Patent ID: 7555321

Claim:
A communication portable terminal device, comprising: a light source, disposed in a housing; and a light guiding panel, disposed in the housing for guiding a light from the light source, wherein the light guiding panel includes: a light transmitting member having a plate like shape, wherein the light transmitting member has: an incident portion on which the light emitted from the light source is incident, and provided on a back face of the light transmitting member; and an emitting portion from which the light transmitted from the light source is emitted, and provided on a front face of the light transmitting member; and reflecting units for reflecting plural times the light emitted from the light source and incident on the incident portion and guiding the light to the emitting portion, wherein the reflecting units comprise a first reflecting unit and a second reflecting unit, wherein the first reflecting unit is provided on the front face of the light transmitting member and the second reflecting unit is provided on the back face of the light transmitting member, wherein the light transmitting member further includes a V-shaped groove, and the V-shaped groove is provided in the vicinity of a surface boundary between the first reflecting member and the light transmitting member.