Abstract:
Scanning beam display systems that scan one servo beam and an excitation beam onto a screen that emits visible light under excitation of the light of the excitation beam and control optical alignment of the excitation beam based on positioning of the servo beam on the screen via a feedback control.
Abstract:
A method for calibration is controlled using measurement technology of at least one device unit of a device system which includes a monitor for image processing and a standard light device. The monitor is calibrated, and the luminance is measured at the calibrated monitor and at a standard light device. The actual value of the luminance at the standard light device is compared with the value for the luminance of the monitor. If there is a difference, the standard light device receives a control signal to change the brightness or the contrast. This regulation is continued until no difference exists between the measured actual value at the standard light device and the reference value stored in the memory of the evaluation unit.
Abstract:
An optics assembly for a color measurement system. The optics assembly includes at least one light tube array and a polarization effect minimization element. The optics assembly includes a diffuser, a photocell separator, a precision filter and a second light tube array is provided substantially contained in a housing. The color measurement system includes a multi-purpose filter and the optics assembly. Segmented light is mixed and the polarization qualities of the light are modified so to minimize the effects caused by angular adjustments. A diffuser mixes the segmented light. Additionally, the color measurement system includes an ambient light attachment for collecting light from the viewing area surrounding the computer display. The ambient light collected is then analyzed, and a viewing area profile is created. The viewing area profile then can be used by software to adjust the colors displayed on the computer displays.
Abstract:
An area-control based LED backlight system for a panel is divided into a plurality of independently controllable light emitting regions. A single color sensor or light sensor detects light emitting status of the regions. Reference values corresponding to the regions are set based on a white balance parameter. The reference values are compared to the light emitting status of the regions for performing color components ratio calibration, so as to compensate luminance and chrominance of light emitted from the regions and lightening the panel. Further, a single light sensor is used for detecting light emitted from LED sets of a whole-panel based LED backlight system for a panel. A reference value is compared to a detection result of the light sensor for generating a color component calibration parameter, so as to compensate luminance and chrominance of light emitted from the LED sets and lightening the panel.
Abstract:
An optical sensing module is adapted to be assembled to a frame of a display device. The display device comprises a display module and the frame, and the display module has a display area and the frame surrounds the display area. The optical sensing module comprises a casing and an optical sensor. The casing is pivoted to the frame and the optical sensor is configured in the casing for sensing external light projecting on a side of the casing. The optical sensor is capable of sensing a brightness of the display area when the side of the casing faces the display area and sensing a brightness of an ambient light when the side of the casing doesn't face the display area.
Abstract:
In an automatic transportation apparatus of a measurement sensor unit for measuring a characteristic value of a video appliance, there is provided an automatic transportation apparatus of a characteristic value measurement sensor unit of a video appliance which comprises a driving force unit which has a driving motor engaged with a spur gear at one side of the same; a transportation unit which is installed at one side of the video appliance and allows the measurement sensor unit engaged to one side to be connected with the spur gear when measuring a characteristic value of the video appliance and to be positioned at the center of the screen of the video appliance and to return to its original position after the measurement is finished; and a controller unit which controls the driving force unit.
Abstract:
A color uniformity system for correcting color uniformity problems that exist with today's display devices. The inventive device includes a device to measure the color uniformity of the display device and software that uses the information from the measuring system to correct the color uniformity problem on the display device. Probe assembly has so many probes on it that is placed on the display and captures the color information on the display. Measuring assembly measures the color of the signal that comes from the probe assembly. Processor uses the color information from the measuring assembly and also communicates with the host system where the display device is driven from. Software resides on the host system and uses the stored color information to correct the color data that is applied to display device. Hardware unit that resides in the display device and performs color calculations if they are not done in the software.
Abstract:
A correction data acquisition method for an image display device, which is used to display a predetermined image using a plurality of primary colors. An offset image at a black level is displayed at an image display section of the image display device. A multiband offset captured data is acquired by capturing the offset image through filters corresponding to primary colors. Primary color images at predetermined signal levels of the corresponding primary colors are displayed sequentially. A multiband primary color captured data is acquired by capturing the primary color images through the filters for the corresponding primary colors. Primary color scale images are displayed by varying input signal levels of the corresponding primary colors sequentially. Primary color scale captured data is acquired by capturing the primary color scale images sequentially. Calculation is made of the offset correction data on the multiband offset captured data, the multiband primary color captured data and the primary color scale captured data, so as to acquire correction data relating to color shading in the image display device.
Abstract:
The present invention transforms a device-dependent color value in a device-dependent color space of a display device to a device-independent color value in a device-independent color space. A first color value is determined in a perceptually linear color space by applying a matrix model to the device-dependent color value, the matrix model applying a tone curve correction and a tristimulus matrix to the device-dependent color value. A difference value is then determined in the perceptually linear color space, wherein the difference value is determined by applying a difference model to the device-dependent color value, and wherein the difference model models deviation of the matrix model from actual measurements of the display device. Next, the difference value and the first color value are added and the sum is transformed to the device-independent color space. Because the first value based on the matrix model is added to a difference value which accounts for deviation of the matrix model, the present invention can account for the channel interdependency prevalent in DLP display devices.
Abstract:
A terminal device includes a communication section configured to communicate with a colorimeter including a colorimeter display section, and a processing section configured to perform display processing on a terminal display section, wherein the processing section performs determination processing as to whether to display a color of a color measurement result produced by the colorimeter both on the colorimeter display section and the terminal display section or display the color only on the terminal display section based on a distance from the colorimeter.