Abstract: A flat display apparatus has a flat display panel; a frame that is installed on a rear face side of the display panel; a cover that covers at least a rear face side of the frame; and a high-voltage power supply that applies high voltage to the display panel. The high-voltage power supply has a plurality of cases, each of which encloses one or more transformers and rectifier circuits, and obtains high voltage by connecting the plurality of cases in series, and the plurality of cases are arranged in a space created between the frame and the cover so as to be disposed on a plane in parallel with a screen of the display panel.

Abstract: A semiconductor display device comprising a pixel portion and a signal line driver circuit comprising a first circuit, a second circuit configured to control timing of the sampled serial video signals by the first circuit, and a third circuit configured to perform signal processing on the parallel video signals, wherein the second circuit comprises a first semiconductor element formed over a first substrate, the first semiconductor element including a first semiconductor layer, wherein the third circuit comprises a second semiconductor element formed over a second substrate, the second semiconductor element including a second semiconductor layer, wherein the pixel portion comprises a third semiconductor element formed over the second substrate, the third semiconductor element including a third semiconductor layer, wherein the first semiconductor layer comprises silicon or germanium, and wherein each the second semiconductor layer and the third semiconductor layer has a wider bandgap than the first semiconduct

Abstract: The present invention relates to an image display apparatus for forming an image with a plurality of luminescent spots to be precisely aligned in a matrix. For example, a spacer disposed between an electron source and a face plate causes luminescent spots on the face plate spaced unevenly. The luminescent spots spaced unevenly will produce a visual unevenness in luminance which deteriorates the quality of produced image. By modifying the quantity of light of luminescent spots spaced unevenly, the visual unevenness in luminance is compensated.

Abstract: To improve mechanical strength of the surface of a substrate of an airtight container in the vicinity of the frame thereof and thus improve reliability of the airtight container, the airtight container satisfies H1<H2<H3, and 1.3(H2?H1)/L<(H3?H2)/W, where H2 is the height of an edge of the frame on the side of an internal space of the airtight container, H3 is the height of an edge of the frame on the opposite side of the side of the internal space of the airtight container, W is the width of the frame, H1 is the average height of spacers, and L is an interval of the adjacent spacers.

Abstract: An electron emission display and a driving method thereof adjust a brightness differently according to a brightness of a frame in order to reduce power consumption and prevent a gradual failure from occurring, and easily recognize a change of the brightness. A pixel portion receives a data signal and a scan signal, and displays an image. A data driver generates the data signal using video data and transfers the data signal to the pixel portion. A scan driver transfers the scan signal to the pixel portion. A timing controller transfers a drive signal to drive the data driver and the scan driver, to the data driver and the scan driver. A data processor generates a control signal corresponding to frame data obtained by summing a value of video data inputted during one frame. A power supply section generates a drive voltage and transfers the drive voltage to the pixel portion, the data driver, the scan driver, the timing controller, and the data processor.

Abstract: An electron emission display and a driving method thereof, where a brightness is adjusted differently according to a brightness of a frame in order to reduce power consumption and prevent a brazing fire from occurring, and to easily recognize a change of the brightness.

Abstract: An image projection system has an illumination system for moving bands of different colored light over the light valve. The image projection system identifies the illumination color of each row of pixels of this light valve, manages the video data of the images to control the writing of the pixels, synchronizes the video data sent to each row of pixels according to the identified illumination color of the row. At least one photosensitive sensor is level with certain rows of pixels of the light valve, is incorporated in the substrate and is designed to identify in real time the illumination color of each row.

Abstract: A display device equipped with a display unit for displaying information includes a terminal connected to the display unit and adapted to supply a predetermined potential to an electrode in the display unit, an insulator provided outside the display unit and adapted to cover the terminal, and a support structure for supporting the display unit, the display device characterized by having one of the following features (1) The support structure is equipped with a retaining portion for retaining the insulator independently of the support of the display unit. (2) It is equipped with a guide for guiding the conductor cable along the conductor cable between the terminal and the power source.

Abstract: A panel for a color cathode ray tube includes an opening portion provided with a seal end surface to which a funnel is sealed through a frit glass. The seal end surface of the opening portion is a rough surface comprising a large number of streak-shape ridges and troughs in which minute recesses and protrusions range in a circumference direction of the seal end surface.

Abstract: In analogue television systems, it is known to compensate for the receiver-end luminance defects which are caused by transmitter-end low-pass filtering of the gamma-predistorted chrominance signals, with the aid of transmitter-end correction signals. This method for luminance correction can also be used in connection with modern picture coding methods such as e.g. MPEG. To that end, the chrominance is encoded and decoded again in the encoder. A correction signal is derived from the decoded chrominance signal and is used during the encoding of the luminance. The macroblocks which are motion-compensated for prediction are based on the correspondingly decoded chrominance signal and on the decoded, corrected luminance signal.

Abstract: A display apparatus for receiving a picture signal having video and synchronizing components includes a matrix of display cells arranged in an array of M columns by N rows. Display cells in the matrix are individually addressable by row and column signals so as to receive the video component of the picture signal in response thereto. A first shift circuit coupled to the matrix provides the column signals in response to a first clocking signal. A second shift circuit coupled to the matrix provides the row signals in response to a second clocking signal. A synchronizing detector or gate circuit coupled to the first and second shift circuits receives the synchronizing component of the picture signal and produces the second clocking signal in response to a preselected pointer signal from the first shift circuit. A phase locked loop circuit coupled to the first shift circuit receives the second clocking signal and produces the first clocking signal in response thereto.

Abstract: A video quality improvement method and apparatus for a television system recovers lost brightness information from the chrominance channels of an encoder due to processing errors, such as quantization roundoff errors, and adds it to the luminance input to the luminance channel of the encoder. Component signals from a video source are input to the encoder. The encoder provides an encoded video output signal as well as reconstructed component signals. From the encoder characteristics the processing errors for the chrominance channels are determined. The partial derivatives for each of the component signals are obtained, and the error in brightness is determined by summing the products of the errors and the corresponding chrominance partial derivatives. The luminance component signal is corrected by dividing the error in brightness by the luminance partial derivative and subtracting the result from the input luminance component signal. The corrected luminance component signal is processed by the encoder.