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:
Oct. 28, 2014
Filed:
Apr. 17, 2013
Dongguan Masstop Liquid Crystal Display Co., Ltd., Dongguan, CN;
Wintek Corporation, Taichung, TW;
Zhi-Ting Ye, Miaoli County, TW;
Ming-Chuan Lin, Taichung, TW;
Hung-Pin Chang, Taichung, TW;
Wen-Chieh Wu, New Taipei, TW;
Dongguan Masstop Liquid Crystal Display Co., Ltd., Industrial Road, Dongcheng, Dongguan, Guangdong, TW;
Wintek Corporation, Taichung, TW;
Abstract
A light tube includes a tube body, at least one light emitting diode, and a transparent cover. The light emitting diode is assembled with the tube body. The transparent cover is disposed on the tube body to cover the light emitting diode and has a roof portion and two side arm portions. A first microstructure region and a second microstructure region are formed on a surface of the roof portion corresponding to the light emitting diode. The second microstructure region extends from two ends of the first microstructure region. A third microstructure region is formed on a surface of each side arm portion corresponding to the light emitting diode. A microstructure density of the second microstructure region is less than or equal to a microstructure density of the first microstructure region, and is greater than or equal to a microstructure density of the third microstructure region.