Lg Display Co., Ltd.

Seokyu Jang

Jinwoo Park

ChangBok Lee

EungKyu Kim

YongKyu Park

Seungbaek Park

Chang Bok Lee

Yong Kyu Park

Yongkyu Park

The present disclosure generally relates to a method of sensing characteristic value of circuit element and display device using it, which may shorten the threshold voltage sensing and compensation time of the driving transistor and the threshold voltage compensation time driving transistors by sensing the threshold voltage in a mobility sensing period of the driving transistor, calculate the threshold voltage using two or more sensing values of driving current for the driving transistor.

Method of sensing characteristic value of circuit element and display device using it

Disclosed is a display device which is capable of increasing a lifespan of a gate driver by maintaining a deterioration balance among a plurality of pull-down transistors, wherein the display device may include a display panel for displaying an image, a gate driver for supplying a gate signal to the display panel, and a timing controller for supplying a gate driver control signal to the gate driver, wherein the timing controller is set in such a way that it is turned-off until after a predetermined one among the plurality of pull-down transistors inside the gate driver is driven by the use of reset signal supplied from a reset integrated circuit.

Display device

A display device includes a switching circuit; a sub-pixel having a driving transistor and an organic light emitting diode (OLED) with an anode connected to the driving transistor; a driving voltage supply line to supply a driving voltage to the OLED through the driving transistor; a base voltage supply line connected to a cathode of the OLED through the switching circuit; a ground line to supply a ground voltage to the switching circuit; a first capacitor between the driving voltage supply line and the ground line; and a second capacitor between the base voltage supply line and the ground line. The switching circuit selectively supplies one of a first level voltage and a second level voltage as the base voltage, and the second level voltage is higher than the first level voltage at the ground voltage.

Display device and printed circuit board for supplying voltage to the display device

Disclosed is an organic light-emitting display device including: a display panel; a drive IC configured to supply a driving signal to the display panel; and a controller configured to operate in one of a first driving scheme, in which, when turned on, a sensing period of sensing characteristics of the display panel is executed, after which a display period of displaying an image on the display panel is executed, and a second driving scheme, in which, when turned on, the display period of displaying the image on the display panel is executed, the controller operating in the second driving scheme when turned on within a preset time after having been turned off.

Organic light-emitting display and method of driving same

Disclosed are an organic light emitting display panel, an organic light emitting display device, and a method of driving the organic light emitting display device. The organic light emitting display panel, the organic light emitting display device, and the method of driving the organic light emitting display device having a subpixel structure and a gate line connection structure in which two types of scan transistors within each subpixel can be individually turned on and off and image driving and various types of sensing driving can be performed while the aperture ratio increases through the individual on and off of the scan transistors.

Growing community of inventors

Goyang-si, South Korea

Seokyu Jang