Printed circuit board and display device having the same

Patent metadata

Field	Value
Publication number	US-2016157337-A1
Application number	US-201514685208-A
Country	US
Kind code	A1
Filing date	Apr 13, 2015
Priority date	Dec 2, 2014
Publication date	Jun 2, 2016
Grant date	—

Abstract

A printed circuit board includes a ground layer including a ground pattern, a pattern layer disposed on the ground layer and including a plurality of signal patterns, and a shielding layer disposed on the pattern layer and overlapping the signal patterns.

First claim

What is claimed is:

1 . A printed circuit board comprising:
a ground layer comprising a ground pattern; a pattern layer disposed on the ground layer and comprising a plurality of signal patterns; and a shielding layer disposed on the pattern layer and overlapping the signal patterns.

2 . The printed circuit board of claim 1 , further comprising:
a first insulating layer disposed between the ground layer and the pattern layer; and a second insulating layer disposed between the pattern layer and the shielding layer.

3 . The printed circuit board of claim 1 , wherein the pattern layer further comprises a signal ground pattern disposed to be insulated from the signal patterns.

4 . The printed circuit board of claim 1 , wherein the shielding layer comprises a protective ground pattern that overlaps with the signal patterns.

5 . The printed circuit board of claim 1 , further comprising a timing controller disposed on the pattern layer and electrically connected to the signal patterns.

6 . The printed circuit board of claim 5 , wherein the signal patterns comprise first signal patterns and second signal patterns, and the timing controller is electrically connected to the first and second signal patterns.

7 . The printed circuit board of claim 6 , wherein the timing controller outputs a plurality of image signals and a plurality of driving signals, which are used to display an image, through the first signal patterns.

8 . The printed circuit board of claim 6 , wherein the timing controller receives a plurality of control signals and a plurality of image data from the outside thereof through the second signal patterns.

9 . A display device comprising:
a display panel displaying an image; a data driver electrically connected to the display panel and outputs a plurality of data voltages to display the image; and a printed circuit board generating a plurality of image signals corresponding to the data voltages and a plurality of driving signals, the printed circuit board comprising: a ground layer comprising a ground pattern; a pattern layer disposed on the ground layer and comprising a plurality of signal patterns; and a shielding layer disposed on the pattern layer and overlapping the signal patterns.

10 . The display device of claim 9 , wherein the data driver is electrically connected to the signal patterns disposed on the pattern layer.

11 . The display device of claim 9 , wherein the shielding layer comprises a protective ground pattern that overlaps with the signal patterns.

12 . The display device of claim 9 , wherein the printed circuit board further comprises a timing controller to generate the image signals and the driving signals, and the timing controller is disposed on the pattern layer.

13 . The display device of claim 12 , wherein the timing controller is electrically connected to the signal patterns and applies the image signals and the driving signals to the signal patterns.

14 . The display device of claim 13 , wherein the timing controller applies the image signals and the driving signals to the signal patterns based on a differential signal.

15 . The display device of claim 9 , wherein the pattern layer further comprises a signal protective pattern insulated from the signal patterns.

Assignees

• Samsung Display Co Ltd

Inventors

• Go Jeonghun
• Kim Youngsun
• Choi Siyoung

Classifications

• G09G3/20 Primary

  for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix {no fixed position being assigned to or needed to be assigned to the individual characters or partial characters} · CPC title

• H05K1/0224 Primary

  Patterned shielding planes, ground planes or power planes (H05K1/0253 takes precedence) · CPC title

• G09G5/00 Primary

  Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators (image data processing or generation, in general G06T) · CPC title

• G09G2330/06

  Handling electromagnetic interferences [EMI], covering emitted as well as received electromagnetic radiation · CPC title

• G09G2300/023

  Display panel composed of stacked panels · CPC title