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1.发明授权公开(公告)号：US09182533B2
公开(公告)日：2015-11-10
申请号：US14066678
申请日：2013-10-29
Inventor： Liang-Yu Yao , Hsin-Cheng Ho , Yen-Chang Chen
CPC classification number: G02B6/0065 , G02B6/0036 , G02B6/0055 , G06F3/0202 , G06F3/023 , H01H13/83 , H01H2219/044 , H01H2219/06 , H01H2219/062 , H01H2229/002 , H01H2229/012
Abstract: A light guide plate structure includes a light guide plate, a first medium layer, a micro structure, a second medium layer, and a reflection layer. The light guide plate has a light exit surface and a bottom surface opposite to the light exit surface. The first medium layer is formed on the light exit surface. The micro structure is formed on the bottom surface for redirecting light inside the light guide plate to emit from the light exit surface. The second medium layer is formed on the micro structure. The refractive index of the first medium layer and the refractive index of the second medium layer are less than the refractive index of the light guide plate but greater than the refractive index of air. The reflection layer is formed on the second medium layer for reflecting light inside the light guide plate to emit from the light exit surface.
Abstract translation: 导光板结构包括导光板，第一介质层，微结构，第二介质层和反射层。 导光板具有光出射面和与光射出面相反的底面。 第一介质层形成在光出射面上。 微结构形成在底表面上，用于重新引导导光板内的光从光出射表面发射。 第二介质层形成在微结构上。 第一介质层的折射率和第二介质层的折射率小于导光板的折射率，但大于空气的折射率。 反射层形成在第二介质层上，用于反射导光板内的光从光出射面发射。
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公开(公告)号：US20240036245A1
公开(公告)日：2024-02-01
申请号：US18223031
申请日：2023-07-18
Applicant: DARFON ELECTRONICS CORP.
Inventor： Po-Wei Tsai , Yen-Chang Chen , Sheng-Yun Yang
IPC: F21V8/00
CPC classification number: G02B6/0073 , G02B6/0055
Abstract: A backlight module is applied to providing light to a plurality of keyswitches of a keyboard. Each keyswitch has a keycap and an elastic member abutting against the keycap. The backlight module includes a membrane circuit board and a light guide plate. The membrane circuit board has a light emitting diode corresponding to the keyswitch. The light emitting diode is located at a side of the elastic member and emits light to the keycap. The light guide plate is disposed on the membrane circuit board. The light guide plate has a slot hole for containing the light emitting diode and has a hole corresponding to the elastic member. An optical microstructure is formed on the light guide plate for guiding light of the light emitting diode to be incident to the keycap. The elastic member passes through the hole to be disposed on the membrane circuit board.
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公开(公告)号：US09230754B2
公开(公告)日：2016-01-05
申请号：US14328714
申请日：2014-07-11
Inventor： Shih-Sheng Liang , Hsin-Cheng Ho , Yen-Chang Chen
CPC classification number: H01H13/83 , H01H2219/044 , H01H2219/06 , H01H2219/062 , H01H2219/064
Abstract: The illuminated keyboard includes a base plate, a backlight module, a plurality of input keys and a mask layer. The backlight module and the plurality of input keys are disposed on opposite sides of the base plate. The mask layer is disposed between the base plate and the backlight module. A pointing stick cursor key includes a holding structure, an opening and a masking portion. The holding structure with a hole is disposed on the base plate. The opening is formed on the mask layer in a position corresponding to the holding structure. The holding structure is extended into the backlight module via the opening. The at least one masking portion is connected to a periphery of the opening for bendably attaching against the holding structure for covering the hole when the holding structure is extended into the backlight module via the opening.
Abstract translation: 照明键盘包括基板，背光模块，多个输入键和掩模层。 背光模块和多个输入键设置在基板的相对侧上。 掩模层设置在基板和背光模块之间。 指点杆光标键包括保持结构，开口和掩蔽部分。 具有孔的保持结构设置在基板上。 开口形成在掩模层上与保持结构相对应的位置。 保持结构经由开口延伸到背光模块中。 所述至少一个掩蔽部分连接到所述开口的周边，用于当所述保持结构经由所述开口延伸到所述背光模块中时可弯曲地抵靠所述保持结构抵靠所述孔。
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公开(公告)号：US20150014136A1
公开(公告)日：2015-01-15
申请号：US14328714
申请日：2014-07-11
Inventor： Shih-Sheng Liang , Hsin-Cheng Ho , Yen-Chang Chen
CPC classification number: H01H13/83 , H01H2219/044 , H01H2219/06 , H01H2219/062 , H01H2219/064
Abstract: The illuminated keyboard includes a base plate, a backlight module, a plurality of input keys and a mask layer. The backlight module and the plurality of input keys are disposed on opposite sides of the base plate. The mask layer is disposed between the base plate and the backlight module. A pointing stick cursor key includes a holding structure, an opening and a masking portion. The holding structure with a hole is disposed on the base plate. The opening is formed on the mask layer in a position corresponding to the holding structure. The holding structure is extended into the backlight module via the opening. The at least one masking portion is connected to a periphery of the opening for bendably attaching against the holding structure for covering the hole when the holding structure is extended into the backlight module via the opening.
Abstract translation: 照明键盘包括基板，背光模块，多个输入键和掩模层。 背光模块和多个输入键设置在基板的相对侧上。 掩模层设置在基板和背光模块之间。 指点杆光标键包括保持结构，开口和掩蔽部分。 具有孔的保持结构设置在基板上。 开口形成在掩模层上与保持结构相对应的位置。 保持结构经由开口延伸到背光模块中。 所述至少一个掩蔽部分连接到所述开口的周边，用于当所述保持结构经由所述开口延伸到所述背光模块中时可弯曲地抵靠所述保持结构抵靠所述孔。
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公开(公告)号：US08950881B2
公开(公告)日：2015-02-10
申请号：US14029811
申请日：2013-09-18
Inventor： Yen-Chang Chen , Liang-Yu Yao , Hsin-Cheng Ho
CPC classification number: H01H13/83 , H01H3/125 , H01H2219/06 , H01H2219/062 , H01H2219/064
Abstract: A backlight module includes a light guide plate, a light source, a light shielding sheet, a light reflecting sheet and a light shielding member. The light guide plate has a hole formed thereon and the hole has a side wall. The light source is disposed neighboring to the light guide plate and used for emitting light into the light guide plate. The light shielding sheet is disposed on the light guide plate. The light reflecting sheet is disposed below the light guide plate. The light shielding member is disposed in the hole and covers the side wall of the hole, so as to block the light guided by the light guide plate from being emitted out of the hole.
Abstract translation: 背光模块包括导光板，光源，遮光片，光反射片和遮光构件。 导光板具有形成在其上的孔，该孔具有侧壁。 光源设置成与导光板相邻，用于将光发射到导光板中。 遮光片设置在导光板上。 光反射片设置在导光板的下方。 遮光部件设置在孔内并覆盖孔的侧壁，以阻挡由导光板引导的光从孔中射出。
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Patent Agency Ranking
6.发明申请公开(公告)号：US20140133182A1
公开(公告)日：2014-05-15
申请号：US14066678
申请日：2013-10-29
Inventor： Liang-Yu Yao , Hsin-Cheng Ho , Yen-Chang Chen
IPC: F21V8/00
CPC classification number: G02B6/0065 , G02B6/0036 , G02B6/0055 , G06F3/0202 , G06F3/023 , H01H13/83 , H01H2219/044 , H01H2219/06 , H01H2219/062 , H01H2229/002 , H01H2229/012
Abstract: A light guide plate structure includes a light guide plate, a first medium layer, a micro structure, a second medium layer, and a reflection layer. The light guide plate has a light exit surface and a bottom surface opposite to the light exit surface. The first medium layer is formed on the light exit surface. The micro structure is formed on the bottom surface for redirecting light inside the light guide plate to emit from the light exit surface. The second medium layer is formed on the micro structure. The refractive index of the first medium layer and the refractive index of the second medium layer are less than the refractive index of the light guide plate but greater than the refractive index of air. The reflection layer is formed on the second medium layer for reflecting light inside the light guide plate to emit from the light exit surface.
Abstract translation: 导光板结构包括导光板，第一介质层，微结构，第二介质层和反射层。 导光板具有光出射面和与光射出面相反的底面。 第一介质层形成在光出射面上。 微结构形成在底表面上，用于重新引导导光板内的光从光出射表面发射。 第二介质层形成在微结构上。 第一介质层的折射率和第二介质层的折射率小于导光板的折射率，但大于空气的折射率。 反射层形成在第二介质层上，用于反射导光板内的光从光出射面发射。
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公开(公告)号：US09983346B2
公开(公告)日：2018-05-29
申请号：US15217691
申请日：2016-07-22
Inventor： Yen-Chang Chen
CPC classification number: G02B6/0058 , G02B6/0021 , G02B6/0035 , G02B6/0055 , G06F3/0202
Abstract: A backlight module includes a light source unit for providing light, a light guide plate including a plate body having a light entrance surface and extending along an X-Y plane and at least one opening in the plate body and extending along a Z axis, and an optical layer on one side of the light guide plate. The light enters the light guide plate from the light entrance surface and travels substantially along the X-Y plane. A cross section of the opening on the X-Y plane is a taper shape with a base region and a cone shape region extending from one side of the base region near the light source unit. The optical layer has a through hole aligned and communicating with the base region. A projection of the cone shape region along the Z axis on the optical layer is at least partially outside the through hole.
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公开(公告)号：US12154729B2
公开(公告)日：2024-11-26
申请号：US18398285
申请日：2023-12-28
Applicant: Darfon Electronics Corp.
Inventor： Yen-Chang Chen , Po-Yueh Chou
Abstract: A backlight module for a lighting keyboard including at least two heat-dissipating keys comprises a reflective layer, a light guide panel and a shielding sheet and has at least two penetration channels. The reflective layer, the light guide panel and the shielding sheet are stacked up and down. The penetration channels symmetrically correspond to the heat-dissipating keys respectively and penetrate the reflective layer, the light guide panel and the shielding sheet. The penetration channels are respectively provided with one light-reducing pattern at their periphery for blocking light. At least two diffusion patterns are arranged adjacent to the light-reducing patterns for guiding light to illuminate the heat-dissipating keys. The light-reducing patterns and the diffusion patterns form at least two heat-reducing optical pattern groups respectively. The heat-reducing optical pattern groups respectively corresponding to the heat-dissipating keys have identical patterns.
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公开(公告)号：US12087522B2
公开(公告)日：2024-09-10
申请号：US18223031
申请日：2023-07-18
Applicant: DARFON ELECTRONICS CORP.
Inventor： Po-Wei Tsai , Yen-Chang Chen , Sheng-Yun Yang
CPC classification number: H01H3/125 , G02B6/0055 , G02B6/006 , G02B6/0061 , G02B6/0073 , G06F3/0202
Abstract: A backlight module is applied to providing light to a plurality of keyswitches of a keyboard. Each keyswitch has a keycap and an elastic member abutting against the keycap. The backlight module includes a membrane circuit board and a light guide plate. The membrane circuit board has a light emitting diode corresponding to the keyswitch. The light emitting diode is located at a side of the elastic member and emits light to the keycap. The light guide plate is disposed on the membrane circuit board. The light guide plate has a slot hole for containing the light emitting diode and has a hole corresponding to the elastic member. An optical microstructure is formed on the light guide plate for guiding light of the light emitting diode to be incident to the keycap. The elastic member passes through the hole to be disposed on the membrane circuit board.
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公开(公告)号：US20140118989A1
公开(公告)日：2014-05-01
申请号：US14029811
申请日：2013-09-18
Inventor： Yen-Chang Chen , Liang-Yu Yao , Hsin-Cheng Ho
CPC classification number: H01H13/83 , H01H3/125 , H01H2219/06 , H01H2219/062 , H01H2219/064
Abstract: A backlight module includes a light guide plate, a light source, a light shielding sheet, a light reflecting sheet and a light shielding member. The light guide plate has a hole formed thereon and the hole has a side wall. The light source is disposed neighboring to the light guide plate and used for emitting light into the light guide plate. The light shielding sheet is disposed on the light guide plate. The light reflecting sheet is disposed below the light guide plate. The light shielding member is disposed in the hole and covers the side wall of the hole, so as to block the light guided by the light guide plate from being emitted out of the hole.
Abstract translation: 背光模块包括导光板，光源，遮光片，光反射片和遮光构件。 导光板具有形成在其上的孔，该孔具有侧壁。 光源设置成与导光板相邻，用于将光发射到导光板中。 遮光片设置在导光板上。 光反射片设置在导光板的下方。 遮光部件设置在孔内并覆盖孔的侧壁，以阻挡由导光板引导的光从孔中射出。
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