The design and implementation of a low-cost 360-degree color LED display system

Liu, Shih-Mim; Chen, Ching-Feng; Chou, Kuang-Chung

doi:10.1109/tce.2011.5955158

Cited by 23 publications

(12 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Driven by the rapid development of III-V compound semiconductor technologies in recent years, inorganic light emitting diodes (LEDs) with superior energy efficiency and reliability have been widely employed for illumination, signaling and display [1]. In particular, micro-LED (µLED) displays [2,3] have drawn a lot of attention due to their unique advantages in portable applications and other potential areas such as multisite excitation, cell manipulation and lithography.…”

Section: Introductionmentioning

confidence: 99%

66‐3: Micro‐LED Display with Simultaneous Visible Light Communication Function

Cho

Hussain

et al. 2018

Symp Digest of Tech Papers

View full text Add to dashboard Cite

The first real-time micro-LED (µLED) display with simultaneous visible light communication (VLC) function for text message broadcast based on a 400×240 blue µLED array is presented, demonstrating the great potential of enabling various displays using VLC technologies for futuristic IoT applications. Transmitted messages are detected and shown on an LCD.Author Keywords micro-LED display, smart display, visible light communication (VLC), text message broadcast, Internet of Things (IoT).

show abstract

Section: Introductionmentioning

confidence: 99%

66‐3: Micro‐LED Display with Simultaneous Visible Light Communication Function

Cho

Hussain

et al. 2018

Symp Digest of Tech Papers

View full text Add to dashboard Cite

show abstract

“…Furthermore, to vary the brightness of an LED lamp and satisfy many consumers' demands, a wide range of studies for power converters with the function of dimming control have been carried out [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

The Dimmable Single-stage Asymmetrical LLC Resonant LED Driver with Low Voltage Stress Across Switching Devices

Kim¹,

Kim²,

Kim³

et al. 2015

Journal of Electrical Engineering and Technology

View full text Add to dashboard Cite

-In the LED lighting industry, the dimming function in the LED lamp is required by demands of many consumers. To drive this LED lighting, various types of power converters have been applied. Among them, an LLC resonant converter could be applied for high power LED lighting because of its high efficiency and high power density, etc. The function of power factor correction (PFC) might be added to it. In this paper, a dimmable single-stage asymmetrical LLC resonant converter is proposed. The proposed converter performs both input-current harmonics reduction and PFC using the discontinuous conduction mode (DCM). Also, the lower voltage stress across switching devices as well as the zero voltage switching (ZVS) in switching devices is realized by the proposed topology. It can reduce cost and has high efficiency of the driver. In addition, the regulation of the output power by variable switching frequency can vary the brightness of a light. In the proposed converter, one of the attractive advantages doesn't need any extra control circuits for the dimming function. To verify the performance of the proposed converter, simulation and experimental results from a 300W prototype are provided.

show abstract

“…LED display is a kind of display screen composed of LED array device and used to display text, graphics and text and other information, and television, a video signal by a certain control method [1,2] . LED display has a wide range of types and can be used in many occasions.…”

Section: Introductionmentioning

confidence: 99%

Full-color LED display research based on chip on board(COB) package

2014

2014 15th International Conference on Electronic Packaging Technology

View full text Add to dashboard Cite

LED display industry has entered an integrated period with the characteristics of more mature technology of every aspect and higher demand for the quality of LED display. LED display are developing in the direction of the high resolution, high density, small pixel pitch, intelligent. So the demand for the LED display screen manufacturing technology, especially the LED display module package is higher and higher, the pixel pitch of current LED display are below 2.5 mm(P2.5), some can reach P2, P1.5, P1.0 and even less. However, the current LED display with high definition and small pixel pitch used reflow soldering to mount surface mounted device three-in-one onto the printed circuit board. It's mature and widely used to manufacture LED display by this way, but there are many problems by using these discrete LED components to manufacture the LED display of high density, such as the poor reliability, the bad yield and the heat dissipation problem. Described in this paper, a new integrated packaging method called COB package--mounting the LED chips directly to the module substrate, and then doing the whole molding, will reduce the process and manufacturing cost greatly, improve the reliability and show better picture quality. COB packaging method will be a trend of LED display package in the future.

show abstract

The design and implementation of a low-cost 360-degree color LED display system

Cited by 23 publications

References 10 publications

66‐3: Micro‐LED Display with Simultaneous Visible Light Communication Function

66‐3: Micro‐LED Display with Simultaneous Visible Light Communication Function

The Dimmable Single-stage Asymmetrical LLC Resonant LED Driver with Low Voltage Stress Across Switching Devices

Full-color LED display research based on chip on board(COB) package

Contact Info

Product

Resources

About