EP0424681A1 - Display box - Google Patents

Display box Download PDF

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Publication number
EP0424681A1
EP0424681A1 EP90118595A EP90118595A EP0424681A1 EP 0424681 A1 EP0424681 A1 EP 0424681A1 EP 90118595 A EP90118595 A EP 90118595A EP 90118595 A EP90118595 A EP 90118595A EP 0424681 A1 EP0424681 A1 EP 0424681A1
Authority
EP
European Patent Office
Prior art keywords
box
transparent panel
display
display box
transparent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90118595A
Other languages
German (de)
French (fr)
Other versions
EP0424681B1 (en
Inventor
Takashi Yasuo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inax Corp
Original Assignee
Inax Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Inax Corp filed Critical Inax Corp
Publication of EP0424681A1 publication Critical patent/EP0424681A1/en
Application granted granted Critical
Publication of EP0424681B1 publication Critical patent/EP0424681B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F7/00—Signs, name or number plates, letters, numerals, or symbols; Panels or boards
    • G09F7/002—Signs, name or number plates, letters, numerals, or symbols; Panels or boards weather-proof panels or boards

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Casings For Electric Apparatus (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Toys (AREA)

Abstract

A display box contains a display device having a display screen and comprises a transparent panel at the position opposed to the display screen. An ultrasonic oscillator for driving the transparent panel is provided with the box.

Description

    Field of the Invention
  • The present invention relates to a display box, in particular to an improved display box in which condensation is prevented even in a place including high humidity such like a bath room so that a display screen can be visualized clearly.
    • Prior Art
  • In case of where a display device having display screen such like a television is set within the bath room, the display device has been put in the display box and has been set in order to protect the display device from the mois­ture. The display box contains a transparent panel with which the display screen of the display device faces. In such kind of display box, condensation is generated on the outer surface of the transparent panel, so that the display screen becomes difficult to be visualized.
    • Object and Summary of the invention:
  • The object of the present invention is to provide an improved display box, wherein condensation of the transpar­ent panel is prevented and the display screen is always visualized clearly.
  • The present invention provides a display box containing a display device having a display screen and comprising a transparent panel at the position opposed to the display screen, wherein an ultrasonic oscillator for driving the transparent panel is provided.
  • According to the display box of the present invention, micro water droplet adhered or is going to adhere to the transparent panel surface is diverged by that the transpar­ent panel is driven by the ultrasonic wave, thereby prevent­ing moisture condensation on the transparent panel.
    • Brief Description of the Drawings:
    • Fig. 1 is a plane view of the display box according to one embodiment of the present invention.
    • Fig. 2 is a sectional view according to II-II line of Fig. 1.
    • Fig. 3 is a plane view of the display box according to another embodiment of the present invention.
    • Fig. 4 is a sectional view according to IV-IV line of Fig. 3.
    Preferred Embodiments:
  • Hereinafter, the reference is made to the explanation of the embodiments based on Figs. 1 to 4.
  • Fig. 1 is a plane view of the display box according to one embodiment of the present invention, and Fig. 2 is a sectional view according to II-II line of Fig. 1. A display box 1 has an opening at the front surface thereof and a transparent panel 2 is attached to the opening. A step is provided at the back side of a margin of the opening and is engaged with the step of the margin of the panel. A display device 4 is set at the back side of the transparent panel 2 in which a display screen 4a is faced with the transparent panel 2. The reference numeral 3 shows a bracket for supporting the display device 4.
  • A circuit board 5 is provided at the back surface of the display device 4 within the display box 1, and the circuit board 5 is coupled to the display device 4 by means of a lead line 6. The circuit board 5 is coupled to a supersonic oscillator 11 through a lead line 7. The super­sonic oscillator 11 is adjacent to the back surface of the transparent panel 2 and is supported in the state of being pressed to the back surface of the transparent panel 2 by means of a support angle 12.
  • A switch 9 for controlling sound volume and for switch­ing channel is provided at side portion of the transparent panel 2 as shown in Fig. 1, and the switch 9 is coupled to the circuit board 5 by means of the lead line (not shown). A reference numeral 10 of Fig. 2 shows a power cable.
  • According to the display box as mentioned above, the supersonic oscillator 11 is actuated to vibrate the trans­parent panel 2 with fine and high frequency. So, the micro water droplet adhered or is going to adhere to the outer surface of the transparent panel 2 is diverged, thereby preventing condensation on the transparent panel 2. There­fore, even if such display box is set in the place where it includes high humidity such like the bath room, the display screen 4a can be visualized clearly at all times.
  • Fig. 3 is a plane view of the display box according to another embodiment of the present invention. Fig. 4 is a sectional view according to IV-IV line of Fig. 3. A frame 2a is fixed at the margin of the transparent panel 2, and the supersonic oscillator 11 is adjacent to the back surface of the frame 2a. As shown in Fig. 3, the supersonic oscil­lator 11 in this embodiment has a long shape extending along each edge of the transparent panel 2. The other structure is same as that in Figs. 1 and 2, and the same mark shows the same portion respectively.
  • In the display box as shown in Figs. 3 and 4, moisture condensation on the transparent panel 2 is prevented so that it is possible to visualize the display screen 4a clearly at all times. Further, in the display box as shown in Figs. 1 to 4, the transparent panel 2 is easy to be oscillated as a whole, thereby realizing excellent effect of preventing condensation securely over whole surface of the screen.
  • The above mentioned embodiment is one exampie of the present invention, and the present invention can use other shaped box than that as shown in Figs. 1 to 4. Further, the switch 9 can be provided at other position than that as shown in the drawings. Furthermore, the display box can be composed of the transparent material at the portion other than the transparent panel, and the whole of the box can be composed of the transparent material.

Claims (7)

  1. (1) A display box containing a display device having display screen therein and comprising a transparent panel at the position opposed to said display screen, wherein a supersonic oscillator for preventing condensation by driving said transparent panel is provided.
  2. (2) A display box, comprising;
    a box in which at least one face is transparent;
    a display device having display screen opposed to said transparent face within said box; and
    a supersonic oscillator for driving said transparent face.
  3. (3) The display box of claim 2, wherein the transpar­ent face is composed of a transparent panel, and said transparent panel is a separated body from the other portion of the box.
  4. (4) The display box of claim 3, wherein the supersonic oscillator is provided within the box and is pressed to the transparent panel.
  5. (5) The display box of claim 3, wherein a frame is fixed on the transparent panel.
  6. (6) The display box of claim 5, wherein the supersonic oscillator is provided within the box and is pressed to the frame.
  7. (7) The display box of claim 3, wherein an opening is provided at least one face of box, the transparent panel is attached to said opening, a step is provided at the back side of a margin of said opening, said step is engaged with the margin of the transparent panel, and the supersonic oscillator is pressed to the back side of the panel.
EP90118595A 1989-09-29 1990-09-27 Display box Expired - Lifetime EP0424681B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP254480/89 1989-09-29
JP1254480A JPH0636130B2 (en) 1989-09-29 1989-09-29 Display box

Publications (2)

Publication Number Publication Date
EP0424681A1 true EP0424681A1 (en) 1991-05-02
EP0424681B1 EP0424681B1 (en) 1994-12-07

Family

ID=17265638

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90118595A Expired - Lifetime EP0424681B1 (en) 1989-09-29 1990-09-27 Display box

Country Status (5)

Country Link
EP (1) EP0424681B1 (en)
JP (1) JPH0636130B2 (en)
KR (1) KR940010783B1 (en)
DE (1) DE69014830T2 (en)
ES (1) ES2067615T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100430497B1 (en) * 2000-12-09 2004-05-10 주식회사 세광 Road signs
KR100518459B1 (en) * 2002-11-21 2005-10-04 김은주 Signboard for road and construction signs

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1368054A (en) * 1963-09-05 1964-07-24 Trico Folberth Ltd Improvements to window cleaning and, in particular, windshields
DE2156032A1 (en) * 1971-11-11 1973-05-24 Rau Swf Autozubehoer DEVICE FOR CLEANING THE WINDOWS IN VEHICLES
US4768256A (en) * 1986-11-07 1988-09-06 Motoda Electronics Co., Ltd. Ultrasonic wiper

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1368054A (en) * 1963-09-05 1964-07-24 Trico Folberth Ltd Improvements to window cleaning and, in particular, windshields
DE2156032A1 (en) * 1971-11-11 1973-05-24 Rau Swf Autozubehoer DEVICE FOR CLEANING THE WINDOWS IN VEHICLES
US4768256A (en) * 1986-11-07 1988-09-06 Motoda Electronics Co., Ltd. Ultrasonic wiper

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 6, no. 153 (M-149)(1031), 13 August 1982; & JP - A - 5770754 (ADETSUKU K.K.) 01.05.1982 *

Also Published As

Publication number Publication date
JPH03116186A (en) 1991-05-17
JPH0636130B2 (en) 1994-05-11
KR910007398A (en) 1991-04-30
EP0424681B1 (en) 1994-12-07
DE69014830T2 (en) 1995-04-13
ES2067615T3 (en) 1995-04-01
KR940010783B1 (en) 1994-11-11
DE69014830D1 (en) 1995-01-19

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