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Organic Light Emitting Display

A luminous display, organic technology, used in static indicators, instruments, etc., can solve problems such as the influence of data voltage

Active Publication Date: 2022-05-10
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, in the organic light emitting display device based on the internal compensation scheme, while applying the data voltage without using the multiplexer, the data voltage of the previous frame is stored in the data line in the floating state, and as a result, when writing In the current data, there is a problem that it is affected by the data voltage of the previous frame

Method used

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Examples

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Embodiment Construction

[0018] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0019] figure 1 is a view showing an organic light emitting display device according to an embodiment of the present invention.

[0020] refer to figure 1 , the organic light emitting display device according to the embodiment of the present invention includes a display panel 10 , a data driver 12 , a gate driver 13 and a timing controller 11 .

[0021] A plurality of data lines DL and a plurality of gate line units GL intersect each other in the display panel 10, and pixels P are arranged in a matrix form in each intersection area. Each pixel P is supplied with a high-potential driving voltage VDD and a low-potential driving voltage VSS from a power generation unit (not shown).

[0022] The timing controller 11 generates a data control signal DDC for controlling the operation timing of the data driver 12 and a data control signal for controlling the gat...

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Abstract

An organic light emitting display device using a multiplexer includes a display panel, a data driver and a multiplexer. The display panel includes first to fourth data lines and first to fourth pixels connected one to one to the first to fourth data lines, respectively. The data driver includes a first output buffer supplying the data voltage to the first and third data lines and a second output buffer supplying the data voltage to the second and fourth data lines. The multiplexer distributes the data voltage from the first output buffer to the first and third data lines in a time-division manner, and distributes the data voltage from the second output buffer to the second and fourth data lines in a time-division manner. The multiplexer connects a data line not connected to the first and second output buffers among the first to fourth data lines to an initialization voltage line supplying an initialization voltage.

Description

technical field [0001] The present disclosure relates to organic light emitting displays. Background technique [0002] Active matrix type organic light emitting display devices include self-luminous organic light emitting diodes (OLEDs), and have high response speed, high luminous efficiency, brightness, and wide viewing angle. [0003] An organic light emitting diode, which is a self-luminous device, 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 transport layer (ETL), and an electron injection layer (EIL). When a driving voltage is applied to the anode electrode and the cathode electrode, holes passing through the HTL and electrons passing through the ETL are transported to the EML to form excitons, and as a result, the EML generates visible light. [0004]...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3275
CPCG09G3/3275G09G2310/0262G09G2320/045G09G2300/0819G09G2300/0842G09G2310/0297G09G2310/0248G09G3/3291G09G3/3233G09G2230/00G09G2300/0452G09G2310/0291G09G2300/0443
Inventor 金奎珍李珠希金泰勋
Owner LG DISPLAY CO LTD
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