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1. A display screen turning apparatus comprising:
a base; a first rotation support portion provided separately from said base for supporting a display screen portion and formed to be horizontally rotatable with respect to said base; a second rotation support portion provided separately from said base for supporting said display screen portion and formed to be horizontally rotatable with respect to said base independently of said first rotation support portion, for horizontally rotating said display screen portion by rotating at least either said first rotation support portion or said second rotation support portion; at least either said first rotation support portion or said second rotation support portion includes a slide member formed to horizontally slide with respect to said base, and a support member, supporting said display screen portion, formed to be horizontally rotatable with respect to said slide member, wherein said base includes a guide portion formed to guide sliding of said slide member and inhibit said slide member from floating up from said base when said slide member horizontally slides, said slide member includes a first slide member, constituting said first rotation support portion, formed to horizontally slide with respect to said base and a second slide member, constituting said second rotation support portion, formed to horizontally slide with respect to said base, said support member includes a first support member, constituting said first rotation support portion along with said first slide member, formed to be horizontally rotatable with respect to said first slide member and a second support member, constituting said second rotation support portion along with said second slide member, formed to be horizontally rotatable with respect to said second slide member, said guide portion is formed to guide rotation of said first slide member and said second slide member when said first slide member and said second slide member horizontally rotate respectively, said first slide member has a first rotation control portion controlling rotation of said first slide member by coming into contact with said guide portion when said first slide member rotates with respect to said base portion, and said second slide member has a second rotation control portion controlling rotation of said second slide member by coming into contact with said guide portion when said second slide member rotates with respect to said base.
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