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  • Hd Small Pixel Pitch Led Display Splicing Technology - China

    price: contact company for price

    1 - Regarding the application of the splicer in HD small pixel pitch LED display field, there are several key technologies worthy of attention:

    (1) Output synchronization of signals

    The multi-channel DVI signal output of the splicer has the synchronization problem of the signal.

    The unsynchronized signal is output to the LED display screen, which will occur tearing phenomenon at the splicing place and is especially noticeable when playing high-speed moving images.

    (2) graphics processing algorithm

    We know that the point-to-point image display is the best.

    After the image is reduced, if ordinary graphics processing technology or general-purpose FPGA graphics processing algorithm is used, the edges of the image will be jagged, and even pixels will be missing and the brightness will also reduce.

    High-end image processing chips or FPGA systems that utilize complex graphics processing algorithms will maximize the display effect for reduced images.

    (3) Non-standard resolution output

    The small pixel pitch LED display is made up of unit matrixes of display which have the same specification.

    The size of each display unit and physical resolution are fixed, but the entire large screen is not a standard physical resolution.

    In a very large-scale splicing system, the LED display area driven by each LED controller may not be the standard resolution.

    At this time, the output of the splicer with non-standard resolution is critical, which can help us quickly find the right splicing method, so as to allocate resources reasonably, effectively saves the quantity of LED controllers and transmission devices.

    2 - the current splicer can be divided into four categories, namely embedded pure hardware architecture, PCI-E bus architecture, distributed network architecture, hybrid architecture.

    (1) Embedded pure hardware architecture

    The structure of the pure hardware architecture splicer is relatively simple, and it is not easy to cause system failure; the acquisition board and the output board can be hot-swapped and easy to replace; the multi-channel and multi-format signal acquisition and processing can be realized; the back-board switching technology and the output board card unified clock technology ensures the synchronization of multiple signal outputs; the resolution of each DVI output signal can be customized to meet the splicing characteristics of the LED display.

    (2) PCI-E bus architecture

    Usually the bus architecture splicer uses PCI Express technology, and the available data bandwidth is up to hundreds of Gbps.

    The host is equipped with a high-performance CPU and large-capacity memory.

    It can be pre-installed with different operating systems (such as 64-bit Windows 7) depending on the application domain, and can run various applications directly.

    The splicer is equipped with multiple high-performance graphics output cards, each with an ultra-high internal bandwidth and video memory, and all output images are synchronized to eliminate image tearing between display units.

    It also has multiple input cards, supports multiple signal formats, and is capable of image processing of input signals.

    (3) Distributed network architecture

    The distributed network architecture splicer usually adopts a node-type hardware structure, and each input and output node is separately separated, and the data is transmitted through the twisted pair to access the central switch.

    The core is an advanced video codec technology that processes and encodes the collected DVI, VGA, YPbPr, CVBS, 3G-SDI signals through various signal input nodes.

    Afterwards, decoding subsequent video which is transmitted to the output node, through a dedicated network communication protocol, and converted to a DVI digital signal for output to the display terminal.

    (4) Hybrid architecture

    A hybrid architecture generally refers to a splicer or splicing system in which two or more of the above three splicing techniques are combined.


    Company Contact:


    • Phone: 86-75523591280

    • Address: Fl.6, Bld. 1, Deyongjia Industrial Park, Rd. Guangqiao, Guangming New Dist., SHENZHEN , China

    • Email: Email

    Published date: July 5, 2019

    • Business Description: Shenzhen HTJ Technology Co., LTD. is a LED transparent screen, LED creative screen such as: LED cylindrical screen, LED triangle shaped screen, LED curved screen, LED ball screen, other custom LWD display and other high-definition LED full color screen Professional LED display manufacturer integrating R&D, production, sales and service.

      The company is located near Shenzhen Baoan Airport, with a total area of 15,000 square meters, a production workshop of 10,000 square meters and an office area of 2,000 square meters.

      With large anti-static assembly line and SMD automatic surface mount equipment, wave soldering and other technical equipment, the company relies on advanced management mode, strong technical research and development capabilities and abundant raw material resources, and has carefully built a professional platform for modern enterprises.

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