Light emitting unit, liquid crystal module, display device, and lighting system
A display device includes a liquid crystal module ( 10, 20, 30 ) including a display panel ( 10 ) and a light emitting unit ( 20 ) that illuminates the display panel ( 10 ). The light emitting unit ( 20 ) includes a support substrate ( 24 ) that is disposed to face the display panel ( 10 ), a light guide member ( 21 ) that is provided between the display panel ( 10 ) and the support substrate ( 24 ), and has a first end surface ( 213 ) and a second end surface ( 214 ), a light source ( 22 ) that is disposed to face the first end surface ( 213 ), and a holding member ( 25 ) that is provided between the display panel ( 10 ) and the support substrate ( 24 ) along an outer edge of the support substrate ( 24 ), and has a facing surface joined to the second end surface ( 214 ). This display device has a structure suitable for a thin profile.
1 . A display device comprising:
a display panel;
a light emitting unit that faces the display panel and illuminates the display panel;
a unitary structure having a flat portion positioned along an edge of the display panel and oriented perpendicular to a front surface of the display panel and having a second portion that extends inward from the flat portion such that the second portion faces a rear surface of the display panel;
a rear support substrate that faces the rear surface of the display panel;
a light guide member that is part of the light emitting unit and is provided between the display panel and the rear support substrate; and
a third structure that contacts a distal end of the second portion and faces at least one end surface of the light guide member,
wherein the unitary structure forms a T-shaped structure that covers an entire edge of the display panel.
2 . The display device according to claim 1 , further comprising a light source that is disposed to face a first end surface of the light guide member that is perpendicular to the front surface of the display panel.
3 . The display device according to claim 2 , further comprising a second end surface of the light guide member that faces the first end surface and is a mirror surface.
4 . The display device according to claim 3 , further comprising a light reflecting layer that covers the second end surface.
5 . The display device according to claim 1 , wherein the third structure is oriented parallel to the flat portion.
6 . The display device according to claim 5 , wherein the third structure is fixed to the second portion.
7 . The display device according to claim 6 , wherein the third structure is positioned between the display panel and the rear support substrate.
8 . The display device according to claim 7 , further comprising a holding member positioned between the third structure and at least one end surface of the light guide member.
9 . The display device according to claim 8 , further comprising an adhesive layer adhered to the holding member and positioned between the holding member and the at least one end surface of the light guide member.
10 . The display device according to claim 9 , further comprising an optical film positioned between the adhesive layer and the at least one end surface of the light guide member.
11 . The display device according to claim 8 , further comprising an optical film positioned between the holding member and the at least one end surface of the light guide member.
12 . The display device according to claim 1 , wherein the rear support substrate includes a metal material.
13 . The display device according to claim 8 , wherein the holding member is provided to run along two end surfaces of the light guide member that are perpendicular to the first end surface.
14 . The display device according to claim 1 , wherein the display panel is a liquid crystal module.
15 . The display device according to claim 1 , wherein the light guide member comprises a glass material having a higher rigidity than resin materials and having a lower coefficient of thermal expansion than resin materials.
16 . The display device according to claim 1 , further comprising a reflection sheet disposed on a back surface of the light guide member.
17 . The display device according to claim 1 , wherein the third structure is fixed to the second portion.
18 . The display device according to claim 17 , wherein the third structure is positioned between the display panel and the rear support substrate.
19 . The display device according to claim 18 , further comprising a holding member positioned between the third structure and at least one end surface of the light guide member.
20 . The display device according to claim 19 , further comprising an adhesive layer adhered to the holding member and positioned between the holding member and the at least one end surface of the light guide member.