An LED light bulb comprises an LED filament configured for emitting omnidirectional light. The filament comprises a linear array of LED chips operably interconnected to emit light upon energization, a conductive electrode electrically connected with the linear array of LED chips, and a light conversion coating enclosing the linear array of the LED chip and the electrode. The light conversion coating includes a top layer and a base layer conformally interconnected to form a unitary enclosure. The top layer is coated on a first side of the linear array of LED chips and the electrode. The base layer is coated on a second side of the linear array of LED chips and the electrode. A first LED chip in the linear array of LED chips is guided by the unitary enclosure to a different angle in relation to a second LED chip in the linear array of the LED chips.