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1. US20180261149 - LED pixel, LED component, LED panel and LED display screen

Office
United States of America
Application Number 15750687
Application Date 06.08.2015
Publication Number 20180261149
Publication Date 13.09.2018
Grant Number 10515581
Grant Date 24.12.2019
Publication Kind B2
IPC
G09G 3/32
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
22using controlled light sources
30using electroluminescent panels
32semiconductive, e.g. using light-emitting diodes
H01L 33/36
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
33Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
36characterised by the electrodes
H05B 33/08
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
33Electroluminescent light sources
08Circuit arrangements for operating electroluminescent light sources
CPC
H01L 33/36
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
33Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
36characterised by the electrodes
G09G 3/32
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix ; no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
22using controlled light sources
30using electroluminescent panels
32semiconductive, e.g. using light-emitting diodes [LED]
H05B 33/0806
G09G 2310/0264
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2310Command of the display device
02Addressing, scanning or driving the display screen or processing steps related thereto
0264Details of driving circuits
Applicants Shuling Li
Inventors Yi Lin
Agents Michael D. Lazzara
Leech Tishman Fuscaldo & Lampl
Title
(EN) LED pixel, LED component, LED panel and LED display screen
Abstract
(EN)

The LED pixel includes a driver IC (20) and an LED chip (40); the LED chip (40) is stacked and mounted on a surface of the driver IC (20), and a wire (31) going from the cathode of the LED chip (40) is connected to the driver IC (20). The driver IC (20) is an unpackaged die. An insulation layer is disposed on the surface of the die, and a pad (30) disposed on the insulation layer is connected to a positive electrode. The LED chip (40) is mounted on the pad (30), and the anode of the LED chip (40) is electrically connected with the pad (40). This improves the light transmittance of the LED display product.