Focaltech Systems, Ltd.

Focaltech Electronics, Ltd.

Other

Focaltech Systesm, Ltd.

Lianghua Mo

Xinxi Jiang

Hua Li

Junqiao Liu

Jie Liu

Peng Wang

Jingkai Zhang

Chen Li

Haijun Hu

Huaiyi Xu

Zhi Liu

Peng Zhang

Yan Guo

Guang Ouyang

Wenping Liu

Ningning Cai

Jincheng Tian

Chien Kuo Wang

Huadong Dai

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

An electronic device with a fingerprint sensing function and a method for calling an application are provided. The electronic device includes a fingerprint sensing region, a fingerprint sensing module and a control module. The fingerprint sensing module is configured to sense fingerprint input information input in the fingerprint sensing region. The control module is configured to recognize current state of the electronic device, provide a first driving signal to the fingerprint sensing module if the electronic device is in one of N preset states, to drive the fingerprint sensing module to sense fingerprint, receive fingerprint input information fed back by the fingerprint sensing module, judge whether the fingerprint input information is valid, and determine whether to call a corresponding application based on judgment result, where N is a positive integer. Response speed of the provided electronic device in calling applications is fast and high safety is ensured.

Driving circuit, driving method, display apparatus and electronic apparatus

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.

A display device is provided. The display device includes: a display panel provided with a plurality of display electrodes, where the display electrodes are configured for displaying images, display electrodes located within a predetermined region of the display panel are defined as first electrodes, the first electrodes are configured for fingerprint sensing, and a stage during which the first electrodes perform the fingerprint sensing is defined as a fingerprint sensing stage; and a driving circuit configured to, provide display signals to the display electrodes to display the images, and provide a fingerprint sensing signal to the first electrodes during the fingerprint sensing stage and perform a self-capacitance detection on the first electrodes, to implement the fingerprint sensing. A driving circuit, a method for driving the display device, a liquid crystal display device and an electronic apparatus including the display device are provided.

Display device, driving circuit, method for driving display device, and electronic apparatus

Provided are an electric field type fingerprint identification apparatus and a state control method and a prosthesis identification method. The electric field type fingerprint identification apparatus includes a signal acquisition module and a signal processing module. In a case that a measuring state signal processing unit is electrically connected to a signal acquisition unit, a to-be-measured state signal processing unit is at least electrically connected to at least one signal acquisition unit peripheral to the signal acquisition unit in a measuring state. Charging and discharging processes of sensing capacitors electrically connected to the measuring state signal processing unit and the to-be-measured state signal processing unit are coordinated to restrain charging and discharging quantities of a parasitic capacitor between the signal acquisition unit in the measuring state and the signal acquisition unit in a to-be-measured state.

Electric field-type fingerprint identification apparatus and state control method and prosthesis identification method thereof

An electronic apparatus with fingerprint sensing function, a driving circuit, and a method for driving the electronic apparatus are provided. The electronic apparatus includes: a first fingerprint sensor adapted to perform fingerprint sensing; a second fingerprint sensor adapted to perform fingerprint sensing; and a driving circuit. The driving circuit provides a first fingerprint detection signal to the first fingerprint sensor for performing fingerprint detection, and determines whether to control the electronic apparatus to perform a first function, based on fingerprint detection information from the first fingerprint sensor; and provides a second fingerprint detection signal to the second fingerprint sensor for performing fingerprint detection, and determines whether to control the electronic apparatus to perform a second function, based on fingerprint detection information from the second fingerprint sensor. With above technical solution, security for usage of the electronic apparatus is improved.

Electronic apparatus with fingerprint sensing function, driving circuit, and method for driving electronic apparatus with fingerprint sensing function

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.

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 control display device is provided according to embodiments of the disclosure. The touch control display device includes: a first substrate, a second substrate, a liquid crystal layer disposed between the first substrate and the second substrate, a common electrode and a plurality of pixel units; and a plurality of touch sensing electrodes disposed above the common electrode, where the plurality of touch sensing electrodes are arranged in a two-dimensional array. With the solution according to the embodiments of the disclosure, the noise can be reduced and the frame rate of touch detection scan can be enhanced.

Touch display device

It is provided a noise reduction method, device and system on the basis of touch detection of a capacitive screen. The noise reduction method includes: sending a first scanning waveform to all receiving terminals by a first sending terminal and then sending a second scanning waveform to all the receiving terminals by a second sending terminal during a detection time period, wherein the phase of the first scanning waveform is continuous with that of the second scanning waveform and the first scanning waveform has a same frequency as that of the second scanning waveform; and filtering a signal received by the receiving terminals after demodulating it. Non-gap scanning can be achieved by performing continuation process to the scanning waveform, i.e. by achieving that the phases are continuous and the frequencies are the same.

Noise reduction method, device and system on the basis of touch detection of a capacitive screen

A touch screen apparatus and a processing method thereof. In the touch screen apparatus according to the embodiment of the invention, a frequency spectrum analyzing unit determines that a frequency domain signal of a signal received by a receiving unit in the touch screen apparatus or of a signal obtained by processing the signal received by the receiving unit for at least once includes a predetermined noise signal feature, and then a frequency control unit controls the frequency of the signal sent by a sending unit, so that there is as little interference of the noise as possible when the sending unit performs transmission.

Touch screen apparatus and processing method thereof

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.

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Guangdong, China

Lianghua Mo