Projection screen structure
A projection screen and projection technology, which is applied in the field of projection screen structure, can solve the problems of easy fatigue of eyes, blind spots in teaching, and difficulty in meeting writing and wiping conditions.
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[0033] Please refer to FIG. 1, which is the first embodiment of the structure of the projection screen of the present invention, which is used to illustrate the structure of the wall-mounted projection screen of the present invention. The wall-mounted projection screen 10 includes a roll-up storage body 11, a projection screen 12 and a drop-down body 13, wherein , the projection screen 12 is connected between the roll-up storage body 11 and the drop-down body 13, the drop-down body 13 is provided with a positioning slot 130 for embedding and combining the projection screen 12, the roll-up storage body 11 and the drop-down body 13 They are all existing traditional devices and structures, and for the sake of simplification, the detailed descriptions of the up-roll storage body 11 and the drop-down drop body 13 are omitted.
[0034] Please refer to Fig. 1A, the structural layers of the projection screen 12 include a projection writing layer 120, a base layer 121 and an adsorption ...
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