Optical module and positioning frame therein

Abstract

The invention discloses an optical module. The position frame can fix the optical film and can prevent the optical film from departure. The optical module comprises an optical film and a position frame. The optical module comprises at least one first convex ear which has a root part and an expensing part with the width is greater than the width of the root part. The position frame comprises a side wall and an upper end part. The upper end part is positioned on the first port of the side wall. The upper end part has a first convex part. The first port is used to accommodate the root of the first convex ear; the part area of the expensing part of the first convex ear can accommodate the lower part of the first convex ear.

Description

technical field [0001] The invention relates to an optical module, in particular to an optical module with good positioning effect for the optical film therein. Background technique [0002] In the liquid crystal display, it can be divided into two parts, one is the backlight module, which can provide stable and uniform light; the other is the liquid crystal panel (mainly composed of two substrates sandwiching a liquid crystal layer), which is located between the light emitted from the backlight module At the position, by controlling the rotation of the liquid crystal molecules in the liquid crystal panel, the traveling direction of the light in the liquid crystal panel is changed, and the brightness difference is caused in different areas of the liquid crystal panel, so as to achieve the purpose of image display. [0003] As mentioned above, since the light required by the LCD panel is completely dependent on the backlight module, important product characteristics such as d...

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Problems solved by technology

[0014] Although the hook-shaped protrusion can prevent the optical film from falling off from the backlight module, it is not effective in fixing the optical film in the Z direction (that is, the direction perpendicular to the light-emitting surface of the backlight module), and the optical film cannot be completely Flat and close to the backlight module, it is still easy to shift in the Z direction on the frame,

[0015] By setting hook-shaped protrusions on the frame, the thickness of the backlight module will be significantly increased, which is not a good design for thin and compact LCD monitors.

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