Samsung Display Co., Ltd.

Samsung Mobile Display Co., Ltd.

Ulsan National Institute of Science and Technology

Soon-Sung Ahn

Do-Youb Kim

Yong-Sung Park

Deok-Young Choi

In-Ho Choi

Brent Jang

Sung-Un Park

Joo-Hyeon Jeong

Ja-seung Ku

Hyoung-Wook Jang

Hyung-Soo Kim

Tae-Jin Kim

Ki-Ju Im

In-ho Choi

Won-Kyu Kwak

Sang-Moo Choi

Keum-Nam Kim

Chul-Kyu Kang

Choon-Hyop Lee

Do-Ik Kim

Jung-Yun Kim

Franklin Don Bien

Ja-Seung Ku

Dong-Wook Choi

Kyeong-Hwan Park

Young-Hee Nam

Sun-A Yang

Jae-Joon Kim

Sang-Hyune Heo

A touch panel including a base portion having a thickness that varies according to applied pressure; a first conductive pattern unit disposed on a first surface of the base portion and including first conductive patterns; and a second conductive pattern unit disposed on a second surface of the base portion opposing the first conductive pattern and including second conductive patterns that overlap with the first conductive patterns. Each of the first conductive patterns includes regions overlapping with the second conductive patterns, and in one of the overlapping regions, an amount of overlapping area between the first conductive pattern and the second conductive pattern decreases the farther away radially the overlapping area is from a center point of the overlapping region.

Touch panel and display apparatus including the same

A capacitive type touch sensor, includes a plurality of driving electrodes, a plurality of sensing electrodes disposed to overlap the driving electrodes, the sensing electrodes and the driving electrodes being spaced apart from each other, a driving unit configured to supply driving signals to the respective driving electrodes, and a sensing unit configured to detect sensing signals from the sensing electrodes, wherein the driving signals supplied by the driving unit include at least one of a first driving signal having a first frequency and a second driving signal having a second frequency different from the first frequency.

Capacitive type touch sensor

A stylus includes a pressure detector for detecting applied pressure, a first signal generator for generating a signal of a first frequency, a second signal generator for generating a signal of a second frequency, and a controller for adjusting at least one of the first and second signal generators to control an amplitude ratio of the signal of the first frequency to the signal of the second frequency according to the applied pressure detected by the pressure detector.

Stylus comprising signal generators to adjust amplitude ratio, pressure detecting system and driving method thereof

A touch sensing device includes: a capacitive-type touch sensor, a pressure sensor, a touch coordinate detecting unit, and a direction vector calculating unit. The capacitive-type touch sensor is configured to detect a first aspect of a touch input. The pressure sensor is configured to detect a second aspect of the touch input. The touch coordinate detecting unit is configured to, based on the first and second aspects, determine a touch coordinate associated with the capacitive-type touch sensor and a touch coordinate associated with the pressure sensor. The direction vector calculating unit is configured to determine a direction vector based on the respective touch coordinates.

Touch sensing device and driving method thereof

A display panel includes a plurality of unit pixels, where each of the unit pixels has a hexagonal-shape and includes: a first sub-pixel configured to emit a first color light, where the first sub-pixel has a rhombus-shape; a second sub-pixel configured to emit a second color light, where the second sub-pixel has the rhombus-shape; and a third sub-pixel configured to emit a third color light, where the third sub-pixel has the rhombus-shape, where first sub-pixels, second sub-pixels or third sub-pixels of neighboring unit pixels in a same row are arranged to adjoin each other.

Display panel and method of manufacturing the same

An organic light emitting display includes an image display unit having a plurality of pixels, and first and second pixel power lines that receive pixel-driving voltages from first and second power supplies, respectively. The second pixel power lines are interleaved with the first pixel power lines. Adjacent pixels of the same color from among the plurality of pixels provided in the image display unit are coupled to pixel power lines corresponding to different power supplies. This is to solve or mitigate the problem of non-uniform brightness of the entire image display unit due to voltage drops in the pixel power lines.

Organic light emitting display

An organic light emitting display is capable of reducing power consumption. The organic light emitting display includes a scan driver for sequentially supplying scan signals to scan lines, a data driver for supplying data signals to data lines in synchronization with the scan signals, pixels located at crossing regions of the scan lines and the data lines, a timing controller for determining a normal driving mode for displaying a normal image and a standby driving mode displaying less information than the normal image, and a power source for supplying a first power and a second power to the pixels, wherein a voltage difference between the first power and the second power in the normal driving mode is a first voltage, and a voltage difference between the first power and the second power is a second voltage different from the first voltage.

Organic light emitting display and method of driving the same

A method of sensing a touch is provided, the method including: generating, at a pressure detector, a first sensing signal by detecting a pressure of a touch input by a user; generating, at a position detector, a second sensing signal by detecting a position of the touch input by the user; and removing a noise of the second sensing signal based on the first sensing signal.

Method of sensing a touch and touch sensing system

A touch sensing apparatus includes a touch screen panel including first electrodes along a first direction and second electrodes along a second direction crossing the first direction to form capacitances with the first electrodes, a driving circuit configured to supply a driving signal to the first electrodes; and a sensing circuit configured to detect output sensing signals from the second electrodes and recognize a touch input based on the output sensing signals. The sensing circuit includes a switching unit configured to modulate the output sensing signals by providing codes as respective input sensing signals to the second electrodes, an amplifying unit configured to amplify the modulated sensing signals, an analog-digital conversion unit configured to convert the amplified sensing signals into digital sensing signals, and a controller configured to demodulate the digital sensing signals and detect a touch input and its position from the demodulated sensing signals.

Touch sensing apparatus and touch sensing method using the same

A touch screen system includes a touch screen panel including first lines, second lines crossing the first lines, a plurality of sensing cells formed at the crossing regions between the first lines and the second lines, a driving circuit for sequentially applying a driving signal to the first lines, a first sensing circuit for receiving capacitance change information sensed by the first lines, and generating a first sensing signal corresponding to the capacitance change information, a selecting unit for selectively coupling the first lines to the driving circuit or the first sensing circuit, a second sensing circuit for receiving the capacitance change information sensed by the sensing cells from the second lines and generating a second sensing signal corresponding to the capacitance change information, and a processing unit for receiving a sensing signal from the first sensing circuit and/or the second sensing circuit and determining a detected touch position.

Touch screen system and method of driving the same

A FPD integrated with a touch screen panel includes an upper substrate and a lower substrate facing each other, the upper substrate including a display region and first and second non-display regions surrounding the display region, a plurality of sensing patterns on the display region of the upper substrate, a plurality of sensing lines on the first non-display region of the upper substrate, a sealing material on the second non-display region of the upper substrate, the sealing material connecting the upper and lower substrates, and a flexible printed circuit (FPC) bonding pad unit on the second non-display region of the upper substrate, the FPC bonding pad unit including a plurality of bonding pads coupled to the plurality of sensing lines, the bonding pads including a transparent conductive material in regions overlapping the sealing material.

Flat panel display integrated with touch screen panel

A touch screen panel includes a plurality of driving electrodes, a plurality of sensing electrodes crossing the driving electrodes, a driver for supplying a driving signal to the driving electrodes in a touch recognizing mode, and a controller for receiving signals from the sensing electrodes. In a noise measuring mode, the controller is configured to cut off an electrical connection between one of the driving electrodes and the driver or between one of the sensing electrodes and the controller, maintain an electrical connection between another one of the sensing electrodes and the controller, and detect a noise signal from the other one of the sensing electrodes. The touch screen panel and a driving method of the touch screen panel can increase or maximize the reception sensitivity of outside noise.

Touch screen panel and driving method thereof

A touch screen display apparatus includes a panel including a light emitting device for displaying a display image and an optical sensor for generating a touch image object; a touch sensing unit on the panel for sensing a touch of a touch object; and a light emission controller for controlling the light emitting device to emit light when a touch of the touch object is sensed by the touch sensing unit.

Touch screen display apparatus for performing flash mode and method of operating the apparatus

A reference voltage setting apparatus including: a current generator having a first device to supply a first dark current and a second device to supply a second dark current; a first operational amplifying unit connected to the current generator; and a voltage setting unit connected to the first operational amplifying unit and setting a reference voltage having a compensated offset voltage of the first operational amplifying unit, and an illumination sensing device and a display device including the reference voltage setting apparatus.

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Yongin, South Korea

Soon-Sung Ahn