Display apparatus
According to an aspect, a display apparatus includes: a first light-transmissive substrate; a second light-transmissive substrate arranged to face the first light-transmissive substrate; a liquid crystal layer including polymer dispersed liquid crystals sealed between the first light-transmissive substrate and the second light-transmissive substrate; at least one light-emitting device arranged to face at least one of a side surface of the first light-transmissive substrate or a side surface of the second light-transmissive substrate; and at least one reflector arranged on at least one of a side surface of the first light-transmissive substrate or a side surface of the second light-transmissive substrate, the side surface of the first or second light-transmissive substrate being on an opposite side of the side surface of the first or second light-transmissive substrate to which the at least one light-emitting device faces, and configured to reflect light at the side surface on the opposite side.
1. A display apparatus comprising:
a first light-transmissive substrate having a first side surface and a second side surface opposite to the first side surface;
a plurality of pixel electrodes arranged on the first light-transmissive substrate;
a second light-transmissive substrate arranged to face the first light-transmissive substrate and having a first side surface and a second side surface opposite to the first side surface;
a common electrode formed on the second light-transmissive substrate;
a liquid crystal layer including polymer dispersed liquid crystals sealed between the first light-transmissive substrate and the second light-transmissive substrate;
a light-emitting device arranged to face the first side surface of the second light-transmissive substrate at a light source side;
a gap disposed between the light-emitting device and the first side surface of the second light-transmissive substrate at the light source side, the gap being an air gap; and
a reflector that covers both the second side surface of the first light-transmissive substrate and the second side surface of the second light-transmissive substrate at an opposite side of the light source side,
wherein the first light-transmissive substrate is larger than the second light-transmissive substrate in a plan view,
a first light-emitting device is the light-emitting device, and arranged to face the first side surface of the second light-transmissive substrate, the first side surface being on an opposite side of the second side surface of the second light-transmissive substrates,
a first reflector is the reflector, and arranged to cover both the second side surface of the first light-transmissive substrate and the second side surface of the second light-transmissive substrate,
a second reflector is further arranged to cover both a third side surface of the first light-transmissive substrate and a third side surface of the second light-transmissive substrate,
a second light-emitting device is further arranged to face a fourth side surface of the second light-transmissive substrate, the fourth side surface being on an opposite side of the third side surface of the second light-transmissive substrates, and
the first light-emitting device and the second light-emitting device are located fully within the first light-transmissive substrate in the plan view.
2. The display apparatus according to claim 1 , wherein
the reflector is adhered to both the second side surface of the first light-transmissive substrate and the second side surface of the second light-transmissive substrate with a light-transmissive adhesive layer.
3. The display apparatus according to claim 2 , wherein
a refractive index of the light-transmissive adhesive layer is equal to or less than that of the first light-transmissive substrate or the second light-transmissive substrate.
4. The display apparatus according to claim 1 , wherein
the reflector is formed of aluminum or silver in a film manner.
5. The display apparatus according to claim 1 , wherein
the reflector is formed of metal particles of aluminum or silver to have a paste form.
6. The display apparatus according to claim 1 , wherein
the light-emitting device is arranged on a portion of the first light-transmissive substrate which is exposed from the second light-transmissive substrate.
7. A display apparatus comprising:
a first light-transmissive substrate having a first side surface and a second side surface opposite to the first side surface;
a plurality of squared pixel electrodes arranged in a matrix on the first light-transmissive substrate;
a second light-transmissive substrate arranged to face the first light-transmissive substrate and having a first side surface and a second side surface opposite to the first side surface;
a common electrode formed on the second light-transmissive substrate;
a liquid crystal layer including polymer dispersed liquid crystals sealed between the first light-transmissive substrate and the second light-transmissive substrate;
a light-emitting device arranged to face the first side surface of the second light-transmissive substrate at a light source side;
a gap disposed between the light-emitting device and the first side surface of the second light-transmissive substrate at the light source side, the gap being an air gap; and
a reflector that covers both the second side surface of the first light-transmissive substrate and the second side surface of the second light-transmissive substrate at an opposite side of the light source side, and that is adhered to the second side surface of the first light-transmissive substrate and the second side surface of the second light-transmissive substrate with a light-transmissive adhesive layer,
wherein the first light-transmissive substrate is larger than the second light-transmissive substrate in a plan view,
the light-emitting device is arranged on a portion of the first light-transmissive substrate which is exposed from the second light-transmissive substrate,
a first light-emitting device is the light-emitting device, and arranged to face the first side surface of the second light-transmissive substrate, the first side surface being on an opposite side of the second side surface of the second light-transmissive substrates,
a first reflector is the reflector, and arranged to cover both the second side surface of the first light-transmissive substrate and the second side surface of the second light-transmissive substrate,
a second reflector is further arranged to cover both a third side surface of the first light-transmissive substrate and a third side surface of the second light-transmissive substrate,
a second light-emitting device is further arranged to face a fourth side surface of the second light-transmissive substrate, the fourth side surface being on an opposite side of the third side surface of the second light-transmissive substrates, and
the first light-emitting device and the second light-emitting device are located fully within the first light-transmissive substrate in the plan view.
8. The display apparatus according to claim 7 , wherein
a refractive index of the light-transmissive adhesive layer is equal to or less than that of the first light-transmissive substrate or the second light-transmissive substrate.
9. A display apparatus comprising:
a first light-transmissive substrate having a first side surface and a second side surface opposite to the first side surface;
a pixel electrode arranged on the first light-transmissive substrate;
a second light-transmissive substrate arranged to face the first light-transmissive substrate and having a first side surface and a second side surface opposite to the first side surface;
a common electrode formed on the second light-transmissive substrate;
a liquid crystal layer including polymer dispersed liquid crystals sealed between the first light-transmissive substrate and the second light-transmissive substrate;
a light-emitting device arranged to face the first side surface of the second light-transmissive substrate at a light source side;
a gap disposed between the light-emitting device and the first side surface of the second light-transmissive substrate at the light source side, the gap being an air gap; and
a reflector that covers at least the second side surface of the second light-transmissive substrate at an opposite side of the light source side,
wherein the first light-transmissive substrate is larger than the second light-transmissive substrate in a plan view,
the light-emitting device is arranged on a portion of the first light-transmissive substrate which is exposed from the second light-transmissive substrate,
a first light-emitting device is the light-emitting device, and arranged to face the first side surface of the second light-transmissive substrate, the first side surface being on an opposite side of the second side surface of the second light-transmissive substrates,
a first reflector is the reflector, and arranged to cover both the second side surface of the first light-transmissive substrate and the second side surface of the second light-transmissive substrate,
a second reflector is further arranged to cover both a third side surface of the first light-transmissive substrate and a third side surface of the second light-transmissive substrate,
a second light-emitting device is further arranged to face a fourth side surface of the second light-transmissive substrate, the fourth side surface being on an opposite side of the third side surface of the second light-transmissive substrates, and
the first light-emitting device and the second light-emitting device are located fully within the first light-transmissive substrate in the plan view.
10. The display apparatus according to claim 9 , wherein
the reflector is adhered to the second side surface of the second light-transmissive substrate with a light-transmissive adhesive layer.
11. The display apparatus according to claim 10 , wherein
a refractive index of the light-transmissive adhesive layer is equal to or less than that of the first light-transmissive substrate or the second light-transmissive substrate.