TW201003142A - Color filter defect correction method and color filter defect correction device - Google Patents

Abstract

To provide a color filter defect correction method and a color filter defect correction device with which abnormality of correction processing can be accurately detected. A color filter defect correction device 101 includes an image processing part 3 for acquiring an image of an area including at least the defect of a color filter and a correction processing part 50 for performing correction processing of the defect. he image processing part 3 acquires images of the area including the defect before and after the correction processing and compares brightness of respective images and detects the abnormality of the correction processing on the basis of the comparison result.

Description

201003142 VI. Description of the Invention: [Technical Field] The present invention relates to a color filter defect correction method and a color filter defect correction device, and more particularly to a color filter defect correction method for detecting an abnormality of a correction process And color filter defect correction device. [Prior Art] A color filter called a black matrix has a grid pattern t (a material such as chromium, chrome oxide, and resin) and a colored region (hereinafter also referred to as color filter) on a color filter of a constituent element of a liquid crystal display. Slice area). The defects in the black matrix formation stage include: a black matrix protruding to the color pupil region: a black defect at this stage of colorlessness, and a white defect lacking a black matrix. In addition, there are also black defects caused by color mixing after coloring, and white defects caused by color shedding. In the past, it was used by the operator to view the photographic image, to repair the black defect with laser light, or to correct the white defect. For example, the color filter defect correction method described in the patent document υ = = 。 。 = = = = = 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色The method of correcting the defect of the color light film in the color is compared with the brightness of the pixel of the defect detection object: = pixel (4) 'step of detecting the defect detection-based defect based on the comparison result' and the irradiation according to the detection line At least one of the laser light and the ink coating step = the color light film holder, the special opening 2008-0 1 5472 (special exposure of the following color light film defect correction method 1 article; 2) JP, fixed configuration

2075-1Q346-PF 201003142 Color filter defect correction method in the color filter defect correction device of defective color filter, I include: image of defect detection of halogen based on the chroma of the element The processing step, and the correction processing step of the correction processing of at least one of the smear and the smear of the smear. Patent Document 1: JP-A-2007-233299 (Patent Document 2) Japanese Laid-Open Patent Publication No. Hei No. Hei. The case where the thin portion of the ink was detected and the case where the portion not filled with the ink was detected were judged to be a correction abnormality. However, the ink coating correction is not the only one in which the ink concentration is poor, and the ink is deteriorated as the ink is deteriorated. When the color filter and the film defect correction device are automatically operated, it is necessary to detect the excessive ink discharge and issue an alarm at an early stage. The phenomenon. Moreover, a large amount of ink is replenished due to excessive ink discharge, and the film thickness thereof is also up to the amount of the patent document 1 and sometimes it is here, and the excess ink is made up of a large amount of ink coated with inks of various ethnic groups. It is placed for a long time and becomes sticky, and is filled into the coating needle, which is the main reason for excessive ink discharge. The coated ink is several times to several tens of tens of C m of a predetermined coating diameter. Therefore, the light transmitted through the light source is hard to pass, and the method described in Patent Document 2 cannot detect that the ink is out. Therefore, the color filter further defect correction method for processing the abnormal attack method is to provide correct correction and color filter defect repair 2〇75'1〇346-pf 4 201003142 for solving Correction of the means of the subject: the method of the method of performing the correction of the defect; the step of performing the correction processing of the defect; the step of the color filter of the color filter of the color filter of the color filter; Obtaining the steps of performing the image: the image of the region after the correction; comparing the brightness of the image and detecting the abnormality of the correction process according to the comparison result. Γ ^ ^佳: The image before the silk correction process Steps and 2: the step of illuminating the image is performed by using a light source to take a transmission image of the -n light-receiving sheet, and in the step of detecting the correction, 1 is in each of the images, and the color (four) light sheet is The area where the amount of change in the brightness before and after the correction processing is one or less than the predetermined value 'detects the abnormality of the correction processing based on the size of the detected one or more areas. This is good In the step of detecting the abnormality of the correction processing, if the sum of the areas of the areas where the § has been detected or the area of the plurality of points is larger than the predetermined value, it is determined to be abnormal. More preferably: in the detection correction processing In the abnormal step, the sum of the length dimension and the width dimension of the circumscribed rectangle of the detected one or more regions is determined, and if the average value of the calculated sum 1/2 is larger than the predetermined value, the judgment is made. Preferably, it is preferable that the step of acquiring the image before the correction processing and the step of acquiring the image after the correction processing are performed by using a projection (ejecting) light source to be included in the color filter. The reflected image of the correction region of the correction process and the region of the region larger than the correction region are detected in the abnormality of the detection correction process, and are detected in the respective images in the color 2075-10346-PF 5 201003142 The defect of the filter 与 & 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 The size is detected as an abnormality of the correction processing. It is preferable that the detected one of the expressions in the step of detecting the abnormality of the correction processing; the sum of the areas of the regions at the t complex is larger than the predetermined 僧The lower part is judged to be abnormal. In the step of detecting the abnormality of the correction process, the length of the circumscribed rectangle of the area at the detected position or the complex number is :: and the sum of the dimensions 'When the calculated mean value of #1/2 is greater than the predetermined value, it is judged to be abnormal. This is also preferable. The method of correcting the color calender defect further includes: in the case of the abnormality of the correction processing In the next step, the color filter is not subjected to the correction processing of the new defect, and the alarm is issued. - It is better to: the color light film defect correction method includes: the step of displaying the above image and the issuing After the alarm, the operator is convinced that the step of correcting the new defect in the color light-receiving sheet = solution = problem. The color light-receiver defect 2 of an example of the present invention includes: obtaining color light The film contains at least defects The image processing unit image of the shirt region 2; and modifications are to the processing unit executes the correction processing of the defect, the image of the image processing Xi domain, comparing the "and" after the area being processed _ ::. ^Improve the effect of the invention based on the comparison result. According to the present invention, it is possible to accurately detect the abnormality of the correction processing.

2〇75-i〇346-PF 6 201003142 [Embodiment] The following 5 shows the embodiment of the present invention. Further, the same or equivalent parts in the drawings are not described by the same symbols. [Structure and basic operation] Fig. 1 is an external view showing a configuration of a color filter defect correcting device according to an embodiment of the present invention. According to the first drawing, the color filter defect correction device 1 〇i includes a control computer (control unit) 2, an image processing unit 3, a laser beam for the objective lens 4, and the chuck table 6 to apply the ink portion 7 and the ink material. Part 9, display screen 1 透过, transmission source u, projection (emission) light source 12, CCD camera 13, X platform u, Y platform 2 2, Z a 9 q - ° laser irradiation portion 7, and ink coating portion g The correction processing unit 50° X platform 21, the Y stage 22, and the Z-axis stage 23 constitute a position determining device 51. The control computer 2 executes the color filter defect correction device 1

Control, that is, the control computer 2 controls each unit mounted in the color filter defect correction device 101. CCD (charge coupled devices) camera 13 Shoot color filters. Light is transmitted through the light source 投射 and the projected (ejected) light source 丨 2 to the color light-emitting sheet. The control computer 2 controls the transmission of the light source 11 and the projection (emission) light source 12 to the brightness of the defect. Further, the control computer 2 performs focus adjustment of the objective lens 4 to focus the focus on the color filter. The image processing unit 3 acquires an image captured by the CCD camera 13. The image processing unit 3 detects the defective position of the color filter based on the captured image. The display screen 10 displays an image of the color filter acquired by the image processing unit 3. 2075-10346-PF 7 201003142 The position determining device 51 changes the position of the color filter. That is, the platform 21 and the Y stage 22 change the position of the color filter in the horizontal direction. The z-axis table 23 changes the height of the correction processing unit 5A with respect to the cymbal stage 21 and the gamma level 22. The σ chuck table 6 is a platform for carrying and fixing a color filter or the like of a correction target. ^ The laser irradiation portion 7' causes the laser light to be transmitted through the slit (not shown) to the color filter. The ink application portion 9' coats the color filter on the defect to be corrected. ^ 'And the control computer 2 detects the X fruit 21, γ flat a 22, month 7 red 〇〇 σ σ U and Z axis table 23 according to the defect of the image processing unit 3, respectively, for color filter The irradiation position of the laser light of the light sheet and the coating position of the ink [Operation] The following describes the color filter defect correction method of the embodiment of the present invention, that is, the color light film defect correction device of the embodiment of the present invention Correction processing of the color filter, and detecting the operation when the correction processing is abnormal. Please display the correction processing of the color filter defect repair color filter according to the embodiment of the present invention, and the flow chart of the check and program. The operation at the time of detecting the abnormality of the correction processing is described here. It is assumed that the color grading sheet is carried on the slick table 6 and the position correction such as the color filter or the tilt of the light sheet is completed. The control computer 2 downloads the defect information from other devices. The computer 2 collects the coordinate values of the inspection & ° technical defects from the host computer, and the color light film: that is, the type of the color filter (large, medium) , small, etc. = product value, color filter 'small size temple" and lack of type information).

2075-1O346-PF 201003142 Light film = to ΓΓ! 2 Control position determines the setting of 51, and the color crossing position is processed. ". It is possible to correct the defect of the color filter S2). Further, the brightness of the control computer and the projection (emission) light source 12 is transmitted through the light source 11 magnification (step S3). (4) The objective lens 4 is switched to a specific step S4. The camera 13 captures the color of the inspection target (step #Image processing unit 3 acquires (10) the camera 13 takes a picture of the defect: Position (step S6). Here, the image processing 43 may use the patent document i or the special (four) method, or may use other known image processing methods. The control unit 3 controls the position determining means 5 so that the position of the center of gravity of the defect is located at the center of the input image (step S7). Furthermore, the center of gravity of the defect is not necessarily made. The position is located at the center of the input image, as long as the control is such that the image can be located at the center of the image ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^. The detected missing part is located in the input followed by the CCD camera! 3 in the color data The light sheet captures an area A including at least the detected defect. The image processing unit 3 captures the captured image (hereinafter also referred to as the pre-correction image) (step ^ followed by the correction processing, Ai, P) 5〇 For example, performing a thunder on a color filter After the fine light irradiation, the ink coating is performed on the color light sheet (step S9). The shot/following 'CCD camera 13' takes a region A in which the repair is performed in the color light sheet. The image processing unit 3 #贝取(10) camera ^ 3 capture images (hereinafter also referred to as corrected images) (steps to lose

2075-10346-PF 9 201003142 Following the 'image processing unit 3', the image of the image before and after the correction processing is π, and the # comparison result detects the abnormality of the correction processing (step Sichuan). Then, when the image processing unit 3 detects the correction of the color filter (YES in step SU), the image processing unit 3 does not perform the new defect processing, that is, does not execute the new defect processing, and sends out the basket phase, and then sends out (4) In the case of the report (step S12), if it is not detected, the correction processing of the 1st yarn, the anti-staining/skinning, and the 1U shortage is performed (NO in step S11). In the 'image processing unit 3', the 捋蟢 山 敬 + ^ ^ ^ Λ Λ Λ Λ Λ Λ Λ Λ Λ Λ Λ Λ Λ Λ Λ Λ Λ Λ Λ Λ Λ Λ Λ Λ Λ 。 。 。 The operator, after stopping the alarm, confirms that the repaired jp yidan/your 乜 别 / 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 In the case, the color filter and the film defect correction device i 1G1 are given an operation re-opening instruction. The color-developing sheet defect correcting device m receives the instruction and restarts the automatic operation of the correction processing (step is called towel, yes). Further, the operator gives an operation instruction to the color filter defect correction device after manually correcting the correction. Fig. 3 is a view showing an image of a white defect before correction processing in a color photographic film by using a light source. See Fig. 3, the handle drawn as a dashed circle c covering the white defect indicates the predetermined circle of application of the ink. Fig. 4 is a view showing an image of a white defect after ink application in a color filter by using a light source. Mai sees Fig. 4, because the ink is not filled to the respective corners of the white defect WA, leaving the white defects WB1 to WB3. Fig. 5 is a view showing an image of the image after the image shown in Fig. 3 is binarized. 10

2075-10346-PF 201003142 Referring to Figure 5, the bright position in the image shown in Figure 3 is shown in white and the dark position is indicated in black. Fig. 6 is a view showing an image obtained by subtracting the brightness of the image shown in Fig. 4 from the brightness of the image shown in Fig. 3 and then binarizing the image. Referring to Figure 6, the position where the brightness changes greatly is indicated by white, and the small position is indicated by black. Fig. 7 is a view showing a comparison result of the image shown in Fig. 5 and the image shown in Fig. 6. See Figure 7, where the image shown in Figure 5 and the image shown in Figure 6 do not match the brightness in white, and the consistent position is shown in black. The images shown in Figs. 5 to 7 are generated by the image processing unit 3. When the abnormality of the correction processing shown in Fig. 4 is detected, it is sufficient to obtain a transmission image of the defect position of the color filter month before and after the correction processing. In other words, when the image processing unit 3 obtains the transmitted image of the color filter by using the light source, the obtained pre-corrected image and corrected image are obtained.

In the image, the luminance before and after the correction processing inside the defect does not change, that is, Y detects a region where the amount of change in luminance before and after the correction processing of the defect position of the swatch filter is equal to or less than a predetermined value. Then, the image processing unit 3' detects the correction of, for example, the sum of the areas of the image processing portion based on the detected size of the region _ _ 4 γ$ ^ or the number of the complex region, and the value is determined to be a correction abnormality. 3' Calculate that the sum of the white areas of the white and right sides in the image shown in Fig. 7 is larger than the predetermined one, and the d' of the circumscribed rectangle of the color of the image processing part respectively calculates the vertical size and the image in the image shown in Fig. 7 The sum of the lateral dimensions, followed by white

2075-1034 6-PF 11 201003142 If the average value of the 1 / 2 of the calculated sum on the right is greater than the predetermined value, it is judged to be abnormal. Fig. 8 is a view showing an image of a white defect before correction processing in a color filter using a projection (emission) light source. Referring to Fig. 8, the dotted circle CI depicted as covering the white defect wa indicates a predetermined circle of application of the ink. Fig. 9 is a view showing an image of a white defect position after ink application in a color filter using a projection (emission) light source. Referring to Fig. 9, since the ink is excessively inked, the ink is thickly coated on a region much larger than the circle CI. Fig. 10 is a view showing an image obtained by subtracting the luminance of the image shown in Fig. 9 and then binarizing the luminance of the image shown in Fig. 8. See Fig. 10 'The position where the brightness changes greatly is white #, and the small position is shown in black. The video image shown in Fig. 10 is generated by the video processing unit 3. When the abnormality of the correction processing shown in Fig. 9 is detected, it is only necessary to obtain a reflection image including a circle CI or a region larger than the circle π before and after the correction processing. ～P, the image processing unit 3 detects the transmitted image before and after the correction process in the obtained pre-corrected image and corrected image when the projected image is transmitted using the projection (ejected) light source. For example, the area where the amount of change in luminance before and after the processing is at a predetermined value is corrected. Next, the image processing 333, the size of the area at the factory or the plurality of points, detects the abnormality of the correction processing. For example, the image processing unit 3 calculates the total * of the area at the first image, and if the calculated white: the total of the white matter in the shirt image is larger than the predetermined

2075-10346-PF 12 201003142 The value is judged as a correction abnormality. The image processing unit 3 calculates the sum of the longitudinal dimension and the lateral dimension of the circumscribed rectangle of the first aspect, and the average value of the 1/2 of the sum calculated by the right angle is greater than the predetermined autumn value greater than the threshold value. In the case of the _ method and the patent document 2, it is impossible to detect the unfavorable condition of the ink that has not passed the ink, and judge it as normal correction. In the color filter lacking color sheet defect correction device of the embodiment, the image of the region in which the defect is detected in the color film is obtained. Then, the defect correction processing is performed; Then, 'obtain the image of the above area. Then compare the brightness of the pre-corrected image and the corrected image according to the abnormality of the correction process. With this configuration, it is possible to accurately detect the shortage of the ink application area, and In the case of excessive ink, it is enough to detect the abnormality of the correction work by the image processing, so that the correction operation can be automated. Furthermore, since the differential lifting of the repair work can be detected early, the ink exchange can be taken early. Wait The present invention can be efficiently performed. The above-described embodiments are described to make the present invention easy to understand. It is not intended to limit the present invention. Therefore, the various elements disclosed in the above embodiments are included in the present invention. All design changes in the technical field are equal. [Schematic description of the drawings] Fig. 1 is a view showing the appearance of a color filter defect correction device according to an embodiment of the present invention.

2075-10346-PF 13 201003142 Fig. 2 is a flowchart showing an operation procedure when the correction processing of the color filter is performed to detect the abnormality of the correction processing by the color filter defect correction device according to the embodiment of the present invention. Fig. 3 is a view showing an image of an image of a white defect before correction processing in a color filter by using a light source. Fig. 4 is a view showing an image of a white defect after ink application in a color filter by using a light source. Fig. 5 is a view showing an image of the image after the image shown in Fig. 3 is binarized. Fig. 6 is a view showing an image obtained by subtracting the brightness of the image shown in Fig. 4 from the brightness of the image shown in Fig. 3 and then binarizing the image. Fig. 7 is a view showing a comparison result of the image shown in Fig. 5 and the image shown in Fig. 6. Fig. 8 is a view showing an image of a white defect before the correction processing in the color pupil using a projection (emission) light source. Fig. 9 is a view showing an image of a white defect position after ink application in a color filter using a projection (emission) light source. Fig. 10 is a view showing an image obtained by subtracting the luminance of the image shown in Fig. 9 and then binarizing the luminance of the image shown in Fig. 8. [Description of main component symbols] 2 Control computer (control unit) 3 Image processing unit 4 Pair of objective lens 6 Chuck table 7 Laser irradiation unit

2o^5-1〇346-PF 14 201003142 9 Ink application unit 10 Display screen 11 Projecting (ejecting) light source 13 through light source 12 CCD camera 21 X platform 22 Y platform 23 Z-axis table 50 Correction processing unit 51 position determining device 1 01 color filter defect correction device 2075-10346-PF 15

Claims (1)

201003142 VII. Patent application scope: 1. A color filter defect correction method, comprising: a step of acquiring an image of a region containing at least a defect in a shirt color filter; a step of performing a correction processing of the defect; The step of correcting the image of the region after the processing; comparing the brightness of the image, and detecting the abnormality of the correction processing based on the comparison result. 2. The color filter defect correction method according to the second aspect of the patent application 纟 tt, the step of obtaining the Vision 4 image before the correction process and the step of obtaining the image after the correction process are performed using the transmitted light source respectively Obtaining a transmission image of the color filter, in the step of detecting the abnormality of the correction processing, detecting that the amount of change in luminance before and after the correction processing of the defect of the m piece in each of the images is equal to or less than a predetermined value - The area at or at the complex point, the abnormality of the correction process is detected based on the size of the area at the inspection, location or complex. The sum of the areas of the color grading sheet defect correction method described in item 2 of the claim patent, in the step of detecting the abnormality at the correction point, the area at the detected one or more points. If it is greater than the predetermined value, it is judged as abnormal. 4. The positive method of the patent application range, the sum of the size of the area at one or more points detected by the detection correction processing, and the abnormality of the color filter defect repaired by the two items of the calculated sum In the step, it is judged to be abnormal in the case where the longitudinal dimension of the circumscribed rectangle and the average value of the horizontal 1 / 2 are larger than the predetermined value of 2075-1034 6-PF 201003142. 5 · If applying for a patent Sutuchu, τ ^ ^ The color filter defect repair method described in item 1 above, in the process of obtaining the imaginary &amp; Έ &quot; processing of the other image and the correction Steps of processing the image after taking the image, and using the projection (ejecting) light source respectively = a reflection image of a region including the correction region in which the correction processing should be performed in the color light sheet and larger than the correction region In the step of the detection correction processing, the change in the brightness before and after the correction processing of the color filter in the above-described respective images is detected as a predetermined value or more. In the upper or plural area, the correction processing is detected based on the size of the detected one or more areas. 6. The color filter defect repair method of claim 5, wherein the sum of the areas of the detected one or more regions in the step of detecting the abnormality of the correction processing If it is greater than the predetermined value, it is judged as abnormal. 7) The color filter defect repair method according to the fifth aspect of the patent application 5 μ, +, &gt; / τ ^, in the step of detecting the abnormality of the correction processing, respectively, the detected When the sum of the length dimension and the width dimension of the circumscribed rectangle of the one or the plurality of regions is greater than the predetermined value of the calculated sum of 1/2, it is determined to be abnormal. 8. The color grading sheet defect correction method according to claim 1, further comprising: in the case where the abnormality of the correction processing has been detected, the correction processing of the new defect is not performed on the color full slice. ^ Steps to alert. 9. The color filter defect repair 2075-1034 6-PF 17 201003142 as described in claim 8 further includes: a step of displaying each of the above images; and receiving 'from the operator after issuing the alarm Instructing the step of performing a new defect correction process on the color light guide. </ RTI> A color filter defect correction device comprising: an image processing unit that acquires an image of a region including at least a defect in a color filter; and a correction processing unit that performs a correction process of the defect, the image processing unit The image of the area after the correction processing is acquired, the brightness of the image is compared, and the abnormality of the correction processing is detected based on the comparison result. 2〇75~1034 6 —ρρ 18