发明授权
- 专利标题: Computer backlight unit (BLU) attachment to cover glass/cell
- 专利标题(中): 计算机背光单元(BLU)附件覆盖玻璃/电池
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申请号: US13627804申请日: 2012-09-26
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公开(公告)号: US08848130B2公开(公告)日: 2014-09-30
- 发明人: Dinesh C. Mathew , Edward J. Cooper , Brett W. Degner , Keith J. Hendren , Nicholas Alan Rundle
- 申请人: Dinesh C. Mathew , Edward J. Cooper , Brett W. Degner , Keith J. Hendren , Nicholas Alan Rundle
- 代理机构: Womble Carlyle Sandridge & Rice LLP
- 主分类号: G02F1/1333
- IPC分类号: G02F1/1333 ; G02F1/1335
摘要:
The described embodiments relate generally to computing devices including liquid crystal displays (LCDs) and more particularly to methods for attaching a backlight assembly to a cover glass layer while minimizing an amount of stress transferred through the cover glass layer to the LCD module. A continuous and compliant foam adhesive can be used to bond the cover glass layer to the backlight assembly. The compliant bond can absorb and distribute local stress concentrations caused by structural loads, mismatched surfaces and differing thermal expansion rates between various structures and cover glass layer. This can reduce stress concentrations in the cover glass layer that can lead to stress induced birefringence in the LCD cell. In another embodiment, a series of rigid plates can be bonded to the cover glass layer and attached to the backlight assembly. Point loads applied from the backlight assembly can be distributed over a larger area due to the resilience of the rigid plates.
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