KR20170004566A - Apparatus for inspection of back-light unit - Google Patents

Apparatus for inspection of back-light unit Download PDF

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Publication number
KR20170004566A
KR20170004566A KR1020150095096A KR20150095096A KR20170004566A KR 20170004566 A KR20170004566 A KR 20170004566A KR 1020150095096 A KR1020150095096 A KR 1020150095096A KR 20150095096 A KR20150095096 A KR 20150095096A KR 20170004566 A KR20170004566 A KR 20170004566A
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KR
South Korea
Prior art keywords
unit
photographing
backlight unit
backlight
angle
Prior art date
Application number
KR1020150095096A
Other languages
Korean (ko)
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KR101720009B1 (en
Inventor
손영곤
Original Assignee
(주)소닉스
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Priority to KR1020150095096A priority Critical patent/KR101720009B1/en
Publication of KR20170004566A publication Critical patent/KR20170004566A/en
Application granted granted Critical
Publication of KR101720009B1 publication Critical patent/KR101720009B1/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1306—Details
    • G02F1/1309—Repairing; Testing

Abstract

The present invention relates to a backlight unit inspecting apparatus, and more particularly, to a backlight unit inspecting apparatus comprising: a transferring unit on which a backlight unit is mounted, supplying power to the backlight unit and transferring the backlight unit supplied with power; A luminance measurement unit for measuring a luminance of the backlight unit transferred through the transfer unit; A surface photographing unit disposed at a rear stage of the luminance measuring unit and photographing an upper surface of the backlight unit transferred through the transfer unit in a vertical direction, a longitudinal direction and a width direction; A discharge unit for picking up a backlight unit which has been photographed through the surface photographing unit and discharging the backlight unit from the transfer unit; And a control judging unit for controlling the transfer unit, the luminance measuring unit, the surface photographing unit and the discharging unit, and judging the part of the backlight unit according to the luminance measurement result of the luminance measurement unit and the photographed image photographed from the surface photographing unit. ; And the control determination unit may match and store the result of the positive determination of the backlight unit and the image photographed from the surface photographing unit.
According to the present invention, the plurality of support rollers of the first and second angle adjusting portions firmly support the bracket when the bracket rotates along the rail guide, thereby suppressing the shaking that may occur in the camera, It is possible to obtain a clear image and to increase the reliability of the backlight unit judging test through the image, and to check the backlight unit surface in the vertical direction, The arrangement of the vertical photographing section, the first angle-adjusting photographing section, and the second angle-adjusting photographing section for photographing in the longitudinal direction and the width direction is arranged so as to simultaneously photograph the surface of the backlight unit transferred to the photographing region via the transfer unit, It is possible to shorten the inspection time of the backlight unit consumed in the backlight unit.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a backlight unit inspection apparatus,

The present invention relates to a backlight unit inspection apparatus.

BACKGROUND ART A liquid crystal display device for displaying a screen in various electronic apparatuses uses a backlight unit as a light source for emitting light in the rear direction.

The backlight unit has a structure in which a reflective film, a light guide plate, a diffusion film, a prism film, a light shielding film, and a protective film are stacked on a mold frame, and LED light is sequentially irradiated onto various films and light guide plates, And a structure in which light diffused through the film supplies illumination to the liquid crystal display device.

Such a backlight unit diffuses a plurality of sequentially laminated films of light generated from an LED, and therefore, even if a film abnormality such as a foreign substance or a sticking in the film stacking process, an LED abnormality, The quality of the backlight unit can be deteriorated, and development of an inspection apparatus for inspecting the backlight unit has been demanded.

In order to solve such a problem, Korean Unexamined Patent Application Publication No. 2007-0107537 (hereinafter referred to as " prior art ") supplies power to a backlight unit, checks the backlight unit supplied with power, A backlight unit inspection device has been proposed.

However, in the prior art, since the inspector directly observes the light generated from the backlight unit directly by the naked eye to judge the abnormality of the backlight unit, the worker's fatigue of the inspector can be rapidly increased and the means for storing the inspection result is not provided , It takes a lot of time to reconfirm the parts of the backlight unit for which inspection has been completed, a means for adjusting the surface inspection angle so as to accurately check whether the surface is abnormal and a shake of inspection means And means for suppressing an inspection error due to tremors are not provided, and it is difficult to judge both parts of the backlight unit.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a backlight unit inspection apparatus capable of adjusting an inspection angle of a surface and minimizing a cause of an error of an inspection means when adjusting an inspection angle.

A backlight unit inspecting apparatus for achieving this object comprises: a transferring unit for receiving a backlight unit, supplying power to the backlight unit, and transferring the backlight unit supplied with power; A luminance measurement unit for measuring a luminance of the backlight unit transferred through the transfer unit; A surface photographing unit disposed at a rear stage of the luminance measuring unit and photographing an upper surface of the backlight unit transferred through the transfer unit in a vertical direction, a longitudinal direction and a width direction; A discharge unit for picking up a backlight unit which has been photographed through the surface photographing unit and discharging the backlight unit from the transfer unit; And a control judging unit for controlling the transfer unit, the luminance measuring unit, the surface photographing unit and the discharging unit, and judging the part of the backlight unit according to the luminance measurement result of the luminance measurement unit and the photographed image photographed from the surface photographing unit. ; And the control determination unit may match and store the result of the positive determination of the backlight unit and the image photographed from the surface photographing unit.

Here, the transfer unit may include a seating part on which a plurality of backlight units are mounted, the part being provided in a disc shape; A driving unit for rotationally driving the seat portion; And a power supply unit for supplying power to the backlight unit that is seated in the seating unit.

The surface photographing unit may include a vertical photographing unit positioned vertically above the backlight unit transferred through the transfer unit and photographing an upper surface of the backlight unit in a vertical direction; A first angle adjustment photographing unit for photographing the upper surface of the backlight unit in the longitudinal direction by adjusting a photographing angle while maintaining the same distance as the backlight unit; A second angle adjustment photographing unit for photographing the upper surface of the backlight unit in the width direction while maintaining the same distance as the backlight unit and adjusting the photographing angle; And a combining unit for fixing the vertical photographing unit, the first angle-adjusting photographing unit and the second angle-adjusting photographing unit, wherein the first angle-adjusting photographing unit and the second angle- The upper surface of the backlight unit can be simultaneously photographed in the longitudinal direction and the width direction at the same point as the position where the upper surface of the backlight unit moved by the camera is photographed.

The first angle adjustment photographing unit may include a first camera that photographs an upper surface of the backlight unit transferred through the transfer unit in the longitudinal direction of the backlight unit; And a first angle adjusting part coupled to the first camera and moving the first camera to adjust an angle of view of the backlight unit.

Here, the first angle adjusting portion may include: a first bracket to which the first camera is coupled; A first guide arm connected to one side of the first bracket and connected to the other side of the first bracket to guide rotational movement of the first bracket; A first rail guide coupled to the coupling portion and provided in a shape corresponding to a movement locus of the first bracket; At least two first support rollers coupled to the first bracket and contacting the upper surface and the lower surface of the first rail guide to support rotational movement of the first bracket; And a first driving unit for moving the first bracket along the first rail guide, wherein the first angle adjusting unit moves the first bracket along the first rail guide, The angle of the first camera can be adjusted while the distance between the backlight unit and the backlight unit transferred through the transfer unit is kept constant.

The second angular adjustment photographing unit may include a second camera for photographing the upper surface of the backlight unit transferred through the transfer unit in the width direction of the backlight unit; And a second angular adjustment part coupled to the second camera and moving the second camera to adjust an angle of the backlight unit, wherein the second angular adjustment photographing part comprises: 1, the second camera is moved in a direction perpendicular to the direction in which the camera is moved to adjust the shooting angle.

In addition, the second angle adjusting portion may include a second bracket to which the second camera is coupled; A second guide arm connected to the second bracket at one side and connected to the coupling portion at the other side for guiding rotational movement of the second bracket; A second rail guide coupled to the coupling portion and provided in a shape corresponding to a movement locus of the second bracket; At least two second support rollers coupled to the second bracket and contacting the top and bottom surfaces of the second rail guide to support rotational movement of the second bracket; And a second driving unit for moving the second bracket along the second rail guide, wherein the second angle adjusting unit moves the second bracket along the second rail guide, The angle of the second camera can be adjusted while maintaining a constant distance between the backlight unit and the backlight unit transferred through the transfer unit.

As described above, the present invention has the following effects.

First, the plurality of support rollers of the first and second angle adjusting portions firmly support the bracket when the bracket rotates along the rail guide, thereby suppressing the shaking that may occur in the camera, It is possible to obtain a clear image and to increase the reliability of the backlight unit judging test through the image.

Second, in order to confirm the surface of the backlight unit, the arrangement of the vertical photographing unit, the first angle-adjusting photographing unit, and the second angle-photographing photographing unit for photographing in the vertical direction, the longitudinal direction and the width direction, It is possible to shorten the inspection time of the backlight unit consumed in the surface photographing.

1 is a block diagram schematically showing a voice input / output device according to an embodiment of the present invention.
2 shows a transfer unit according to an embodiment of the present invention.
3 schematically shows a vertical photographing unit, a first camera and a second camera of the surface photographing unit according to an embodiment of the present invention.
4 shows a first angle-adjusting photographing unit of a surface photographing unit according to an embodiment of the present invention.
FIG. 5 illustrates adjustment of the angle of view of the first angular adjustment photographing unit according to an embodiment of the present invention.

The preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings, in which the technical parts already known will be omitted or compressed for simplicity of explanation.

1 illustrates a backlight unit inspection apparatus according to an embodiment of the present invention.

The apparatus for inspecting a backlight unit B according to an embodiment of the present invention inspects both sides of a backlight unit B through a photographed image of a conical surface and a light emitting surface of a backlight unit B supplied with power, A transfer unit 1100, a luminance measuring unit 1200, a surface photographing unit 1300, a discharging unit 1400 and a control judging unit 1500.

2 shows a transfer unit of a backlight unit inspection apparatus according to an embodiment of the present invention.

The transfer unit 1100 can receive the backlight unit B and supply power to the backlight unit B and can include the seat part 1120, the driving part 1140 and the power supply part 1160 have.

The seat portion 1120 is provided in a disc shape, and a plurality of backlight units B can be seated.

A plurality of backlight units B can be seated along the circumference of the mounting part 1120. When the backlight unit B is axially rotated with respect to the center point of the disc shape, .

At this time, the seating part 1120 may be provided with the same seating groove (not shown) as the backlight unit B, and the backlight unit B may be seated on the seating part 1120 such that the light- .

The driving unit 1140 can rotate and drive the seating unit 1120.

Here, the driving unit 1140 is axially coupled to the center of the disk-shaped seating unit 1120, so that the seating unit 1120 can be rotated.

At this time, the seating part 1120 and the driving part 1140 may be provided in the form of an index table in which an object to be inspected, which is placed at regular intervals along the circumference on the upper surface of the circular plate, have.

The power supply unit 1160 can supply power to the backlight unit B that is seated in the seating unit 1120.

The power supply unit 1160 contacts the flexible circuit board FPCB of the backlight unit B and supplies power to the backlight unit B to illuminate the light of the LEDs of the backlight unit B, (Light emitting surface) of the light emitting element can be transferred to the light emitting body.

The luminance measurement unit 1200 can measure the luminance of the light emitting surface of the backlight unit B conveyed through the transfer unit 1100. [

At this time, the luminance measurement unit 1200 measures the luminance of the backlight unit B and provides the measurement result to the control determination unit 1500. [

FIG. 3 is a schematic view of a vertical photographing unit, a first camera and a second camera of the surface photographing unit according to an embodiment of the present invention, and FIG. 4 is a block diagram of a first FIG. 5 illustrates adjustment of the angle of view of the first angle-adjusting photographing unit according to an embodiment of the present invention.

The surface photographing unit 1300 can photograph the upper surface of the backlight unit B whose brightness is measured by the brightness measuring unit 1200 in the vertical direction, the longitudinal direction and the width direction of the backlight unit B, A first angle adjusting photographing unit 1340, a second angle adjusting photographing unit 1360, and a combining unit 1380. The first angle adjusting photographing unit 1320 may include a first angle adjusting photographing unit 1320, a first angle adjusting photographing unit 1340,

The vertical photographing unit 1320 can be disposed at an upper portion of a position in the conveying direction of the backlight unit B for which the luminance measurement is completed to photograph the surface of the backlight unit B supplied with power in the vertical direction.

At this time, the vertical photographing unit 1320 provides the surface judgment image of the backlight unit B photographed in the vertical direction to the control judging unit 1500, (B), and scratches, soot, foreign matter, and the like on the surface of the laminated film.

The first angular adjustment photographing unit 1340 is disposed below the vertical photographing unit 1320 to photograph the surface of the backlight unit B in the longitudinal direction by adjusting the photographing angle. 1 angular adjustment portion 1344, as shown in FIG.

The first camera 1342 can photograph the backlight unit B and provide the photographed image to the control determination unit 1600. [

The first angle adjustment portion 1344 can adjust the angle of the first camera 1342 and includes a first bracket 1344A, a first guide arm 1344B, a first rail guide 1344C, A first driver 1344D and a first driver 1344E.

The first bracket 1344A is coupled to the first camera 1342 and may connect the first camera 1342 to the first guide arm 1344B described later.

The first guide arm 1344B can guide the rotational movement of the first camera 1342. [

One side of the first guide arm 1344B is coupled to the first bracket 1344A and the other side of the first guide arm 1344B is fixed to the coupling portion 1380 so as to be rotatable, (1342).

At this time, the first guide arm 1344B is connected to the engaging portion 1380 at the same height as the backlight unit B conveyed by the conveyance unit 1100, and the first camera 1342 is connected to the backlight It is possible to change the shooting angle of the body maintaining a certain distance from the unit B. [

The first rail guide 1344C may be provided in a shape corresponding to the rotational movement locus of the first bracket 1344A guided by the first guide arm 1344B.

In addition, the first rail guide 1344C can adjust the rotational movement of the first bracket 1344A by a first driving unit 1344E and a first supporting roller 1344D, which will be described later.

Here, the first rail guide 1344C slides in contact with and supports the first support roller 1344D through the arc shape, so that the first rail guide 1344C can slide in the first bracket 1344A during the rotational movement of the first bracket 1344A .

The first rail guide 1344C is formed with teeth of the same shape as the teeth formed on the first driving portion 1344E along one side so that the first bracket 1344A can be moved through the first driving portion 1344E .

The first camera 1342 moves the first bracket 1344A on the first rail guide 1344C by the rotation of the first driving unit 1344E so that the first camera 1342 moves to the first camera 1344, The photographing angle of the first camera 1342 can be adjusted and preferably the photographing angle of the first camera 1342 can be adjusted within a range of 20 to 80 degrees with respect to the surface of the backlight unit B. [

 A plurality of first support rollers 1344D may be provided on the first bracket 1344A and may contact the upper and lower surfaces of the first rail guide 1344C formed with the curved portion so that the rotation movement of the first bracket 1344A .

The first driving part 1344E is fixed to the first bracket 1344A and rotationally drives the teeth corresponding to the teeth formed along one side of the first rail guide 1344C to rotate the first bracket 1344A in accordance with the rotation direction of the teeth. 1344A.

That is, the first angle adjusting radiographing section 1340 moves the first bracket 1344A coupled to the first guide arm 1344B along the first rail guide 1344C by driving the first driving section 1344E As the first support roller 1344D supports the first rail guide 1344C, it is possible to adjust the shooting angle of the first camera 1342, and the shake generated when the shooting angle is adjusted can be suppressed .

At this time, the first angular adjustment photographing section 1340 is configured to position the surface of the backlight unit B in the longitudinal direction (vertical direction) in the same manner as the photographing time point of the vertical photographing section 1320 photographing the surface of the backlight unit B in the vertical direction So that it can be photographed.

At this time, the first angular adjustment photographing unit 1340 can photograph the surface of the backlight unit B by fixing the first camera 1342 at a specific angle to be photographed, 1342 may be changed to an angle of 20 DEG to 80 DEG, and the surface of the backlight unit B may be photographed.

The second angular adjustment photographing section 1360 is disposed at a lower portion of the vertical photographing section 1320 and is disposed on the same vertical line side as the first angle adjusting photographing section 1340, The second guide arm 1364B, the second rail guide 1364C, the second support roller 1364D, and the second drive unit 1364E can be moved in the width direction, and the second bracket 1364A, the second guide arm 1364B, the second rail guide 1364C, .

At this time, the second angular adjustment photographing unit 1360 is coupled to the side of the first angle adjustment photographing unit 1340 by the engaging unit 1380, and the second angle adjusting photographing unit 1360 is connected to the second camera 1362 The first camera 1342 and the second camera 1362 are respectively coupled to the backlight unit B in the longitudinal direction and in the width direction And the configuration of the second angular adjustment photographing section 1360 is the same as that of the first angle adjustment photographing section 1340 except that the arrangement thereof is different. .

The combining unit 1380 can fix the vertical photographing unit 1320, the first angle adjusting photographing unit 1340 and the second angle adjusting photographing unit 1360, and the first angle adjusting photographing unit 1340 and the second angle adjusting photographing unit 1360 The first angle adjustment photographing part 1340 and the second angle photographing part 1360 are arranged such that each adjustment photographing part 1360 can photograph the surface of the backlight unit B located in the photographing area of the vertical photographing part 1320 in the longitudinal direction and the width direction, The adjustment photographing unit 1360 may be positioned below the vertical photographing unit 1320 and may be fixed such that the first angle adjustment photographing unit 1340 and the second angle photographing unit 1360 are arranged orthogonally on the same vertical line.

The discharging unit 1400 can transfer the luminance measuring unit 1200 and the surface photographing unit 1300 to the back-end process after the luminance inspection and photographing are completed.

The control judging unit 1500 controls the transfer unit 1100, the luminance measuring unit 1200, the surface photographing unit 1300 and the discharging unit 1400 so that the luminance measurement result of the luminance measuring unit 1200, (B) according to the photographed image photographed from the backlight unit (1300).

Here, the control determination unit 1500 measures the luminance from the upper surface (light emitting surface) of the backlight unit B, which is supplied with power through the transfer unit 1100 and is transported, , It is determined that the backlight unit (B) is defective.

If the brightness is not measured, it is checked whether the power supply unit 1600 is abnormal. If there is no abnormality in the power supply unit 1600, the operation of the brightness measurement unit 1200 or the failure of the backlight unit B , Stops the operation of the transfer unit 1100, and generates an alarm according to the occurrence of an abnormality.

The control determination unit 1500 also controls the transfer unit 1100 to move the backlight unit B whose luminance is measured to the photographing area of the surface photographing unit 1300. [

Thereafter, the control determination unit 1500 controls the vertical photographing unit 1320, the first angle adjusting photographing unit 1340, and the second angle adjusting photographing unit 1360 to detect the backlight unit B And receives the vertical image of the backlight unit B from the first angular adjustment photographing unit 1340 and the second angle adjustment photographing unit 1360 in the longitudinal direction and the width direction at a fixed photographing angle Or an image photographed in the longitudinal direction and the width direction of the backlight unit B surface is received while the photographing angle is changed within a predetermined photographing angle range.

The control determination unit 1500 determines whether the backlight unit B is stacked or not through the images received from the vertical photographing unit 1320, the first angle adjusting photographing unit 1340 and the second angle adjusting photographing unit 1360 It is possible to judge whether or not the backlight unit B is positive by checking the lamination error of the film and scratches, soot, foreign substances, etc. on the surface.

Here, the control determination unit 1500 receives the image received from the vertical photographing unit 1320, the first angle adjusting photographing unit 1340, and the second angle adjusting photographing unit 1360 through an image processing technique It is possible to judge whether the backlight unit B is positive or negative.

Thereafter, the control determination unit 1500 determines whether the backlight unit B is positive or negative based on the luminance measurement result of the luminance inspection unit 1200 and the photographed image photographed from the surface photographing unit 1300, The brightness measurement value, and the image taken through the surface photographing unit 1300 can be matched and stored.

The control determination unit 1500 also controls the transfer unit 1100 to transfer the inspected backlight unit B to the position where the discharge unit 1400 is disposed and to transfer the backlight unit B to the backlight unit 1400 through the discharge unit 1400. [ B) to the downstream process.

At this time, the control determining unit 1500 may control the discharging unit 1400 to designate the discharging point so that the discharging unit 1400 is discharged in a different back end process, in accordance with the judgment result of the backlight unit B.

As a result, in the present invention, the plurality of support rollers of the first and second angle adjusting portions firmly support the bracket when the bracket rotates along the rail guide, thereby suppressing the shaking that may occur in the camera, So that a clear image can be obtained and the reliability of the backlight unit judging test through the image can be improved. In order to confirm the backlight unit surface, The arrangement of the vertical angle photographing unit, the first angle-adjusting photographing unit, and the second angle-adjusting photographing unit for photographing in the longitudinal direction and the width direction is arranged to simultaneously photograph the surface of the backlight unit transferred to the photographing area through the transfer unit, A backlight unit inspection apparatus capable of shortening a backlight unit inspection time consumed in photographing is provided.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. And the scope of the present invention should be understood as the following claims and their equivalents.

1000: backlight unit inspection device
1100:
1120:
1140:
1160: Power supply
1200: luminance measurement unit
1300: Surface photographing unit
1320:
1340: First angle adjustment photographing section
1342: First camera
1344: first angular adjustment portion
1344A: first bracket
1344B: first guide arm
1344C: 1st rail guide
1344D: first support roller
1344E:
1360: Second angle adjustment photographing section
1362:
1364: second angle adjusting portion
1364A: second bracket
1364B: second guide arm
1364C: Second rail guide
1364D: second support roller
1364E:
1380:
1400: exhaust unit
1500: Control determination unit
B: Backlight unit

Claims (7)

A transfer unit on which a backlight unit is mounted, supplying power to the backlight unit, and transferring the backlight unit supplied with power;
A luminance measurement unit for measuring a luminance of the backlight unit transferred through the transfer unit;
A surface photographing unit disposed at a rear stage of the luminance measuring unit and photographing an upper surface of the backlight unit transferred through the transfer unit in a vertical direction, a longitudinal direction and a width direction;
A discharge unit for picking up a backlight unit which has been photographed through the surface photographing unit and discharging the backlight unit from the transfer unit; And
A control judging unit for controlling the transfer unit, the luminance measuring unit, the surface photographing unit and the discharging unit, and judging the part of the backlight unit according to the luminance measurement result of the luminance measurement unit and the photographed image photographed from the surface photographing unit; / RTI >
Characterized in that the control determination unit stores matching results of the backlight unit and the photographed image from the surface photographing unit
Backlight unit inspection device.
The method according to claim 1,
The transfer unit
A mounting portion on which a plurality of backlight units are mounted, the mounting portion being provided in a disc shape;
A driving unit for rotationally driving the seat portion; And
And a power supply unit for supplying power to the backlight unit that is seated in the seating unit
Backlight unit inspection device.
The method according to claim 1,
The surface photographing unit includes:
A vertical photographing unit positioned vertically above the backlight unit transferred through the transfer unit and photographing the upper surface of the backlight unit in a vertical direction;
A first angle adjustment photographing unit for photographing the upper surface of the backlight unit in the longitudinal direction by adjusting a photographing angle while maintaining the same distance as the backlight unit;
A second angle adjustment photographing unit for photographing the upper surface of the backlight unit in the width direction while maintaining the same distance as the backlight unit and adjusting the photographing angle; And
And an engaging part fixing the vertical photographing part, the first angle-adjusting photographing part and the second angle-adjusting photographing part,
Wherein the first angular adjustment photographing unit and the second angle adjusting photographing unit are arranged such that the upper surface of the backlight unit is inclined in the longitudinal direction and the width direction in the same position as the position at which the vertical photographing unit photographs the upper surface of the backlight unit moved by the transfer unit Is taken at the same time
Backlight unit inspection device.
The method of claim 3,
Wherein the first angular adjustment photographing unit comprises:
A first camera for photographing the upper surface of the backlight unit transferred through the transfer unit in the longitudinal direction of the backlight unit; And
And a first angle adjusting part coupled to the first camera and moving the first camera to adjust an angle of view of the backlight unit
Backlight unit inspection device.
5. The method of claim 4,
Wherein the first angle adjusting portion comprises:
A first bracket to which the first camera is coupled;
A first guide arm connected to one side of the first bracket and connected to the other side of the first bracket to guide rotational movement of the first bracket;
A first rail guide coupled to the coupling portion and provided in a shape corresponding to a movement locus of the first bracket;
At least two first support rollers coupled to the first bracket and contacting the upper surface and the lower surface of the first rail guide to support rotational movement of the first bracket; And
And a first driver for moving the first bracket along the first rail guide,
Wherein the first angle adjusting portion moves the first bracket along the first rail guide so as to keep the distance between the first camera and the backlight unit transferred through the transfer unit constant, And adjusting a photographing angle of the camera
Backlight unit inspection device.
5. The method of claim 4,
Wherein the second angular adjustment photographing unit comprises:
A second camera for photographing the upper surface of the backlight unit transferred through the transfer unit in the width direction of the backlight unit; And
And a second angle adjusting unit coupled to the second camera and moving the second camera to adjust an angle of view of the backlight unit,
Wherein the second angle adjustment photographing unit adjusts the photographing angle by moving the second camera in a direction perpendicular to a direction in which the first angle adjusting unit moves the first camera
Backlight unit inspection device.
The method according to claim 6,
Wherein the second angle adjusting portion comprises:
A second bracket to which the second camera is coupled;
A second guide arm connected to the second bracket at one side and connected to the coupling portion at the other side for guiding rotational movement of the second bracket;
A second rail guide coupled to the coupling portion and provided in a shape corresponding to a movement locus of the second bracket;
At least two second support rollers coupled to the second bracket and contacting the top and bottom surfaces of the second rail guide to support rotational movement of the second bracket; And
And a second driving unit for moving the second bracket along the second rail guide,
The second angle control portion moves the second bracket along the second rail guide so as to keep the distance between the second camera and the backlight unit transferred through the transfer unit constant, And adjusting a photographing angle of the camera
Backlight unit inspection device.
KR1020150095096A 2015-07-03 2015-07-03 Apparatus for inspection of back-light unit KR101720009B1 (en)

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Application Number Priority Date Filing Date Title
KR1020150095096A KR101720009B1 (en) 2015-07-03 2015-07-03 Apparatus for inspection of back-light unit

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Application Number Priority Date Filing Date Title
KR1020150095096A KR101720009B1 (en) 2015-07-03 2015-07-03 Apparatus for inspection of back-light unit

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108593674A (en) * 2018-05-09 2018-09-28 合肥泰沃达智能装备有限公司 A kind of one camera light guide plate detection jig
CN110657946A (en) * 2018-06-29 2020-01-07 上海微电子装备（集团）股份有限公司 Screen defect detection system, screen detection line and screen defect detection method
KR102262532B1 (en) * 2021-02-05 2021-06-07 박덕식 Device for inspection of lower equipment of railway vehicles
CN113942836A (en) * 2021-11-09 2022-01-18 深圳市腾盛自动化设备有限公司 High-efficiency automatic Demura equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060112414A (en) * 2005-04-27 2006-11-01 (주)소닉스 Checkup apparatus for back light unit
KR100662209B1 (en) * 2005-11-10 2006-12-28 태산엘시디 주식회사 Vision and luminance detection system for back light unit
KR20130143284A (en) * 2012-06-21 2013-12-31 주식회사 이라이콤 Back light unit inspecting apparatus and method
KR101499462B1 (en) * 2013-12-02 2015-03-06 주식회사 이엔지코리아 Small vision inspection device of the backlight unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060112414A (en) * 2005-04-27 2006-11-01 (주)소닉스 Checkup apparatus for back light unit
KR100662209B1 (en) * 2005-11-10 2006-12-28 태산엘시디 주식회사 Vision and luminance detection system for back light unit
KR20130143284A (en) * 2012-06-21 2013-12-31 주식회사 이라이콤 Back light unit inspecting apparatus and method
KR101499462B1 (en) * 2013-12-02 2015-03-06 주식회사 이엔지코리아 Small vision inspection device of the backlight unit

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108593674A (en) * 2018-05-09 2018-09-28 合肥泰沃达智能装备有限公司 A kind of one camera light guide plate detection jig
CN110657946A (en) * 2018-06-29 2020-01-07 上海微电子装备（集团）股份有限公司 Screen defect detection system, screen detection line and screen defect detection method
CN110657946B (en) * 2018-06-29 2021-09-21 上海微电子装备（集团）股份有限公司 Screen defect detection system, screen detection line and screen defect detection method
KR102262532B1 (en) * 2021-02-05 2021-06-07 박덕식 Device for inspection of lower equipment of railway vehicles
CN113942836A (en) * 2021-11-09 2022-01-18 深圳市腾盛自动化设备有限公司 High-efficiency automatic Demura equipment
CN113942836B (en) * 2021-11-09 2022-11-11 深圳市腾盛自动化设备有限公司 High-efficiency automatic Demura equipment

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