Display panel including a soft key

• US 20110242465A1
• Filed: 12/09/2010
• Published: 10/06/2011
• Est. Priority Date: 04/01/2010
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Park, Jung-Mok, Kang, Sung-Ku, Lee, Choon-Hyop
• Granted Patent: US 8,692,950 B2
• Time in Patent Office: Days
• US Class Current: 349/110
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/133331 Cover glasses
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/133512 Light shielding layers, e.g. black matrix G02F1/136209 takes precedence
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Abstract

A display panel includes a transparent substrate, a picture region, a black matrix region around the picture region, and a soft key region, a black matrix formed in the black matrix region on one side of the transparent substrate and having a first opening in the soft key region, and an overcoating layer on the transparent substrate including the black matrix, wherein a soft key is implemented in the soft key region by disposing a light source under the first opening of the black matrix. When the display panel is a touch screen panel, conductive sensing cells in the picture region and position detection lines in the black matrix region are included.

Claims

1. A touch screen panel, comprising:

a transparent substrate;

a picture region, a black matrix region around the picture region, and a soft key region disposed in a portion of the black matrix region defined on the transparent substrate;

a black matrix corresponding to the black matrix region on one side of the transparent substrate and having a first opening in the soft key region;

an overcoating layer on one side of the transparent substrate including the upper portion of the black matrix;

a plurality of conductive sensing cells at least in the picture region on the overcoating layer; and

position detection lines formed in the black matrix region on the overcoating layer and connected with the conductive sensing cells,

wherein a soft key is implemented in the soft key region by disposing a light source under the first opening in the black matrix.

2. The touch screen panel as claimed in claim 1, wherein each soft key has a corresponding first opening.

3. The touch screen panel as claimed in claim 1, wherein the first opening includes a pattern of opaque portions therein.

4. The touch screen panel as claimed in claim 3, wherein the pattern includes a linear pattern.

5. The touch screen panel as claimed in claim 1, further comprising one or more conductive sensing cells in the soft key region on the over-coating layer.

6. The touch screen panel as claimed in claim 1, wherein the light source is a backlight of a liquid crystal display device disposed under the touch screen panel.

7. The touch screen panel as claimed in claim 1, wherein the light source is a specific light source for the soft key.

8. The touch screen panel as claimed in claim 1, wherein the transparent substrate is a window substrate at an uppermost substrate in an image display device, and the black matrix, the overcoating layer, the conductive sensing cells, and the position detection lines are formed on a lower surface opposite to a touch surface of the transparent substrate.

9. A display panel, comprising:

a transparent substrate;

a picture region, a black matrix region around the picture region, and a soft key region disposed in a portion of the black matrix region defined on the transparent substrate;

a black matrix formed to correspond to the black matrix region on one side of the transparent substrate and having a first opening in the soft key region; and

an overcoating layer on one side of the transparent substrate including the upper portion of the black matrix,

wherein a soft key is implemented in the soft key region by disposing a light source under the first opening in the black matrix.