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US 11,769,442 B2Granted
Light-emitting display device preventing occurrence of compensation deviation and driving method thereof
OwnerSeung Ju Joinventor
Life of this patent
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Abstract
Provided is a light-emitting display apparatus including a display panel configured to display an image, a driving circuit configured to drive the display panel, a timing controller configured to control the driving circuit, and a compensation circuit configured to correct an accumulation period difference of accumulated data to compensate deterioration of an element included in the display panel based on fluctuation of a driving frequency for driving the display panel.
Claims10
A light-emitting display apparatus comprising:
- a display panel configured to display an image;
- a driving circuit configured to drive the display panel;
- a timing controller configured to control the driving circuit;
- and
- a compensation circuit configured to correct an accumulation period difference of accumulated data to compensate deterioration of an element included in the display panel based on fluctuation of a driving frequency for driving the display panel,
- wherein the timing controller is configured to calculate a correction time for correcting an accumulation period difference due to a difference of a frequency lower or higher than a reference frequency, and
- wherein the timing controller is configured to correct the accumulation period difference of accumulated data that has accumulated based on the correction time in order to compensate for deterioration of an element included in the display panel.
4 more elements
A light-emitting display apparatus comprising:
- a display panel configured to display an image;
- a driving circuit configured to drive the display panel;
- a timing controller configured to control the driving circuit;
- and
- a compensation circuit configured to correct an accumulation period difference of accumulated data to compensate deterioration of an element included in the display panel based on fluctuation of a driving frequency for driving the display panel,
- wherein the compensation circuit inspects a driving frequency using a method of counting a vertical synchronization signal, and calculates a correction time for correcting an accumulation period difference of accumulated data based on fluctuation of the driving frequency.
3 more elements
A method of driving a light-emitting display apparatus, the method comprising:
- inspecting a driving frequency based on a synchronization signal;
- setting, as a reference frequency, a lowest frequency among variable driving frequencies when a display panel is driven;
- calculating a correction time for correcting an accumulation period difference due to a difference of a frequency lower or higher than the reference frequency;
- correcting the accumulation period difference of accumulated data, accumulated based on the correction time, to compensate deterioration of an element included in the display panel based on fluctuation of the driving frequency for driving the display panel;
- and
- compensating for a data signal to be supplied to the display panel based on the corrected accumulated data.
3 more elements
Dependencies are inferred from the claim text.