Title:
WRITING BOARD
Document Type and Number:
WIPO Patent Application WO/2010/117100
Kind Code:
A1
Abstract:
The present invention relates to a writing board which is embedded with a light source and can be used for lecturing through writing on the surface thereof, and more particularly, to a writing board wherein power consumption is reduced, a front writing panel is made of glass or a transparent synthetic resin pad which employs a diffused reflection effect, a diffusion sheet is provided inside for superior visibility, colors are expressed outside, and a color pen having a color contrasting the expressed color is employed for writing so that people attending to the lecture can recognize writing easily without eye fatigue. In a board of the present invention which is embedded with a light source for light emission and used for a lecture through writing on the front surface thereof, the writing board comprises a writing panel (110) positioned on the front side and made of glass or a transparent pad; a diffusion sheet (120) positioned on the backside of the writing panel; a light guide panel (140) positioned on the backside of the diffusion sheet; a support plate (160) positioned on the backside of the light guide panel (140); a light source (150) having a plurality of LEDs (152) for emitting light in response to power supply from side edges of the light guide panel (140) and a circuit board (154); and a side frame (170) for integrally fixing and supporting the writing panel (110), the diffusion sheet (120), the light guide panel (140), the support plate (160) and the light source (150) by surrounding the same. According to the present invention, letters are prevented from being shown double, thereby being recognized easily and precisely, since interior lighting or sunlight is not reflected forward by the writing panel. Furthermore, the present invention expresses colors to the outside of the writing panel in response to the lighting of the light source, thereby making interior environments more beautiful, and increasing the effect of the interior design and lecture efficiency.
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| JP2004034363 | RESIN COATED MATTE INDICATION BOARD |
Inventors:
PARK YOUNG-GU (KR)
Application Number:
PCT/KR2009/001984
Publication Date:
October 14, 2010
Filing Date:
April 16, 2009
Export Citation:
Assignee:
NEXON CO LTD (KR)
PARK YOUNG-GU (KR)
PARK YOUNG-GU (KR)
International Classes:
B43L1/10
Domestic Patent References:
| WO2004016068A2 | 2004-02-26 |
Foreign References:
| EP0390270A1 | 1990-10-03 | |||
| KR200404911Y1 | 2005-12-29 | |||
| JP2004255885A | 2004-09-16 |
Attorney, Agent or Firm:
JEONG, YOUNG-SU (KR)
정영수 (KR)
정영수 (KR)
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