Abstract: A display device incudes: a display panel including a plurality of pixels; and a dimming panel that is disposed between the display panel and a light source of light to be emitted to the display panel and includes a plurality of dimming pixels. When one of the pixels produces an output at highest luminance and the other pixels produce an output at lowest luminance to the display panel, the light is transmitted through a predetermined one of the dimming pixels located on an optical axis of the light that is emitted to the one of the pixels and through the other dimming pixels arranged around the predetermined dimming pixel. A degree of transmission of the light through the other dimming pixels decreases as the light is away along one direction from the predetermined dimming pixel, and there are a plurality of directions having different degrees of the decrease.

Abstract: According to an aspect, a display device includes a display panel configured to display an image; and a light source configured to emit light to the display panel. The light source includes a first light source configured to emit light in a first primary color, a second light source configured to emit light in a second primary color, and a third light source configured to emit light in a third primary color. A frame period that is a display period of one frame image includes a predetermined number of subframe periods, the predetermined number is four or greater, and color reproduction of the one frame image is performed by a combination of colors that are output in the predetermined number of subframe periods. An output order of colors of the subframe periods is an order of colors in a clockwise direction or in a counterclockwise direction in a hue circle.

Abstract: A liquid crystal display device includes: a liquid crystal panel having pixels with a first electrode and a second electrode; a control circuit; and a counter. The number and an arrangement of pixels where a potential of the second electrode is higher than that of the first electrode in a first mode equal the number and an arrangement of pixels where the potential of the first electrode is higher than that of the second electrode in a second mode. The counter increases a count while the panel operates in the first mode, and decreases the count while the panel operates in the second mode. The control circuit operates the panel in the first mode when the count at a determination timing is not greater than a first threshold, and operates the panel in the second mode when the count at the determination timing is not less than a second threshold.

Abstract: According to an aspect, a display device includes: a display panel that has a display area in which a plurality of pixels are arranged; a light source configured to illuminate the display area; a first control circuit configured to receive first signals corresponding to a first partial image to be displayed in a portion of the display area; and a second control circuit configured to receive second signals corresponding to a second partial image to be displayed in another portion of the display area. The light source has a plurality of light-emitting areas in each of which a light emission intensity is individually controllable. The first control circuit is configured to transmit lighting quantity information indicating the light emission intensity of each of the light-emitting areas to the second control circuit.

Abstract: A method of evaluating metal contamination by measuring the amount of metal contaminants to a silicon wafer in a rapid thermal processing apparatus includes steps of obtaining a Si single crystal grown by the Czochralski method at a pulling rate of 1.0 mm/min or lower, the crystal having oxygen concentration of 1.3×1018 atoms/cm3 or less, slicing silicon wafers from the Si single crystal except regions of 40 mm toward the central portion from the head of the single crystal and 40 mm toward the central portion from the tail, heat-treating the silicon wafer with a rapid thermal processing apparatus and transferring contaminants from members in a furnace of the rapid thermal processing apparatus to the silicon wafer, and measuring a lifetime of the silicon wafer to which contaminants are transferred.

Abstract: A light source section 21 includes a red light source 22r, a green light source 22g, and a blue light source 22b, and one frame period is divided into four subfield periods. Light sources of each color respectively emit light in blue, green, and red subfield periods, and the red light source 22r and the green light source 22g emit light in a yellow subfield period. Light emission intensity of the blue light source 22b in the blue subfield period is set to twice light emission intensities of the red light source 22r and the green light source 22g in other subfield periods. Color breakup is reduced by displaying the yellow subfield, and light utilization efficiency improved by setting transmittance of a light modulation element 16 to 100% when a white signal by which each gradation of red, green, and blue becomes maximum is input. With this, a field sequential type display device which can reduce color breakup and has high light utilization efficiency is provided.

Abstract: A field-sequential color image display device is provided which can sufficiently reduce power consumption while suppressing color breakup. In a liquid crystal display device that displays a color image under a field sequential system in which each frame period includes four field periods corresponding to three primary colors, namely red, green, and blue, and a white color, the emission intensity of a light source section (120) during the white field period is determined in advance so that the white color is displayed at a target maximum luminance when the transmittance of a pixel array section (110) is at its maximum during all of the four field periods. A drive control section (200) separates an input image signal into white, blue, green, and red components, expands the white component, and then assigns the components to the four field periods.

Abstract: A light source section 21 includes a red light source 22r, a green light source 22g, and a blue light source 22b, and one frame period is divided into four subfield periods. Light sources of each color respectively emit light in blue, green, and red subfield periods, and the red light source 22r and the green light source 22g emit light in a yellow subfield period. Light emission intensity of the blue light source 22b in the blue subfield period is set to twice light emission intensities of the red light source 22r and the green light source 22g in other subfield periods. Color breakup is reduced by displaying the yellow subfield, and light utilization efficiency improved by setting transmittance of a light modulation element 16 to 100% when a white signal by which each gradation of red, green, and blue becomes maximum is input. With this, a field sequential type display device which can reduce color breakup and has high light utilization efficiency is provided.

Abstract: A display device includes a display unit having a function of showing a space behind a display screen transparently and a control unit for controlling the display unit based on an input video signal. The control unit controls the display unit to display a transparent video having a transparent portion through which the space behind the display screen can be seen transparently, while displaying a main video based on the input video signal. The control unit may generate an instruction signal indicating a display period of the transparent video and may control the display unit in accordance with the generated instruction signal, or may control the display unit in accordance with an instruction signal provided externally. With this, there is provided a see-through type display device which does not hinder a vision when displaying a video for a long time.

Abstract: The present invention provides a field-sequential color image display device suppressing color breakup and an increase in power consumption. The liquid crystal display device displays a color image by a field-sequential system in which each frame period includes four field periods corresponding to four colors, white, blue, green, and red, and the liquid crystal display device includes a light source portion which includes blue, green, and red LEDs, and a light source driver circuit. The light source driver circuit generates blue, green, and red light source control signals CswB, CswG, and CswR, and drives the light source portion on the basis of these signals.

Abstract: A display device that can display an image and make a background visible even when the image represented by a display gradation value and a transparency gradation value included in an image information signal is not within a displayable range is provided. Even when the image specified by the display gradation value and the transparency gradation value included in the image information signal is not within the displayable range, the display gradation value and the transparency gradation value can be adjusted by prioritizing the transparency gradation value or prioritizing the display gradation value. In this way, the display device can display the image, make the background transparent, and display the image and the background overlapping each other regardless of whether the image specified by the display gradation value and the transparency gradation value is within the displayable range.

Abstract: Provided is an image display device equipped with a see-through display function allowing the background to be seen through. In a liquid crystal display device (100), a transparent plate (170) is attached such that the incidence angle of source light emitted by a backlight source (160) is Brewster's angle ?b, and therefore, the transparent plate (170) reflects S-wave included in the source light, and allows P-wave included in ambient light incident from the back side to be transmitted therethrough and illuminate a liquid crystal panel (150). Thus, when the backlight source (160) is on, the viewer can see an image displayed on the background, whereas when the backlight source (160) is off, only the background can be seen.

Abstract: A display device includes a display unit having a function of showing a space behind a display screen transparently and a control unit for controlling the display unit based on an input video signal. The control unit controls the display unit to display a transparent video having a transparent portion through which the space behind the display screen can be seen transparently, while displaying a main video based on the input video signal. The control unit may generate an instruction signal indicating a display period of the transparent video and may control the display unit in accordance with the generated instruction signal, or may control the display unit in accordance with an instruction signal provided externally. With this, there is provided a see-through type display device which does not hinder a vision when displaying a video for a long time.

Abstract: A field-sequential color image display device is provided which can sufficiently reduce power consumption while suppressing color breakup. In a liquid crystal display device that displays a color image under a field sequential system in which each frame period includes four field periods corresponding to three primary colors, namely red, green, and blue, and a white color, the emission intensity of a light source section (120) during the white field period is determined in advance so that the white color is displayed at a target maximum luminance when the transmittance of a pixel array section (110) is at its maximum during all of the four field periods. A drive control section (200) separates an input image signal into white, blue, green, and red components, expands the white component, and then assigns the components to the four field periods.

Abstract: There is provided an image display device that includes a display in which a background is transparently seen from a front surface side, and has a high degree of freedom at the time of installation. A liquid crystal panel (32) for adjusting transparency/light-emission adjusts, for each pixel, a ratio between transmitted light-source light and ambient light by respectively controlling a polarization direction of a reflected polarization component of the light-source light irradiated to a reflection-type polarization plate (20) from a light guide plate (180) and a polarization direction of a transmitted polarization component of the ambient light incident to the reflection-type polarization plate (20) from a rear surface side of the display, based on transparent/light-emitting pixel information.

Abstract: Provided is an image display device equipped with a see-through display function allowing the background to be seen through. In a liquid crystal display device (100), a transparent plate (170) is attached such that the incidence angle of source light emitted by a backlight source (160) is Brewster's angle ?b, and therefore, the transparent plate (170) reflects S-wave included in the source light, and allows P-wave included in ambient light incident from the back side to be transmitted therethrough and illuminate a liquid crystal panel (150). Thus, when the backlight source (160) is on, the viewer can see an image displayed on the background, whereas when the backlight source (160) is off, only the background can be seen.

Abstract: In an image display device that divides one frame into a plurality of fields and performs drive operation, a light-source lighting period with a sufficient length is ensured. In a field-sequential image display device, as modes during writing of data into pixel portions, a normal writing mode for writing data into one row at a time and a high-speed writing mode for writing data having the same value into a plurality of rows at a time for each column are prepared. In a blue field (F(B)), data writing processing in the high-speed writing mode is performed. In a green field (F(G)) and a red field (F(R)), data writing processing in the normal writing mode is performed.

Abstract: There is provided an image display device that includes a display in which a background is transparently seen from a front surface side, and has a high degree of freedom at the time of installation. A liquid crystal panel (32) for adjusting transparency/light-emission adjusts, for each pixel, a ratio between transmitted light-source light and ambient light by respectively controlling a polarization direction of a reflected polarization component of the light-source light irradiated to a reflection-type polarization plate (20) from a light guide plate (180) and a polarization direction of a transmitted polarization component of the ambient light incident to the reflection-type polarization plate (20) from a rear surface side of the display, based on transparent/light-emitting pixel information.

Abstract: A display apparatus, and a driving method of driving the display apparatus control color breakup and prevent flicker. A backlight periodically emits a light beam by lighting one type of light source in a subframe period and a light beam by lighting all types of light sources in a subsequent subframe period. A lighting period for a cycle of emission of the same type of color light beams is shorter than a period for a cycle of receiving the video signal.

Abstract: An image display apparatus operates in field sequence mode which effectively reduces the generation of color break. A color break strength calculating unit determines a color break strength that indicates the noticeability of the generation of the color break. A light-source signal generating unit controls each light source so that as the color break strength of a color mixed component having the highest color break strength is higher, the color mixed component is contained more in light output from a light-source unit during the extension subframe period. If there is present a first pixel region as an area including one or more pixel formation regions where an image containing the component of interest is displayed, the color break strength of the component of interest increases more as a magnitude of the component of interest is larger in the first pixel region.