36‐1: Invited Paper: The Revolution in Solid State Light Sources in Projection

Abstract

Solid-state light sources have multiple advantages over lamps for projection applications. Multiple solid-state technologies are used, including RGB LED, RGB laser, laser/LED hybrid or laser-phosphor light sources.This paper explores the advantages, disadvantages and future prospects of these lamp and solid-state light source technologies in projection applications.

A highly stable CsPbBr3–SiO2glass ceramic film sintered on a sapphire plate for laser-driven projection displays

“…1,2 Among the components of a projection system, the lighting source is an essential unit in determining its performance. Currently, laser-driven lighting sources [3][4][5][6] are gradually replacing traditional xenon lamps [7][8][9] and light-emitting diodes (LEDs) [10][11][12][13] in projection applications as a result of their outstanding merits, such as high input current density, low e ´tendue value, and wide color gamut. Direct laser projection displays, which are known as RGB laser-based projectors, are regarded as ideal technology that can achieve the largest possible color gamut.…”

Atomic diffusion bonding using oxide underlayers for optical applications

“…In recent years, the power and wall-plug efficiency performance of blue laser diodes have improved. 1) Consequently, high-brightness liquid crystal on silicon (LCOS) projector products equipped with laser light sources are used 2) increasingly for digital cinema, projection mapping, and simulation. Such LCOS systems usually use a polarizing beam splitter (PBS) for RGB channels.…”

56‐4: High‐Heat‐Resistant Nano/Micro‐Structured Optical Elements Fabricated by Sol‐Gel Imprinting

“…Solid-state light sources are steadily replacing conventional discharge lamps in high-lumen projectors. Solid-state light sources offer several advantages, including lower environmental impact due to reduced use of heavy metals, and a smaller optical system footprint due to the very low étendue of laser light sources, which can be coupled with smaller micro-displays including LCOS (liquid crystal on silicon) panels and DLP (digital light processing) devices [1]. This shift toward solid-state light sources is driving increased demand for high-heat-resistant optical elements.…”