Back to results
US 8,570,457 B2Granted
LED backlight and liquid crystal display device
AssigneeSharp Kabushiki Kaisha
InventorAkira Tomiyoshi
Life of this patent
Estimating the term…
Abstract
An LED backlight in which deterioration in in-plane uniformity of brightness is prevented, whose thickness, frame width, and wire length are reduced, and in which wiring can be carried out easily, includes an LED provided on one surface of an LED substrate; the LED substrate is mounted on a chassis panel so that a surface of the LED substrate opposite to the one surface contacts the chassis panel; and the chassis panel has a connection hole provided in a portion of a region of the chassis panel in which region the LED substrate is mounted, which passes through the chassis panel.
Claims16
An LED backlight comprising:
- a plurality of LEDs including a first LED and a second LED;
- a first LED substrate on which the first LED is mounted;
- a second LED substrate on which the second LED is mounted;
- an LED driver which drives at least one of the plurality of LEDs;
- an LED driver substrate on which the LED driver is mounted;
- and
- a chassis;
- wherein
- the first LED substrate and the second LED substrate are provided in line on one surface of the chassis,
- the LED driver substrate is provided on another surface of the chassis,
- at least a first connection hole and a second connection hole are provided in the chassis,
- the first LED substrate is electrically connected to the LED driver substrate through the first connection hole,
- the second LED substrate is electrically connected to the LED driver substrate through the second connection hole,
- the LED driver substrate is rectangular in shape, and is provided so that a longer side of the LED driver substrate is parallel to a shorter side of the chassis,
- the first LED substrate and the second LED substrate are aligned in line parallel to the longer side of the LED driver substrate, and
- the first connection hole and the second connection hole are respectively provided in portions of the chassis in which the first LED substrate and the second LED substrate are mounted such that the first connection hole and the second connection hole are overlapped by a respective one of the first LED substrate and the second LED substrate.
13 more elements
An LED backlight comprising:
- a plurality of LEDs including a first LED and a second LED;
- a first LED substrate on which the first LED is mounted;
- a second LED substrate on which the second LED is mounted;
- an LED driver which drives at least one of the plurality of LEDs;
- an LED driver substrate on which the LED driver is mounted;
- and
- a chassis;
- wherein
- the first LED substrate and the second LED substrate are provided in line on one surface of the chassis,
- the LED driver substrate is in rectangular shape, and is provided so that a longer side of the LED driver substrate is parallel to a shorter side of the chassis panel,
- at least a first connection hole and a second connection hole are provided in the chassis,
- the first LED substrate is electrically connected to the LED driver substrate through the first connection hole,
- the second LED substrate is electrically connected to the LED driver substrate through the second connection hole,
- the first connection hole and the second connection hole are provided in a position where the first LED substrate or the second LED substrate does not overlap the LED driver substrate
- the first LED substrate and the second LED substrate are aligned in line parallel to the longer side of the LED driver substrate, and
- the first connection hole and the second connection hole are respectively provided in portions of the chassis in which the first LED substrate and the second LED substrate are mounted such that the first connection hole and the second connection hole are overlapped by a respective one of the first LED substrate and the second LED substrate.
13 more elements
Dependencies are inferred from the claim text.