Backlight Unit and Liquid Crystal Display Employing the Same
First Claim
1. A backlight unit, comprising:
- a box type case having a sidewall and an upper opening;
an optical member such as a light source and an optical sheet contained in the box type case; and
a supporting frame in a frame shape securing the optical member in place by being fitted in the opening of the box type case and supporting a liquid crystal display panel;
a first engaging portion being provided to an inside of the sidewall of the box type case, and a second engaging portion being provided to an outer surface of the sidewall of the supporting frame being fitted in the upper opening of the box type case, the second engaging portion being a U-shaped groove with a predetermined depth and having an opening at an upper portion of the supporting frame and locking means being attached to a bottom wall surface of the U-shaped groove, the locking means being engaged with and locked by the first engaging portion as the first and second engaging portions engage each other.
3 Assignments
0 Petitions
Accused Products
Abstract
A backlight unit (2) comprising a shallow box type case (3) having low profile sidewalls and opening upward, a light guide plate (7) in the box type case (3), and a supporting frame (11) containing optical members such as a linear light source (8) and an optical sheet (10) and securing the optical members in place by being fitted in the opening. A first engaging portion (4) is provided on the inside of the sidewall of the box type case (3) and second engaging portions (121-124) are provided on the outer surface of the sidewall of the supporting frame (11) being fitted in the upper opening of the box type case (3). A locking means (14) is attached to the second engaging portion such that the locking means (14) engages with and locks the first engaging portion when the first and second engaging portions engage with each other, thus preventing unfastening of the supporting frame. A liquid crystal display employing the backlight unit is also provided.
7 Citations
8 Claims
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1. A backlight unit, comprising:
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a box type case having a sidewall and an upper opening;
an optical member such as a light source and an optical sheet contained in the box type case; and
a supporting frame in a frame shape securing the optical member in place by being fitted in the opening of the box type case and supporting a liquid crystal display panel;
a first engaging portion being provided to an inside of the sidewall of the box type case, and a second engaging portion being provided to an outer surface of the sidewall of the supporting frame being fitted in the upper opening of the box type case, the second engaging portion being a U-shaped groove with a predetermined depth and having an opening at an upper portion of the supporting frame and locking means being attached to a bottom wall surface of the U-shaped groove, the locking means being engaged with and locked by the first engaging portion as the first and second engaging portions engage each other. - View Dependent Claims (3, 4, 5, 6, 7)
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2. (canceled)
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8. A liquid crystal display, comprising:
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a box type case in a rectangular shape having a sidewall and an upper opening;
an optical member such as a light source and an optical sheet contained in the box type case; and
a supporting frame in a frame shape securing the optical member in place by being fitted in the opening of the box type case;
a liquid crystal display panel mounted on the supporting frame;
a flexible circuit board being connected to one side of the liquid crystal display panel; and
a front surface frame securing the liquid crystal display panel;
an engaging portion being provided to the sidewall at a long side of the box type case, an engaging portion that is a U-shaped groove with a predetermined depth and having an opening at an upper portion of the supporting frame being provided to an outer surface of the sidewall at one long side of the supporting frame, and locking means being attached to a bottom wall surface of the U-shaped groove, an engaging portion being provided to an inner surface of the sidewall at the other long side of the supporting frame, the locking means being engaged with and locked by the engaging portion as the engaging portion of the box type case and the engaging portion of the supporting frame engage each other, and the flexible circuit board being placed at the other long side of the supporting frame.
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Specification