The present invention provides an illumination device and a display device which suppress light emission outside a limited angle range and improve the brightness of emitted light in a direction inclined with respect to the front direction. The lighting device (12) comprises a first light source (13), a first light guide plate (14), a first sheet (18), a second light source (24) and a second light guide plate (25), the first sheet (18) at least comprises two first light shielding parts (18C) and a first light transmitting part (18D), and a second opposite main surface (25C) of the second light guide plate (25) is provided with a first inclined surface (28A) and a second inclined surface (29A) which are inclined. Both the first inclined surface (28A) and the second inclined surface (29A) rise in the first direction from the side opposite the second LED (24) toward the second LED (24) side, the angle of the first inclined surface (28A) with respect to the first direction is set to a first angle (theta1) greater than 27 DEG, and the angle of the second inclined surface (29A) with respect to the first direction is set to a second angle (theta2) greater than the first angle (theta1) and less than 58 DEG.

    本发明提供抑制光向被限制的角度范围之外出射,提高向相对于正面方向倾斜的方向的出射光的亮度的照明装置以及显示装置。照明装置(12)包括:第一光源(13)、第一导光板(14)、第一片材(18)、第二光源(24)、第二导光板(25),第一片材(18)至少具有:两个第一遮光部(18C)以及第一透光部(18D),第二导光板(25)的第二相反主面(25C)设置有倾斜的第一斜面(28A)以及第二斜面(29A),第一斜面(28A)以及第二斜面(29A)均在第一方向上从与第二LED(24)相反的一侧朝向第二LED(24)侧上升,第一斜面(28A)相对于第一方向的角度设为大于27°的第一角度θ1,第二斜面(29A)相对于第一方向的角度设为大于第一角度θ1且小于58°的第二角度θ2。


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    Title :

    Illumination device and display device


    Additional title:

    照明装置以及显示装置


    Contributors:

    Publication date :

    2025-02-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING,... , Vorrichtungen oder Anordnungen, deren optische Arbeitsweise durch Änderung der optischen Eigenschaften des Mediums der Vorrichtungen oder Anordnungen geändert wird zum Steuern der Intensität, Farbe, Phase, Polarisation oder der Richtung von... / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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