Abstract: A display device and an assembly method of the display device are provided. The display device includes a backlight module, a display panel, a cover lens, and an alignment mark. The backlight module has a supporting frame, and at least one alignment hole is formed on the supporting frame. The display panel is disposed on the backlight module and has a first substrate. The cover lens covers an outer side of the display panel opposite to the backlight module and protrudes outside a side edge of the first substrate. The alignment mark is formed on the first substrate or on the cover lens. The alignment mark at least partially overlaps the alignment hole within a vertical projecting region of the supporting frame. The relative positions along each part of the display device are ensured by using the alignment mark and the alignment hole.

Abstract: A touch display panel includes a substrate, touch sensing elements, a light-shielding layer, a first patterned light-shielding layer, and a display module. The substrate has a display zone and a non-display zone. The non-display zone includes at least one first patterned transparent region. The touch sensing elements is disposed in the display zone. The light-shielding layer covers the first patterned transparent region and has a first transmittance rate. The first patterned light-shielding layer partially covers the light-shielding layer and is not disposed in the first patterned transparent region. The first patterned light-shielding layer has a second transmittance rate. The second transmittance rate is substantially less than the first transmittance rate.

Abstract: A backlight module structure including a light guide plate and a plurality of light emitting diodes is provided. A plurality of first micro-structures and a plurality of second micro-structures are formed on the light incident surface of the light guide plate, and the first micro-structure and the second micro-structure are respectively disposed on two sides of the light incident surface and distributed along the light incident surface. The first micro-structure has a first receiving surface and the second micro-structure has a second receiving surface. The first and second receiving surfaces are faced oppositely and incline at least one inclined angle, such that the normal lines thereof are deflected to the imaginational center of the light guide plate, respectively.