[Senior Engineer Annual Meetin∞☆×Ωg] SOURCE LEADER Chen Haojie: The "&♣;Upgrade" of LED Display Power S>¥×☆upply

"The future development÷÷≥ direction of LED display pow₹Ω er supplies must be towards high PF v ™alues, high efficien™₹>cy, multiple input and ¶​™§output protection, and EMC stan↔λ≠←dards." SOURCE LEADER Sales Director Ch♠§♣en Haojie believes that the δ☆ size of display powe÷β↑∑r supplies will become smaller, po§∑βwer density will increase, and re∑♦liability will continue t$♣↔o improve.

From December 14 to 15, the "20→♠∞20 High Engineer LED Annu><↑•al Meeting" themed "Displ✘•ay on Both Sides, Lighting in All D≤&"irections" was grandly☆✘  held at the Hyatt Hotel¶α& near Shenzhen Airport,©♣ sponsored by Zhaoyuan OptoelΩλ'ectronics.

As an annual event in the LED indus™☆∞try, this year's annual meet↔σing received strong support fπ♣→σrom over 40 units in the LED industry β↕€chain and flat panel display, with nea¥&×♠rly 1,000 industry prof±∑essionals registering to attend, creat±γ‌ing a bustling scene.

At the display products and ap¥φ βplications session sponsor"£ed by Lehman Optoelectron§≤¶ics, SOURCE LEADER Salδ¥es Director Chen Haojie delivered a ke®≠ynote speech on "New Trends in Lγ ED Display Power Supply D€₹ evelopment." According to ₽÷Chen Haojie, although power® ≠® supplies account for only 3%-5% of th↓βe cost of displays, as ₽λ≈↔the "heart" of LED displays≤₩≤, their reliability requirements a≠÷©re very high to ensure stable ope♦'¶♥ration.

SOURCE LEADER Sales Director Chen H↓§aojie

In recent years, with t♠≈∏he gradual maturity of LEDεφαπ display technology and the rapid decli&♣↑ne in costs, LED displayγ₩±s, especially small-pitc∏∑h displays, have maintaβ< <ined a high-speed growth ≠ ™πtrend. The market size§ ★✘ of display power supplie €s has also grown vigo™><₽rously.

Chen Haojie believes that altho‌¥♠₩ugh the LED display market sizγ→e declined in 2020 due to the pan'¶λdemic, as the market gradually recov®β∏¶ers, the power supply market wπ€ill also experience rapid gβ&✘ rowth along with theσ✘​σ overall development of displ≈←ays.

"Currently, the focus o←αf display power suppli‌✘es is on reliability + co‌σ☆"st-effectiveness." Chen Haojie s&∏∞tated that reliability and cost-effeφ₽ctiveness are mainly assessed bas ‍≥&ed on several technical par ♦<£ameters such as power↑  factor, efficiency, input protect®←​ion, output protection, size, and ★σEMC.

Different applications hav←♣λe different requiremΩ☆ents for power supplies.

According to Chen Haojie, the internaε✘☆♦l power supply of die✘α∏‍-cast aluminum enclosures iφ₹&s efficient and has high♥α power density, which plac★↔♠es relatively high demands & on components such ‍↓as MOSFETs and electrolytic↓ ↕​ capacitors inside the power sup&™ply.

Transparent screen pr​®oducts require power supplie'↕s to be made into narrow strips; the na≤₽rrower the power supply, the better t♥↔he light transmittance of the screen✔↓₹, making the entire ♥&βεscreen more aesthetically pleas¥≥€€ing.

"Outdoor screen products have hi'§λ&gh maintenance costs and require higher$₩φ reliability and longer life&α←λspan for power supplies." Chen≠↓ Haojie stated that w‍®ith technological advancements, v≈λarious countries and regions hav ©♥→e established relevan↕Ω✔t industry standards, which are r↕€§←eflected in certification requirements✔$∑&: China requires CCC, E ≥∞πurope requires CE anε≠d TUV, and the United States requi↔↓$σres UL. These certification&©↔s impose higher requiremeλ₹&§nts on the technical specific×↑÷>ations of power supplies.

At the end of the speech, Chen Haojie sδ'tated that the application of ↓δ® new technologies and n↔≠‌©ew materials is driving the‌÷ development of switch pow<׶∞er supply technology for displays¥$φ, such as synchronous rec♠↔"tification technology© , magnetic integration techn§→↓₽ology, and the application ↔" of silicon carbide and gal∏₩lium nitride material$☆s.

The 2020 High Engineerλ¥Ω LED Annual Meeting, sponsσ <©ored by Zhaoyuan Optoel<₽ectronics, lasted for two days, witλδ h representatives fr↕​×om over 30 companies d≥→elivering wonderful keynote speeches₹®®$ on hot topics such as Mini/Mi​π®cro LED, UV LED, small-pitch LED♣↑♥ , smart lighting, and♦​π health lighting. For more infε©ormation on the 2020 High Engineer ≥✘δ LED Annual Meeting, ple₽‍ase follow up on the subsequent re♥βports from High Engineer New Display!§♦↓