The invention discloses a backlight module and a display device, the backlight module is used for providing backlight for a display panel, the backlight module comprises a backlight source and a thermochromic film layer, and the backlight source is used for providing a light source for the backlight module; the thermochromic film layer comprises a plurality of thermochromic parts which are uniformly arranged on the backlight source; when the temperature of the thermochromic film layer is lower than the preset temperature, the thermochromic parts are in a non-transparent state, light rays emitted by the backlight source are emitted out from the space between the adjacent thermochromic parts, and the display panel is in a first display mode; when the temperature of the electrothermal film layer is higher than or equal to the preset temperature, the thermochromic part is in a transparent state, and the display panel is in a second display mode. According to the backlight module, the thermochromic film layer is arranged, on one hand, wide and narrow visual angle display is achieved through the thermochromic part, and on the other hand, the problem of heat accumulation of the backlight module is solved by means of the certain heat absorption capacity of the thermochromic film layer.

    本申请公开了一种背光模组和显示装置,所述背光模组用于为显示面板提供背光,所述背光模组包括背光源和热致变色膜层,所述背光源用于为所述背光模组提供光源;所述热致变色膜层包括多个热致变色部,均匀排列设置在所述背光源上;其中,当所述热致变色膜层低于预设温度时,所述热致变色部为非透明状态,所述背光源发出光线从相邻所述热致变色部之间射出,所述显示面板处于第一显示模式;所述电热膜层高于或等于预设温度时,所述热致变色部为透明状态,所述显示面板处于第二显示模式。通过设置热致变色膜层,一方面通过热致变色部实现宽窄视角的显示,另一方面利用热致变色膜层具有一定的吸热能力,改善背光模组热量堆积的问题。


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    Title :

    Backlight module and display device


    Additional title:

    背光模组和显示装置


    Contributors:
    GUO QIUYUE (author) / XIE JUNFENG (author)

    Publication date :

    2023-12-08


    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... / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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