Optical characteristics of LGP depending on the scattering pattern orientation for flat-type LED lighting

Park, Sohee; Shin, Yongjin; Oh, Kwang-Hwan; Bang, Tae-Hwan

doi:10.1007/s10043-016-0193-y

Cited by 8 publications

(6 citation statements)

References 10 publications

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“…Due to the directional nature of light, its path can be accurately estimated using ray tracing calculations. Ray-tracing software, such as LightTools and Tracepro [ 24 – 26 ] has been developed to assist designers in addressing more complex challenges. One of the most advanced methods in optical design is freeform design.…”

Section: Methodsmentioning

confidence: 99%

Advancing LED technology: the FDCSP element’s breakthrough in mini and micro-LED packaging and backlight module enhancement

Chen,

Huang,

Lee

et al. 2024

Discover Nano

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In this research, we introduce an advanced methodology for the calculation of bulk light sources tailored for free-form surface design, focusing on the principle of energy conservation. This method is especially relevant for the evolving needs of micro-LED packaging, highlighting its potential in this burgeoning field. Our work includes the development of an algorithm for creating freeform-designed chip-scale package (FDCSP) components. These components seamlessly integrate LEDs and lenses, underscoring our commitment to advancing free-form surface design in chip-level packaging. By adhering to the principle of energy conservation, our approach facilitates a meticulous comparison of simulation outcomes with predefined target functions. This enables the iterative correction of discrepancies, employing layering techniques to refine the design until the simulated results closely align with our goals, as demonstrated by an appropriate difference curve. The practical application of these simulations leads to the innovative design of FDCSP devices. Notably, these devices are not just suitable for traditional applications in backlight modules but are explicitly optimized for the emerging sector of micro-LED packaging. Our successful demonstration of these FDCSP devices within backlight modules represents a significant achievement. It underscores the effectiveness of our design strategy and its expansive potential to transform micro-LED packaging solutions. This research not only contributes to the theoretical understanding of energy conservation in lighting design but also paves the way for groundbreaking applications in micro-LED and backlight module technologies.

show abstract

Section: Methodsmentioning

confidence: 99%

Advancing LED technology: the FDCSP element’s breakthrough in mini and micro-LED packaging and backlight module enhancement

Chen,

Huang,

Lee

et al. 2024

Discover Nano

View full text Add to dashboard Cite

show abstract

“…Due to the directional nature of light, its path can be accurately estimated using ray tracing calculations. Raytracing software, such as LightTools and Tracepro [18][19][20] has been developed to assist designers in addressing more complex challenges. One of the most advanced methods in optical design is freeform design.…”

Section: Traditional Methodologymentioning

confidence: 99%

Advancing LED Technology: The FDCSP Element's Breakthrough in Mini and Micro-LED Packaging and Backlight Module Enhancement

Chen,

Huang,

Lee

et al. 2024

Preprint

View full text Add to dashboard Cite

In this research, we introduce an advanced methodology for the calculation of bulk light sources tailored for free-form surface design, focusing on the principle of energy conservation. This method is especially relevant for the evolving needs of micro-LED packaging, highlighting its potential in this burgeoning field. Our work includes the development of an algorithm for creating Freeform-Designed Chip-Scale Package (FDCSP) components. These components seamlessly integrate LEDs and lenses, underscoring our commitment to advancing free-form surface design in chip-level packaging. By adhering to the principle of energy conservation, our approach facilitates a meticulous comparison of simulation outcomes with predefined target functions. This enables the iterative correction of discrepancies, employing layering techniques to refine the design until the simulated results closely align with our goals, as demonstrated by an appropriate difference curve. The practical application of these simulations leads to the innovative design of FDCSP devices. Notably, these devices are not just suitable for traditional applications in backlight modules but are explicitly optimized for the emerging sector of micro-LED packaging. Our successful demonstration of these FDCSP devices within backlight modules represents a significant achievement. It underscores the effectiveness of our design strategy and its expansive potential to transform micro-LED packaging solutions. This research not only contributes to the theoretical understanding of energy conservation in lighting design but also paves the way for groundbreaking applications in micro-LED and backlight module technologies.

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“…Therefore, adopting an optimal pattern to improve the optical efficiency characteristics of the LGP of a device is an important design measure. Based on the results of previous studies, 21 – 26 , 29 the V-groove pattern size used in the simulation was designed to have a width and depth of 0.5 mm. This was similar to the ratio of the pattern size processed in the LPG using an actual laser, i.e., 504×545 μm (width × depth).…”

Section: Flat-type Lighting Device Implementationmentioning

confidence: 99%

“…Prior research has revealed that adjusting the processing variables of the geometric patterns and location of the light source of flat-type lighting devices play decisive roles in improving their illuminance uniformity. 23,25,29 However, adjusting the depth of some patterns to satisfy the uniformity by sufficiently transmitting the light emitted from the center of LEDs can damage the light guide plate (LGP), and the process is difficult to simplify. In addition, if the LED output is increased to prevent dark parts at the corners and center, the illuminance distribution becomes uneven, and hotspot generation in the light-incident part cannot be avoided.…”

Section: Introductionmentioning

confidence: 99%

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Optical characteristics of LGP depending on the scattering pattern orientation for flat-type LED lighting

Cited by 8 publications

References 10 publications

Advancing LED technology: the FDCSP element’s breakthrough in mini and micro-LED packaging and backlight module enhancement

Advancing LED technology: the FDCSP element’s breakthrough in mini and micro-LED packaging and backlight module enhancement

Advancing LED Technology: The FDCSP Element's Breakthrough in Mini and Micro-LED Packaging and Backlight Module Enhancement

Study on light guide plate design technology for improving optical efficiency of flat-type lighting device

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