US 2017/0365209 A1 · SEMICONDUCTOR DEVICE, DISPLAY DEVICE, AND ELECTRONIC DEVICE

Abstract

A semiconductor device with low power consumption is provided. The semiconductor device includes a controller, a register, and an image processing portion. The image processing portion is configured to process an image data using a parameter. The image processing portion receives an image data from a frame memory and receives a parameter from the register. The frame memory is configured to retain the image data while power supply is stopped. The register is configured to retain the parameter while the power supply is stopped. The controller is configured to control power supply to the register, power supply to the frame memory, and power supply to the image processing portion. The register includes a scan chain register. A transistor with which the scan chain register is configured includes an oxide semiconductor in a channel formation region.

Claims22

Dependent claims

A semiconductor device comprising:

a first controller;
a register;
a frame memory;
and
an image processing portion,
wherein the frame memory is configured to store image data,
wherein the image processing portion is configured to process the image data,
wherein the register is configured to store a parameter for performing processing in the image processing portion,
wherein the frame memory is configured to retain the image data while power supply to the frame memory is stopped,
wherein the register comprises a scan chain register, a first register, and a second register,
wherein the scan chain register is configured to retain the parameter while power supply to the register is stopped,
wherein a transistor in the scan chain register comprises an oxide semiconductor in a channel formation region, and
wherein the first controller is configured to control power supply to the register, power supply to the frame memory, and power supply to the image processing portion.

10 more elements

A semiconductor device comprising:

a controller;
a register;
a frame memory;
and
an image processing portion,
wherein the frame memory is configured to store image data,
wherein the image processing portion is configured to process the image data,
wherein the register is configured to store a parameter for performing processing in the image processing portion,
wherein the frame memory is configured to retain the image data while power supply to the frame memory is stopped,
wherein the register comprises a scan chain register, and a first register,
wherein the scan chain register is configured to retain the parameter while power supply to the register is stopped,
wherein a transistor in the scan chain register comprises an oxide semiconductor in a channel formation region, and
wherein the controller is configured to control power supply to the register, power supply to the frame memory, and power supply to the image processing portion.

10 more elements

Dependencies are inferred from the claim text.

Semiconductor device, display device, and electronic device

Life of this patent

Semiconductor device, display device, and electronic device

Life of this patent

Abstract

Claims22