With Plural Diverse Light Sources (e.g., For Day And Night) Patents (Class 349/68)
-
Patent number: 12217715Abstract: A driver circuit includes a logic control component and a plurality of pins coupled to the logic control component. The plurality of pins include a clock pin, a data pin and at least two output pins. The clock pin is configured to receive a clock signal. The data pin is configured to receive, under control of the logic control component, a data signal in a period of an active level of the clock signal. The logic control component is configured to generate a driving control signal corresponding to each output pin according to the data signal, so as to control an electrical signal flowing through the output pin.Type: GrantFiled: November 16, 2021Date of Patent: February 4, 2025Assignees: BOE MLED Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Junwei Zhang, Wei Hao, Feifei Wang, Wengang Su, Kaimin Yin, Xingce Shang, Taotao Duan, Liguang Geng, Huangfei Cha, Yu Deng
-
Patent number: 11862079Abstract: A display device includes a display panel including a plurality of pixels, and an image capturing unit disposed below the plurality of pixels, wherein, when the image capturing unit is driven, the display panel is time-divisionally driven by dividing one frame into a plurality of sub-frame sections, and the image capturing unit is synchronized with the display panel to receive different color data for each section of the plurality of sub-frame sections.Type: GrantFiled: November 18, 2022Date of Patent: January 2, 2024Assignee: LG Display Co., Ltd.Inventors: Seung Taek Oh, Dong Gun Lee, Bo Yun Jung
-
Patent number: 11842699Abstract: Presented are apparatus, systems and methods for creating tuned color emissions, from lighting and displays, that can be electronically controlled to select a desirable spectrum of wavelengths safer for human vision, for optimal color reproduction, for energy/brightness efficiency, and more. Apparatus including light emitting chips, materials, package design, electronic control devices and circuits, lights, light-fixtures, display panels, visual computing devices and systems, are disclosed. An embodiment is described which is capable of operating in modes, where eye-safe colors are rendered with minimal harmful wavelengths, as well as at least one mode of operation favoring color rendering, and brightness configurations. An embodiment is operable to deliver a paper-like black-on-white viewing experience, in both night-time and day-time operating modes, with reduced high-energy blue-wavelength light spectra.Type: GrantFiled: April 5, 2022Date of Patent: December 12, 2023Assignee: PixelDisplay, Inc.Inventor: David Wyatt
-
Patent number: 11709305Abstract: A collimated backlight and an electronic display employ a light guide having angle-preserving scattering feature and an absorption collimator. The angle-preserving scattering feature is configured to scatter a portion of guided light out of the light guide as emitted light. The absorption collimator includes an absorption element and is configured to convert light provided by a light source into collimated light to be guided as the guided light. The electronic display includes an array of light valves and may be configured as a multiview display or a privacy display.Type: GrantFiled: January 20, 2022Date of Patent: July 25, 2023Assignee: LEIA INC.Inventors: David A. Fattal, Ming Ma
-
Patent number: 11636812Abstract: A degradation compensator including a compensation factor determiner configured to determine a compensation factor based on a distance between adjacent sub-pixels, and a data compensator configured to apply the compensation factor to a stress compensation weight to generate compensation data for compensating image data.Type: GrantFiled: March 14, 2019Date of Patent: April 25, 2023Assignee: Samsung Display Co., Ltd.Inventors: Hyo Min Kim, Gi Na Yoo, Sun Jin Joo, Ill Soo Park, Jae Hong Kim, Si Jin Sung, Jae Yong Lee
-
Patent number: 11579475Abstract: A method of controlling a display apparatus includes: when the display apparatus is in a privacy display mode, obtaining, by an image processor, a plurality of frames of display images according to a frame of original image, transmitting, by the image processor, the plurality of frames of images to a display controller; controlling, by the display controller, the display panel to display the plurality of frames of display images in sequence within a display time of the frame of original image, and controlling, by the display controller, the grating panel to form light-transmitting regions and non-light-transmitting regions that are alternately arranged when the display panel displays each frame of display image, so as to limit an exit angle of light exiting from the display side of the display apparatus, the exit angle being within a range of a privacy viewing angle.Type: GrantFiled: May 8, 2020Date of Patent: February 14, 2023Assignees: BOE MLED TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yinwei Chen, Haiwei Sun
-
Patent number: 11448926Abstract: The present invention provides a display, the display includes: an array substrate; a color filter substrate disposed above the array substrate; a backlight disposed on the color filter substrate; and a reflector disposed on the backlight.Type: GrantFiled: November 22, 2019Date of Patent: September 20, 2022Assignee: Huizhou China Star Optoelectronics Techmnology Co., Ltd.Inventors: Yongyuan Qiu, Linlin Fu, Cong Luo, Xi Cheng
-
Patent number: 11393417Abstract: An example apparatus includes a display panel, at least two backlight sources to backlight the display panel, and a controller to selectively activate a first backlight source of the at least two backlight sources when a first power source is detected and to selectively activate a second backlight source of the at least two backlight sources when a second power source is detected, the first backlight source and the second backlight source being different.Type: GrantFiled: July 19, 2018Date of Patent: July 19, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventor: Alois Bonnet
-
Patent number: 10854840Abstract: A window member includes a base substrate including a bottom surface, an upper surface opposed to the bottom surface, and a connecting surface between the bottom surface and the upper surface, and a blocking layer on the connecting surface, the blocking layer including an ultraviolet absorber.Type: GrantFiled: November 22, 2016Date of Patent: December 1, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Youngkwan Kim, Junghwan Kim, Sangeun Moon, Miso Park, Jungpyo Hong
-
Patent number: 10685594Abstract: A method and system for calibrating brightness variation in a display involve measuring brightness levels of light emitters in the display. The light emitters are divided into different groups based on the measured brightness levels. Each group is assigned a sub-frame duration. Groups with higher brightness are assigned shorter sub-frame durations than groups with lower brightness. Calibration information is stored for driving the light emitters such that during a frame period of the display, the light emitters are activated for durations corresponding to the sub-frame duration of their corresponding group.Type: GrantFiled: August 8, 2018Date of Patent: June 16, 2020Assignee: FACEBOOK TECHNOLOGIES, LLCInventors: William Padraic Henry, Ilias Pappas
-
Patent number: 10665180Abstract: An electronic display comprises a backlight unit and a liquid crystal (LC) layer, wherein the backlight combines and directs light from a plurality of light sources towards the LC layer, which controls an amount of light to be displayed. The light sources comprise at least two different types of light sources associated with different wavelength ranges, to provide improved spectrum intensity for a wider range of wavelengths. The intensity of the light sources may be adjusted based upon the input data for an image to be displayed. For example, the light sources may be dimmed based upon a determined amount of the received image data associated with a particular gray level.Type: GrantFiled: July 26, 2019Date of Patent: May 26, 2020Assignee: Facebook Technologies, LLCInventors: Jianru Shi, Fenglin Peng
-
Patent number: 10306729Abstract: An electronic device may be provided with a display having a backlight with light sources of different colors. The electronic device may include a color ambient light sensor that measures the color of ambient light and control circuitry that adjusts the color of light emitted from the backlight based on the color of ambient light. The light sources may include at least first and second light-emitting diodes that emit light having different color temperatures. The control circuitry may adjust the intensity of light emitted from the first light-emitting diode relative to the intensity of light emitted from the second light-emitting diode to produce a backlight color that more closely matches the color of ambient light. The first and second light-emitting diodes may include an ultraviolet light-emitting diode die and a blue light-emitting diode die that are mounted in a common semiconductor package.Type: GrantFiled: October 25, 2016Date of Patent: May 28, 2019Assignee: Apple Inc.Inventors: Cheng Chen, Jiaying Wu, Lu Zhang, David A. Doyle, Christopher E. Glazowski, Adria Fores Herranz, Chenhua You, Wei Chen, Jun Qi, John Z. Zhong
-
Patent number: 10235970Abstract: An electronic device includes a display including an emission unit, a light sensor configured to generate a signal indicative of ambient light level, a memory in which filtering instructions and emission control instructions are stored, and a processor configured to implement the filtering instructions to generate at least one filtered representation of the ambient light level in accordance with the signal. The processor is further configured to implement the emission control instructions to determine whether the ambient light level is increasing or decreasing, and to generate a control signal that, based on the at least one filtered representation, increases a brightness level of the emission unit at a first rate if the ambient light level is increasing and that decreases the brightness level at a second rate if the ambient light level is decreasing. The first rate is greater than the second rate.Type: GrantFiled: May 12, 2017Date of Patent: March 19, 2019Assignee: Microsoft Technology Licensing, LLCInventors: Jon Breazile, Ricardo Lopez-Barquilla, Yi-Min Huang
-
Patent number: 10115768Abstract: A light emitting device includes a first light emitting element, a second light emitting element, a third light emitting element, a fluorescent material, a film, a first lens, a second lens, and a third lens. The first light emitting element is to emit a first light having a peak wavelength in a range from 440 nm to 485 nm. The second light emitting element is to emit a second light having a peak wavelength in a range from 495 nm to 573 nm. The third light emitting element is configured to emit from a third front surface a third light having a peak wavelength in a range from 440 nm to 485 nm. The fluorescent material is provided on the third front surface and has a fluorescent side surface extending along a front-rear direction. The film is provided to surround the side surface and the fluorescent side surface.Type: GrantFiled: July 25, 2017Date of Patent: October 30, 2018Assignee: NICHIA CORPORATIONInventors: Masaki Hayashi, Tomohisa Kishimoto
-
Patent number: 9934731Abstract: A multiple backlight display system includes a display device having a light guide device including a plurality of edges. An edge backlight device is located along one of the edges of the light guide device. An array backlight device includes a plurality of array backlight zones that are located between the edges of the light guide device. A computing device receives an image for display on the display device and determines a plurality of brightness zones in the image. The computing device then generates backlight driving information using the plurality of brightness zones and provides the backlight driving information to the display device. The backlight driving information is configured to drive the array backlight device such a first array backlight zone provides light having a first brightness that is different than a second brightness of light that is provided by at least one second array backlight zone.Type: GrantFiled: November 25, 2015Date of Patent: April 3, 2018Assignee: Dell Products L.P.Inventor: Stefan Peana
-
Patent number: 9856702Abstract: A cutting element for a cutting tool. The cutting element may be at least partially made from a composite material including a carbide material, a binder material, and a plurality of diamond particles. The carbide material may be from 55 wt % to 97 wt % of a total weight of the composite material. The binder material may be from 3 wt % to 20 wt % of the total weight of the composite material. The plurality of diamond particles may be from 0.1% to 25% of the total weight of the composite material. The carbide material and the binder material may be combined and sintered together prior to being combined with the plurality of diamond particles, such that the carbide material and the binder material form a plurality of pellets having an average cross-sectional length from 10 ?m to 250 ?m.Type: GrantFiled: September 16, 2014Date of Patent: January 2, 2018Assignee: SMITH INTERNATIONAL, INC.Inventors: Sike Xia, Xin Deng
-
Patent number: 9817167Abstract: A protective film for a polarizing plate includes a base film and a primer layer on one or both sides of the base film. The protective film has a transmittance of about 90% or greater at a wavelength of 550 nm, and a ratio of the refractive index (B) of the primer layer to the refractive index (A) of the base film of about 0.6 to about 1.0. The protective film exhibits good adhesiveness to the polarizer and improves the transmittance of the polarizing plate. A polarizing plate including the same, and a liquid crystal display including the same are also disclosed.Type: GrantFiled: March 26, 2014Date of Patent: November 14, 2017Assignee: SAMSUNG SDI CO., LTD.Inventors: Kwang Ho Shin, Eun Su Park, Dong Yoon Shin, Hae Ryong Chung
-
Patent number: 9679534Abstract: An electronic device includes a display including an emission unit, a light sensor configured to generate a signal indicative of ambient light level, a memory in which filtering instructions and emission control instructions are stored, and a processor configured to implement the filtering instructions to generate at least one filtered representation of the ambient light level in accordance with the signal. The processor is further configured to implement the emission control instructions to determine whether the ambient light level is increasing or decreasing, and to generate a control signal that, based on the at least one filtered representation, increases a brightness level of the emission unit at a first rate if the ambient light level is increasing and that decreases the brightness level at a second rate if the ambient light level is decreasing. The first rate is greater than the second rate.Type: GrantFiled: February 13, 2015Date of Patent: June 13, 2017Assignee: Microsoft Technology Licensing, LLCInventors: Jon Breazile, Ricardo Lopez-Barquilla, Yi-Min Huang
-
Patent number: 9666141Abstract: A display apparatus includes a display panel including a first subpixel having a first primary color, a second subpixel having a second primary color; and a transparent subpixel; a panel driver which sets grayscale data of the first subpixel, the second subpixel and the transparent subpixel; a light source part which provides light to the display panel, where the light source comprises a first light source and a second light source having colors different from each other; and a light source driver which turns on the first light source during a first subframe, turns on the second light source during a second subframe, and turns on the first light source during a third subframe, and a first frame comprises the first subframe, the second subframe and the third subframe.Type: GrantFiled: May 7, 2013Date of Patent: May 30, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jae Byung Park, Seon-Tae Yoon, Jae-Woong Kang, Hae-Il Park, Sung-Tae Shin, Mun-Ki Sim, Kwang-Keun Lee, Hyun-Min Cho
-
Patent number: 9529229Abstract: A backlight unit includes a substrate, a plurality of first light sources, a plurality of second light sources, a first wiring portion, a second wiring portion, a first connector and a second connector. The first light sources are disposed on the substrate. The second light sources are disposed on the substrate in a single line. The first wiring portion extends along a length direction on a first peripheral area of the substrate and is connected to the first light sources. The second wiring portion extends along the length direction on a second peripheral area of the substrate and is connected to the second light sources. The first connector is disposed on a first end portion of the substrate and is electrically connected to the first wiring portion. The second connector is disposed on a second end portion of the substrate and is electrically connected to the second wiring portion.Type: GrantFiled: August 29, 2013Date of Patent: December 27, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jeong-Ki Kim, Jin-Soo Shin
-
Patent number: 9519168Abstract: A display apparatus is provided. The display apparatus includes a display panel which displays an image; a top chassis and a bottom chassis which house the display panel; and a plurality of light-emitting boards which are installed on an inner surface of the bottom chassis, each of the light-emitting boards including a main printed circuit board (PCB) that extends in a longitudinal direction and light source packages installed on the main PCB, and the light source packages are arranged to be farther from a first longitudinal edge of the main PCB than a second longitudinal edge of the main PCB.Type: GrantFiled: April 24, 2013Date of Patent: December 13, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Suk-ju Choi, Kye-hoon Lee, Yong-hun Kwon, Young-min Lee, Kun-ho Cho, Gil-tae Hur
-
Patent number: 9520093Abstract: The disclosure relates to a driving method of liquid crystal display panel. The liquid crystal display panel comprises a plurality of display units, the display unit comprises two adjacent pixel units. Wherein the driving method comprises: receiving input video data; determining that whether the input video data are within a plurality of video data intervals of predetermined complexion frame; if the input video data is within a certain video data intervals of predetermined complexion frame, then obtain high video data and low video data according to the input video data; providing the high video data to one of the pixel units, and providing the low video data to the other pixel units. The disclosure also relates to a liquid crystal display panel driven by the driving method.Type: GrantFiled: January 20, 2015Date of Patent: December 13, 2016Assignee: Shenzhen China Star Optoelectronics Technology Co., LtdInventor: Lixuan Chen
-
Patent number: 9467668Abstract: Scanning beam display systems that scan one servo beam and an excitation beam onto a screen that emits visible light under excitation of the light of the excitation beam and control optical alignment of the excitation beam based on positioning of the servo beam on the screen via a feedback control.Type: GrantFiled: January 7, 2016Date of Patent: October 11, 2016Assignee: Prysm, Inc.Inventor: Roger A. Hajjar
-
Patent number: 9411202Abstract: A liquid crystal display device less influenced by static electricity comprises a liquid crystal display element which forms a display part having inner surfaces of a pair of insulating substrates provided with transparent electrodes; a circuit substrate conductively connected to the liquid crystal display element via a lead terminals; and a conductive part formed to surround the transparent electrode. The conductive part is provided on the insulating substrate so as to avoid the positions where the lead terminals are arranged. Further included are a display panel through which the display part is visible; a first earth terminal conductively connected a first conductive pattern of the conductive part and in contact with the display panel; and a second earth terminal of which is conductively connected to a seventh conductive pattern of the conductive part to a grounding part.Type: GrantFiled: January 12, 2012Date of Patent: August 9, 2016Assignee: NIPPON SEIKI CO., LTD.Inventor: Bunkichi Kaneko
-
Patent number: 9354735Abstract: A light sensitive display.Type: GrantFiled: October 26, 2007Date of Patent: May 31, 2016Assignee: Apple Inc.Inventors: Adiel Abileah, Willem den Boer, Pat Green
-
Patent number: 9349325Abstract: It is an object to provide a transmissive liquid crystal display device in which power consumption is reduced and deterioration in display quality is suppressed. As a backlight, a surface-emission light source is employed. The light source is a light source which performs surface light emission, so that the light emission area is large. Accordingly, the backlight can effectively radiate heat. Thus, even in the case where an image signal is not input to a pixel for a long period, the pixel can hold the image signal. In other words, both a reduction in power consumption and a suppression of deterioration in display quality can be realized.Type: GrantFiled: April 25, 2011Date of Patent: May 24, 2016Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Jun Koyama
-
Patent number: 9280935Abstract: A mobile image display apparatus comprising a backlit display device, an ambient light collector, an image forming device for outputting image signals to form images on an image display screen of the backlit display device, and an image viewing chamber defined by an opaque housing; wherein the ambient light collector is for collecting ambient light from exterior surroundings to provide back illumination to the backlit display device.Type: GrantFiled: January 3, 2012Date of Patent: March 8, 2016Assignee: Dayton Technologies Ltd.Inventor: Paul Anthony Yuen
-
Systems and methods for increasing spatial or temporal resolution for dual modulated display systems
Patent number: 9224323Abstract: Dual modulation display systems comprising a first modulation layer and a second modulation layer are disclosed, such that the first modulation layer and the second modulation layer are offset by a desired distance. In one embodiment, the offset distance may be an actual spatial offset distance in one, two or a preferred direction. In another embodiment, the offset distance may be a rotational offset between the two layers. In yet another embodiment, the offset may be a temporal offset between the images appearing on the first modulation layer and the second modulation layer. In yet another embodiment, the offset may be a combination of spatial, rotational and/or temporal offsets. The display system may comprise a controller capable of mapping input image data onto the first and second modulation layers via intermediate signals and the intermediate signals may be some function of the offset.Type: GrantFiled: April 28, 2014Date of Patent: December 29, 2015Assignee: Dolby Laboratories Licensing CorporationInventors: Ning Xu, Gopal Erinjippurath -
Patent number: 9195346Abstract: A touch panel includes a light guide plate, a light emitting device, a light sensing module, and a controller. The light guide plate has a touch plane. The light emitting device applies an incident light to the light guide plate, and at least a portion of the incident light is completely reflected in the light guide plate. When an object touches the touch plane, a total internal reflection of at least a portion of the incident light at a touch point is frustrated. The light sensing module detects a wavelength of an ambient light. The controller controls the light emitting device according to the ambient light wavelength detected by the light sensing module to adjust an incident light wavelength of the incident light emitted by the light emitting device so that the incident light wavelength differs from the ambient light wavelength.Type: GrantFiled: December 17, 2013Date of Patent: November 24, 2015Assignee: WISTRON CORPORATIONInventor: Tung-Ming Wu
-
Patent number: 9190004Abstract: An LCD device is disclosed which includes: at least one sensor module configured to sense an amount of external light; a liquid crystal display panel configured to display images; at least one light source module disposed under the liquid crystal display panel and configured to emit light; and at least one light guide plate configured to convert light from the at least one light source module into two-dimensional light and apply two-dimensional light to the liquid crystal display panel. The at least one light source module includes infrared LEDs and visible LEDs which are selectively driven according to a sensed light quantity sensed by the at least one sensor module and allow infrared light and visible light to be selectively emitted.Type: GrantFiled: December 27, 2012Date of Patent: November 17, 2015Assignee: LG Display Co., Ltd.Inventors: Jae Jung Han, Se Min Lee, Joo Young Yeon
-
Patent number: 9134570Abstract: There is provided a color-regulating device for illumination. The color-regulating device includes a light-valving structure for adjusting a flux ratio of outgoing light through the light-valving structure to incident light entering the light-valving structure, and a color-adjusting structure having a wavelength-band converting element for changing incident light with a wavelength band into outgoing light with a different wavelength band through the element. Wherein, the light-valving structure and the color-adjusting structure do not overlap on the traveling path of the light emitted from the light source. Mixing the outgoing light of the light source passing through the light-valving structure with the outgoing light of the light source passing through and at least a portion thereof converted by the color-adjusting structure with a different wavelength band yields a color-adjusted light of different color temperature from that of the light source.Type: GrantFiled: May 24, 2013Date of Patent: September 15, 2015Assignee: PLANCK CO., LTD.Inventors: Chin-Yu Chao, Chiu-Chang Huang, Chieh-Hsiung Kuan, Vin-Cent Su
-
Patent number: 9125248Abstract: An intelligent LED drive power has an EMI filter, two AC/DC constant current units, a microcontroller, a switch unit, two state detect circuits and an assistant power. The input and output of the constant current units are alternatively connected to the output of the EMI filter and the LED light source through the switch unit. The inputs of each state detect circuits are separately connected to the output of one of the constant current units. The outputs of each state detect circuit are separately connected to the microcontroller input; the microcontroller output is connected to the switch unit input; the assistant power input is connected to the EMI filter output. The assistant power output is connected to the microcontroller. The switch controls the two AC/DC constant current units by detecting the mains supply input voltage and the AC/DC constant current unit output voltage and current.Type: GrantFiled: November 15, 2012Date of Patent: September 1, 2015Assignee: XIAMEN XING HENGLONG LIGHTING TECHNOLOGY CO., LTD.Inventor: Huaqing Huang
-
Patent number: 9103949Abstract: The present invention provides a direct light backlight module with solar light assistance, which comprises a backboard. The backboard is provided with a waveguide. A light source is disposed under the waveguide. An optical film module is disposed above the waveguide and faces the light emitted from the direct light source. An assisting light source device is provided and which collects solar light and direct it to an optical film module. The present invention further provides a liquid crystal display device with the direct light backlight module with assisting solar light. With the provision of the assisting light source, the solar light can be used as an assisting light source making the backlight module and the liquid crystal display device made therefrom become more environmental friendly.Type: GrantFiled: November 15, 2012Date of Patent: August 11, 2015Assignee: Shenzhen China Star Optoelectronics Technology Co., LtdInventors: Che-Chang Hu, Hu He
-
Publication number: 20150130693Abstract: A backlight assembly having a light emitting module and a lower receiving container, the light emitting module including a first light source configured to generate a first light and a quantum dot rail configured to generate a second light from the first light the light emitting module is disposed under a display panel to provide the display panel with the second light, and the lower receiving container is configured to receive the light emitting module and the display panel6bType: ApplicationFiled: June 24, 2014Publication date: May 14, 2015Inventors: Hyun-Min Cho, Kwang-Keun Lee, Jong-Hyuk Kang, Jae-Byung Park, Baek-Hee Lee
-
Patent number: 9019445Abstract: Uneven brightness is less likely to occur in lighting devices at low cost. A backlight unit 12 includes LEDs 17, a chassis 14 having a bottom plate 14a and housing the LEDs 17, and an LED drive controller 24 controlling drive of the LEDs 17. The LEDs 17 are arranged in a matrix in row and column directions (X-axis direction and Y-axis direction) along the bottom plate 14a, forming respective LED groups 25 each along the row direction. The LED groups 25 include a middle LED group 28 and an end side LED group 29. The middle LED group 28 is located in a middle portion of the bottom plate 14a in the column direction group and the end side LED group 29 is located closer to an end of the bottom part from the middle portion group. The LED drive controller 24 controls light of at least one of the middle LED group 28 and the end side LED group 29 such that the end side LED group 29 has relatively high brightness and the middle LED group 28 has relatively low brightness.Type: GrantFiled: November 17, 2010Date of Patent: April 28, 2015Assignee: Sharp Kabushiki KaishaInventors: Takaharu Shimizu, Mamoru Takaya
-
Patent number: 9019448Abstract: A display apparatus includes a light guide plate to emit light that enters through a side surface of the light guide plate through an upper surface of the light guide plate, a light source arranged on at least one side of the light guide plate, a reflection plate arranged under the light guide plate, a color filter layer arranged above the light guide plate, and an optical shutter arranged above the color filter layer to transmit or block at least a part of light according to electric control, wherein the color filter layer includes a transmission type color filter to transmit light in a particular wavelength band and reflect light in other wavelength bands.Type: GrantFiled: January 28, 2011Date of Patent: April 28, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Moon-gyu Han, Hong-seok Lee, Chang-gyun Shin
-
Publication number: 20150109560Abstract: A liquid crystal display (LCD) and a display device are disclosed. The LCD is provided with a plurality of pixel units; each pixel unit includes a plurality of sub-pixel units for displaying different colors; quantum dot (QD) layers capable of allowing backlight to run through are disposed at positions of an array substrate, corresponding to the sub-pixel units of at least one color of the pixel units; the QD layers are excited by ultraviolet light in sunlight and emit light which at least is of the color of the sub-pixel units; and color filters are disposed between the QD layers and the opposing substrate. The LCD has enhanced display brightness and higher outdoor viewability in the case of outdoor display.Type: ApplicationFiled: October 10, 2013Publication date: April 23, 2015Inventors: Renwei Guo, Xue Dong, Jian Guo
-
Publication number: 20150015828Abstract: A transflective image display apparatus includes a transmissive polarizing plate; a color filter disposed below the transmissive polarizing plate and including a white color filter and at least two of a red color filter, a green color filter, and a blue color filter; a liquid crystal display panel disposed below the color filter; an electrical polarization control unit disposed below the liquid crystal display panel; a reflective polarizing plate disposed below the electrical polarization control unit; a backlight unit disposed below the reflective polarizing plate and including a white light source and a light source configured to emit light corresponding to at least one of the red color filter, the green color filter, and the blue color filter; and a controller configured to control the liquid crystal display panel, the electrical polarization control unit, and the backlight unit periodically in at least two states according to a predetermined condition.Type: ApplicationFiled: January 30, 2014Publication date: January 15, 2015Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dae-sik KIM, Seong-woo CHO, Sergey SHESTAK, Jong-hoon JUNG
-
Patent number: 8934064Abstract: A three-dimensional display apparatus, including a backlight module, two panels, and a synchronization device, is provided. The backlight module has a light emitting side and sequentially emits a plurality of color light. Both panels are disposed at the light emitting side, and the first panel is disposed between the backlight module and the second panel. The first panel includes a first polarizer and a first liquid crystal substrate, and the first polarizer is disposed between the backlight module and the first liquid crystal substrate. The second panel includes a second liquid crystal substrate and a second polarizer, and the second liquid crystal substrate is disposed between the second polarizer and the first panel. The synchronization device is electrically connected to the backlight module and the two liquid crystal substrates. During a frame time, the backlight module and the two liquid crystal substrates are synchronously driven by the synchronization device.Type: GrantFiled: November 26, 2012Date of Patent: January 13, 2015Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Wen-Chih Tai, Shian-Jun Chiou, Chia-Lin Liu, Chi-Neng Mo
-
Patent number: 8902378Abstract: In a liquid crystal display (LCD) device, an LED PCB with the reflection layer formed on surface thereof is installed at an upper side of the LED array and a reflection plate extends such that it sufficiently covers the lower portion of the LED array to thus make light emitted from the light source incident to its maximum level, thus coping with the reduction in the quantity of light resulting from making the LCD device thinner. The LCD device includes: a liquid crystal panel; an LED array supplying light to the liquid crystal panel; a light guide plate installed in a direction in which the LED outputs light, and guiding light; a reflection plate formed between the LED array and a lower portion of a lower cover; and an LED PCB attached to an upper portion of the lower cover at an upper side of the LED array and having a reflection layer formed at a side facing the light guide plate.Type: GrantFiled: July 9, 2010Date of Patent: December 2, 2014Assignee: LG Display Co., Ltd.Inventors: Sang-Hyun Lee, Won-Taek Moon, Yong-Ik Hwang
-
Patent number: 8885120Abstract: A color Liquid Crystal display (LCD) device for displaying a color image using at least four different primary colors, the device including an array of Liquid Crystal (LC) elements, driving circuitry adapted to receive an input corresponding to the color image and to selectively activate the LC elements of the LC array to produce an attenuation pattern corresponding to a gray-level representation of the color image, and an array of color sub-pixel filter elements juxtaposed and in registry with the array of LC elements such that each color sub-pixel filter element is in registry with one of the LC elements, wherein the array of color sub-pixel filter elements comprises at least four types of color sub-pixel filter elements, which transmit light of the at least four primary colors, respectively.Type: GrantFiled: April 15, 2008Date of Patent: November 11, 2014Assignee: Genoa Color Technologies Ltd.Inventors: Ilan Ben-David, Shmuel Roth, Moshe Ben-Chorin
-
Patent number: 8866991Abstract: A tiled display device includes a plurality of display devices defining an image display part, the image display part divided into a central portion and an outer edge portion, a support frame tiling the plurality of display devices side by side, and a plurality of light guides, each light guide disposed on each of the display devices, wherein the brightness of an image displayed at the outer edge portion is higher than that of an image disposed at the central portion.Type: GrantFiled: January 26, 2010Date of Patent: October 21, 2014Assignee: LG Display Co., Ltd.Inventors: Hyun Suk Jin, Min Joo Kim
-
Publication number: 20140300846Abstract: A display system, having an emissive body, emitting light in a way that is color temperature controllable. The light emission can be from zones. The emissive body can be a FIPEL type device with a first transparent conductive coating over a light emitting substrate. The zones are each separately controllable for color temperature.Type: ApplicationFiled: April 9, 2013Publication date: October 9, 2014Applicant: VIZIO INC.Inventor: Matthew McRae
-
Patent number: 8850714Abstract: A chromaticity correction device corrects chromaticity of a video signal displayed on a display panel of a display device to correspond to a change in a luminance value of the display panel. The chromaticity correction device includes a luminance detection unit which detects the luminance value, a backlight driving level detection unit which detects a backlight driving level, a temperature detection unit which detects an internal device temperature or an ambient temperature, a reference luminance value calculation unit which estimates a reference luminance value in a characteristic of an initial state, a chromaticity calculation unit which obtains a chromaticity change amount of white point chromaticity and estimated white point chromaticity that is an estimated value of current white point chromaticity, a chromaticity correction value calculation unit which obtains a chromaticity correction value and a chromaticity correction circuit which corrects the chromaticity of the video signal.Type: GrantFiled: September 30, 2011Date of Patent: October 7, 2014Assignee: NEC Display Solutions, Ltd.Inventor: Katsuyuki Matsui
-
Patent number: 8847877Abstract: An outdoor readable liquid crystal display device (200) includes a liquid crystal panel (210), a backlight device (220) and a light source control device. The backlight device (220) includes a plurality of red light emitting diodes (220r), green light emitting diodes (220g) and blue light emitting diodes (220b). The light source control device is used to adjust the backlight device (220) based on the light intensity of ambient light. When the light intensity of ambient light is lower than a predetermined light intensity of the liquid crystal display device (200), the red light emitting diodes (220r), the green light emitting diodes (220g) and the blue light emitting diodes (220b) of the backlight device (220) are sequentially energized to emit lights at a predetermined time lag.Type: GrantFiled: December 18, 2013Date of Patent: September 30, 2014Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.Inventors: Willem Den Boer, Xuhui Peng, Zhihua Ling, Zhongshou Huang
-
Patent number: 8836893Abstract: A light emitting device array includes a substrate including a first region and a second region that is inclined with respect to the first region, a first light emitting device package arranged on the first region, and a second light emitting device package that is arranged on the second region and is inclined with respect to the first light emitting device package at an inclination angle between 90° and 160°.Type: GrantFiled: March 15, 2012Date of Patent: September 16, 2014Assignee: LG Innotek Co., Ltd.Inventors: Il Seo, Hongboem Jin, Sangwoo Lee
-
Patent number: 8810750Abstract: A backlight unit and a display device including the backlight unit are provided. The backlight unit includes at least one light source unit and a light guide plate. The light source unit provides collimated light and controls light such that it is emitted in a plurality of light exit directions.Type: GrantFiled: July 8, 2011Date of Patent: August 19, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Yong-kweun Mun, Yoon-sun Choi, Hong-seok Lee
-
Publication number: 20140226109Abstract: A white light emitting diode includes a blue light emitting diode (“LED”) light source, and a light conversion layer which converts incident light from the blue LED light source into white light. The light conversion layer includes a green light emitting semiconductor nanocrystal and a red light emitting semiconductor nanocrystal. The white light emitting diode has a red, green and blue color (“RGB”) color locus which is within a chrominance error range (±4?E*ab±2?E*ab) locus from the constant hue locus of each of sRGB color coordinates, or within a chrominance error range (±4?E*ab±2?E*ab) locus from the constant hue locus of each of AdobeRGB color coordinates.Type: ApplicationFiled: April 17, 2014Publication date: August 14, 2014Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seoung-Jae IM, Seo-Young CHOI, Eun-Joo JANG
-
Patent number: 8804076Abstract: The present invention provides a liquid crystal display device including a liquid crystal panel. The liquid crystal panel has a plurality of pixel regions, and the liquid crystal panel includes a first substrate, a second substrate, a liquid crystal layer, and a light-absorbing layer. The second substrate and the first substrate are disposed opposite to each other, and the liquid crystal layer is disposed between the first substrate and the second substrate. The light-absorbing layer is disposed between the first substrate and the second substrate in the pixel regions, and the light-absorbing layer is configured to absorb a light having a wavelength within a range between 380 nm and 560 nm.Type: GrantFiled: June 26, 2012Date of Patent: August 12, 2014Assignee: HannStar Display Corp.Inventors: Chih-Pin Lin, Chao-Hui Wu
-
Patent number: RE45229Abstract: A backlight for a color liquid crystal display apparatus includes a first light-guide plate; a first incidence part for receiving light of a first primary color in a first area on a first lateral surface of the first light-guide plate; a second incidence part for receiving light of a second primary color light in a second area on a second lateral surface that is opposite to the first lateral surface of the first light-guide plate; and a third incidence part for receiving light of a third primary color in a third area on a rear surface of the first light-guide plate. The number of superposition steps is thereby reduced, light-guide plates can easily be superposed onto an LCD panel with high accuracy, and a lightweight and inexpensive backlight for a color liquid crystal display apparatus can be obtained.Type: GrantFiled: November 9, 2011Date of Patent: November 4, 2014Assignee: Getner Foundation LLCInventor: Mitsuasa Takahashi