Organic light-emitting display device having degradation compensation
AssigneeTLI Inc.
InventorsJae Gan Ko, Ju Hyun Park
Life of this patent
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Abstract
An organic light-emitting display (OLED) device includes an image display member, an aging display member, a degradation compensation control member for compensating for degradation of original image data of display pixels of the image display member. Aging pixels of the aging display member are degraded by reflecting image driving data of the display pixels, and the degradation of the original image data is compensated depending on degradation confirmation values of standard cumulative stress indexes corresponding to cumulative stress of the display pixels. The degree of degradation of the pixels may be accurately reflected while having a high aperture ratio, so that effective degradation compensation may be performed.
Claims12
An organic light-emitting display (OLED) device comprising:
- an image display member including display pixels which are driven to display images for each frame in an image display operation and each of which is emission-accessed according to image driving data;
- an aging display member including aging pixels each of which is driven to read a degradation sensed value reflecting a degree of degradation of each aging pixel in a degradation sensing operation;
- and
- a degradation compensation control member that stores degradation correlation information representing a degradation confirmation value for each of standard cumulative stress indexes and being updated depending on the degradation sensed value, the degradation compensation control member compensating for degradation of original image data of each display pixel according to the degradation correlation information to provide the image driving data of each display pixel,
- wherein the aging pixels are driven to be degraded by reflecting the image driving data of the display pixels in each frame, and
- the degradation of the original image data is compensated depending on the degradation confirmation values of the standard cumulative stress indexes corresponding to image cumulative stress indexes which represent cumulative stress of the display pixels.
Dependencies are inferred from the claim text.