Advanced Imaging


Advanced Imaging Magazine

Updated: January 12th, 2011 10:01 AM CDT

The Direct Approach

Once used in specialized applications, direct bonding has gone mainstream
Figure 1
© DuPont Display Enhancements
Figure 1: Traditional coverplates experience issues with parallax and scratching. The thin air gap also creates multiple surfaces with high reflectivity making the display extremely susceptible to condensation.
Figure 2
© DuPont Display Enhancements
Figure 2: By optically bonding an anti-reflective glass, plastic or touch sensor directly to the front of an LCD display, Vertakô bonding technology eliminates the air gap between the reflective surfaces of the cover glass and display.
Figure 3
© DuPont Display Enhancements
Figure 3: With in-frame bonding, the cover glass is bonded to the LCD area only, inside the frame of the original LCD. There is no mechanical link to the frame of the LCD and the LCD must be mounted via the mounting holes of the OEM panel.
Figure 4
© DuPont Display Enhancements
Figure 4: In on-frame bonding, the cover glass can be used as a mounting surface. This is the preferred method for bonding cover glass to LCD modules.

By William Bandel, DuPont Display Enhancements

William Bandel is Global Business Director for DuPont Display Enhancements under the DuPont Imaging Technologies strategic business unit in Torrance, Calif. He joined DuPont in 2001.

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