US 11,237,431 B2Granted

Display apparatus

AssigneeJapan Display Inc.

InventorsManabu Mizuno, Kentaro Okuyama, Hiroshi Inamura, Hiroki Sugiyama

Life of this patent

Estimating the term…

Loading patent…

Abstract

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.

Claims11

Dependent claims

A display apparatus comprising:

a first substrate having a first side surface and a second side surface opposite to the first side surface;
a second substrate arranged to overlap the first substrate and having a first side surface and a second side surface opposite to the first side surface;
a liquid crystal layer including polymer dispersed liquid crystals placed between the first substrate and the second substrate;
a light-emitting device arranged to face the first side surface of the second substrate at a light source side;
a gap disposed between the light-emitting device and the first side surface of the second 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 substrate and the second side surface of the second substrate at an opposite side of the light source side,
wherein the first substrate is larger than the second 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 substrate, the first side surface being on an opposite side of the second side surface of the second substrates,
a first reflector is the reflector, and arranged to cover both the second side surface of the first substrate and the second side surface of the second substrate,
a second reflector is further arranged to cover both a third side surface of the first substrate and a third side surface of the second substrate,
a second light-emitting device is further arranged to face a fourth side surface of the second substrate, the fourth side surface being on an opposite side of the third side surface of the second substrates, and
the first light-emitting device and the second light-emitting device are located fully within the first substrate in the plan view.

10 more elements

A display apparatus comprising:

a first substrate having a first side surface and a second side surface opposite to the first side surface;
a second substrate arranged to overlap the first substrate and having a first side surface and a second side surface opposite to the first side surface;
a liquid crystal layer including polymer dispersed liquid crystals placed between the first substrate and the second substrate;
a light-emitting device arranged to face the first side surface of the second substrate at a light source side;
a gap disposed between the light-emitting device and the first side surface of the second 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 substrate and the second side surface of the second substrate at an opposite side of the light source side, and that is adhered to the second side surface of the first substrate and the second side surface of the second substrate with an adhesive layer,
wherein the first substrate is larger than the second substrate in a plan view,
the light-emitting device is arranged on a portion of the first substrate which is exposed from the second substrate,
a first light-emitting device is the light-emitting device, and arranged to face the first side surface of the second substrate, the first side surface being on an opposite side of the second side surface of the second substrates,
a first reflector is the reflector, and arranged to cover both the second side surface of the first substrate and the second side surface of the second substrate,
a second reflector is further arranged to cover both a third side surface of the first substrate and a third side surface of the second substrate,
a second light-emitting device is further arranged to face a fourth side surface of the second substrate, the fourth side surface being on an opposite side of the third side surface of the second substrates, and
the first light-emitting device and the second light-emitting device are located fully within the first substrate in the plan view.

11 more elements

A display apparatus comprising:

a first substrate having a first side surface and a second side surface opposite to the first side surface;
a second substrate arranged to overlap the first substrate and having a first side surface and a second side surface opposite to the first side surface;
a liquid crystal layer including polymer dispersed liquid crystals placed between the first substrate and the second substrate;
a light-emitting device arranged to face the first side surface of the second substrate at a light source side;
a gap disposed between the light-emitting device and the first side surface of the second 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 substrate at an opposite side of the light source side,
wherein the first substrate is larger than the second substrate in a plan view,
the light-emitting device is arranged on a portion of the first substrate which is exposed from the second substrate,
a first light-emitting device is the light-emitting device, and arranged to face the first side surface of the second substrate, the first side surface being on an opposite side of the second side surface of the second substrates,
a first reflector is the reflector, and arranged to cover both the second side surface of the first substrate and the second side surface of the second substrate,
a second reflector is further arranged to cover both a third side surface of the first substrate and a third side surface of the second substrate,
a second light-emitting device is further arranged to face a fourth side surface of the second substrate, the fourth side surface being on an opposite side of the third side surface of the second substrates, and
the first light-emitting device and the second light-emitting device are located fully within the first substrate in the plan view.

11 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/115,201Filed 8 Dec 2020 · continuation
Priority: JP 2016-1514551 Aug 2016
Published: US 2021/0116759 A122 Apr 2021
Granted: 1 Feb 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

G02F 1/133615
Illuminating devices: edge-illuminating devices, i.e. illuminating from the side
G02B 6/0055
Provided by one optical element, or plurality thereof, placed on the light output side of the light guide: reflecting element, sheet or layer
G02B 6/0076
Arrangements of multiple light guides: stacked arrangements of multiple light guides of the same or different cross-sectional area
G02F 1/1334
Constructional arrangements; Manufacturing methods: based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals

Family

Application15/664,780Parent of this continuation · filed 31 Jul 2017
Application16/743,530Parent of this continuation · filed 15 Jan 2020
US 10,545,377 B2Parent of this continuation · filed 28 Jan 2020
US 2021/0116759 A1Pre-grant publication · published 22 Apr 2021
US 10,890,804 B2Parent of this continuation
US 2018/0031758 A1Published application
US 2020/0150490 A1Published application
US 11,237,431 B2This patent

From the US filing history. Foreign family members aren’t listed.