Focaltech Systems, Ltd.

Focaltech Electronics, Ltd.

Focaltech Systesm, Ltd.

Xinxi Jiang

Lianghua Mo

Hua Li

Peng Wang

Junqiao Liu

Huaiyi Xu

Peng Zhang

Chen Li

Jingkai Zhang

Jincheng Tian

Huadong Dai

Chien Kuo Wang

Ningning Cai

A touch display apparatus, a corresponding driving circuit, and a driving method are provided. The touch display apparatus includes a driving circuit configured to, during the touch sensing stage, provide a first signal to a common electrode for realizing touch detection during the touch sensing stage, a second signal used to control a thin film transistor of the touch display apparatus to be switched off and is used to decrease charge and discharge capacity of a capacitor formed by the common electrode and the gate line, and a third signal used to decrease charge and discharge capacity of a capacitor formed by the common electrode and a data line. The third signal is used to control the data line to enter a floating state during the touch sensing stage.

Touch display apparatus, driving circuit, and driving method

A data transmission method, a processor and a terminal. The method in the embodiments of the present invention comprises: converting, by a processor, RGB data into Pentile data; sending, by the processor, the Pentile data which is obtained after conversion to a display drive system, so that the display drive system sends a drive signal, into with the Pentile data is converted, to a display system. Therefore, there is no need to use an additional chip, thereby saving the costs of hardware, and reducing the power consumption and electric power consumption of transmission.

Data transmission method, processor and terminal

Provided is a driving circuit for a touch display apparatus. The driving circuit includes: a main control unit, providing image data for image display at a first speed; a driving unit, receiving the image data and sending display data to the touch display apparatus according to the received image data; a data buffering module, disposed in the driving unit, sending the display data at a second speed higher than the first speed, and forming, due to the difference between the second speed and the first speed, a pause time for stopping sending the display data to the touch display apparatus during the process that the main control unit provides the image data; and a touch detection unit, performing touch detection of the touch display apparatus in the pause time.

Touch display apparatus, driving circuit thereof and driving method therefor, and electronic apparatus

A touch display apparatus, a corresponding driving circuit, and a driving method. The touch display apparatus includes a common electrode between a first substrate and a second substrate, and a driving circuit used as a touch sensing electrode during a touch sensing phase. The driving circuit is used for providing a first signal for touch detection to the common electrode. The driving circuit is also used for providing a second signal to a gate line during the touch sensing phase, said second signal enabling a thin-film transistor to be in off mode and decreasing the charge-discharge capacity of a capacitor formed by the common electrode and a gate line. The driving circuit is also used for providing a third signal during the touch sensing phase, the third signal decreasing the charge-discharge capacity of a capacitor formed by the common electrode and a data line.

The present invention discloses a liquid-crystal display screen with touch-control function and a manufacturing method thereof and an electronic apparatus. The liquid-crystal display screen includes a first sensing electrode and a second sensing electrode, which are included in a common electrode in display electrodes of the liquid-crystal display screen, and are connected to a touch detection unit. Furthermore, the touch detection unit and a display control unit operate in a timesharing manner. In this way, in the touch-control display screen, the common electrode may also be used as an electrode for detecting a touch on the touch-control display screen, and the structure of the display screen is simplified. Moreover, the touch-control display screen has a better light transmittance and the detecting for the touch and the control for the display may not interact with each other.

Liquid-crystal display screen with touch-control function and manufacturing method thereof and electronic apparatus

A driving circuit includes: a clock signal generating unit, for generating clock signals, where transitions from first level to second level, in each clock signal, trigger a scan driving circuit to generate scanning signals, the transitions from first level to second level are defined as effective signal edges of the clock signals, and an interval between adjacent effective signal edges is defined as a clock time interval; and a control unit, for controlling clock time intervals of each clock signal to be non-identical, the clock time intervals including a first clock time interval and second clock time interval, the second clock time being longer than the first clock time, and the control unit is configured to control the clock time interval to be the second clock time interval at least once during displaying one frame of image by a display panel.

Driving circuit, driving method, display apparatus and electronic apparatus

A touch-control method for a liquid crystal display device, includes: switching from a display mode to a touch-control mode; determining whether there is a touch made by an object or whether there is an input made by an active pen; in the case where there is the input made by the active pen, starting an active pen detecting sub-mode in which an X-axis direction common electrode of the liquid crystal display device is defined as an X-axis direction receiving electrode, and a Y-axis direction common electrode or a signal electrode is defined as a Y-axis direction receiving electrode; and determining a position or an action of the active pen according to amplitudes of signals of the X-axis direction receiving electrode and the Y-axis direction receiving electrode. A touch-controllable liquid crystal display device is further provided.

Touch-control method for liquid display device and touch-controllable liquid crystal display device

A touch display screen, a method for manufacturing a display electrode of the touch display screen, a display electrode and an electronic device are described. In the touch display screen, the electrode in the first direction and the electrode in the second direction are connected to the touch detecting unit, and the touch detecting unit and the display control unit operate in a time-sharing manner. Thus, a part of the display electrode can be multiplexed, and it is unnecessary to provide an additional touch-sensitive layer to detect the touch on the touch display screen, so the structure of the touch display screen is simplified; because the touch-sensitive layer is omitted, the touch display screen has better transmittance; and because the touch detecting unit and the display control unit operate in a time-sharing manner, the detection on the touch and the control on the display will not affect mutually.

Touch display screen, method for manufacturing display electrode of the touch display screen, display electrode and electronic device

It is provided a touch screen device applied in an electronic information technology area. In the touch screen device supporting an active capacitance stylus, a demodulation unit demodulates a signal received by a reception unit by two orthogonal signals, and then an amplitude recovery unit recovers an amplitude of the signal received by the reception unit, the amplitude of the signal received by the reception unit can be recovered relatively exactly without the need that the demodulation signal must be synchronous with the signal received by the reception unit (or the signal transmitted from the active capacitance stylus), and there is no need to add additional hardware resources for synchronization in the touch screen device of the embodiment of the present invention compared with the existing detection method which needs to perform synchronization of the demodulation signal and the signal transmitted from the active capacitance stylus in the prior art.

Touch screen device

The embodiments of the present invention disclose a touch stylus, a touch detection method and a touch detection system, which are suitable to be used for writing on a capacitive touch screen and can increase the success rate of touch. A method according to an embodiment of the present invention includes: receiving, by a sensing electrode, a square wave signal sent from a stylus tip of a touch stylus; performing a detection process on the square wave signal, by a sensing detection unit, the sensing detection unit having a clock synchronized with a clock of the touch stylus; determining, by a signal processing unit, whether a touch event occurs according to the square wave signal processed with the detection process; and calculating position coordinates of the touch event and reporting the position coordinates to a system control unit, by the signal processing unit, if a touch event occurs.

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Guangdong, China

Xinxi Jiang