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公开(公告)号：US20230168540A1
公开(公告)日：2023-06-01
申请号：US17987803
申请日：2022-11-15
IPC分类号： G02F1/13357
CPC分类号： G02F1/133606 , G02F1/133603
摘要： According to an aspect of the disclosure, a lighting device includes: a plurality of light sources; and a plurality of optical sheets disposed to be stacked at a position away from the plurality of light sources. The plurality of optical sheets include a first optical sheet and a second optical sheet. Each of the first optical sheet and the second optical sheet has a unit region that modulates light emitted from a light source for each of the plurality of light sources. The unit region includes a modulation region including a light source region facing the light source, and having a relatively high modulation action of the light as compared with other regions.
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公开(公告)号：US20240176183A1
公开(公告)日：2024-05-30
申请号：US18371788
申请日：2023-09-22
IPC分类号： G02F1/13357
CPC分类号： G02F1/133603 , G02F1/133605
摘要： An illumination device includes a plurality of light sources, each having a light-emission surface that faces a side opposite to a display panel; a light-source substrate that has a mount surface on a side opposite to the display panel, and that has light transmissivity, the mount surface being provided for mounting the plurality of light sources thereon; and a reflecting layer that is provided on a side of the light-source substrate opposite to the display panel so as to be spaced from the light-emission surfaces by a predetermined interval, and that reflects toward the light-source substrate light coming from the light sources, wherein the illumination device illuminates the display panel with light.
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公开(公告)号：US20240142820A1
公开(公告)日：2024-05-02
申请号：US18370026
申请日：2023-09-19
IPC分类号： G02F1/13357 , G02F1/1335
CPC分类号： G02F1/133603 , G02F1/133605 , G02F1/133628
摘要： An illumination device includes a light source, a first optical member, and a fixing portion. The first optical member includes a light reflection portion configured to reflect light, at least a part of the light reflection portion overlapping with the light source, and a light transmitting portion configured to transmit light, the light transmitting portion not overlapping the light reflection portion. A center of the light source in a plan view is defined as a first center, and a center of the light reflection portion in a plan view is defined as a second center. In the light reflection portion, the second center is located between the fixing portion and the first center at a first temperature, and at a second temperature higher than the first temperature, a position of the second center is closer to the first center than a position of the second center at the first temperature.
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公开(公告)号：US20220308399A1
公开(公告)日：2022-09-29
申请号：US17690553
申请日：2022-03-09
IPC分类号： G02F1/1335 , F21V8/00
摘要： An illumination device includes a light source, a wavelength conversion sheet configured to perform wavelength conversion on light from the light source, and a first light reduction portion disposed in a frame shape as a whole overlapping an outer peripheral portion of the wavelength conversion sheet in a plan view between the light source and the wavelength conversion sheet, and configured to reduce a light amount of incident light.
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公开(公告)号：US20240280856A1
公开(公告)日：2024-08-22
申请号：US18418899
申请日：2024-01-22
IPC分类号： G02F1/13357 , H01L25/075 , H01L33/52 , H01L33/60
CPC分类号： G02F1/133605 , G02F1/133603 , H01L25/0753 , H01L33/52 , H01L33/60 , H01L2933/0058
摘要： A lighting device includes a substrate, a first conductive portion, a second conductive portion disposed with a spacing as to the first conductive portion, a first reflective layer having a first opening coinciding with the first conductive portion and a second opening coinciding with the second conductive portion, a light-emitting part connected to the first conductive portion through the first opening, a non-light-emitting part connected to the second conductive portion through the second opening, and a second reflective layer. The second reflective layer includes a first reflective portion disposed around the light-emitting part, and a second reflective portion disposed around the non-light-emitting part.
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