Backlight modules and display devices

    公开(公告)号:US10012786B2

    公开(公告)日:2018-07-03

    申请号:US15173296

    申请日:2016-06-03

    CPC classification number: G02B6/0053 G02B6/0051 G02B6/0088

    Abstract: A backlight module includes a lamp set, a light guiding plate, a diffuser, a top prism sheet, and a down prism sheet. The diffuser includes a first end and a second end opposite to each other, the first end of the diffuser is closer to the lamp set than the second end, and the diffuser includes a first end and a second end opposite to each other. The diffuser includes the overlapped portion stacked with the top/down prism sheets and the extended portion extending from the overlapped portion. On the first end of the diffuser, the light beams emitted by the light guiding plate may be processed by the first extended portion, instead of being emitted out directly. This can avoid the bright lines occurred by the backlit so as to reduce the optical leakage. In addition, a display device is also disclosed.

    LIQUID CRYSTAL DISPLAY, BACKLIGHT MODULE AND METHOD FOR ASSEMBLING THE SAME

    公开(公告)号:US20190004244A1

    公开(公告)日:2019-01-03

    申请号:US15566941

    申请日:2017-08-02

    Inventor: Qian Chen

    Abstract: The present application provides a liquid crystal display, a backlight module and a methods for assembling the same. The backlight module includes a back plate, a light guide plate, an optical film group and a light source. The back plate includes a bottom plate, and the light guide plate and the optical film group are sequentially disposed on the bottom plate from bottom to top. The light source includes a number of LED lamps disposed on the bottom plate and opposite to a light entrance surface of the light guide plate. One surface of the bottom plate facing the light guide plate is coated with a reflective material. The back plate of the backlight module according to the present application includes a bottom plate and one surface of the bottom plate facing the light guide plate is coated with a reflective material.

    MOLD-FRAME-FREE LIQUID CRYSTAL DISPLAY DEVICE AND ASSEMBLY METHOD THEREOF

    公开(公告)号:US20180106958A1

    公开(公告)日:2018-04-19

    申请号:US15111823

    申请日:2016-05-23

    Abstract: The present invention provides a mold-frame-free liquid crystal display device and an assembly method thereof, in which a lower surface of a liquid crystal display panel (2) is provided with a first double-sized adhesive tape (110) that circumferentially surrounds an effective display area (21) and an optical film assembly (15) is adhesively attached to the first double-sized adhesive tape (110) and a reflector plate (14) and a light guide plate (11) are sequentially disposed inside the terminal frame (4) and, finally, the liquid crystal display panel (2) that includes the optical film assembly (15) attached thereto and the terminal frame (4) with the reflector plate (14) and the light guide plate (11) disposed therein are assembled together, whereby a backlighting mold frame can be omitted, the cost can be reduced, and a bezel width of a liquid crystal display device can be effectively reduced to realize narrow bezel of the liquid crystal display device, increase product competition power, allow the backlight module to be assembled with the liquid crystal display panel and the terminal frame to increase the degree of integration of the liquid crystal display panel and improve accuracy of assembly.

    Liquid crystal screen and liquid crystal display

    公开(公告)号:US09977282B2

    公开(公告)日:2018-05-22

    申请号:US15143623

    申请日:2016-05-01

    Abstract: A liquid crystal screen includes an upper polarization sheet, an upper glass plate, a lower glass plate, and a lower polarization sheet that are stacked sequentially. The upper polarization sheet and the lower polarization sheet are bonded to each other by adhesive to form a box having an open end. The upper glass plate and the lower glass plate are received in the box. Side faces of the upper glass plate and the lower glass plate are covered by the adhesive. The upper glass plate and the lower glass plate project out of the upper polarization sheet and the lower polarization sheet from an edge thereof. Areas between the upper and lower glass plates and the edge of the upper and slower polarization sheets are bonded by the adhesive. A liquid crystal display is also provided.

    Backlight module and display device

    公开(公告)号:US10401551B2

    公开(公告)日:2019-09-03

    申请号:US15556464

    申请日:2017-06-23

    Abstract: The present invention provides a backlight module and a display device, the backlight module comprises a light guide plate, a light bar and a light blocking tape, the light guide plate comprises a light entrance surface and three peripheral side surfaces, the light bar provides a light source for the light guide plate on one side of the light entrance surface, and the light blocking tape covers the three peripheral side surfaces to prevent light that from the light source entering the light guide plate from being emitted from three peripheral side surfaces. So that there is not light leakage in the three peripheral side surfaces, the plastic frame of the prior art for providing to prevent leakage of the three peripheral side surfaces, is eliminated, thereby reducing the weight and width of the backlight module to achieve which to be light and narrow, and reducing production costs.

    Backlight module and liquid crystal display

    公开(公告)号:US10261240B2

    公开(公告)日:2019-04-16

    申请号:US15038722

    申请日:2016-04-21

    Abstract: A backlight module includes a light guide plate including a light incident surface having first and second light incident sections and a light propagation track that extends from the first light incident section into the light guide plate and delimits a light propagation path and is formed with an opening. A light bar includes first and second light sources respectively corresponding to the first and second light incident sections to allow light to enter the light propagation path to be reflected by the light propagation track for outward emission and allow light to enter the light guide plate for outward emission from the light emission surface. A control circuit is electrically connected to the first light source and the second light source for controlling ON/OFF states of the first light source and the second light source thereby allowing for displaying in a sectionized fashion.

    Mold-frame-free liquid crystal display device and assembly method thereof

    公开(公告)号:US10048435B2

    公开(公告)日:2018-08-14

    申请号:US15111823

    申请日:2016-05-23

    Abstract: The present invention provides a mold-frame-free liquid crystal display device and an assembly method thereof, in which a lower surface of a liquid crystal display panel (2) is provided with a first double-sized adhesive tape (110) that circumferentially surrounds an effective display area (21) and an optical film assembly (15) is adhesively attached to the first double-sized adhesive tape (110) and a reflector plate (14) and a light guide plate (11) are sequentially disposed inside the terminal frame (4) and, finally, the liquid crystal display panel (2) that includes the optical film assembly (15) attached thereto and the terminal frame (4) with the reflector plate (14) and the light guide plate (11) disposed therein are assembled together, whereby a backlighting mold frame can be omitted, the cost can be reduced, and a bezel width of a liquid crystal display device can be effectively reduced to realize narrow bezel of the liquid crystal display device, increase product competition power, allow the backlight module to be assembled with the liquid crystal display panel and the terminal frame to increase the degree of integration of the liquid crystal display panel and improve accuracy of assembly.

    Backlight module and liquid crystal display

    公开(公告)号:US10048432B2

    公开(公告)日:2018-08-14

    申请号:US15152531

    申请日:2016-05-11

    Abstract: A backlight module includes a light guide plate that includes a light incident surface including a first light incident section and a second light incident section, a light emission surface, and a first reflection surface defining a first acute angle with respect to the first reflection surface; a light bar, which includes first and second light sources respectively corresponding to the first and second light incident section such that light from the first and second light sources is allowed to enter the light guide plate to be selectively reflected by the first reflection surface and emit outward from the light emission surface; and a control circuit, which is electrically connected to the first light source and the second light source for controlling the first light source and the second light source. Also provided is a liquid crystal display that includes the backlight module and may achieve sectionized displaying.

    BACKLIGHT MODULE WITH NON-PLANAR LATERAL STRUCTURE AND LIQUID CRYSTAL DISPLAY APPARATUS USING THE SAME

    公开(公告)号:US20170108635A1

    公开(公告)日:2017-04-20

    申请号:US14994187

    申请日:2016-01-13

    CPC classification number: G02B6/0031 G02B6/0045 G02B6/0055 G02B6/0088

    Abstract: A backlight module with a non-planar lateral structure and LCD apparatus using the same are described. The backlight module comprises a light source; and a light guide body comprising a lateral incident surface and a non-planar lateral structure adjacent to the emitting surface and the bottom surface therebetween; wherein the non-planar lateral structure is opposite lateral incident surface, and a first incident light and a second incident light pass through the lateral incident surface and enter the light guide body; and wherein the non-planar lateral structure reflects and refracts the first incident light so that the reflected and refracted light of the first incident light returns from the non-planar lateral structure back to the light guide body, and the returned first incident light and the second incident light are reflected again from the bottom surface and emitted from the emitting surface to an LCD panel.

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