CN208704880U - A kind of brightness acquisition device and test macro - Google Patents
A kind of brightness acquisition device and test macro Download PDFInfo
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- CN208704880U CN208704880U CN201821670778.3U CN201821670778U CN208704880U CN 208704880 U CN208704880 U CN 208704880U CN 201821670778 U CN201821670778 U CN 201821670778U CN 208704880 U CN208704880 U CN 208704880U
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Abstract
The utility model provides a kind of brightness acquisition device and test macro, is related to luminance test technical field.The brightness acquisition device is used to acquire the brightness value of display, and brightness acquisition device includes multiple brightness acquisition units and selecting unit, and multiple brightness acquisition units are electrically connected with selecting unit, and each brightness acquisition unit corresponds to a measured zone on display；The brightness value that selecting unit is used to that different brightness acquisition units to be selected to acquire measured zone corresponding with brightness acquisition unit every time, to obtain the brightness value of all measured zones on display by multiple brightness acquisition units.The brightness acquisition device acquires the brightness value of all measured zones on display by multiple brightness acquisition units, avoids and moves back and forth display and consume a large amount of time.
Description
Technical field
The utility model relates to luminance test technical fields, are in particular to a kind of brightness acquisition device and test
System.
Background technique
During liquid crystal display (Liquid Crystal Display, LCD) detects luminance uniformity contrast,
The brightness value for needing to acquire multiple points on LCD calculates average brightness, the uniformity, contrast of LCD by formula, then
Result is analyzed and judges whether product is qualified.
Traditional test mode is using BM-7 as test equipment, and the sensor position of BM-7 is fixed, and PC control is surveyed
Product in test stand moves back and forth, so that BM-7 can be measured that the multiple spot brightness value on LCD, and by data summarization in EXCEL
In table.The test data of an obtained flake products needs human-edited EXCEL to calculate, obtain average brightness, uniformly
The value of degree, contrast, and determine whether product is qualified.In such a way that BM-7 is successively measured, elapsed time is too long；Human-edited
EXCEL is easy error, and measurement accuracy is not high.
Brightness on the market, the uniformity, contrast test macro acquire data using ccd sensor, and control equipment is multiple
It is miscellaneous, power consumption is high, error is big, cost is high, be not suitable for large-scale use.
Utility model content
The purpose of this utility model is to provide a kind of brightness acquisition device and test macro, which passes through
The brightness value of all measured zones on multiple brightness acquisition unit acquisition displays, avoids and moves back and forth display and consume
The a large amount of time.
The utility model embodiment is achieved in that
In a first aspect, the utility model embodiment provides a kind of brightness acquisition device, for acquiring the brightness value of display,
The brightness acquisition device includes multiple brightness acquisition units and selecting unit, the multiple brightness acquisition unit with the choosing
Unit electrical connection is selected, each brightness acquisition unit corresponds to a measured zone on the display；The selecting unit is used for
Different brightness acquisition units is selected to acquire the brightness value of measured zone corresponding with the brightness acquisition unit, every time to pass through
The multiple brightness acquisition unit obtains the brightness value of all measured zones on the display.
Second aspect, the utility model embodiment provide a kind of test macro, including host computer and brightness acquisition device, institute
It includes: multiple brightness acquisition units, choosing that brightness acquisition device, which is stated, for acquiring the brightness value of display, the brightness acquisition device
Unit and controller are selected, the multiple brightness acquisition unit is electrically connected with the selecting unit, the controller and the choosing
It selects unit, the multiple brightness acquisition unit and the host computer to be electrically connected, described in each brightness acquisition unit correspondence
A measured zone on display；The selecting unit be used to selecting every time different brightness acquisition unit acquire with it is described bright
The brightness value of the corresponding measured zone of acquisition unit is spent, to obtain on the display by the multiple brightness acquisition unit
The brightness value of all measured zones；The controller is used to export selection signal to the selecting unit；The selecting unit is used
The brightness value is acquired in selection brightness acquisition unit corresponding with the selection signal；The controller is also used to receive each
The brightness value of the brightness acquisition unit acquisition；The host computer is for receiving the brightness value and according to the brightness value
Brightness, the uniformity and the contrast of the display is calculated.
Compared with the prior art, the utility model has the following beneficial effects: a kind of brightness acquisition provided by the utility model
Device and test macro, the brightness acquisition device include multiple brightness acquisition units and selecting unit, multiple brightness acquisition units
It is electrically connected with selecting unit, each brightness acquisition unit corresponds to a measured zone on display；Selecting unit is for every
The different brightness acquisition unit of secondary selection acquires the brightness value of measured zone corresponding with the brightness acquisition unit, by more
A brightness acquisition unit obtains the brightness value of all measured zones on display.As it can be seen that just by multiple brightness acquisition units
The brightness value that all measured zones on display can be acquired, avoids and moves back and forth display and consume a large amount of time, subtract
In working hour needed for having lacked test, reduce cost of labor.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment is cited below particularly, and
Cooperate appended attached drawing, is described in detail below.
Detailed description of the invention
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.Therefore, below to attached
The detailed description of the embodiments of the present invention provided in figure is not intended to limit the range of claimed invention,
But it is merely representative of the selected embodiment of the utility model.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without creative efforts, belongs to the model of the utility model protection
It encloses.
Fig. 1 shows the structural block diagram of test macro provided by the utility model；
Fig. 2 shows the circuit diagrams of brightness acquisition device provided by the utility model；
Fig. 3 shows the circuit diagram of brightness acquisition unit provided by the utility model；
Fig. 4 shows the circuit diagram of selecting unit provided by the utility model.
Icon: 1- test macro；10- host computer；20- brightness acquisition device；21- brightness acquisition unit；22- selection is single
Member；23- controller；30- display；40- communication unit.
Specific embodiment
Below in conjunction with attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear
Chu is fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole realities
Apply example.The component of the utility model embodiment being usually described and illustrated herein in the accompanying drawings can be come with a variety of different configurations
Arrangement and design.Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit below
The range of claimed invention, but it is merely representative of the selected embodiment of the utility model.Based on the utility model
Embodiment, those skilled in the art's every other embodiment obtained without making creative work, all
Belong to the range of the utility model protection.
As shown in Figure 1, being the structural block diagram of test macro 1 provided by the utility model, test macro 1 includes host computer
10 and brightness acquisition device 20, brightness acquisition device 20 is used to acquire the brightness value of display 30, and brightness acquisition device 20 includes:
Multiple brightness acquisition units 21, selecting unit 22 and controller 23, multiple brightness acquisition units 21 are electrically connected with selecting unit 22
It connects, controller 23 is electrically connected with selecting unit 22, multiple brightness acquisition units 21 and host computer 10, each brightness acquisition unit
A measured zone on 21 corresponding displays 30.
As Figure 2-3, brightness acquisition unit 21 is for acquiring measured zone corresponding with the brightness acquisition unit 21
Brightness value.Wherein, when measured zone can be understood as display 30 and be covered on brightness acquisition device 20, display 30 is covered on
The region of brightness acquisition unit 21.
In the present embodiment, multiple brightness acquisition units 21 can arrange by matrix shape.It is appreciated that multiple brightness are adopted
Collection unit 21 can be set to 16, can be with when carrying out printed circuit board (Printed Circuit Board, PCB) design
16 brightness acquisition units 21 are arranged into 4*4 matrix shape, then are corresponding with 16 measured zones on display 30.
In the present embodiment, multiple brightness acquisition units 21 include luminance sensor, luminance sensor and selecting unit
22 and controller 23 be electrically connected.
In the present embodiment, luminance sensor includes the first pin ADR, second pin SCL and third pin SDA, and first
Pin ADR is electrically connected with selecting unit 22, and second pin SCL and third pin SDA are electrically connected with controller 23.
It is appreciated that the first pin ADR cooperates drive software, the enabled use of luminance sensor can be used as, when the first pin
When ADR receives low level, luminance sensor acquires the brightness value of the corresponding measured zone of the luminance sensor, and draws by second
The brightness value of acquisition is transmitted to controller 23 by foot SCL and third pin SDA；When the first pin ADR receives high level, brightness
Sensor is in off working state, will not carry out brightness value acquisition to the corresponding measured zone of the luminance sensor.Wherein, low electricity
Flat can be 0V, and high level can be 3.3V.
In the present embodiment, brightness acquisition unit 21 can use the luminance sensor of model BH1750FVI, but unlimited
In the luminance sensor of model BH1750FVI.
In the present embodiment, selecting unit 22 is used to that different brightness acquisition units 21 to be selected to acquire every time to acquire with brightness
The brightness value of the corresponding measured zone of unit 21, to obtain all measurements on display 30 by multiple brightness acquisition units 21
The brightness value in region.
As shown in figure 4, selecting unit 22 includes decoder U17, decoder U17 and selecting unit 22 and controller 23 electricity
Connection.
Decoder U17 includes multiple selection pins and multiple enabled pins, and multiple selection pins are electrically connected with controller 23
It connects, multiple enabled pins are electrically connected with multiple brightness acquisition units 21 respectively.
In the present embodiment, multiple selection pins can be set to 4, including first choice pin A, the second selection pin
B, third selection pin C and the 4th selection pin D.Multiple enabled pins can be set to 16, including the first enabled pin Y0,
Second enabled pin Y1, third enable pin Y2, the 4th enabled pin Y3, the 5th enabled pin Y4, the 6th enabled pin Y5, the
Seven enabled pin Y6, the 8th enabled pin Y7, the 9th enabled pin Y8, the tenth enabled pin Y9, the 11st enabled pin Y10,
12nd enabled pin Y11, the 13rd enabled pin Y12, the 14th enabled pin Y13, the 15th enabled pin Y14, the tenth
Six enabled pin Y15.
In the present embodiment, selecting unit 22 can use the decoder of model 74HC154.
In the present embodiment, controller 23 is used to export selection signal to selecting unit 22, so that selecting unit 22 selects
Brightness acquisition unit 21 corresponding with selection signal acquires brightness value.
In the present embodiment, multiple brightness acquisition units 21 are correspondingly arranged 16, including the first luminance sensor U1, second
Luminance sensor U2, third luminance sensor U3, the 4th luminance sensor U4, the 5th luminance sensor U5, the 6th brightness sensing
Device U6, the 7th luminance sensor U7, the 8th luminance sensor U8, the 9th luminance sensor U9, the tenth luminance sensor U10,
11 luminance sensor U11, the 12nd luminance sensor U12, the 13rd luminance sensor U13, the 14th luminance sensor
U14, the 15th luminance sensor U15 and the 16th luminance sensor U16；The first pin ADR1 of first luminance sensor U1 with
First enabled pin Y0 electrical connection, the first pin ADR2 of the second luminance sensor U2 are electrically connected with the second enabled pin Y1, the
The first pin ADR3 of three luminance sensor U3 enables pin Y2 with third and is electrically connected, the first pin of the 4th luminance sensor U4
ADR4 is electrically connected with the 4th enabled pin Y3, and the first pin ADR5 and the 5th enabled pin Y4 of the 5th luminance sensor U5 is electrically connected
It connecing, the first pin ADR6 of the 6th luminance sensor U6 is electrically connected with the 6th enabled pin Y5, and the of the 7th luminance sensor U7
One pin ADR7 is electrically connected with the 7th enabled pin Y6, the first pin ADR8 of the 8th luminance sensor U8 and the 8th enabled pin
Y7 electrical connection, the first pin ADR9 of the 9th luminance sensor U9 are electrically connected with the 9th enabled pin Y8, the tenth luminance sensor
The first pin ADR10 of U10 is electrically connected with the tenth enabled pin Y9, the first pin ADR11 of the 11st luminance sensor U11 with
11st enabled pin Y10 electrical connection, the first pin ADR12 and the 12nd enabled pin Y11 of the 12nd luminance sensor U12
Electrical connection, the first pin ADR13 of the 13rd luminance sensor U13 are electrically connected with the 13rd enabled pin Y12, the 14th brightness
The enabled pin Y13 electrical connection of the first pin ADR14 the 14th of sensor U14, the first pin of the 15th luminance sensor U15
ADR15 is electrically connected with the 15th enabled pin Y14, and the first pin ADR16 of the 16th luminance sensor U16 and the 16th is enabled
Pin Y15 electrical connection；First choice pin A, second selection pin B, third selection pin C and the 4th selection pin D with control
Device 23 processed is electrically connected.
In the present embodiment, when controller 23 to first choice pin A, second selection pin B, third selection pin C and
When 4th selection pin D sends low level (selection signal), first pin of the decoder U17 to the first luminance sensor U1
ADR1 sends low level, and the first pin ADR of remaining 15 luminance sensor sends high level, at this time the first luminance sensor
U1 acquires the brightness value of the corresponding measured zone of the first luminance sensor U1, remaining 15 luminance sensor is in inoperative shape
State；When controller 23 sends low level and the 4th choosing to first choice pin A, the second selection pin B and third selection pin C
(i.e. selection signal) when pin D sends high level is selected, decoder U17 is sent to the first pin ADR2 of the second luminance sensor U2
The first pin ADR of remaining 15 luminance sensor of low level sends high level, the second luminance sensor U2 acquisition at this time the
The brightness value of the corresponding measured zone of two luminance sensor U2, remaining 15 luminance sensor are in off working state；With such
It pushes away, decoder U17 successively controls the brightness value that 16 luminance sensors gradually acquire 16 measured zones.
Further, in the present embodiment, multiple brightness acquisition units 21 and selecting unit 22 can by interface J1 with
Controller 23 is electrically connected.
In the present embodiment, controller 23 is also used to receive the brightness value that each brightness acquisition unit 21 acquires, and will be bright
Angle value is sent to a host computer 10.
In the present embodiment, host computer 10 is for receiving brightness value and the bright of display 30 being calculated according to brightness value
Degree, the uniformity and contrast.
It is appreciated that controller 23 is electrically connected with display 30, when controller 23, which controls display 30, shows full white screen,
Controller 23 sends selection signal to selecting unit 22, so that selecting unit 22 selects brightness acquisition corresponding with selection signal single
Member 21 acquires brightness value, and collected brightness value is sent controller 23 by brightness acquisition unit 21, and controller 23 is sent in real time again
To host computer 10, after the brightness value of measured zones all on display 30 is collected, host computer 10 is by all measured zones
Brightness value accumulate and divide by the number of measured zone, the brightness of display 30 is calculated；Host computer 10 is by institute simultaneously
There is the minimum luminance value in the brightness value of measured zone divided by the maximum brightness value in the brightness value of all measured zones, calculates
To the uniformity of display 30.
Black and white gridiron pattern is shown when controller 23 controls display 30, i.e. the measured zone of half is white screen, remaining half
Measured zone be blank screen, controller 23 to selecting unit 22 send selection signal so that selecting unit 22 selection with selection believe
Number corresponding brightness acquisition unit 21 acquires brightness value, and collected brightness value is sent controller 23 by brightness acquisition unit 21,
Controller 23 is sent to host computer 10 in real time again, upper after the brightness value of measured zones all on display 30 is collected
The average brightness value that measured zone is blank screen is calculated in machine 10, and the average brightness value that measured zone is white screen is also calculated,
It is the average brightness value of white screen divided by measured zone by average brightness value that measured zone is blank screen, display 30 is calculated
Contrast.
In the present embodiment, host computer 10 can be acquired using the macro each brightness acquisition unit 21 of reception of VBA of Excel
Brightness value calculates brightness, the uniformity and the contrast of the display 30 with all brightness values of the formula manipulation of Excel, and
Automatically determine whether the display 30 is qualified, and calculated result and received brightness value are saved to reservoir.
As it can be seen that controlling 16 luminance sensors in such a way that the multiple spot of the application measures simultaneously and almost starting simultaneously at survey
Amount, the brightness value for acquiring 16 measured zones probably needs 2.6s, and the brightness value that BM-7 acquires 16 measured zones probably needs
More than ten seconds are wanted, with using on BM-7 acquisition display 30 compared with the scheme of the brightness value in multimetering region, the application can be saved
About more time of measuring are saved, in working hour needed for reducing test, reduce cost of labor；Error is corrected by software algorithm,
Measurement accuracy can be improved in calibration data；And the power consumption of the power dissipation ratio ccd sensor of luminance sensor is lower.
In the present embodiment, controller 23 can use but be not limited to single-chip microcontroller, and host computer 10 can be used but is not limited to
Computer, plate or palm PC etc., display 30 can use but be not limited to liquid crystal display 30.
Further, in the present embodiment, test macro 1 further includes communication unit 40, and controller 23 passes through communication unit
40 are electrically connected with host computer 10.Communication unit 40 can use but be not limited to universal asynchronous receiving-transmitting transmitter (Universal
Asynchronous Receiver/Transmitter, UART).
In conclusion brightness acquisition device provided by the utility model and test macro, which includes more
A brightness acquisition unit and selecting unit, multiple brightness acquisition units are electrically connected with selecting unit, each brightness acquisition unit
A measured zone on corresponding display；Selecting unit be used to selecting every time different brightness acquisition unit acquire with it is described bright
The brightness value of the corresponding measured zone of acquisition unit is spent, to obtain all measurements on display by multiple brightness acquisition units
The brightness value in region.As it can be seen that the brightness value of all measured zones on display can be acquired by multiple brightness acquisition units,
It avoids and moves back and forth display and consume a large amount of time, in working hour needed for reducing test, reduce cost of labor.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition
Solve the concrete meaning of above-mentioned term in the present invention.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " on ", "lower", "left", "right", "inner", "outside" etc.
The orientation or positional relationship of instruction be based on the orientation or positional relationship shown in the drawings or the utility model product use when
The orientation or positional relationship usually put, is merely for convenience of describing the present invention and simplifying the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
The limitation of the utility model.The above descriptions are merely preferred embodiments of the present invention, and it is practical new to be not limited to this
Type, for those skilled in the art, the present invention may have various modifications and changes.All essences in the utility model
Mind and principle within, any modification, equivalent replacement, improvement and so on, should be included in the protection scope of the utility model it
It is interior.
Claims (10)
1. a kind of brightness acquisition device, for acquiring the brightness value of display, which is characterized in that the brightness acquisition device includes
Multiple brightness acquisition units and selecting unit, the multiple brightness acquisition unit are electrically connected with the selecting unit, Mei Geliang
Degree acquisition unit corresponds to a measured zone on the display；
The selecting unit is used to that different brightness acquisition units to be selected to acquire survey corresponding with the brightness acquisition unit every time
The brightness value in region is measured, to obtain the brightness of all measured zones on the display by the multiple brightness acquisition unit
Value.
2. brightness acquisition device as described in claim 1, which is characterized in that the brightness acquisition device further includes controller,
The controller is electrically connected with the selecting unit and the multiple brightness acquisition unit；
The controller is used to export selection signal to the selecting unit；
The selecting unit is for selecting brightness acquisition unit corresponding with the selection signal to acquire the brightness value.
3. brightness acquisition device as claimed in claim 2, which is characterized in that the controller is also used to receive each described bright
The brightness value of acquisition unit acquisition is spent, and the brightness value is sent to a host computer.
4. brightness acquisition device as claimed in claim 2, which is characterized in that the multiple brightness acquisition unit includes brightness
Sensor, the luminance sensor are electrically connected with the selecting unit and the controller.
5. brightness acquisition device as claimed in claim 4, which is characterized in that the luminance sensor includes the first pin, the
Two pins and third pin, first pin are electrically connected with the selecting unit, the second pin and the third pin
It is electrically connected with the controller.
6. brightness acquisition device as claimed in claim 2, which is characterized in that the selecting unit includes decoder, described to translate
Code device is electrically connected with the selecting unit and the controller.
7. brightness acquisition device as claimed in claim 6, which is characterized in that the decoder includes multiple selection pins and more
A enabled pin, the multiple selection pin are electrically connected with the controller, the multiple enabled pin respectively with it is described more
A brightness acquisition unit electrical connection.
8. brightness acquisition device as described in claim 1, which is characterized in that the multiple brightness acquisition unit presses matrix shape
Arrangement.
9. a kind of test macro, which is characterized in that including host computer and brightness acquisition device, the brightness acquisition device is for adopting
Collect the brightness value of display, the brightness acquisition device includes: multiple brightness acquisition units, selecting unit and controller, described
Multiple brightness acquisition units are electrically connected with the selecting unit, the controller and the selecting unit, the multiple brightness
Acquisition unit and the host computer are electrically connected, and each brightness acquisition unit corresponds to a measurement zone on the display
Domain；
The selecting unit is used to that different brightness acquisition units to be selected to acquire survey corresponding with the brightness acquisition unit every time
The brightness value in region is measured, to obtain the brightness of all measured zones on the display by the multiple brightness acquisition unit
Value；
The controller is used to export selection signal to the selecting unit；
The selecting unit is for selecting brightness acquisition unit corresponding with the selection signal to acquire the brightness value；
The controller is also used to receive the brightness value of each brightness acquisition unit acquisition；
The host computer be used for receive the brightness value and according to the brightness value be calculated the display brightness, uniformly
Degree and contrast.
10. test macro as claimed in claim 9, which is characterized in that the test macro further includes communication unit, the control
Device processed passes through the communication unit and the upper mechatronics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821670778.3U CN208704880U (en) | 2018-10-15 | 2018-10-15 | A kind of brightness acquisition device and test macro |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821670778.3U CN208704880U (en) | 2018-10-15 | 2018-10-15 | A kind of brightness acquisition device and test macro |
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| CN208704880U true CN208704880U (en) | 2019-04-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022120584A1 (en) * | 2020-12-08 | 2022-06-16 | 深圳市艾比森光电股份有限公司 | Led display unit yin-yang color measuring apparatus and measuring method |
-
2018
- 2018-10-15 CN CN201821670778.3U patent/CN208704880U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022120584A1 (en) * | 2020-12-08 | 2022-06-16 | 深圳市艾比森光电股份有限公司 | Led display unit yin-yang color measuring apparatus and measuring method |
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Address after: 518000, No. six, No. 3, Henggang street, Longgang District, Guangdong, Shenzhen Patentee after: Shenzhen Jinghua display Electronics Co., Ltd Address before: 518100 No. 3, Liuhe Road, Henggang Street, Longgang District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN JINGHUA DISPLAYS Co.,Ltd. |
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