Samsung Mobile Display Co., Ltd.

Samsung Display Co., Ltd.

Kyung-hoon Chung

Seuk-Hwan Park

Yoon-Sang Kwon

A pixel includes an organic light emitting diode, a first transistor having a source coupled to a first power source, a control gate coupled to a first node, and a drain coupled to a second node, wherein the first transistor includes a floating gate and an insulating layer between the floating gate and the control gate, a second transistor having a source coupled to a data line, a drain coupled to the first node, and a gate coupled to a scan line, a third transistor having a source coupled to the second node, a drain coupled to the organic light emitting diode, and a gate coupled to one of a light emitting control line and the scan line, and a capacitor coupled between the first power source and the first node.

Method of manufacturing an organic light emitting display

An organic light emitting display device including: a plurality of pixels, each of the pixels including an organic light emitting diode (OLED) and a pixel circuit for driving the OLED, the pixel circuit including: a first transistor for transferring a data signal supplied from a data line to a current scan line; a second transistor for controlling an amount of current corresponding to the data signal that flows from a first pixel power supply to the OLED; a third transistor for diode-connecting the second diode according to the current scan signal; a storage capacitor for maintaining a gate voltage of the second transistor in accordance with the data signal; and a fourth transistor for initializing a first node according to a previous scan signal supplied before the current scan signal is supplied, the fourth transistor in a pixel region of a previous row pixel.

Pixel and organic light emitting display device including the same

An evaporation apparatus is capable of preventing a sag phenomenon in a substrate. The evaporation apparatus includes a substrate supporting unit. The substrate supporting unit includes a substrate supporter for supporting side walls of a substrate in a chamber toward the same direction as an intake direction of the substrate entering the chamber; and a substrate-aiding supporter for supporting other side walls of the substrate that are not supported by the substrate supporter.

Growing community of inventors

Suwon-si, South Korea

Kyung-hoon Chung