Optical element enclosure having contractive enclosing member with opening at corner/curvature portion, backlight, and liquid crystal display device
First Claim
1. An optical element enclosure comprising:
- one, two, or more film-shaped or sheet-shaped optical elements;
a plate-shaped supporting member supporting said one, two, or more optical elements; and
a contractive enclosing member enclosing said one, two, or more optical elements and said supporting member,wherein said one, two, 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,at least one opening portion is provided for said enclosing member, wherein the opening portion of said enclosing member is provided for a corner/curvature portion of said supporting member, anda 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).
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.
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Citations
19 Claims
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1. An optical element enclosure comprising:
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one, two, or more film-shaped or sheet-shaped optical elements; a plate-shaped supporting member supporting said one, two, or more optical elements; and a contractive enclosing member enclosing said one, two, or more optical elements and said supporting member, wherein said one, two, 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, at least one opening portion is provided for said enclosing member, wherein the opening portion of said enclosing member is provided for a corner/curvature portion 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 (2, 3, 4, 5, 6, 7, 8, 9)
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10. 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, at least one opening portion is provided for said enclosing member, wherein the opening portion of said enclosing member is provided for a corner/curvature portion 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×
4×
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 (11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification