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Vision inspection apparatus and method of driving the same

一种视觉检查、灰阶的技术，应用在测量装置、电视、彩色电视等方向，能够解决色差、饱和缺陷等问题

Active Publication Date: 2020-06-23
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, display defects such as chromatic aberration occur when the charge amount of the CCD is insufficient, and saturation defects occur when the charge amount of the CCD is excessive

Method used

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  • Vision inspection apparatus and method of driving the same
  • Vision inspection apparatus and method of driving the same
  • Vision inspection apparatus and method of driving the same

Examples

Experimental program
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Embodiment Construction

[0038] Hereinafter, the inventive concept will be explained in more detail with reference to the accompanying drawings.

[0039] figure 1 is a schematic block diagram showing a visual inspection device according to an embodiment.

[0040] refer to figure 1 , the visual inspection system includes a display panel 100 for inspection and a visual inspection device 200 for inspecting the display panel 100 .

[0041] The visual inspection apparatus 200 includes an inspection controller 210 , an imaging converter 220 , an exposure time controller 230 and an inspection corrector 240 .

[0042] The inspection controller 210 controls the overall operation of the visual inspection device 200 .

[0043] The inspection controller 210 may display a plurality of reference gray scales on the display panel 100 .

[0044] The plurality of reference grayscales may, for example, include 255 grayscale, 192 grayscale, 128 grayscale, 96 grayscale, 64 grayscale, 32 grayscale, 24 grayscale, 16 gra...

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PUM

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Abstract

The invention relates to a vision inspection apparatus and a method of driving the vision inspection apparatus, the visual inspection apparatus comprising: an inspection controller that displays a grid pattern having a plurality of gray scales on a display panel; an imaging converter that drives the charge-coupled device with a predetermined or set exposure time and converts a grid pattern displayed on the display panel into a grid pattern signal; a charger calculator that calculates an amount of charge per unit time of each color of the reference grayscale using the reference grayscale signalincluded in the raster pattern signal and the set exposure time; and an exposure time calculator that calculates an optimal exposure time for each color of the reference gray scale based on the target charge amount of the reference gray scale.

Description

technical field [0001] The technical field relates to an inspection device for defect inspection of a display panel and a method for driving the inspection device. Background technique [0002] In general, a display panel (eg, a display unit) for a liquid crystal display includes a lower substrate, an upper substrate facing the lower substrate, and a liquid crystal layer interposed between the lower substrate and the upper substrate. The lower substrate has a pixel area and a peripheral area to which a driving signal for driving the pixel area is applied. [0003] The pixel area includes data lines extending in a first direction, gate lines extending in a second direction and crossing the data lines, and pixel electrodes connected to the gate lines and the data lines. The peripheral area includes a first driver chip pad and a second driver chip pad, a driver chip for providing data signals is installed on the first driver chip pad, and a driver chip for providing a gate sig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13
CPCG02F1/1309G01J1/4214G01J3/506G01J3/465G02F2203/30H04N17/002H04N25/534H04N25/71H04N23/84G01N21/95G01N2021/9513G01J1/4209G09G3/36G09G2320/0233G09G2320/0242G01M11/0264G09G3/006H04N25/53
Inventor 李俊荣文桧植任炯禹郑在燮蔡旻烨
Owner SAMSUNG DISPLAY CO LTD
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