Patent attributes
An LED light bulb includes a bulb shell, a bulb base, two conductive supports, a stem, two supporting arms, and an LED filament. The bulb base is connected with the bulb shell. The two conductive supports are disposed in the bulb shell. The stem extends from the bulb base to inside of the bulb shell. The two supporting arms are disposed in the bulb shell. The LED filament includes a plurality of LED chips arranged in an array and two conductive electrodes respectively disposed at two ends of the LED filament and connected to the LED chips. The two conductive electrodes are respectively connected to the two conductive supports. A direction of a first highest curved portion of the LED filament and a direction of a second highest curved portion of the LED filament are substantially opposite to a direction of a lower curved portion of the LED filament.