An optical waveguide for emitting light of uniform intensity distributed over the light emitting surface so as to suppress the occurrences of bright lines includes an optical waveguide and surface light emitting apparatus that has a light emitting plane and a reflecting plane that oppose each other. Accordingly, the LCD including the point light source has excellent light efficiency and brightness uniformity. An end of the battery cover 8 away from the chassis frame 1 is provided with a front wall 8b having a locking portion 10, the locking portion 10 being adapted to be engaged with a locked portion 4d\u2032 of the battery bracket 4d. At the same time a scratch protection layer may be formed over regions not overlying optical sensors.