Display device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorShunpei Yamazaki
Life of this patent
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Abstract
A display device capable of operating at high speed and with low power consumption is provided. A miniaturized display device occupying a small area is also provided. The display device includes a support; a display portion which includes a pixel; a light-blocking unit which is in the support and includes a light-blocking layer having a first opening overlapping with at least part of the pixel, and a movable light-blocking layer blocking light passing through the first opening; a transistor which is electrically connected to the light-blocking unit and includes an oxide semiconductor film; and a capacitor electrically connected to the transistor.
Claims23
A display device comprising:
- a display element between a pair of electrodes;
- and
- a MEMS shutter capable of moving to block light,
- wherein the MEMS shutter is electrically connected to a switching element,
- wherein the switching element comprises at least a transistor and a capacitor,
- wherein the transistor comprises an oxide semiconductor film, and
- wherein the capacitor comprises a conductive film, an insulating film, and one of the pair of electrodes.
A display device comprising:
- a display element between a pair of electrodes;
- and
- a MEMS shutter capable of moving to block light,
- wherein the MEMS shutter is electrically connected to a first switching element and a second switching element,
- wherein the first switching element comprises at least a first transistor and a first capacitor,
- wherein the second switching element comprises at least a second transistor and a second capacitor,
- wherein the first transistor comprises a first oxide semiconductor film,
- wherein the second transistor comprises a second oxide semiconductor film,
- wherein the first capacitor comprises a first conductive film, a first insulating film, and one of the pair of electrodes, and
- wherein the second capacitor comprises a second conductive film, a second insulating film, and the one of the pair of electrodes.
A semiconductor device comprising:
- a first transistor comprising a first semiconductor film;
- a second transistor comprising a second semiconductor film;
- a capacitor;
- and
- a MEMS shutter,
- wherein the first transistor is electrically connected to the MEMS shutter,
- wherein a gate of the first transistor is electrically connected to one of source and drain of the second transistor, and
- wherein the capacitor is electrically connected to the other of source and drain of the second transistor.
Dependencies are inferred from the claim text.