Samsung Display Co., Ltd.

Hee-Kwang Song

Juyoung Yoon

Sang-Il Park

Junghyun Kim

Seokhyun Nam

Ho-Sik Shin

Gi-Cherl Kim

Ju-Young Yoon

Hyuk-Hwan Kim

Youngchun Kim

Seok-Won Kang

Sanghyuck Yoon

Yong-hoon Kwon

Ho-sik Shin

Jung Hyun Kim

Young-Min Park

Se-Ki Park

Kyung-Min Kim

Dong-hwan Kim

Yong-Hoon Kwon

Dong-Min Yeo

Byung-Seo Yoon

Dongmin Yeo

Eun-Jeong Kang

Gicherl Kim

Ju Young Yoon

Hyeonmi Lee

Su-Chang Ryu

HanMoe Cha

Han-Moe Cha

Jung-Kyun Kim

Jung Kyun Kim

A display apparatus includes a light source generating blue light. A display panel is configured to display an image. A light guide member is disposed below the display panel. A first light conversion layer is disposed between the light guide member and the display panel. The first light conversion layer includes a plurality of quantum dots. A low refractive layer is disposed between the light guide member and the first light conversion layer. The low refractive layer has a refractive index that is less than that of the light guide member. A second light conversion layer is disposed between the light source and the first light conversion layer and includes a plurality of fluoride-based or nitride-based phosphors. The first light conversion layer is configured to convert the blue light into green light, and the second light conversion layer is configured to convert the blue light into red light.

Backlight unit and display apparatus including the same

A display device including a light source member including a light-emitting device which emits a first light having a central wavelength in a wavelength region of about 390 nm to about 410 nm, and a first phosphor converting the first light into a second light having a central wavelength in a wavelength region of about 440 nm to about 460 nm, a display panel disposed on the light source member, and a color conversion layer disposed between the light source member and the display panel and including a luminous body which is excited by at least one of the first light or the second light and emits a light in a wavelength region which is different from that of the second light.

Display device

A display apparatus includes a display module including a light conversion member including a plurality of quantum dots, a backlight unit providing a first light to the display module, and an optical filter disposed between the display module and the backlight unit. The optical filter includes a transmission filter layer transmitting a light in the first wavelength range and a second wavelength range, reflecting a light in a third wavelength range, and having a first effective refractive index and a viewing angle control layer disposed between the transmission filter layer and the display module to couple the transmission filter layer and the display module and having a second effective refractive index equal to or smaller than the first effective refractive index.

Display apparatus

A display apparatus includes a backlight unit including a first light source emitting a first light having at least two peak wavelengths and a second light source emitting a second light having a peak wavelength different from the two peak wavelengths, and a display panel receiving the first and second lights to display an image corresponding to an input image data, and a light source driver which analyzes a color information of predetermined dimming areas on the basis of the input image data and controls a contribution of the first and second light sources with respect to a target brightness of each of the predetermined dimming areas in accordance of the color information.

Display apparatus and method of driving the same

A display apparatus includes a backlight unit which generates light and provides the light to a display panel which displays an image with the light, a first polarizer disposed on the backlight unit, a third polarizer disposed on the first polarizer, a second polarizer disposed between the first polarizer and the third polarizer, a light transmittance layer which blocks or transmits the light therethrough to display the image, disposed between the first polarizer and the second polarizer, and a color conversion layer disposed between the second polarizer and the third polarizer, and including a color conversion material which converts a color of light transmitted through the light transmittance layer and the second polarizer. A polarizing axis of the third polarizer is different from a polarizing axis of the second polarizer.

A controlling method of a display apparatus, which includes pixels each including red, green, blue, and white sub-pixels, includes receiving image data in a unit of frame, analyzing the image data to extract pixel data with respect to a first pixel among the pixels and block data with respect to a first block of a backlight unit, which corresponds to the first pixel, normalizing the pixel data and the block data, comparing the normalized pixel data and the normalized block data, and generating white compensation data corresponding to the white sub-pixel on the basis of the compared result.

Display apparatus and method of controlling the same

A display device including a display panel, a timing controller, a backlight unit, and a backlight controller. The display panel includes a plurality of display blocks, and receives an image signal and display an image. The backlight unit includes a-numbered red light sources, b-numbered green light sources (a and b are natural numbers, b&#x3c;a), and a-numbered blue light sources, and provides light to the display panel. The backlight controller calculates a red luminance average, a green luminance average, and a blue luminance average of the block image signals, respectively, controls a duty ratio of the red light sources based on the red and green luminance averages, controls a duty ratio of the green light sources based on the green luminance average, and controls a duty ratio of the blue light sources based on the blue and green luminance averages.

Display device capable of reducing power consumption

A method of dimming a light source module including a light guide plate, a first light emitting module including first to k-th light source blocks, wherein the first light emitting module is disposed on a first edge of the light guide plate, and a second light emitting module including first to m-th light source blocks, the second light emitting module being disposed on a second edge of the light guide plate, the second edge disposed opposite the first, the method including; generating a first group of driving signals and a second group of driving signals based on an image signal and driving the first to k-th light source blocks using the first group of the driving signals during a first period in a reference period and driving the first to m-th light source blocks using the second group of driving signals during a second period in the reference period.

Method of dimming a light source and display apparatus for performing the method

A display device includes a display panel, a light guide plate which is disposed under the display panel and includes a first side surface, a second side surface connected to one end of the first side surface, and a third side surface connected to the other end of the first side surface, a first light source disposed to face the first side surface and including a plurality of light emitting devices including a first light emitting device to emit a first color light and a second light emitting device to emit a second color light, and a first reflecting member disposed on the second side surface and having a complementary color to a color of the light emitted from a light emitting device, which is disposed closest to the one end of the first side surface, among the plurality of light emitting devices.

A display apparatus includes a light source part, a light guide plate, and a display panel. The light source part includes first light sources and second light sources alternately arranged to emit a light having a color different from a color of a light emitted from the second light sources. The light guide plate includes an incident surface having at least one light incident surface facing the light source to guide the light. The display panel receives the light from the light guide plate to display an image. A distance between end portions of the incident surface and the first and second light sources disposed and corresponding to each end portion of the light incident surface is different from a distance between a center portion of the light incident surface and the first and second light sources disposed and corresponding to the center portion.

Display apparatus and backlight assembly

A backlight assembly includes a first light source unit including n light emitting members; and a light guide plate including a first side adjacent to the first light source unit, and a first groove adjacent to a first end of the first side.

Light guide plate and backlight assembly including the same

A light source module includes a receiving container, a light source disposed in the receiving container and a filter filtering the light produced from the light source. A backlight unit includes a plurality of light source modules. The plurality of light source modules include a first light source module with a filter and a second light source module alternately disposed with the first light source module. The filter includes a substrate, a transparent layer disposed on the first metal layer and a second metal layer disposed on the transparent layer. The filter transilluminating light of specific area is disposed on the light source module. Thus, the backlight unit having high color reproducibility may be manufactured.

Light source module and backlight unit having the same

A liquid crystal display includes: a signal controller which converts a first image signal having a first gray level based on an original gamma coefficient into a second image signal having a second gray level based on a target gamma coefficient; a liquid crystal panel connected to the signal controller and which displays an image based on the second image signal; and a light-emitting unit connected to the signal controller and which provides light to the liquid crystal panel. The target gamma coefficient is less than or equal to the original gamma coefficient, and a luminance of the light provided by the light-emitting unit is adjusted by the signal controller to minimize an amount of luminance distortion of the image.

Liquid crystal display and method of driving the same

A backlight assembly includes a first light emitting unit having a first light emitting diode, a second light emitting unit having a second light emitting diode, a third heat conduction member, and a receiving container accommodating the first light emitting unit and the second light emitting unit. The first light emitting unit includes a first heat conduction member connected to the first light emitting diode to absorb a heat from the first light emitting diode, and the second light emitting unit includes a second heat conduction member connected to the second light emitting diode to absorb a heat from the second light emitting diode. A third heat conduction member is connected to the first and second heat conduction members to discharge the heats from the first and second light emitting diodes.

Backlight assembly having light emitting diode package and display apparatus having the same

A display apparatus includes; a display panel which displays an image using a light, wherein the display panel is divided into a plurality of display areas corresponding to the image, a plurality of main-light source groups which each have a plurality of light sources, wherein the main-light source groups are arranged respectively corresponding to the display areas to provide the light thereto, a power source circuit is connected to each main-light source groups to provide a corresponding driving power to each of the main-light source groups, and a plurality of sub-light source groups, each of which is arranged between two adjacent main-light source groups and wherein each sub-light group receives the driving power applied to each of the two main-light source groups adjacent thereto to provide a light corresponding to an average brightness of the two adjacent main-light source groups to a border area between two adjacent display areas.

Growing community of inventors

Suwon-si, South Korea

Hee-Kwang Song