LED display screens will inevitably produce tails when they are sold. Tail goods are products of different batches, it is inevitable that the brightness will be different, and the display effect will not be good after assembly. In this case, this technology needs to be corrected point by point.
Eliminating the difference point by point is the technology to improve the uniformity and color fidelity of the LED electronic screen display. By collecting the data of each pixel of the LED display, a matrix of correction coefficients is given, which is fed back to the control system to realize the difference of pixels , And finally weakened brightness and color difference point correction can be connected to the tails of different batches, the screen display is pure and delicate, and the color is real and natural.
LED display
According to the application, the point-by-point correction system is divided into two types.
1. A single LED box is calibrated point by point, and it is calibrated box by box during production to ensure that each box has a uniform height after production.
2. On-site large-screen calibration point by point, full-color LED large-screen display, select the appropriate observation position for on-site calibration, to ensure that the display height is uniform at the observation position.
Correct chroma and brightness little by little.
1. Chromaticity correction refers to the light detector correction method with strong color recognition ability, which can accurately measure the brightness and chromaticity value of the LED display screen.
2. Brightness correction is the correction of LED luminous intensity. Some calibration equipment lacks good color recognition ability and cannot correctly measure the spectral difference. They can only measure the luminous intensity, but cannot correctly measure the chromaticity deviation.
When using different batches of LED screens with the same dominant wavelength, brightness and chromaticity corrections are required. This not only ensures that the overall brightness of the LED electronic display is consistent, but also the color display effect of the normal display. The tail end products generally have price advantages. By correcting this technology bit by bit, the tail ends of these different batches can perform normal functions, improve the use value of the LED display, and save customers' costs.
