Display device with front window and manufacturing method thereof
View Patent ↗A distance between a liquid crystal display panel set on a lower support mechanism and a front window set on an upper support mechanism is accurately determined by a stopper. An ultraviolet irradiation mask is provided on the front window. A part of the ultraviolet curable resin corresponding to a transmission pattern of the ultraviolet irradiation mask is temporarily cured through ultraviolet irradiation. The temporarily adhered structure of the liquid crystal display panel and the front window is taken from an attachment device to be left standing for a predetermined time period on a tray until an area and a thickness of the ultraviolet curable resin reach respective predetermined values. The ultraviolet light is then irradiated to an entire surface of the ultraviolet curable resin to finalize the adhesion. The time for which the attachment device is occupied is short, thus improving an operation rate of the device.
1. A method of manufacturing a display device with a front window formed by adhering a front window and a display panel via an ultraviolet curable resin, comprising the steps of:
forming the ultraviolet curable resin on one of the front window and the display panel;
setting the display panel on a first support mechanism of an attachment device, and setting the front window on a second support mechanism of the attachment device so that the front window is positioned opposite the display panel;
attaching a stopper to one of the first and second support mechanisms so as to set a predetermined distance between the front window and the display panel via the ultraviolet curable resin when the stopper is moved to a position contacting the other of the first and second support mechanism;
temporarily curing a part of the ultraviolet curable resin by partially irradiating ultraviolet light to the front window and leaving the temporarily curing ultraviolet curing resin standing for a predetermined time period; and
finalizing curing of the ultraviolet curing resin by irradiating the ultraviolet light to the front window to adhere the front window and the display panel.
2. The method of manufacturing a display device with a front window according to claim 1 , wherein the temporary curing is performed by irradiating the ultraviolet light via an ultraviolet irradiation mask.
3. The method of manufacturing a display device with a front window according to claim 2 , wherein the temporarily curing and the finalizing curing are performed in atmosphere.
4. The method of manufacturing a display device with a front window according to claim 1 , wherein the stopper is attached to the one of the first and second support mechanisms so as to contact with the other of the first and second support mechanisms without contacting a surface of the front window and a surface of the display panel which are positioned opposite one another.
5. A method of manufacturing a display device with a front window formed by adhering a display module with an integrated structure of a display panel and a touch panel to a front window via an ultraviolet curable resin, comprising the steps of:
forming the ultraviolet curable resin on one of the front window and the display module;
setting the display module on a first support mechanism of an attachment device, and setting the front window on a second support mechanism of the attachment device so that the front window is positioned opposite the display module;
attaching a stopper to one of the first and second support mechanisms so as to set a predetermined distance between the front window and the display module via the ultraviolet curable resin when the stopper is moved to a position contacting the other of the first and second support mechanism;
temporarily curing a part of the ultraviolet curable resin by partially irradiating ultraviolet light to the front window and leaving the temporarily curing ultraviolet curable resin standing for a predetermined time; and
finalizing curing of the ultraviolet curing resin by irradiating the ultraviolet light to the front window to adhere the front window and the display module.
6. The method of manufacturing a display device with a front window according to claim 5 , wherein the temporary curing is performed by irradiating the ultraviolet light via an ultraviolet irradiation mask.
7. The method of manufacturing a display device with a front window according to claim 6 , wherein the temporarily curing and the finalizing curing are performed in atmosphere.
8. The method of manufacturing a display device with a front window according to claim 5 , wherein the stopper is attached to the one of the first and second support mechanisms so as to contact with the other of the first and second support mechanisms without contacting a surface of the front window and a surface of the display module which are positioned opposite one another.