Patent ID: 8749479

Claim:
An electronic paper (E-paper) display device comprising: a first substrate comprising at least one side wall having a high reflectance film coated thereon; a second substrate; an E-paper layer between the first and the second substrates; a light source installed beside and facing the at least one sidewall of the first substrate, the light source being configured for illuminating the E-paper layer with some of the light from the light source directly illuminating the E-paper layer and some of the light from the light source illuminating the E-paper layer via the reflection of the high reflectance film; and wherein the light source comprises a printed circuit board and a plurality of light emitting diodes (LEDs) installed on the printed circuit board, the plurality of LEDs are installed within the E-paper layer and tilts about 5 to about 25 degrees relative to the E-paper layer.