Display device and method for producing display device
View Patent ↗A display device includes a display, a protective layer, and a bonding layer. The display has a polarizing plate configuring an image display plane of a display. The protective layer faces the polarizing plate. The bonding layer is disposed between the polarizing plate and the protective layer and is directly bonded to the polarizing plate and the protective layer. The bonding layer contains a hygroscopic agent.
1. A display device comprising:
a display having a polarizing plate configuring an image display plane of the display;
a protective layer facing the polarizing plate; and
a bonding layer disposed between the polarizing plate and the protective layer and directly bonded to the polarizing plate and the protective layer,
wherein the bonding layer includes a translucent adhesive and a plurality of particles of a hygroscopic agent dispersed in the translucent adhesive, and
wherein a maximum particle diameter of the hygroscopic agent is smaller than a width of a subpixel contained in a pixel of the display.
2. The display device according to claim 1 ,
wherein a volume of the hygroscopic agent contained in a unit volume of the bonding layer is larger in a region closer to the polarizing plate in the bonding layer than in a region closer to the protective layer in the bonding layer.
3. The display device according to claim 1 ,
wherein the hygroscopic agent overlaps a wiring between pixels of the display in planar view, and
the maximum particle diameter of the hygroscopic agent is smaller than a width of the wiring.
4. The display device according to claim 1 ,
wherein the bonding layer is provided with a vent hole.
5. A method for producing a display device, the method comprising:
applying a translucent adhesive containing a hygroscopic agent onto a surface of a polarizing plate configuring an image display plane of a display;
sandwiching the applied translucent adhesive between the polarizing plate and a protective layer so as to bond the protective layer to the polarizing plate; and
hardening the translucent adhesive sandwiched between the polarizing plate and the protective layer.
6. A method for producing a display device, the method comprising:
disposing a mask on a surface of a polarizing plate configuring an image display plane of a display, the mask having a plurality of openings, and the surface being to face a user when the display device is used;
filling the plurality of openings of the mask on the polarizing plate with a hygroscopic agent;
removing the mask from the surface of the polarizing plate;
applying a translucent adhesive onto the surface of the polarizing plate from which the mask has been removed and the hygroscopic agent left on the surface of the polarizing plate;
sandwiching the applied translucent adhesive between the polarizing plate and a protective layer so as to bond the protective layer to the polarizing plate; and
hardening the translucent adhesive sandwiched between the polarizing plate and the protective layer.
7. The display device according to claim 1 ,
wherein the plurality of particles of the hygroscopic agent are dispersed irregularly over an entire region of the polarizing plate.