Resistive touch panel

• US 10,521,066 B2
• Filed: 07/28/2016
• Issued: 12/31/2019
• Est. Priority Date: 07/31/2015
• Status: Active Grant

• Current Assignee: Fanuc Corporation
• Original Assignee: Fanuc Corporation
• Inventors: Terao, Yuuki
• Primary Examiner(s): Shen, Yuzhen
• Application Number:
  US15/221,659
• Publication Number:
  US 20170031483A1
• Time in Patent Office: 1,251 Days
• Field of Search: 345174
• CPC Class Codes: G06F 3/045 using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact

Abstract

The invention provides a touch panel including: two resistive layers; a plurality of spacer dots disposed between the two resistive layers, the spacer dots spacing the two resistive layers apart from each other, the two resistive layers facing each other; and a glass panel bonded to an underside of one of the resistive layers to provide support, the one of the resistive layers positioned opposite from a touch surface, wherein one side of the glass panel has at least one region including a material having a modulus of elasticity different from a modulus of elasticity of the glass panel, the one side of the glass panel being adjacent to the one of the resistive layers. With this configuration, the touch sensitivity in the at least one region is differentiated from that of the remaining regions.

Claims

1. A resistive touch panel, comprising:

two resistive layers;

a plurality of spacer dots disposed between the two resistive layers, the spacer dots spacing the two resistive layers apart from each other, the two resistive layers facing each other; and

a glass panel bonded to an underside of one of the resistive layers to provide support, the one of the resistive layers positioned opposite from a touch surface,

wherein

one side of the glass panel has at least one region including a material having a modulus of elasticity different from a modulus of elasticity of the glass panel, the one side of the glass panel being adjacent to the one of the resistive layers,

both the two resistive layers are configured to deform in response to a pressure applied to the touch surface facing one of the resistive layers,

in response to a first pressure applied to the touch surface, both the two resistive layers deform while keeping a space between the two resistive layers defined by the plurality of spacer dots,

in response to a second pressure, which is greater than the first pressure, applied to the touch surface, both the two resistive layers deform and the two resistive layers are brought into contact with each other, and

both the two resistive layers are configured to deform in a same direction at the at least one region.

2. The resistive touch panel according to claim 1, wherein the one side of the glass panel has a plurality of regions including the material having the modulus of elasticity different from the modulus of elasticity of the glass panel.

3. The resistive touch panel according to claim 1, wherein the at least one region at the one side of the glass panel has a recessed portion and the material having the modulus of elasticity different from the modulus of elasticity of the glass panel is disposed in the recessed portion.

4. The resistive touch panel according to claim 1, wherein the at least one region at the one side of the glass panel has a through hole and a member closing a bottom of the through hole, and the material having the modulus of elasticity different from the modulus of elasticity of the glass panel is disposed in a region formed by the through hole and the member closing the bottom.

5. A resistive touch panel having a touch surface, the resistive touch panel comprising:

a first resistive layer and a second resistive layer facing the first resistive layer, the first resistive layer being closer to the touch surface than the second resistive layer;

a plurality of spacer dots disposed between the first resistive layer and the second resistive layer, the spacer dots spacing the first and second resistive layers apart from each other; and

a glass panel bonded to the second resistive layer to provide support,

wherein

the glass panel includes at least one region including a material having a modulus of elasticity lower than a modulus of elasticity of another region of the glass panel, the at least one region of the glass panel being adjacent to the second resistive layer,

the material is disposed between the second resistive layer and the at least one region of the glass panel,

both the first and the second resistive layers are configured to deform in response to a pressure applied to the touch surface facing the first resistive layer,

the material is configured to elastically deform in response to the deformation of the second resistive layer,

in response to a first pressure applied to the touch surface, both the first and second resistive layers deform while keeping a space between the first and second resistive layers defined by the plurality of spacer dots,

in response to a second pressure, which is greater than the first pressure, applied to the touch surface, both the first and second resistive layers deform and the first and second resistive layers are brought into contact with each other, and

both the first and second resistive layers are configured to deform in a same direction at the at least one region.

6. The resistive touch panel of claim 5, wherein the material is gel material having transparency.