Samsung Display Co., Ltd.

Samsung Electronics Co., Ltd.

Lg Electronics Inc.

Credipass Co., Ltd.

Ji-Tae Kim

Sung-Un Park

Seung-Hwan Oh

Kyung-Ho Hwang

Yeon-Shil Jung

Hyun-Uk Oh

In-Woo Jeong

Soon-jin Choi

Hyung-Min Shin

Ki-Sik Park

Tae-Wook Kim

Dong-Hun Jung

Dong-Seog Jeong

A display apparatus includes a display panel and a panel driver. The display panel includes a first pixel including a first organic light emitting diode (OLED). The panel driver applies a first voltage to an anode electrode of the first OLED while a first frame image is displayed on the display panel if a grayscale of the first frame image is lower than a first reference grayscale.

Display apparatus and method of operating the same

An organic light emitting display device includes a display panel, a scan driver, a data driver, a power supply which provides a first voltage to a first power terminal of the pixel and selectively provides the first voltage or a second voltage to a second power terminal of the pixel, and a controller which selects one of a normal driving mode and a power saving mode as a panel driving mode where the power supply provides the second voltage to the second power terminal of the pixel in a first period of one frame period and provides the first voltage to the second power terminal of the pixel in a second period of one frame period when the panel driving mode is the power saving mode.

Organic light emitting display device

A liquid crystal display device having an improved electrostatic discharge structure includes: a liquid crystal panel on which an image is formed; a light emitting diode (LED) unit for irradiating a backlight to the liquid crystal panel; a chassis in which the liquid crystal panel and the LED unit are installed; a LED circuit board including a LED chip that is installed to electrically contact the chassis and to control the LED unit; and a main circuit board connected to the liquid crystal panel and the LED circuit board. A grounding line is connected to the main circuit board and is formed on the LED circuit board. Accordingly, the static electricity that has flowed from the outside through the chassismay be immediately discharged through the grounding line, and electronic components in the liquid crystal display device may be protected from the static electricity.

Liquid crystal display device

A mobile communication terminal having a first body and a second body rotatably coupled by a hinge assembly, and a mode selector that sets an operation mode of the mobile communication terminal based on an angle between the first body and the second body. The mode selector includes a rotation part that enables the detection of an angle between the first body and the second body, and a setting part, movably mounted on the rotation part, which sets an operation mode of the mobile communication terminal corresponding to the detected angle when the setting part is moved into contact with a holding part.

Foldable mobile communication terminal having a mode selector based on folding angle thereof

A device and method for adaptively controlling a turn-on time of a transceiver so that power consumption is reduced. The device includes a transceiver for receiving a beacon frame broadcasted by a coordinator which coordinates devices, and a controller for determining whether a period of the beacon frame is changed by checking period information in the received beacon frame. The device further includes a beacon frame arrival-time estimation part for estimating an arrival-time of a next beacon frame to be received, based on the changed period information of the beacon frame, a time-error estimation part for estimating a time-errors of the coordinator and the device based on the changed period information of the beacon frame, and a turn-on time estimation part for estimating a turn-on time of a transceiver based on the estimated beacon frame arrival-time and the estimated time-errors.

Device and method for adaptively controlling turn-on time of transceiver

A passive transponder identification system and credit card type transponder are disclosed, particularly, the transponder identification system to utilize a transmitting manner of two different RF signals is provided. The present invention directly relates to a passive transponder without any kind of power source. Therefore, the present invention has advantages of having a constant gain value by developing a high-gain dual polarizing antenna for a small credit card type passive transponder to identify at long distance, independently to any direction of the transponder; improving gain values than conventional transponder tag antenna by 6-9 dB to ensure a sub-permanent life time by providing the desired identification performance by a small credit card type passive transponder without power supply; and being applicable to any systems to identify and distinguish high-speed moving objects.

Growing community of inventors

Seoul, South Korea

Ji-Tae Kim