Sharp Kabushiki Kaisha Corporation

Ryoji Sakurai

Kazuyoshi Yoshiyama

Hideki Suzuki

Tomoo Nishigaki

Yasushi Tetsuka

Shigeki Taniguchi

Naoaki Shibamoto

Hiroyuki Furukawa

Andrew Kay

Toshiyuki Fujine

Paul Philip Boca

A technique of displaying an image at adequate luminance with a configuration simpler than a configuration in related art is disclosed. A display device () includes a display unit () that is configured such that luminance of an image to be displayed is adjustable on a per area basis of multiple areas, an image processing unit () that generates an output image by modifying a signal level of an input image in a current frame by referencing process information concerning a preceding frame generated by a process information generation unit () in the preceding frame, and a display control unit () that determines maximum luminance, adjusts luminance on a per area basis of the multiple areas, and displays the output image at the adjusted luminance.

Display device, display method, recording medium, and television receiver

A technology of preventing feeling of a viewer on brightness from significantly changing when content is switched is provided. A video display device () includes a calculation unit () that calculates video feature relating to a display video, and a mute video display unit that displays a mute video posterior to a first display video, in which luminance of the mute video is luminance corresponding to a value of the video feature relating to the first display video.

Video display device, television receiver, transmitting device, control program, and recording medium

A service information processing unit acquires, from service information of content, current information that indicates luminance information of a video at a current time point and preannouncement information that indicates luminance information of the video after a given time from the current time point, a level control unit, when a luminance range indicated by the preannouncement information changes from a luminance range of the video at the current time point, changes a luminance range more gently compared to a change of the luminance range, and a display unit displays the video in the luminance range defined by the level control unit.

Reception device, broadcast system, reception method, and program

A video signal conversion device is realized in which even in a case where an HDR video signal following a first video format is converted into a HDR video signal following a second video format, supplementary information related to the HDR video signal following the original first video format is not lost. The video signal conversion device (or) includes: a conversion unit () that converts the high dynamic range video signal following the first video format into the high dynamic range video signal following the second video format; and an output unit () that outputs the supplementary information which is related to the high dynamic range video signal following the first video format.

Video signal conversion device, video signal conversion method, video signal conversion system, control program, and recording medium

A technology of preventing feeling of a viewer on brightness from significantly changing when content is switched is provided. A transmitting device () includes a calculation unit () that calculates a video feature of a transmission video signal, and a mute video generation unit () that generates a mute video posterior to a first video signal, in which luminance of the mute video is luminance corresponding to a value of a video feature relating to the first video signal.

Video processing device, transmitting device, control program, and recording medium

In a display control circuit of this invention, a write gray scale level determining part outputs write gray scale level data for performing overshoot drive on a liquid crystal display device. Moreover, an achievable gray scale level determining part outputs achievable gray scale level data indicating a gray scale level which achieves after a lapse of one frame. Further, an error noise predicting part compares, with a predetermined threshold value, predicted values as differences between gray scale level values of plural pieces of input image data and a mean gray scale level value of these gray scale level values to control a data selecting part such that when at least one of the predicted values exceeds the threshold value, the data selecting part gives, to an image compressing part, the input image data rather than the achievable gray scale level data predicted that a decoding error becomes large. This configuration allows suppression or elimination of after-image noise.

Display control circuit, liquid crystal display device including the same, and display control method

A method is provided of transferring data from a sender process to a plurality of receiver processes in a hardware description language, which uses a language construct which effects synchronised communication between the sender process and the receiver processes.

Growing community of inventors

Sakai, Japan

Ryoji Sakurai