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CN-121977797-A - Device and method for detecting performance of large-size light guide plate

CN121977797ACN 121977797 ACN121977797 ACN 121977797ACN-121977797-A

Abstract

The invention belongs to the technical field of light guide plate detection and discloses a device and a method for detecting the performance of a large-size light guide plate, wherein when the device and the method are used, the light guide plate is inserted from a detection hole, the light guide plate pushes a limiting block to move backwards, and after the light guide plate is pushed to the bottom, a light reflecting plate pushes the light guide plate upwards to form a backlight module; and starting the LED lamp strip to wait for detection. At this time, the sliding block is arranged at the rear of the threaded rod, the first motor is started to enable the movable guide rail to reciprocate along the left-right direction, the movable column moves under the cooperation of the movable guide rail and the guide groove on the shell, the colorimeter below the movable column can collect data at the specified nine points, and after the data collection is completed, the second motor is started to enable the sliding block to move to the front and wait for the next measurement to pull the movable column. At the moment, the wedge surface in front of the reflecting plate is pressed downwards, the limiting block is restored, the light guide plate is ejected out, and the light guide plate is replaced to carry out the next round of measurement. The technical scheme of the invention can improve the performance detection efficiency of the light guide plate.

Inventors

  • LI JIAWEN
  • XU JUNWEI
  • TANG FENG
  • YU FEI

Assignees

  • 中国科学技术大学

Dates

Publication Date
20260505
Application Date
20260202

Claims (6)

  1. 1. A large-size light guide plate performance detection device is characterized by comprising a shell (1), an automatic assembly module, a data acquisition module, a driving module and a reversing module, wherein a detection hole (2) is formed in the side edge of the shell (1), the detection hole (2) is used for receiving the automatic assembly module and a light guide plate to be detected, the automatic assembly module comprises a light reflecting plate (21), a reflecting film (22), a limiting block (25) and a backlight assembly (23), the reflecting film (22) and the light reflecting plate (21) are sequentially arranged in the shell (1) from top to bottom, a detection groove is formed between the backlight assembly (23) and the reflecting film (22), the detection groove is used for installing the limiting block (25) and the light guide plate to be detected, one side of the detection groove is provided with an LED lamp strip (26), the top of the shell (1) is provided with a guide groove, the guide groove is slidingly connected with the data acquisition module, the data acquisition module comprises a moving column (35) and a colorimeter, the moving column (35) is matched with the guide groove, the driving module is arranged below the moving column (35) and is used for carrying out detection on the driving module according to the preset performance of the moving column (35), the movable column (35) drives the colorimeter to move, so that the collection of the performance parameters of the light guide plate to be detected is realized.
  2. 2. The large-size light guide plate performance detection device according to claim 1, wherein the reflector (21) and the limiting block (25) are connected with the inner wall of the shell (1) through springs.
  3. 3. A large-sized light guide plate performance detecting device according to claim 2, wherein the side of the reflecting plate (21) close to the detecting hole (2) is provided as a wedge surface.
  4. 4. The large-size light guide plate performance detection device according to claim 1, wherein the driving module comprises a first motor, a driving connecting rod (32), a driven connecting rod (33), a moving guide rail (34) and a first guide rail (31), wherein the first motor and the first guide rail (31) are both arranged on the shell (1), one end of the driving connecting rod (32) is connected with the first motor, the other end of the driving connecting rod is connected with the driven connecting rod (33), one end of the driven connecting rod (33) far away from the driving connecting rod (32) is fixedly provided with the moving guide rail (34), the moving guide rail (34) is slidably arranged on the first guide rail (31), a through hole groove is formed in the moving guide rail (34), and the moving column (35) is slidably arranged in the through hole groove.
  5. 5. The large-size light guide plate performance detection device according to claim 4, wherein the reversing module comprises a support frame (44), a second motor (41), a threaded rod and a sliding block (43), the support frame (44) is arranged above the first guide rail (31), the second motor (41) is installed on one side of the support frame (44), the threaded rod is installed below the support frame (44) and is in transmission connection with the second motor (41), the sliding block (43) is slidably arranged on the threaded rod, and the sliding block (43) is connected with the moving column (35) through a spring.
  6. 6. A large-size light guide plate performance detection method applied to the large-size light guide plate performance detection device as claimed in any one of claims 1 to 5, comprising: S1, inserting a light guide plate to be detected into a detection groove in an automatic assembly module from a detection hole (2), pushing a limiting block (25) to move backwards by the light guide plate to be detected, and pushing the light guide plate to be detected to a backlight assembly (23) through a reflecting plate (21) when the limiting block (25) moves to a preset position to form a backlight module; S2, starting an LED lamp strip (26) and a first motor, moving a sliding block (43) to one end of a threaded rod far away from the second motor (41), dragging a moving column (35) through the sliding block (43), controlling a moving guide rail (34) to reciprocate along the left-right direction, enabling the moving column (35) to move under the cooperation of the moving guide rail (34) and a guide groove, and enabling the moving column (35) to drive a colorimeter to acquire performance parameters of a light guide plate to be detected at a preset position; S3, after the collection of the performance parameters of the light guide plate to be detected is completed, starting a second motor (41) to reset the sliding block (43), applying downward thrust to the inclined wedge surface of the reflecting plate (21) to reset the limiting block (25), and popping up the light guide plate to be detected to complete the detection of the current light guide plate to be detected; and repeating the steps S1 to S3 until all detection tasks of the light guide plate to be detected are completed.

Description

Device and method for detecting performance of large-size light guide plate Technical Field The invention belongs to the technical field of light guide plate detection, and particularly relates to a device and a method for detecting performance of a large-size light guide plate. Background Currently, a nine-point measurement method is generally adopted for detecting the performance of the light guide plate, a worker is required to hold an illuminance meter or a colorimeter to select nine points which are uniformly distributed on the surface of the light guide plate, performance parameters of the light guide plate are collected, errors can be generated in manual measurement, the light guide plate is required to be assembled into a backlight module before each measurement, and the efficiency is low due to frequent disassembly and assembly. In order to solve the problems in the prior art, the invention provides a large-size light guide plate performance detection method and a device thereof. Disclosure of Invention The invention aims to provide a device and a method for detecting the performance of a large-size light guide plate, so as to solve the problems in the prior art. The invention provides a large-size light guide plate performance detection device which comprises a shell, an automatic assembly module, a data acquisition module, a driving module and a reversing module, wherein detection holes are formed in the side edges of the shell and are used for receiving the automatic assembly module and a light guide plate to be detected, the automatic assembly module comprises a light reflecting plate, a reflecting film, a limiting block and a backlight assembly, the reflecting film and the light reflecting plate are sequentially arranged in the shell from top to bottom, a detection groove is formed between the backlight assembly and the reflecting film, the detection groove is used for installing the limiting block and the light guide plate to be detected, an LED lamp strip is arranged on one side of the detection groove, a guide groove is formed in the top of the shell, the guide groove is connected with the data acquisition module in a sliding mode, the data acquisition module comprises a moving column and a colorimeter, the moving column and the guide groove are arranged in a matched mode, the colorimeter is arranged below the moving column and is used for acquiring performance parameters of the light guide plate to be detected, the driving module and the reversing module are arranged above the shell, the driving module and the driving module is connected with the light guide plate to be detected according to the preset movement parameters, and the movement rules are used for acquiring the moving column and the driving module. Optionally, the reflector plate and the limiting block are connected with the inner wall of the shell through springs. Optionally, a side of the reflector, which is close to the detection hole, is provided with an inclined wedge surface. Optionally, the driving module comprises a first motor, a driving connecting rod, a driven connecting rod, a moving guide rail and a first guide rail, wherein the first motor and the first guide rail are both arranged on the shell, one end of the driving connecting rod is connected with the first motor, the other end of the driving connecting rod is connected with the driven connecting rod, one end of the driven connecting rod, which is far away from the driving connecting rod, is fixedly provided with the moving guide rail, the moving guide rail is arranged on the first guide rail in a sliding manner, a through hole groove is formed in the moving guide rail, and the moving column is arranged in the through hole groove in a sliding manner. Optionally, the reversing module includes support frame, second motor, threaded rod and slider, the support frame sets up the top of first guide rail, the second motor is installed one side of support frame, the threaded rod is installed the below of support frame, and with second motor drive is connected, the slider slides and sets up on the threaded rod, the slider with pass through spring coupling between the movable column. In order to achieve the above object, the present invention provides a method for detecting performance of a large-sized light guide plate, which is applied to a device for detecting performance of a large-sized light guide plate, including: S1, inserting a light guide plate to be detected into a detection groove in an automatic assembly module from a detection hole, pushing a limiting block to move backwards by the light guide plate to be detected, and pushing the light guide plate to be detected to a backlight assembly through a reflecting plate when the limiting block moves to a preset position to form a backlight module; S2, starting an LED lamp belt and a first motor, moving a sliding block to one end of a threaded rod far away from the second motor, dragging a moving column through the