Panasonic Liquid Crystal Display Co., Ltd.

Naoki Sato

Ryosuke Yabuki

Yoshifumi Sekiguchi

Kazuhiko Tsuda

Tomoharu Notoshi

Takaaki Kitada

Naoki Iwasaki

A display device includes a liquid crystal display (LCD) panel, a rear frame, a light guide plate, and a light emitting diode (LED) substrate. The LED substrate includes a first substrate portion, a second substrate portion, a plurality of LEDs mounted to the first substrate portion, and a power connector mounted to the second substrate portion. The first substrate portion extends in a first direction along a first side of the light guide plate that faces the first sidewall of the rear frame. The second substrate portion extends in a second direction along a second side of the light guide plate that faces the second sidewall of the rear frame. A backlight unit for a display device includes a light guide plate and a LED substrate.

Display device with LED substrate, and backlight unit thereof

A lighting device includes: a light source including a light emitting element that emits light having an emission peak wavelength in a wavelength range of 500 nm or less; and first, second and third fluorescent substances on which light emitted from the light emitting element is incident, wherein the first fluorescent substance absorbs at least light emitted from the light emitting element to emit light having a emission peak wavelength in a wavelength range of 500 nm to 580 nm, the second fluorescent substance absorbs at least light emitted from the first fluorescent substance to emit light having a emission peak wavelength in a wavelength range of 580 nm to 750 nm, and the third fluorescent substance absorbs light having a wavelength range of 500 nm or less to emit light having a emission peak wavelength in a wavelength range of 600 nm to 750 nm.

Lighting device and liquid crystal display apparatus

A display device with at least one hole is susceptible to poor image quality because of the luminance difference between the front of the hole and behind the hole in relation to the plurality of light sources located along one edge of the backlight unit. To decrease the luminance difference, the distance between adjacent light sources are adjusted, the light ray directions are altered and cutout sections are provided.

Backlight unit of display device

A liquid crystal display device according to an embodiment is disclosed. The liquid crystal display device includes a liquid crystal display panel; a light emitting diode (LED) substrate; a plurality of light emitting diodes (LEDs) disposed on the LED substrate; a first diffuser disposed between the plurality of LEDs and the liquid crystal display panel; a bandpass filter being disposed between the plurality of LEDs and the diffuser; and a plurality of focus lenses corresponding to the plurality of LEDs, wherein each of the LEDs includes one of the plurality of focus lenses.

Liquid crystal display

Provided is a liquid crystal display device () with increased light use efficiency and thin frame on the side on which the light emitting diode is disposed, including: a liquid crystal panel (); a backlight unit () including a light guide plate () and light emitting diodes being disposed side by side in a longitudinal direction of an incident surface; an intermediate frame (), which includes a plurality of protruding portions that protrude to an exiting surface side of the light guide plate (); and an end portion reflection sheet (), which is disposed on an exiting surface side of the intermediate frame () and adjacent to the plurality of protruding portions, extends in an array direction of the light emitting diodes, and includes tongue-shaped portions each extending between adjacent ones of the plurality of protruding portions.

Growing community of inventors

Hyogo, Japan

Naoki Sato