CN107942545A - Transmission measurement instrument and test method in LCD display modules face - Google Patents
Transmission measurement instrument and test method in LCD display modules face Download PDFInfo
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- CN107942545A CN107942545A CN201711064870.5A CN201711064870A CN107942545A CN 107942545 A CN107942545 A CN 107942545A CN 201711064870 A CN201711064870 A CN 201711064870A CN 107942545 A CN107942545 A CN 107942545A
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- control
- lcd display
- display modules
- intelligent terminal
- optical sensor
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Classifications
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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
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
Abstract
The present invention discloses transmission measurement instrument in a kind of LCD display modules face, including：Housing, base, main platform, numerical control motion platform, mounting table, optical sensor component, power supply and control of intelligent terminal, mounting table is equipped with backlight, control of intelligent terminal controls numerical control motion platform and optical sensor component movement, product to be measured to be placed on the mounting table and test.The present invention can more accurately measure the light transmission rate of LCD display modules, so as to more accurately evaluate the brightness of backlight in LCD display modules, during test, optical sensor component can test out the brightness value of standard sources and LCD display modules entire surface to be measured automatically, so as to calculate the light transmission rate of LCD display module entire surfaces.The present invention can accurately test the LCD display modules with brightening piece, and can test the light transmission rate of LCD display modules in an inclined state using the backlight of the high brightness with prism structure.
Description
Technical field
The present invention relates to transmission measurement instrument and test method in optical tests field, more particularly to a kind of LCD modules face.
Background technology
Light transmission rate is one of important physical performance index of LCD display modules (liquid crystal display die set), it refers to incidence
Luminous flux is from during face to be illuminated or medium incident face leave to other one side, projecting the simultaneously radiation energy through object and all penetrate
The ratio between integrated radiant emittance on to object.Each LCD display modules production firm needs to carry out the light transmission rate of LCD display modules accurate
Really test, at utmost to evaluate the brightness of backlight in LCD display modules, accurate test result can be to avoid backlight
Source brightness is excessive, which to be caused to waste, and back light source brightness is too low causes customer complaint occur.
Traditional light transmission rate test equipment mainly has following a few point defects：
1st, traditional light transmission rate test equipment be mainly by the black light of the fixed frequency such as infrared light, ultraviolet light into
Row light transmission rate is tested, and the backlight in liquid crystal display die set uses visible ray, can not be accurate with black light test
Evaluate the brightness of backlight；
2nd, it is single-spot testing that traditional light transmission rate test equipment is most of, can not comprehensively test out LCD display modules
The light transmission rate of entire surface；
3rd, traditional light transmission rate test equipment can not test the LCD display modules with blast polaroid；
4th, traditional light transmission rate test equipment also can not accurately test depanning when LCD display module slant settings
The Luminance Distribution of group and the spatial variations of transmitance.
Therefore, the prior art is defective, it is necessary to improve.
The content of the invention
The purpose of the present invention is overcome the deficiencies of the prior art and provide transmission measurement instrument in a kind of LCD display modules face
And test method, with solve the problems, such as in background technology statement.
Technical scheme is as follows：Transmission measurement instrument in a kind of LCD display modules face, including：Housing, be located at institute
State the base in housing, the main platform being fixed on the base, the numerical control campaign being fixed on the main platform
Platform, the mounting table being fixed on the numerical control motion platform, the optical sensor group being fixed on the main platform
Part, the power supply and control of intelligent terminal being located on the main platform, the control of intelligent terminal and the numerical control motion platform
And the connection of optical sensor component, control of intelligent terminal control numerical control motion platform and optical sensor component movement.Production to be measured
Product are placed on the mounting table and are tested, and the light transmission rate measured is transferred to control of intelligent terminal by optical sensor component,
The mounting table is equipped with backlight, and light source is provided for test light transmission rate.
Further, the optical sensor component includes movement module and the installation being fixed on the main platform
The optical sensor being fixed on the movement module, the optical sensor are located at the top of the mounting table, the intelligence
The control terminal control movement module drive the optical sensor make up and down, move around, so as in test more
Comprehensively measure each point of LCD the display modules to be measured even light transmission rate of entire surface.
Further, the control of intelligent terminal includes：Motion control unit, data processing unit, display unit and
Network connection unit.
Further, the numerical control motion platform is 2D numerical control motion platforms, and the 2D numerical controls motion platform includes：Electricity
Machine, shaft and the support plate being fixed in the shaft, the mounting table are fixed in the support plate, intelligence
Motion control unit in control terminal controls the motor rotation, and motor drives shaft rotation, so as to drive the mounting table
Rotation.
Further, the numerical control motion platform is 3D numerical control motion platforms, and the 3D numerical controls motion platform includes：Electricity
Machine, shaft and the support plate being fixed in the shaft, the mounting table is fixed in the support plate, described
A U-shaped hole is provided with main platform, described shaft one end passes through the U-shaped hole, and one end that the shaft is connected with support plate is by transporting
The other end does oscillating motion, and motion control unit control motor rotation in the U-shaped hole around the shaft for dynamic control unit control
Turn, motor drives whole shaft to rotate.
Further, the backlight sends visible ray, its size is 1.4-15 inches, can show mould according to LCD to be measured
The size of group adjusts the size of backlight.The optical brightness of the backlight is 9000-10000cd/m2, its backlight spectra connects
Nearly illuminant-C.The backlight includes upper prismatic lens and lower prismatic lens, and the upper prismatic lens is equipped with some saws with lower prismatic lens
Tooth, to increase the brightness of backlight, so as to test the LCD display modules with brightening piece.
Further, the size of the shell is 1.5m × 1.5m × 1.5m.
The present invention also provides a kind of transmission measurement method in LCD display modules face, the test method includes following step
Suddenly：
Step 1：The backlight of the corresponding test of selection, backlight is fixed on mounting table, adjusts the defeated of backlight
Go out voltage and current, light the backlight on mounting table, open optical sensor, the optical sensor tests out backlight automatically
Whole light-emitting surface brightness value, retest 3-5 times, the back light source brightness value measured is transferred to intelligent control by optical sensor
Terminal processed, control of intelligent terminal are averaged all back light source brightness values；
Step 2：LCD display modules to be measured are placed on backlight, control of intelligent terminal adjusts numerical control motion platform, makes
The position of LCD display modules to be measured meets test request；
Step 3：LCD display modules to be measured are adjusted to white picture, optical sensor tests out LCD to be measured and shows mould automatically
The brightness value on group surface；
Step 4：The step 3 is repeated 3-5 times, optical sensor passes the LCD display modules brightness value to be measured measured
Control of intelligent terminal is given, control of intelligent terminal is averaged all LCD display modules brightness values to be measured, then according to calculating
Obtained back light source brightness average value and LCD display modules average brightness to be measured calculates light transmission rate, and exports correspondence
Transmitance distributed model figure；
Step 5：The automatic output document of final result is stored in the shared server of company by control of intelligent terminal
In file, data sharing is realized.
Further, the numerical control motion platform is 2D numerical control motion platforms, and the 2D numerical controls motion platform includes one
Shaft and the support plate being fixed in the shaft, the mounting table are fixed in the support plate, intelligence control
Motion control unit in terminal processed controls the shaft rotation, so as to drive the mounting table to rotate.
Further, the numerical control motion platform is 3D numerical control motion platforms, and the 3D numerical controls motion platform includes one
Shaft and the support plate being fixed in the shaft, the mounting table are fixed in the support plate, the master
A U-shaped hole is provided with platform, described shaft one end passes through the U-shaped hole, and one end that the shaft is connected with support plate is by moving
The other end does oscillating motion in the U-shaped hole around the shaft for control unit control, and motion control unit controls whole shaft
Rotate.
Further, the optical sensor component includes movement module and the installation being fixed on the main platform
The optical sensor being fixed on the movement module, the optical sensor are located at the top of the mounting table；In the step
Rapid 1 drives the optical inductor to make to move up and down, around with the control of intelligent terminal control movement module in step 3
To adjust the focal length of optical sensor.
Further, the backlight sends visible ray, and it is whole for intelligent control to adjust numerical control motion platform in the step 2
End control numerical control motion platform, the control of intelligent terminal respectively with numerical control motion platform, movement module and optical sensor component
Connection.
Using the above scheme, the present invention has the advantages that：
1st, the present invention tests the light transmission rate of LCD display modules using the backlight with visible ray, compared with traditional
True effect is more nearly with black light test, the light transmission rate of LCD display modules can be more accurately measured, so that more
Exactly at assessment in LCD display modules backlight brightness；
2nd, for the present invention during test, optical sensor component can be towards multidirectional movement, so that testing out LCD shows mould
The each point of the group even light transmission rate of entire surface；
3rd, the present invention can test the LCD display modules with brightening piece using the backlight with blast；
4th, this numerical control motion platform can realize in face rotation and inclined vertically, can arbitrarily adjust LCD to be measured
The angle of inclination of display module, so as to test LCD display modules light transmission rate at any angle；
5th, the present invention can realize data sharing, facilitate everybody to consult data.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Referring to Fig. 1, the present invention provides transmission measurement instrument in a kind of LCD display modules face, including：Housing 10, be located at
Base 20 in the housing 10, the main platform 30 being fixed on the base 20, be fixed on the main platform 30
On numerical control motion platform 40, be fixed on the numerical control motion platform 40 mounting table 50, be fixed on the master
Optical sensor component 60 on platform 30, the power supply 70 and control of intelligent terminal 80 being located on the main platform 30, in this reality
Apply in example, the control of intelligent terminal 80 is computer.The control of intelligent terminal 80 and the numerical control motion platform 40 and light
Learn inductive component 60 to connect, control of intelligent terminal 80 controls numerical control motion platform 40 and optical sensor component movement 60, described
The size of shell 10 is 1.5m × 1.5m × 1.5m.LCD display modules to be measured are placed on the mounting table 50 and are tested, light
Learn inductive component 60 and the light transmission rate measured is transferred to control of intelligent terminal 80.The control of intelligent terminal 80 includes：Movement
Control unit, data processing unit, display unit and network connection unit.
The optical sensor component 60 includes the movement module being fixed on the main platform 30 and installation is fixed
Optical sensor on the movement module, the optical sensor are located at the top of the mounting table 50, the intelligence control
Terminal 80 processed is controlled above and below the movement module, moved around, to adjust the focal length of optical sensor.The numerical control fortune
Moving platform 40 is 2D numerical control motion platforms, and the 2D numerical controls motion platform includes：Motor, shaft and it is fixed on described turn
Support plate on axis, the mounting table 50 are fixed in the support plate, and control of intelligent terminal 80 controls motor rotation, electricity
Machine drives the shaft rotation, so as to drive the mounting table 50 to rotate.
The mounting table 50 is equipped with backlight, and light source is provided for test light transmission rate.The backlight sends visible ray,
Its size is 1.4-15 inches, can adjust the size of backlight according to the size of LCD display modules to be measured.The backlight
Optical brightness is 9000-10000cd/m2, its backlight spectra is close to illuminant-C.The backlight includes upper prismatic lens and lower prism
Piece, the upper prismatic lens is equipped with some sawtooth with lower prismatic lens, to increase the brightness of backlight, so as to test with brightening piece
LCD display modules.
The present invention also provides another embodiment, and compared with above-described embodiment, the difference of the present embodiment is, the numerical control
Motion platform 40 is 3D numerical control motion platforms, and the 3D numerical controls motion platform includes：Motor, shaft and it is fixed on described
Support plate in shaft, the mounting table 50 are fixed in the support plate, and a U-shaped hole is provided with the main platform 30,
Described shaft one end passes through the U-shaped hole, and one end that the shaft is connected with support plate is controlled around the shaft by control of intelligent terminal
The other end does oscillating motion in the U-shaped hole, and control of intelligent terminal 80 controls motor rotation, and motor drives whole shaft
Rotate, tested so as to which LCD display modules to be measured are adjusted to each angle of inclination.
The present invention also provides a kind of transmission measurement method in LCD display modules face, the test method includes following step
Suddenly：
Step 1：The backlight of the corresponding test of selection, backlight is fixed on mounting table 50, adjusts backlight
Output voltage electric current, lights the backlight on mounting table 50, opens optical sensor, and the optical sensor tests out the back of the body automatically
The back light source brightness value measured is transferred to intelligence by the brightness value of the whole light-emitting surface of light source, retest 3-5 times, optical sensor
Energy control terminal 80, control of intelligent terminal 80 are averaged all back light source brightness values.
A tester is provided, which includes：Housing 10, the base 20 being located in the housing 10, installation are fixed
Main platform 30 on the base 20, the numerical control motion platform 40 being fixed on the main platform 30, be fixed on
Mounting table 50 on the numerical control motion platform 40, the optical sensor component 60 being fixed on the main platform 30, be located at
Power supply 70 and control of intelligent terminal 80 on the main platform 30, in the present embodiment, the control of intelligent terminal 80 are electricity
Brain, it includes：Motion control unit, data processing unit, display unit and network connection unit.The control of intelligent terminal
80 are connected with the numerical control motion platform 40 and optical sensor component 60.
The mounting table 50 is equipped with backlight, and light source is provided for test light transmission rate.The backlight sends visible ray,
Its size is 1.4-15 inches.The optical sensor component 60 include being fixed on movement module on the main platform 30 with
And it is fixed on the optical sensor on the movement module.
The numerical control motion platform 40 is 3D numerical control motion platforms, and the 3D numerical controls motion platform includes：Motor, shaft with
And the support plate in the shaft is fixed on, the mounting table 50 is fixed in the support plate, the main platform
A U-shaped hole is provided with 30, described shaft one end passes through the U-shaped hole, and one end that the shaft is connected with support plate is by intelligently controlling
The other end does oscillating motion to terminal control processed in the U-shaped hole around the shaft, and control of intelligent terminal 80 controls motor rotation,
Motor drives whole shaft to rotate, and is surveyed so as to which LCD display modules to be measured are adjusted to each angle of inclination
Examination.
In this step, control of intelligent terminal 80 controls the backlight lighted in mounting table 50 and opens optical sensor
Device, while the size of backlight can be adjusted according to the size of LCD display modules to be measured.80 controlled motion mould of control of intelligent terminal
For group towards up and down, around move, movement module drives optical sensor towards moving up and down, around to adjust optics sense
Answer the focal length of device.It is more accurate by being averaged the back light source brightness measured after 3-5 repeated measurement.
Step 2：LCD display modules to be measured are placed on backlight, control of intelligent terminal 80 adjusts numerical control motion platform
40, the position of LCD display modules to be measured is met test request, the LCD display modules of placement are tilted a certain angle for test,
Corresponding angle of inclination only need to be set on control of intelligent terminal 80.
In this step, control of intelligent terminal 80 controls the shaft rotation in numerical control motion platform 40, so as to drive placement
LCD display modules to be measured rotation on platform 50 so that the region of the LCD display modules to be measured to be tested and optical sensor pair
It is accurate.If testing the LCD display modules being tilted a certain angle, control of intelligent terminal 80 controls shaft swing so that mounting table
50 opposing optical inductors deviate certain angle.
Step 3：LCD display modules to be measured are adjusted to white picture, optical sensor tests out LCD to be measured and shows mould automatically
The brightness value on group surface.
In this step, 80 controlled motion module of control of intelligent terminal moves module band towards moving up and down, around
Dynamic optical sensor towards moving to adjust the focal length of optical sensor up and down, around.
Step 4：The step 3 is repeated 3-5 times, optical sensor passes the LCD display modules brightness value to be measured measured
Control of intelligent terminal 80 is given, control of intelligent terminal 80 is averaged all LCD display modules brightness values to be measured, then basis
The back light source brightness average value and LCD display modules average brightness to be measured being calculated calculate light transmission rate, and export
Corresponding transmitance distributed model figure.
In this step, the LCD display modules brightness to be measured measured by being averaged after 3-5 repeated measurement is more
To be accurate.Control of intelligent terminal 80 is put down according to the back light source brightness average value and LCD display modules brightness to be measured that are calculated
Mean value computation goes out light transmission rate (light transmission rate=LCD to be measured display modules brightness/back light source brightness).
Step 5：The automatic output document of final result is sent to display unit by control of intelligent terminal 80, and is stored in company
Shared server in file in, realize data sharing.
Before testing, it is necessary to check the basic operating status of power supply 70, control of intelligent terminal 80, and to the progress of backlight
Automatic testing calibration, to ensure backlight in desired brightness range, while check backlight surface whether have it is damaged and
Scratch, backlight should be replaced in time if any abnormal.
In conclusion the present invention has the advantages that：
1st, the present invention tests the light transmission rate of LCD display modules using the backlight with visible ray, compared with traditional
True effect is more nearly with black light test, the light transmission rate of LCD display modules can be more accurately measured, so that more
Exactly at assessment in LCD display modules backlight brightness；
2nd, for the present invention during test, optical sensor component can be towards multidirectional movement, so that testing out LCD shows mould
The each point of the group even light transmission rate of entire surface；
3rd, the present invention can test the LCD display modules with brightening piece using the backlight with blast；
4th, this numerical control motion platform can realize in face rotation and inclined vertically, can arbitrarily adjust LCD to be measured
The angle of inclination of display module, so as to test LCD display modules light transmission rate at any angle；
5th, the present invention can realize data sharing, facilitate everybody to consult data.
The foregoing is merely a prefered embodiment of the invention, is not intended to limit the invention, it is all the present invention spirit and
All any modification, equivalent and improvement made within principle etc., should all be included in the protection scope of the present invention.
Claims (10)
- A kind of 1. transmission measurement instrument in LCD display modules face, it is characterised in that including：Housing, the bottom being located in the housing Seat, the main platform being fixed on the base, the numerical control motion platform being fixed on the main platform, installation are fixed Mounting table on the numerical control motion platform, the optical sensor component being fixed on the main platform, be located at the master Power supply and control of intelligent terminal on platform, the control of intelligent terminal and the numerical control motion platform and optical sensor group Part connects, and control of intelligent terminal control numerical control motion platform and optical sensor component movement, product to be measured are placed on described put Put and tested on platform, the light transmission rate measured is transferred to control of intelligent terminal by optical sensor component, and the mounting table is equipped with the back of the body Light source.
- 2. transmission measurement instrument in LCD display modules face according to claim 1, it is characterised in that the optical sensor Component includes the movement module being fixed on the main platform and the optics sense being fixed on the movement module Device is answered, the optical sensor is located at the top of the mounting table, the control of intelligent terminal control movement module driving Above and below the optical inductor work, move around；The control of intelligent terminal includes：Motion control unit, data processing list Member, display unit and network connection unit.
- 3. transmission measurement instrument in LCD display modules face according to claim 1, it is characterised in that the numerical control campaign Platform is 2D numerical control motion platforms, and the 2D numerical controls motion platform includes a shaft and is fixed in the shaft Support plate, the mounting table are fixed in the support plate, and control of intelligent terminal controls the shaft rotation, so as to drive The mounting table rotation.
- 4. transmission measurement instrument in LCD display modules face according to claim 1, it is characterised in that the numerical control campaign Platform is 3D numerical control motion platforms, and the 3D numerical controls motion platform includes a shaft and is fixed in the shaft Support plate, the mounting table are fixed in the support plate, and a U-shaped hole, described shaft one end are provided with the main platform Through the U-shaped hole, one end that the shaft is connected with support plate by control of intelligent terminal control around the shaft the other end in the U Oscillating motion is done in type hole, and control of intelligent terminal controls whole shaft to rotate.
- 5. transmission measurement instrument in LCD display modules face according to claim 1 or 2, it is characterised in that the backlight Visible ray is sent, its size is 1.4-15 inches, its optical brightness is 9000-10000cd/m2, the backlight includes upper rib Eyeglass and lower prismatic lens, the upper prismatic lens are equipped with some sawtooth with lower prismatic lens；The size of the shell for 1.5m × 1.5m×1.5m；The control of intelligent terminal is computer.
- 6. a kind of transmission measurement method in LCD display modules face, it is characterised in that comprise the following steps：Step 1：The backlight of the corresponding test of selection, backlight is fixed on mounting table, adjusts the output electricity of backlight Current voltage, lights the backlight on mounting table, opens optical sensor, and the optical sensor tests out the whole of backlight automatically The back light source brightness value measured is transferred to intelligent control end by the brightness value of a light-emitting surface, retest 3-5 times, optical sensor End, control of intelligent terminal are averaged all back light source brightness values；Step 2：LCD display modules to be measured are placed on backlight, control of intelligent terminal adjusts numerical control motion platform, makes to be measured The position of LCD display modules meets test request；Step 3：LCD display modules to be measured are adjusted to white picture, optical sensor tests out LCD display modules table to be measured automatically The brightness value in face；Step 4：The step 3 is repeated 3-5 times, optical sensor sends the LCD display modules brightness value to be measured measured to Control of intelligent terminal, control of intelligent terminal are averaged all LCD display modules brightness values to be measured, and then basis is calculated Back light source brightness average value and LCD display modules average brightness to be measured calculate light transmission rate, and export corresponding Cross rate distributed model figure；Step 5：The automatic output document of final result is stored in the file in the shared server of company by control of intelligent terminal In folder, data sharing is realized.
- 7. transmission measurement method in LCD display modules face according to claim 6, it is characterised in that the numerical control fortune Moving platform is 2D numerical control motion platforms, and the 2D numerical controls motion platform includes a shaft and is fixed in the shaft Support plate, the mounting table is fixed in the support plate, and control of intelligent terminal controls the shaft rotation, so that band The dynamic mounting table rotation.
- 8. transmission measurement method in LCD display modules face according to claim 6, it is characterised in that the numerical control fortune Moving platform is 3D numerical control motion platforms, and the 3D numerical controls motion platform includes a shaft and is fixed in the shaft Support plate, the mounting table is fixed in the support plate, and a U-shaped hole, the shaft one are provided with the main platform End through the U-shaped hole, one end that the shaft is connected with support plate by control of intelligent terminal control around the shaft the other end in institute State and oscillating motion is done in U-shaped hole, and control of intelligent terminal controls whole shaft to rotate.
- 9. transmission measurement method in LCD display modules face according to claim 6, it is characterised in that the optics sense Component is answered to include the movement module being fixed on the main platform and the optics being fixed on the movement module Inductor, the optical sensor are located at the top of the mounting table；The control of intelligent terminal control in the step 1 and step 3 The movement module is made to drive above and below the optical inductor work, move to adjust the focal length of optical sensor around.
- 10. transmission measurement method in LCD display modules face according to claim 6, it is characterised in that the backlight Visible ray is sent, adjust numerical control motion platform in the step 2 controls numerical control motion platform, the intelligence for control of intelligent terminal Control terminal is connected with numerical control motion platform, movement module and optical sensor component respectively.
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| CN201711064870.5A CN107942545A (en) | 2017-11-02 | 2017-11-02 | Transmission measurement instrument and test method in LCD display modules face |
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| CN201711064870.5A CN107942545A (en) | 2017-11-02 | 2017-11-02 | Transmission measurement instrument and test method in LCD display modules face |
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| CN111897154B (en) * | 2020-08-21 | 2023-08-18 | 京东方科技集团股份有限公司 | Transmittance test fixture and test method |
| CN114486205A (en) * | 2022-02-21 | 2022-05-13 | 上海天马微电子有限公司 | Optical testing device and method |
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