Embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is described in further detail.
See also Fig. 1, the detection system 100 of a kind of colored filter that first embodiment of the invention provides.This detection system comprises 40, one photodiodes 50 of 10, one image sensors of a base station and three light sources 20,30,60.This image sensor 40 is a Charged Coupled Device (Charged Coupled Device, CCD), link to each other with a Flame Image Process and display device 42, this photodiode 50 links to each other with a signal Processing and display device 52, and three optical splitters 34,36,38 are set at respectively on the light path of three light sources 20,30,60.
Preferably, this light source 20 is a white light source.The back side of the illumination light 22 that this white light source sends colored filter 200 to the base station, illumination light 22 can be regarded mixing of red (R), green (G), blue (B) three looks as.This colored filter 200 is a semi-manufacture colored filter, comprise glass substrate and be formed at black matrix on the glass substrate, or be a finished product colored filter, comprise a glass substrate, black matrix and some RGB color layers that is formed between black matrix that is formed on the glass substrate.Lens 24 are set between this colored filter 200 and the light source 20, and the light 22 that these lens 24 send light source 20 converges at a bit on the colored filter 200.Further, optical fiber 28 is used to guide light 22 that light source 20 sends to these lens 24, and therefore, the placement location of light source 20 is unrestricted.
Light source 30 is preferably light emitting diode, sends the front of another illumination light 32 to colored filter 200.The light 32 that lens 26 send light source 30 converge on the colored filter 200 a bit.Light source 60 is preferably a laser diode that has lens 64, this light source 60 emissions one laser 62, these lens 64 with this laser 62 converge on the colored filter 200 a bit.The size of this convergent point is littler than the size of the black matrix of colored filter 200.
Optical splitter 38,34 is between image sensor 40 and lens 26.Optical splitter 36 is set up laser 62 is reflexed to optical splitter 34, optical splitter 34 reflects this laser 62 again to optical splitter 38, this laser 62 passes optical splitter 38 and arrives colored filter 200, is returned and pass optical splitter 36 by colored filter 200 laser light reflected 62 along former road.Though light 22,32,62 marks simultaneously in Fig. 1, this light source 20,30,60 is not to act on simultaneously on the colored filter 200.Below will describe the actual working state of this light source 20,30,60 in detail.
This base station 10 carrying colored filters 200, and in testing process, can drive colored filter 200 and move along X-Y plane.Flame Image Process and display device 42 comprise a monitor, and this monitor sensor 40 capable of displaying image photographs the image of colored filter 200.In the present embodiment, this signal Processing and display device 52 are oscillographs, the electric signal that this oscillograph receives and demonstration is produced by photodiode 50.
Detection system 100 can be used for detecting semi-manufacture colored filter or finished product colored filter etc., below introduces this detection system in detail.
See also Fig. 1, Fig. 2 A and Fig. 2 B, a kind of first method detects a semi-manufacture colored filter 200.Base station 10 keeps static, and light source 30,60 is in opening.In in this case, light source 30 sends illumination light 32, light source 60 sends laser 62, this illumination light 32 is incident to optical splitter 38 backs and is reflexed to lens 26 by optical splitter 38, lens 26 with this illumination light 32 converge on the colored filter 200 a bit, therefore, image sensor 40 can photograph the zone that colored filter 200 is illuminated, the monitor of Flame Image Process and display device 42 shows that this colored filter 200 is illuminated the image in zone, shown in Fig. 2 A.Be exaggerated because of being illuminated the zone, a testing staff can detect the quality of semi-manufacture colored filter 200 black matrixes easily from image.
Meanwhile, laser 62 is assembled by lens 64, is incident to optical splitter 36 then, is reflexed to optical splitter 34 by optical splitter 36 again.These laser 62 of optical splitter 34 reflection are to optical splitter 38, and laser 62 penetrates this optical splitter 38 and arrives lens 26, lens 26 with this laser 62 converge on the semi-manufacture colored filter 200 a bit.As previously mentioned, the spot size of the laser of being assembled 62 is littler than the size of the black matrix of semi-manufacture colored filter 200, and laser 62 can return by black matrix reflection and along former road.Passed optical splitter 36 and be incident to photodiode 50 by the black matrix laser light reflected 62 of semi-manufacture colored filter 200, photodiode 50 receives this laser 62 and produces an electric signal based on this laser 62, signal Processing and display device 52 receive this electric signal and it are shown as oscillogram, can the black matrix quality of semi-manufacture colored filter 200 be detected according to oscillogram.Because base station 10 is static with semi-manufacture colored filter 200, so the oscillogram that signal Processing and display device 52 show is a straight line, shown in Fig. 2 B.
See also Fig. 1, Fig. 3 A and Fig. 3 B, a kind of second method detects semi-manufacture colored filter 200.Base station 10 is to move in the X-axis direction, and has only light source 60 to be in opening.In in this case, laser 62 along as the described path of first method propagate and converge on the semi-manufacture colored filter 200 a bit, again by the black matrix reflection of semi-manufacture colored filter 200, Yan Yuanlu is back to optical splitter 36, as described in first method.The laser 62 of returning that is reflected penetrates optical splitter 36 and is incident to photodiode 50, and photodiode 50 receives this laser 62 and produces an electric signal based on this laser 62.Signal Processing and display device 52 receives these electric signal and it is shown as oscillogram, shown in Fig. 3 B, can the quality of the black matrix of semi-manufacture colored filter 200 be detected according to oscillogram.Because base station 10 moves with semi-manufacture colored filter 200, the oscillogram that signal Processing and display device 52 show is a curve, and the peak value of this curve is represented black matrix part.At this moment, image sensor 40 still can photograph the part of semi-manufacture colored filter 200 and show this photographing section with image format on the monitor of Flame Image Process and display device 42, as shown in Figure 3A.Because of this photographing section is exaggerated, the testing staff can detect the quality of semi-manufacture colored filter 200 black matrixes easily from image.
See also Fig. 1, Fig. 4 A and Fig. 4 B, a kind of third party's method detects a semi-manufacture colored filter 200, and base station 10 moves along Y direction, has only light source 60 to be in opening.In in this case, an image shown in Fig. 4 A and an oscillogram, shown in Fig. 4 B, is shown in respectively on the monitor and signal Processing and display device 52 of Flame Image Process and display device 42.Wherein, the peak value of oscillogram is represented black matrix part.
See also Fig. 1, Fig. 5 A and Fig. 5 B, a kind of cubic method detects a finished product colored filter 200, and base station 10 moves in the X-axis direction, and has only white light source 20 to be in opening.In in this case, light source 20 sends 22 to lens 24 of illumination light, lens 24 with this illumination light 22 converge on the finished product colored filter 200 a bit, but the size scioptics 24 of convergent point are adjusted.In this method, the size of this convergent point is littler along the size of X-direction than the color layers of colored filter 200.Image sensor 40 is taken the part of this finished product colored filter 200, and shows this photographing section with image format on the monitor of Flame Image Process and display device 42, shown in Fig. 5 A.Because of this photographing section is exaggerated, the testing staff can detect the quality of finished product colored filter 200 black matrixes or color layers easily from image.
When white-light illuminating light 22 penetrated finished product colored filter 200, the color that penetrates emergent light can become the corresponding color that penetrates color layers on the colored filter 200, as R, G or B.This emergent light passes optical splitter 38 and is incident to optical splitter 34, is reflexed to optical splitter 36 by optical splitter 34, passes optical splitter 36 again and is incident to photodiode 50.This photodiode 50 receives this emergent light and produces an electric signal based on this emergent light, signal Processing and display device 52 receive this electric signal and it are shown as oscillogram, shown in Fig. 5 B, the testing staff can assess the quality of this finished product colored filter 200 according to this oscillogram.The waveform that signal Processing and display device 52 shows is represented between the different pixels of colored filter with a kind of color layers, as the relative intensity and the intensity distributions of R, G, B color layers.
See also Fig. 1, Fig. 6 A and Fig. 6 B, a kind of the 5th method detects a finished product colored filter 500, and base station 10 moves along Y direction, has only light source 60 to be in opening.In in this case, an image of finished product colored filter 200, as shown in Figure 6A, and an oscillogram, shown in Fig. 6 B respectively at showing on the monitor of Flame Image Process and display device 42 and signal Processing and the display device 52.The waveform table that signal Processing and display device 52 show is shown as in the product colored filter 200, with a kind of intensity and uniformity coefficient of color layers, as the intensity and the uniformity coefficient of red color layer.
See also Fig. 7, a kind of detection system 700 that is used for sense colors optical filter 200 that second embodiment of the invention provides.This detection system 700 is similar to the detection system 100 of first embodiment of the invention, but this detection system 700 further comprises 70, one optical fiber 72 of a photoswitch and signal Processing and display device 74.This photoswitch 70 be the illumination light 22 sent with reflection source 20 position of a reverberator and being movable to optical fiber 72, this optical fiber 72 receives these illumination light 22 and it is directed to signal Processing and display device 74.In the present embodiment, this signal Processing and display device 74 are an optical spectrum analyser.
See also Fig. 7, Fig. 8 A and Fig. 8 B, a kind of detection method of finished product colored filter 200, it is static that base station 10 keeps, have only light source 20 be in opening and photoswitch 70 be in one can indirect illumination light 22 to the position of optical fiber 72.In in this case, an image of finished product colored filter 200, shown in Fig. 8 A, and an oscillogram, shown in Fig. 8 B, be shown in respectively on the monitor and signal Processing and display device 74 of Flame Image Process and display device 42.The oscillogram that signal Processing and display device 74 shows is represented penetrance and color light wavelength, as the relation of the wavelength of green glow.Other detection method of this detection system 700 is similar to the detection method of the detection system 100 of first embodiment of the invention, can implement with reference to it.
See also Fig. 9, the detection system 900 of a kind of colored filter that third embodiment of the invention provides.This detection system 900 comprises 40, one white light sources 20 of 10, one image sensors of a base station and signal Processing and display device 74.This image sensor 40 is that (ChargedCoupled Device's Charged Coupled Device CCD), links to each other with a Flame Image Process and display device 42, and optical splitter 34 is disposed between the finished product colored filter 200 on image sensor 40 and the base station 10.
Illumination light 22 of light source 20 emissions is to the back side of finished product colored filter 200.Lens 24 between light source 20 and finished product colored filter 200, these lens 24 with this illumination light 22 converge on the finished product colored filter 200 a bit.Further, the illumination light 22 that optical fiber 28 guiding light sources 20 send is to these lens 24, and therefore, the placement location of light source 20 can be unrestricted.In the present embodiment, this signal Processing and display device 74 are an optical spectrum analyser, and this signal Processing and display device 74 receive the illumination light 22 of passing from finished product colored filter 200.In addition, an optical fiber 72 can be directed to the illumination light 22 of passing colored filter 200 this signal Processing and display device 74, so the installation site of signal Processing and display device 74 is unrestricted.This detection system 900 can be used for detecting or assessment finished product colored filter 200, and the using method of this detection system 900 is similar to the detection system 700 that second embodiment of the invention provides.
In addition, those skilled in the art can also do other variation in spirit of the present invention, and certainly, the variation that these are done according to spirit of the present invention all should be included within the present invention's scope required for protection.