Abstract: The present invention provides a device and a method for compensating a voltage of a primary color subpixel, and a display device. The voltage compensation device includes: a grayscale determination module for determining whether a display grayscale value corresponding to a data voltage of the primary color subpixel is larger than a preset grayscale value; a first compensation module for performing voltage compensation on the primary color subpixel according to primary color mura information acquired in advance in a primary color test picture, when the display grayscale value is determined to be larger than the preset grayscale value; and a second compensation module for performing voltage compensation on the primary color subpixel according to gray mura information acquired in advance in a gray test picture, when the display grayscale value is determined to be equal to or smaller than the preset grayscale value.

Abstract: The present invention ensures the visibility of a character or a drawing displayed on a screen. The illuminance of one or more partial areas forming a display unit is measured, and a video display position is set to an area except for the partial area where the illuminance is a reference value or more.

Abstract: An object of the present invention is to simplify an operation for calibration of a camera and to shorten a time necessary for the calibration.

Abstract: Embodiments of the present invention disclose a method and an apparatus for obtaining a video quality parameter and an electronic device. The method includes dividing a target video segment into at least one video subsegment, where duration of every video subsegment is at least time perceivable by human eyes; obtaining a video quality parameter of the video subsegment; and processing the video quality parameter of the video subsegment, and obtaining a video quality parameter of the target video segment.

Abstract: Accurately estimating the image quality of video is still difficult, especially when there is no reference video available. A method for determining a quality measure for a video image comprises selecting a measuring point, such as a MB, determining a context area around the measuring point, calculating a variance of pixel values in the context area, calculating a variance of pixel values in the measuring point, calculating a relation between the two variances of pixel values, and averaging said relations for a plurality of measuring points, wherein a quality measure for a video image is obtained.

Abstract: A method for presentation interaction. The method includes, receiving by a computer system an indication of a manual selection of a region proximate to an audience member of an audience wherein the indication is received via an interaction with a displayed image of the audience. The method also includes utilizing a microphone array communicatively coupled with a beam-forming component of the computer system to focus audio pickup from the region proximate to the audience member in response to receiving the indication. The method also includes displaying an enhanced image of the region proximate to the audience member using the computer system in response to receiving the indication.

Abstract: When a user uses a display device for the first time in a factory mode, whether or not there are defective pixels is examined, and a guide message for setting initial settings is provided, so the user can use the display device in an optimal environment. As a result, if the display device has defective pixels, the user can be provided with after-sales service at an appropriate time, and use the display device at its full potential in an environment most suitable for the display device is set.

Abstract: The present invention provides a method and device that can easily configure an entertainment system automatically or semi-automatically. The reconfiguration of the entertainment system can be achieved by cycling through the possible configurations of the entertainment system (i.e. different combinations of operational states of the components that make up the entertainment system) by changing various operational states of certain components until an operable configuration is found. The invention may be implemented in any component of the entertainment system including a set-top-box, satellite receiver or a remote control.

Abstract: Disclosed is a digital signal processing architecture for a flat panel display having non-uniform regions, which is not by means of materials, optical films or fabrication processes. Therefore, the manufacturing cost and complexity of the flat panel display are not negatively affected. In the digital signal processing architecture, a test is performed on the panel for identifying all pixel locations in non-uniform regions and non-uniform types. Then, input video signals are compared with data about the relative non-uniform regions for determining whether the video signal falls in a normal-region pixel or a non-uniform region pixel. Then the non-uniform compensation on the video signal falling in the non-uniform region pixel is based on the non-uniform type, so that the video signals displayed on the panel are not negatively affected.

Abstract: The present invention discloses an HDTV, and a method for controlling adjustment of the HDTV, which make it possible to set control information of the HDTV easily at low cost without unpacking the TV set. Adjustment data is included in an INFO frame, transmitted from an external device, and written into a register of an HDMI receiver 14 through a video signal input terminal 13. Further, a microcomputer 15 reads the adjustment data and controls the adjustment of the HDTV 11 based on contents of the data.

Abstract: A display control circuit incorporating a RAM in which display data is stored, comprises an oscillation circuit which oscillates a reference clock to define a transfer period in which the display data is transferred from the RAM to a display and a counter circuit which counts the number of the reference clocks, and the transfer period is determined by the number of counts of the reference clocks by the counter circuit. In addition, the oscillation circuit starts oscillation when a transfer request of the display data is generated while the oscillation is stopped, and stops the oscillation when an access request from the CPU is generated during the oscillation, and resumes the oscillation when the access request is stopped.

Abstract: A vector waveform correction device corrects a vector waveform displayed on a vector scope. A first color difference signal and a second color difference signal demodulated from a chrominance signal of a composite video signal are input as x and y, and a vector (x, y) is partially rotated in a unit of part of all the scanning lines.

Abstract: The invention is directed to an apparatus for calibrating an output of an image output device, comprising an image input device configured to image an output of the image output device; and a test pattern generator having an output of a dynamic test patch area and a grating area connected to an input of the image output device and responsive to the image input device for adjusting an intensity level of the dynamic test patch area to match an average intensity level of the grating area.

Abstract: A graphics system comprises pixel calculation units and a sample buffer which stores a two-dimensional field of samples. Each pixel calculation unit selects positions in the two-dimensional field at which pixel values (e.g. red, green, blue) are computed. The pixel computation positions are selected to compensate for image distortions introduced by a display device and/or display surface. Non-uniformities in a viewer's perceived intensity distribution from a display surface (e.g. hot spots, overlap brightness) are corrected by appropriately scaling pixel values prior to transmission to display devices. Two or more sets of pixel calculation units driving two or more display devices adjust their respective pixel computation centers to align the edges of two or more displayed images. Physical barriers prevent light spillage at the interface between any two of the display images. Separate pixel computation positions may be used for distinct colors to compensate for color distortions.

Abstract: A display test system includes a symbol source and a controller connected to the symbol source for receiving a symbol in response to a testing event whereupon the controller causes the display to produce a first area having a first light intensity, and the symbol at a second light intensity within the first area. A viewer uses an input device to verify to the controller the ability to discern the difference in light intensities of the symbol and the first area by describing or identifying the symbol.

Abstract: A system and method for configuring and installing devices of a home entertainment system includes a portable memory media that can be installed in a memory slot of a television. The portable memory media can be preprogrammed with set-up instructions that are displayed at the television. A user can follow these instructions step-by-step in order to properly install and configure a television and any peripheral entertainment devices.

Abstract: In a projection display system, a sample of the light output may be extracted and used to calibrate the display. A sample may also be used in multi-display systems (e.g., light walls), wherein the information from one display in the form of a light sample may be shared with one or more additional displays. In this way, certain characteristics of multiple displays may be correlated with one another to produce a uniform display output.

Abstract: The present invention relates a method and system for providing aging of a cathode ray tube. The system comprises a video processing circuit that is configured to generate a first luminance signal and a second luminance signal. The system also comprises an electron gun located in the cathode ray tube, that is coupled to the video processing circuit. The electron gun is configured to operate at a first luminance level corresponding to the first luminance signal for a first predetermined period of time, and a second luminance level corresponding to the second luminance signal for a second predetermined period of time.

Abstract: A display apparatus in which a marker signal created by combining primary color signals of predetermined levels in an arbitrary pattern and designating a specified area of a screen is detected, the screen is divided into a plurality of areas and a display formed of an image different in picture quality is present at each one of the plurality of areas, a control signal for suppressing the luminance of the marker signal is generated, to thereby make the marker signal inconspicuous.

Abstract: To facilitate determination of a black point on a display unit, a reference brightness region and a comparison brightness region are displayed on the display unit. The former emits at a reference brightness that is used as a reference for determining the black point. The reference brightness is set by inputting a predetermined input value to the display unit. The brightness on the comparison brightness region is compared with the reference brightness. The comparison brightness is changed by increasing and decreasing the input value to the display unit to obtain a critical input value representing the input value wherein an operator can first distinguish the comparison brightness region from the reference brightness region. The two regions are arranged so that the comparison brightness region which is, for example, a star mark is completely surrounded by the reference brightness region, or vice versa.

Abstract: A correct estimation of a focussed condition of the cathode ray tube can be performed. A predetermined image (14) is displayed at a predetermined position on a screen of a cathode ray tube. A focussing voltage of the cathode ray tube is varied in a condition that a distance from a reference position to a predetermined position in the image is detected. When the changing state of the detected distance is displayed on a predetermined display means (11a), an optical low pass filter is arranged in the optical system such as the incident part of a sensor (15) or the like. From an output of the sensor (15), a condition is determined as the just-focussed condition, the under-focussed condition or the over-focussed condition and the beam spot diameter is calculated from the detected line width. On the basis of the decision of the under-focussed or the over-focussed condition and the calculated value of the beam spot diameter, a focus quantitative value is obtained.

Abstract: A display apparatus for displaying adjustment data for a video display on an on-screen display includes video signal processing circuitry, input circuitry for entering user adjustment data, a microcomputer for receiving the user adjustment data and for controlling the video signal processing circuitry based on the user adjustment data, a memory connected to the microcomputer for storing the user adjustment data and factory preset data for the video display, a display screen connected to the video signal processing circuitry, and an on-screen display portion for displaying the user adjustment data and the factory preset data simultaneously on the display screen.

Abstract: A self-diagnostic circuit and method for implementing the same for use with a video display device to conduct a self-diagnostic test of respective hardware components such as a ROM, RAM and EEPROM within the video display device using a built-in microprocessor. The circuit allows a video display device to perform a diagnostic test on its individual hardware components within a tested video display device and to inform an operator of any malfunction thereof.

Abstract: An apparatus and method for adjusting video characteristics of a CRT screen having a plurality of adjustment mechanisms for adjusting visual characteristics of the CRT screen. Further included is a video playback mechanism adapted to display a screen format on the CRT video screen upon the actuation thereof. The screen format comprises a plurality of areas of various colors. A viewing mechanism is included to allow viewing of the screen format of the CRT screen therethrough. Upon viewing the screen format of the CRT screen through the viewing mechanism, a user may manipulate the adjustment mechanisms for properly adjusting the visual characteristics of the CRT screen.

Abstract: A method for self-diagnosing a television(TV) receiver, wherein the TV receiver has a controller, which includes a central processing unit, a read only memory, a random access memory(RAM) and an erasable-programmable read-only memory (EPROM), for controlling the self-diagnosing and a power supply unit for producing both an initial power for driving the controller and an operational power for driving other units of the TV receiver except for the controller, comprises the steps of: (a) determining whether the initial power is applied; (b) first self-diagnosing the TV receiver, if the initial power is supplied, so as to determine either to wait a turn-on signal to turn the TV receiver on or to produce an alarm signal warning an abnormal state; (c) determining whether the turn-on signal is received; and (d) second self-diagnosing the TV receiver while the operational power is activated by the received turn-on signal, to produce a result of the second self-diagnosis onto a screen of the TV receiver.

Abstract: A test pattern generating apparatus and method of a frequency converter in a VCR, in which an on-screen display (OSD) circuit is used to output a test pattern instead of using an internal test pattern generator. The apparatus includes a microprocessor for outputting data, clock, and strobe signals to the OSD circuit in response to the operation of a test switch, video and audio muting circuits for muting the video and audio signals input signals to the frequency converter in response to the operation of the test switch, and the OSD circuit for generating the test pattern in accordance with an output of the microprocessor.

Abstract: Disclosed is a digital signal processing architecture for a flat panel display having non-uniform regions, which is not by means of materials, optical films or fabrication processes. Therefore, the manufacturing cost and complexity of the flat panel display are not negatively affected. In the digital signal processing architecture, a test is performed on the panel for identifying all pixel locations in non-uniform regions and non-uniform types. Then, input video signals are compared with data about the relative non-uniform regions for determining whether the video signal falls in a normal-region pixel or a non-uniform region pixel. Then the non-uniform compensation on the video signal falling in the non-uniform region pixel is based on the non-uniform type, so that the video signals displayed on the panel are not negatively affected.