Display device
A display device includes an input portion receiving a signal input, and including a transmission board transmitting the signal input; and a display portion rotatably connected to the input portion, and including a reception board receiving the signal from the transmission board, and a display panel displaying the signal received by the reception board, wherein one of the reception and transmission boards includes: a plurality of antenna pattern groups each including a plurality of first antenna patterns that transmit or receive respective signals, and arranged at rotationally symmetric positions; and a signal line connecting in series the corresponding first antenna patterns of the plurality of antenna pattern groups, and wherein the other of the reception and transmission boards includes a plurality of second antenna patterns that are arranged at a position facing one antenna pattern group among the plurality of antenna pattern groups, and that receive or transmit respective signals.
1 . A display device, comprising:
an input portion which receives a signal input and includes a transmission board transmitting the signal input; and
a display portion which is rotatably connected to the input portion and includes a reception board receiving the signal transmitted from the transmission board, and a display panel displaying the signal received by the reception board,
wherein one of the transmission board and the reception board includes:
a plurality of antenna pattern groups formed on a first surface of the one of the transmission board and the reception board, each antenna pattern group including a plurality of first antenna patterns that transmit or receive respective signals, the plurality of antenna pattern groups arranged at rotationally symmetric positions;
a signal line which is formed on a second surface that is opposite to the first surface, which connects in series corresponding first antenna patterns in different antenna pattern groups among the plurality of antenna pattern groups, wherein the corresponding first antenna patterns that are connected in series are arranged to be rotationally symmetric, and
wherein another of the transmission board and the reception board includes a plurality of second antenna patterns that are arranged at a position facing one antenna pattern group among the plurality of antenna pattern groups, and that receive or transmit respective signals.
2 . The display device of claim 1 , wherein the first antenna patterns, corresponding to each other, of the plurality of antenna pattern groups are equidistant from a center of the one of the transmission board and the reception board.
3 . The display device of claim 1 , wherein the one of the transmission board and the reception board has a size equal to that of the another of the transmission board and the reception board.
4 . The display device of claim 1 , wherein the signal line penetrates the one of the transmission board and the reception board from the second surface to the first surface to be connected to the plurality of first antenna patterns.
5 . The display device of claim 1 , wherein each of the plurality of antenna pattern groups includes the plurality of first antenna patterns arranged radially with respect to a center of the first surface.
6 . The display device of claim 5 , wherein the plurality of second antenna patterns are arranged radially with respect to a center of the another of the transmission board and the reception board.
7 . The display device of claim 1 , wherein the another of the transmission board and the reception board includes an insulating region arranged at a position facing one or more antenna pattern groups other than the one antenna pattern group among the plurality of antenna pattern groups.
8 . The display device of claim 7 , wherein the insulating region is a region where a substrate of the another of the transmission board and the reception board is exposed at least in part.
9 . The display device of claim 7 , wherein a metal ground pattern is disposed in a mesh shape on a portion of the insulating region.
10 . The display device of claim 7 , wherein the insulating region is a through hole formed by digging out a substrate of the another of the transmission board and the reception board.
11 . The display device of claim 1 , wherein the one of the transmission board and the reception board includes a termination resistor connected to an end of the signal line.
12 . The display device of claim 1 , further comprising:
a shaft member which allows the transmission board and the reception board to face each other and rotatably connects the transmission board and the reception board; and
a position adjustment member which fixes the transmission board and the reception board at a position that rotates at a predetermined angle, and adjusts positions of the transmission board and the reception board.
13 . The display device of claim 1 , wherein the one of the transmission board and the reception board includes a third antenna pattern having a circular shape in a region surrounded by the plurality of antenna pattern groups, and
wherein the another of the transmission board and the reception board includes a fourth antenna pattern having a circular shape at a position facing the third antenna pattern.
14 . The display device of claim 1 , wherein a number of the plurality of first antenna patterns is equal to a number of the plurality of second antenna patterns.
15 . The display device of claim 1 , wherein the signal line includes a plurality of line segments arranged to be rotationally symmetric.