Patent ID: 9207378
Filing Date: 2015-12-08
Classification: F21K,G02B

Abstract:
1. A method for eliminating hotspots of a backlight module, the backlight module comprising a light-guide plate, an optical film attaching to a side of a light emitting face of the light-guide plate, and a strip-like assembly of point light source positioned at the side of the light incident face of the light-guide plate, the strip-like assembly of point light source comprising point light sources toward the light incident face of the light-guide plate thereon, comprising the following steps: S S S wherein the step S S S 22 : if stimulation extent of hotspot effect does not yet reach predetermined expectation, then regulating a shape and size of the simulation indents of the optical film and returning to step S 21 ; and if obtained extent of hotspot effect reaches the predetermined expectation, then using the obtained simulation indents for the indents to be formed for the optical film and returning to step S 3 .