Beijing Boe Optoelectronics Technology Co., Ltd.

Boe Technology Group Co., Ltd.

Guangdong Oppo Mobile Telecommunications Corp., Ltd.

Beijing Boe Optpelectronics Technology Group Co., Ltd.

Tao Ren

Haisheng Wang

Yingming Liu

Xiaoliang Ding

Xue Dong

Shengji Yang

Weijie Zhao

Hongjuan Liu

Xiaochuan Chen

Wei Liu

Lei Wang

Changfeng Li

Pengpeng Wang

Chunlei Wang

Cheng Li

Zhen Liu

Feng Bai

Ruiyong Wang

Yiming Zhao

Hailin Xue

Xiaobo Xie

Rui Xu

An in-cell touch panel, a display device and a driving method thereof. The in-cell touch panel includes: an array substrate and an opposing substrate that are arranged opposite to each other; touch detection electrodes; touch-pressure sensing electrodes disposed between a layer provided with the touch detection electrodes and a base substrate of the array substrate. A capacitor structure is formed by the touch-pressure sensing electrodes and a metal layer disposed below the array substrate; and a touch detection chip configured to simultaneously apply touch detection signals to the touch detection electrodes and the touch-pressure sensing electrodes in a touch period, determine a touch position by detecting capacitance variations of the touch detection electrodes, and determine a touch pressure value by detecting capacitance variations of the touch-pressure sensing electrodes.

In-cell touch panel, display device and driving method thereof

A touch display panel having a pressure detecting function, a display device and a driving method are provided. The touch display panel includes: an array substrate and a counter substrate that are arranged opposite to each other; a plurality of touch electrodes disposed on the counter substrate and a touch electrode wiring electrically connected to each of the touch electrodes; a plurality of pressure detecting electrodes disposed on the counter substrate or the array substrate and a pressure detecting electrode wiring electrically connected to each of the pressure detecting electrodes, wherein any one of the pressure detecting electrodes overlaps with at least one of the touch electrodes in a direction perpendicular to the counter substrate, and with respect to the pressure detecting electrode, the touch electrode is closer to a light exit side of the touch display panel.

Touch display panel having pressure detecting function, display device and driving method

The present disclosure provides in some embodiments a display substrate having a touch function, a method for driving the display substrate and a display apparatus. The method includes steps of: dividing touch driving electrodes included in the display substrate and parallel to gate lines into N portions, wherein each portion of the touch driving electrodes is arranged in a direction perpendicular to the gate lines, and N is a positive integer greater than or equal to 2; and resetting pixels corresponding to an nportion of the touch driving electrodes before a touch driving for the nportion is started, so that the pixels have a same grey scale value, wherein n is a positive integer greater than or equal to 1 and less than or equal to N.

Display substrate having touch function, method for driving the same and display apparatus

An OLED display substrate, a driving method thereof and an OLED display device. The OLED display substrate includes: a base substrate and a first electrode layer, a light-emitting layer and a second electrode layer disposed on the base substrate, the light-emitting layer being disposed between the first electrode layer and the second electrode layer, the first electrode layer including a driving electrode and a sensing electrode corresponding to the driving electrode, and a mutual capacitance being formed between the driving electrode and the sensing electrode corresponding to the driving electrode. A mutual capacitance is formed between the driving electrode and the sensing electrode corresponding to the driving electrode, so as to integrate a touch technology and an OLED display technology.

OLED display substrate, driving method thereof, and OLED display device

A touch substrate includes a first transparent electrode layer, a transparent flexible dielectric layer and a second transparent electrode layer. The first transparent electrode layer comprises first touch detection electrodes arranged in an array and insulated from each other. During the touch detection period, a first touch detection signal is loaded simultaneously to the first and second transparent electrode layer, and the touch position can be determined by detecting a change in the capacitance value of each of the first touch detection electrodes. During the pressure detection period, a second touch detection signal may be loaded to one of the first transparent electrode layer and the second transparent electrode layer, and the pressure in the z direction perpendicular to the surface of the touch screen can be determined by detecting a change in the capacitance value between each of the first touch detection electrodes and the second transparent electrode layer.

Touch module that detects capacitance caused by pressure at touch position, driving method thereof, and display device

The disclosure provides a palmprint recognition circuit based on a LTPS technology, a palmprint recognition method and a display screen. The palmprint recognition circuit comprises an optical signal collecting unit, configured to collect an optical signal indicating a palmprint information and convert the collected optical signal into a current signal; a current signal amplifying unit, configured to amplify the converted current signal; and a current signal detecting unit, and configured to detect an intensity of the amplified current signal which indicates a ridge line or a valley line of the palmprint in the palmprint information. Therefore, it can solve the problem of having no palmprint recognition circuit and method for a LTPS-TFT display panel. This can eliminate an influence of a change of parasitic capacitance on the recognition result, wherein the change of parasitic capacitance is caused by a change of a wiring manner in the circuit.

Palmprint recognition circuit based on LTPS technology, a palmprint recognition method and a display screen

The present invention provides a touch screen, a driving method thereof, and a display apparatus. The touch screen includes a liquid crystal cell formed by assembling an array substrate and a color filter substrate and a fixed electrode provided at a side of the array substrate distal to the color filter substrate, and further includes a common electrode provided on the array substrate and a shielding electrode provided at a side of the common electrode distal to the fixed electrode, the common electrode serves as a first drive electrode in force touch, a position of the fixed electrode corresponds to that of the common electrode, and the fixed electrode is configured to assist the first drive electrode to detect a touch force in force touch.

Touch screen and driving method thereof, and display apparatus

Disclosed is a fingerprint detection circuit comprising at least one fingerprint detection unit, a high level signal line, a low level signal line and an output unit, the fingerprint detection unit includes a charging switch, a discharging switch and an input energy storing unit. An output terminal of the charging switch is connected to an input terminal of the discharging switch, a cathode of the photodiode is electrically connected to an input terminal of the charging switch, an output terminal of the discharging switch serves as an output terminal of the fingerprint detection unit, one terminal of the input energy storing unit is electrically connected to the output terminal of the charging switch, the other terminal of the input energy storing unit is electrically connected to the low level signal line, an input terminal of the output unit is electrically connected to the output terminal of the fingerprint detection unit.

Fingerprint detection circuit and driving method thereof, and display device

A touch panel, a display device and a driving method thereof are provided. In the touch panel, a transparent conductive layer is arranged on a side of an array substrate away from an opposite substrate. The transparent conductive layer, functioning as a shielding layer, and touch detection electrodes are applied with an identical touch detection signal at a touch stage. A capacitor is formed by the shielding layer and a metal layer below the touch panel, and a change in distance from the touch panel to the metal layer due to deformation of the touch panel pressed by a finger only affects capacitance between the shielding layer and the metal layer and causes a change in the touch detection signal applied to the shielding layer, while capacitances of the touch detection electrodes are not affected. Therefore, the accuracy of touch sensing is effectively improved.

Touch panel, display device and driving method thereof

The present disclosure provides a pressure-sensitive panel and a detection method thereof, a 3D touch panel and a touch display panel. The pressure-sensitive panel includes a pressure-sensitive layer. The pressure-sensitive layer includes a plurality of pressure-sensitive units, and each pressure-sensitive unit includes four resistors, a first voltage detection unit and a second voltage detection unit. The four resistors of each pressure-sensitive unit are connected with each other in sequence; two short sides of the first resistor are respectively connected with one long side of the second resistor and the fourth resistor; and two short sides of the third resistors are connected with the other long side of the second resistor and the fourth resistor. A connecting end between the first resistor and the fourth resistor is connected with a first fixed voltage end, and a connecting end between the second resistor and the third resistor is connected with a second fixed voltage end. The first voltage detection unit is connected with a connecting end between the first resistor and the second resistor, and the second voltage detection unit is connected with a connecting end between the third resistor and the fourth resistor. The pressure-sensitive panel can detect the pressing force of a user.

Pressure-sensitive panel and detection method thereof, 3D touch panel and touch display panel

The disclosure provides a touch display panel, a driving method and a touch display device. The panel includes: a plurality of first electrode groups arranged in a first direction and a plurality of second electrode groups arranged in a second direction, wherein each first electrode group includes a plurality of first electrodes arranged in the second direction, and each second electrode group includes a plurality of second electrode subgroups disposed adjacent to each other and arranged in the second direction, each of the second electrode subgroups including a plurality of second electrodes arranged in the first direction; and wherein the first and second electrodes are disposed in different layers respectively, and projections of the second electrodes on the layer in which the first electrodes are disposed do not overlap with the first electrodes and are alternately arranged with the first electrodes in both the first and second directions.

Touch display panel, driving method for the same and touch display device

A touch substrate, a display device and a driving method thereof, touch pressure driving electrodes and touch pressure sensing electrodes provided between the layer where the touch detecting electrodes is located and the substrate carrier are added within the touch substrate, and the touch pressure sensing electrodes and the touch pressure driving electrodes constitute a mutual-capacitance structure. When the touch substrate is pressed, the distance between the touch substrate and the underlying metal layer becomes small, causing that capacitance value of the mutual-capacitance structure becomes small. During the time period for detecting pressure, through applying the touch driving signal to the touch pressure driving electrodes to detect the change of signal amount of the touch pressure sensing electrodes caused by the pressure on the touch position, the change of the capacitance value of the mutual-capacitance structure can be determined to achieve the function of pressure sensing. During the time period for detecting touching, the touch detecting electrodes, the touch pressure driving electrodes, and the touch pressure sensing electrodes are applied with the same touch detecting signal simultaneously, the touch position can be determined by detecting the change of the capacitance value of each of the touch detecting electrodes, and the function of the two-dimensional detection of touching can be realized.

Touch substrate, display device and driving method thereof

Embodiments of the invention provide a self-capacitance touch liquid crystal grating, a manufacturing method thereof, a driving method thereof, a self-capacitance touch liquid crystal 3D display panel, and a self-capacitance touch liquid crystal 3D display device. In the grating provided by embodiments of the present invention, as orthographic projections of strip-shaped electrodes on a sensing electrode layer are respectively located in row spacing areas or column spacing areas formed through sensing electrodes arranged in a matrix form, the sensing electrode-to-earth capacitance is located between a surface-shaped electrode and the sensing electrodes, and the strip-shaped electrode will not cause the sensing electrode-to-earth capacitance to be increased. Therefore, RC loading of the sensing electrodes can be largely reduced, and also the interference between the sensing electrodes and the grating can be avoided, so that touch operations will not interfere with operations of the grating.

Self-capacitance touch liquid crystal grating, manufacturing method thereof, driving method thereof, display panel and display device

The present invention provides a touch display panel and a display device. The touch display panel includes a substrate, which is provided thereon with a common electrode layer, a thin film transistor, and a data line and a pixel electrode connected with the thin film transistor. The common electrode layer includes a touch driving electrode and a common electrode which are insulated and spaced apart from each other. The array substrate further includes a shielding layer, which shields a spacing region between the touch driving electrode and the common electrode corresponding to position of the data line, thereby greatly reducing noise generated when the source and the data line are being charged, and in turn enabling the touch and the display of the touch display panel to be performed simultaneously.

Touch display panel and display device

The present disclosure provides an array substrate for an organic light-emitting diode (OLED) display panel. The array substrate includes a substrate, a thin film transistor (TFT) layer comprising a plurality of TFTs, and an anode layer comprising a plurality of anode electrodes. The array substrate also includes an organic layer comprising a plurality of organic units corresponding to anode electrodes, and a cathode layer comprising a plurality of touch electrodes for a time-sharing operation. Each touch electrode corresponds to a portion of the plurality of organic units, the plurality of the touch electrodes being arranged to be applied with a normal cathode voltage in a displaying period and to be applied with a touch cathode voltage in a touch-sensing period.

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Beijing, China

Tao Ren