| 摘要 |
In a liquid crystal display device, a plurality of first light absorptive resin layer patterns, a plurality of metal layer patterns, a plurality of second light absorptive resin layer patterns, a transparent resin layer, and a plurality of transparent electrode patterns are laminated in this order on a surface of a first transparent substrate facing a liquid crystal layer; the plurality of the first light absorptive resin layer patterns, the plurality of the metal layer patterns, and the plurality of the second light absorptive resin layer patterns have openings formed therein, and are formed into the same shape when viewed in a laminating direction; the plurality of the metal layer patterns are arrayed in a first direction, being insulated from each other, the plurality of the transparent electrode patterns are arrayed in a second direction perpendicular to the first direction, being insulated from each other. |
| 主权项 |
1. A liquid crystal display device comprising:
a display unit that has a display substrate, a liquid crystal layer, and an array substrate laminated therein in this order; and a control unit that controls the display unit and a touch sensing function, wherein the display substrate has a first transparent substrate, and has a plurality of first light absorptive resin layer patterns having openings formed therein, a plurality of metal layer patterns having openings formed therein, a plurality of second light absorptive resin layer patterns having openings formed therein, a transparent resin layer, and a plurality of transparent electrode patterns that are electrically isolated, laminated in this order on a surface of the first transparent substrate, the surface of the first transparent substrate facing the liquid crystal layer, the plurality of first light absorptive resin layer patterns, the plurality of metal layer patterns, and the plurality of second light absorptive resin layer patterns are formed into the same shape and are in alignment, when viewed in a laminating direction along which the display substrate, the liquid crystal layer, and the array substrate are laminated, the plurality of metal layer patterns are arrayed in a first direction perpendicular to the laminating direction, being insulated from each other, the plurality of transparent electrode patterns are arrayed in a second direction perpendicular to the laminating direction and the first direction, being insulated from each other, each metal layer pattern has at least one of an alloy layer mainly containing copper, and a copper layer, the array substrate has a second transparent substrate, and has a pixel electrode, a thin film transistor, a metal wiring, and a plurality of insulating layers provided on a surface of the second transparent substrate, the surface of the second transparent substrate facing the liquid crystal layer, the touch sensing function at least includes setting the plurality of the transparent electrode patterns to a constant electrical potential, applying a touch driving voltage across the plurality of transparent electrode patterns and the plurality of metal layer patterns, and detecting a change in electrostatic capacitance across the metal layer patterns and the transparent electrode patterns, and when the liquid crystal layer is driven, the plurality of transparent electrode patterns are set to a constant electrical potential, a liquid crystal driving voltage is applied across the plurality of transparent electrode patterns and the pixel electrode to drive the liquid crystal layer, and a frequency of the touch driving voltage is different from that of the liquid crystal driving voltage. |
