Flip chip, surface light source, and display device using surface light source thereof

    公开(公告)号:US12021176B2

    公开(公告)日:2024-06-25

    申请号:US16972620

    申请日:2018-11-01

    Inventor: Yong Yang

    CPC classification number: H01L33/60 G02B5/3058 H01L25/0753

    Abstract: A flip chip, a surface light source, and a display device using the surface light source are described. The flip chip comprises a metal grid layer having metal wire grid polarizers which are arranged in parallel; a wafer substrate arranged under the metal wire grid polarizer of the metal grid layer; a N-doped layer and a negative-electrode wire, wherein the N-doped layer and the negative-electrode wire are arranged under the wafer substrate; a quantum well layer arranged under the N-doped layer; a P-doped layer arranged under the quantum well layer; an optical activity material layer arranged under the P-doped layer; a reflecting layer arranged under the optical activity material layer; and a positive-electrode wire arranged under the reflecting layer. The present disclosure improves the light-emitting efficiency of the surface light source in large-angle direction and the visual angle range of the surface light source is expanded.

    Display device
    32.
    发明授权

    公开(公告)号:US11320689B1

    公开(公告)日:2022-05-03

    申请号:US16955095

    申请日:2020-04-03

    Inventor: Yong Yang

    Abstract: The present disclosure provides a display device, which is divided into a camera placement area and a non-camera placement area, including a backlight module, a display module, and a camera. The display module includes an array substrate and a color filter substrate opposite to the array substrate. The array substrate and the color filter substrate together form a cell. Wherein, the display module provides fingerprint sensors corresponding to the camera placement area of the display device.

    Driving method of display panel and display device

    公开(公告)号:US11189239B2

    公开(公告)日:2021-11-30

    申请号:US16772845

    申请日:2020-02-25

    Inventor: Yong Yang

    Abstract: A driving method of a display panel and a display device are provided, wherein the driving method of the display panel can make a sub-pixel to be driven disposed in a splicing region display normally by compensating the sub-pixel to be driven disposed in the splicing region. A dark line appearing in the splicing region is eliminated, and a technical problem of splicing dark line appearing in the splicing region of a display device adopting spliced mini-LEDs is alleviated.

    Manufacturing method for backlight source

    公开(公告)号:US11000911B2

    公开(公告)日:2021-05-11

    申请号:US16320102

    申请日:2018-12-04

    Inventor: Yong Yang

    Abstract: The present invention provides a method for manufacturing a backlight source. The method for manufacturing a backlight source according to the present invention forms a plurality of tin soldering pattern groups on a substrate. Each tin soldering pattern group includes tin soldering patterns spaced from one another, and the tin soldering patterns are in a closed ring shape. The Mini-LEDs are disposed on the tin soldering pattern groups respectively. The substrate is placed in the space having a varying magnetic field. The circuit of the tin soldering patterns in the tin soldering pattern groups generates the induced current for rapid heating and melting, to solder the Mini-LEDs on the substrate. The soldering speed is improved, the process efficiency is high, the process cost is low, and the light effect of the backlight source is effectively ensured.

    Liquid crystal display, low blue light display control system thereof and display method for low blue light

    公开(公告)号:US10747056B2

    公开(公告)日:2020-08-18

    申请号:US15752202

    申请日:2018-01-17

    Inventor: Yong Yang

    Abstract: The present invention provides a liquid crystal display, a low blue light display control system and a display method for low blue light. The display method for a low blue light of a liquid crystal display comprising the steps of: performing division of a backlight source to obtain a plurality of backlight locations, wherein the plurality of backlight locations comprises a first emission peak and a second emission peak, and the second emission peak is larger than the second emission peak; calculating blue light ratios corresponding to display images of each backlight location of the plurality of backlight locations, respectively, and obtaining the blue light ratio of each backlight location; and driving a first light emission peak and/or a second light emission peak in the backlight location according to the blue light ratio of each backlight location for not shifting the white point coordinate and decreasing the display color gamut.

    Method and system for increasing colour gamut of display device

    公开(公告)号:US10600376B2

    公开(公告)日:2020-03-24

    申请号:US15579151

    申请日:2017-11-21

    Abstract: A method and system for increasing colour gamut of display device are provided, the method comprising following steps. Obtaining RBG value of image. Transferring RGB value from RGB space to HSV space for obtaining saturation of each solid color images of image. Determining whether if percentage of an area which saturation of each natural color is greater than first threshold value in solid color image is occupied on an area of whole image is greater than second threshold value. Adjusting RGB value of solid color image for obtaining adjusted RGB value of adjusted solid color image, if percentage of an area which saturation of natural color is greater than first threshold value in solid color image is occupied on an area of whole image is greater than second threshold value. Outputting adjusted RGB value of the adjusted solid color image.

    Nanoimprint template, a method of making the same and applications thereof

    公开(公告)号:US10520807B2

    公开(公告)日:2019-12-31

    申请号:US15579441

    申请日:2017-11-21

    Abstract: A nanoimprint template is provided, including a main template, a plurality of photoresist micro-structures arranged on the main template, and a fluororubber polymer layer coated on an outer layer of the photoresist micro-structures. The fluororubber polymer layer has a bonding function with the main template, so as to fixedly connect to the surface of the main template. The nanoimprint template can not only protect the photoresist microstructure therein, but also prevent the nanoimprint template from being deformed during operating, thereby improving the process quality. Moreover, the surface oil resistance and corrosion resistance of the nanoimprint template is improved, so that the surface has lower surface energy, which can effectively improve the degumming problem during operating. A manufacturing method of the nanoimprint template and the application thereof in manufacturing a microstructure substrate are also provided, the microstructure size and shape of the formed microstructure substrate can be ensured.

    Method and system for improving ghosting in display screen

    公开(公告)号:US10515608B2

    公开(公告)日:2019-12-24

    申请号:US15579390

    申请日:2017-11-14

    Inventor: Yong Yang

    Abstract: The present disclosure provides a method for improving ghosting in a display screen, including the steps of: acquiring a brightness of a screen to be displayed and an average brightness of a ghosting; acquiring a position of the ghosting in the display device, if the average brightness of the ghosting is greater than the brightness of the screen to be displayed; and processing the screen to improve a brightness of the screen corresponding to the ghosting in the screen to be displayed. The present disclosure further provides a system for improving ghosting in a display screen. The present disclosure utilizes the software algorithm to locally adjust the brightness at a position with high reflection and high glare in the display screen so as to enhance the local brightness of the display device and enhance the readability of the display screen and achieve the anti-glare effect and the anti-reflection effect.

    Backlight module and liquid crystal display device

    公开(公告)号:US10416496B2

    公开(公告)日:2019-09-17

    申请号:US15545695

    申请日:2017-06-26

    Abstract: A backlight module and liquid crystal display device are disclosed. The backlight module includes: at least one first light-emitting unit having a first blue light-emitting chip; at least one second light-emitting unit having a second blue light-emitting chip, wherein, an emission peak wavelength of the second blue light-emitting chip is greater than an emission peak wavelength of the first blue light-emitting chip; and a control circuit used for dynamic adjusting a brightness of the first light-emitting unit and the second light-emitting unit according to the blue saturation. The present invention can dynamically adjust the output amount of the blue light according to the blue saturation so that the present invention can selectively decrease the blue light when maintaining the display brightness and chroma.

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