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US 2003/0112205 A1Published application
Display apparatus with function for initializing luminance data of optical element
AssigneeSanyo Electric Co., Ltd.
InventorKouichi Yamada
Life of this patent
Estimating the term…
Abstract
Prior to writing new luminance data in the n-th row pixel, as the (n−1)th scanning line turns high to write the luminance data in the (n−1)th row pixel, the bypass transistor and the initialization transistor of the n-th row pixel turn on. Hence, the luminance data having been set in the driving transistor is initialized, and the organic light emitting diode goes out.
Claims17
A display apparatus, including:
- an optical element;
- a drive element, placed on a path of current flowing to said optical element, which causes desired current to flow to said optical element by controlling the current according to luminance data;
- a shutoff circuit which shuts off the current flowing to said optical element by controlling said drive element independently of the luminance data;
- and
- a discharging circuit which discharges electric charge accumulated across said optical element.
2 more elements
A display apparatus, including:
- an optical element;
- a driving transistor, placed on a path of current flowing to said optical element, which causes a desired current to flow to said optical element by controlling the current according to luminance data;
- an initialization transistor which shuts off current flowing to said optical element by controlling a control voltage of said driving transistor independently of the luminance data;
- and
- a bypass transistor which discharges electric charge accumulated across said optical element,
- wherein said initialization transistor and said bypass transistor are activated by a scanning signal for an optical element to which luminance data is set one scanning period previously.
3 more elements
A display apparatus, including:
- an optical element;
- a drive element which drives said optical element in accordance with set luminance data;
- an initialization circuit which sets, in said drive element, dummy data having no relation to the luminance data;
- and
- a discharging circuit which discharges electric charge accumulated across said optical element.
2 more elements
Dependencies are inferred from the claim text.