SMD, COB, and GOB are the packaging technologies for LED. This article was written by Tony Tong of Huasuny, and first published in linkedin. 1. What is SMD LED? SMD is short for Surface-Mounted Device. SMD LEDs are a type of LED technology where the LED chips are mounted directly onto a printed circuit board (PCB). The design of an SMD LED typically consists of three primary components: the LED chip, a phosphor coating, and a small reflective cavity. 2. What is COB LED? COB is short for Chip-on-Board. This type of LED technology involves mounting multiple LED chips directly onto a single substrate, creating a unified light-emitting surface. 3. What is GOB LED? GOB is short for Glue-On-Board. GOB LEDs are a type of LED technology that uses transparent glue to cover the entire surface of the SMD LED display modules. GOB is an upgraded version of SMD. ROUND 1: Reliability 1. Artificial knocks and collisions: In actual applications, it is difficult for the screen to avoid external force collisions during transportation and handling, so anti-collision performance has always been a major consideration for manufacturers. As high-protection display module technology, the protection level of COB and I also varies. COB directly solders the chip to the circuit board and then fills it with glue in one piece; while I first encapsulate the chip in the lamp bead, then solder it to the circuit board, and finally fill it with glue in one piece. Compared with COB, there is an extra layer of packaging protection, and the anti-collision ability is better. 2. External forces of the natural environment: Using epoxy resin with ultra-high transparency and super thermal conductivity as the glue-filling material, I can achieve true moisture-proof, salt spray-proof, and dust-proof to be suitable for more harsh environments. ROUND 2: Display effect COB has risks in separating wavelengths and colors and picking up chips on the board, making it difficult to obtain perfect color uniformity for the entire display. Before I perform special gluing, I will manufacture and test the module in the traditional way consistent with ordinary modules, avoiding color difference, moiré, and other defects in light and color separation and obtaining good color uniformity. We regard a single LED pixel/module as a rose. ROUND 3: Cost Theoretically, the manufacturing cost will be lower because the material composition process is less and the required materials are less. However, since COB adopts whole-board packaging, it must be passed once in production to ensure that there are no bad pixels before packaging; the smaller the point spacing and the higher the precision, the lower the product yield. It is understood that the current COB normal product shipment rate is less than 70%, which means that the overall manufacturing cost will also have to share an increase of about 30% of hidden costs, and the actual expenditure is much higher than expected. As an extension of SMD technology, I can i...

We had a huge sucess in infocomm 2024 which held at Las Vegas Concention center June 12-14. We broght our newly developed rotating led poster that linked to display together which attracted a lot of attentions. Our newly develop rental use flexible transparent led display give the customer another choice when selecting the transparent led display. Not only does our display IP65 rated, offers 4500nit brightness, but also it is very easy to splicing into different shape. In our booth, we easily spliced a wave shape screen. which attracts many customer Our newly develop raptor, also give customer a new concept of building a curve led display. Different from the traditional flexible led display that we need to change the curving angle manually. with our Raptor, we can change the curving angle using electric pluse. which make the angle more precise, and also make the installation process more easy and elegant.

Huasuny welcome and wait for you at Hall 4,Booth 4H240 Barcelona,Spain ISE 2024, one of the largest AV systems integration show in the world! Join us and experience the video wall solution at Hall 4, Booth 4H240 We will introduce the fourth generation flexible LED display- Travi, upgraded moving head LED display Y-Rover, and new arrival- Raptor,which can be used in multiple environments and a various of scenarios . We will be pleased to present our valuable customers and business partners the newest LED display solutions， come and visit us at ISE 2024, from 30 Jan to 2 Feb 2024 in Barcelona, Grab Via！

June 20, 2023 Huasuny lauched our innovative technology Travi Series for outdoor rental applications. Travi is Huasuny's 4th generation flexible LED display, with the feature of light weight, thin,and high transparency. The Travi series will be available for multiple sizes 1250mm x 500mm, 1500mmx500mm, 2500mmx500mm etc, it has brightness of 4000nits, 3840Hz refresh rate and IP65. Pixel pitch avaliable: 6.9mm, 8.9mm, 10.4mm and 12.5mm.

We are excited for our latest technology--Indoor fixed LED panel Jade Series. The indoor fixed LED display is such a display that it is immovable, fastened. And it fixed at a particular place in such a position that it cannot move on its own. These LED displays are also a great source of advertisement using indoor as well as outdoor applications Pixel pitches avaliable: 1.9mm, 2mm, 2.6mm, 3.9mm Panel sizes: 1000mm x 500mm, 750mm x 500mm, 500mmx500mm, 250mm x 500mm, sizes can be customized. Main features: light weight and easy to set up. More details coming soon...