Key Technology Image Capture: The image display on the LED screen in the conference room is the result of image conversion using an electronic luminescent system for digital signals. The JMC-LED dedicated graphics card was developed accordingly. Based on the PCI bus, it employs a 64-bit graphics accelerator to achieve unified compatibility for both VGA and video functions, allowing video data to overlay VGA data, thereby improving compatibility. Utilizing full-screen resolution capture methods, it can achieve full-angle resolution for video images, enhancing resolution effects, addressing edge blurring issues, and allowing for real-time zooming and arbitrary movement of images. It can promptly respond to different playback requirements. It effectively separates red, green, and blue, enhancing the true-color imaging effect of electronic displays.
Real-color reproduction typically requires a light sensitivity ratio of 3:6:1 for the combination of red, green, and blue; red imaging is more sensitive, thus requiring even distribution in spatial display. Due to the differing light intensities of the three colors, the resolution of the non-linear curves perceived by the human visual system varies, so we benefit from white light with different light intensities to correct the internal light of the TV. Color discrimination varies due to individual and environmental differences, and color reproduction should be based on certain objective criteria, such as: the basic wavelengths of 660NM red light, 525NM green light, and 470NM blue light. Match with 4-tube or more white light units based on the actual light intensity. The grayscale has 256 levels. Non-linear calibration is required for the LED display pixels in the conference room. Control the three primary color tubes through the hardware system and the playback system software.
The Brightness Control D/T Converter is designed to control pixel illumination, making it a standalone driver. When displaying colored video, it is necessary to effectively control each pixel's brightness and color to ensure that the scanning operation is completed synchronously within the specified time. However, with thousands of pixel points in large conference room LED displays, this control becomes complex and data transmission is difficult. Nonetheless, using D/A control for each pixel is impractical in real-world applications, necessitating a new control strategy to meet the complex requirements of the pixel system. Based on the analysis of visual principles, the pixel's light-to-dark ratio is the primary basis for people to analyze average brightness, and effectively adjusting this ratio can achieve effective control of pixel brightness. When this principle is applied to conference room LED displays, it can convert digital signals into time signals, realizing an effective D/A conversion.
Data reconstruction and storage currently employ commonly used memory combination methods such as pixel interleaving and bit interleaving. The middle bit plane method offers more significant advantages, effectively enhancing the optimal display quality of conference room LED screens. Subsequently, the bit plane data is circuit reconstructed into RGB data, organically combining different pixels under the same weighting, and utilizing adjacent storage structures for data storage.
The application of ISP in logic circuit design has brought about new effects with the advent of system programmable technology. Users can repeatedly repair deficiencies in their designs, creating their targeted systems or circuit boards, and integrating software functionalities to meet their design needs. The combination of digital systems with system programmable technology at this point introduces new applications. The introduction and use of this new technology can effectively shorten design time, extend the limited use of components, simplify on-site maintenance, and facilitate the realization of target equipment functionalities.
