Display panel

Patent metadata

Field	Value
Publication number	US-9851605-B2
Application number	US-201414914548-A
Country	US
Kind code	B2
Filing date	Aug 4, 2014
Priority date	Aug 29, 2013
Publication date	Dec 26, 2017
Grant date	Dec 26, 2017

Abstract

A display panel includes a substrate and a display medium layer held on the substrate and has a display region and a frame region outside the display region and a hole on an inner side of the frame region penetrating the substrate and the display medium layer. The display panel further includes a hole-periphery sealing part disposed on the substrate at a side facing the display medium layer so as to surround the hole, in which the hole-periphery sealing part is made of: a first sealing member having a broken loop shape, surrounding the hole, having at least one open section; and at least one second sealing member provided at a location corresponding to the one open section so as to seal said at least one open section.

First claim

What is claimed is:

1. A display panel comprising a substrate and a display medium layer held on the substrate, said display panel having a display region and a frame region outside the display region and including a hole on an inner side of the frame region penetrating the substrate and the display medium layer, the display panel further comprising:
a hole-periphery sealing part formed by expanding, in a planar direction, a sealing member having a dot shape or a planar shape that is provided, before the hole is formed, at a location on the substrate where the hole is to be formed until the sealing member reaches a restricting structure that hinders the expansion of the sealing member so that after drilling the hole, the hole-periphery sealing part has a loop shape of the sealing member bordered by the restricting structure.

2. The display panel according to claim 1 , wherein the restricting structure is
a layered structure provided on the substrate, said layered structure covering the display region.

3. An intermediate panel for manufacturing a display panel, the intermediate panel comprising an upper substrate, a lower substrate, and a display medium layer held between the upper and lower substrates, said intermediate panel having a display region and a frame region outside the display region and having an area on an inner side of the frame region in which a hole penetrating the substrate and the display medium layer is to be formed, the intermediate panel further comprising:
a hole-periphery sealing part covering the area in which the hole is to be formed,
wherein the hole-periphery sealing part is made of: a first sealing member on the lower substrate having a round shape covering the area in which the hole is to be formed; and at least one second sealing member provided on the upper substrate pressing down a part of the round shape defined by the first sealing member.

4. A display panel made by forming the hole in the intermediate panel as set forth in claim 3 at the area in which the hole is to be formed,
wherein, as a result of forming the hole, the hole-periphery sealing part includes at least a remaining loop-shaped portion of the first sealing member surrounding the hole, and a gap between the lower and upper substrates defined by said remaining loop-shaped portion being the same as a gap defined between the lower and upper substrates in other locations in the display panel.

Assignees

• Sharp Kk

Inventors

• Watanabe Hisashi
• Kanehiro Masayuki
• Nakanishi Youhei

Classifications

• G06F1/169

  the I/O peripheral being an integrated pointing device, e.g. trackball in the palm rest area, mini-joystick integrated between keyboard keys, touch pads or touch stripes (G06F1/1643 takes precedence; constructional details of pointing devices G06F3/033) · CPC title

• G06F1/1643

  the display being associated to a digitizer, e.g. laptops that can be used as penpads (details related to the relative motion of the display enclosure with respect to the body enclosure, e.g. to move between laptop and tablet PC configuration G06F1/1615) · CPC title

• G02F1/1341

  Filling or closing of cells · CPC title

• G02F1/1339 Primary

  Gaskets; Spacers; Sealing of cells · CPC title