Patent ID: 8581831
Filing Date: 2013-11-12
Classification: G02B,G02F,G09G

Abstract:
1. A method of backlighting a display, the method comprising: turning on a light array of N light arrays in response to display data having been written to a corresponding horizontal row of N horizontal rows of the display, the turned-on light array configured for backlighting predominately the corresponding horizontal row of the display, the backlighting based on light emitted from the turned-on light array being injected into an input edge of a waveguide that is configured for causing the injected light to emerge from the waveguide predominately over the corresponding horizontal row of the display, where each of the N light arrays is configured for emitting light that is subdivided over a range of input angles, and where the input edge of the waveguide is configured for causing the subdivided light from the each of the N light arrays to emerge, based on the range of input angles, from the waveguide predominately over a corresponding one of the N horizontal rows of the display; turning off the turned-on light array in response to display data having been written to another horizontal row of the N horizontal rows of the display; and repeating the method in response to the turning off.