Samsung Display Co., Ltd.

Ung Choi

Chul Kyu Kim

Won-ki Hong

Kangwon Lee

Seungho Nam

Jihong Park

Incheol Kim

Kiseok Cha

Hojin Byun

Sunghwan Kim

Sangrock Yoon

Onsik Choi

Young-Mook Choi

Hyun Seok Hong

HyunSeok Ko

Sang-Rock Yoon

Jung Mi Yun

Jeong Mo Nam

Jinhyun Ko

Jangseop Kim

Jung-Mi Yun

A display device including a display panel having a first area, a second area, and a plurality of pixels to provide an image during a frame period, and a touch panel including a first touch part including first and second touch coils insulated from each other, and a second touch part including first touch electrodes and second touch electrodes insulated each other, in which corresponding second scan signals are applied to the first touch electrodes disposed in the first area when corresponding first scan signals are applied to the first touch coils disposed in the second area during a first period of the frame period, the second touch coils are configured to provide first sensing signals according to a resonant frequency of an input device, and the second touch electrodes are configured to provide second sensing signals according to a variation in a capacitance.

Display device and method of driving the same in two modes

A display device includes a display panel and a touch panel. The touch panel calculates coordinate information of an input position by an electrostatic capacitive method in a first mode and calculates the coordinate information of the input position by an electromagnetic induction method in a second mode. The touch panel includes scan line groups and source line groups, which are operated as touch electrodes or touch coils on the basis of the operating mode thereof. In addition, the touch panel includes touch electrodes and touch coils, which are individually operated on the basis of the operating mode thereof.

A display device includes: a display panel which displays an image with light; a touch sensing unit which senses a touch thereto, provided on the display panel; a control board which provides a control signal to control the display panel and the touch sensing unit, provided outside the display panel and the touch sensing unit, the control board including a first conductive layer and a second conductive layer which is on the first conductive layer; a first coupling member which electrically couples the display panel with the first conductive layer of the control board; and a second coupling member which electrically couples the touch sensing unit with the second conductive layer of the control board.

Display device

A display device including a display panel which displays an image, a driving circuit substrate disposed on a rear surface of the display panel and configured to control the display panel to display the image; a protective cover coupled to the display panel while interposing the driving circuit substrate there between to protect the driving circuit substrate; and an antenna pattern attached to the protective cover and configured to transmit and receive a wireless signal.

Display device having antenna

Provided is a timing controller configured to operate a display device. The timing controller includes a receiving unit receiving a still image signal; a transmitting unit outputting an output data used to display images; a clock frequency spreader generating a spread clock signal having a frequency value adjusted between first and second frequency values by modulating a reference clock signal; a memory system storing a first image data which corresponds to a first frame of an image, and outputting the first image data in response to the spread clock signal; and a still image managing unit communicating with the memory system in order to output the first image data as the output data. According to the timing controller, electro-magnetic interference may be reduced and operation errors of the display device may be prevented.

Timing controller and display device including the same

A noise test apparatus includes a ground plate, a base plate including a ground plate, the ground plate being configured to support a display panel. A first antenna configured to receive electromagnetic waves irradiated by the display panel and disposed on the base plate adjacent to a first side of the ground plate. A second antenna configured to receive the electromagnetic waves irradiated by the display panel and disposed on the base plate adjacent to a second side of the ground plate, the second side extending substantially perpendicular to the first side.

Noise test apparatus and method for testing a display panel using the same

A display device includes a display panel which displays an image, a driving circuit substrate disposed on a rear surface of the display panel and controlling the display panel to display the image, and a chip antenna connected to an end portion of the driving circuit substrate in a longitudinal direction of the driving circuit substrate.

Growing community of inventors

Asan-si, South Korea

Ung Choi