CN107516482B - ARM-based OLED screen detection compensation method - Google Patents
ARM-based OLED screen detection compensation method Download PDFInfo
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- CN107516482B CN107516482B CN201710757337.0A CN201710757337A CN107516482B CN 107516482 B CN107516482 B CN 107516482B CN 201710757337 A CN201710757337 A CN 201710757337A CN 107516482 B CN107516482 B CN 107516482B
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
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Abstract
The invention provides an ARM-based OLED screen detection compensation method, which comprises the following steps: s1, the ARM master control sends a detection starting instruction to a plurality of ARM submachine at the same time; s2, after receiving the detection starting instruction, the ARM submachine sends an OLED screen fetching instruction to the manipulators controlled by the ARM submachine; s3, the manipulator moves the OLED screen to an OLED screen testing station; s4, the ARM submachine outputs MIPI signals to light the OLED screen; s5, the ARM submachine sends an acquisition instruction to the CCD camera; s6, the lighted OLED screen is photographed by the CCD camera, and pixel data collection is completed and is transmitted to the ARM submachine; and S7, the ARM submachine compensates the OLED screen through an image algorithm, and returns the result to the ARM main control. The invention has the beneficial effects that: can carry out synchronous detection to many OLED screens, detection efficiency is higher.
Description
Technical Field
The invention relates to an OLED screen detection compensation method, in particular to an ARM-based OLED screen detection compensation method.
Background
In the process of producing the OLED screen by a screen factory, the quality of the OLED screen is uneven due to the relationship between the process and the raw materials, the yield is low after one-time production, and the loss is large.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides an ARM-based OLED screen detection compensation method capable of reducing the rejection rate.
The invention provides an ARM-based OLED screen detection compensation method, which comprises the following steps:
s1, the ARM master control sends a detection starting instruction to a plurality of ARM submachine at the same time;
s2, after receiving the detection starting instruction, the ARM submachine sends an OLED screen fetching instruction to the manipulators controlled by the ARM submachine;
s3, the manipulator moves the OLED screen to an OLED screen testing station;
s4, the ARM submachine outputs MIPI signals to light the OLED screen;
s5, the ARM submachine sends an acquisition instruction to the CCD camera;
s6, the lighted OLED screen is photographed by the CCD camera, and pixel data collection is completed and is transmitted to the ARM submachine;
and S7, the ARM submachine compensates the OLED screen through an image algorithm, and returns the result to the ARM main control.
As a further improvement of the present invention, in step S7, the ARM handset performs image algorithm detection according to the pixel data collected by the CCD camera, then writes compensated calibration data into the driver chip of the OLED screen, and finally returns the detection result to the ARM main control.
As a further improvement of the present invention, in step S7, if the uniformity of the screen of the OLED panel is poor, gray compensation is performed.
As a further improvement of the present invention, step S3 includes the following sub-steps:
s31, electrifying and initializing the manipulator;
s32, judging whether an OLED screen taking instruction of the ARM submachine is received, if so, moving the OLED screen to an OLED screen testing station by the manipulator, and if not, executing the step S32 again;
s33, returning the mechanical arm to a zero position;
and S34, sending a manipulator zero adding success instruction to the ARM submachine.
As a further improvement of the present invention, step S6 includes the following sub-steps:
s61, electrifying and initializing the CCD camera;
s62, judging whether an acquisition instruction of the ARM submachine is received or not, if so, photographing the lighted OLED screen by the CCD camera to finish pixel data acquisition and transmit the pixel data to the ARM submachine, and if not, executing the step S62 again;
s63, performing ready action of the CCD camera;
and S64, sending a CCD camera ready instruction to the ARM submachine.
As a further improvement of the invention, the ARM master controller is communicated with the ARM submachine through the network port and the exchanger.
As a further improvement of the present invention, in step S1, the ARM master control simultaneously sends a start detection command to 64 ARM slaves.
The invention has the beneficial effects that: through the scheme, synchronous detection can be carried out on a plurality of OLED screens, the detection efficiency is high, the defective rate can be reduced through compensation for defective pictures, and the waste of raw materials is reduced.
Drawings
FIG. 1 is a multi-path flow diagram of an ARM-based OLED panel detection compensation method according to the present invention.
FIG. 2 is a schematic diagram of a single-pass process of an ARM-based OLED panel detection compensation method according to the present invention.
FIG. 3 is a schematic flow chart of a manipulator of an ARM-based OLED panel detection compensation method.
FIG. 4 is a schematic flow chart of a CCD camera of the ARM-based OLED panel detection compensation method of the present invention.
FIG. 5 is a schematic flow chart of an ARM submachine of an ARM-based OLED screen detection compensation method according to the present invention.
Detailed Description
The invention is further described with reference to the following description and embodiments in conjunction with the accompanying drawings.
As shown in fig. 1 to 5, an ARM-based OLED panel detection compensation method includes the following steps:
s1, the ARM master control sends a detection starting instruction to a plurality of ARM submachine at the same time;
s2, after receiving the detection starting instruction, the ARM submachine sends an OLED screen fetching instruction to the manipulators controlled by the ARM submachine;
s3, the manipulator moves the OLED screen to an OLED screen testing station;
s4, the ARM submachine outputs MIPI signals to light the OLED screen;
s5, the ARM submachine sends an acquisition instruction to the CCD camera;
s6, the lighted OLED screen is photographed by the CCD camera, and pixel data collection is completed and is transmitted to the ARM submachine;
and S7, the ARM submachine compensates the OLED screen through an image algorithm, and returns the result to the ARM main control.
As shown in fig. 1 to 5, in step S7, the ARM handset performs image algorithm detection according to pixel data collected by the CCD camera, then writes compensated calibration data into the driver chip of the OLED screen, and finally returns the detection result to the ARM main control.
As shown in fig. 1 to 5, in step S7, if the uniformity of the screen of the OLED panel is poor, gray compensation is performed.
As shown in fig. 3, step S3 includes the following sub-steps:
s31, electrifying and initializing the manipulator;
s32, judging whether an OLED screen taking instruction of the ARM submachine is received, if so, moving the OLED screen to an OLED screen testing station by the manipulator, and if not, executing the step S32 again;
s33, returning the mechanical arm to a zero position;
and S34, sending a manipulator zero adding success instruction to the ARM submachine.
As shown in fig. 4, step S6 includes the following sub-steps:
s61, electrifying and initializing the CCD camera;
s62, judging whether an acquisition instruction of the ARM submachine is received or not, if so, photographing the lighted OLED screen by the CCD camera to finish pixel data acquisition and transmit the pixel data to the ARM submachine, and if not, executing the step S62 again;
s63, performing ready action of the CCD camera;
and S64, sending a CCD camera ready instruction to the ARM submachine.
The ARM master controller is communicated with the ARM submachine through the network port and the switchboard.
In step S1, the ARM master simultaneously sends a start detection command to the 64 ARM slaves.
The invention provides an ARM-based OLED screen detection compensation method, which adopts a network topology structure, the network communication protocol is UDP, one ARM is set as a master control, the other ARM is the sub-machines, the number of the current sub-machines is 64, the ARM main control and 64 ARM sub-machines are networked by adopting a gigabit switch, the ARM main control simultaneously sends a detection starting instruction to the 64 ARM sub-machines, after the 64 ARM sub-machines receive the instruction, sending an OLED screen fetching instruction to each controlled manipulator, transmitting the OLED screen to a specified test station, outputting an MIPI signal to light the screen, sending an acquisition instruction to a CCD camera by an ARM submachine, completing pixel data acquisition by the camera, sending the data to the ARM submachine, compensating the ARM submachine by an image algorithm, writing data into the OLED screen drive IC, after the screen is corrected, continuously taking the OLED screen by the manipulator to finish the next detection and correction, and returning a detection result to the ARM main control after the ARM submachine is detected; the ARM main control and the ARM submachine both adopt a porphyrizing RSB4221B industrial control board, and an operating system is LINUX and carries 3 gigabit network interfaces. The manipulator uses the three-axis linkage series provided by EPSON. SONNY corporation.
The invention provides an ARM-based OLED screen detection compensation method, which comprises the steps of full-automatic feeding, automatic detection, automatic photographing and automatic algorithm compensation correction data of a manipulator, wherein OTP is written into a self-designed drive IC; the system is provided with an image gray correction algorithm module, a GAMMA curve module, a brightness adjusting module, an OTP writing function, voltage setting and overcurrent and overvoltage protection; by adopting an international leading UDP broadcast communication mode, 64 OLED screens can be tested simultaneously, and corresponding parameter compensation is completed.
The ARM-based OLED screen detection compensation method can efficiently detect defective products, scrap physically damaged screens, and perform gray level compensation on OLED screens with poor picture consistency by adopting the compensation algorithm of the invention, so that the uniformity of the screens is improved, the delivery requirements are met, the waste of raw materials is reduced, and benefits are created for enterprises.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (3)
1. An OLED screen detection compensation method based on ARM is characterized by comprising the following steps:
s1, the ARM master control sends a detection starting instruction to a plurality of ARM submachine at the same time;
s2, after receiving the detection starting instruction, the ARM submachine sends an OLED screen fetching instruction to the manipulators controlled by the ARM submachine;
s3, the manipulator moves the OLED screen to an OLED screen testing station;
s4, the ARM submachine outputs MIPI signals to light the OLED screen;
s5, the ARM submachine sends an acquisition instruction to the CCD camera;
s6, the lighted OLED screen is photographed by the CCD camera, and pixel data collection is completed and is transmitted to the ARM submachine;
s7, the ARM submachine compensates the OLED screen through an image algorithm, and returns the result to the ARM main control;
in step S7, the ARM submachine performs image algorithm detection according to pixel data acquired by the CCD camera, then writes compensated calibration data into a driver chip of the OLED screen, and finally returns a detection result to the ARM main control;
in step S7, if the uniformity of the OLED screen is poor, gray compensation is performed;
step S3 includes the following substeps:
s31, electrifying and initializing the manipulator;
s32, judging whether an OLED screen taking instruction of the ARM submachine is received, if so, moving the OLED screen to an OLED screen testing station by the manipulator, and if not, executing the step S32 again;
s33, returning the mechanical arm to a zero position;
s34, sending a manipulator zero adding success instruction to the ARM submachine;
step S6 includes the following substeps:
s61, electrifying and initializing the CCD camera;
s62, judging whether an acquisition instruction of the ARM submachine is received or not, if so, photographing the lighted OLED screen by the CCD camera to finish pixel data acquisition and transmit the pixel data to the ARM submachine, and if not, executing the step S62 again;
s63, performing ready action of the CCD camera;
and S64, sending a CCD camera ready instruction to the ARM submachine.
2. The ARM-based OLED screen detection compensation method of claim 1, wherein: the ARM master controller is communicated with the ARM submachine through the network port and the switchboard.
3. The ARM-based OLED screen detection compensation method of claim 1, wherein: in step S1, the ARM master simultaneously sends a start detection command to the 64 ARM slaves.
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| CN111462697B (en) * | 2020-04-28 | 2022-07-19 | 苏州佳智彩光电科技有限公司 | Configurable script based AMOLED screen mura external optical compensation method and system |
| CN111477177B (en) * | 2020-05-11 | 2022-07-05 | 苏州佳智彩光电科技有限公司 | High-speed external optical compensation method and system |
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Effective date of registration: 20191012 Address after: 215000 no.258, Yihe Road, Wujiang Economic and Technological Development Zone, Suzhou City, Jiangsu Province Applicant after: Suzhou Jia Zhi Ai Optoelectronic Technology Co., Ltd. Address before: 518000, Guangdong, Shenzhen, Qianhai Shenzhen Hong Kong cooperation zone in front of the Bay Road A building 201 room (settled in Shenzhen Qianhai business secretary Co., Ltd.) Applicant before: Shenzhen Jiayi Photoelectric Technology Co., Ltd. |
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