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:
Nov. 24, 2020
Filed:
Nov. 02, 2018
Lumens Co., Ltd., Yongin-si, KR;
Jeongho Bang, Yongin-si, KR;
LUMENS CO., LTD., Yongin-si, KR;
Abstract
Disclosed is an LED display device using a TFT substrate provided with LED driver units. The LED display device includes a TFT substrate, LED chips, a light transmitting plate, and a heat dissipating plate. The TFT substrate includes a plurality of LED driver units arrayed in a matrix. Each of the LED driver units includes a plurality of transistors. The LED chips are attached to and driven by the corresponding LED driver units. The light transmitting plate is attached to the upper portions of the LED chips. Light emitted from the LED chips is transmitted through the light transmitting plate. The heat dissipating plate is attached to the TFT substrate to dissipate heat generated from the LED chips.