A colorimeter for TFT module production

Abstract

The invention discloses a colorimeter for TFT module production, comprising a light input device, wherein the light input device comprises a lens barrel, a first lens, a light collecting plate, a second lens, a mounting tube and a lamp bead, and is used for collecting light emitted by the TFT module; a first detection device comprises a motor, a polygonal wheel, a first gear, a filter, a mounting column, a first sensor, a slide plate and a spring, and can detect light by a filtering method; a second detection device comprises a prism, a second gear, a first slide rail, a second slide rail, a second sensor, a crank and a connecting rod, and can detect light by an astigmatism method.

Description

Technical Field

[0001] The present invention relates to the field of panel optical detection equipment, and in particular to a colorimeter for TFT module production. Background Art

[0002] TFT module is a commonly used digital display technology product. In order to ensure the quality of the product during the production of TFT module, it is necessary to test the TFT module with a colorimeter during production to determine whether the light emission of the TFT module is qualified. The existing colorimeter detects light through a filter, and switches the position of the filter multiple times and detects to ensure the accuracy of the detection. However, multiple switching detections make the detection time too long, resulting in low detection efficiency.

[0003] A spectral superposition filter type imaging brightness colorimeter proposed in CN202210632552.9 includes a housing and a driving assembly, the housing is connected to a lens, the housing is rotatably connected to a turntable, the turntable is located in the housing, the driving assembly is used to drive the turntable to rotate, and the turntable has more than two fixed holes around the center of the circle, some of the fixed holes are provided with reflectors, a spectrometer is provided in the housing, the spectrometer is connected to an optical fiber, the image in the lens enters the optical fiber through the reflector, some of the fixed holes are provided with filters, a camera is provided in the housing, and the image in the lens enters the camera through the filter. A spectral superposition filter type imaging brightness colorimeter provided by the present invention integrates the spectral data and brightness color of the panel on the same instrument at the same time, simplifies the original test method and improves the test efficiency, and at the same time improves the detection accuracy for the combination of the spectrometer and the camera, but does not solve the above problems.

[0004] The present invention can use the astigmatism method to enable the reciprocating second sensor to quickly detect the missing color in the light, thereby increasing the efficiency of the first sensor's light filtering detection. Summary of the invention

[0005] To solve the above problems, the purpose of the present invention is to provide a colorimeter for TFT module production, which can use the astigmatism method to enable the reciprocating second sensor to quickly detect the missing color in the light, thereby accelerating the efficiency of the first sensor's filtering detection.

[0006] The present invention provides a colorimeter for TFT module production, comprising a shell, a display screen being arranged on the shell, a partition being arranged inside the shell, an inclined spectroscope and a reflector being arranged on the partition, the colorimeter for TFT module production also comprising a light input device arranged in front of the shell, for collecting light emitted by the TFT module; a first detection device arranged at the front end of the shell, which can detect light by a filtering method; and a second detection device arranged at the rear end of the shell, which can detect light by an astigmatism method.

[0007] Furthermore, the light input device includes a lens barrel, a first lens, a light collecting plate, a second lens, a mounting tube and lamp beads. The lens barrel is fixed to the front end of the shell, a support ring made of transparent material is fixed to the outer side of the front end of the lens barrel, a first lens is provided on the inner side of the front end of the lens barrel, the light collecting plate is fixed to the middle part of the inner side of the lens barrel, the second lens is fixed to the rear end of the inner side of the lens barrel, the mounting tube is provided in the middle part of the lens barrel, the mounting tube is located between the first lens and the light collecting plate, and a lamp bead is provided at the bottom of the mounting tube, and the lamp bead emits light through an external power supply.

[0008] Furthermore, the light collecting plate is funnel-shaped, a circular through hole is provided at the bottom of the light collecting plate, and a reflective layer is provided on the inner side of the light collecting plate and the inner side of the middle part of the lens barrel.

[0009] Furthermore, the upper end of the mounting tube is inclined, and a third lens is provided on the upper end of the mounting tube.

[0010] Furthermore, the first detection device includes a motor, a polygonal wheel, a first gear, a filter, a mounting column, a first sensor, a skateboard and a spring. The motor is fixed on the partition, the mounting column is fixed in the shell, the polygonal wheel is rotatably arranged on the mounting column, a first gear is fixed under the polygonal wheel, the first gear is meshed with the output shaft of the motor, a plurality of filters are arranged on the polygonal wheel, the first sensor is fixed on the mounting column, the first sensor corresponds to the direction of the light, the skateboard is slidably installed on the first sensor, a corresponding slide groove is provided on the first sensor, and a spring is provided between the skateboard and the mounting column.

[0011] Furthermore, the four corners of the front end of the skateboard are provided with convex plates, and the front end of the convex plates is rounded.

[0012] Furthermore, disc-shaped shading plates are provided at the upper and lower ends of the polygonal wheel, and the middle part of the polygonal wheel is a polygonal structure, so that a dark room is formed inside the polygonal wheel.

[0013] Furthermore, the second detection device includes a prism, a second gear, a first slide rail, a second slide rail, a second sensor, a crank and a connecting rod, the prism is fixed between the partition and the shell, the second gear is rotatably installed in the shell, the second gear is meshed with the first gear, the crank is fixed below the second gear, the first slide rail and the second slide rail are fixed between the partition and the shell, a pulley is rotatably provided at the front end of the second sensor, a slider is provided below the rear end of the second sensor, the front end of the second sensor is slidably installed on the first slide rail, the rear end of the second sensor is installed on the second slide rail through the slider, a connecting column is provided below the slider, and the connecting column is connected to the crank through a connecting rod.

[0014] Furthermore, the first slide rail and the second slide rail are both concentric arcs corresponding to the position of the prism.

[0015] Beneficial effects:

[0016] 1. The lens barrel is fixed to the front end of the shell, a first lens is arranged inside the front end of the lens barrel, a light collecting plate is fixed to the middle of the inner side of the lens barrel, a second lens is fixed to the rear end of the inner side of the lens barrel, a mounting tube is arranged in the middle of the lens barrel, a third lens is arranged at the upper end of the mounting tube, a lamp bead is arranged at the bottom of the mounting tube, and a transparent support ring is used to ensure the positioning of the TFT module and to be close to the TFT module. The lamp bead can be used to illuminate the TFT module, thereby reflecting the color on the TFT module, so that the colorimeter can detect TFT modules of different brightness, and the color of the TFT module can be reflected into the shell.

[0017] 2. The mounting column is fixed in the shell, the polygonal wheel is rotatably arranged on the mounting column, a first gear is fixed under the polygonal wheel, a first sensor is fixed on the mounting column, the first sensor corresponds to the direction of the light, a slide plate is slidably installed on the first sensor, a plurality of filters are arranged on the polygonal wheel, a corresponding slide groove is arranged on the first sensor, a spring is arranged between the slide plate and the mounting column, convex plates are arranged at the four corners of the front end of the slide plate, the front end of the convex plate is rounded, and light can be filtered through different filters, so as to detect the color of the light, thereby ensuring the accuracy of the colorimeter detection.

[0018] 3. The prism is fixed between the partition and the shell, the second gear is rotatably installed in the shell, the second gear is meshed with the first gear, the crank is fixed below the second gear, the first slide rail and the second slide rail are fixed between the partition and the shell, the front end of the second sensor is rotatably provided with a pulley, a slider is provided below the rear end of the second sensor, the front end of the second sensor is slidably installed on the first slide rail, the rear end of the second sensor is installed on the second slide rail through the slider, a connecting column is provided below the slider, the connecting column is connected to the crank through a connecting rod, so that the light can be diverged through the prism, so that the light of various colors in the light is separated in a fan shape, and the connecting column is driven by the connecting rod, thereby driving the second sensor to slide back and forth on the first slide rail and the second slide rail, so that the second sensor reciprocates to detect the light diverged by the prism, thereby detecting the color of the TFT module, and reducing the number of rotations of the first sensor through the rapid detection of the second sensor, thereby accelerating the detection efficiency of the first sensor.

[0019] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 The cross section of the present invention Figure 1 .

[0022] Figure 3 The cross section of the present invention Figure 2 .

[0023] Figure 4 It is a cross-sectional view of the light incident device of the present invention.

[0024] Figure 5 It is a cross-sectional view of the light collecting plate of the present invention.

[0025] Figure 6 It is a cross-sectional view of the first detection device of the present invention.

[0026] Figure 7 It is an exploded diagram of the first detection device of the present invention.

[0027] Figure 8 It is a schematic diagram of the overall structure of the second detection device of the present invention.

[0028] Fig. 9 It is an exploded view of the second detection device of the present invention.

[0029] Figure numerals: housing 1; display screen 2; lens barrel 3; support ring 4; first lens 5; light collecting plate 6; second lens 7; reflective layer 8; mounting tube 9; lamp bead 10; third lens 11; partition 12; spectrometer 13; reflector 14; prism 15; motor 16; polygonal wheel 17; first gear 18; filter 19; mounting column 20; first sensor 21; slide plate 22; convex plate 23; spring 24; second gear 25; first slide rail 26; second slide rail 27; second sensor 28; pulley 29; slider 30; connecting column 31; crank 32; connecting rod 33. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention.

[0031] Hereinafter, a colorimeter for producing a TFT module according to an embodiment of the present invention will be described with reference to the accompanying drawings. Figure 1 - Fig. 9 As shown, the colorimeter for TFT module production includes a shell 1, a display screen 2 is provided on the shell 1, a partition 12 is provided inside the shell 1, so that the shell 1 is divided into two dark chambers, and an inclined spectroscope 13 and a reflector 14 are provided on the partition 12. The colorimeter for TFT module production also includes a light input device arranged in front of the shell 1, which is used to collect light emitted by the TFT module; a first detection device arranged at the front end of the shell 1, which can detect the light A by filtering method; and a second detection device arranged at the rear end of the shell 1, which can detect the light A by astigmatism method.

[0032] In a specific embodiment, the light A enters the housing 1 and is refracted and reflected by the inclined beam splitter 13 , so that the light A is divided into two beams of light A. The light A reflected by the beam splitter 13 is reflected again by the reflector 14 .

[0033] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the colorimeter for TFT module production includes a light input device, which includes a lens barrel 3, a first lens 5, a light collecting plate 6, a second lens 7, a mounting tube 9 and a lamp bead 10. The lens barrel 3 is fixed to the front end of the shell 1, and a support ring 4 made of transparent material is fixed to the outer side of the front end of the lens barrel 3. The first lens 5 is provided on the inner side of the front end of the lens barrel 3. The light collecting plate 6 is fixed to the middle part of the inner side of the lens barrel 3. The second lens 7 is fixed to the rear end of the inner side of the lens barrel 3. The mounting tube 9 is provided in the middle part of the lens barrel 3. The mounting tube 9 is located between the first lens 5 and the light collecting plate 6. The upper end of the mounting tube 9 is inclined, and a third lens 11 is provided on the upper end of the mounting tube 9. A lamp bead 10 is provided at the bottom of the mounting tube 9. The lamp bead 10 emits light through an external power supply. The light collecting plate 6 is funnel-shaped, and a circular through hole is provided at the bottom of the light collecting plate 6. A reflective layer 8 is provided on the inner side of the light collecting plate 6 and the inner side of the middle part of the lens barrel 3. The reflective layer 8 can refract the light A.

[0034] In a specific embodiment: when in use, the lens barrel 3 is pressed against the TFT module, and the positioning and pressing are ensured by the transparent support ring 4. The lamp bead 10 emits light through an external power supply, and the light A is emitted toward the front end of the lens barrel 3 through the inclined mounting tube 9 at the upper end, and the scattered light A is reflected out of the lens barrel 3 through the reflective layer 8 on the inner side of the middle part of the lens barrel 3, and then the light A is concentrated on the pressed TFT module through the first lens 5, so as to reflect the color on the TFT module, and the light A is concentrated into the lens barrel 3 through the first lens 5, and then the light A is formed into a light beam through the through hole of the light collecting plate 6, and then is concentrated again into the housing 1 through the second lens 7.

[0035] like Figure 2 , Figure 3 , Figure 6 and Figure 7As shown, the colorimeter for TFT module production includes a first detection device, which includes a motor 16, a polygonal wheel 17, a first gear 18, a filter 19, a mounting column 20, a first sensor 21, a slide plate 22 and a spring 24. The motor 16 is fixed on the partition 12, the mounting column 20 is fixed in the housing 1, the polygonal wheel 17 is rotatably arranged on the mounting column 20, the upper and lower ends of the polygonal wheel 17 are provided with disc-shaped shading plates, and the middle part of the polygonal wheel 17 is a polygonal structure, so that a dark room is formed in the polygonal wheel 17. A first gear 18 is fixed under the polygonal wheel 17, and the first gear 18 is meshed with the output shaft of the motor 16. A plurality of filters 19 are arranged on the polygonal wheel 17. A first sensor 21 is fixed on the mounting column 20, and the first sensor 21 corresponds to the direction of the light A. A slide plate 22 is slidably mounted on the first sensor 21, and a corresponding slide groove is arranged on the first sensor 21. A spring 24 is arranged between the slide plate 22 and the mounting column 20, and convex plates 23 are arranged at the four corners of the front end of the slide plate 22, and the front end of the convex plate 23 is rounded.

[0036] In a specific embodiment: the motor 16 is operated by an external power supply, thereby driving the first gear 18 and the polygonal wheel 17 to rotate. During the rotation, the polygonal wheel 17 pushes the slide plate 22 and compresses the spring 24, thereby changing the position of the filter 19. After the polygonal wheel 17 stops rotating, the spring 24 is reset, so that the slide plate 22 pushes the polygonal wheel 17 through the convex plate 23 at the front end, thereby ensuring that one side of the polygonal wheel 17 is perpendicular to the direction of the light A. The light A reflected from the inclined spectroscope 13 is filtered by the filter 19. The filtered light A is detected by the first sensor 21. By replacing the filter 19 multiple times and performing multiple corresponding detections, the color of the TFT module is detected.

[0037] like Figure 2 , Figure 3 , Figure 8 and Fig. 9As shown, the colorimeter for TFT module production includes a second detection device, which includes a prism 15, a second gear 25, a first slide rail 26, a second slide rail 27, a second sensor 28, a pulley 29, a slider 30, a connecting column 31, a crank 32 and a connecting rod 33. The prism 15 is fixed between the partition 12 and the housing 1, the second gear 25 is rotatably installed in the housing 1, the second gear 25 is meshed with the first gear 18, the crank 32 is fixed below the second gear 25, the first slide rail 26 and the second slide rail 27 are fixed to the bottom of the second gear 25, and the first slide rail 26 and the second slide rail 27 are fixed to the bottom of the second gear 25. The two slide rails 27 are fixed between the partition 12 and the shell 1. The first slide rail 26 and the second slide rail 27 are both concentric arcs corresponding to the position of the prism 15. A pulley 29 is rotatably provided at the front end of the second sensor 28, and a slider 30 is provided below the rear end of the second sensor 28. The front end of the second sensor 28 is slidably installed on the first slide rail 26, and the rear end of the second sensor 28 is installed on the second slide rail 27 through the slider 30. A connecting column 31 is provided below the slider 30, and the connecting column 31 is connected to the crank 32 through a connecting rod 33.

[0038] In a specific embodiment: light A is diverged through the prism 15, so that light A of various colors in the light A is separated into a fan shape, and the second gear 25 rotates by meshing with the first gear 18, thereby driving the crank 32 to rotate, and driving the connecting column 31 through the connecting rod 33, thereby driving the second sensor 28 to slide back and forth on the first slide rail 26 and the second slide rail 27, so that the second sensor 28 reciprocates to detect the light A diverged by the prism 15, thereby detecting the color of the TFT module.

[0039] Working principle: When in use, the lens barrel 3 is pressed against the TFT module, and the transparent support ring 4 is used to ensure positioning and tightness. The lamp bead 10 is powered by an external power supply to emit light, and the light A is emitted to the front end of the lens barrel 3 through the inclined mounting tube 9 at the upper end. The scattered light A is reflected out of the lens barrel 3 through the reflective layer 8 on the inner side of the middle of the lens barrel 3, and then the light A is concentrated on the TFT module pressed against it through the first lens 5, thereby reflecting the color on the TFT module, and the light A is concentrated into the lens barrel 3 through the first lens 5, and then through the focusing The through hole of the light plate 6 forms a light beam, and then is concentrated again into the housing 1 through the second lens 7. The light A enters the housing 1 and is refracted and reflected by the inclined beam splitter 13, so that the light A is divided into two beams of light A. Then the motor 16 works through an external power supply, thereby driving the first gear 18 and the polygonal wheel 17 to rotate. During the rotation, the polygonal wheel 17 pushes the slide plate 22 and compresses the spring 24, thereby changing the position of the filter 19. After the polygonal wheel 17 stops rotating, the spring 24 is reset, so that the slide plate 22 passes through the front end The convex plate 23 pushes the polygonal wheel 17, thereby ensuring that one side of the polygonal wheel 17 is perpendicular to the direction of the light A. The light A reflected from the inclined spectroscope 13 is filtered by the filter 19, and the filtered light A is detected by the first sensor 21. By replacing the filter 19 multiple times and performing multiple corresponding detections, the color of the TFT module is detected. Then, the light A reflected by the spectroscope 13 is reflected again by the reflector 14 into the prism 15, so that the light A is diverged through the prism 15, so that the light A of various colors in the light A is separated in a fan shape. The second gear 25 rotates by meshing with the first gear 18, thereby driving the crank 32 to rotate, and driving the connecting column 31 through the connecting rod 33, thereby driving the second sensor 28 to slide back and forth on the first slide rail 26 and the second slide rail 27, so that the second sensor 28 reciprocates to detect the light A diverged by the prism 15, thereby detecting the color of the TFT module, and the detection results of the first sensor 21 and the second sensor 28 are displayed on the display screen 2.

[0040] During detection, the second sensor 28 quickly detects the missing color in the detection light A, controls the rotation of the polygonal wheel 17, and prevents the polygonal wheel 17 from rotating to the filter 19 corresponding to the missing color, thereby reducing the invalid detection time of the polygonal wheel 17 and improving the detection efficiency of the colorimeter.

Claims

1. A colorimeter for TFT module production, the colorimeter comprising a housing (1), a display screen (2) being provided on the housing (1), a partition (12) being provided inside the housing (1), an inclined beam splitter (13) and a reflector (14) being provided on the partition (12), It is characterized in that The colorimeter for TFT module production further comprises a light input device arranged in front of the housing (1) for collecting light emitted by the TFT module; a first detection device arranged at the front end of the housing (1) for detecting the light by a filtering method; and a second detection device arranged at the rear end of the housing for detecting the light by a scattered light method. The first detection device comprises a motor (16), a polygonal wheel (17), a first gear (18), a filter (19), a mounting column (20), a first sensor (21), a slide plate (22) and a spring (24); the motor (16) is fixed on the partition (12); the mounting column (20) is fixed in the housing (1); the polygonal wheel (17) is rotatably mounted on the mounting column (20); a first gear (18) is fixed below the polygonal wheel (17); the first gear (18) is meshed with an output shaft of the motor (16); a plurality of filters (19) are arranged on the polygonal wheel (17); the first sensor (21) is fixed on the mounting column (20); the first sensor (21) corresponds to the direction of light; the slide plate (22) is slidably mounted on the first sensor (21); a corresponding slide groove is arranged on the first sensor (21); and a spring (24) is arranged between the slide plate (22) and the mounting column (20); The second detection device comprises a prism (15), a second gear (25), a first slide rail (26), a second slide rail (27), a second sensor (28), a crank (32) and a connecting rod (33), wherein the prism (15) is fixed between the partition (12) and the housing (1), the second gear (25) is rotatably mounted in the housing (1), the second gear (25) is meshed with the first gear (18), the crank (32) is fixed below the second gear (25), the first slide rail (26) and The second slide rail (27) is fixed between the partition (12) and the housing (1); a pulley (29) is rotatably provided at the front end of the second sensor (28) and a slider (30) is provided below the rear end of the second sensor (28); the front end of the second sensor (28) is slidably mounted on the first slide rail (26); the rear end of the second sensor (28) is mounted on the second slide rail (27) via the slider (30); a connecting column (31) is provided below the slider (30); and the connecting column (31) is connected to the crank (32) via a connecting rod (33).

2. A colorimeter for TFT module production as claimed in claim 1, It is characterized in that The light input device comprises a lens barrel (3), a first lens (5), a light collecting plate (6), a second lens (7), a mounting tube (9) and a lamp bead (10); the lens barrel (3) is fixed to the front end of the housing (1); a support ring (4) made of a transparent material is fixed to the outside of the front end of the lens barrel (3); the first lens (5) is arranged on the inside of the front end of the lens barrel (3); the light collecting plate (6) is fixed to the middle of the inside of the lens barrel (3); the second lens (7) is fixed to the rear end of the inside of the lens barrel (3); the mounting tube (9) is arranged in the middle of the lens barrel (3); the mounting tube (9) is located between the first lens (5) and the light collecting plate (6); a lamp bead (10) is arranged at the bottom of the mounting tube (9); the lamp bead (10) emits light by working through an external power supply.

3. A colorimeter for TFT module production as claimed in claim 2, It is characterized in that The light collecting plate (6) is funnel-shaped, a circular through hole is provided at the bottom of the light collecting plate (6), and a reflective layer (8) is provided on the inner side of the light collecting plate (6) and the inner side of the middle part of the lens barrel (3).

4. A colorimeter for TFT module production as claimed in claim 2, It is characterized in that The upper end of the mounting tube (9) is inclined, and a third lens (11) is provided on the upper end of the mounting tube (9).

5. A colorimeter for TFT module production as claimed in claim 4, It is characterized in that The four corners of the front end of the slide plate (22) are provided with convex plates (23), and the front end of the convex plates (23) is rounded.

6. A colorimeter for TFT module production as claimed in claim 5, It is characterized in that Disc-shaped shading plates are provided at the upper and lower ends of the polygonal wheel (17), and the middle part of the polygonal wheel (17) is a polygonal structure, so that a dark room is formed inside the polygonal wheel (17).

7. A colorimeter for TFT module production as claimed in claim 6, It is characterized in that The first slide rail (26) and the second slide rail (27) are both concentric arcs corresponding to the position of the prism (15).

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