A display device on a container cover includes a substrate, a driving circuit unit on the substrate, a display element unit on the driving circuit unit, a sealing member on the display element unit, and a coupling portion to a container body.
1. A display device on a container cover, comprising:
a substrate;
a driving circuit unit on the substrate;
a display element unit on the driving circuit unit;
a sealing member on the display element unit;
a coupling portion coupled to a container body; and
a sensing unit configured to measure at least one of temperature and humidity in the container body,
wherein the display device displays a state of contents assumed by using at least one piece of information about contents in the container body, a storage period, temperature, humidity and gas measured by the sensing unit, and
wherein the state of contents including freshness of food is represented by a predetermined color.
2. The display device on a container cover of claim 1 , wherein the display device displays the at least one piece of information about contents of the container body, a storage period, temperature, humidity and gas measured by the sensing unit.
3. The display device on a container cover of claim 1 , wherein the display device displays a memo input by a user.
4. The display device on a container cover of claim 1 , further comprising a coating layer on the substrate.
5. The display device on a container cover of claim 4 , wherein the coating layer comprises at least one of a water-proof coating layer and a heat-proof coating layer.
6. The display device on a container cover of claim 1 , further comprising a touch screen panel on the substrate.
7. The display device on a container cover of claim 1 , wherein the substrate and the sealing member comprise any one of glass and transparent plastic.
8. The display device on a container cover of claim 7 , wherein the transparent plastic comprises any one material selected from the group consisting of Kapton®, polyethersulphone (PES), polycarbonate (PC), polyimide (PI), polyethyleneterephthalate (PET), polyethylenenaphthalate (PEN), polyacrylate (PAR), and fiber reinforced plastic (FRP).
9. The display device on a container cover of claim 1 , wherein the driving circuit unit comprises a thin film transistor layer.
10. The display device on a container cover of claim 9 , wherein the thin film transistor layer comprises an oxide semiconductor.
11. The display device on a container cover of claim 9 , wherein the thin film transistor layer comprises a transparent electrode material.
12. The display device on a container cover of claim 11 , wherein the transparent electrode material comprises a transparent conducting oxide (TCO).
13. The display device on a container cover of claim 12 , wherein the transparent conducting oxide comprises at least one oxide selected from the group consisting of indium tin oxide (ITO), indium zinc oxide (IZO), antimony tin oxide (ATO), aluminum zinc oxide (AZO), zinc oxide (ZnO), and mixtures thereof.