US 12,356,540 B2 · Printed circuit board and image display device including same

Abstract

The present invention relates to a printed circuit board and an image display device including same. The printed circuit board according to an embodiment of the present invention includes a power pattern layer, a ground pattern layer, and a wiring pattern layer on which circuit elements are disposed, wherein the wiring pattern layer includes a signal line pattern through which an electrical signal is transmitted, and a ground pattern electrically disconnected from the signal line pattern and having at least one via hole formed therein which is electrically connected to the ground pattern layer, wherein the signal line pattern comes into contact with a first end of an overvoltage cutoff element that operates in response to an overvoltage, greater than or equal to a predetermined voltage value, being applied to the signal line pattern, wherein the ground pattern includes a first detailed pattern coming into contact with a second end of the overvoltage cutoff element, a second detailed pattern having the via-hole formed therein, and a plurality of third detailed patterns electrically connecting the first detailed pattern and the second detailed pattern, wherein the via hole is formed in a remaining region except for a plurality of first regions of the second detailed pattern that extend from each of the third detailed patterns in a length direction of each of the plurality of third detailed patterns. Various other embodiments are possible.

Claims8

Dependent claims

A printed circuit board comprising:

a power pattern layer;
a ground pattern layer;
and
a wiring pattern layer on which a plurality of circuit elements are disposed,
wherein the wiring pattern layer comprises:
a signal line pattern through which an electrical signal is transmittable;
and
a ground pattern electrically disconnected from the signal line pattern and having at least one via hole therein, wherein the at least via hole is electrically connected to the ground pattern layer,
wherein the signal line pattern is in contact with a first end of an overvoltage cutoff element of the plurality of circuit elements, wherein the overvoltage cutoff element is configured to operate in response to an overvoltage applied to the signal line pattern, the overvoltage being greater than or equal to a predetermined voltage,
wherein the ground pattern comprises:
a first detailed pattern in contact with a second end of the overvoltage cutoff element;
a second detailed pattern having the at least one via hole therein;
and
a plurality of third detailed patterns electrically connecting the first detailed pattern and the second detailed pattern, and
wherein the at least one via hole is located at a remainder region of the second detailed pattern different from a plurality of first regions of the second detailed pattern that extend respectively from the plurality of third detailed patterns, each of the plurality of first regions extending along a length direction of the respective third detailed pattern.

12 more elements

An image display device comprising:

a display;
an external device interface configured to transmit and receive data to and from an external device;
and
a power supply configured to supply power,
wherein the external device interface comprises a printed circuit board having a power pattern layer to which the power supplied by the power supply is input, a ground pattern layer, and a wiring pattern layer on which a plurality of circuit elements are disposed,
wherein the wiring pattern layer comprises:
a power line pattern in which at least one first via hole electrically connected to the power pattern layer is located, wherein the power line pattern is connected to the external device;
a signal line pattern through which an electrical signal including the data is transmittable;
and
a ground pattern in which at least one second via hole is located, wherein the at least one second via hole is electrically connected to the ground pattern layer,
wherein the signal line pattern is in contact with a first end of an overvoltage cutoff element of the plurality of circuit elements, wherein the overvoltage cutoff element is configured to operate in response to an overvoltage applied to the signal line pattern, the overvoltage being greater than or equal to a predetermined voltage,
wherein the ground pattern comprises:
a first detailed pattern in contact with a second end of the overvoltage cutoff element;
a second detailed pattern having the at least one second via hole therein;
and
a plurality of third detailed patterns electrically connecting the first detailed pattern and the second detailed pattern, and
wherein the at least one second via hole is located at a remainder region of the second detailed pattern different from a plurality of first regions of the second detailed pattern that extend respectively from the plurality of third detailed patterns, each of the plurality of first regions extending along a length direction of the respective third detailed pattern.

14 more elements

Dependencies are inferred from the claim text.

Printed circuit board and image display device including same

Life of this patent

Printed circuit board and image display device including same

Life of this patent

Abstract

Claims8