Seiko Epson Corporation

Tatsuhiro Hasu

Masaki Ishikawa

Yasutoshi Akiba

Masanobu Kobayashi

Takekuni Yamamoto

A display system includes a circuit device and a first light source driver to an n-th light source driver. The circuit device performs local dimming control on a display device including a display panel and a backlight. The first light source driver to the n-th light source driver drive the backlight based on dimming information of the local dimming control. An i-th light source driver PWM-drives an i-th light source element group among the first light source element group to the n-th light source element group provided in a target area based on dimming information for the target area. The target area is an area to be driven by the first light source driver to the n-th light source driver among a plurality of areas of the backlight in the local dimming control.

Display system and circuit device having local dimming control of backlight

An image processing circuit includes a front stage signal processing circuit that performs processing of input data and outputs the data and a rear stage signal processing circuit that performs processing which is to be performed on the data obtained after processing of the input data performed by the front stage signal processing circuit and outputs the data. The image processing circuit is configured to be switchable to one state of a first state that performs processing of the input data using the front stage signal processing circuit, subsequently performs processing of the data using the rear stage signal processing circuit, and outputs the data, a second state that performs processing of the input data using the front stage signal processing circuit and outputs the data, and a third state that performs processing of the input data using the rear stage signal processing circuit and outputs the data.

Signal processing circuit, circuit substrate, and projector

A display apparatus includes a display section that displays a displayed image on a display surface based on an original image, an imaging section that captures the displayed image displayed on the display surface by the display section, a generation section that generates a difference image representing a difference between a captured image produced by the imaging section that captures the displayed image and the original image, and an instruction section that instructs the display apparatus to take a predetermined action based on a temporal change in the difference image generated by the generation section.

Display apparatus, display system, and control method

An image processing device includes a compression circuit adapted to perform compression of image data after sorting the pixels in an arrangement included in a plurality of lines in image data into a plurality of lines corresponding respectively to color components, a memory adapted to store the image data thus compressed, and an expansion circuit adapted to expand the image data thus compressed to restore the arrangement of the pixels.

Growing community of inventors

Matsumoto, Japan

Tatsuhiro Hasu