Back to results
US 11,538,374 B2Granted
Power voltage generator, display apparatus having the same and method of driving the same
AssigneeSamsung Display Co., Ltd.
InventorsSung Soo Choi, Dae-Sik Lee, Ji Youn Seo, Gwang Soo Ahn, Jong Jae Lee, Geun Hyuk Choi
Life of this patent
Estimating the term…
Abstract
A power voltage generator includes a voltage sensor and a power controller. The voltage sensor is configured to sense a first voltage in a first charge sharing period of a gate clock signal and a second voltage in a second charge sharing period of the gate clock signal. The power breaker is configured to disconnect a power based on the first voltage and the second voltage.
Claims20
A power voltage generator comprising:
- a voltage sensor which senses a first voltage in a first charge sharing period of a gate clock signal and a second voltage in a second charge sharing period of the gate clock signal;
- and
- a power breaker which disconnects a power based on a difference between the first voltage and the second voltage,
- wherein the first charge sharing period and the second charge sharing period are discrete from and nonoverlapping with each other.
1 more element
A display apparatus comprising:
- a display panel including a gate line, a data line, and a pixel electrically connected to the gate line and the data line, wherein the display panel displays an image based on input image data;
- a gate driver which outputs a gate signal to the gate line;
- a data driver which outputs a data voltage to the data line;
- and
- a power voltage generator which provides driving voltages to the display panel, the gate driver and the data driver,
- wherein the power voltage generator comprises:
- a voltage sensor which senses a first voltage in a first charge sharing period of a gate clock signal and a second voltage in a second charge sharing period of the gate clock signal;
- and
- a power breaker which stops providing the driving voltages based on a difference between the first voltage and the second voltage, and
- wherein the first charge sharing period and the second charge sharing period are discrete from and nonoverlapping with each other.
7 more elements
A method of driving a display apparatus, the method comprising:
- generating a gate clock signal based on a gate clock control signal;
- providing the gate clock control signal to a gate driver;
- sensing a first voltage in a first charge sharing period of the gate clock signal;
- sensing a second voltage in a second charge sharing period of the gate clock signal;
- detecting a short between gate clock signal lines based on a difference between the first voltage and the second voltage;
- and
- stopping providing a power to the display apparatus when the short between the gate clock signal lines is detected,
- wherein the first charge sharing period and the second charge sharing period are discrete from and nonoverlapping with each other.
5 more elements
Dependencies are inferred from the claim text.