To provide a vehicular circuit board and a vehicular head-up display that can achieve improved reliability of operation of a light source.SOLUTION: Each circuit board 22a,22b,22c includes a base metal 29a, an insulating layer 29b formed on the base metal 29a, a conductive layer 29c formed on the top of the insulating layer 29b, a light source 62a,62b,62c, and a solder 29e for fixing the light source 62a,62b,62c to the conductive layer 29c. The insulating layer 29b has a storage elastic modulus of 10 GPa or less at 25°C. The conductive layer 29c has a thickness T of 40 μm or less.SELECTED DRAWING: Figure 4

    【課題】光源の動作の信頼性を高めることができる車両用回路基板及び車両用ヘッドアップディスプレイ装置を提供する。【解決手段】各回路基板22a,22b,22cは、ベース金属29aと、ベース金属29aに形成される絶縁層29bと、絶縁層29bの上面に形成される導電層29cと、光源62a,62b,62cと、光源62a,62b,62cを導電層29cに固定する半田29eと、を備える。絶縁層29bの25℃における貯蔵弾性率は、10GPa以下である。導電層29cの厚さTは、40μm以下である。【選択図】図4


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    Title :

    VEHICULAR CIRCUIT BOARD AND VEHICULAR HEAD-UP DISPLAY


    Additional title:

    車両用回路基板及び車両用ヘッドアップディスプレイ装置


    Contributors:

    Publication date :

    2022-06-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / H01L Halbleiterbauelemente , SEMICONDUCTOR DEVICES / H05K PRINTED CIRCUITS , Gedruckte Schaltungen



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