Attachable/detachable display device comprising polarizing film
View Patent ↗Provided is an attachable/detachable display device comprising a polarizing film, the display device allowing a damaged window to be easily replaced, the window to be simply detached therefrom, a manufacturing process therefor to be simplified, and manufacturing unit costs therefor to be lowered, and being variously designable. The display device comprises: a touch screen; the polarizing film; the window; and an adhesiveness adjusting layer, which is on any one of the polarizing film, the touch screen and a touch screen cover layer attached to the touch screen, and is on at least one side of the polarizing film, wherein the adhesiveness adjusting layer adjusts an adhesive force of an attachable/detachable layer having an adhesive force of 0.1 gf/25 mm to 500 gf/25 mm.
1. A detachable display device including a touch screen, a polarizing film, and a window, the device comprising:
a polarizing film;
an adhesion control layer disposed on the polarizing film; and
a detachable layer disposed on the adhesion control layer, wherein the adhesion control layer is disposed between the polarizing film and the detachable layer,
wherein the adhesion control layer comprises: any one of an adhesion control pattern formed to face the detachable layer and having a variable contact angle, a fine depression-protrusion pattern formed to face the detachable layer and to which an adhesive of the detachable layer is penetrated, and a combination of the adhesion control pattern and the fine depression-protrusion pattern, thereby being able to adjust an adhesive force of the detachable layer having an adhesive force of 0.1 gf/25 mm to 500 gf/25 mm.
2. The device according to claim 1 , wherein the adhesion control pattern is divided into a first region having a first contact angle and a second region having a second contact angle larger than the first contact angle.
3. The device according to claim 2 , wherein the second region includes: any one selected from the group consisting of a fluorine-based resin, a silicone-based resin, a fluorine-based resin on a deposition layer made of titania (TiO 2 ) or silica (SiO 2 ), and a silicone-based resin on a deposition layer made of titania (TiO 2 ) or silica (SiO 2 ).
4. The device according to claim 1 , wherein the adhesion control pattern is arranged in a line shape, a lattice shape, an island shape, or a combination thereof.
5. The device according to claim 1 , wherein the fine depression-protrusion pattern includes: depressions and protrusions, a cross section of the depressions and the protrusions having an angle, a curvature or a combination thereof.
6. The device according to claim 1 , wherein the fine depression-protrusion pattern is arranged in a line shape, a lattice shape, an island shape, or a combination thereof.
7. The device according to claim 1 , wherein the fine depression-protrusion pattern is formed at an edge or ups and downs of a curved surface.