An optical member (500, 1500) for positioning on a multi-panel display device having a plurality of adjoining individual display devices, the optical member (500, 1500) comprising: a frame section (590, 1590, 2590) configured to cover portions of display areas of first and second adjoining individual display devices and portions of non-display areas of the first and second adjoining individual display devices, the non-display areas surrounding the respective display areas of the respective individual display device; and central areas (580, 1580) configured to transmit light, wherein the frame section (590, 1590, 2590) comprises a plurality of light conduits comprising core portions of a first refractive index and cladding portions of a second refractive index lower than the first refractive index, the cladding portions surrounding the core portions, and wherein the frame section (590, 1590, 2590) further includes a bottom portion to be placed on the display areas of the individual display devices, and an inner inclined surface (530, 2530) extending from the bottom portion, forming a first acute angle with the bottom portion and configured to face away from the individual display devices, wherein the light conduits comprise: input ends, opened to the bottom portion and configured to receive light from covered portions of the display areas; and output ends opposite to the input ends, configured to face away from the individual display devices and to output light in the areas of the portions of display areas and the portions of non-display areas, the optical member (500, 1500) further comprising a refraction compensating member on the inner inclined surface, the refraction compensation member being configured to refract light received from the inner inclined surface in a direction perpendicular to surfaces of the individual display devices, wherein the refraction compensating member comprises a first surface on the inner inclined surface, and a second surface opposite to the first surface, the first surface forming an acute angle with the second surface, the optical member characterized in that the second surface is forming another acute angle relative to the surfaces of the individual display devices. a frame section (590, 1590, 2590) configured to cover portions of display areas of first and second adjoining individual display devices and portions of non-display areas of the first and second adjoining individual display devices, the non-display areas surrounding the respective display areas of the respective individual display device; and central areas (580, 1580) configured to transmit light, wherein the frame section (590, 1590, 2590) comprises a plurality of light conduits comprising core portions of a first refractive index and cladding portions of a second refractive index lower than the first refractive index, the cladding portions surrounding the core portions, and wherein the frame section (590, 1590, 2590) further includes a bottom portion to be placed on the display areas of the individual display devices, and an inner inclined surface (530, 2530) extending from the bottom portion, forming a first acute angle with the bottom portion and configured to face away from the individual display devices, wherein the light conduits comprise: input ends, opened to the bottom portion and configured to receive light from covered portions of the display areas; and output ends opposite to the input ends, configured to face away from the individual display devices and to output light in the areas of the portions of display areas and the portions of non-display areas, the optical member (500, 1500) further comprising a refraction compensating member on the inner inclined surface, the refraction compensation member being configured to refract light received from the inner inclined surface in a direction perpendicular to surfaces of the individual display devices, wherein the refraction compensating member comprises a first surface on the inner inclined surface, and a second surface opposite to the first surface, the first surface forming an acute angle with the second surface, the optical member characterized in that the second surface is forming another acute angle relative to the surfaces of the individual display devices.