ORGANIC LIGHT EMITTING DIODE DISPLAY
First Claim
1. An organic light emitting diode display, in which one frame period is divided into a data enable period and a vertical blank period, comprising:
- a data driving circuit configured to convert pixel data into a data voltage and supply the data voltage to data lines of a display panel during the data enable period, and to sense changes in driving characteristics of the display panel within an extended vertical blank period;
a scan driving circuit configured to supply a scan pulse synchronized with the data voltage to scan lines of the display panel during the data enable period, and to output a scan pulse for sensing the changes in the driving characteristics within the extended vertical blank period; and
a timing controller configured to compensate for data of an input image using a compensation value determined based on the changes in the driving characteristics, transmit the compensated data to the data driving circuit, and control operation timing of the data driving circuit and operation timing of the scan driving circuit,wherein the timing controller shortens the data enable period defined by an input timing signal and controls the extended vertical blank period to be longer than the vertical blank period defined by the input timing signal.
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Accused Products
Abstract
An organic light emitting diode display includes a data driving circuit which converts pixel data into a data voltage and supplies the data voltage to data lines during a data enable period, and senses changes in driving characteristics of a display panel within an extended vertical blank period, a scan driving circuit which supplies a scan pulse synchronized with the data voltage to scan lines during the data enable period, and outputs a scan pulse within the extended vertical blank period, and a timing controller which compensates for data of an input image using a compensation value determined based on the changes in the driving characteristics, transmits the compensated data to the data driving circuit, and controls operation timing of the data driving circuit and operation timing of the scan driving circuit.
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Citations
6 Claims
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1. An organic light emitting diode display, in which one frame period is divided into a data enable period and a vertical blank period, comprising:
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a data driving circuit configured to convert pixel data into a data voltage and supply the data voltage to data lines of a display panel during the data enable period, and to sense changes in driving characteristics of the display panel within an extended vertical blank period; a scan driving circuit configured to supply a scan pulse synchronized with the data voltage to scan lines of the display panel during the data enable period, and to output a scan pulse for sensing the changes in the driving characteristics within the extended vertical blank period; and a timing controller configured to compensate for data of an input image using a compensation value determined based on the changes in the driving characteristics, transmit the compensated data to the data driving circuit, and control operation timing of the data driving circuit and operation timing of the scan driving circuit, wherein the timing controller shortens the data enable period defined by an input timing signal and controls the extended vertical blank period to be longer than the vertical blank period defined by the input timing signal. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification