Minimizing border of a display device

Patent metadata

Field	Value
Publication number	US-10146090-B2
Application number	US-201615225687-A
Country	US
Kind code	B2
Filing date	Aug 1, 2016
Priority date	Aug 1, 2016
Publication date	Dec 4, 2018
Grant date	Dec 4, 2018

Abstract

Display devices with a minimized border and methods of manufacturing display devices are described herein. In one example, a display unit is provided, the display unit having a display active area disposed between an encapsulation layer and a substrate such that the encapsulation layer encloses the display active area between a surface of the encapsulation layer and a surface of the substrate. A section of the display unit is cut at one edge of the display unit such that a portion of the encapsulation layer and a portion of the substrate are removed from the display unit while no display active area is removed. The cut section of the display unit is then sealed.

First claim

What is claimed is:

1. A method of reducing a border of an electronic device, the method comprising:
providing a display unit of the electronic device, the display unit having a display active area disposed between an encapsulation layer and a substrate having an inner surface and an outer surface, wherein the encapsulation layer encloses the display active area between a surface of the encapsulation layer and the inner surface of the substrate;
cutting a section of the display unit at one edge of the display unit such that a portion of the encapsulation layer and a portion of the substrate are removed from the display unit while no display active area is removed;
placing a transparent cover over the display unit, the transparent cover having a first section and a second section, wherein the first section of the transparent cover is disposed in a plane parallel with the encapsulation layer such that the encapsulation layer is disposed between the first section of the transparent cover and the display active area, and wherein the second section of the transparent cover is disposed along the cut section of the display unit in a plane perpendicular with the first section; and
applying a sealant to cover an opening between the second section of the transparent cover and the outer surface of the substrate at the edge of the cut section of the display unit, wherein the sealant is positioned along a plane parallel with the first section of the transparent cover.

2. The method of claim 1 , wherein the display active area comprises a light emitting diode (LED) unit or a liquid crystal display (LCD) and backlight unit.

3. The method of claim 1 , wherein the cutting comprises die cutting.

4. The method of claim 1 , wherein a distance between an edge of the display active area and the edge of the cut section of the display unit is 200 micrometers or less.

5. The method of claim 1 , further comprising:
cutting at least one additional section of the display unit at a respective edge of the display unit such that an additional respective portion of the encapsulation layer and a portion of the substrate are removed from the display unit while no display active area is removed; and
sealing the at least one additional cut section of the display unit.

6. The method of claim 1 , wherein the cutting comprises laser cutting and at least a portion of the encapsulation layer is melted during the laser cutting and used as a sealant to cover an opening between a transparent cover and the substrate along the edge of the cut section of the display unit, such that the cutting and the sealing are performed simultaneously.

7. The method of claim 1 , wherein the transparent cover comprises a glass or a plastic composition.

8. The method of claim 1 , wherein the sealant comprises an acrylic resin, butyl rubber, epoxy resin, latex, plastic, polysulfide, polyurethane, rubber, silicone, urethane, vinylester, polyester, or a combination thereof.

9. The method of claim 1 , further comprising:
heating the applied sealant, therein curing the applied sealant.

10. The method of claim 1 , wherein the cutting comprises computer numerical control (CNC) cutting.

11. The method of claim 1 , wherein the cutting comprises laser cutting.

Assignees

• Microsoft Technology Licensing Llc

Inventors

• Siddiqui Kabir
• Zheng Ying
• Dighde Rajesh

Classifications

• H01L2251/566

  Electricity · mapped topic

• G02F1/133308

  Support structures for LCD panels, e.g. frames or bezels · CPC title

• G02F2202/28

  Adhesive materials or arrangements · CPC title

• G02F2001/133331

  Physics · mapped topic

• H05B33/04

  Sealing arrangements {, e.g. against humidity} · CPC title