IP Library Granted Patent US 9,104,076
Granted Patent B2
US 9,104,076 · App. 13/352,438 · Granted Aug 11, 2015

Liquid crystal display

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Quick Facts
Patent No.
US 9,104,076
App. No.
13/352,438
Granted
Aug 11, 2015
Kind
B2
Abstract

A liquid crystal display includes: a liquid crystal display panel; a backlight unit including a light emitting diode; a first flexible printed circuit having first and second end portions and a bent portion, the first end portion of the first flexible printed circuit connected to the liquid crystal display panel; a second flexible printed circuit having first and second end portions, and a bent portion, the first end portion of the second flexible printed circuit coupled with the light emitting diode and a second end portion of the second flexible printed circuit connected to the first flexible printed circuit; an anisotropic conductive film connecting the first flexible printed circuit and the second flexible printed circuit; and a case including a recess portion at rear surface, the second end portion of the second flexible printed circuit is within the recess portion.

Claims (37)

1. A liquid crystal display, comprising:

a liquid crystal display panel;

a backlight unit irradiating light to the liquid crystal display panel, the backlight unit including a light emitting diode;

a first flexible printed circuit having a first end portion and a second end portion, and a bent portion between the first end portion and the second end portion, the first end portion of the first flexible printed circuit being connected to the liquid crystal display panel, the first flexible printed circuit driving the liquid crystal display panel and the light emitting diode;

a second flexible printed circuit having a first end portion and a second end portion, and a bent portion extending between the first end portion and the second end portion, the first end portion of the second flexible printed circuit being coupled with the light emitting diode and the second end portion of the second flexible printed circuit being connected to the first flexible printed circuit;

an anisotropic conductive film connecting the first flexible printed circuit and the second flexible printed circuit; and

a case receiving at least a portion of the backlight unit and the liquid crystal display panel, the case including a rear surface having a recess portion, an endmost portion of the second end portion of the second flexible printed circuit where the second flexible printed circuit is connected to the first flexible printed circuit by the anisotropic conductive film being positioned within the recess portion,

wherein the first end portion of the second flexible printed circuit is not within an interior of the recess portion, and

wherein the bent portion of the second flexible printed circuit extends outside an outermost surface of the case.

2. The liquid crystal display as claimed in claim 1 , wherein

the endmost portion of the second end portion of the second flexible printed circuit is positioned within an interior of the recess portion and positioned between the rear surface of the case and the first flexible printed circuit.

3. The liquid crystal display as claimed in claim 2 , wherein a full extent of the anisotropic conductive film is positioned between the second end portion of the first flexible printed circuit and the second end portion of the second flexible printed circuit.

4. The liquid crystal display as claimed in claim 1 , wherein the anisotropic conductive film and the second end portion of the second flexible printed circuit are positioned within an interior of the recess portion.

5. The liquid crystal display as claimed in claim 1 , wherein the first flexible printed circuit and the second flexible printed circuit each include a flexible insulating film and a complex circuit formed on the flexible insulating film.

6. The liquid crystal display as claimed in claim 5 , wherein the flexible insulating film includes a heat resistant plastic film.

7. The liquid crystal display as claimed in claim 6 , wherein the heat resistant plastic film includes polyethylene terephthalate or polyimide.

8. The liquid crystal display as claimed in claim 1 , wherein the first flexible printed circuit includes driving circuits for driving the liquid crystal display panel and driving circuits for driving the light emitting diodes.

9. The liquid crystal display as claimed in claim 8 , wherein the driving circuits for driving the liquid crystal display panel include at least one of a gate driving circuit, a data driving circuit, and a timing controller.

10. A liquid crystal display, comprising:

a liquid crystal display panel;

a backlight unit irradiating light to the liquid crystal display panel, the backlight unit including a light emitting diode;

a first flexible printed circuit having a first end portion and a second end portion, and a bent portion between the first end portion and the second end portion, the first end portion of the first flexible printed circuit being connected to the liquid crystal display panel, the first flexible printed circuit driving the liquid crystal display panel and the light emitting diode;

a second flexible printed circuit having a first end portion and a second end portion, and a bent portion extending between the first end portion and the second end portion, the first end portion of the second flexible printed circuit being coupled with the light emitting diode and the second end portion of the second flexible printed circuit being connected to the first flexible printed circuit;

an anisotropic conductive film connecting the first flexible printed circuit and the second flexible printed circuit; and

a case receiving at least a portion of the backlight unit and the liquid crystal display panel, the case including a rear surface having a recess portion, an endmost portion of the second end portion of the second flexible printed circuit where the second flexible printed circuit is connected to the first flexible printed circuit by the anisotropic conductive film being positioned within the recess portion,

wherein the first flexible printed circuit extends along an entire length of the liquid crystal display, and

wherein the bent portion of the second flexible printed circuit extends outside an outermost surface of the case.

11. A liquid crystal display, comprising:

a liquid crystal display panel;

a backlight unit irradiating light to the liquid crystal display panel, the backlight unit including a light emitting diode;

a first flexible printed circuit having a first end portion and a second end portion, and a bent portion between the first end portion and the second end portion, the first end portion of the first flexible printed circuit being connected to the liquid crystal display panel, the first flexible printed circuit driving the liquid crystal display panel and the light emitting diode;

a second flexible printed circuit having a first end portion and a second end portion, and a bent portion extending between the first end portion and the second end portion, the first end portion of the second flexible printed circuit being coupled with the light emitting diode and the second end portion of the second flexible printed circuit being connected to the first flexible printed circuit;

an anisotropic conductive film connecting the first flexible printed circuit and the second flexible printed circuit; and

a case receiving at least a portion of the backlight unit and the liquid crystal display panel, the case including a rear surface having a recess portion, an endmost portion of the second end portion of the second flexible printed circuit where the second flexible printed circuit is connected to the first flexible printed circuit by the anisotropic conductive film being positioned within the recess portion, and a front surface having another recess portion, the recess portions of the front and rear surfaces of the case being aligned with one another, the bent portion of the second flexible printed circuit extending from the recess in the front surface of the case to the recess in the rear surface of the case outside an outermost surface of the case.

12. The liquid crystal display as claimed in claim 10 , wherein:

the endmost portion of the second end portion of the second flexible printed circuit is positioned within an interior of the recess portion and positioned between the rear surface of the case and the first flexible printed circuit; and

a full extent of the anisotropic conductive film is positioned between the second end portion of the first flexible printed circuit and the second end portion of the second flexible printed circuit.

Assignments (2)
MERGER Recorded Oct 16, 2012
From: SAMSUNG MOBILE DISPLAY CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 029227/0419 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 18, 2012
From: SON, YANG-HAN
To: SAMSUNG MOBILE DISPLAY CO., LTD.
Reel/Frame 027638/0720 →