| 摘要 |
A touch display apparatus includes a touch driver and a display driver. The touch driver outputs touch signals to drive a touch panel. The display driver outputs scan signals to drive a display panel. A display driver has a plurality of shift registers, and each of the plurality of shift registers includes a pull-up unit, a driving unit, a pull-down unit and a holding unit. The pull-up unit is electrically connected to a driving node for outputting a driving voltage. The driving unit is electrically connected to the driving node for outputting a first scan signal according to a clock. A pull-down unit is electrically connected to the driving node and the output terminal, for pulling down the voltage level of the driving voltage and the first scan signal, respectively. The holding unit is electrically connected to the driving node. |
| 主权项 |
1. A touch display apparatus, comprising:
a touch driver for outputting a plurality of touch driving signals to drive a touch panel; a display driver for outputting a plurality of scan signals to drive a display panel, the display driver having a plurality of shift registers, a Nth shift register comprising:
a pull-up unit electrically connected to a driving node, for outputting a driving voltage to the driving node;a driving unit electrically connected to the driving node, for outputting a Nth scan signal according to a clock;a pull-down unit electrically connected to the driving node and the output terminal, for pulling down the voltage level of the driving voltage and the output terminal respectively according to the Nth scan signal and a Mth scan signal, wherein N, M are positive integers and M is greater than N; anda holding unit electrically connected to the driving node, wherein in a stop-displaying interval after the outputting a (N−1)th scan signal, the holding unit is enabled according to an enabling signal to maintain the voltage level of the driving voltage, and the clock is disabled to disable the Nth scan signal, and after the stop-displaying interval, the enabling signal is disabled and the clock is enabled to enable the Nth scan signal. |
