Backlight module and display device

The utility model provides a backlight module which is used for providing an illumination light beam. The backlight module comprises a light source and a light guide element. The light source provides light beams. The light guide element is disposed on a transmission path of the light beam. The ligh...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHOU MINJUN, CHEN JUNWEI, FANG YUFU, LIN GUANTING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	The utility model provides a backlight module which is used for providing an illumination light beam. The backlight module comprises a light source and a light guide element. The light source provides light beams. The light guide element is disposed on a transmission path of the light beam. The light guide element comprises a plate body and a plurality of cylindrical surface units. The plate body has a top surface, a bottom surface, a side surface and a light incident surface. The top surface and the bottom surface are arranged back to back. The side surface and the light incident surface are arranged back to back. The light incident surface is connected between the top surface and the bottom surface. The light source is disposed on the incident surface. The plurality of cylindrical surface units are located on at least one of the top surface and the bottom surface of the plate body, each cylindrical surface unit extends along a first direction, and a first included angle is formed between the first direction