Display device

A display device comprising:

• a display panel;
• a first substrate connected to the display panel;
• a second substrate connected to the display panel and the first substrate;
• and
• a main circuit board electrically connected to the first substrate,
• wherein the first substrate comprises:
• a first base substrate;
• a first wiring layer having a plurality of first signal wirings on the first base substrate;
• a first ground wiring layer on the first wiring layer, and
• a second wiring layer having a plurality of second signal wirings on the first ground wiring layer,
• wherein the first ground wiring layer comprises a mesh pattern area and a non-mesh pattern area, wherein the mesh pattern area comprises a plurality of first mesh patterns and openings surrounded by adjacent first mesh patterns, and the non-mesh pattern area comprises a plurality of second mesh patterns and non-mesh patterns surrounded by adjacent second mesh patterns, wherein the non-mesh patterns are physically connected to the adjacent second mesh patterns,
• wherein the first signal wirings extend along a first direction, and the second signal wirings extend along a second direction intersecting the first direction,
• wherein the second substrate comprises a driver chip,
• wherein the first signal wirings are configured to receive transmission signals from the main circuit board,
• wherein the transmission signals comprise image signals or timing control signals, and the first signal wirings are electrically connected to the driver chip.