Abstract:
The touch display panel drive circuit provided by the present invention comprises a data line drive unit, a plurality of gate lines and a plurality of data lines, and a junction of two adjacent gate lines and two adjacent data lines forms a pixel region, and a pixel switch is located inside the pixel region; the touch display panel drive circuit further comprises a data line switch between the data line and the data line drive unit; as the data line drive unit does not output the data signal, an output of the data line switch is a high-impedance state, and the data line drive unit is disconnected with the pixel switch. The present invention can prevent the error reading phenomenon generated by the transistor leakage, and can enhance the display brightness and the stability of the display image, and promote the display effect of the touch display panel.
Abstract:
The present disclosure discloses a mutual capacitive in-cell display device and the driving method thereof. The mutual capacitive in-cell display device comprises: a first substrate; a touch panel, which is provided on the first substrate; a driver integrated circuit, which is used to send a first enable signal and a second enable signal; multiple gate lines, each gate line comprising a first switching transistor, the control terminal of the first switching transistor being connected to the driver integrated circuit; multiple data lines, each data line comprising a second switching transistor, the control terminal of the second switching transistor being connected to the driver integrated circuit. When the first switching transistor is turned on in responses to the first enable signal and the second switching transistor is turned on in response to the second enable signal in standby mode, the multiple data lines are connected to the touch panel to discharge.
Abstract:
The invention disclosure a full-in-cell touch screen panel and a mobile device including a plurality of the sensor pads arranged in a matrix, a plurality of date line arranged along the row direction of the matrix, a plurality of data driving devices connected to the data lines and a plurality of transistors formed on the data line, wherein one of the transistor of the plurality of the transistors is formed in each of the data line, the drain electrode of each transistor is connected to the corresponding data line, the gate electrodes of all of the plurality of the transistors are all connected to the specific enable terminal of the data driving device. According to the full-in-cell touch screen panel and its display apparatus, the electric charge coupled to the liquid crystal in the touch scanning period can be released.
Abstract:
The embodiment of the present disclosure provides a voltage conversion circuit including a voltage conversion module and a control module, the voltage conversion module includes a input terminal, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a first switch to thirteenth switch and a output terminal, the input terminal is used to connect the input power, the control module is connected with the voltage conversion module, the voltage conversion module is used to convert the voltage of the input power to different magnifications output voltage and output from the output terminal when the first capacitor, the second capacitor, the third capacitor and the fourth capacitor are charging and discharging. Further, the embodiment of the present disclosure further provides a liquid crystal display driving chip applied the voltage conversion circuit. The voltage conversion circuit may achieve multi-magnification voltage output, and improve the conversion efficiency of the voltage.
Abstract:
A driving method for a touch display device includes receiving a wake up signal and a display start signal; downloading an initialization code and a touch-control configuration code in order to finish a display initialization and touch operation initialization; and receiving display data and generating touch data being processed to finish a normal display and touch operation. A driving system is also disclosed, including a touch panel and an integrated driving chip used for driving the touch panel to perform a normal display and touch operation, wherein, the integrated driving chip for touching and displaying is configured to receive a wake up signal and a display start signal; download an initialization code and a touch-control configuration code in order to finish a display initialization and touch operation initialization; and receive display data and generating touch data being processed in order to finish the normal display and touch operation.
Abstract:
A display device includes a first switching unit conducting data signals of a first polarity to the first sub-pixel upon first enabling signal, a second switching unit conducting data signals of first polarity to the sixth sub-pixel upon second enabling signal, a third switching unit conducting data signals of first polarity to the seventh sub-pixel upon third enabling signal, a fourth switching unit conducting data signals of first polarity to the fourth sub-pixel upon fourth enabling signal, a fifth switching unit conducting data signals of second polarity to the fifth sub-pixel upon first enabling signal, a sixth switching unit conducting data signals of second polarity to the second sub-pixel upon second enabling signal, a seventh switching unit conducting data signals of second polarity to the third sub-pixel upon third enabling signal, and an eighth switching unit conducting data signals of second polarity to eighth sub-pixel upon fourth enabling signal.
Abstract:
A driving controlling method of liquid crystal panel pixels and a liquid crystal panel are disclosed. The method includes: a charging period being configured for switching one frame of the liquid crystal panel, and at least one charging period comprises a high-voltage charging phase and a voltage correction phase. Voltage amplitude within the high-voltage charging phase is larger than a predetermined voltage amplitude such that the liquid crystal panel pixels accumulate an amount of electricity within a shorter time period. The voltage amplitude within the voltage correction phase equals to a default voltage such that the voltage is precisely configured to be the default voltage. In this way, the liquid crystal panel pixels may quickly reach a default voltage so as to enhance the display performance of the liquid crystal panel.
Abstract:
A source drive circuit, a liquid crystal display panel and a method for driving the same are disclosed. The source drive circuit comprises a data temporary storage module used for generating a first driving signal based on a digital image signal; a digital to analog converting module used for performing digital to analog conversion on the first driving signal so as to obtain a first analog image signal; a buffering and amplifying module used for amplifying the first analog image signal so as to obtain a second analog image signal; and a screen cleaning module used for pulling down a signal output by the buffering and amplifying module according to a source selection signal, so that charge coupled with liquid crystal is released. In the source drive circuit, charge coupled with liquid crystal of the In-cell liquid crystal display panel when the panel is in a standby state due to touch detection scanning thereof can be effectively cleaned, and the case that the liquid crystal is polarized since it has a same polarity for a long time can be avoided.
Abstract:
The disclosure discloses an elimination method of parasitic capacitance and a device. During a touch scanning period, inputting a first simulation signal to source electrode lines and inputting a second simulation signal to multiplex lines can eliminate parasitic capacitance. Waveforms of the first simulation signal and a touch scanning signal input in a common electrode are identical or similar, waveforms of the second simulation signal and the touch scanning signal input in the common electrode are similar, waveforms of the third simulation signal and the touch scanning signal input in the common electrode are similar, a second simulation waveform includes a first target high level, a second target high level, a first target low level and a second target low level that are generated by different modules, the first target high level>the second target high level>the first target low level>the second target low level.
Abstract:
The present application discloses a driving method, a driving device and an in-cell touch screen, wherein the driving method including setting a first and a second Gamma value of the in-cell touch screen, wherein the first Gamma value is greater than the second Gamma value; dividing the display period of each frame into a display and a touch period; and if the touch operation detected by the in-cell touch screen meets the predetermined condition: in the display period, determining a first gray scale voltage based on the first Gamma value, and input the first gray scale voltage to a data signal line; in the touch period, determining a second gray scale voltage based on the second Gamma value, and input the second gray scale voltage to the data signal line of the in-cell touch screen to compensate for the brightness loss, and increase the uniformity and the visual experience.