BACKLIGHT DEVICE, DISPLAY DEVICE, AND TELEVISION RECEIVER

• US 20110013090A1
• Filed: 10/10/2008
• Published: 01/20/2011
• Est. Priority Date: 03/12/2008
• Status: Abandoned Application

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Matsumoto, Shinji
• Application Number:
  US12/920,878
• Publication Number:
  US 20110013090A1
• Time in Patent Office: Days
• US Class Current: 348/725
• CPC Class Codes: G02F 1/133604 with lamps
• CPC Class Codes: G02F 1/133608 including particular frames or supporting means
• CPC Class Codes: H01R 33/0854 with lamp rotating means

Abstract

A backlight device in which falling of a light source from a connector member is suppressed. The backlight device (20) comprises hot-cathode fluorescent lamps (23) where connector parts (23a) having two terminals (23b) are provided at the both ends, a chassis (21) disposed on the back surface side of the hot-cathode fluorescent lamps, and fluorescent lamp sockets (24) which fix the hot-cathode fluorescent lamps to the chassis. At each fluorescent lamp socket, an insertion part (24c) for inserting a terminal of a hot-cathode fluorescent lamp is formed. The insertion part is formed so that the direction of removing the hot-cathode fluorescent lamp from the socket faces an upper side than the horizontal direction when the chassis is disposed vertically.

Claims

1. A backlight device comprising:

a light source on both end portions of which lamp base portions each having a plurality of terminals are disposed;

a chassis that is disposed on a rear-surface side of the light source; and

a connector member that fixes the light source to the chassis;

wherein the connector member is provided with an insertion portion into which the terminal of the light source is inserted; and

the insertion portion is formed in such a way that in a state in which the chassis is vertically disposed, a direction in which the light source is demounted from the connector member faces an upper side than a horizontal direction.

2. The backlight device according to claim 1, wherein

the insertion portion is formed in such a way that in the state in which the chassis is vertically disposed, the direction in which the light source is demounted from the connector member is inclined toward an upside with respect to a direction away from the chassis.

3. The backlight device according to claim 1, wherein

a first claw portion and a second claw portion, which have a first insertion surface and a second insertion surface respectively which constitute the insertion portion, are so formed on the connector member as to face each other;

the first claw portion is disposed over the second claw portion; and

the second claw portion has a length longer than the first claw portion.

4. The backlight device according to claim 3, wherein

an end portion of the first insertion surface of the first claw portion is provided with a first end surface;

an end portion of the second insertion surface of the second claw portion is provided with a second end surface; and

the first end surface of the first claw portion and the second end surface of the second claw portion are so formed as to be away from each other toward outside of the insertion portion.

5. The backlight device according to claim 4, wherein

the second end surface of the second claw portion is so formed as to be inclined toward an upside with respect to a direction away from the chassis in the state in which the chassis is vertically disposed.

6. The backlight device according to claim 1, further comprising a cover member that is fixed to the chassis and covers the connector member;

wherein

a portion of the cover member, which is situated in a direction in which the insertion portion extends, is provided with an opening portion.

7. The backlight device according to claim 1, wherein

a first claw portion and a second claw portion, which have a first insertion surface and a second insertion surface respectively which constitute the insertion portion, are so formed on the connector member as to face each other;

the first claw portion and the second claw portion are provided with an arc-shape first groove portion and an arc-shape second groove portion respectively that are connected to the insertion portion; and

the terminals of the light source are inserted into the insertion portion of the connector member, rotated by a predetermined angle in a circumferential direction of the light source to be moved into the first groove portion and the second groove portion, so that the light source is mounted on the connector member.

8. The backlight device according to claim 7, wherein the predetermined angle by which the terminals of the light source are rotated is smaller than 90 degrees.

9. The backlight device according to claim 1, wherein the connector member is provided with a limit portion that limits movement of the light source in an axis direction of the light source.

10. A display device comprising:

the backlight device according to claim 1; and

a display panel that is illuminated by the backlight device.

11. A television receiver comprising:

the display device according to claim 10;

a cabinet that houses the display device;

a tuner; and

a speaker.