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US 2008/0291193 A1Published application
Display device
AssigneesHitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
InventorsNaruhiko Kasai, Masato Ishii, Mitsuhide Miyamoto, Tohru Kohno, Hajime Akimoto
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Abstract
Detection voltages of self light emitting elements in a self-luminous display panel are detected by a detection circuit through a selection switch in a data line drive circuit via pixel detection switches and interactive signal lines. The detection operation is performed by making use of a power source supply time and a retracing period.
Claims10
A display device comprising:
- a display panel;
- self light emitting elements arranged on the display panel in a matrix array;
- a scanning line drive circuit and a data line drive circuit for driving the self light emitting elements;
- and
- signal lines for connecting the data line drive circuit and the display panel, wherein
- the data line drive circuit is configured to detect states of the self light emitting elements at the time of starting the display device or at the time of supplying a power source to the display panel via the signal lines and to detect the states of the self light emitting elements during a retracing period at the time of display operation.
3 more elements
A display device comprising:
- a display panel;
- self light emitting elements arranged on a display panel in a matrix array;
- a scanning line drive circuit and a data line drive circuit for driving the self light emitting elements, signal lines for connecting the data line drive circuit and the display panel,
- a detection circuit for detecting degradation characteristics or light emitting characteristics of the self light emitting elements, and
- a data control circuit which corrects the light emission of the self light emitting elements corresponding to the degradation characteristics or the light emitting characteristics of the self light emitting elements, wherein
- the detection circuit detects the degradation characteristics or the light emitting characteristics of some self light emitting elements formed on the display panel during a predetermined period from the starting of the display device or at the time of supplying a power source, and detects the degradation characteristics or the light emitting characteristics of the self light emitting elements other than some self light emitting elements formed on the display panel, the degradation characteristics or the light emitting characteristics of the self light emitting elements including some self light emitting elements and other self light emitting elements formed on the display panel, or the degradation characteristics or the light emitting characteristics of all self light emitting elements formed on the display panel during a retracting period.
3 more elements
Dependencies are inferred from the claim text.