COMPUTER BACKLIGHT UNIT (BLU) ATTACHMENT TO COVER GLASS/CELL
    1.
    发明申请
    COMPUTER BACKLIGHT UNIT (BLU) ATTACHMENT TO COVER GLASS/CELL 审中-公开
    计算机背光单元(BLU)附着到盖玻璃/细胞

    公开(公告)号:WO2014051924A1

    公开(公告)日:2014-04-03

    申请号:PCT/US2013/057174

    申请日:2013-08-28

    Applicant: APPLE INC.

    Abstract: 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.

    Abstract translation: 所描述的实施例一般涉及包括液晶显示器(LCD)的计算设备,更具体地涉及用于将背光组件附着到覆盖玻璃层的方法,同时使通过盖玻璃层传递到LCD模块的应力的量最小化。 可以使用连续且顺从的泡沫粘合剂将覆盖玻璃层粘合到背光组件。 柔性粘合剂可以吸收和分布由各种结构和覆盖玻璃层之间的结构载荷,不匹配表面和不同热膨胀率引起的局部应力集中。 这可以降低玻璃层中的应力集中,从而导致液晶显示单元中的应力引起的双折射。 在另一个实施例中,一系列刚性板可以结合到覆盖玻璃层并附着到背光组件上。 由于刚性板的弹性,从背光组件施加的点载荷可以分布在更大的面积上。

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