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Method for retrieving image of liquid crystal panel installing equipment

A liquid crystal panel and imaging technology, applied in nonlinear optics, instruments, optics, etc., can solve problems such as inability to achieve mixed lighting

Active Publication Date: 2010-09-15
福建华冠光电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that for one LED, one control circuit can only control one kind of brightness, so mixed lighting cannot be achieved

Method used

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  • Method for retrieving image of liquid crystal panel installing equipment
  • Method for retrieving image of liquid crystal panel installing equipment
  • Method for retrieving image of liquid crystal panel installing equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Such as Figure 4 As shown, the image retrieval method for LCD panel mounted equipment includes the following steps:

[0027] Step 10: The LCD panel and the PWB respectively arrive at the corresponding positions;

[0028] Step 20: Turn on the coaxial light, turn off the oblique light, and capture the target on the LCD panel;

[0029] Step 30: Turn on the coaxial light with another brightness, turn on the oblique light, and capture the target of the PWB;

[0030] Step 40: The PWB target and the liquid crystal panel target are aligned.

[0031] Such as Figure 5 As shown, the control circuit diagram of the liquid crystal panel installation equipment includes a circuit board, a power supply, a control signal, an LED light, and a sliding rheostat; a switch circuit board is added between the circuit board and the sliding rheostat. When the CTL terminal is 24V, the circuit switches to the sliding rheostat 1, and the sliding rheostat does not work; when the CTL terminal is...

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Abstract

The invention relates to a method for retrieving an image of liquid crystal panel installing equipment. The method comprises the following steps of: placing a liquid crystal panel and a PWB at corresponding positions respectively; starting up a coaxial light, shutting down an oblique light, and shooting a target of the liquid crystal panel; starting up the coaxial light in another brightness, starting up the oblique light, and shooting the target of the PWB; and aligning the PWB target and the liquid crystal panel target. In the method, two lighting modes are combined; as scratch on a PWB surface does not affect the glossiness of the PWB surface, the coaxial light which originally illuminates the target of the liquid crystal panel is not shut down when the coaxial light illuminates the PWB target; and the level difference after the scratch is eliminated by using the coaxial light in an illumination mode which combines the coaxial light with the oblique light, and the scratch is highlighted and turned into a bright point by using the oblique light on the basis of the coaxial light, so an ideal retrieval model is obtained, and simultaneously the normal PWB target retrieval is not affected.

Description

【Technical field】 [0001] The invention belongs to the field of liquid crystal display manufacturing, and specifically refers to an image retrieval method for liquid crystal panel mounting equipment. 【Background technique】 [0002] The function of the existing liquid crystal panel installation equipment is to align the target on the liquid crystal panel with the center of the target on the PWB, and then heat and pressurize to promote the solidification of the ACF in the PWB and the panel to permanently conduct the circuit. In order to align the target on the LCD panel with the target on the PWB, the position of the target is found through the image retrieval device on the LCD panel mounting equipment to achieve alignment. The image retrieval process is as follows: [0003] 1. In the manual state of the liquid crystal panel installation equipment, establish a benchmark model, such as figure 1 Shown: [0004] 2. Under normal conditions, the liquid crystal panel installation e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13
Inventor 沈廷斌童庆杨开染
Owner 福建华冠光电有限公司
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