Method and device for measuring display parameters

Abstract

The invention provides a method and device for measuring the response time of a display, and the method comprises the steps: setting a patch switch on a key, and marking the initial operation time T0 of the display; converting the picture of the display from black to white, carrying out photoelectric conversion, collecting and recording the end time T1 when the picture of the display is converted from black to white; collecting a pulse type signal of the display; the response time of the display is calculated according to the initial operation time T0 and the end time T1, and the refresh rate of the display is obtained according to the pulse type signal of the display. Through simultaneous starting of the photoelectric conversion module and the button and final representation in a voltage form, the response time of the display after the button is pressed can be tested. And displaying the response time of the screen in a specific numerical value. Technical parameters of the response time of the screen become measurable and have traceability.

Description

Technical Field

[0001] The invention relates to the technical field of aviation display measurement, and in particular to a method and device for measuring display parameters. Background Art

[0002] The response time of a display refers to the time it takes for a display to switch from one state to another. The response time test is an important indicator for evaluating a system (including software and network hardware implementation). By measuring the response time of the system after receiving a request, the speed and availability of the system can be determined. The response time between two states of the display and the refresh rate of the display can be captured through photoelectric conversion transistors and key switches. The shorter the response time, the less the user feels when watching dynamic images. The sum of the rise time and fall time from the start of the key operation to the black and white screen switch of the display is called the response time of the display. Summary of the invention

[0003] In view of this, the present invention provides a method and device for measuring display parameters, so as to achieve the purpose of making the technical parameters of the response time of the screen measurable.

[0004] The present invention provides the following technical solution: a method for measuring the response time of a display, comprising:

[0005] Set a patch switch on the button and mark the initial operation time T0 of the display;

[0006] The screen of the display is changed from black to white, and the photoelectric conversion is collected and the end time T1 when the screen of the display is changed from black to white is recorded;

[0007] Collect the pulse signal of the display;

[0008] The response time of the display is calculated according to the initial operation time T0 and the end time T1, and the refresh rate of the display is obtained according to the pulse signal of the display.

[0009] Furthermore, the screen of the display is changed from black to white, and a photosensitive element is set to make the oscilloscope present a curve that first drops and then rises.

[0010] Furthermore, when the curve is stable, the pulse signal of the display is collected.

[0011] Further, the corresponding time of the display is the difference between the end time T1 and the initial operation time T0.

[0012] Furthermore, the refresh rate of the display is the frequency of the pulse signal of the display.

[0013] The present invention also provides a device for measuring the response time of a display, which is used to execute the method for measuring the response time of a display.

[0014] Further, the device for measuring the display response time includes:

[0015] Power supply and display terminal;

[0016] A touch button switch connected to the power supply and the display terminal;

[0017] A circuit amplifier connected to the power supply and the display terminal;

[0018] The acquisition conversion component is connected to the circuit amplifier and is used to acquire parameters of the display end.

[0019] Furthermore, the collection and conversion components include:

[0020] The photosensitive acquisition module is used to collect the voltage value change when the display screen changes from black to white;

[0021] The photoelectric conversion module is connected to the photosensitive collection module and the circuit amplifier, and is used to receive the voltage value change and perform a photoelectric conversion operation to form a curve that first decreases and then increases.

[0022] Compared with the prior art, the beneficial effects achieved by at least one of the above technical solutions adopted by the present invention include at least: by starting the photoelectric conversion module and the key at the same time, and finally manifesting it in the form of voltage, the response time of the display after the key is pressed can be tested. The response time of the screen is presented in a specific value. The technical parameters of the response time of the screen become measurable and traceable. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 is a schematic diagram of a flow chart of an embodiment of the present invention;

[0025] Figure 2 Schematic diagram of the device structure of an embodiment of the present invention. DETAILED DESCRIPTION

[0026] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] like Figure 1 As shown, an embodiment of the present invention provides a method for measuring the response time of a display, comprising:

[0029] Set a patch switch on the button and mark the initial operation time T0 of the display;

[0030] The screen of the display is changed from black to white, and the photoelectric conversion is collected and the end time T1 when the screen of the display is changed from black to white is recorded;

[0031] Collect the pulse signal of the display;

[0032] The response time of the display is calculated according to the initial operation time T0 and the end time T1, and the refresh rate of the display is obtained according to the pulse signal of the display.

[0033] As the requirements for the refresh rate and response time of the display are getting higher and higher, reaching the ms level. The switching of the screen cannot be seen with the naked eye, nor can it be directly measured with an instrument. Therefore, the present invention provides a method for measuring the response time of the display, which can be tested by starting the photoelectric conversion module and the key at the same time, and finally manifesting it in the form of voltage, so that the response time of the display after the key is pressed can be presented in a specific value. The technical parameters of the response time of the screen become measurable and traceable.

[0034] The screen of the display is changed from black to white, and the photosensitive element is set to make the oscilloscope show a curve that first falls and then rises. When the curve is stable, the pulse signal of the display is collected.

[0035] When the photosensitive element changes from black to white on the display screen, the voltage value will increase, which will appear as a curve that first rises and then falls on the oscilloscope.

[0036] The response time of the display in the embodiment of the present invention is the difference between the end time T1 and the initial operation time T0. The refresh rate of the display is the frequency of the pulse signal of the display.

[0037] The following is described with reference to a specific embodiment:

[0038] A patch switch is attached to the button. When the switch is turned on, a voltage change can be generated, which is used to mark the initial operation time of the display on the oscilloscope, recorded as T0;

[0039] The photosensitive element changes from black to white through the display screen, which will cause the voltage value to increase, showing a curve that rises and then falls on the oscilloscope;

[0040] When the curve is stable, the refresh rate of the display will be triggered stably, presenting a pulse signal;

[0041] Before the pulse signal is stably generated, the switching instruction from the black screen to the white screen of the display has been completed, which is recorded as T1;

[0042] Get the display response time as T1-T0.

[0043] The frequency of obtaining the ball pulse signal is the refresh rate of the display.

[0044] like Figure 2 As shown, the present invention also provides a device for measuring the response time of a display, which is used to execute the above method for measuring the response time of a display.

[0045] Specifically, the device for measuring the display response time includes:

[0046] Power supply and display terminal;

[0047] A touch button switch connected to the power supply and the display terminal;

[0048] A circuit amplifier connected to the power supply and the display terminal;

[0049] The acquisition conversion component is connected to the circuit amplifier and is used to acquire parameters of the display end.

[0050] Furthermore, the acquisition conversion components include:

[0051] The photosensitive acquisition module is used to collect the voltage value change when the display screen changes from black to white;

[0052] The photoelectric conversion module is connected to the photosensitive collection module and the circuit amplifier, and is used to receive the voltage value change and perform a photoelectric conversion operation to form a curve that first decreases and then increases.

[0053] The device for measuring the response time of a display of the present invention can accurately collect the response time and refresh rate of the display from the key operation to the screen change, and can test the display with a refresh rate of not less than 60Hz and a response time of not less than 5ms, so that the response time and refresh rate of the screen are traceable.

[0054] The above is only a specific embodiment of the present invention, and cannot be used to limit the scope of the invention. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the scope of protection of the patent of the present invention, should still fall within the scope of this patent. In addition, the technical features of the present invention can be freely combined with each other, with each other, and with each other.

Claims

1. A method for measuring the response time of a display, characterized in that: include: Set a patch switch on the button and mark the initial operation time T0 of the display; The screen of the display is changed from black to white, and the photoelectric conversion is collected and the end time T1 when the screen of the display is changed from black to white is recorded; Collect the pulse signal of the display; The response time of the display is calculated according to the initial operation time T0 and the end time T1, and the refresh rate of the display is obtained according to the pulse signal of the display.

2. The method for measuring the response time of a display according to claim 1, characterized in that: The display screen is changed from black to white, and by setting the photosensitive element, the oscilloscope shows a curve that first drops and then rises.

3. The method for measuring the response time of a display according to claim 2, characterized in that: When the curve is stable, the pulse signal of the display is collected.

4. The method for measuring the response time of a display according to claim 3, characterized in that: The corresponding time of the display is the difference between the end time T1 and the initial operation time T0.

5. The method for measuring the response time of a display according to claim 4, characterized in that: The refresh rate of the display is the frequency of the pulse signal of the display.

6. A device for measuring the response time of a display, used to execute the method for measuring the response time of a display, characterized in that: The method for measuring the response time of a display is the method for measuring the response time of a display according to any one of claims 1 to 5.

7. The device for measuring the response time of a display according to claim 6, characterized in that: The device for measuring the response time of a display comprises: Power supply and display terminal; A touch button switch connected to the power supply and the display terminal; A circuit amplifier connected to the power supply and the display terminal; The acquisition conversion component is connected to the circuit amplifier and is used to acquire parameters of the display end.

8. The device for measuring the response time of a display according to claim 7, characterized in that: The acquisition and conversion component includes: The photosensitive acquisition module is used to collect the voltage value change when the display screen changes from black to white; The photoelectric conversion module is connected to the photosensitive collection module and the circuit amplifier, and is used to receive the voltage value change and perform a photoelectric conversion operation to form a curve that first decreases and then increases.

Images