OPTICAL ELEMENT COVERING MEMBER, BACKLIGHT, AND LIQUID CRYSTAL DISPLAY DEVICE
1 Assignment
0 Petitions
Accused Products
Abstract
An optical element covering member includes: at least one optical element; a support medium supporting the at least one optical element; and a shrinkable covering member covering the at least one optical element and the support medium. In the optical element covering member, among sides forming primary surfaces of the support medium, at least one set of sides facing each other is covered with the covering member, and the following equation (1) is satisfied under conditions at a temperature of 70° C.,
0≦F≦1.65×104×t/L (1)
where t indicates the thickness of the support medium, L indicates the length of the side of the support medium covered with the covering member, F indicates a tensile force of the covering member, which acts in a direction parallel to the side having the length L.
13 Citations
33 Claims
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1-11. -11. (canceled)
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12. An optical element enclosure comprising:
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one or more film-shaped or sheet-shaped optical elements;
a plate-shaped supporting member supporting said one or more optical elements; anda contractive enclosing member enclosing said one or more optical elements and said supporting member, wherein said one or more optical elements and said supporting member form a laminate body, said laminate body has an incident plane in which light from a light source enters, an emitting plane from which the light entered from said incident plane is emitted, and an edge surface locating between said incident plane and said emitting plane, said enclosing member is closely adhered to said laminate body and encloses the emitting plane, incident plane, and all edge surfaces of said laminate body, and a thickness t of said supporting member, a length L of side of said supporting member, and a tension F of said enclosing member satisfy the following relational expression (1) under an environment of a temperature of 70°
C.,
0≦
F≦
1.65×
104×
t/L . . .
(1)where, in the expression (1), t, L, and F indicate the following elements; t;
distance between the incident plane and the emitting plane of the supporting memberL;
length of side closed by said enclosing member among the sides constructing a plane perpendicular to the thickness tF;
tension of the enclosing member which acts on the side of the length L in the parallel direction.- View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 30, 31, 33)
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18. The optical element enclosure according to claim 12, wherein
said enclosing member has a first area and a second area with which the incident plane and the emitting plane of said supporting member are respectively covered, and an optical function layer is provided for at least either said first area or said second area. -
19. The optical element enclosure according to any one of claims 12 to 18, wherein at least one opening portion is provided for said enclosing member.
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20. The optical element enclosure according to claim 19, wherein the opening portion of said enclosing member is provided for a corner/curvature portion of said supporting member.
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30. A backlight having the optical element enclosure according to any one of claims 12 to 20.
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31. A liquid crystal display apparatus having the optical element enclosure according to any one of claims 12 to 20.
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33. A liquid crystal display apparatus having the optical element enclosure according to any one of claims 12 to 20.
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21. An optical element enclosure comprising:
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a plate-shaped supporting member; and a contractive enclosing member enclosing said supporting member, wherein said supporting member has an incident plane in which light from a light source enters, an emitting plane from which the light entered from said incident plane is emitted, and an edge surface locating between said incident plane and said emitting plane, said enclosing member is closely adhered to said supporting member and encloses the emitting plane, incident plane, and all edge surfaces of said supporting member, and a thickness t of said supporting member, a length L of side of said supporting member, and a tension F of said enclosing member satisfy the following relational expression (1) under an environment of a temperature of 70°
C.,
0≦
F≦
1.65×
104×
t/L . . .
(1)where, in the expression (1), t, L, and F indicate the following elements; T;
distance between the incident plane and the emitting plane of the supporting memberL;
length of side closed by said enclosing member among the sides constructing a plane perpendicular to the thickness tF;
tension of the enclosing member which acts on the side of the length L in the parallel direction.- View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 32)
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27. The optical element enclosure according to claim 21, wherein
said enclosing member has a first area and a second area with which the incident plane and the emitting plane of said supporting member are respectively covered, and an optical function layer is provided for at least one said first area and said second area. -
28. The optical element enclosure according to any one of claims 21 to 27, wherein at least one opening portion is provided for said enclosing member.
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29. An optical element enclosure according to any one of claims 21 to 27, wherein at least one of the optical elements selected from a light diffusing element, a light converging element, a reflecting type polarizer, a polarizer, and a light dividing element is included in said enclosing member.
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32. A backlight having the optical element enclosure according to any one of claims 21 to 29.
Specification