Canon Kabushiki Kaisha

Mitsuru Tada

Takeshi Ikeda

Kohei Inamura

Yasuo Suzuki

Eiichi Matsuzaki

Hiroshi Uchiike

Kousei Sugimoto

Masaharu Yamagishi

Toshiki Nakatani

Yoshiyuki Nagashima

Yasuhiro Matsuura

Masaru Tomabechi

Hirotaka Furuta

Azusa Oka

An apparatus that displays a video in accordance with an input signal, the apparatus includes a backlight including a plurality of light sources, a panel configured to display the video by modulating light from the backlight, a determination section configured to determine an amount of light of each of the plurality of light sources subframe by subframe, a controller configured to control the plurality of light sources in accordance with the determined amounts of light, and an acquisition section configured to acquire a statistic in a plurality of areas subframe by subframe in accordance with the input signal. The determination section is configured to determine the amount of light of each of the plurality of light sources in accordance with the statistic.

Display apparatus that controls amount of light from light source in accordance with video signal, and control method therefor

A control apparatus capable of setting a suitable correction parameter while reducing user's troublesome. The control apparatus including a database that holds correction parameters for correcting pickup images to reduce color difference between pickup images of image pickup apparatuses in association with combinations of standard image pickup apparatus information and image pickup conditions of image pickup apparatuses, a memory device that stores instructions, and a processor that executes the instructions to obtain first information showing a standard image pickup apparatus at a present time and second information showing a target image pickup apparatus that picks up an image as a correction target at the present time, obtain the image pickup conditions of the image pickup apparatuses, determine a setting correction parameter that is set to the target image pickup apparatus from the database based on the first information and the image pickup conditions apparatuses, and output the setting correction parameter.

Control apparatus applied to image pickup system, control method therefor, and storage medium storing control program therefor

The invention is a display device and method for correcting the amount of emitted light and brightness level from multiple light sources, which illuminate an object that is being imaged and displayed by a display module. The device and system include multiple temperature sensors that correspond to each of the multiple positions in the display module. The device and system also include a computer processor, which operates as a correction unit to individually correct the brightness for each of the multiple light sources based on the detected temperatures, detected by the temperature sensors, respectively, and the dispersion of the plurality of temperatures. The correction unit also performs (1) the temperature correction processing, to individually correct each of the multiple measured temperatures based on the dispersion; and (2) the brightness correction processing, to individually correct each of the brightness levels of the multiple light sources based on the corrected temperatures.

Display apparatus, control method of display apparatus, and non-transitory computer readable medium having temperature correction

A display apparatus includes: a backlight module; a first panel configured to transmit light irradiated from the backlight module; a second panel configured to display an image on a screen by transmitting the light transmitted through the first panel; and a control unit configured to control a transmittance of the first panel based on a second image generated by applying smoothing to at least a part of a first image. A strength of smoothing applied to a first region of the first image corresponding to a center of the screen is lower than a strength of smoothing applied to a second region of the first image, the second region being different from the first region.

Display apparatus and control method therefor

A display apparatus according to the present invention includes: a display unit configured to display an image based on input image data on a screen; and a control unit configured to execute control to reduce an upper limit value of a display brightness range of a second area, which is different from a first area, of the screen of the display unit below an upper limit value of a display brightness range of the first area of the screen of the display unit, so that a power consumption of the display unit does not exceed a predetermined power consumption.

A display apparatus includes: a light emission unit including a plurality of light sources that emit light; a display unit displays an image by modulating the light on the basis of frames; a determination unit determines a luminescence intensity of each of the light sources for each sub-frame; and a control unit controls lighting of each of the light sources for each sub-frame at the luminescence intensity, wherein the determination unit (1) determines a leakage light quantity, wherein the leakage light quantity is a transmission quantity of light from other light sources that is generated due to response delay in modulation by the display unit, for each region of the display unit corresponding to each of the light sources, and (2) determines the luminescence intensity in accordance with the difference of the leakage light quantity between the regions.

Display apparatus, control method of display apparatus, and non-transitory computer-readable medium

An information outputting method for a displaying apparatus comprises: an image acquiring step of acquiring image data; an identifying step of identifying a first image characteristic of a first display image which is displayed using a first display characteristic of a first displaying apparatus and is based on the image data, and of identifying a second image characteristic of a second display image which is displayed using a second display characteristic of a second displaying apparatus different from the first displaying apparatus and is based on the image data; and an information outputting step of outputting notification information based on a difference between the first image characteristic and the second image characteristic. Thus, it becomes possible to enable a user to grasp that a difference in image quality may occur among the plurality of display apparatuses respectively having different characteristics.

Information outputting method, electronic equipment, and displaying apparatus

In a display apparatus, a light-emitting unit emits light of a first color; a converting unit emits light of the first color, a second color, and a third color responding to irradiation of the light of the first color from the light-emitting unit; a detecting unit outputs a first detected value in accordance with brightness of the light of the first color, and a second detected value in accordance with brightness of the light of the second color; a correcting unit corrects components corresponding to the first color, the second color, and the third color of input image data, based on the first and second detected values, and a display unit displays an image on a screen by transmitting the light emitted from the converting unit, based on the corrected input image data.

Display apparatus and control method thereof

A light source apparatus includes: a light source unit; and a control unit configured to perform lighting control, wherein the light source unit emits first color light at a first timing, and emits second color light at a second timing which delays after the first timing by a predetermined period, in accordance with the lighting control, and the control unit performs a plurality of times of lighting control based on the predetermined period, so that at least a part of a period in which the light source unit emits the second color light in accordance with a first lighting control overlaps with at least a part of a period, in which the light source unit emits the first color light in accordance with a second lighting control, which is performed after the first lighting control.

Light source apparatus and control method thereof

A light-emitting apparatus includes: a light source unit; an optical sensor configured to acquire a light detection value corresponding to light emitted from the light source unit; a temperature sensor configured to acquire a temperature detection value corresponding to temperature of the optical sensor; and a correction unit configured to execute switching between first processing to acquire a current corrected detection value by correcting a current light detection value, based on a current temperature detection value, and second processing to acquire a current corrected detection value, based on: 1) at least one of a past light detection value and a past corrected detection value; 2) a past temperature detection value; and 3) the current temperature detection value.

Light-emitting apparatus and display apparatus

An image display apparatus according to the present invention includes a light-emitting unit, a display unit configured to display an image on a screen by modulating light from the light-emitting unit based on image data, a first acquiring unit configured to acquire brightness information on brightness of the image data, an image-processing unit configured to perform image processing on input image data, a second acquiring unit configured to acquire processing information on the image processing, and a control unit configured to control emission brightness of the light-emitting unit based on the brightness information and the processing information, so as to suppress a change in contrast of an image, which is displayed on the screen, caused by the image processing.

Image display apparatus and control method thereof

An image display apparatus according this invention includes: a light-emitting unit configured to emit light; a display panel configured to display an image by transmitting the light from the light-emitting unit at a transmittance based on an input image signal; and a control unit configured to set a plurality of lighting periods respectively having different lengths on a frame-by-frame basis and control lighting and extinction of the light-emitting unit in such a manner that the light-emitting unit is lit during the lighting periods and extinguished during a period other than the lighting periods, wherein the control unit makes the number of lighting periods within one frame larger when a brightness of the image is bright than when the brightness of the image is dark.

Image display apparatus and control method therefor

An image display apparatus according to the present invention includes: a light-emitting unit capable of separately controlling the emission brightness in each of a plurality of divided regions in a screen; a determining unit configured to determine a target brightness of a predetermined divided region, based on image data corresponding to the predetermined divided region; an estimating unit configured to estimate the brightness of the predetermined divided region when light is emitted by the light-emitting unit at emission brightness which is based on image data in each of the plurality of divided regions; and a control unit configured to control the emission brightness of two or more divided regions including the predetermined divided region based on the difference between the target brightness determined by the determining unit and the brightness estimated by the estimating unit.

A light source apparatus according to the present invention comprises: a brightness determination unit configured to determine emission brightness of each of light emission areas; a color determination unit configured to determine, for each of the light emission areas, an emission color of a target light, emission area, which is the each light emission area, based on the determined emission brightness of each of the light emission areas, in such a manner as to suppress a change in color of the target light emission area that is caused as a result of changes in emission brightnesses of light emission areas other than the target light emission area; and a control unit configured to cause each of the light emission areas to emit light of the determined emission color, at the determined emission brightness.

Growing community of inventors

Machida, Japan

Mitsuru Tada