Liquid crystal display device
A liquid crystal display device including a liquid crystal display panel, a back light and a light control panel set between the liquid crystal panel and the back light comprising: the light control panel comprises a first substrate, a second substrate and a liquid crystal layer between the first substrate and the second substrate, wherein a plurality of first signal wirings 11 , an insulating film, and a first electrode of plenary shape are formed in this order on the first substrate, the signal wiring 11 is made of a first transparent conductive film, the first electrode is made of a second transparent conductive film, the second electrode is made of a third transparent conductive film, a dummy wiring 50 made of a same material as the first transparent conductive film is formed on a layer that the signal wirings 11 are formed.
1. A liquid crystal display device including a liquid crystal display panel, a back light and a light control panel set between the liquid crystal panel and the back light comprising:
the light control panel comprises a first substrate, a second substrate and a liquid crystal layer between the first substrate and the second substrate,
wherein a plurality of signal wirings, an insulating film covering the signal wirings, a first electrode formed in a planar shape on the insulating film, an interlayer insulating film covering the first electrode, and a second electrode on the interlayer insulating film are formed on a surface facing to the liquid crystal layer of the first substrate,
the signal wiring and the first electrode are connected via a through hole formed in the insulating film,
the signal wiring is made of a first transparent conductive film, the first electrode is made of a second transparent conductive film, the second electrode is made of a third transparent conductive film,
a dummy wiring made of a same material as the first transparent conductive film is formed on a layer that the signal wirings are formed, and
the second electrode is between the signal wirings in a plan view.
2. The liquid crystal display device according to claim 1 ,
wherein the signal wirings and the second electrode extend in a same direction.
3. The liquid crystal display device according to claim 2 ,
wherein a sheet resistance of the first electrode is in an order of 10 4 ohm/square.
4. The liquid crystal display device according to claim 1 ,
wherein the signal wiring is made of ITO, the first electrode is made of AZO or IZO or oxide semiconductor, and the second electrode is made of ITO.
5. The liquid crystal display device according to claim 1 ,
wherein the insulating film is made of silicon oxide, and
the interlayer insulating film is made of silicon nitride or silicon oxide.
6. The liquid crystal display device according to claim 1 ,
wherein the liquid crystal display device is an IPS mode liquid crystal display device.