摘要:
A gate driver for controlling a display apparatus is provided. The gate driver includes a logic circuit, a plurality of buffers, and a charge sharing module. The logic circuit generates a plurality of switch signals. The buffers are coupled to the logic circuit. Each of the buffers determines to provide a first voltage or a second voltage according to one of the switch signals to generate a gate driving signal. The charge sharing module is coupled to the output ends of the buffers and allows the output ends of the buffers to share charges according to a plurality of sharing signals during a forward edge and a backward edge of a square wave of each of the gate driving signals. Furthermore, a gate driving method for controlling a display apparatus is also provided.
摘要:
A gate driver for controlling a display apparatus is disclosed. The gate driver includes a logic circuit for generating a plurality of switch signals, a breaking signal and a plurality of sharing signals, a plurality of buffers, each for determining to provide a first voltage or a second voltage according to one of the plurality of switch signals to generate a gate driving signal, and a charge recycle module for sharing charges with a plurality of loads according to the plurality of sharing signals.
摘要:
An image display system is provided. The image display system includes a level shifter including a first voltage adjusting circuit and a second voltage adjusting circuit. The first voltage adjusting circuit adjusting the voltage of an input signal, includes a small signal input terminal receiving the input signal and a differential output terminal outputting a pair of differential signals. The available voltage ranges of the differential signals are larger than that of the input signal. The second voltage adjusting circuit, coupled to the first voltage adjusting circuit, includes a first input terminal and a second input terminal respectively receiving the pair of differential signals. The second adjusting circuit adjusts the voltage of the differential signals and generates an output signal. The available voltage range of the output signal is larger than that of the differential signals.
摘要:
A system for displaying images includes a touch sensing circuit. The touch sensing circuit comprises a voltage storage unit for detecting whether a touch event has occurred and generates a corresponding voltage. The voltage storage unit comprises first to third capacitors. The first capacitor has a first terminal coupled to a ground terminal and a second terminal coupled to a first node. The second capacitor has a first terminal coupled to the ground terminal and a second terminal coupled to a second node. When the voltage storage unit detects that a touch event has occurred, the second node is coupled to an AC voltage. The third capacitor is formed between the first and second nodes. When the touch event has occurred, a value of the third capacitor is changed, so that the corresponding voltage at the first node is changed.
摘要:
A gate driver for controlling a display apparatus is disclosed. The gate driver includes a logic circuit for generating a plurality of switch signals, a breaking signal and a plurality of sharing signals, a plurality of buffers, each for determining to provide a first voltage or a second voltage according to one of the plurality of switch signals to generate a gate driving signal, and a charge recycle module for sharing charges with a plurality of loads according to the plurality of sharing signals.
摘要:
A multiple common voltage driving method adapted for a display is provided. The driving method includes following steps: taking a common-voltage switching time unit as a repeating time unit to provide a common voltage to define a reference voltage of the display. The common-voltage switching time unit has a plurality of different types of common-voltage pattern periods. A time length of each of the common-voltage pattern periods includes at least one frame. During the different types of the common-voltage pattern periods, the provided common voltage has different AC voltage swings or different DC voltage levels.
摘要:
A display driving circuit adapted to drive multiple display channels of a display panel is provided. The display channels include a first set channel, a second set channel, a third set channel, and a fourth set channel respectively having an alternate change between a first voltage polarity and a second voltage polarity. Adjacent two set channels are operated by the first voltage polarity and second voltage polarity. A switching unit has four switches respectively connected to adjacent two of the four set channels. A switch control circuit conducts the four switches in a sequence. In a first stage, anyone of the switches is conducted for a period. In a second stage, other two switches connected to two terminals of the conducted switch are conducted for a period. In a third stage, another switch serially connected between the two conducted switches in the second stage is conducted for a period.
摘要:
Image display systems are provided, in which a touch sensing circuit includes at least one voltage storing unit to generate a corresponding voltage when a capacitance variation caused by a touch event occurs. The voltage storing unit includes a first capacitor having a first terminal coupled to an alternating current (AC) common voltage from a common electrode and a second terminal coupled to a first node, a first switching element having a first terminal coupled to the second terminal of the first capacitor and a second terminal coupled to the AC common voltage, and a second switching element having a first terminal coupled to the second terminal of the first capacitor.
摘要:
A gate driver for controlling a display apparatus is provided. The gate driver includes a logic circuit, a plurality of buffers, and a charge sharing module. The logic circuit generates a plurality of switch signals. The buffers are coupled to the logic circuit. Each of the buffers determines to provide a first voltage or a second voltage according to one of the switch signals to generate a gate driving signal. The charge sharing module is coupled to the output ends of the buffers and allows the output ends of the buffers to share charges according to a plurality of sharing signals during a forward edge and a backward edge of a square wave of each of the gate driving signals. Furthermore, a gate driving method for controlling a display apparatus is also provided.
摘要:
An image display system is disclosed. A gate driver drives includes a first side driving circuit and a second side driving circuit. The first and the second side driving circuits are disposed on the both sides of the pixel array. A first shift register receives a first shifted signal to generate a second shifted signal such that the gate driver drives a first row of pixels. A second shift register receives a third shifted signal to generate a fourth shifted signal. A third shift register is coupled to the second shift register and receives the fourth shifted signal to generate a fifth shifted signal such that the gate driver drives a second row of pixels. The first and the third shifted signals are simultaneously generated according to a vertical start pulse, and the second and the fourth shifted signals are simultaneously output.