Electro-optical device having a storage capacitor formed by a data line and a potential line
AssigneeSeiko Epson Corporation
InventorsToshiyuki Kasai, Takeshi Nomura
Life of this patent
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Abstract
An electro-optical device is provided with a plurality of data lines, a plurality of potential lines supplied with a predetermined potential, a driving transistor controlling a current level according to the voltage between the gate and the source, a first storage capacitor which holds the voltage between the gate and a source of the driving transistor, and a light-emitting element. One data line among the plurality of data lines and one potential line among the plurality of potential lines are arranged to be adjacent to each other, and a second storage capacitor holding the potential of the one data line is formed by the one data line and the one potential line.
Claims5
An electro-optical device comprising:
- a scanning line drive circuit configured to supply a first signal on a first line extending in a first direction;
- a data line extending in a second direction;
- a potential line;
- a first capacitor having a first end formed by at least a portion of the potential line;
- and
- a pixel circuit including:
- a driving transistor having a first gate, a first source, and a first drain, the driving transistor being configured to control a current level according to a voltage between the first gate and the first source;
- a writing transistor electrically connected between the first gate and the data line;
- a second capacitor having one end electrically connected to the first gate;
- a light-emitting element configured to emit light at a luminance according to the current level during a light-emitting period;
- and
- an initialization transistor configured to be on during an initialization period different from the light-emitting period, to control an electrical connection between the potential line and the light-emitting element, a gate of the initialization transistor being connected to the first line,
- wherein a second end of the first capacitor is formed by at least a portion of the data line.
Dependencies are inferred from the claim text.