Static LED display screen of monoboard circuit structure
A technology of LED display screen and circuit structure, applied in static indicators, instruments, identification devices, etc., can solve the problems affecting the overall quality of the display screen, increase the size of the display screen, and cannot be repaired, so as to eliminate the hidden danger of contact. , the mechanical structure is flat, and the effect of improving the reliability of the connection and contact
Inactive Publication Date: 2009-02-11
天津市数通科技有限公司
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] 1. Double-board superposition structure, if plugged in, it is easy to loosen and the reliability is not high; if it is welded dead, it is almost impossible to repair
[0005] 2. Double-plate superposition structure, when thermal expansion and cold contraction, it is not easy to keep each other flat; it is easy to produce mechanical deformation, forming a mechanical mosaic
[0006] Therefore, the display screen with this type of structure not only increases in size, but also seriously affects the improvement of the overall quality of the display screen.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0048] Below in conjunction with the accompanying drawings and preferred embodiments, the specific implementation, structure and features provided by the present invention are described in detail as follows:
[0049] First, see Figure 1- image 3 , the existing LED display screen is a double-board circuit board, and its structure includes a LED display unit module frame 1-1, a fixing hole 1-2 between the circuit board and the frame, and a filter capacitor 1-3 on the circuit board , drive circuit board 1-4 for driving LED display, interface chips 1-5 on the drive circuit board, double-row copper pillars 1-6 connected between two-layer circuit boards, card points 1-7 on double-row copper pillars , to prevent non-parallel connection, signal connection interface 1-8 between LED display unit modules, power supply interface 1-9, lamp holder board 1-10 in LED display unit module, LED lamp holder 1-11, circuit board filter capacitor 1-12, LED driver chip 1-13. Since the control circ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A high density static LED display screen of single board circuit structure consists of LED display screen body and control circuit board set in external frame. It is featured as applying single board structure as said control circuit board and forming said single-board control circuit board by four layers of top and bottom control circuit wring layers and two sandwich layers of power supply wiring and grounding-wiring so as to provide independent power supply layer circuit to power supply for ensuring stable and reliable power supply on driving chip.
Description
technical field [0001] The invention relates to an LED display screen, in particular to a static LED display screen with a single-board circuit structure with an outdoor dot pitch of 10 mm to 16 mm. Background technique [0002] At present, the popular LED display screens on the market with a dot pitch of less than 16mm (monochrome, multi-color text screens, pseudo-color screens, full-color screens) can not be laid out due to the large number of devices in both the scanning mode and the static mode. Some designs are all double-board structure; one is installed with LED lamp head (mainly used for outdoor with high brightness, and mainly used for indoor with low brightness), and one is installed with LED display drive circuit. The two-board structure is superimposed by connecting pins to form a display unit. [0003] The display screen formed by the double board structure has the following disadvantages: [0004] 1. The double-plate superposition structure, if plugged in, is...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G09F9/33G09G3/00
Inventor 丛严修刘志勇
Owner 天津市数通科技有限公司