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Transmission screen

一种屏幕、固化型树脂的技术，应用在带有内装屏幕/外装屏幕的放映机、光学、印刷等方向，能够解决没有考虑到白板笔书写、消除性不良、笔墨痕迹无法消除等问题

Inactive Publication Date: 2006-08-09
KIMOTO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, conventional transmissive screens have not considered the function of writing with a whiteboard marker, or even if they can write with a whiteboard marker, if a lens is used, the light emitting surface is concave and convex due to the shape of the lenticular lens, so the erasability is poor.
[0006] If light-diffusing material is used, pen and ink traces immersed in the interior cannot be eliminated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0091] After mixing the following light-diffusing particle suspension A, it was stirred using a mixer (NANOMILL Asada Iron Works Co., Ltd.) to obtain light-diffusing particle suspension A.

[0092] Then, the manufacturing method of the transmissive screen in Example 1 is as follows: on one side of a silicate glass plate with a thickness of 3 mm as the base material, the resin layer coating solution B of the following prescription is used to coat, dry, and use a high-pressure A mercury lamp was irradiated with ultraviolet rays to form a resin layer with a thickness of 6 μm. Next, on the other side of the substrate, apply the coating liquid C for the light-diffusing layer described below, dry it, and then cure it at 60° C. for 24 hours to obtain a film with a thickness of 20 μm. light diffusing layer.

[0093]

[0094] ・Ultraviolet curable resin 60.0 parts by weight

[0095] (Acrylic resin, solid content 100%)

[0096] (DIABEAM UR6530: Mitsubishi Rayon Corporation)

[0097...

Embodiment 2

[0119] A resin layer was formed on one side of a transparent polyethylene glycol film (REMIRRORT-60: TORAY Co., Ltd.) with a thickness of 100 μm in the same manner as in Example 1, and the other side was coated with a coating liquid D for an adhesive layer with the following prescription. Apply and dry to form an adhesive layer with a thickness of 20 μm, which is pasted on one side of the silicate glass plate of Example 1.

[0120] Then, one side of the above-mentioned polyethylene glycol film is made into a light-diffusing layer in the same way as in Example 1, and the other side is made into an adhesive layer in the same way as above, and then pasted on the above-mentioned silicate glass plate. On the other side, the transmissive screen of Example 2 was fabricated.

[0121]

[0122] · Acrylic adhesive (solid content 40%) 100.0 parts by weight

[0123] (Olivine (Olivine) BPS1109. Toyo Ink Manufacturing Co., Ltd.)

[0124] 2.5 parts by weight of polyisocyanate (solid conte...

Embodiment 3

[0128] Resin layer coating liquid E, light diffusing particle suspension F, and light diffusing layer coating liquid G of the following formulations were used instead of resin layer coating liquid B and light diffusing particle suspension A in Example 1 , and the coating liquid C for the light-diffusing layer to make a light-diffusing layer with a thickness of 15 μm, and the other parts were made the transmissive screen of Example 3 by the same manufacturing method as in Example 1.

[0129]

[0130] ・Ultraviolet curable resin 60.0 parts by weight

[0131] (Acrylic resin, solid content 100%)

[0132] (DIABEAM UR6530: Mitsubishi Rayon Corporation)

[0133] ・Matting agent (silica (silica) average diameter 4.5 μm) 5.0 parts by weight

[0134] (SYLYSIA446: FUJI SILYSIA CHEMICAL LTD.)

[0135] Pigment (silica, average particle size 30nm) 2.5 parts by weight

[0136] (AEROSILR-972: AEROSIL NIPPON AEROSIL CO., LTD)

[0137] 0.3 parts by weight of photopolymerization initiator ...

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PUM

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Abstract

A transmission screen one side of which is writable and erasable. The secular gloss (JIS K5600-4-7:1999) of the writable / erasable side is 70 to 135%, the haze (JIS K7136:2000) of the entirety is 80% or more, and the s pecular gloss (JIS K5600-4-7:1999) of the opposite side is 10% or less. While viewing the image on the transmission screen the user can easily write with a marker for white boards and erase, and the transmission screen is free from the problem of conventional screens that it becomes difficult for the viewers to read when the image projected by a projector is partly projected onto the body of the user who is writing.

Description

technical field [0001] The present invention relates to a transmissive screen capable of viewing the backside projection of an image projected from a projector through the screen from the opposite side of the projector, and more particularly to making notes on the image projected by the projector possible with a marker for white boards Eliminate the see-through screen. Background technique [0002] Conventionally, from the standpoint of space-saving installation of a screen for projecting an image projected by a projector and a whiteboard, and improvement of reporting efficiency, boards having both functions have been proposed and put into practical use (see Patent Documents 1, 2). [0003] However, these screens are reflective screens that reflect the image projected from the projector on the screen and view the image with reflected light. Therefore, when writing with a whiteboard marker on the projected image on the screen, the body of the writer The light of the machine...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/62G03B21/10B43L1/10G03B21/56
CPCG03B21/625G03B21/62
Inventor 中田宏英柳泽亮子原田正裕松下武司杉山诚
Owner KIMOTO CO LTD
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