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Shaping a cover glass

一种盖玻片、触摸传感器的技术，应用在仪器、计算、电数字数据处理等方向

Active Publication Date: 2009-08-26
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another reason is the cost of flexible circuit fabrication and the bonding required to connect the two sides of the substrate

Method used

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  • Shaping a cover glass
  • Shaping a cover glass
  • Shaping a cover glass

Examples

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Embodiment Construction

[0021] In the following description of the preferred embodiments, reference is made to the accompanying drawings which form a part hereof, and in which are shown by way of illustration specific embodiments in which the invention may be practiced. It is to be understood that other embodiments may be utilized and structural changes may be made without departing from the scope of the embodiments of this invention.

[0022] This specification relates to the fabrication of touch sensor panels having touch sensors formed on a substrate. From a manufacturing perspective, it may be desirable to perform all touch sensor processing steps on a single substrate board before dividing the substrate board into separate parts with rounded corners (in the absence of bezels). In order to perform touch sensor processing on the substrate board prior to separation, a removable sacrificial layer such as photoresist may be applied over the thin film layer. Next, the parts can be cut and fractured t...

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Abstract

The fabrication of a touch sensor panel having co-planar single-layer touch sensors fabricated on the back side of a cover glass is disclosed. It can be desirable from a manufacturing perspective to perform all thin-film processing steps on a motherglass before separating it into separate parts. To perform thin-film processing on a motherglass before separation, a removable sacrificial layer such as a photoresist can be applied over the thin-film layers. Next, the motherglass can be scribed and separated, and grinding and polishing steps can be performed prior to removing the sacrificial layer. In alternative embodiments, after the protective sacrificial layer is applied, the bulk of the coverglass can be dry-etched using a very aggressive anisotropic etching that etches primarily in the z-direction. In this embodiment, the etching can be patterned using photolithography to create rounded corners or any other shape. The photoresist can then be removed.

Description

technical field [0001] The present invention relates generally to input devices for computing systems, and more particularly to the fabrication of touch sensor panels on the backside of a cover glass. Background technique [0002] There are many types of input devices currently available for performing operations in computing systems, such as buttons or keys, mice, trackballs, touch sensor panels, joysticks, touch screens, and the like. Touch screens, in particular, are becoming more and more popular due to their ease of operation and versatility of operation, as well as their ever-decreasing prices. A touch screen may include a touch sensor panel, which may be a clear panel with a touch sensitive surface. The touch sensor panel can be positioned in front of the display screen such that the touch sensitive surface covers the viewable area of ​​the display screen. A touch screen may allow a user to make selections and move a cursor simply by touching the display screen with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
CPCG06F3/044G06F3/0448G06F3/0443
Inventor S·P·霍特林钟志国J·E·克拉一多
Owner APPLE INC
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