Display characteristic curve correction method of medical LED display screen and control system thereof

A technology of LED display screen and characteristic curve, which is applied to static indicators, instruments, etc., and can solve problems such as difficulty in ensuring picture consistency, lower image display accuracy, and differences in color and brightness attenuation.

Active Publication Date: 2018-12-18
CHANGCHUN CEDAR ELECTRONICS TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, due to the limitation of technology, it is difficult for a single display to be more than 100 inches for medical liquid crystal displays; there are splicing gaps of 0.5-4mm in multiple liquid crystal display splicing units, which greatly reduces the display accuracy of images, and the color of each unit , There are differences in brightness attenuation, and it is difficult to guarantee the picture consistency after long-term use

Method used

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  • Display characteristic curve correction method of medical LED display screen and control system thereof
  • Display characteristic curve correction method of medical LED display screen and control system thereof
  • Display characteristic curve correction method of medical LED display screen and control system thereof

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Embodiment Construction

[0024] Such as figure 1 As shown, the medical LED display control system of the present invention includes a sending card, a receiving card and an adapter card; the sending card receives the 10bit medical image data sent by the PC, and packs it to the remote receiving card after buffering; the receiving card Intercept the image data that needs to be displayed for processing and display, and transmit the unnecessary image data to other receiving cards; the adapter card is connected to the receiving card, and the driving data is decomposed into multiple independent cable signals to drive the display module.

[0025] The sending card includes an HDMI interface, an image processing chip, a sending end main control chip, and a sending end Gigabit network output interface; the HDMI interface receives the 10bit medical image transmitted by the PC and processes it to obtain a TMDS signal (transition modulation differential signal ), the TMDS signal is converted into R, G, B grayscale ...

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Abstract

The invention relates to a display characteristic curve correction method of a medical LED display screen. The method comprises the following steps of receiving 10bit medical image gray scale data, determining a gray scale range to which the 10bit gray scale data of each pixel belong and searching a corection coefficient table according to a determining result, and obtaining a corresponding adjusting coefficient and a gamma coefficient; converting the 10bit gray scale data of each pixel by means of a gamma transforming formula (1) for obtaining the M bit gray scale data of each pixel; multiplying the M bit gray scale data of each pixel with J corresponding brightness correction coefficients in the correction coefficient table for obtaining the M bit driving data of each pixel, thereby driving the medical LED display screen perform displaying. The display characteristic curve correction method has advantages of obtaining LED display screen driving data which accord with a DICOM standard, realizing processing and displaying of medical image data, and satisfying a medical requirement.

Description

technical field [0001] The invention belongs to the technical field of LED display screens, and relates to a display characteristic curve correction method and a control system of a medical LED display screen. Background technique [0002] Medical imaging is the main symbol of the modernization of large hospitals, the most important clinical diagnostic method, a powerful means of medical research and an important means of treatment. At present, due to the limitation of technology, it is difficult for a single display to be more than 100 inches for medical liquid crystal displays; there are splicing gaps of 0.5-4mm in multiple liquid crystal display splicing units, which greatly reduces the display accuracy of images, and the color of each unit , There are differences in brightness attenuation, and it is difficult to guarantee the picture consistency after long-term use. With the continuous progress of LED chip manufacturing, integrated packaging, display control and process...

Claims

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Application Information

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IPC IPC(8): G09G3/32
CPCG09G3/32
Inventor 程宏斌尹景隆赵健博林韵鸣王瑞光
Owner CHANGCHUN CEDAR ELECTRONICS TECH CO LTD
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