Method and apparatus for bonding outer leads of a liquid crystal display to metal leads of a bonding tape
AssigneeIndustrial Technology Research Institute
InventorsSan-Wen Chang, Pao-Yun Tang, Shyuan-Jeng Ho
Life of this patent
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Abstract
There is shown an apparatus for bonding outer leads of a display panel to metal leads of a bonding tape that includes a movable stage for supporting the display panel. A light source is provided on the stage that is positioned beneath the outer leads of the panel, when mounted on the stage. A means is provided to support the bonding tape so that the metal leads are held in overlapping position over the outer leads. A means to observe the resultant overlapped leads is located over the light source. A heat source for applying heat to the aligned leads to form bonds therebetween is provided.
Claims18
A method of aligning and bonding the closely spaced translucent electrically conductive outer leads of a Liquid Crystal Display panel to closely spaced metal leads of a bonding tape comprising:
- mounting the display panel on a movable stage;
- providing a light source beneath the outer leads of the display panel to provide back lighting;
- applying an anisotropic conductive film adhesive to the outer leads of the display panel;
- mounting the metal leads of the bonding tape over the outer leads of the display panel;
- observing the back lighted outer leads and the overlapping metal leads from above said light source and aligning the outer leads to precisely underlie the metal leads by adjusting the relative positions of the display panel and the bonding tape;
- and
- applying heat to the outer leads and the metal leads to bond and form electrical connections therebetween.
An apparatus to bond closely spaced translucent electrically conductive outer leads of a Liquid Crystal Display panel to closely spaced metal leads of a bonding tape comprising;
- a stage to support said display panel provided with a means to move the stage in the X, Y, Z and theta (angular) directions;
- a means to secure said display panel to said stage;
- a light source on said stage that is located within a narrow groove in said stage beneath the outer leads of a display panel mounted on said stage;
- a means to support a bonding tape in close proximity to said stage so that the metal leads are positioned in overlapping relation to said outer leads;
- a means to observe the resultant back lighted outer leads and overlapping metal leads from a position above said light source;
- a means to adjust the relative position of said outer leads and said metal leads to achieve alignment thereof;
- and
- a heat source to bond the resultant aligned outer leads and metal leads.
Dependencies are inferred from the claim text.