Clamp for polarized light film checking

Abstract

The invention discloses a flatness chuck device of polarized light film, which comprises the following parts: chassis, which can move along preset direction; aphototropism, which is set on the chassisto mask light; polarized light film fixing device, which is set on the chassis; support rack, which supports the chassis; mobile board, which can move along upper and lower direction of LM guider inthe support rack; transmitting device, which can move the mobile board toward preset direction.

Description

technical field [0001] The present invention relates to a jig for inspecting a polarizing film, in particular to a jig for inspecting a polarizing film that can stably maintain the flatness of the polarizing film. Background technique [0002] Image 6 Shown is a cross-sectional view of an example of the structure of a conventional liquid crystal display panel. Such as Image 6 As shown, a polarizing film 1 is bonded to both surfaces of a liquid crystal cell 12 to form a conventional liquid crystal display panel 10 . [0003] The above-mentioned liquid crystal display panel 10 is widely used in compact video cameras, mobile phones, car navigation systems, personal computers, etc. due to its advantages of miniaturization and thinning, and low power consumption. [0004] The structure of the polarizing film used to manufacture such a liquid crystal display panel varies depending on the application. For example, a polarizer film may have a laminated structure in which an adhes...

AI Technical Summary

Problems solved by technology

[0007] However, the inspection method of irradiating light on one side of the polarizing film and observing the light transmitted through the film from the opposite side has a problem that many bubbles may not be detected

[0008] Moreover, if the light source part is set on one side of the polarizing film and the detection part is set on the opposite side, since the film is in a non-flat state between the light source part and the detection part, it will cause undulations in the width direction and damage caused by conveyance. There is a problem that the image accuracy of the inspection part is reduced due to unevenness caused by vibration in the process, etc.

[0009] In particular, as the image quality of liquid crystal displays has been improved recently to form bright and clear images, even defects that were not a problem in the past will become defects in today's displays.

In addition, although the above method is easy to distinguish foreign matter and the bubbles around it, so-called non-nucleated bubbles, it is difficult to detect the so-called nucleated bubbles that are not accompanied by foreign matter.

[0010] Moreover, when inspecting a polarizing film recently, due to the requirement that the accuracy is high enough to detect small defects, there is a problem that the above-mentioned inspection method cannot meet this requirement.

Images