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:
Feb. 04, 2014
Filed:
Aug. 31, 2011
Liang-chan Liao, Shenzhen, CN;
Po-shen Lin, Shenzhen, CN;
Yu Wu, Shenzhen, CN;
Shenzhen China Star Optoelectronics Technology Co., Ltd., Shenzhen, Guangdong Province, CN;
Abstract
A chip on film (COF) is disclosed in the present disclosure, which comprises an adhesive base layer, a driving integrated circuit (IC), an adhesive layer and a copper layer. The driving IC is embedded on a surface of the adhesive base layer; the adhesive layer is located under the adhesive base layer; the copper layer is located under the adhesive layer. The adhesive base layer is formed with a heat and pressure spreading structure. A heat and pressure spreading structure is disposed on the adhesive base layer of the COF so that deformation or unevenness of the glass substrate in the bonded area can be avoided when the COF is thermally pressed to the glass substrate of the LCD. These guarantees the consistency between the bonded area and the unbounded area, the bonded area and the unbounded area of the glass substrate will have the same transmissivity and luminance.