Dell Products Inc.

Yong Gu Kang

Guentaek Oh

Kyung Eun Lee

An information handling system peripheral display monitor presents visual images at a liquid crystal display panel with illumination distributed across the display panel by a backlight. A light bar of plural light emitting diodes (LEDs) at a bottom side surface of the backlight directs illumination into the backlight from an upper surface and includes plural downlight LEDs on a bottom surface to direct illumination out a downlight opening formed in a housing of the display monitor.

Display monitor integrated down light

An illumination device provides illumination as backlight to a liquid crystal display by disposing plural light emitting diode packages on a circuit board having green quantum dot material integrated with a photoresist ink. Each package includes one or more blue light emitting diode integrated circuits enclosed in a silicon filling material that integrates a red phosphor extending above one or more sidewalls of the package so that at least some illumination from the blue light emitting diode is directed towards the green quantum dot material, resulting in generation of high color gamut backlight illumination.

High color gamut LED bar with side illumination LED package

A display couples a display panel over a light guide plate in a sharp edge housing by adapting the light guide plate side to have a beveled surface that fits along its perimeter into a reduced depth of the housing. The light guide plate beveled surface has angled sides relative to the light guide plate illumination side and reflective side to fit against parallel sides formed in the housing as the housing narrows towards its base where the light guide plate couples. A diffusive pattern formed in the light guide plate reflective surface that directs light towards the illumination surface extends onto the light guide plate side beveled surface.

Beveled light guide plate

A LED switching system, including a multi-chip LED including first and second sets of LED chips, the first set of LED chips associated with a first wavelength band and the second set of LED chips associated with a second wavelength band; a first LED driver in communication with the first set of LED chips; a second LED driver in communication with the second set of LED chips; a LED controller configured to: receive input indicating a selection of one of the wavelength bands; identifying one of the first set and the second set of LED chips associated with the selected wavelength band; and providing a signal to one of the first and the second LED drivers that is in communication with the identified set of LED chips; wherein, in response to the signal, the one of the first and the second LED drivers activates the identified set of LED chips.

Growing community of inventors

Singapore, Singapore

Yong Gu Kang