Planar/Plate-Like Light Guides TRIZ Cases
- LCD Backlight LED Matrix Segmentation for Brightness Control
A liquid crystal display backlight uses segmented light guide blocks with variable LED counts to direct illumination toward the panel.
- TIR Lens Light Coupling for Rear View Turn Signals
An enclosed TIR lens transfers LED light intensity into a light guide, resolving the trade-off between legal illumination requirements and device complexity.
- Backlight Module Bottom-Installed Holder Design
A backlight module uses a removable holder inserted from below to simplify light source installation.
- Light-Guiding Plate Assembly for Backlight Uniformity
A segmented light-guiding plate assembly directs optical emission through distinct reflective and transmissive zones to control light distribution.
- Integrated Light-Guide Apparatus with Micro-Structures
Co-extrusion merges the light guide and reflector into one piece, eliminating air spacing that causes light loss up to 8 percent.
- Backlight Unit Optical Sheet Thermal Deformation Control
A backlight unit optical sheet uses a bottom frame holder to press and constrain the component against thermal expansion.
- Waveguide Coupling Using Top Mirror for Thin Illumination
A top mirror reflects light from a discrete LED into a waveguide, resolving the trade-off between thin profiles and high coupling efficiency.
- Exit Pupil Expanding Light Guide for Multi-Display AR
An exit pupil expanding light guide couples and expands light from multiple display arrangements toward a user.
- Light Guide Plate Cylindrical Hole for Uniform Illumination
A light guide plate with a cylindrical hole extracts unreflected light from the side surface, preventing bright spots and improving usage efficiency.
- Polarization-Sensitive Grating for Near-Eye Display Rainbow Removal
A polarization-sensitive grating diffracts TE-polarized virtual images while allowing TM-polarized stray light to pass through the waveguide.