Display device having levitation effect

• US 10,223,949 B2
• Filed: 12/01/2014
• Issued: 03/05/2019
• Est. Priority Date: 11/27/2014
• Status: Active Grant

• Current Assignee: Tovis Co., Ltd.
• Original Assignee: Tovis Co., Ltd.
• Inventors: Kim, Yong Beom, Kim, Joon Seog
• Primary Examiner(s): Bolotin, Dmitriy
• Application Number:
  US15/531,412
• Publication Number:
  US 20170316725A1
• Time in Patent Office: 1,555 Days
• CPC Class Codes: G03B 21/56 Projection screens
• CPC Class Codes: G06F 1/1601 Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays constructional details related to flat displays integrated in a portable computer, e.g. laptop, handheld computer G06F1/1637; constructional details related to television receivers H04N5/64
• CPC Class Codes: G06F 2203/04112 Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G09F 19/18 involving the use of optical projection means, e.g. projection of images on clouds projection apparatus per se G03B
• CPC Class Codes: G09F 9/00 Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the variable information is permanently attached to a movable support G09F11/00; abacus G06C1/00; slide-rules G06G1/00

Abstract

A display apparatus having levitation effect comprises: a panel support portion supported by one of a floor, a side wall, and a ceiling; a display panel vertically spaced apart from the panel support portion so as to display an image; a transmission panel made of a transparent material and connecting the display panel to the panel support portion such that a gap between the panel support portion and the display panel is penetrated and visible in a state in which the display panel is levitated; and a transparent electrode attached to the transmission panel and formed in a film form having electric conductivity and light transmission so as to transmit power and signals for driving the display panel from the panel support portion.

Claims

1. A display apparatus having levitation effect, comprising:

a panel support portion supported by one of a floor, a side wall, and a ceiling;

a display panel vertically spaced apart from the panel support portion so as to display an image;

a transmission panel made of a transparent material and connecting the display panel to the panel support portion such that a gap between the panel support portion and the display panel is penetrated and visible in a state in which the display panel is levitated; and

a transparent electrode attached to the transmission panel and formed in a film form having electric conductivity which transmits power and signals for driving the display panel from the panel support portion and having light transmission which is penetrated and visible for a gap between the panel support portion and the display panel.

2. The display apparatus according to claim 1, wherein the transparent electrode comprises:

a power electrode for supplying the power to the display panel; and

a signal electrode for providing the signals to the display panel.

3. The display apparatus according to claim 2, wherein one of the power electrode and the signal electrode comprises a touch pattern portion which generates and transmits a touch signal during contact.

4. The display apparatus according to claim 2, wherein the power electrode and the signal electrode are formed in a film form, and are stacked and bonded by a light transmission adhesive.

5. The display apparatus according to claim 1, wherein the transparent electrode further comprises a ground electrode for grounding the display panel.

6. The display apparatus according to claim 5, wherein the ground electrode comprises a touch pattern portion which generates and transmits a touch signal during contact.

7. The display apparatus according to claim 5, wherein the ground electrode is formed in a film form, and is stacked and bonded by a light transmission adhesive.

8. The display apparatus according to claim 1, wherein the transparent electrode further comprises a touch electrode for generating a touch signal during contact with a portion, at which the display panel is installed, or the transmission panel.

9. The display apparatus according to claim 8, wherein the touch electrode is formed in a film form, and is stacked and bonded by a light transmission adhesive.

10. The display apparatus according to claim 1, wherein the transparent electrode is attached to the entirety of a remaining portion except for a portion to which the display panel is attached in the transmission panel or is attached to the entirety of one surface of the transmission panel, in order to increase an amount of current provided to the display panel.

11. The display apparatus according to claim 1, wherein the transparent electrode is made of one conductive material of indium tin oxide (ITO), fluoride tin oxide (FTO), metal mesh, metal nanowire, carbon nanotube (CNT), conductive polymer, and grapheme, and is formed with a conductive pattern.

12. The display apparatus according to claim 1, further comprising a beam projector which projects an image on a remaining portion except for a portion to which the display panel is attached in the transmission panel.