations conforming to a high-bandwidth digital content protection standard through communication with a set part for content protection when the safety mode is executed.