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Point-to-point brightness control system and a method

A brightness adjustment, point-by-point technology, applied in cathode ray tube indicators, instruments, static indicators, etc., can solve the problems of low work efficiency, complex system, low precision, etc., and achieve obvious homogenization effect and high adjustment accuracy. , the effect of accurate data

Active Publication Date: 2013-09-25
ZHEJIANG CHUANGJIE PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, each point needs to be valued one by one, the operation is cumbersome, the system is complicated, the time is too long, the manual operation is too much, the precision is low, and the work efficiency is low.

Method used

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  • Point-to-point brightness control system and a method
  • Point-to-point brightness control system and a method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 As shown, this embodiment provides a point-by-point brightness adjustment system, and the point-by-point brightness adjustment system includes a processing device.

[0029] Wherein, the processing device analyzes the consistency of the performance parameters of each LED light-emitting diode in the external display device to obtain the target brightness range, and the processing device generates adjustment data according to the target brightness range, and sends For the display device, after receiving the adjustment data, the display device adjusts each LED light-emitting diode according to the adjustment data, so that the brightness of each LED light-emitting diode is adjusted within a target brightness range.

[0030] For example, the processing device may be a common computer, a single-chip microcomputer, an FPGA, and the like. In addition, the display device is an LED display device, such as an LED display, or an LED display module, or an LED displa...

Embodiment 2

[0042] Such as figure 2 As shown, on the basis of the above examples, this embodiment provides a point-by-point brightness adjustment system, the point-by-point brightness adjustment system includes a processing device; or this embodiment provides a point-by-point brightness adjustment system, the The point-by-point brightness adjustment system includes a processing device and a display device.

[0043] In this embodiment, at least one identification unit is also provided on the display device, and the identification unit can be a paper label or a plastic label; in addition, the identification unit can also be a The designed barcode is pasted or embedded on the display device.

[0044] The identification unit is used to identify the performance parameters of each LED light-emitting diode, for example, the performance parameters include the wavelength range and brightness range of each color LED light-emitting diode. For example, each LED display module or an LED display box...

Embodiment 3

[0051] Such as image 3 As shown, on the basis of the above examples, this embodiment provides a point-by-point brightness adjustment system, the point-by-point brightness adjustment system includes a processing device; or this embodiment provides a point-by-point brightness adjustment system, the The point-by-point brightness adjustment system includes a processing device and a display device.

[0052] In this embodiment, the point-by-point brightness adjustment system further includes a storage device; the storage device is connected to the processing device.

[0053] After the processing device generates the adjustment data, it sends the adjustment data to the storage device; the storage device stores the adjustment data, and when an external display device needs to be adjusted, it can be used from the storage device The device calls out the adjustment data and sends it to the display device, so as to realize the brightness adjustment of each LED light-emitting diode of th...

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Abstract

The invention discloses a point-to-point brightness control system and a method; wherein, the point-to-point brightness control system comprises a processing unit; the processing unit analyzes performance parameter consistency and obtain subject brightness range according to the performance parameter of an external display device; adjustment data are generated according to the subject brightness range and are provided to the display device; wherein, the display device is an LED display device and the performance parameter is that of each LED in the display device. The point-to-point brightness control system can adjust the brightness and color as well as the lighting angle of each LED in the display device to ensure that the display device has uniform display and good display effects.

Description

technical field [0001] The invention relates to the technical field of image display correction, in particular to a point-by-point brightness adjustment system and a method for point-by-point brightness adjustment using the system. Background technique [0002] The LED display screen is composed of hundreds of thousands or even millions of semiconductor light-emitting diodes, namely: LED light points. Various factors such as different optical properties of the light points, component aging, drive error, inconsistency in the angle of the light point itself, dust on the light point, and shielding of the hat brim to protect the light point will cause uneven brightness of the light point on the screen. At present, the main ways to solve this uneven phenomenon: one is to improve the consistency of the optical characteristics of LED lights, and the other is to improve the uniformity of the display screen by means of correction. The consistent way to improve the optical characteri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/32G09G5/10
Inventor 商松
Owner ZHEJIANG CHUANGJIE PAPER
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