Method, medium, device for compatible testing of gamma and flicker

Abstract

The present application relates to the technical field of OLED display module testing, especially to a method, medium and device for testing gamma and flicker in a compatible manner, comprising the following steps: step S1, powering on the product and scanning the code; step S2, lighting the product screen through a jig, and the jig communicates with a lens; step S3, the jig adjusts the gamma according to the lens data; step S4, if the gamma gray scale cannot be adjusted to the preset requirement range within a set number of times, the debugging is exited, an NG is reported, and an alarm is given to inform the operator; if all can be debugged, an OK is reported; step S5, the jig controls the host computer to debug the JEITA flicker; step S6, the jig judges whether the debugged flicker value meets the specification; and step S7, whether the optical of the white picture is qualified. The present application can improve the utilization rate of the color analysis instrument lens, strengthen the flexibility of the production line production, and reduce the production cost.

Description

Technical Field

[0001] This invention relates to the field of OLED display module testing technology, and in particular to methods, media, and equipment for compatible testing of gamma and flicker. Background Technology

[0002] As the application fields of OLED screens continue to expand, screen display effects are also constantly improving. The gamma and JEITA flicker of OLEDs determine the quality of the screen. The requirements for adjusting the gamma and JEITA flicker of OLEDs differ, and different color analyzer models are used. The current adjustment method mainly involves the use of a fixture, a computer, and a CA410 color analyzer lens. The fixture communicates with the CA410, and the generated adjustment data is then uploaded to the computer for storage. The VP410 is a model in the CA410 series. Because it communicates with the fixture via a direct connection, the fixture cannot read the OLED's JEITA flicker value using this method; it must be read by calling its official library through computer software. If the OLED project requires JEITA flicker adjustment, the VP410 cannot be used; only other models of CA410 lenses can be used, which will significantly increase the company's investment costs. Summary of the Invention

[0003] This invention addresses the problems of existing technologies by providing a compatible method, medium, and equipment for testing gamma and flicker, solving the technical bottleneck that the VP410 color analyzer cannot directly read JEITA flicker values ​​from the fixture; it can improve the utilization rate of the color analyzer lens, enhance the flexibility of production line production, and reduce production costs.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This invention provides a method for compatible testing of gamma and flicker, which includes the following steps:

[0006] Step S1: Power on the product and scan the code: Scan the product to generate the file name for the data, and the file name is bound to the product.

[0007] Step S2: Light up the product screen through the fixture. The fixture communicates with the lens. After the fixture is powered on, it connects to the lens through the serial port protocol and initializes the lens. After debugging begins, the fixture switches to the specified screen and sends a test command to the lens. The lens collects optical data according to the command and returns it to the fixture.

[0008] Step S3: The fixture adjusts the gamma according to the lens data: The fixture changes the grayscale brightness of the product according to the gamma adjustment setting of the driver IC;

[0009] Step S4: If the gamma grayscale cannot be adjusted to the preset range within the set number of attempts, exit the debugging process, report NG and alarm the operator; if all adjustments are successful, report OK.

[0010] Step S5: Fixture controls host computer to debug JEITA flicker: After adjusting the gamma gray level, the fixture first disconnects from the lens, and then sends a command to the host computer to connect to the lens. The host computer executes the lens connection and returns a connection success message to the fixture. The fixture switches the lens to flicker mode through the host computer and begins to debug the flicker value of the screen.

[0011] Step S6: The fixture determines whether the flicker value being adjusted meets the specifications. If it does not, the host computer generates an NG data file. If it does, proceed to step S7.

[0012] Step S7: Test whether the optical performance of the white screen is up to standard: After the flicker value is OK, retest the optical specifications of the product under different modes. If OK, generate OK data; if NG, generate NG data and alert the operator.

[0013] The specific steps for the fixture in step S5 to switch the lens to flicker mode via the host computer are as follows:

[0014] Step C1: Disconnect the fixture from the lens;

[0015] Step C2: The fixture controls the connection of the host computer to the lens;

[0016] Step C3: Fixture debugging flicker effect: The fixture sends the test screen corresponding to the sending command to the screen, and the host computer of the control calls the specified function of the VP410's link library to read the flicker and return it to the fixture.

[0017] The step S6, which involves the fixture determining whether the flicker value meets the specifications, further includes the following steps:

[0018] Step C4: The fixture compares the value returned by the host computer with the specifications to see if it meets the specifications;

[0019] Step C5: Fixture-controlled host computer disconnects the lens: After the host computer completes the flicker, it disconnects the lens connection according to the fixture instructions;

[0020] Step C6: Reconnect the lens to the fixture to prepare for the next product.

[0021] The present invention also provides a computer storage medium storing computer instructions, which, when invoked, are used to execute the aforementioned method for compatible testing of gamma and flicker.

[0022] The present invention also provides an electronic device comprising: a processor; and a memory arranged to store computer-executable instructions, which, when executed, cause the processor to perform a method for compatible testing of gamma and flicker as described above.

[0023] The beneficial effects of this invention are:

[0024] This invention cleverly achieves the same VP410 device serving both the fixture (gamma) and the host computer (flicker) at different testing stages by actively disconnecting the fixture from the lens after gamma adjustment and instructing the host computer to take over the VP410 for flicker testing. This overcomes hardware interface limitations and solves the technical bottleneck that the VP410 color analyzer cannot directly read JEITA flicker values ​​from the fixture. It eliminates the need to purchase additional CA410 series color analyzers (such as CA310 / CA410) to support flicker testing; the existing VP410 can be used to adjust both gamma and flicker, effectively avoiding duplicate purchases, saving on production line equipment investment, significantly improving equipment utilization, and reducing enterprise investment costs. It achieves automated, integrated end-to-end testing. The entire process, from product scanning, automatic gamma adjustment, flicker testing to final white screen retesting, is uniformly coordinated and controlled by the fixture, with seamless switching between testing subjects without manual intervention, improving testing efficiency and consistency, and reducing human error.

[0025] This invention is ingeniously designed, enhancing system compatibility and scalability without affecting the normal use of other lens models. The program logic has good versatility and portability, facilitating subsequent adaptation to different driver ICs or the addition of new test items. It improves the flexible manufacturing capabilities of the production line, increases the utilization rate of color analyzer lenses, enhances the flexibility of production line production, and reduces production costs. Attached Figure Description

[0026] Figure 1 This is a flowchart of the compatible testing method for gamma and flicker of the present invention.

[0027] Figure 2 This is a flowchart of the host computer controlling VP410 according to the present invention. Detailed Implementation

[0028] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0029] Example 1

[0030] Embodiment 1 of this application, as Figures 1 to 2 As shown, a method for compatible testing of gamma and flicker includes the following steps:

[0031] Step S1: Power on the product and scan the code: Scan the product to generate the file name for the data, and the file name is bound to the product.

[0032] Step S2: Light up the product screen through the fixture. The fixture communicates with the lens. After the fixture is powered on, it connects to the lens through the serial port protocol and initializes the lens. After debugging begins, the fixture switches to the specified screen and sends a test command to the lens. The lens collects optical data according to the command and returns it to the fixture.

[0033] Step S3: The fixture adjusts the gamma according to the lens data: The fixture changes the grayscale brightness of the product according to the gamma adjustment setting of the driver IC. Specifically, different driver ICs may have different grayscale binding point requirements when adjusting gamma. The program sets the grayscale value according to the driver IC adjustment data requirements, and then sets the target value and control range of the color coordinates for different grayscales (e.g., target value of color coordinate X=0.305±0.006, Y=0.325±0.006), and then sets the gamma value and control range for different grayscales (e.g., the range of target Gamma=2.1±0.02). During the adjustment process, the fixture continuously calls the lens acquisition values ​​to determine whether the optical effect meets the specifications. If it does, the next requirement is adjusted.

[0034] Step S4: If the gamma grayscale cannot be adjusted to the preset required range within the set number of times, exit the debugging, report NG and alarm to notify the operator; if all can be debugged, report OK; for each grayscale debugging, the fixture will set a new parameter value to the driver IC register to change the optical effect of the screen, then call the lens to collect new color coordinates and brightness values, and then determine whether the value is adjusted to the target value range required for the grayscale (such as the target color coordinate value X=0.305±0.006, Y=0.325±0.006, such as the target Gamma=2.1±0.02 range). After the data is collected, it is considered that one debugging is completed. If it is not satisfied, repeat the above steps until the upper limit of the number of debugging times set by the program is reached (such as 50 times);

[0035] Step S5: Fixture controls host computer to debug JEITA flicker: After adjusting the gamma grayscale, the fixture first disconnects from the lens, and then sends a command to the host computer to connect to the lens. The host computer executes the lens connection and returns a connection success message to the fixture. The fixture switches the lens to flicker mode through the host computer and begins to debug the screen flicker value. At this time, the fixture first sends the under-screen debugging code, and then sends a command to test the flicker value to the host computer. The host computer then calls the lens's acquisition function to read the screen flicker value, and then sends the acquired flicker value back to the fixture. The fixture saves the value results and sets the number of loops according to the number of flicker debugging code groups.

[0036] Step S6: The fixture determines whether the flicker value being debugged meets the specifications. If it does not, the host computer generates an NG data file. If it does, proceed to step S7. The fixture saves all the flicker debugging results and then takes out the minimum value and compares it with the card control (e.g., the flicker of the card control should be less than -47).

[0037] Step S7: Test the optical quality of the white screen: After the flicker value is OK, retest the optical specifications of the product in different modes. If OK, generate OK data; if NG, generate NG data and alert the operator. Specifically, the fixture switches between white, black, red, green, and blue screens, and then uses the lens to test the brightness and color coordinates of different screens. The measured values ​​are compared with the control range values ​​to determine the result (e.g., the brightness range of the screen is 600±60, color coordinates X=0.305±0.01, Y=0.325±0.01, and other screens are tested and compared in the same way).

[0038] Specifically, this embodiment of the application, after gamma adjustment is completed, the fixture actively disconnects from the lens and instructs the host computer to take over the VP410 for flicker testing. This ingeniously enables the same VP410 device to serve the fixture (gamma) and the host computer (flicker) at different testing stages, thereby breaking through hardware interface limitations and solving the technical bottleneck that the VP410 color analyzer cannot directly read JEITA flicker values ​​from the fixture. There is no need to purchase other models of CA410 series color analyzers (such as CA310 / CA410, etc.) to support flicker testing. The existing VP410 can be used to complete the adjustment of the two key optical parameters of gamma and flicker, effectively avoiding duplicate purchases, saving production line equipment investment, significantly improving equipment utilization, and reducing enterprise investment costs. It realizes automated and integrated full-process testing. The entire process, from product scanning, automatic gamma adjustment, flicker testing to final white screen retesting, is uniformly coordinated and controlled by the fixture. The testing subject is seamlessly switched in the middle without manual intervention, which improves testing efficiency and consistency and reduces human operation errors.

[0039] The embodiments of this application are ingeniously designed, enhancing system compatibility and scalability without affecting the normal use of other lens models. The program logic has good versatility and portability, facilitating subsequent adaptation to different driver ICs or the addition of new test items, improving the flexible manufacturing capabilities of the production line, increasing the utilization rate of color analyzer lenses, enhancing the flexibility of production line production, and reducing production costs.

[0040] In Embodiment 1 of this application, the specific steps of switching the lens to flicker mode via the host computer in step S5 are as follows:

[0041] Step C1: Disconnect the fixture from the lens;

[0042] Step C2: The fixture controls the connection of the host computer to the lens;

[0043] Step C3: Fixture debugging flicker effect: The fixture sends the test screen corresponding to the sending command to the screen, and the host computer calls the specified function of the VP410 (VP410 is a model in the CA410 series of color analyzers) link library to read the flicker and return it to the fixture.

[0044] The step S6, which involves the fixture determining whether the flicker value meets the specifications, further includes the following steps:

[0045] Step C4: The fixture compares the value returned by the host computer with the specifications to see if it meets the specifications;

[0046] Step C5: Fixture-controlled host computer disconnects the lens: After the host computer completes the flicker, it disconnects the lens connection according to the fixture instructions;

[0047] Step C6: Reconnect the lens to the fixture to prepare for the next product.

[0048] Example 2

[0049] Embodiment 2 of this application provides a computer storage medium storing computer instructions, which, when invoked, are used to execute the aforementioned method for compatible testing of gamma and flicker.

[0050] Example 3

[0051] According to Embodiment 3 of this application, an electronic device is provided, comprising: a processor; and a memory arranged to store computer-executable instructions, which, when executed, cause the processor to perform a method for compatible testing of gamma and flicker as described above.

[0052] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present invention without departing from the scope of the present invention are within the scope of the present invention.

Claims

1. A method for compatible testing of gamma and flicker, characterized in that, Includes the following steps: Step S1: Power on the product and scan the code: Scan the product to generate the file name for the data, and the file name is bound to the product. Step S2: Light up the product screen through the fixture. The fixture communicates with the lens. After the fixture is powered on, it connects to the lens through the serial port protocol and initializes the lens. After debugging begins, the fixture switches to the specified screen and sends a test command to the lens. The lens collects optical data according to the command and returns it to the fixture. Step S3: The fixture adjusts the gamma according to the lens data: The fixture changes the grayscale brightness of the product according to the gamma adjustment setting of the driver IC; Step S4: If the gamma grayscale cannot be adjusted to the preset range within the set number of attempts, exit the debugging process, report NG and alarm the operator; if all adjustments are successful, report OK. Step S5: Fixture controls host computer to debug JEITA flicker: After adjusting the gamma gray level, the fixture first disconnects from the lens, and then sends a command to the host computer to connect to the lens. The host computer executes the lens connection and returns a connection success message to the fixture. The fixture switches the lens to flicker mode through the host computer and begins to debug the flicker value of the screen. Step S6: The fixture determines whether the flicker value being adjusted meets the specifications. If it does not, the host computer generates an NG data file. If it does, proceed to step S7. Step S7: Test whether the optical performance of the white screen is up to standard: After the flicker value is OK, retest the optical specifications of the product in different modes. If OK, generate OK data; if NG, generate NG data and alarm to notify the operator. The specific steps for the fixture in step S5 to switch the lens to flicker mode via the host computer are as follows: Step C1: Disconnect the fixture from the lens; Step C2: The fixture controls the connection of the host computer to the lens; Step C3: Fixture debugging flicker effect: The fixture sends the test screen corresponding to the sending command to the screen, and the host computer of the control calls the specified function of the VP410's link library to read the flicker and return it to the fixture.

2. The method for compatible testing of gamma and flicker according to claim 1, characterized in that, The step S6, which involves the fixture determining whether the flicker value meets the specifications, also includes the following steps: Step C4: The fixture compares the value returned by the host computer with the specifications to see if it meets the specifications; Step C5: Fixture-controlled host computer disconnects the lens: After the host computer completes the flicker, it disconnects the lens connection according to the fixture instructions; Step C6: Reconnect the lens to the fixture to prepare for the next product.

3. A computer storage medium storing computer instructions, which, when invoked, are used to execute a method for compatible testing of gamma and flicker as described in any one of claims 1-2.

4. An electronic device, wherein, The electronic device includes: a processor; and a memory arranged to store computer-executable instructions, which, when executed, cause the processor to perform a method for compatible testing of gamma and flicker as described in any one of claims 1-2.

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