Abstract: A display device includes: a display device main body including a display panel and a screen calibration function unit that calibrates a display state of the display panel; and a cover that covers the display panel, the cover including an optical sensor in a surface facing the display panel. The optical sensor measures a screen state of the display panel in a state where the display panel is covered with the cover, and sends a measured value of the optical sensor to the display device main body. The screen calibration function unit calibrates the display state of the display panel by using the measured value.

Abstract: A display device, comprising: a display panel; a driver configured to drive the display panel based on a video signal; and a detector configured to obtain a first detection value by detecting reflective light from a reflective media, which occurs when ambient light is irradiated to the reflective media, while obtaining a second detection value by detecting reflective light from the reflective media, which occurs when the display panel irradiates display light to the reflective media.

Abstract: A display device, comprising: a display panel; a driver configured to drive the display panel based on a video signal; and a detector configured to obtain a first detection value by detecting reflective light from a reflective media, which occurs when ambient light is irradiated to the reflective media, while obtaining a second detection value by detecting reflective light from the reflective media, which occurs when the display panel irradiates display light to the reflective media.

Abstract: A display device includes a display panel, a driver, a detector, and an acquisition part. The driver drives the display panel based on a video signal. The detector obtains a first detection value by detecting reflective light from reflective media, which occurs when ambient light is irradiated to reflective media, while obtaining a second detection value by detecting reflective light from reflective media, which occurs when the display panel irradiates its display light to reflective media. The driver corrects a drive value for the display panel such that the second detection value approaches the first detection value or such that the chromaticity represented by the second detection value approaches the chromaticity represented by the first detection value, and therefore the acquisition part acquires information concerning the color temperature of ambient light based on the corrected drive value.

Abstract: A display device includes a display panel, a driver, a detector, and an acquisition part. The driver drives the display panel based on a video signal. The detector obtains a first detection value by detecting reflective light from reflective media, which occurs when ambient light is irradiated to reflective media, while obtaining a second detection value by detecting reflective light from reflective media, which occurs when the display panel irradiates its display light to reflective media. The driver corrects a drive value for the display panel such that the second detection value approaches the first detection value or such that the chromaticity represented by the second detection value approaches the chromaticity represented by the first detection value, and therefore the acquisition part acquires information concerning the color temperature of ambient light based on the corrected drive value.

Abstract: A display device includes a display panel body that has a display surface emitting light, and a brightness sensor unit that is fixed on the display surface of the display panel body and includes a brightness sensor detecting a brightness of the light from the display surface.

Abstract: In a display device, a signal level detection circuit detects RGB signal levels for each pixel from an image signal, and then a control circuit detects an area using a gray scale of a single color based on RGB signal levels for each pixel. A first color conversion circuit carries out an image correction on an image signal while a second color conversion circuit carries out another image correction-on an image signal. An H/V position control circuit extracts an image signal of an area detected by the control circuit from an image signal subjected to the image correction of the second color conversion circuit. An image superposition circuit superposes the image signal extracted by the H/V position control circuit with the image signal subjected to the image correction of the first color conversion circuit, thus displaying the superposed image signal on a display.

Abstract: A display device includes a display panel body that has a display surface emitting light, and a brightness sensor unit that is fixed on the display surface of the display panel body and includes a brightness sensor detecting a brightness of the light from the display surface.

Abstract: In order to automatically distinguish a type of cable connected to a display apparatus, and transmit appropriate specification information to a host, when a host 10 and a display apparatus 100 are connected via a DVI-D to DVI-D cable 14 for digital signal, a DDC 5V from the host is applied to an emitter of a detection transistor 19, and a lower voltage due to a resistor 17 is applied to its base so that the detection transistor turns on. A collector voltage thus becomes an H level so that a multiplexer 21 is switched to the side of a non-volatile memory 23 in which a digital EDID is stored. When they are connected via a D-Sub to DVI-I conversion cable 15 for analog signal, a DDC 5V terminal and an HPD terminal of the cable are short circuited, so the detection transistor turns off, the collector voltage becomes an L, and the multiplexer is switched to the non-volatile memory side in which an analog EDID is stored.

Abstract: In order to automatically distinguish a type of cable connected to a display apparatus, and transmit appropriate specification information to a host, when a host 10 and a display apparatus 100 are connected via a DVI-D to DVI-D cable 14 for digital signal, a DDC 5V from the host is applied to an emitter of a detection transistor 19, and a lower voltage due to a resistor 17 is applied to its base so that the detection transistor turns on. A collector voltage thus becomes an H level so that a multiplexer 21 is switched to the side of a non-volatile memory 23 in which a digital EDID is stored. When they are connected via a D-Sub to DVI-I conversion cable 15 for analog signal, a DDC 5V terminal and an HPD terminal of the cable are short circuited, so the detection transistor turns off, the collector voltage becomes an L, and the multiplexer is switched to the non-volatile memory side in which an analog EDID is stored.