Method of manufacturing display device having detection wires with varied resistance values
A display device includes a display panel, an input sensor, and a circuit board. The input sensor includes first detection electrodes arranged in a first direction, second detection electrodes arranged in a second direction, first detection wires respectively electrically connected to the first detection electrodes, and second detection wires respectively electrically connected to the second detection electrodes. Resistance values of the first detection wires decrease as a corresponding first detection electrode among the first detection electrodes is disposed closer to a center of the display panel. Resistance values of the second detection wires increase as a corresponding second detection electrode among the second detection electrodes moves away from the circuit board, and a difference between the resistance values of the second detection wires adjacent to each other increases as the corresponding second detection electrode moves away from the circuit board.
1 . A method for manufacturing a display device, the method comprising:
measuring a level of noise from a reference input sensor using a reference display device including a display panel and the reference input sensor disposed on the display panel; and
forming a display device including the display panel and an input sensor including first detection electrodes arranged in a first direction, second detection electrodes arranged in a second direction crossing the first direction, first detection wires respectively electrically connected to the first detection electrodes, and second detection wires respectively electrically connected to the second detection electrodes and disposed on the display panel,
wherein the forming of the display device comprises:
setting resistances of the first detection wires based on the measured level of noise;
setting resistances of the second detection wires based on the measured level of noise; and
forming the input sensor on the display panel.
2 . The method of claim 1 , wherein resistance values of the first detection wires decrease as a corresponding first detection electrode among the first detection electrodes is disposed further towards a center of the display panel.
3 . The method of claim 1 , wherein the display device further comprises a circuit board disposed adjacent to an end of the display panel extending in the first direction and electrically connected to the first and second detection wires,
wherein resistance values of the second detection wires increase as a corresponding second detection electrode, among the second detection electrodes, moves away from the circuit board, and a difference between the resistance values of neighboring members of the second detection wires increases as the corresponding second detection electrode moves away from the circuit board.
4 . The method of claim 1 , wherein the reference display device further comprises a circuit board disposed adjacent to an end of the display panel extending in the first direction,
wherein the reference input sensor comprises:
first reference detection electrodes arranged in the first direction;
second reference detection electrodes arranged in the second direction;
first reference detection wires respectively electrically connected to the first reference detection electrodes; and
second reference detection wires respectively electrically connected to the second reference detection electrodes,
wherein resistance values of the first reference detection wires are substantially the same as one another, and
wherein resistance values of the second reference detection wires respectively electrically connected to the second reference detection electrodes arranged in a direction away from the circuit board increase at a constant rate.
5 . The method of claim 4 , wherein noise generated in the first reference detection wires increases as a corresponding first reference detection electrode among the first reference detection electrodes is disposed further towards a center of the display panel.
6 . The method of claim 4 , wherein the setting of the resistance values of the first detection wires comprises setting a tendency of resistance values of the first detection wires based on a tendency of noise generated in the first reference detection wires.
7 . The method of claim 4 , wherein noise generated in the second reference detection wires increases as a corresponding second reference detection electrode, among the second reference detection electrodes, moves away from the circuit board,
wherein a noise increase rate between adjacent second reference detection wires decreases as a corresponding second reference detection electrode moves away from the circuit board.
8 . The method of claim 4 , wherein the setting of the resistance values of the second detection wires comprises setting a tendency of resistance values of the second detection wires based on a tendency of noise generated in the second reference detection wires.
9 . The method of claim 4 , wherein the measuring of the noise in the reference input sensor comprises measuring a voltage change of each of the first reference detection wires and the second reference detection wires.
10 . The method of claim 4 , wherein the forming of the input sensor comprises:
controlling a length or width of each of the first detection wires based on a length and width of each of the first reference detection wires to form the first detection wires, each having a set resistance; and
controlling a length or width of each of the second detection wires based on a length and width of each of the second reference detection wires to form the second detection wires, each having a set resistance.