Display device
View Patent ↗Provided is a display device including a touch panel, the display device having a function of being suppressed from being charged with electricity. A display device including a touch panel includes a detection electrode of the touch panel, the detection electrode being provided on one surface of a display cell; a protective layer covering the detection electrode; and an optical film bonded to the protective layer, the optical film having an external shape smaller than that of the protective layer. The protective layer may be a single layer substantially formed of a conductive polymer and an insulating material, or may have a stack structure including an insulating layer and a conductive layer.
1. A display device including a touch panel, comprising:
a detection electrode of the touch panel, the detection electrode being provided on one surface of a display cell;
a protective layer covering the detection electrode; and
an optical film bonded to the protective layer, the optical film having an external shape smaller than that of the protective layer, wherein
the detection electrode is connected with a terminal electrode, a part of the terminal electrode having a meshed portion,
an end of the protective layer is in contact with the meshed portion,
the protective layer is extended to cover only a part of the meshed portion, and
the meshed portion stops the expansion of the protective layer.
2. The display device according to claim 1 , wherein the protective layer is substantially formed of a conductive polymer and an insulating material.
3. The display device according to claim 2 , wherein the protective layer has a higher concentration of the conductive polymer in an upper portion thereof than in a lower portion thereof.
4. The display device according to claim 2 , wherein the protective layer has a sheet resistance of 1×10 9 to 1×10 12 [Ω/square].
5. The display device according to claim 1 , wherein the protective layer includes an insulating layer covering the detection electrode and a conductive layer covering the insulating layer.
6. The display device according to claim 5 , wherein:
the insulating layer is formed of a first resin; and
the conductive layer is formed of a second resin containing a conductive polymer.
7. The display device according to claim 5 , wherein the conductive layer has an external shape larger than that of the insulating layer.