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Organic Light Emitting Display Devices

A luminous display, organic technology, applied in static indicators, instruments, etc., can solve the problems of luminous brightness deviation, brightness deviation, brightness change, etc.

Active Publication Date: 2022-06-07
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the reference voltages applied to the pixels are different, the luminance changes although the same data voltage is supplied, resulting in luminance deviation between lines (or light emission luminance deviation)

Method used

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Experimental program
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Embodiment Construction

[0020] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Throughout the specification, the same reference numbers refer to the same elements. Also, in describing the present disclosure, if it is determined that the gist of the present specification would be unnecessarily obscure, a detailed description of the known related art will be omitted.

[0021] In the present invention, the switching element may be implemented as a transistor having an n-type or p-type metal oxide semiconductor field effect transistor (MOSFET) structure. A transistor is a three-electrode element, including a gate, source, and drain. The source is an electrode that supplies carriers to the transistor. In a transistor, carriers start flowing out of the source. The drain is an electrode through which carriers leave the transistor. That is, in a MOSFET, carriers flow from source to drain. In the case of an n-type MOSFET (NMOS), t...

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Abstract

An organic light emitting display device is provided, including: a first pixel having a first organic light emitting diode (OLED) and a first driving transistor; and a second pixel having a second OLED and a second driving transistor. The first pixel and the second pixel are connected to the first data line. The source electrode of the first driving transistor is connected to the first reference voltage line, and the source electrode of the second driving transistor is connected to the second reference voltage line.

Description

[0001] This application claims the benefit of Korean Patent Application No. 10-2018-0086084 filed on Jun. 24, 2018, the entire contents of which are incorporated herein by reference for all purposes as if It's exactly the same as stated. technical field [0002] The present invention relates to an organic light emitting display device that improves luminance deviation (or emission luminance deviation). Background technique [0003] The active matrix type organic light emitting display device includes a self-luminous organic light emitting diode (OLED), has a high response speed, has high luminous efficiency and brightness, and has a wide viewing angle. [0004] An OLED is a self-luminous element, and an OLED includes an anode electrode, a cathode electrode, and an organic compound layer (HIL, HTL, EML, ETL, and EIL) formed therebetween. The organic compound layer includes a hole injection layer (HIL), a hole transport layer (HTL), an emission layer (EML), an electron transp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3266G09G3/3225
CPCG09G3/3266G09G3/3225G09G3/3233G09G2300/0819G09G2300/0842G09G2320/0295G09G2320/0233G09G2300/0866G09G2310/0262G09G2230/00G09G2320/02G09G3/3258G09G2320/0252G09G2300/0426G09G2310/0251G09G2310/0202
Inventor 朴俊民
Owner LG DISPLAY CO LTD