Patent ID: 8764930

Claim:
A method for manufacturing a flat-panel display device including a display panel having a transparent insulator substrate and a transparent protector sheet attached on the display panel to cover a viewing area of the display panel; the method comprising: applying adhesive resin onto the transparent protector sheet or onto the viewing area of the display panel; assembling the display panel and the transparent protector sheet so as to sandwich a layer of the adhesive resin; curing the adhesive resin sandwiched between the display panel and the transparent protector sheet, by applying heat or light; and setting a bi-directionally Y-shape branched line pattern within a rectangular to-be-bonded area on the transparent protector sheet or on the display panel, the display panel comprising: a first Y-shaped intersection that is an intersection of two first angle-bisector lines respectively of two first corners sandwiching a first short side of the rectangular area; two first branch lines that are line segments respectively of the two first angle-bisector lines extending between the two first corners and the first Y-shaped intersection; a second Y-shaped intersection that is an intersection of two second angle-bisector lines respectively of two second corners sandwiching a second short side of the rectangular area; two second branch lines that are line segments respectively of the two second angle-bisector lines extending between the two second corners and the second Y-shaped intersection; and a center-line segment that is a line segment of a center line of the rectangular area extending between the first and second Y-shaped intersections, wherein said applying of adhesive resin includes forming circular or ellipsoidal dot patterns of applied adhesive resin so that the dot patterns are arranged on or adjacent to the center-line segment and on the branch lines, and that the dot patterns are arranged in symmetry with respect to the center line and to a bisector perpendicular to the center line; and wherein an aspect ratio of the rectangular to-be-bonded area is in a range of 1.3 to 2.0; and each of the dot patterns on or adjacent to the center-line segment is ellipsoidal and has a major axis perpendicular to the center line of the rectangular to-be-bonded area.