A display apparatus including: a display region to display information; and a light luminous region that is luminous by outputting light, the luminous region being arranged in an area adjacent to an outer perimeter of the display region, both the display region and the light luminous region being viewed by a viewer, the display apparatus comprising a display plate light source and a display plate adapted to display the information in the display region, the light luminous region comprising an indicator light source to emit light and a transmissive member made from light transmissive material, and outputting light emitted from the indicator light source via the transmissive member to cause the light luminous region to illuminate the area adjacent to the outer perimeter of the display region, the transmissive member being arranged in the area adjacent to the outer perimeter of the display region, the transmissive member comprising: a light input face that receives the light emitted from the indicator light source, a light output face that has a belt-like extended shape in an extended direction to form the light luminous region by outputting the light inputted from the indicator light source via the light input face, and an attenuation portion formed between the light input face and the light output face to attenuate the light transmitting from the light input face to the light output face, wherein the attenuation portion has a thickness defined between the light input face and the light output face, the thickness being designated to become greater in the extended direction of the light output face from a central portion towards each of end portions (65a, 65b) to cause a luminance in the light luminous region to become smaller from the central portion towards each of ending portions. a display region to display information; and a light luminous region that is luminous by outputting light, the luminous region being arranged in an area adjacent to an outer perimeter of the display region, both the display region and the light luminous region being viewed by a viewer, the display apparatus comprising a display plate light source and a display plate adapted to display the information in the display region, the light luminous region comprising an indicator light source to emit light and a transmissive member made from light transmissive material, and outputting light emitted from the indicator light source via the transmissive member to cause the light luminous region to illuminate the area adjacent to the outer perimeter of the display region, the transmissive member being arranged in the area adjacent to the outer perimeter of the display region, the transmissive member comprising: a light input face that receives the light emitted from the indicator light source, a light output face that has a belt-like extended shape in an extended direction to form the light luminous region by outputting the light inputted from the indicator light source via the light input face, and an attenuation portion formed between the light input face and the light output face to attenuate the light transmitting from the light input face to the light output face, a light input face that receives the light emitted from the indicator light source, a light output face that has a belt-like extended shape in an extended direction to form the light luminous region by outputting the light inputted from the indicator light source via the light input face, and an attenuation portion formed between the light input face and the light output face to attenuate the light transmitting from the light input face to the light output face, wherein the attenuation portion has a thickness defined between the light input face and the light output face, the thickness being designated to become greater in the extended direction of the light output face from a central portion towards each of end portions (65a, 65b) to cause a luminance in the light luminous region to become smaller from the central portion towards each of ending portions.