| 摘要 |
An optical touch display device is provided. The optical touch display device includes a front frame, a light guide strip, a photosensitive element, and a light source. The front frame includes a body portion having a display opening, at least one positioning board located on a corner of the body portion, and a protecting cover located on the body portion. An end of the protecting cover is adjacent to the positioning board. An opening groove is defined between the protecting cover and the body portion. The body portion, the positioning board, and the protecting cover are integrally formed. The light guide strip is placed in the opening groove. The photosensitive element is fixed on the positioning board. The light source is located between the photosensitive element and the light guide strip, and a light-emitting side of the light source faces a light inlet side of the light guide strip.
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