Device and method for dot processing of light guide plate based on arc reflection

Abstract

The invention discloses a light guide plate dot processing device and method based on arc reflection, which includes a frame and a processing platform for fixing the light guide plate. The processing platform is arranged on the frame and is movably connected with the frame. The processing platform A laser, a reflection mechanism for reflecting the laser light emitted by the laser onto the light guide plate and a driving mechanism for driving the rotation of the reflection mechanism are arranged above. The driving mechanism is fixed on the frame, and the reflection mechanism includes a first A reflective mirror group and a second reflective mirror group for reflecting the first reflective mirror group to reflect laser light, the output end of the drive mechanism is connected to the first reflective mirror group, and the second reflective mirror group is fixed on the frame; the traditional The linear addition and subtraction motion is converted into rotational motion, which can ensure the uniform speed of the reflection mechanism's rotation direction, improve the energy consumption defect of acceleration and deceleration motion during traditional linear processing, and improve the processing efficiency and quality of the light guide plate.

Description

technical field [0001] The invention relates to the technical field of light guide plate processing, in particular to a device and method for processing dots of a light guide plate based on arc reflection. Background technique [0002] The liquid crystal display itself does not emit light, so it needs to be illuminated by the backlight module, and the display quality of the liquid crystal display is closely related to the performance of the backlight source. The quality of the backlight determines important parameters such as the brightness of the LCD screen, the uniformity of the picture, and the color scale, and largely determines the luminous effect of the LCD screen. A high-quality liquid crystal display means a high-quality backlight module, and the role of the light guide plate in the backlight module is very important. The size and density of the scattering dots in the light guide plate determine the brightness and uniformity of the output light. Therefore, The stabl...

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Problems solved by technology

[0003] At present, when the traditional laser method is used to process dots, the laser head moves relative to the substrate to process dots at different positions on the substrate. At this time, the optical path of the laser beam from the laser light source to the light guide plate will change. The longer the distance, the stronger the energy attenuation of the laser beam, and the shorter the path of the optical path, the weaker the attenuation of the energy of the laser beam. Therefore, the energy of the laser beam hitting the substrate will be different when the laser head is in different positions, which results in different substrates. The size and depth of the dots processed at the position are inconsistent, resulting in low quality of the light guide plate

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