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Organic light emitting diode display device

A technology of light-emitting diodes and display devices, which can be used in static indicators, instruments, etc., and can solve problems such as reducing the ability to reduce cumulative stress dispersion, improving image retention, and limiting the maximum offset

Active Publication Date: 2020-07-03
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] However, the track driving method of the related art has limitations in the maximum offset of image frames in the horizontal and vertical directions
In addition, since the image frame is shifted with a predetermined shift track shape, the shift path is limited, thereby reducing the cumulative stress dispersion capability and the image sticking improvement capability

Method used

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  • Organic light emitting diode display device
  • Organic light emitting diode display device
  • Organic light emitting diode display device

Examples

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Embodiment approach

[0034] figure 1 is a block diagram illustrating an OLED display device according to an embodiment of the present invention; figure 2 is shown figure 1 Equivalent circuit diagram of the configuration of the sub-pixels shown; image 3 is a diagram schematically illustrating a pixel offset determination method according to an embodiment of the present invention; Figures 4A to 4D is a diagram showing a shape comparison between an image offset track according to an embodiment of the present invention and an offset track of a comparative example.

[0035] refer to figure 1 , the OLED display device includes a panel 100 , a gate driver 200 , a data driver 300 , a timing controller 400 and a gamma voltage generator 500 .

[0036] The panel 100 displays images through a pixel array. Panel 100 may use any of a variety of pixel structures, such as figure 2 shown. The basic pixels of the pixel array may include sub-pixels of two, three, or four colors of white (W), red (R), gree...

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Abstract

Disclosed herein is an organic light emitting diode (OLED) display device capable of improving image sticking improvement capability by expanding an image shift orbit or changing the shape of an imageshift orbit using a maximum shift range. An image processor of an OLED display device independently determines a pixel shift amount in a horizontal direction and a pixel shift amount in a vertical direction in consideration of a maximum shift range in each of the horizontal and vertical directions, simultaneously applies the determined pixel shift amounts in the horizontal and vertical directionsto shift a source image, and outputs the shifted image.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims priority to Korean Patent Application No. 10-2018-0169514 filed on December 26, 2018, which is incorporated herein by reference in its entirety. technical field [0003] The present invention relates to an organic light emitting diode display device capable of improving image sticking improvement capability by extending an image shift track with a maximum shift range or changing the shape of the image shift track. Background technique [0004] As display devices that display images using digital image data, liquid crystal displays (LCDs) using liquid crystals and OLED display devices using organic light emitting diodes (hereinafter referred to as "OLEDs") are mainly employed. [0005] The OLED display device has high brightness, low driving voltage, ultra-thin film, and free shape due to the use of a self-luminous element that emits light from an organic light-emitting layer by recombination of e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3208
CPCG09G3/3208G09G2320/0257G09G3/3275G09G3/3233G09G3/3225G09G2300/0819G09G2300/0842G09G2320/046G09G2320/103G09G3/007G09G2310/027G09G2310/08G09G3/3266
Inventor 金潣哲金载弘李喜恩
Owner LG DISPLAY CO LTD
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