Display panel module and method for manufacturing the same
AssigneeFujitsu Hitachi Plasma Display Limited
InventorsNobuyuki Hori, Yoshimi Kawanami
Life of this patent
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Abstract
A method for manufacturing a display panel module is provided by which production costs are reduced. A method is provided for manufacturing a display panel module that includes a display panel, a functional film and a drive circuit board. The method includes attaching the drive circuit board to the display panel, conducting a lighting test of the display panel using the drive circuit board to confirm that the display panel is an acceptable product, and bonding the functional film to a front face of the display panel. In the bonding process, an adhesive layer having a thickness equal to or more than 200 microns is interposed between the front face of the display panel and the functional film.
Claims14
A method for manufacturing a display panel module including a display panel, a functional film that is bonded to a front face of the display panel, and a drive circuit board that is attached to a rear face of the display panel, the method comprising the steps of:
- attaching the drive circuit board to the display panel;
- conducting a lighting test of the display panel using the drive circuit board to confirm that the display panel is an acceptable product;
- interposing an adhesive layer having a thickness equal to or more than 200 microns between the front face of the display panel and the functional film;
- and
- bonding the functional film to the display panel.
A display panel module comprising:
- a display panel;
- a functional film that is bonded to a front face of the display panel;
- a drive circuit board that is attached to a rear face of the display panel;
- and
- an adhesive layer for bonding the functional film to the front face of the display panel, the adhesive layer having a thickness equal to or more than 200 microns,
- wherein a difference between a dimension of dust and a dimension of a void that appears around the dust is smaller than 100 microns, the dust adhering to the front face of the display panel and being covered by the adhesive layer.
A display panel module comprising:
- a display panel;
- a functional film that is bonded to a front face of the display panel;
- a drive circuit board that is attached to a rear face of the display panel;
- and
- an adhesive layer for bonding the functional film to the front face of the display panel, the adhesive layer having a thickness equal to or more than 200 microns,
- wherein the adhesive layer has peel strength equal to or less than 10N/25 mm for the display panel.
A display panel module comprising:
- a display panel;
- a drive circuit board that is mounted on a rear face of the display panel;
- and
- a functional sheet that is bonded to a front face of the display panel,
- wherein
- the functional sheet has a multilayered structure including an optical film having an optical filter function and an EMI shield film having an electromagnetic wave shielding function,
- the functional sheet includes an adhesive layer on its surface to which the display panel is bonded, and
- the adhesive layer is made of a transparent adhesive soft material and has foreign matter coverability in which, when the functional sheet is bonded to a glass plate with a glass bead being placed on an adhesive interface, the glass bead having a diameter of 50 microns, a ratio between a diameter of a void that appears around the glass bead and a diameter of the glass bead is equal to or less than 2.0.
A display panel module comprising:
- a display panel;
- a drive circuit board that is mounted on a rear face of the display panel;
- and
- a functional sheet that has an optical filter function and is bonded to a front face of the display panel,
- wherein
- the functional sheet is peelably bonded to the front face of the display panel through an adhesive layer that is previously provided on one surface of the functional sheet, and
- the adhesive layer is made of transparent adhesive soft resin that has foreign matter coverability in which, when the adhesive layer is bonded to a predetermined glass plate with a glass bead being interposed in an adhesive interface, the glass bead having a diameter of 50 microns, a ratio between a diameter of a void that appears around the glass bead and a diameter of the glass bead is equal to or less than 2.0.
Dependencies are inferred from the claim text.