The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 22, 2015
Filed:
May. 23, 2013
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
Chih-Chen Lai, New Taipei, TW;
HON HAI PRECISION INDUSTRY CO., LTD., New Taipei, TW;
Abstract
A method to manufacture an LED backlight module comprising steps: providing a substrate with circuits arranged thereon; pasting a plurality of LEDs on the substrate; electrically conducting the LEDs with the circuits on the substrate; providing a luminance photometer to measure an illumination of the LEDs in luminous state and getting an actual light intensity distribution of the light of the LEDs through a brightening sheet and a diffusion sheet; providing a computer to detect whether the actual light intensity distribution has a dark/bright band/spot. If the actual light intensity distribution is uniform, the LEDs are soldered to the substrate directly. If there is dark/bright band/spot, the positions of LEDs in connection with the irregular light band/spot are adjusted to enable the light from the LED backlight module to have a uniform intensity distribution.