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公开(公告)号:US20190369322A1
公开(公告)日:2019-12-05
申请号:US16544578
申请日:2019-08-19
发明人: William Dunn , Harry Presley , Chris Tran
IPC分类号: F21V8/00 , G02F1/1335
摘要: A backlight assembly includes a substantially planar light guide defining an upper, lower, and first side surface. A first plurality of LEDs is positioned to emit light into the lower surface. A NVIS filter is placed adjacent to, and a second plurality of LEDs is positioned near to, the first side surface. A directing element extends between the second plurality of LEDs and the NVIS filter and directs the emitted light from the second plurality of LEDs through the NVIS filter and into the light guide. The NVIS filter extends substantially perpendicular from a support structure associated with the light guide.
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公开(公告)号:US10360861B2
公开(公告)日:2019-07-23
申请号:US15974738
申请日:2018-05-09
发明人: William Dunn , Ken Mahdi
摘要: An electronic display assembly includes a first and second power source. A first power supply monitor is in electrical connection with the first power source and the electronic display and a second power supply monitor is in electrical connection with the second power source and the electronic display. An electronic display controller accepts control signals and is in electrical communication with the first and second power supply monitors. A multiplexer is in electrical connection with the first and second power supply monitors, the electronic display controller, and the electronic display.
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公开(公告)号:US20180261173A1
公开(公告)日:2018-09-13
申请号:US15974738
申请日:2018-05-09
发明人: William Dunn , Ken Mahdi
CPC分类号: G09G3/3611 , G09G3/3406 , G09G3/3607 , G09G3/3648 , G09G2310/0237 , G09G2320/041 , G09G2320/08 , G09G2330/08 , G09G2360/14
摘要: An electronic display assembly includes a first and second power source. A first power supply monitor is in electrical connection with the first power source and the electronic display and a second power supply monitor is in electrical connection with the second power source and the electronic display. An electronic display controller accepts control signals and is in electrical communication with the first and second power supply monitors. A multiplexer is in electrical connection with the first and second power supply monitors, the electronic display controller, and the electronic display.
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公开(公告)号:US09268166B2
公开(公告)日:2016-02-23
申请号:US13937756
申请日:2013-07-09
发明人: William Dunn , Harry Presely , Chris Tran
IPC分类号: F21V7/22 , G02F1/1335 , F21V8/00
CPC分类号: G02B6/0068 , G02B6/0016 , G02B6/0018 , G02B6/0021 , G02B6/0026 , G02B6/0073 , G02F1/133509 , G02F1/133603 , G02F1/133606 , G02F1/133615 , G02F2001/133626
摘要: A backlight device for a liquid crystal display containing a substantially planar light guide with a light emission surface and a light-collecting portion opposing the light emission surface. A pair of opposing side portions may define the periphery of the light guide. A first plurality of LEDs are placed so as to direct the emitted light into the light-collecting portion. An NVIS filter is preferably placed adjacent to at least one of the side portions. A second plurality of LEDs are placed to direct the emitted light through the NVIS filter and into a side portion of the light guide. Alternative embodiments can contain NVIS filters and LEDs along additional edge portions of the light guide. Some embodiments may use directing elements or slanted surfaces of the light guide to direct the light from the second plurality of LEDs into the edge portions of the light guide.
摘要翻译: 一种用于液晶显示器的背光装置,其包含具有发光表面的基本上平面的光导和与该光发射表面相对的聚光部。 一对相对的侧部可以限定光导的周边。 放置第一多个LED以将发射的光引导到光收集部分中。 优选地,NVIS过滤器邻近至少一个侧部设置。 放置第二多个LED以将发射的光引导通过NVIS滤光器并进入光导的侧部。 替代实施例可以包含沿着光导的附加边缘部分的NVIS滤光器和LED。 一些实施例可以使用光导引导元件或倾斜表面将来自第二多个LED的光引导到光导的边缘部分。
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公开(公告)号:US20130176318A1
公开(公告)日:2013-07-11
申请号:US13735856
申请日:2013-01-07
发明人: William Dunn , David Williams , Hanwook Baek
IPC分类号: G09G3/36
CPC分类号: G09G3/3426 , G02F1/136259 , G09G3/3413 , G09G3/36 , G09G3/3648 , G09G3/3666 , G09G2300/0452 , G09G2310/0224 , G09G2310/0281 , G09G2320/0626 , G09G2320/0693 , G09G2330/08
摘要: In an exemplary embodiment, each horizontal and vertical conductor of a TFT array may be in electrical contact with a first and second control system. Initially, the entire display is driven by the first control system. When/if a failure occurs in the first control system, it is powered down and the second control system maintains operation of the entire display. Each control system may contain a set of source/gate drivers, display interface board, and power supply. A reversionary button may allow the user to manually switch between control systems. Alternatively, failure may be detected by the display interface boards or a graphics processor.
摘要翻译: 在示例性实施例中,TFT阵列的每个水平和垂直导体可以与第一和第二控制系统电接触。 最初,整个显示由第一控制系统驱动。 当/如果在第一控制系统中发生故障时,它被断电并且第二控制系统维持整个显示器的操作。 每个控制系统可能包含一组源/门驱动器,显示接口板和电源。 回归按钮可以允许用户在控制系统之间手动切换。 或者,显示接口板或图形处理器可能检测到故障。
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公开(公告)号:US10386570B2
公开(公告)日:2019-08-20
申请号:US16182700
申请日:2018-11-07
发明人: William Dunn , Harry Presley , Chris Tran
IPC分类号: F21V8/00 , G02F1/1335
摘要: A backlight assembly includes a substantially planar light guide defining an upper surface, a lower surface, and a side surface. A first plurality of LEDs is positioned below the lower surface of the light guide and oriented to direct the light emitted therefrom into the lower surface. A NVIS filter is placed adjacent to the side surface and a second plurality of LEDs is positioned near the side surface. A separating element extends between the first and second plurality of LEDs. A directing element extends between the second plurality of LEDs and the NVIS filter to direct the emitted light from the second plurality of LEDs through the NVIS filter and into the light guide.
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公开(公告)号:US20190086605A1
公开(公告)日:2019-03-21
申请号:US16182700
申请日:2018-11-07
发明人: William Dunn , Harry Presley , Chris Tran
IPC分类号: F21V8/00 , G02F1/1335
CPC分类号: G02B6/0068 , G02B6/0016 , G02B6/0018 , G02B6/0021 , G02B6/0026 , G02B6/0073 , G02F1/133509 , G02F1/133603 , G02F1/133606 , G02F1/133615 , G02F2001/133626
摘要: A backlight assembly includes a substantially planar light guide defining an upper surface, a lower surface, and a side surface. A first plurality of LEDs is positioned below the lower surface of the light guide and oriented to direct the light emitted therefrom into the lower surface. A NVIS filter is placed adjacent to the side surface and a second plurality of LEDs is positioned near the side surface. A separating element extends between the first and second plurality of LEDs. A directing element extends between the second plurality of LEDs and the NVIS filter to direct the emitted light from the second plurality of LEDs through the NVIS filter and into the light guide.
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公开(公告)号:US20130286326A1
公开(公告)日:2013-10-31
申请号:US13927218
申请日:2013-06-26
发明人: William Dunn , Micahel LeCave , Harry Presley
IPC分类号: G02F1/1335
CPC分类号: G02F1/13362 , G02F1/133524 , G02F2001/133562
摘要: Preferred embodiments utilize a plurality of optical channels to effectively aim the light emitted by a liquid crystal display (LCD). Embodiments may also change the nominal and range of viewing angles of light in two or three dimensions in order to confine the emitted light towards the intended observer.
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公开(公告)号:US10203447B2
公开(公告)日:2019-02-12
申请号:US15050014
申请日:2016-02-22
发明人: William Dunn , Harry Presely , Chris Tran
IPC分类号: G02F1/1335 , F21V8/00
摘要: Exemplary embodiments provide an electronic display assembly comprising a liquid crystal layer and a light guide positioned behind the liquid crystal layer. The light guide preferably includes a light emission surface and a light-collecting portion opposing the light emission surface. A pair of opposing side portions may define the periphery of the light guide. A first plurality of LEDs are placed so as to direct the emitted light into the light-collecting portion. An NVIS filter is preferably placed adjacent to at least one of the side portions. A second plurality of LEDs are placed to direct the emitted light through the NVIS filter and into a side portion of the light guide. Alternative embodiments can contain directing elements to direct the light from the second plurality of LEDs into the edge portions of the light guide.
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公开(公告)号:US20170256212A1
公开(公告)日:2017-09-07
申请号:US15599618
申请日:2017-05-19
发明人: William Dunn , Ken Mahdi
CPC分类号: G09G3/3611 , G09G3/3406 , G09G3/3607 , G09G3/3648 , G09G2310/0237 , G09G2320/041 , G09G2320/08 , G09G2330/08 , G09G2360/14
摘要: A system for powering and controlling a backlit electronic display where redundancy is used to provide two independent paths from a pair of power sources to the backlight. Further, two independent paths are also used from a pair of power sources to the electronic display. If any one of the paths were to fail or begin to degrade in performance, the system contains monitoring devices which can direct another path to be used by the system. Two separate control circuits for the electronic may be used so that either one may be used to control the electronic display if one were to fail. Two separate temperature sensors and luminance sensors may also be used to increase the durability of the system.
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