Invention Grant
- Patent Title: Display device, head-up display, and mobile object
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Application No.: US18072920Application Date: 2022-12-01
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Publication No.: US12072488B2Publication Date: 2024-08-27
- Inventor: Shunsuke Tomomatsu , Yosuke Asai
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Applicant Address: JP Osaka
- Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP 20097748 2020.06.04
- Main IPC: G02B27/01
- IPC: G02B27/01 ; B60K35/00 ; G02B3/06 ; G02B3/08 ; B60K35/23

Abstract:
A display device includes a display panel, a plurality of light sources arranged in a first direction orthogonal to a normal direction of the display panel, a light guide panel on which light from a plurality of light sources is incident and including an emission surface that emits light toward the display panel, and a first optical member disposed between the display panel and the light guide panel and including a first surface opposing the emission surface of the light guide panel, a second surface provided opposite to the first surface to oppose the display panel, a Fresnel lens provided on the first surface, and an optical array provided on the second surface. As viewed in at least one of the first direction and a second direction orthogonal to both the normal direction and the first direction, the Fresnel lens emits light passing through a center of the display panel.
Public/Granted literature
- US20230097752A1 DISPLAY DEVICE, HEAD-UP DISPLAY, AND MOBILE OBJECT Public/Granted day:2023-03-30
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