Inventor

KOTCHICK KEITH M

US30 patents

⚠️ This page may combine multiple inventors who share the name “KOTCHICK KEITH M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

KOTCHICK KEITH M

3M INNOVATIVE PROPERTIES CO

Non-inverting transflective assembly

Light guide for use with backlit display

Brightness enhancement article

Transflective layer for displays

Color-compensated information displays

Variable pitch structured optical film

Polarizer constructions and display devices exhibiting unique color effects

Reflective polarizer assembly

Liquid crystal displays with repositionable front polarizers

Structured transflectors for enhanced ambient and backlight operation of transmissive liquid crystal displays

Multiple lightguide backlight

Optical devices having reflective and transmissive modes for display

Polarizer constructions and display devices exhibiting unique color effects

Adhesive stacking for multiple optical films

Spiral multilayer fibers

Structured transflectors for enhanced ambient and backlight operation of transmissive liquid crystal displays

Package of optical films with zero-gap bond outside viewing area

Adhesive stacking for multiple optical films

Pre-stacked optical films with adhesive layer

Day and night film

Non-inverting transflective assembly

Light directing film

Backlighting system including a specular partial reflector and a circular-mode reflective polarizer

Backlighting system including a specular partial reflector and a circular-mode reflective polarizer

BIERNATH ROLF W

Passive and hybrid daylight-coupled N-stack and collapsible backlights for sunlight viewable displays

Passive and hybrid daylight-coupled backlights for sunlight viewable displays

LAMB DAVID J

Hybrid lightguide backlight

BOYD GARY T

Systems and methods for controlling backlight output characteristics

EDMONDS WILLIAM F

Light directing film

3M INNOVATIVE PROPERTIES COMPANY

Compact heads-up display