Circuit board and display device including the same
AssigneeSamsung Display Co., Ltd.
InventorsMin-Hong Kim, Hyun-Wook Cho, Taejoon Kim, Jaehyun Park, Jungmok Park, Bogeun Yuk
Life of this patent
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Abstract
A circuit board includes a base substrate, and a connection structure disposed on the base substrate, and connected to the base substrate by an accessing part. The connection structure includes a first connection electrode, a second connection electrode disposed in a same layer as the first connection electrode, a third connection electrode connected to the first connection electrode on the first connection electrode, and a fourth connection electrode connected to the second connection electrode on the second connection electrode, and disposed in a same layer as the third connection electrode.
Claims16
A circuit board comprising:
- a base substrate separate from and configured to connect to a display panel;
- and
- a connection structure disposed on the base substrate, and connected to the base substrate by an accessing part, the connection structure including:
- a first connection electrode disposed in a first layer;
- a second connection electrode disposed in the first layer;
- a third connection electrode connected to the first connection electrode and disposed on the first connection electrode, and disposed in a second layer;
- a fourth connection electrode connected to the second connection electrode and disposed on the second connection electrode, and disposed in the second layer, and
- a signal electrode disposed in the first layer,
- wherein the signal electrode is connected to a signal line, which transmits a signal from the base substrate to the display panel to display an image on the display panel,
- wherein the display panel includes a touch sensing layer disposed thereon,
- wherein the touch sensing layer is connected to the first connection electrode by a first touch line, and is connected to the second connection electrode by a second touch line, and
- wherein at least one of the first touch line and the second touch line includes a resistance value increasing portion, and the resistance value increasing portion has a meander shape.
A display device comprising:
- a display structure;
- and
- a circuit board separate from and connected to the display structure, the circuit board including:
- a base substrate;
- and
- a connection structure disposed on the base substrate, and connected to the base substrate by an accessing part, the connection structure including:
- a first connection electrode disposed in a first layer;
- a second connection electrode disposed in the first layer;
- a third connection electrode connected to the first connection electrode and disposed on the first connection electrode, and disposed in a second layer;
- a fourth connection electrode connected to the second connection electrode and disposed on the second connection electrode, and disposed in the second layer, and
- a signal electrode disposed in the first layer,
- wherein the signal electrode is connected to the display structure to display an image,
- wherein the display structure further includes:
- a display substrate including a display area and a non-display area surrounding the display area;
- a display panel disposed on the display substrate;
- and
- a touch sensing layer disposed on the display panel, and including a sensor electrode,
- wherein the touch sensing layer is connected to the first connection electrode by a first touch line, and is connected to the second connection electrode by a second touch line, and
- wherein at least one of the first touch line and the second touch line includes a resistance value increasing portion, and the resistance value increasing portion has a meander shape.
Dependencies are inferred from the claim text.