Abstract:
There is disclosed a calibrator configured to calibrate a color of a screen of a display device includes an absorption plate formed of a transformable material, comprising a bottom surface attached to the screen of the display device in a vacuum absorption method; a control portion configured to leave space a first portion of the absorption plate from the screen of the display device; a fixed portion configured to press a second portion of the absorption plate to the screen of the display closely; a rotary portion configured to rotatably coupled to the fixed portion in a horizontal direction and to move the control portion in a vertical direction of the display device, when it is rotated; and a circuit unit mounted in the fixed portion to calibrate the color of the display device, such that the calibrator may be fixed in a precise position of the screen and that the screen calibration can be performed precisely and that the calibrator can be attached even to a tilted screen and used widely.
Abstract:
The invention relates to a display device (100) comprising at least two display units (110; 210; 310; 410; 510; 611; 613;120; 220; 320; 420; 520; 612; 614) and an illumination device (130; 230; 330; 430; 530; 621; 622; 623; 624) for illuminating a transition area (202) between the at least two display units (110; 210; 310; 410; 510; 611; 613,120; 220; 320; 420; 520; 612; 614). The invention also relates to a method for operating said type of display device (100) and to an entertainment machine (500) comprising said type of display device (100). According to the invention, said display device comprises, in addition to the at least two display units (110; 210; 310; 410; 510; 611; 613; 120; 220; 320; 420; 520; 612; 614) and the illumination device (130; 230; 330; 430; 530; 621; 622; 623; 624), at least one determination device (141; 241; 441; 443; 444; 631; 641; 651; 661) for determining a first colour information from an image block (111; 112; 113; 114; 115; 116; 411) of a first of the at least two display units (110; 210; 310; 410; 510; 611; 613) and for determining a second colour information from an image block (121; 122; 123; 124; 125; 126; 421) of a second of the at least two display units (120; 220; 320; 420; 520; 612; 614), and to also a colour control device (142; 242; 442; 632; 642; 652; 662) for controlling the colour and/or the colour spectrum of the light emitted by the illumination device (130; 230; 330; 430; 530; 621, 622, 623, 624) in accordance with the first and the second colour information.
Abstract:
There is disclosed a calibrator configured to calibrate a color of a screen of a display device includes an absorption plate formed of a transformable material, comprising a bottom surface attached to the screen of the display device in a vacuum absorption method; a control portion configured to leave space a first portion of the absorption plate from the screen of the display device; a fixed portion configured to press a second portion of the absorption plate to the screen of the display closely; a rotary portion configured to rotatably coupled to the fixed portion in a horizontal direction and to move the control portion in a vertical direction of the display device, when it is rotated; and a circuit unit mounted in the fixed portion to calibrate the color of the display device, such that the calibrator may be fixed in a precise position of the screen and that the screen calibration can be performed precisely and that the calibrator can be attached even to a tilted screen and used widely.
Abstract:
The invention relates to a method for two-dimensional, spatially resolved measurement of tristimulus values of light emitted from a plurality of positions on a sample. It is an object of the invention to provide an improved method and system for spatially resolved chromaticity and luminance measurement in a standardized color space for display testing. The method of the invention comprises the steps of: - directing a first portion of the light to an RGB camera which produces a two-dimensional map of RGB color values; - transforming the RGB color values into first tristimulus values to produce a map of tristimulus values; - directing a second portion of the light to a colorimeter which produces second tristimulus values; - deriving a tristimulus correction by comparing the second tristimulus values with at least a subset of the first tristimulus values; and - applying the tristimulus correction to the first tristimulus values to produce a corrected map of tristimulus values. Moreover, the invention relates to an imaging colorimeter system capable of two-dimensional, spatially resolved measurement of tristimulus values of light emitted from a plurality of positions on a sample.
Abstract:
A calibration system and a calibration method for a multi-display system are disclosed. Test patterns displayed on each screen of the multi-display system are captured by a handheld device. One of the captured images corresponding to a specific display is designated as a standard image such that the handheld device can compare the other captured images corresponding to the other displays with the standard image to determine at least one adjustment parameter for each display. The images output to each display can be adjusted according to the adjustment parameter so as to eliminate the display differences between the images.
Abstract:
A display device, a mobile device, a system including the same, and an image quality matching method thereof are provided. According to the method, the mobile device acquires a first acquired image that is an image of a first displayed image being displayed on the first display device and a second acquired image that is an image of a second displayed image being displayed on the second display device, compares the first acquired image and the second acquired image with each other, determines an image quality correction value for the first display device so that an image quality of the first displayed image is made substantially equal to an image quality of the second displayed image, and transmits the determined image quality correction value to the first display device or the second display device.
Abstract:
This specification describes various embodiments that relate to methods for providing a wideband colorimeter that can include more accurate outputs. In one embodiment, a narrowband instrument, such as a spectrometer or spectrograph, can be used for calibration of a wideband colorimeter, so that more accurate outputs can be provided. In one embodiment, an optical test equipment, which consists of both a wideband colorimeter and a narrowband spectrograph, can be used for providing a more accurately calibrated wideband colorimeter. As an example, a spectra-camera, which is a hybrid system consisting of both a wideband colorimeter and a narrowband spectrograph, can be used for simultaneous testing by both the wideband colorimeter and the narrowband spectrograph. By doing simultaneous testing, accurate calibration of the wideband colorimeter can be achieved. This specification further describes a mathematical model to characterize a wideband three channel colorimeter with a narrowband multiple channel spectrometer.
Abstract:
The invention concerns a projector that includes a plurality of laser light sources that emit laser lights of mutually differing colors, a combiner that combines the laser lights, a laser light scanner that projects an image onto a projection surface by scanning the laser lights combined by the combiner, a laser light detection unit, and a controller. The laser light detection unit further includes a first laser light detector and a second laser light detector. The controller calculates an amount of change in an optical axis of the laser lights based on a displacement of the irradiation position of the first diffracted light, calculates an amount of change in a wavelength of the laser lights based on the amount of change in the optical axis and a displacement of the irradiation position of the second diffracted light, and adjust an output ratio.
Abstract:
There are provided a display light measurement method which can measure color representation of a various types of display devices regardless of the specification of the display device; a computer program, and a measurement system. A measurement device (1) connected to an optical sensor (2) can communicate with a target display device (information terminal (3)) to be measured. The measurement device (1) transmits content including a color patch to the display device to cause the display device to display the content and performs a measurement on the displayed content using the optical sensor (2). To perform measurements on many color patches, the measurement device (1) repeats the following: when a measurement on one color patch being displayed is complete, the measurement device 1 transmits content including another color patch to the display device to cause the display device to display the content and performs a measurement on the content being displayed.