Portable display device

• US 20070115419A1
• Filed: 09/12/2006
• Published: 05/24/2007
• Est. Priority Date: 11/23/2005
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Mobile Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Song, Hyo
• Granted Patent: US 7,626,672 B2
• Time in Patent Office: Days
• US Class Current: 349/150
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/13452 Conductors connecting driver circuitry and terminals of panels
• CPC Class Codes: H05K 1/0215 Grounding of printed circuits by connection to external grounding means
• CPC Class Codes: H05K 1/0259 Electrostatic discharge [ESD] protection
• CPC Class Codes: H05K 2201/053 Tails
• CPC Class Codes: H05K 2201/055 Folded back on itself

Abstract

A portable display panel includes a liquid crystal display panel for displaying images, a backlight assembly including a light source for supplying light to the liquid crystal display panel, a bottom chassis for receiving the backlight assembly, a first printed circuit board for controlling the liquid crystal display panel and the light source, a second printed circuit board connected to the first printed circuit board and an external drive circuit, and a protrusion extending from the first printed circuit board. The protrusion has copper film exposed on its end. The copper film of the protrusion is electrically connected to the bottom chassis.

Claims

1. A portable display panel comprising:

a liquid crystal display panel for displaying images;

a backlight assembly including a light source for supplying light to the liquid crystal display panel;

a bottom chassis for receiving the backlight assembly;

a first printed circuit board for controlling the liquid crystal display panel and the light source;

a second printed circuit board connected to the first printed circuit board and an external drive circuit; and

a protrusion extending from the first printed circuit board, the protrusion having copper film exposed on an end thereof, wherein the copper film of the protrusion is electrically connected to the bottom chassis.

2. The portable display panel as claimed in claim 1, wherein the copper film of the protrusion is connected to a ground of the first printed circuit board and a ground of the second printed circuit board.

3. The portable display panel as claimed in claim 1, wherein the protrusion is a first protrusion, the portable display panel further comprising a second protrusion, and wherein the first protrusion extends from a first side of the first printed circuit board and the second protrusion extends from a second, opposite side of the first printed circuit board.

4. The portable display panel as claimed in claim 1, wherein the protrusion is folded.

5. The portable display panel as claimed in claim 4, wherein the protrusion is folded at a predetermined angle.

6. The portable display panel as claimed in claim 1, further comprising a light emitting panel connected to the second printed circuit board.

7. The portable display panel as claimed in claim 6, wherein the light emitting panel is connected to the second printed circuit board on a side distal to the first printed circuit board.

8. The portable display panel as claimed in claim 1, wherein the liquid crystal display panel comprises:

a first substrate;

a second substrate facing the first substrate, the second substrate having a plurality of thin film transistors located thereon; and

a liquid crystal layer injected between the first substrate and the second substrate.

9. The portable display panel as claimed in claim 1, wherein the light source comprises at least one light emitting diode.