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US 2026/0164795 A1Published application
Display Apparatus and Electronic Device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsShunpei YAMAZAKI, Koji KUSUNOKI, Shingo EGUCHI
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Abstract
A highly reliable display apparatus is provided. In an EL display apparatus including a specific pixel having a function of adding data, a storage node is provided in the pixel, and first data can be held in the storage node. In the pixel, second data is added to the first data through capacitive coupling, whereby third data can be generated. A light-emitting device operates in accordance with the third data. In the pixel, a light-emitting device that requires a high voltage for light emission or a light-emitting device to which application of a high voltage is preferred is provided.
Claims2
A display device comprising:
- a display portion;
- and
- a scan line driver circuit,
- wherein the display portion comprises:
- a wiring extending in a row direction and a column direction, the wiring always being in a conduction state with a cathode of a light-emitting device;
- and
- a plurality of pixels positioned in a first region surrounded by the wiring,
- wherein the plurality of the pixels comprises:
- a first transistor;
- and
- the light-emitting device having a tandem structure,
- wherein the first region is positioned in a matrix in the display portion, and
- wherein the display device comprises:
- a first conductive film configured to be one of a source electrode and a drain electrode of the first transistor;
- a second conductive film configured to be the other of the source electrode and the drain electrode of the first transistor;
- a first insulating film comprising a region positioned over the first conductive film and a region positioned over the second conductive film;
- a third conductive film comprising a region in contact with a top surface of the first insulating film, the third conductive film always being in a conduction state with the first conductive film and being configured to be an anode of the light-emitting device;
- a fourth conductive film comprising a region in contact with the top surface of the first insulating film, the fourth conductive film being part of the wiring;
- a partition wall comprising a region over the first insulating film, a region positioned over the third conductive film, and a region positioned over the fourth conductive film;
- a fifth conductive film comprising a region positioned over the third conductive film, a region positioned over the fourth conductive film, and a region positioned over the partition wall, the fifth conductive film configured to be the cathode of the light-emitting device,
- wherein the scan line driver circuit comprises a second transistor that does not overlap with the partition wall,
- wherein the fifth conductive film is always in a conduction state with the fourth conductive film through an opening portion in the partition wall, and
- wherein the opening portion is positioned in the display portion.
20 more elements
A display device comprising:
- a display portion;
- and
- a scan line driver circuit,
- wherein the display portion comprises:
- a wiring extending in a row direction and a column direction, the wiring always being in a conduction state with a cathode of a light-emitting device;
- and
- a plurality of pixels positioned in a first region surrounded by the wiring,
- wherein the plurality of the pixels comprises:
- a first transistor;
- and
- the light-emitting device having a tandem structure,
- wherein the first region is positioned in a matrix in the display portion, and
- wherein the display device comprises:
- a first conductive film configured to be one of a source electrode and a drain electrode of the first transistor;
- a second conductive film configured to be the other of the source electrode and the drain electrode of the first transistor;
- a first insulating film comprising a region positioned over the first conductive film and a region positioned over the second conductive film;
- a third conductive film comprising a region in contact with a top surface of the first insulating film, the third conductive film always being in a conduction state with the first conductive film and being configured to be an anode of the light-emitting device;
- a fourth conductive film comprising a region in contact with the first insulating film, the fourth conductive film being part of the wiring;
- a partition wall comprising a region in contact with a top surface of the first insulating film, a region positioned over the third conductive film, and a region positioned over the fourth conductive film;
- a fifth conductive film comprising a region positioned over the third conductive film, a region positioned over the fourth conductive film, and a region positioned over the partition wall, the fifth conductive film configured to be the cathode of the light-emitting device,
- wherein the scan line driver circuit comprises a second transistor that does not overlap with the partition wall and the fourth conductive film,
- wherein the fifth conductive film is always in a conduction state with the fourth conductive film through an opening portion in the partition wall, and
- wherein the opening portion is positioned in the display portion.
20 more elements
Dependencies are inferred from the claim text.