Patent ID: 11948515
Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A display device comprising a first layer and a second layer that are stacked,
wherein the first layer comprises a potential supply circuit, a data driver circuit, and an addition circuit,
wherein the data driver circuit comprises a pass transistor logic circuit,
wherein the second layer comprises a display portion in which pixels are arranged in a matrix,
wherein the display portion comprises a region overlapping with the data driver circuit and the addition circuit,
wherein an output terminal of the pass transistor logic circuit is directly connected to an input terminal of the addition circuit,
wherein an output terminal of the addition circuit is directly connected to the pixel,
wherein the potential supply circuit is configured to supply a plurality of kinds of potentials to the pass transistor logic circuit,
wherein the pass transistor logic circuit is configured to output any one of the plurality of kinds of potentials as analog data on the basis of digital data input to the pass transistor logic circuit,
wherein the addition circuit is configured to generate third analog data by adding second analog data output in response to input of second digital data to the pass transistor logic circuit, to first analog data output in response to input of first digital data to the pass transistor logic circuit,
wherein the addition circuit comprises a first switch, a second switch, a third switch, and a capacitor,
wherein the output terminal of the pass transistor logic circuit is directly connected to one terminal of the first switch,
wherein the one terminal of the first switch is electrically connected to one terminal of the second switch,
wherein the other terminal of the first switch is directly connected to the pixel,
wherein one terminal of the capacitor is electrically connected to the pixel, and
wherein the other terminal of the capacitor is electrically connected to the other terminal of the second switch and one terminal of the third switch.