Display device

Patent metadata

Field	Value
Publication number	US-10317609-B2
Application number	US-201615346900-A
Country	US
Kind code	B2
Filing date	Nov 9, 2016
Priority date	Nov 12, 2015
Publication date	Jun 11, 2019
Grant date	Jun 11, 2019

Abstract

A display device includes a display panel, a light source and an optical component which receives light from the light source, outputs the provided light toward the display panel, and includes a light guiding film which guides the light toward the display panel, an optical sheet which is coupled to the light guiding film, and the optical sheet includes a base film and optical patterns disposed between the base film and the light guiding film to adjust the traveling direction of the light, and a reinforcing part filled between the base film and the light guiding film corresponding to a periphery of the optical component.

First claim

What is claimed is:

1. A display device comprising:
a display panel;
a light source which generates light; and
an optical component which receives the light and outputs the received light toward the display panel, and includes:
a light guiding film which guides the light toward the display panel;
an optical sheet which is coupled to the light guiding film, and the optical sheet includes:
a base film;
optical patterns which are disposed between the base film and the light guiding film and adjust a traveling direction of the light; and
an adhesive layer disposed between the optical sheet and the light guiding film, and a lower surface of each of the optical patterns is attached to the adhesive layer, and an upper surface of the light guiding film is attached to the adhesive layer; and

a reinforcing part disposed between the base film and the adhesive layer corresponding to a periphery of the optical component,

wherein an outer surface of the light guiding film, an outer surface of the base film, and an outer surface of the reinforcing part are positioned on one imaginary surface at one side of the optical component, and
the outer surface of the reinforcing part has a concavo-convex pattern.

2. The display device of claim 1 , wherein the optical component further comprises a light-blocking layer disposed on the outer surface of the reinforcing part.

3. The display device of claim 1 , wherein each of the optical patterns has a dot shape in a plan view.

4. The display device of claim 1 , wherein the reinforcing part has a linear shape in a plan view.

5. The display device of claim 1 , wherein a portion of the reinforcing part has a linear shape in a plan view, and another portion of the reinforcing part has a shape in which a plurality of dots is arranged in the plan view.

6. A display device comprising:
a display panel;
a light source which generates light; and
an optical component which receives the light and outputs the received light toward the display panel, and includes:
a light guiding film which guides the light toward the display panel;
an optical sheet which is coupled to the light guiding film, and the optical sheet includes a base film and optical patterns which are disposed between the base film and the light guiding film and adjust a traveling direction of the light; and
a reinforcing part disposed between the base film and the light guiding film corresponding to a periphery of the optical component, wherein an incident surface facing the light source is defined on the light guiding film, and the reinforcing part extends along the incident surface.

7. The display device of claim 6 , wherein
an opposing surface facing the incident surface and a connecting surface connecting the incident surface to the opposing surface are defined on the light guiding film, and
the reinforcing part extends along at least one between the opposing surface and the connecting surface.

8. The display device of claim 7 , wherein the optical component further comprises light-collecting layers which have a shape protruding from a rear surface of the light guiding film and have a length direction in a direction from the incident surface toward the opposing surface in a plan view.

9. The display device of claim 7 , wherein a length direction of each of the optical patterns is parallel to a length direction of the incident surface in a plan view, and a width direction of each of the optical patterns is parallel to a length direction of the connecting surface in a plan view.

10. The display device of claim 1 , wherein the optical sheet further comprises a diffusing layer which is disposed on the base film and faces the optical patterns with the base film disposed therebetween.

11. The display device of claim 1 , wherein the optical patterns are disposed spaced apart from each other between the light guiding film and the base film, and an air layer is defined between adjacent optical patterns among the optical patterns.

12. The display device of claim 1 , wherein the closer each of the optical patterns from the light guiding film to the base film, the greater the width of each of the optical patterns.

13. The display device of claim 1 , wherein the optical sheet further comprises:
a plurality of reinforcing patterns disposed between the base film and the light guiding film,
wherein each of the plurality of reinforcing patterns comprises:
a base layer having a light-transmitting property and coupled to the light guiding film and the base film; and
a reflective layer disposed between the base layer and the light guiding film.

14. A display device comprising:
a display panel;
a light source generating light; and
an optical component which receives the light and outputs the received light toward the display panel,
wherein the optical component comprises:
a light guiding film; and
an optical sheet which is coupled to the light guiding film, and
wherein the optical sheet comprises:
a base film;

a plurality of optical patterns disposed between the base film and the light guiding film; and

a plurality of reinforcing patterns disposed between the base film and the light guiding film, each of the plurality of reinforcing patterns including a reflective layer attached to an upper surface of the light guiding film facing the display panel,

wherein the each of the plurality of reinforcing patterns further comprises:
a base layer having a light-transmitting property and disposed between the light guiding film and the base film; and
wherein the reflective layer of the each of the plurality of reinforcing patterns is disposed between the base layer and the light guiding film.

15. The display device of claim 14 , wherein an incident surface and an opposing surface opposing the incident surface are defined in the light guiding film, an imaginary line is defined substantially parallel to the incident surface and the opposing surface to divide the optical component into two portions in a plan view, and a number of reinforcing patterns of the plurality of reinforcing patterns disposed between the incident surface and the imaginary line in the plan view is greater than a number of reinforcing patterns of the plurality of reinforcing patterns disposed between the opposing surface and the imaginary line in the plan view.

16. The display device of claim 14 , wherein an incident surface and an opposing surface opposing the incident surface are defined in the light guiding film, and a density of the plurality of optical patterns increases as a distance from the incident surface to the opposing surface.

17. The display device of claim 14 , wherein the optical sheet further comprises;
an adhesive layer which is attached to the light guiding film,
wherein a lower surface of each of the plurality of optical patterns is attached to the adhesive layer, and the reflective layer is attached to the adhesive layer.

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Kang-Woo
• Oh Sunhee
• Kang Yongkyu
• Lee Hyunwoo

Classifications

• G02B6/0055

  Reflecting element, sheet or layer · CPC title

• G02B6/0036

  2-D arrangement of prisms, protrusions, indentations or roughened surfaces · CPC title

• G02B6/005 Primary

  provided by one optical element, or plurality thereof, placed on the light output side of the light guide · CPC title

• G02B6/0088

  of the light guide or other optical sheets in the package · CPC title

• G02B6/0058

  varying in density, size, shape or depth along the light guide · CPC title