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公开(公告)号：US12130462B2
公开(公告)日：2024-10-29
申请号：US18340908
申请日：2023-06-26
发明人： I-Wen Fang , Chia-Ying Chen , Yen-Chang Lee , Chun-Hsien Li
IPC分类号： F21V8/00
CPC分类号： G02B6/0035
摘要： A light guide plate, a backlight module and a display device are provided. The light guide plate includes a main body and an optical layer. The main body has a light-incident surface, a side surface and an optical surface. The light-incident surface and the side surface are respectively connected to the optical surface. The optical layer is correspondingly disposed on the side surface of the main body. In a reflectance characteristic of the optical layer, a total reflectance of the reflectance characteristic is composed of the diffuse reflectance and the parallel reflectance. The percentage value of the parallel reflectance to the total reflectance is less than 45 and larger than 25, including the end point.
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公开(公告)号：US20240337874A1
公开(公告)日：2024-10-10
申请号：US18610165
申请日：2024-03-19
发明人： Po-Mao CHENG , Chang-Ching YEN , Cheng-Te CHANG , Pei-Fen HOU
IPC分类号： G02F1/1333 , G02F1/13357
CPC分类号： G02F1/133314 , G02F1/133602
摘要： A frame structure includes a back frame and a fixing frame combined on the back frame. The fixing frame includes multiple buffering zones, and each of the buffering zones has an upper extension and a lower extension. The upper extension and the lower extension are spaced apart from each other along a first axis without contacting each other and extending toward each other along a second axis. The first axis is not parallel to the second axis. The deformation of the fixing frame can be absorbed when it expands by utilizing the design that the upper extension and lower extension of each buffering zone without contacting with each other. It can avoid the possibility of the fixing frame warping or falling off from the back frame due to thermal expansion, thereby prolonging the service life of the frame structure. The present invention also provides a backlight module and a display device including the frame structure.
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公开(公告)号：US12098841B2
公开(公告)日：2024-09-24
申请号：US18155716
申请日：2023-01-17
发明人： Yu-Hao Kuo , Yi-Shan Lin , Ching-Chieh Yeh
CPC分类号： F21V9/40 , G02B5/1809 , G02B5/1871
摘要： An optical component includes a phase diffraction grating and an amplitude diffraction grating. The phase diffraction grating includes a center concave section and a plurality of ring stages. The ring stages surround the center concave section. The center concave section and the ring stages form a cavity, where a light source is disposed in the cavity and emits the light to the optical component. Each of the ring stages has a stage surface. Each of the stage surfaces includes a plurality of ring microstructures arranged in concentric circles. The widths of each ring microstructure in at least one of the ring stages are less than the quarter wavelength of the light. The amplitude diffraction grating includes a center convex section and a plurality of ring parts. The center convex section and the center concave section are aligned. The ring parts surround the central convex section.
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公开(公告)号：US12085260B2
公开(公告)日：2024-09-10
申请号：US17447199
申请日：2021-09-09
发明人： Yen-Chuan Chu , Chia-Yin Chang , Chin-Ting Weng , Yi-Ching Chung , Hao Chen
IPC分类号： F21V13/04 , F21V3/04 , F21Y105/16 , F21Y115/10 , G02F1/1335 , G02F1/13357
CPC分类号： F21V13/04 , F21V3/049 , F21Y2105/16 , F21Y2115/10 , G02F1/133603 , G02F1/133607
摘要： A backlight module and a display device are provided. The backlight module includes a light source structure and at least one optical film. The optical film is disposed above the light source structure. The optical film includes a main body and plural optical structures. The optical structures are disposed on the main body. Each of the optical structures is a tapered structure. Each of the optical structures has plural side surfaces, and a portion of light emitted from the light source structure is guided toward plural primary directions when passing through the side surfaces of the optical structures, and therefore the light emitted from the light source is no longer concentrated on the top of each of the optical structures.
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公开(公告)号：US20240290288A1
公开(公告)日：2024-08-29
申请号：US18651701
申请日：2024-05-01
发明人： Peng-Hsiang WU , Hung-Pao WU , Chun-Yi SUN , Jon-Hong LIN , Lian-Young LEE , Bo-Ru HUANG
IPC分类号： G09G3/34
CPC分类号： G09G3/3406 , G09G2320/0233 , G09G2320/0626 , G09G2320/0693 , G09G2360/16
摘要： A display device includes a display panel, a backlight module and a circuit. The display panel includes multiple regions. The back light module includes multiple light emitting units, and each region corresponds to at least one of the light emitting units. The circuit includes a calibration lookup table corresponding to a first light emitting unit. The calibration lookup table records a parameter and multiple duty cycles. The circuit accesses the calibration lookup table and determines an output duty cycle according to the duty cycles. The circuit determines a current value of the first light emitting unit to drive the first light emitting unit according to the output duty cycle and the parameter.
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6.发明授权公开(公告)号：US12072080B2
公开(公告)日：2024-08-27
申请号：US17930070
申请日：2022-09-07
IPC分类号： F21V21/005 , F21V17/00 , F21V17/10 , F21V21/02
CPC分类号： F21V21/005 , F21V17/002 , F21V17/10 , F21V21/02 , F21V2200/20
摘要： A lamp, a lamp system, a method for assembling lamp system, and a method for disassembling lamp system are described. The lamp includes a frame, a light guide plate, at least one light source and a connecting mechanism. The frame includes two side covers opposite to each other, and an accommodating space is formed between the side covers. The light guide plate is disposed in the accommodating space. The light source is disposed in at least one of the side covers and is disposed adjacent to a light incident surface of the light guide plate. The connecting mechanism is disposed in the frame. The connecting mechanism includes an engaging member and an adjusting member. The engaging member is slidably disposed in an inner space of one of the side covers.
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公开(公告)号：US12044879B2
公开(公告)日：2024-07-23
申请号：US17817658
申请日：2022-08-05
发明人： Hao Chen , Chin-Ting Weng , Chia-Yin Chang , Feng-Nien Tsai
IPC分类号： F21V8/00
CPC分类号： G02B6/0055 , G02B6/0053
摘要： A light guide plate, a backlight module and a display device are provided. The light guide plate is configured to be coupled to a light source. The light guide plate includes a light-emitting surface, a bottom surface, a light-incident surface, plural stripe-shaped microstructures and plural light guiding microstructures. The bottom surface is opposite to the light-emitting surface. The light-incident surface is connected between the light-emitting surface and the bottom surface. The stripe-shaped microstructures are disposed on the at least one of the light-emitting surface and the bottom surface, and each of the stripe-shaped microstructures has two opposing side surfaces and an active surface. The side surfaces are respectively connected to two opposite sides of the active surface. The light-guiding microstructures are disposed between any adjacent two of the stripe-shaped microstructures and arranged along an extending direction of each of the stripe-shaped microstructures.
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公开(公告)号：US12017817B2
公开(公告)日：2024-06-25
申请号：US17659180
申请日：2022-04-14
发明人： Hung-Yi Hsu , Hung-Lin Chou , Chao-Hsu Chen , Pei-Ling Kao , Chih-Ming Chan
CPC分类号： B65D19/44 , B65D1/34 , B65D21/0209 , B65D21/0233 , B65D85/30 , B65D2519/0081
摘要： A carrier tray and a carrier tray assembly using the same are described. The carrier tray includes a carrying portion, a surrounding wall and at least one recessed structure. The carrying portion has a top surface and a bottom surface opposite to the top surface. The surrounding wall is disposed around the carrying portion. The recessed structure is recessed into the carrying portion. The recessed structure has an opening and a recessed space, and the recessed space is communicated with the outside through the opening. There is a first distance defined by the recessed space along a first direction, and there is a second distance defined by the opening along the first direction. The first distance is greater than the second distance.
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公开(公告)号：US11960111B2
公开(公告)日：2024-04-16
申请号：US18056241
申请日：2022-11-16
发明人： Wei-Hsuan Chen , Chung-Yung Tai , Chun-Yi Wu
IPC分类号： F21V8/00
CPC分类号： G02B6/0053 , G02B6/0088 , G02B6/009
摘要： An optical film, an optical film set, a backlight module and a display device are provided. The optical film includes a main body, plural first prism structures and plural second prism structures. The main body has a first optical surface and a second optical surface. The first prism structures are disposed on the first optical surface. Each of the first prism structures extends along a first direction. The second prism structures are disposed on the second optical surface. Each of the second prism structures extends along a second direction. The first direction is different from the second direction.
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公开(公告)号：US11947153B2
公开(公告)日：2024-04-02
申请号：US18143066
申请日：2023-05-04
发明人： Hung-Pin Cheng , Shih-Fan Liu , Chien-Yu Ko , Jui-Lin Chen
IPC分类号： F21V8/00
CPC分类号： G02B6/0068 , G02B6/0086
摘要： A backlight module and a display device are provided, and the backlight module includes a light guide plate, a plurality of light-emitting components, and a frame. The light guide plate includes a first side, a second side, and two third sides. The light-emitting components are disposed on the first side, and light generated from the light-emitting components enters the light guide plate from the first side. The frame covers the second side and the third sides and includes an opening and at least one buffer portion. The light-emitting components are disposed in the opening, and the buffer portion is disposed on a side of the opening and contacts the light guide plate.
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