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:
Apr. 14, 2015
Filed:
Aug. 22, 2013
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
Yung-Chang Tseng, New Taipei, TW;
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
Abstract
A writing device includes an emitter and a light emitting diode display panel. The light emitting diode display panel includes an array and a receiver. The array has a plurality of pixels each including a first light source, a second light source, a third light source, a driving circuit and a light detecting device. The light detecting device is configured to receive the control signal from the emitter and transmit the control signal to the driving circuit to turn on the pixel. The receiver is electrically connected with the driving circuit. The receiver is configured to receive at least one of the first selective signal, the second selective signal and the third selective signal and transmit it to the driving circuit to turn on at least a corresponding one of the first light source, the second light source, and the third light source.