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Organic light emitting display device and driving method thereof

A light-emitting display device, organic technology, applied in static indicators, instruments, etc., can solve problems such as uneven image quality, poor continuity, and change in driving characteristics of driving transistor Tdr

Active Publication Date: 2015-07-01
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] However, in the organic light-emitting display device of the prior art, due to the unevenness of the manufacturing process of the thin film transistor (TFT) and the deterioration of its continuity, the driving characteristics of the driving transistor Tdr will change.
Due to this, the image quality is uneven

Method used

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  • Organic light emitting display device and driving method thereof
  • Organic light emitting display device and driving method thereof
  • Organic light emitting display device and driving method thereof

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Embodiment Construction

[0040] Reference will now be made in detail to the exemplary embodiments of the invention, examples of which are illustrated in the accompanying drawings. The same or similar reference numerals are used throughout the drawings to denote the same or similar parts.

[0041] The terms described in the specification should be understood as follows.

[0042]As used herein, the singular forms "a" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. The terms "first" and "second" are used to distinguish one element from another element, and the elements should not be limited by these terms. It will be further understood that when used herein, the terms "comprising", "comprising", "containing", "having" and / or "comprising" indicate the presence of said features, integers, steps, operations, elements and / or parts , but does not exclude the existence or addition of one or more other features, integers, steps, operations, elements, ...

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Abstract

Disclosed is an organic light emitting display device including a pixel connected to a data line, a gate line group, and a reference line. The pixel includes an organic light emitting diode (OLED), a driving transistor configured to control a current flowing in the OLED, a first switching transistor configured to selectively supply a data voltage to a first node, a second switching transistor configured to selectively supply an initial voltage to a second node, a third switching transistor configured to selectively connect a third node to the reference line, a fourth switching transistor configured to selectively connect the first node to the third node, a first capacitor connected between the first and second nodes to store a threshold voltage of the driving transistor, and a second capacitor connected between the first and third nodes to store the data voltage supplied through the first switching transistor.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of Korean Patent Application No. 10-2013-0167896 filed December 30, 2013, which is hereby incorporated by reference as if fully set forth herein. technical field [0003] Embodiments of the present invention relate to an organic light emitting display device and a driving method thereof. Background technique [0004] Currently, with the advancement of multimedia, the importance of flat panel display devices (FPDs) is increasing. Therefore, various FPD devices such as liquid crystal display (LCD) devices, plasma display panel (PDP) devices, and organic light emitting display devices are actually in use. The organic light emitting display device displays images by emitting light from an organic light emitting diode according to recombination of electrons and positively charged holes. The organic light emitting display device has a fast response time and an unlimited viewing angle due...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32
CPCG09G3/3258G09G2320/043G09G2320/0233G09G2300/0819G09G2300/0876G09G3/3291G09G2310/027G09G2310/0208G09G3/3233G09G2300/0417G09G2300/0852G09G2310/0262G09G2320/0285G09G2320/0295G09G3/32
Inventor 张旼揆沈锺植高杉亲知
Owner LG DISPLAY CO LTD
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