LIQUID CRYSTAL DEVICE

• US 20080238883A1
• Filed: 03/27/2008
• Published: 10/02/2008
• Est. Priority Date: 03/28/2007
• Status: Abandoned Application

• Current Assignee: Takashi Akiyama
• Original Assignee: Takashi Akiyama
• Inventors: Akiyama, Takashi
• Application Number:
  US12/057,229
• Publication Number:
  US 20080238883A1
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/134327 Segmented, e.g. alpha numeric display
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/044 by capacitive means

Abstract

An object of the invention is to provide a liquid crystal device that can produce a display and allow data input thereon with a simple configuration. The liquid crystal device includes a liquid crystal layer provided between first and second substrates, and a capacitive sensor electrode, which is not provided with a counter electrode, and a segment electrode for driving a liquid crystal, both formed on the first or second substrate at a side thereof that faces the liquid crystal layer.

Claims

1. A liquid crystal device comprising:

a liquid crystal layer provided between first and second substrates; and

a capacitive sensor electrode, which is not provided with a counter electrode, and a segment electrode for driving a liquid crystal, both formed on said first or second substrate at a side thereof that faces said liquid crystal layer.

2. The liquid crystal device according to claim 1, wherein said capacitive sensor electrode is disposed around said segment electrode.

3. The liquid crystal device according to claim 1, wherein said counter electrode is held in a floating state.

4. The liquid crystal device according to claim 1, wherein said capacitive sensor electrode and said segment electrode are formed on said first substrate or said second substrate, whichever is located on a viewer side.

5. The liquid crystal device according to claim 1, wherein said segment electrode and said capacitive sensor electrode are formed in a touch area within said liquid crystal device.

6. The liquid crystal device according to claim 1, wherein said capacitive sensor electrode is formed larger in area than said segment electrode.

7. The liquid crystal device according to claim 1, further comprising an erroneous detection prevention wiring line connected to said capacitive sensor electrode.

8. The liquid crystal device according to claim 1, further comprising a plurality of capacitive sensor electrodes and a plurality of wiring lines connected to said plurality of capacitive sensor electrodes, and wherein said plurality of wring lines are arranged one adjacent to another.

9. The liquid crystal device according to claim 1, wherein said segment electrode is an electrode for passive driving.

10. The liquid crystal device according to claim 1, wherein said first or second substrate is a flexible substrate.

11. The liquid crystal device according to claim 1, wherein a voltage for said capacitive sensor electrode is set smaller than a voltage applied to said liquid crystal layer.