CN116543673A - Display data output testing device and method - Google Patents
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- CN116543673A CN116543673A CN202310653478.3A CN202310653478A CN116543673A CN 116543673 A CN116543673 A CN 116543673A CN 202310653478 A CN202310653478 A CN 202310653478A CN 116543673 A CN116543673 A CN 116543673A
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- 238000012360 testing method Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000002159 abnormal effect Effects 0.000 claims description 27
- 239000004973 liquid crystal related substance Substances 0.000 claims description 4
- 238000010998 test method Methods 0.000 claims description 4
- 230000005856 abnormality Effects 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 description 16
- 239000000758 substrate Substances 0.000 description 6
- 238000013145 classification model Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007488 abnormal function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000010801 machine learning Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003062 neural network model Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012706 support-vector machine Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- 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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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/12—Test circuits or failure detection circuits included in a display system, as permanent part thereof
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2370/00—Aspects of data communication
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The present disclosure relates to a display data output test apparatus and method, the apparatus comprising: the device comprises an input interface, a control unit and a prompt unit, wherein the input interface and the prompt unit are both connected with the control unit; the input interface is used for being connected with the display data output end so as to receive the display data output by the display data output end; the prompting unit comprises: the display screen comprises a screen display prompting element, a green screen prompting element, a splash screen prompting element and a black screen prompting element; the prompting unit is used for outputting prompting information used for representing the display state of the display data output end. The signal output capability of the display data output end can be tested on the premise of not using the display equipment, the test cost is reduced, and the test efficiency is improved.
Description
Technical Field
The present disclosure relates to the field of display testing, and in particular, to a display data output testing apparatus and method.
Background
The display device generally includes a display data output for generating and outputting a display data signal, and a presentation device for receiving and displaying the display data signal. In the development and manufacturing process of the display device, the display data output end or the signal output capability of the video output interface of the display data output end is required to be tested so as to confirm that the display device is normal in function or locate a fault source under the condition that the display device is aged and has abnormal functions. In the related art, the main test mode is to connect the display data output end with the display device such as a display or a television, so as to observe the display effect of the display or the television, so as to determine whether the signal output capability of the display data output end or the external video output interface is abnormal. However, with the above-described test method, when a large number of display data output terminals are tested at the same time, a large number of developing devices and connection wires are required as test tools. This means an increase in test costs and equipment maintenance costs and can create a certain safety hazard. In addition, in a production line requiring high-speed operation, the process of observing and determining the display effect by connecting the display data output ends one by one with the display device is complicated, and the test efficiency is low.
Disclosure of Invention
The disclosure aims to provide a display data output testing device and method, which are used for solving the technical problems of high cost and low testing efficiency when testing a display data output end or a video transmission interface thereof.
In a first aspect, the present disclosure provides a display data output testing apparatus, the apparatus comprising:
the device comprises an input interface, a control unit and a prompt unit, wherein both the input interface and the prompt unit are connected with the control unit; wherein, the liquid crystal display device comprises a liquid crystal display device,
the input interface is used for being connected with the display data output end so as to receive the display data output by the display data output end;
the prompting unit comprises: the display screen comprises a screen display prompting element, a green screen prompting element, a splash screen prompting element and a black screen prompting element;
the prompting unit is used for outputting prompting information used for representing the display state of the display data output end.
Optionally, the control unit includes: a processor and a signal receiver; the processor is connected with the signal receiver, and the signal receiver is connected with the input interface;
the signal receiver is used for acquiring the display data signals received by the input interface;
the processor is used for determining the display state according to the display data signals acquired by the signal receiver.
Optionally, the abnormal display state includes: a screen display state, a green screen state, a screen flashing state and a black screen state;
the processor is used for determining the abnormal display state of the display data output end according to the waveform of the display data signal acquired by the signal receiver.
Optionally, the prompting unit is configured to perform, according to the abnormal display state, abnormal prompting through the screen display prompting element, the green screen prompting element, the splash screen prompting element or the black screen prompting element.
Optionally, the prompting unit further includes: displaying a normal prompting element;
the normal display prompting element is used for keeping a normal bright state under the condition that the display state is determined to be a normal display state.
Optionally, the apparatus further includes: the output interface is connected with the signal receiver;
and the display interface is used for being connected with the display equipment so as to transmit the display data output by the display data output end to the display equipment for display.
Optionally, the apparatus further includes: the switch group comprises a reset key;
the reset key is connected with the control unit and used for resetting the connection between the display data output end and the control unit; the method comprises the steps of,
and resetting the prompting unit.
Optionally, the apparatus further includes: the power supply unit, the power supply unit with the control unit is connected, the switch group still includes: a power switch;
the power switch is connected with the control unit and used for controlling the on-off of the power supply connection between the power supply unit and the control unit.
Optionally, the apparatus further includes: the base plate, input interface, the control unit, the suggestion unit, power supply unit, still go out the interface with the switch group six all set up in on the base plate.
In a second aspect, the present disclosure provides a display data output testing method, which is applied to the display data output testing device provided in the first aspect of the present disclosure, and includes:
receiving a display data signal sent by a display data output end;
determining a display state of the display data output end according to the waveform of the display data signal;
outputting prompt information for representing the display state;
wherein the display state includes: a normal display state and an abnormal display state, the abnormal display state including: a splash screen state, a green screen state, a splash screen state and a black screen state.
Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the beneficial effects that:
the display data output testing device provided by the present disclosure includes: the device comprises an input interface, a control unit and a prompt unit, wherein the input interface and the prompt unit are both connected with the control unit; the input interface is used for being connected with the display data output end so as to receive the display data output by the display data output end; the prompting unit comprises: the display screen comprises a screen display prompting element, a green screen prompting element, a splash screen prompting element and a black screen prompting element; the prompting unit is used for outputting prompting information used for representing the display state of the display data output end. The display data output testing device and the display data output testing method can test the signal output capacity of the display data output end on the premise of not using display equipment, reduce testing cost and improve testing efficiency.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:
FIG. 1 is a schematic diagram of a display data output testing apparatus according to an exemplary embodiment;
FIG. 2 is a schematic diagram of another display data output testing apparatus according to the embodiment shown in FIG. 1;
fig. 3 is a flowchart illustrating a display data output test method according to an exemplary embodiment.
Detailed Description
Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.
In this regard, the present disclosure proposes a display data output test device, specifically as follows:
fig. 1 is a schematic structural diagram of a display data output test apparatus according to an exemplary embodiment, and as shown in fig. 1, the apparatus 100 includes: an input interface 110, a control unit 120 and a presentation unit 130, both the input interface 110 and the presentation unit 130 being connected to the control unit 120.
Illustratively, the input interface 110 is configured to connect to a display data output for receiving display data output by the display data output. Specifically, the input interface 110 may be a video transmission interface such as VGA (Video Graphics Array ) interface, DVI (Digital Visual Interface, digital video interface), HDMI (High Definition Multimedia Interface Cable, high definition multimedia interface line) or DP (DisplayPort). In one possible implementation, the input interface 110 may include two connectors, namely the video transmission interface female connector and the video transmission interface male connector. Both of which are connected to the control unit 120. Thus, if the display data output end includes the male head of the video transmission interface, the display data output end can be plugged into the female seat of the video transmission interface of the input interface 110; otherwise, if the display data output end includes the video transmission interface female socket, the display data output end can be plugged into the video transmission interface male head of the input interface 110. After the input interface 110 is plugged into a display data output comprising a video transmission interface, the display data output is capable of transmitting a display data signal to the input interface 110.
Illustratively, the prompting unit 130 may include: a flower screen cue element 131, a green screen cue element 132, a splash screen cue element 133, and a black screen cue element 134. The prompting unit 130 is configured to output prompting information for representing a display state of the display data output terminal. The above-mentioned screen display prompt element 131, green screen prompt element 132, screen flashing prompt element 133 and screen blackout prompt element 134 may be prompt lamps, and in case of determining that the display state of the display data output end is abnormal, the above-mentioned prompt lamps may output prompt information that the display state of the display data output end is abnormal in a flashing manner. For example, in the case where it is determined that the display state of the display data output terminal is the splash screen state, the splash screen presentation element 131 may be caused to blink as the presentation information. Alternatively, in one possible implementation manner, the above-mentioned screen display prompting element 131, green screen prompting element 132, splash screen prompting element 133 and black screen prompting element 134 may output prompting information through the same display device, and the display device may output different colors or characters according to the display state of the display data output end. For example, in the case where it is determined that the display state of the display data output terminal is a splash screen state, the display device may be caused to output yellow or the letter "splash screen" as the prompt information. The display state is determined by the control unit 120, and after the display state is determined, the control unit 120 sends the determination structure to the presentation unit 130 for display by an electrical signal.
In summary, the display data output test device provided in the embodiment of the disclosure includes: the device comprises an input interface, a control unit and a prompt unit, wherein the input interface and the prompt unit are both connected with the control unit; the input interface is used for being connected with the display data output end so as to receive the display data output by the display data output end; the prompting unit comprises: the display screen comprises a screen display prompting element, a green screen prompting element, a splash screen prompting element and a black screen prompting element; the prompting unit is used for outputting prompting information used for representing the display state of the display data output end. The signal output capability of the display data output end can be tested on the premise of not using the display equipment, the test cost is reduced, and the test efficiency is improved.
Fig. 2 is a schematic structural view of another display data output test device according to fig. 1, and as shown in fig. 2, the control unit 120 may include: a processor 121 and a signal receiver 122. Wherein the processor 121 is connected to the signal receiver 122, and the signal receiver 122 is connected to the input interface 110. The processor 121 may be a processor chip with data processing capabilities as well as output storage capabilities. The signal receiver 122 may be an IC (Integrated Circuit ) with display data signal receiving capability.
Illustratively, the signal receiver 122 is configured to obtain the display data signal received by the input interface 110. The processor 121 is configured to determine the display state according to the display data signal acquired by the signal receiver 121. Specifically, the abnormal display state may include: a splash screen state, a green screen state, a splash screen state and a black screen state. The processor 121 is configured to determine an abnormal display state of the display data output terminal according to the waveform of the display data signal acquired by the signal receiver 122. It will be appreciated that the display data signal output by the display data output terminal is an analog electrical signal, and the display data signal may exhibit different waveforms in different display states. In actual use, reference waveforms corresponding to different abnormal display states may be recorded in advance in the processor 121. In the testing process, the processor 121 may acquire the waveform of the display data signal received by the signal receiver 122 and compare the waveform with a preset reference waveform, and if the similarity between the waveform and the reference waveform is greater than a certain threshold, for example 90%, then determine that the display data output end is in an abnormal display state corresponding to the reference waveform. Alternatively, in one possible implementation, a machine learning model for waveform classification, for example, a support vector machine model or a neural network model, may be trained in advance by a large amount of waveform data, and the trained waveform classification model may be provided in the processor 121. In the test process, the waveform data of the received display data signal can be used as the input of the waveform classification model to obtain the classification output by the waveform classification model, so as to determine the corresponding abnormal display state.
In one possible embodiment, in addition to outputting the determination result of the abnormal display state through the prompt unit 130, the control unit 120 may also record and store the abnormal display state and the duration of the abnormal display state to form a fault log.
For example, after determining the abnormal display state of the display data output terminal in the above-described manner, an abnormal prompt may be performed by the prompt unit 131 through the flower screen prompt element 131, the green screen prompt element 132, the flash screen prompt element 133, or the black screen prompt element 134 according to the abnormal display state. The prompting unit 131 may further include: a normal prompting element 135 is displayed. The display normal prompting element 135 is used for keeping a normal bright state in the case that the display state is determined to be a normal display state. The normal display indicator 135 may be an indicator light, and in case that the display state of the display data output end is determined to be normal, the indicator light may output the indication information of the normal display state of the display data output end in a normally-on manner. It should be noted that, the normal display state may also be determined according to the waveform of the display data signal output by the display data output end in a waveform comparison or waveform classification model, and the specific determination manner is similar to the determination manner of the abnormal display state described above, and will not be repeated here.
In addition, as shown in fig. 2, in a possible embodiment, the apparatus 100 may further include: also shown are interface 140, switch set 150, power supply unit 160, and backplane 170. The input interface 110, the control unit 120, the prompting unit 130, the power supply unit 160, the output interface 140 and the switch set 150 are all disposed on the bottom plate 170. The substrate 170 may be a non-insulating substrate or an insulating substrate, and the substrate 170 is preferably a PCB (Printed Circuit Board ) consisting of an insulating substrate, connecting wires and pads for mounting soldered electronic components, having the dual function of a conductive trace and an insulating substrate. The connection among the input interface 110, the control unit 120, the prompting unit 130, the power supply unit 160, the output interface 140 and the switch set 150 is realized by conductive lines arranged on a PCB.
Illustratively, the egress interface 140 is coupled to the signal receiver 122. The output interface 140 is used for connecting with the display device to transmit the display data output by the display data output end to the display device for display. It will be appreciated that the display data output test apparatus 100 provided in the present disclosure can be directly connected to a display data output terminal, and receive an output signal of the display data output terminal to determine a display state thereof. On this basis, after the output interface 140 is plugged into the display device, the apparatus 100 is made to be a medium for transmitting display data between the display data output terminal and the display device. Therefore, the device 100 can judge the display state of the display data output end under the condition that the display data output end is connected with the display equipment, and the application scene of the device 100 is increased.
Illustratively, similar to the input interface 110, the output interface 140 may also include two connectors, namely the video transmission interface female connector and the video transmission interface male connector. Both of which are connected to the control unit 120. Thus, if the display device includes a male video transmission interface, the display device can be plugged into the female video transmission interface of the output interface 140; otherwise, if the display device includes the video transmission interface female socket, the male head of the video transmission interface of the output interface 140 can be plugged into the female socket. After the further interface 140 is plugged into a male connector of a display device comprising a video transmission interface, the further interface 140 is capable of transmitting a display data signal to the display device.
For example, the switch set 150 may include a reset key 151. The reset key 151 is connected to the control unit 120, and is used for resetting the connection between the display data output end and the control unit 120; and resetting the cue unit 130. The reset key 151 may be respectively connected to the signal receiver 122 and the processor 121 included in the control unit 120, and reset the connection between the display data output end and the control unit 120 and the current output prompt message of the prompt unit 130 by controlling the on-off of the signal receiver 122 and the input interface 110 and the on-off of the processor 121 and the prompt unit 130. In addition, the power supply unit 160 may be a power outlet, which may be a USB (Universal Serial Bus ), or a battery holder, which may be a battery holder in which a No. 5 battery or a No. 7 battery may be placed, for example. The power supply unit 160 may be connected to the control unit 120 and the presentation unit 130, respectively, or may be connected to the presentation unit 130 through the control unit 120 to supply power to the control unit 120 and the presentation unit 130. In this case, the switch group 150 may further include: a power switch 152. The power switch 152 may be connected to the control unit 120 and the prompting unit 130, respectively, or connected to the prompting unit 130 through the control unit 120, so as to control the on-off of the power supply connection between the power supply unit 160 and the control unit 120 and the prompting unit 130.
In summary, the display data output test device provided in the embodiment of the disclosure includes: the device comprises an input interface, a control unit and a prompt unit, wherein the input interface and the prompt unit are both connected with the control unit; the input interface is used for being connected with the display data output end so as to receive the display data output by the display data output end; the prompting unit comprises: the display screen comprises a screen display prompting element, a green screen prompting element, a splash screen prompting element and a black screen prompting element; the prompting unit is used for outputting prompting information used for representing the display state of the display data output end. The signal output capability of the display data output end can be tested on the premise of not using the display equipment, the test cost is reduced, and the test efficiency is improved.
Fig. 3 is a flowchart illustrating a display data output testing method according to an exemplary embodiment, as shown in fig. 3, applied to the above-mentioned display data output testing apparatus of fig. 1 or 2, the method including:
step 201, a display data signal sent by a display data output terminal is received.
Step 202, determining the display state of the display data output terminal according to the waveform of the display data signal.
Wherein the display state includes: a normal display state and an abnormal display state, the abnormal display state including: a splash screen state, a green screen state, a splash screen state and a black screen state.
Step 203, outputting prompt information for representing the display state.
In summary, the display data output test method provided by the embodiment of the present disclosure can receive the display data signal sent by the display data output end; determining a screen display state, a green screen state, a splash screen state and a black screen state of the display data output end according to the waveform of the display data signal; and outputting prompt information for representing the display state. The signal output capability of the display data output end can be tested on the premise of not using the display equipment, the test cost is reduced, and the test efficiency is improved.
The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.
In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.
Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.
Claims (10)
1. A display data output testing apparatus and method, the apparatus comprising:
the device comprises an input interface, a control unit and a prompt unit, wherein both the input interface and the prompt unit are connected with the control unit; wherein, the liquid crystal display device comprises a liquid crystal display device,
the input interface is used for being connected with the display data output end so as to receive the display data output by the display data output end;
the prompting unit comprises: the display screen comprises a screen display prompting element, a green screen prompting element, a splash screen prompting element and a black screen prompting element;
the prompting unit is used for outputting prompting information used for representing the display state of the display data output end.
2. The apparatus according to claim 1, wherein the control unit comprises: a processor and a signal receiver; the processor is connected with the signal receiver, and the signal receiver is connected with the input interface;
the signal receiver is used for acquiring the display data signals received by the input interface;
the processor is used for determining the display state according to the display data signals acquired by the signal receiver.
3. The apparatus of claim 2, wherein the abnormal display state comprises: a screen display state, a green screen state, a screen flashing state and a black screen state;
the processor is used for determining the abnormal display state of the display data output end according to the waveform of the display data signal acquired by the signal receiver.
4. The apparatus according to claim 3, wherein the prompting unit is configured to prompt an abnormality through the flower screen prompting element, the green screen prompting element, the splash screen prompting element, or the black screen prompting element according to the abnormality display state.
5. The apparatus of claim 1, wherein the prompting unit further comprises: displaying a normal prompting element;
the normal display prompting element is used for keeping a normal bright state under the condition that the display state is determined to be a normal display state.
6. The apparatus according to any one of claims 1-5, further comprising: the output interface is connected with the signal receiver;
and the display interface is used for being connected with the display equipment so as to transmit the display data output by the display data output end to the display equipment for display.
7. The apparatus of claim 6, wherein the apparatus further comprises: the switch group comprises a reset key;
the reset key is connected with the control unit and used for resetting the connection between the display data output end and the control unit; the method comprises the steps of,
and resetting the prompting unit.
8. The apparatus of claim 7, wherein the apparatus further comprises: the power supply unit, the power supply unit with the control unit is connected, the switch group still includes: a power switch;
the power switch is connected with the control unit and used for controlling the on-off of the power supply connection between the power supply unit and the control unit.
9. The apparatus of claim 8, wherein the apparatus further comprises: the base plate, input interface, the control unit, the suggestion unit, power supply unit, still go out the interface with the switch group six all set up in on the base plate.
10. A display data output test method, characterized by being applied to the display data output test device according to any one of claims 1 to 9, comprising:
receiving a display data signal sent by a display data output end;
determining a display state of the display data output end according to the waveform of the display data signal;
outputting prompt information for representing the display state;
wherein the display state includes: a normal display state and an abnormal display state, the abnormal display state including: a splash screen state, a green screen state, a splash screen state and a black screen state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310653478.3A CN116543673A (en) | 2023-06-02 | 2023-06-02 | Display data output testing device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310653478.3A CN116543673A (en) | 2023-06-02 | 2023-06-02 | Display data output testing device and method |
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| CN116543673A true CN116543673A (en) | 2023-08-04 |
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| CN202310653478.3A Pending CN116543673A (en) | 2023-06-02 | 2023-06-02 | Display data output testing device and method |
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