Patent · US Active

Backlight module and liquid crystal display device using same

US9341894B2 · kind B2 · utility

1Cited by
1References
11Claims
0Family size

Assignee

Inventor

Key dates

Filing dateAug 25, 2014
Grant dateMay 17, 2016
Priority date—
Expiry dateOct 19, 2034

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02F1/133622
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A backlight module includes a number of laser units, a number of diffraction units, and a number of diverging units. Each laser unit includes three colored lasers arranged in a first straight line. The three lasers respectively emit red, green, and blue light. Each of the diffraction units includes three diffraction elements. The three diffraction elements are configured to diffract the light along the first straight line. Each of the diverging units is substantially an elongated semi-cylinder, and the longitudinal direction is along the first straight line. The diverging units diffract the three colors of light along a direction which is perpendicular to the direction of the first straight line.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.