Driving apparatus of light emitting diode display device for compensating emission luminance gap
A driving apparatus of a light emitting diode (LED) display device is provided. The driving apparatus includes a timing control circuit. The timing control circuit outputs a plurality of driving control signals to a gate driving circuit on an LED display panel of the LED display device. Wherein, the plurality of driving control signals includes a first driving control signal and a second driving control signal, and the pulse width of the first driving control signal in a first horizontal line period is different from the pulse width of a second driving control signal in a second horizontal line period preceding to the first horizontal line period.
1. A driving apparatus of a light emitting diode (LED) display device, comprising:
a timing control circuit, outputting a plurality of driving control signals to a gate driving circuit on an LED display panel of the LED display device, wherein the plurality of driving control signals comprises a first driving control signal and a second driving control signal, and in response to a gray level difference between image data corresponding to a target horizontal line in a first frame and image data corresponding to the target horizontal line in a second frame preceding to the first frame being determined to be greater than a threshold value, the pulse width of the first driving control signal in a first horizontal line period is configured to be different from the pulse width of a second driving control signal in a second horizontal line period preceding to the first horizontal line period.
2. The driving apparatus according to claim 1 , wherein the plurality of driving control signals comprises at least two gate clock signals or at least two initialization clock signals.
3. The driving apparatus according to claim 1 , wherein the first horizontal line period and the second horizontal line period are configured to be of the same period length, and the pulse width of the first driving control signal is configured to be less than the pulse width of the second driving control signal.
4. The driving apparatus according to claim 1 , wherein the period length of the first horizontal line period is configured to be greater than a normal period length, and the pulse width of the first driving control signal is configured to be greater than the pulse width of the second driving control signal.
5. The driving apparatus according to claim 1 , wherein the plurality of driving control signals are gate clock signals, and the first horizontal line period is a period during which the image data corresponding to the target horizontal line in the first frame are output to the target horizontal line.
6. The driving apparatus according to claim 1 , wherein the plurality of driving control signals are initialization clock signals and the first horizontal line period is preceding to a horizontal line period during which the image data corresponding to the target horizontal line in the first frame are output to the target horizontal line.
7. The driving apparatus according to claim 1 , wherein the pulse width of each of the plurality of driving control signals in a first duration, which is from the first horizontal line period to a third horizontal line period later than the first horizontal line period, is configured to be different from the pulse width of the second driving control signal in the second horizontal line period.
8. A driving apparatus of a light emitting diode (LED) display device, comprising:
a voltage regulator circuit, outputting an initialization voltage to the LED display panel of the LED display device,
wherein in response to a gray level difference between image data corresponding to a target horizontal line in a first frame and image data corresponding to the target horizontal line in a second frame preceding to the first frame being determined to be greater than a threshold value, the initialization voltage is configured to have a first voltage level in at least a first horizontal line period, and
wherein the first voltage level is different from a second voltage level that the initialization voltage is configured to have in a second horizontal line period preceding to the first horizontal line period.
9. The driving apparatus according to claim 8 , wherein the initialization voltage is configured to have the first voltage level lasting for a predetermined length in the first horizontal line period, and wherein the predetermined length is determined according to the pulse width of an initialization clock signal in the first horizontal line period.
10. The driving apparatus according to claim 8 , wherein the initialization voltage is configured to have the first voltage level lasting for a predetermined length longer than the first horizontal line period.
11. The driving apparatus according to claim 8 , wherein the first horizontal line period is preceding to a horizontal line period during which the image data corresponding to the target horizontal line in the first frame are output to the target horizontal line.