Japan Display Inc.

Japan Display West Inc.

Sony Corporation

Amane Higashi

Akira Sakaigawa

Masaaki Kabe

Toshiyuki Nagatsuma

Kojiro Ikeda

Tae Kurokawa

Yasuo Takahashi

Tsutomu Harada

Fumitaka Gotoh

Masaya Tamaki

Naoyuki Takasaki

Fumitaka Goto

Hiroki Uchiyama

Masashi Mitsui

Hirokazu Tatsuno

Koji Noguchi

Yasuyuki Teranishi

Hironao Tanaka

Yukiko Iijima

Takeo Koito

Takahiro Ochiai

Shinichiro Oka

Hidemasa Yamaguchi

Daisuke Takama

Yoko Fukunaga

Yasuyuki Matsui

Yingbao Yang

Yuzo Kanari

Takeyuki Tsuruma

Harumi Okuno

Masayuki Ito

Soichiro Kurokawa

Makoto Watanabe

Tae Nakahara

Shunsuke Noichi

Kouichi Shirai

Shiichiro Sarai

Youbun Ito

Yusuke Goto

A method of driving an image display apparatus which includes an image display panel having a plurality of pixels arrayed in a two-dimensional matrix and each configured from a first subpixel for displaying a first primary color, a second subpixel for displaying a second primary color, a third subpixel for displaying a third primary color and a fourth subpixel for displaying a fourth color, and a signal processing section. The signal processing section is capable of calculating a first subpixel output signal, a second subpixel output signal, a third subpixel output signal, and a fourth subpixel output signal. The method includes a step of calculating a maximum value (V(S)) of brightness, a saturation (S) and brightness (V(S)), and determining the expansion coefficient (&#x3b1;).

Driving method for image display apparatus

According to one embodiment, a display device includes a display panel, a light source, a light guide and a prism sheet. The display panel includes a display area in which unit pixels each containing first sub-pixels and second sub-pixels are arranged along a first direction and a second direction. In the display area, the first sub-pixels have a width different from that of the second sub-pixel in at least one of the first direction and the second direction, or each unit pixel contains different numbers of first sub-pixels and second sub-pixels. The prism sheet is interposed between the light guide and the display panel and includes prisms extending along a third direction inclined with respect to the second direction by an acute angle of inclination.

Display device and method

In a display device, pixels each including first to fourth subpixels that respectively display first to third primary colors and fourth color are arranged on an image display panel. A lighting unit emits light to the panel from the rear thereof. A control unit calculates a required luminance value for each block of the display surface of the panel based on an input image signal, determines a light source lighting amount of the lighting unit based on luminance distribution information on the lighting unit so as to satisfy the required luminance value, generates luminance information on each pixel based on the luminance distribution information and light source lighting amount, generates an output image signal that drives the subpixels based on the luminance information and input image signal, controls the lighting unit by the light source lighting amount, and controls the panel by the output image signal.

Display device and display device drive method

A driving method for an image display apparatus which includes an image display panel having a plurality of pixels arrayed in a two-dimensional matrix and each configured from a first subpixel for displaying a first primary color, a second subpixel for displaying a second primary color, a third subpixel for displaying a third primary color and a fourth subpixel for displaying a fourth color, and a signal processing section. The signal processing section is capable of calculating a first subpixel output signal, a second subpixel output signal, a third subpixel output signal, and a fourth subpixel output signal. The driving method includes a step of calculating a maximum value (V(S)) of brightness, a saturation (S) and brightness (V(S)), and determining the expansion coefficient (&#x3b1;).

Second barrier electrodes are arranged under first barrier electrodes so as to fill gaps between the first barrier electrodes, while an insulating layer is located between the first barrier electrodes and the second barrier electrodes. The number of first barrier electrodes and the number of second barrier electrodes in each barrier pitch are 6 or more. The positions of the barriers formed by the first barrier electrodes and the second barrier electrodes are controlled by the reception of a signal representing detected positions of the eyes of a viewer. If pitches of the first barrier electrodes are defined as BE, and the widths of regions in which the first barrier electrodes are overlapped with the second barrier electrodes are defined as BA, a ratio BA/BE of the widths BA to the pitches BE are 0.3 or smaller. This configuration can suppress the occurrence of moire.

Three-dimensional display device

According to an aspect, an image display panel includes: a first pixel including (d&#x2212;1) sub pixels, which are first to (d&#x2212;2)-th sub pixels and a (d&#x2212;1)-th sub pixel, and a second pixel that is adjacent to the first pixels and includes (d&#x2212;1) sub pixels, which are first to (d&#x2212;2)-th sub pixels and a d-th sub pixel. A region of the image display panel includes a first pixel display region and a second pixel display region. The first to (d&#x2212;2)-th sub pixels of the first pixel, one part of the (d&#x2212;1)-th sub pixel, and one part of the d-th sub pixel are arranged in the first pixel display region. The first to (d&#x2212;2)-th sub pixels of the second pixel, the other part of the (d&#x2212;1)-th sub pixel, and the other part of the d-th sub pixel are arranged in the second pixel display region.

Image display panel, image display device and electronic apparatus

A display device includes a signal processing unit that receives input signals, and calculates output signals to a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel. The signal processing unit calculates a frequency of pixels belonging to each of a plurality of partitions using a light quantity of a surface light source. The signal processing unit calculates an index value for each of the partitions by at least multiplying the cumulative frequency being obtained by sequentially adding the frequency of pixels from a partition having the maximum light quantity among the partitions, and the number of partitions representing a position of a partition to which the cumulative frequency belongs counted from the partition having the maximum light quantity. The signal processing unit controls luminance of the surface light source based on a partition in which the index value exceeds a threshold.

Display device

According to an aspect, a display device includes: an image display panel in which pixels are arranged in a two-dimensional matrix, each of the pixels including a first sub-pixel displaying a first color, a second sub-pixel displaying a second color, a third sub-pixel displaying a third color, and a fourth sub-pixel displaying a fourth color; and a signal processing unit that converts input values of input signals into extended values in an extended color space to generate output signals, and outputs the generated output signals to the image display panel. The signal processing unit changes the output signals for the first to fourth sub-pixels based on at least saturation of the input signals.

Display device, method for driving the same, and electronic apparatus

According to an aspect, a display device includes an image display panel in which pixels each including first to fourth sub-pixels are arranged in a two-dimensional matrix; and a signal processing unit that converts an input signal into an output signal and outputs the generated output signal to the image display panel. The signal processing unit determines an expansion coefficient, obtains a generated signal of the fourth sub-pixel in each pixel based on input signals of the first to the third sub-pixels in the pixel itself and the expansion coefficient, obtains an output signal for the fourth sub-pixel in each pixel based on a generated signal of the fourth sub-pixel in the pixel itself and a generated signal of the fourth sub-pixel in an adjacent pixel to be output to the fourth sub-pixel.

Display device, method of driving display device, and electronic apparatus

According to one embodiment, a display device includes a switching liquid crystal unit, a display, and a controller. The switching liquid crystal unit includes optical elements switching an aperture pattern including an aperture portion and a light-shielding portion. The display overlaps the switching liquid crystal unit and displays parallax images including right and left eye images. The controller acquires positional information relating to a position of a viewer, and controls a position of the aperture pattern. The controller switches the aperture pattern from a first aperture pattern to a second aperture pattern so that a right eye always views the right eye image and a left eye always views the left eye image, and starts the switching before the viewer moves to an optimal switching position where a luminance viewed from the first aperture pattern is substantially equal to a luminance viewed from the second aperture patterns.

Display device and electronic device

A display device includes: an image display panel including a plurality of pixels each including first to fourth sub-pixels; and a signal processing unit. The signal processing unit determines an expansion coefficient related to the image display panel, obtains output signals of the first to the third sub-pixels based on at least input signals of the first to the third sub-pixels and the expansion coefficient to be output to the first to the third sub-pixels respectively, obtains a fourth sub-pixel correction value as a correction value of an output signal of the fourth sub-pixel based on the input signals of the first to the third sub-pixels and the expansion coefficient, and obtains the output signal of the fourth sub-pixel based on the input signals of the first to third sub-pixels, the expansion coefficient, and the fourth sub-pixel correction value to be output to the fourth sub-pixel.

According to an aspect, a display device includes: an image display panel in which pixel units each including a first pixel including a first, a second, and a third sub pixels, and a second pixel including the first, the second, and a fourth sub pixels are periodically arranged; and a signal processing unit. The signal processing unit obtains a corrected output signal of the third sub pixel of the first pixel based on an input signal of the third sub pixel of the first pixel and an input signal of the third sub pixel of the second pixel of the same pixel unit, and obtains a corrected output signal of the fourth sub pixel of the second pixel based on an input signal of the fourth sub pixel of the first pixel of the same pixel unit and an input signal of the fourth sub pixel of the second pixel.

Image display device, electronic apparatus, and method for driving image display device

Growing community of inventors

Tokyo, Japan

Amane Higashi