CN112467033B - OLED screen repairing method, display terminal and readable storage medium - Google Patents
OLED screen repairing method, display terminal and readable storage medium Download PDFInfo
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- CN112467033B CN112467033B CN202011407129.6A CN202011407129A CN112467033B CN 112467033 B CN112467033 B CN 112467033B CN 202011407129 A CN202011407129 A CN 202011407129A CN 112467033 B CN112467033 B CN 112467033B
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
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- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
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- H—ELECTRICITY
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
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- H10K59/12—Active-matrix OLED [AMOLED] displays
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
Abstract
The invention discloses an OLED screen repairing method, a display terminal and a readable storage medium. Wherein, the method comprises the following steps: acquiring screen information, and judging whether the current screen is an OLED screen or not according to the screen type information in the screen information; if the current screen is the OLED screen, setting an OLED screen mark; receiving a starting instruction of an aging production line, and acquiring the current time as the production time; judging whether the OLED screen mark is set or not; if the OLED screen mark is set, judging whether the OLED screen meets a preset repairing condition or not according to screen storage information in screen information and the production time; and if the OLED screen meets the preset repairing condition, entering a repairing mode. The OLED screen repairing method provided by the invention can reduce the risk of damage of the OLED screen when the whole OLED screen leaves a factory, and improve the display quality of the OLED screen.
Description
Technical Field
The invention relates to the technical field of display, in particular to an OLED screen repairing method, a display terminal and a readable storage medium.
Background
With the development of economic technology, the Organic Light Emitting Display (OLED) screen has been accepted by users. The OLED screen is well received by users due to the characteristics of excellent display characteristics, low power consumption and the like.
At present, due to the factors such as equipment cost, technical cost and the like, a plurality of OLED screen complete machine manufacturers in the industry do not directly produce OLED screen modules, but directly purchase the OLED screen modules from suppliers providing corresponding OLED screen modules, and then after taking the OLED screen complete machine manufacturers, the OLED screen complete machine manufacturers take screens of OLEDs, install rear shells, connect wires, install complete machines, electrify, apply high voltage, age and the like, and then put the OLED screen complete machine manufacturers into the market after the OLED screen complete machine manufacturers take the OLED screen modules. In fact, due to various factors such as market price fluctuation of the OLED screen modules, production plans of manufacturers of the OLED screen complete machine, market demands of the OLED screen complete machine and the like, the manufacturers of the OLED screen complete machine do not start the complete machine process production flow immediately after taking a batch of products of the OLED screen modules from corresponding suppliers, but need to perform a storage process for a certain period. In the storage process of the OLED screen module, due to the characteristics of the OLED, tiny parts or devices in the OLED screen module are easy to react with air pollutants such as water vapor or oxygen, and therefore certain deviation exists in the image quality of the OLED screen complete machine in the later period when the OLED screen complete machine works.
For the complete OLED screen manufacturer, due to the consideration of factors such as production efficiency, related equipment cost and technical cost, repair operation cannot be performed on the OLED screen in the current production flow in the industry, and self-repair is performed only after each use period when a customer uses the OLED screen after the OLED screen is delivered from a factory, so that the display of the OLED screen seen by the user at the beginning of use is different after the user purchases the OLED screen, and the user experience and brand image are influenced.
Disclosure of Invention
The invention mainly aims to provide an OLED screen repairing method, a display terminal and a readable storage medium, and aims to solve the problem that the user experience is influenced because the existing OLED screen complete machine is self-repaired only when a user uses the OLED screen complete machine.
In order to achieve the above object, the present invention provides a method for repairing an OLED panel, including:
acquiring screen information, and judging whether a current screen is an OLED screen or not according to screen type information in the screen information;
if the current screen is the OLED screen, setting an OLED screen mark;
receiving a starting instruction of an aging production line, and acquiring the current time as the production time;
judging whether the OLED screen mark is set or not;
if the OLED screen flag is set, judging whether the OLED screen meets a preset repair condition or not according to screen storage information in screen information and the production time;
and if the OLED screen meets the preset repairing condition, entering a repairing mode.
Optionally, if the OLED screen meets a preset repair condition, the step of entering a repair mode includes:
if the OLED screen meets the preset repairing condition, setting a repairing mark;
displaying a prompt window for judging whether to enter a repair mode in a display interface;
judging whether a repair rejection instruction input by a user is received within a preset time after the prompt window is displayed;
and if the repair rejection instruction input by the user is not received within the preset time from the display of the prompt window, entering a repair mode.
Optionally, the screen warehousing information includes warehousing time and warehousing temperature; the step of judging whether the OLED screen meets the preset repair condition or not according to the screen storage information and the production time in the screen information comprises the following steps:
calculating the difference value between the warehousing time and the production time as the actual warehousing time length;
determining a preset quality guarantee duration corresponding to the warehousing temperature in a preset mapping data table, and judging whether the actual warehousing duration is greater than the preset quality guarantee duration or not;
if the OLED screen meets the preset repair condition, the step of setting the repair mark comprises the following steps:
and if the actual storage time is longer than the preset quality guarantee time, setting a repair mark.
Optionally, if the OLED screen meets a preset repair condition, the step of entering a repair mode includes:
if the OLED screen meets a preset repairing condition, detecting a characteristic parameter value of a thin film transistor on the OLED screen; the characteristic parameter value includes a current detection value through the thin film transistor and a voltage detection value across the thin film transistor;
acquiring a current standard value corresponding to the voltage detection value according to a preset characteristic curve;
judging whether the current detection value is in an error range corresponding to the current standard value;
and when the current detection value is not in the preset error range of the current standard value, loading a specific voltage at two ends of the thin film transistor to return the current detection value to the preset error range of the current standard value.
Optionally, the step of applying a specific voltage across the thin film transistor to return the current detection value to the preset error range of the current standard value when the current detection value is not within the preset error range of the current standard value comprises:
when the current detection value is smaller than the minimum value of the error range of the current standard value, loading forward voltage at two ends of the thin film transistor until the current detection value returns to the error range of the current standard value;
and when the current detection value is larger than the maximum value of the error range of the current standard value, loading negative voltage at two ends of the thin film transistor until the current detection value returns to the error range of the current standard value.
Optionally, if the OLED screen meets a preset repair condition, the step of entering a repair mode includes:
and the repair state is fed back by controlling an indicator light and/or a sound generating device of the OLED screen.
Optionally, if the OLED screen meets a preset repair condition, the step of entering a repair mode includes:
and under the condition of successful repair, exiting the repair mode, setting the repair flag to be unset, and entering the aging mode.
Optionally, in case of successful repair, the repair mode is exited, the repair flag is set to be unset, and after the step of entering the aging mode:
when an instruction of restoring the factory default value is received, whether the repair mark is set is detected;
and if the repair mark is set, sending out factory early warning prompt.
The invention also provides a display terminal, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the computer program realizes the steps of the OLED screen repairing method when being executed by the processor.
The invention also provides a readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the OLED screen repair method as described above.
According to the OLED screen repairing method provided by the invention, the function of repairing the OLED screen body according to the production requirement is realized through the cooperation with the aging production line, the risk of damage of the OLED screen is reduced, the consistency of the OLED screen when the machine leaves the factory is improved, no production auxiliary equipment is required to be added, the cost is low, the production flow of the whole production line is not influenced, the production efficiency and the production quality are ensured, and the universality of the production flow is realized.
Drawings
FIG. 1 is a schematic structural diagram of a display terminal of an OLED screen repairing method according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a first embodiment of a repair method for an OLED panel according to the present invention;
FIG. 3 is a schematic flow chart of a second embodiment of the OLED panel repairing method according to the present invention;
FIG. 4 is a schematic flow chart of a third embodiment of an OLED panel repairing method according to the present invention;
fig. 5 is a schematic detailed flowchart of step S740 in the third embodiment of the repair method for an OLED panel according to the present invention;
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As can be understood by those skilled in the art, the implementation main body in the embodiment of the OLED screen repair method of the present invention may be a display terminal, such as a display terminal of a television, a tablet computer, a notebook computer, a palm computer, a mobile phone, or any other device capable of implementing the OLED screen repair method of the present invention, the device for repairing an OLED screen may be installed in the display terminal of a computer, a tablet computer, a mobile phone, or the like, or may be independent of the display terminal, and only performs communication connection with the display terminal, or any other suitable installation and use manner, and the display terminal is preferably used as the implementation main body in the embodiment of the OLED screen repair method of the present invention.
As shown in fig. 1, fig. 1 is a schematic structural diagram of a display terminal of a hardware operating environment according to an embodiment of the present invention.
The display terminal of the embodiment of the invention can be a PC, and can also be a mobile display terminal device with a display function, such as a smart phone, a tablet computer, an electronic book reader, a portable computer and the like. As shown in fig. 1, the display terminal may include: a processor 1001, e.g. a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., a WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001. Optionally, the display terminal may further include a display screen, a camera, a Radio Frequency (RF) circuit, a sensor, an audio circuit, a WiFi module, and the like. Such as light sensors, motion sensors, and other sensors, among others. Specifically, the light sensor may include an ambient light sensor that may adjust the brightness of the display screen according to the brightness of ambient light, and a proximity sensor that may turn off the display screen and/or the backlight when the mobile display terminal is moved to the ear. As one of the motion sensors, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally, three axes), detect the magnitude and direction of gravity when the mobile display terminal is stationary, and can be used for applications (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer and tapping) and the like for recognizing the attitude of the mobile display terminal; of course, the mobile display terminal may also be configured with other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which are not described herein again.
Referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of the repair method for an OLED panel according to the present invention.
Step S100, screen information is obtained;
wherein the screen information may include screen type information and screen warehousing information. The obtaining mode may include: information input by a user is received, as well as information obtained by analyzing system parameters.
Step S200, judging whether the current screen is an OLED screen or not according to the screen type information in the screen information;
specifically, whether the current screen is an OLED screen can be judged by analyzing screen type information preset in a system of the current screen.
Step S300, if the current screen is an OLED screen, setting an OLED screen mark;
the OLED screen mark corresponds to at least two expression forms: set and not set, in one embodiment, set corresponds to a "1" and not set corresponds to a "0". When step S300 is executed, the screen module to be assembled into a complete machine may be embodied, or the complete machine with the screen module already assembled may be embodied.
Step S400, receiving a starting instruction of an aging production line, and acquiring the current time as the production time;
the starting instruction is sent by related equipment arranged at an inlet end of an aging production line, specifically, when a current screen enters an aging production line working section, the current screen is electrified and initialized, the related equipment configured with the aging production line can send the starting instruction of the aging production line to the current screen, and when the current screen receives the starting instruction, the current time is obtained as the production time; the current screen is a complete machine with the screen module assembled.
Step S500, judging whether the OLED screen mark is set or not;
after the starting command is received, whether the OLED screen mark is set or not is directly read to identify whether the current screen is the OLED screen or not, a built-in analysis system is not needed to read related information again to judge the screen type, and the process is finished before the current screen enters an aging production line, so that the production efficiency is improved. And because the repair time of the OLED screen is very long, the OLED screen can be repaired under the condition of not influencing the original production efficiency by virtue of the characteristic of long period of the stations of the aging production line.
Step S600, if the OLED screen flag is set, judging whether the OLED screen meets a preset repair condition according to screen storage information in screen information and the production time;
the screen warehouse information may include: warehousing time, warehousing humidity, warehousing temperature, warehousing duration and the like; the preset repairing conditions can be set by a person skilled in the art according to actual needs; in an embodiment, the storage temperature and the preset quality guarantee duration corresponding to the storage humidity are determined in a preset mapping data table according to the storage duration, the storage humidity and the storage temperature of the screen, whether the storage duration is greater than the preset quality guarantee duration is judged, and if the actual storage duration is greater than the preset quality guarantee duration, the OLED screen meets the preset repair condition, wherein the preset mapping data table is a mapping data table of the preset quality guarantee duration, the storage temperature and the storage humidity pre-stored by the system, and one storage temperature and one storage humidity correspond to one corresponding preset quality guarantee duration. In another embodiment, the preset quality guarantee period corresponding to the storage humidity can be determined in a preset mapping data table only according to the storage period and the storage humidity of the screen, whether the storage period is greater than the preset quality guarantee period or not is judged, and if the actual storage period is greater than the preset quality guarantee period, the OLED screen meets the preset repair condition, wherein the preset mapping data table is a mapping data table of the preset quality guarantee period and the storage humidity pre-stored by the system, and one storage humidity corresponds to one corresponding preset quality guarantee period. In another embodiment, the preset quality guarantee period corresponding to the storage temperature can be determined in a preset mapping data table according to the storage period and the storage temperature of the screen, whether the storage period is longer than the preset quality guarantee period or not is judged, and if the actual storage period is longer than the preset quality guarantee period, the OLED screen meets the preset repair condition, wherein the preset mapping data table is a mapping data table of the preset quality guarantee period and the storage temperature pre-stored by the system, and one storage temperature corresponds to one corresponding preset quality guarantee period.
And step S700, if the OLED screen meets the preset repairing condition, entering a repairing mode.
It is known that the general operation process of the display terminal entering the aging production line to perform the aging mode is as follows: and sending a starting instruction of the aging mode after the display terminal is electrified and initialized by the equipment waiting for aging test, entering the aging mode after the display terminal receives the starting instruction, carrying out aging test on the display terminal, and exiting the aging mode after the aging test is finished. In the embodiment, the steps of the method for repairing the OLED screen are implemented by means of the stations of the aging production line, and as the OLED screen is repaired for a long time and the line of the aging production line is long, the machine needs to move for half an hour at least from the inlet to the outlet (the specific time can be set manually so as to meet the production requirement). The embodiment has utilized the longer advantage of the line body of ageing production line in the current production flow line station. It should be noted that, when the OLED screen is subjected to the aging test on the station line body of the aging production line, the OLED screen may be repaired by using a gap before the OLED screen enters the aging mode or a gap after the aging mode exits to the end of the aging production line, that is, the steps S500, S600, and S700 may be performed before the OLED screen enters the aging mode or after the aging mode is completed, which is not limited in this example, preferably, the steps S500, S600, and S700 are performed before the OLED screen enters the aging mode, that is, the OLED screen is repaired by using a gap before the OLED screen enters the aging mode.
The OLED screen body is subjected to the restoration function according to the production requirement through the cooperation with the aging production line, the risk of damage to the OLED screen is reduced, the consistency of factory leaving of the machine of the OLED screen is improved, no production auxiliary equipment needs to be added, the implementation cost is low, the production flow of the whole production line is not influenced, the production efficiency and the production quality are ensured, and the universality of the production flow is realized.
Further, referring to fig. 3, a schematic flow chart of a second embodiment of the OLED panel repairing method according to the present invention is shown, based on the above embodiment, the step S700 includes:
step S710, if the OLED screen meets the preset repairing condition, setting a repairing mark;
step S720, displaying a prompt window for judging whether to enter a repair mode in a display interface;
the display interface may be a display interface of other interactive devices interacting with the current OLED screen, or may be a display interface of the current OLED screen, and is preferably a display interface of the current OLED screen.
Step S730, judging whether a repair rejection instruction input by a user is received within a preset time after the prompt window is displayed;
the receiving of the repair rejection instruction input by the user means that a preset operation instruction corresponding to the key value input by the user in the system is the repair rejection instruction, and the user can finish the operation of inputting the key value by operating a keyboard or other peripheral input devices paired with the OLED screen and pressing a key or touching a specific control.
Step S740, entering a repair mode if a repair rejection instruction input by a user is not received within a preset time period after the prompt window is displayed;
as is known, the repair mode includes Offers, JBs, and the like, and those skilled in the art can set the repair mode according to an actual scenario, which is not limited in this embodiment.
And step S750, if a repair rejection instruction input by a user is received within a preset time from the display of the prompt window, setting a repair mark as an unset state, and entering an aging mode.
It should be noted that, after the OLED screen enters the repair mode, in general, when the OLED screen is in the repair mode, the display screen of the OLED screen is black, and cannot be used to display the repair state. In an embodiment, the repair state may be fed back in real time by controlling indicator lights and/or a sound generating device of the OLED screen, and specifically, the repair state may be fed back by controlling one or more indicator lights built in the OLED screen to emit a light source corresponding to the repair state or controlling a speaker or a buzzer built in the OLED screen to emit a sound corresponding to the repair state. In another embodiment, the method may further include sending repair state information to the interactive device in real time, so that the interactive device feeds back the repair state according to a preset policy after receiving the repair state information, where the feeding back according to the preset policy includes: the sound generating device sends out preset sound corresponding to the repair state information to feed back the repair state; or when receiving a specific instruction input by a user, the sound output device sends a preset sound corresponding to the repair state information to feed back the repair state; or the light source output device sends out a preset light source corresponding to the repair state information to feed back the repair state, and the light source output device can be a power indicator lamp or a display screen.
The step of entering the repair mode then comprises:
and under the condition of successful repair, exiting the repair mode, setting the repair flag to be unset, and entering the aging mode.
When an instruction of restoring the factory default value is received, detecting whether the repair mark is set; and if the repair mark is set, sending a factory early warning prompt.
The factory pre-warning prompt may be a factory pre-warning prompt by controlling an indicator light and/or a sound generating device of the OLED screen in one embodiment. In another embodiment, the communication signal may also be sent to the interactive device in real time, so that the interactive device performs factory warning prompting according to a preset policy after receiving the communication signal, where the prompting according to the preset policy includes: the sounding device sends out preset sound to carry out factory early warning prompt; or when a specific instruction input by a user is received, the voice output device sends out a preset voice to carry out factory pre-warning prompt; or the light source output device sends out a preset light source to carry out factory pre-warning prompt, and the light source output device can be an indicator lamp or a display screen. It can be understood that when the factory warning prompt is sent out, the worker can repair the OLED screen again until the repair is successful, so that the operation of restoring the factory default value of the OLED screen is smoothly completed, and the worker can also manually force the operation of restoring the factory default value of the OLED screen.
It should be noted that the OLED screen repair flag can be read and written, and a worker can read whether the OLED screen repair flag is set through a related user interface or a network interface, and can directly set the set state of the OLED screen repair flag through the related user interface or the network interface; for example, when the repair program judges that the OLED screen does not meet the preset repair condition, the repair flag is set to be unset, and the worker sets the OLED screen repair flag to be set through a related user interface or a network interface, then the repair flag of the OLED screen should be set, that is, the flag state set after the repair program judges should be subject to the flag state set directly by the user through the related interface. The technical personnel in the field can understand that the staff can set the repair flag through the relevant interface before receiving the start instruction of the aging production line, and also can set the repair flag after receiving the start instruction of the aging production line, when the repair flag is set before receiving the start instruction of the aging production line, the repair program does not need to judge and set the repair flag of the OLED screen again, that is, the repair program does not need to judge whether the OLED screen meets the preset repair condition again, so that the repair flag is set again according to whether the OLED screen meets the preset repair condition.
The OLED screen mark and the OLED screen restoration mark are programs built in the OLED screen, and the OLED screen restoration mark can be read and written through a related user interface or a network interface; the OLED screen mark can only be read through a relevant user interface or network interface, and the relevant code is set as follows:
boolean setOLEDFacor Repair switch (Boolean status); // set repair flags for OLED panels
Boolean getOLEDFacor Repair Switch (); // reading repair flags for OLED screens
Boolean isololdedpanel (); // read OLED Screen Mark
According to the method, before the OLED screen enters the repair mode, the mode of judging whether the rejection instruction input by the user is received within the preset time according to the display prompt window is adopted, so that the accuracy of judging whether the OLED screen needs to be repaired is improved, and the display quality and the production efficiency of the OLED screen are improved. And because the repair flag is not set when the repair is successful, even if the OLED screen is powered off when the repair is not successful in the repair process of the OLED screen, the OLED screen is powered on and then recognizes that the repair flag is set, and the OLED screen continues to enter a repair mode for repair until the OLED screen is successfully repaired. As is known, a power output device is configured on the aging line body, and the OLED screen is powered on all the time in the moving process of the OLED screen on the aging line body, but a short-time power failure condition may be caused by various reasons. In addition, the method also considers the reasons of manual misoperation and the like, the OLED screen complete machine which needs to be repaired is directly restored to the factory default value to be prepared for shipment and flow into the market, and when the factory default value is finally restored, if the repair mark is detected to be set, a factory early warning prompt is sent out, so that workers are reminded to manage and control, the display quality of the OLED screen is guaranteed, and the user experience and the brand image are improved.
Further, referring to fig. 4, which is a schematic flow chart of a third embodiment of the OLED screen repair method according to the present invention, based on the above embodiment, the step S600 includes:
step S610, calculating the difference value between the warehousing time and the production time as the actual warehousing time length;
the warehousing time is the time when the warehouse is entered and the storage is started.
Step S620, determining a preset quality guarantee duration corresponding to the warehousing temperature in a preset mapping data table, and judging whether the actual warehousing duration is greater than the preset quality guarantee duration;
and if the actual storage time is longer than the preset quality guarantee time, the OLED screen meets the preset repair condition. It should be noted that the preset mapping data table is a mapping data table of a storage temperature threshold range and a storage time length preset by the system, and one storage temperature threshold range corresponds to one preset storage time length. For example: in the preset mapping data table, the preset quality-guaranteeing warehousing time corresponding to 16-19 ℃ is 120 hours, the preset quality-guaranteeing warehousing time corresponding to 19-22 ℃ is 100 hours, the preset quality-guaranteeing warehousing time corresponding to 22-25 ℃ is 80 hours, the preset quality-guaranteeing warehousing time corresponding to 25-28 ℃ is 60 hours, and if the warehousing temperature is 23 ℃, the corresponding preset quality-guaranteeing warehousing time is 80 hours, it can be understood that the preset mapping data table can be set by a person skilled in the art according to actual conditions.
In the embodiment, the difference value between the warehousing time and the production time is calculated as the actual warehousing duration; determining a preset quality guarantee duration corresponding to the warehousing temperature in a preset mapping data table, and judging whether the actual warehousing duration is greater than the preset quality guarantee duration or not; the actual storage time is compared with the preset quality guarantee time to judge whether the OLED screen enters a repair mode, so that the automation and standardization of repairing the OLED screen by means of an aging production line can be improved, and manual intervention is not needed.
Further, referring to fig. 5, a detailed flowchart of step S740 of the method for repairing an OLED panel according to the third embodiment of the present invention is shown, where step S740 includes:
step S741, detecting a characteristic parameter value of the thin film transistor on the OLED screen; the characteristic parameter value includes a current detection value through the thin film transistor and a voltage detection value across the thin film transistor;
in the present embodiment, the Thin Film Transistor (TFT) is preferably an amorphous silicon transistor (a-Si: H-TFT). The characteristic parameter values comprise a current detection value passing through the thin film transistor and voltage detection values at two ends of the thin film transistor, namely after a correction instruction is received, the detection device detects the thin film transistor on the OLED display screen, the detected content comprises the voltage at two ends of the thin film transistor and the current passing through the thin film transistor, and the voltage detection value and the current detection value can be obtained respectively.
Step 742, obtaining a current standard value corresponding to the voltage detection value according to a preset characteristic curve;
note that, a preset number of thin film transistors in which characteristic deviation does not occur are used as detection samples, and the preset characteristic curve is formed by detecting a characteristic parameter of the thin film transistor in each detection sample, wherein in the preset characteristic curve, one voltage standard value corresponds to one current standard value.
Step S743, determining whether the current detection value is within an error range corresponding to the current standard value.
Every pixel point of present OLED screen host computer all has corresponding thin film transistor control, and the luminance of OLED lamp is relevant with the electric current, because there is the difference on every thin film transistor characteristic curve, for reaching the best display effect, can test every thin film transistor's characteristic at first to record characteristic curve, when OLED reached the required electric current of certain luminance, required voltage value promptly. And storing the characteristic curve obtained by the experiment in a storage device as a preset standard value of the characteristic parameter. In this embodiment, the preset standard values include a voltage standard value and a current standard value.
The specific comparison process is as follows: comparing the error ranges of the voltage detection values at the two ends of the film transistor with the voltage standard value, and when the voltage detection values fall within the error ranges of the voltage standard value, obtaining the error range of the current standard value corresponding to the voltage standard value, wherein the error range of the voltage standard value is the error range allowed by the voltage standard value; and comparing the error range of the current detection value passing through the thin film transistor with the current standard value. Comparing the voltage detection value with the voltage standard value, finding the detection value of the voltage parameter in a preset characteristic curve of the thin film transistor, wherein the detection value of the voltage parameter is within the error range of the standard value of the voltage parameter, and then comparing the error range of the current standard value with the current detection value in the characteristic curve.
And step S744, when the current detection value is not in the preset error range of the current standard value, loading a specific voltage at two ends of the thin film transistor, and returning the current detection value to the preset error range of the current standard value.
The detection value is deviated from a preset standard value, when the detection value of the voltage parameter is within the error range of the standard value of the voltage parameter, the error range of the current standard value does not include the current detection value, and the following relations may exist between the detection value of the current parameter and the error range of the current standard value at the moment, but different magnitude relations correspond to different correction measures, which are specifically as follows:
when the current detection value is smaller than the minimum value of the error range of the current standard value, loading forward voltage at two ends of the thin film transistor until the current detection value returns to the error range of the current standard value; the method comprises the steps of finding a voltage standard value corresponding to a voltage detection value in a standard characteristic curve according to the voltage detection value, wherein the voltage detection value only needs to be within the error range of the voltage standard value, then comparing a current detection value corresponding to the voltage detection value with the error range of a current standard value, wherein the current standard value corresponds to the voltage standard value relative to the characteristic curve, and loading forward voltage on two ends of the thin film transistor when the current detection value is smaller than the minimum value of the error range of the current standard value until the current detection value returns to the error range of the current standard value. For example, when the standard voltage value is 0.5V on the characteristic curve of a certain thin film transistor on the OLED display screen, the corresponding standard current value is 0.2A; when the voltage detection value is 0.5V, the corresponding current detection value is 0.15A, that is, the current detection value is smaller than the current standard value, and at this time, a positive voltage needs to be applied to the two ends of the thin film transistor, so that the current detection value returns to the standard value of 0.2A from 0.15A. After the correction of the loading voltage, the thin film transistor recovers to work normally. After the thin film transistor is recovered, the OLED display panel sends a Shut _ Down _ Signal (off Signal) to the SOC, and in this embodiment, the Shut _ Down _ Signal (off Signal) is a Signal for returning to normal by the OLED display panel feeding back to the SOC. After receiving the Shut Down Signal, the SOC no longer sends a repair instruction to the receiving module. When the current detection value is larger than the error range of the current standard value, loading negative voltage at two ends of the thin film transistor until the current detection value returns to the error range of the current standard value; and when the current detection value is larger than the maximum value of the error range of the current standard value, loading negative voltage on two ends of the thin film transistor until the current detection value returns to the error range of the current standard value. For example, when the standard voltage value is 0.5V on the characteristic curve of a certain thin film transistor on the OLED display screen, the corresponding standard current value is 0.2A; when the voltage detection value is 0.5V, the corresponding current detection value is 0.25A, that is, the current detection value is greater than the current standard value, and then a negative voltage needs to be applied across the tft, so that the current detection value returns from 0.25A to the standard value of 0.2A. After the correction of the loading voltage, the thin film transistor recovers to work normally. After the correction of the loading voltage, the thin film transistor recovers to work normally. After the thin film transistor is recovered, the OLED display panel sends a Shut Down Signal to the SOC, and in this embodiment, the Shut Down Signal is a Signal that the OLED display panel feeds back to the SOC to recover to normal. After receiving the Shut Down Signal, the SOC no longer sends a repair instruction to the receiving module.
The invention also proposes a readable storage medium on which the computer program is stored. The computer-readable storage medium may be the Memory 02 in the display terminal of fig. 1, and may also be at least one of a ROM (Read-Only Memory)/RAM (Random Access Memory), a magnetic disk, and an optical disk, where the readable storage medium includes several pieces of information for enabling the display terminal to perform the method according to the embodiments of the present invention.
The specific embodiment of the readable storage medium of the present invention is substantially the same as the embodiments of the OLED display repair method described above, and is not described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An OLED screen repairing method is characterized by comprising the following steps:
acquiring screen information, and judging whether the current screen is an OLED screen or not according to the screen type information in the screen information;
if the current screen is the OLED screen, setting an OLED screen mark;
receiving a starting instruction of an aging production line, and acquiring the current time as the production time;
judging whether the OLED screen mark is set or not;
if the OLED screen flag is set, judging whether the OLED screen meets a preset repair condition or not according to screen storage information in screen information and the production time;
if the OLED screen meets preset repairing conditions, entering a repairing mode, wherein the screen warehousing information comprises warehousing time and warehousing humidity; the step of judging whether the OLED screen meets the preset repair condition according to the screen storage information and the production time in the screen information comprises the following steps:
calculating the difference value between the warehousing time and the production time as the actual warehousing duration;
determining a preset quality guarantee duration corresponding to the storage humidity in a preset mapping data table, and judging whether the actual storage duration is greater than the preset quality guarantee duration or not;
if the OLED screen meets the preset repair condition, the step of setting the repair flag comprises the following steps:
and if the actual storage time is longer than the preset quality guarantee time, setting a repair mark.
2. The method for repairing an OLED panel according to claim 1, wherein the step of entering the repair mode if the OLED panel satisfies a predetermined repair condition includes:
if the OLED screen meets the preset repairing condition, setting a repairing mark;
displaying a prompt window for judging whether to enter a repair mode in a display interface;
judging whether a repair rejection instruction input by a user is received within a preset time after the prompt window is displayed; and if the repair rejection instruction input by the user is not received within the preset time from the display of the prompt window, entering a repair mode.
3. The OLED screen repair method of claim 2, wherein the screen warehousing information includes a warehousing time and a warehousing temperature; the step of judging whether the OLED screen meets the preset repair condition according to the screen storage information and the production time in the screen information comprises the following steps:
calculating the difference value between the warehousing time and the production time as the actual warehousing time length;
determining a preset quality guarantee duration corresponding to the warehousing temperature in a preset mapping data table, and judging whether the actual warehousing duration is greater than the preset quality guarantee duration or not;
if the OLED screen meets the preset repair condition, the step of setting the repair mark comprises the following steps:
and if the actual storage time length is longer than the preset quality guarantee time length, setting a repair mark.
4. The method for repairing an OLED screen according to claim 3, wherein the step of entering the repair mode if the OLED screen meets a preset repair condition comprises:
if the OLED screen meets a preset repairing condition, detecting a characteristic parameter value of a thin film transistor on the OLED screen; the characteristic parameter value includes a current detection value through the thin film transistor and a voltage detection value across the thin film transistor;
acquiring a current standard value corresponding to the voltage detection value according to a preset characteristic curve;
judging whether the current detection value is in an error range corresponding to the current standard value;
and when the current detection value is not in the preset error range of the current standard value, loading a specific voltage at two ends of the thin film transistor to return the current detection value to the preset error range of the current standard value.
5. The OLED panel repairing method according to claim 4, wherein the step of applying a specific voltage across the thin film transistor to return the detected current value to the preset error range of the current standard value when the detected current value is not within the preset error range of the current standard value comprises:
when the current detection value is smaller than the minimum value of the error range of the current standard value, loading forward voltage at two ends of the thin film transistor until the current detection value returns to the error range of the current standard value;
and when the current detection value is larger than the maximum value of the error range of the current standard value, loading negative voltage at two ends of the thin film transistor until the current detection value returns to the error range of the current standard value.
6. The method for repairing an OLED panel according to claim 5, wherein the step of entering the repair mode if the OLED panel satisfies the predetermined repair condition includes:
and the repair state is fed back by controlling an indicator light and/or a sound generating device of the OLED screen.
7. The method for repairing an OLED panel according to claim 6, wherein the step of entering the repair mode if the OLED panel satisfies the predetermined repair condition includes:
and under the condition of successful repair, exiting the repair mode, setting the repair flag to be unset, and entering the aging mode.
8. The OLED panel repair method of claim 7 wherein in the event of a successful repair, exiting repair mode and setting the repair flag to unset, entering aging mode is followed by:
when an instruction of restoring the factory default value is received, detecting whether the repair mark is set;
and if the repair mark is set, sending a factory early warning prompt.
9. A display terminal, characterized in that it comprises a memory, a processor, and a computer program stored on said memory and executable on said processor, said computer program, when executed by the processor, implementing the steps of the OLED screen repair method according to any one of claims 1 to 8.
10. A readable storage medium, characterized in that the readable storage medium has stored thereon a computer program which, when being executed by a processor, carries out the steps of the OLED screen repair method according to any one of claims 1 to 8.
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| KR100458714B1 (en) * | 2001-11-06 | 2004-12-03 | 네오폴리((주)) | A Crystalline Silicon Thin Film Transistor Panel for OELD and a Fabrication Method Thereof |
| US7288330B2 (en) * | 2004-07-01 | 2007-10-30 | Eaastman Kodak Company | High performance white light-emitting OLED device |
| KR20070048852A (en) * | 2005-11-07 | 2007-05-10 | 엘지전자 주식회사 | Display apparatus having panel damage prevention function and pixel moving method thereof |
| CN104537969B (en) * | 2014-12-26 | 2018-02-27 | 深圳创维－Rgb电子有限公司 | The method and device of OLED display screen performance recovery |
| CN205692545U (en) * | 2016-06-17 | 2016-11-16 | 深圳贝力佳电子科技有限公司 | A kind of screen test equipment |
| CN207580508U (en) * | 2017-11-17 | 2018-07-06 | 江华华晶世纪科技有限公司 | A kind of OLED element storage bin |
| KR101873385B1 (en) * | 2018-03-19 | 2018-07-02 | 김동식 | System for recycling of OLED type chamber panel |
| CN111210099A (en) * | 2018-11-21 | 2020-05-29 | 鸿富锦精密电子（成都）有限公司 | Product aging information monitoring method and device and computer readable storage medium |
| CN111028750B (en) * | 2019-12-27 | 2023-05-16 | 深圳创维－Rgb电子有限公司 | Display screen repairing method and device, display terminal and storage medium |
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