TWI574548B - Batch display device test structures and methods - Google Patents

Description

Batch display device test architecture and method thereof

The present invention relates to a batch display device test architecture and method thereof, and more particularly to a display device test architecture and method for saving test space, reducing assembly cost, and speeding up testing.

The display is a common and common object in the current life, and its application level is quite extensive. For example, the display of the display can be seen in the computer, digital signboard or electronic menu. The demand for such a large number of applications and the market is greatly aggravated. The pressure on production.

Please refer to FIG. 1 , which is a schematic diagram of a current batch test display device. The display device has a large number of complete devices in the test or development stage, and the current method is to connect the circuit board of the display device to an external signal source. And a display screen (PANEL), so that a display screen can only be used by one circuit board, which requires a large number of display screens during mass production or development, which will require greater testing or production. Space, on the other hand, the display screen has to be repeatedly assembled and disassembled with the circuit board, which also takes a lot of time, which will lead to an increase in assembly costs and slow down the test.

Further extensions to understand the current practice, because each test can only be tested on a single circuit board, so in order to check the reliability of the product, it requires a lot of testing, which will consume a lot of time and Manpower, in addition, for the display ring that constructs the serial function The environment needs more space, and it is even more difficult to construct a real test environment for debugging, which will also reduce the reliability of the product.

The object of the present invention is to provide a fast and convenient batch test of a display device through a test architecture and a method thereof, thereby improving the lack of current technology and inconvenience.

To achieve the above object, the present invention provides a batch display device test architecture and method thereof for simultaneously testing a circuit board in a plurality of display devices, the test architecture comprising: a display screen; and a multimedia mixing device, the multimedia mixing device The plurality of circuit boards are connected to the multimedia mixing device, and the circuit boards are externally input with a signal source to generate and output a multimedia signal, and the multimedia mixing device mixes the multimedia signals and outputs the multimedia signals. The display screen causes the display screen to generate a plurality of divided blocks, so that each divided block displays a picture of a corresponding multimedia signal.

In an embodiment of the present invention, the structure of the multimedia mixing device includes: a processing circuit for processing the multimedia signals input by the circuit boards and mixing and outputting them; and a setting circuit coupled to the processing circuit for setting An output interface and a multimedia format; a plurality of input ports coupled to the processing circuit for connection to the circuit boards; and at least one output port coupled to the processing circuit for connection to the display screen.

In an embodiment of the invention, the position of the divided block can be arbitrarily replaced and adjusted by the operation of the setting circuit.

In an embodiment of the invention, the test architecture further includes a multimedia generator, and the multimedia generator is respectively connected to the circuit boards to output the same signal source.

In an embodiment of the invention, the test architecture further includes a multimedia generator connected to a circuit board, and the remaining circuit boards are connected in series to output the same signal source.

Continuing the above, the steps of the test method include: S1. connecting the circuit board to be tested, the multimedia mixing device and the display screen; S2. externally inputting a signal source to the circuit board to generate and output a multimedia signal to the multimedia mixing device S3. The multimedia mixing device receives the multimedia signal, mixes it and outputs it to the display screen, and causes the display screen to generate a plurality of divided blocks, so that each divided block displays a corresponding multimedia signal screen; S4. Look at each partition on the display screen to judge whether the circuit board is normal.

The above step S2 further includes: S21. setting an output interface and a multimedia format through the multimedia mixing device.

The above step S3 further includes: S31. Adjusting the position of the moving partition by the multimedia mixing device according to the requirements of use.

The above step S1 further includes: S11. Connect the circuit board to be tested to the multimedia generator, and select separate connections or separate serials as appropriate.

The above step S2 further includes: S22. The multimedia generator outputs a signal source to the circuit board to generate the same multimedia signal, and outputs the same multimedia signal to the multimedia mixing device.

Through the above technical means, a plurality of circuit boards can be tested at the same time through a display screen, and the analog serial connection function can also be completed through a display screen, thereby saving test space, reducing assembly cost and speeding up testing. Wait for the purpose.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

1‧‧‧ display screen

11‧‧‧Divided blocks

2‧‧‧Multimedia mixing device

21‧‧‧Processing Circuit

22‧‧‧Set circuit

23‧‧‧ Input埠

24‧‧‧ Output埠

3‧‧‧Circuit Motherboard

4‧‧‧Multimedia generator

S1‧‧‧Connect the circuit board, multimedia mixing device and display screen to be tested

S11‧‧‧Connect the circuit board to be tested with the multimedia generator, and select separate connections or separate serials as appropriate

S2‧‧‧ externally input a signal source to the circuit board to generate and output a multimedia signal to the multimedia mixing device

S21‧‧‧Setting the output interface and multimedia format through the multimedia mixing device

S22‧‧‧ The source of the output signal from the multimedia generator is sent to the circuit board to generate the same multimedia signal and output to the multimedia mixing device

The S3‧‧‧ multimedia mixing device receives the multimedia signal, mixes it and outputs it to the display screen, and causes the display screen to generate a plurality of divided blocks, so that each divided block displays a corresponding multimedia signal

S31‧‧‧ Adjust the position of the moving partition through the multimedia mixing device according to the requirements of use

S4‧‧‧Workers judge whether the circuit board is normal by watching each partition on the display screen

1 is a schematic diagram of a current batch test display device; FIG. 2 is a schematic diagram of a test structure of a batch display device according to an embodiment of the present invention; FIG. 3 is a flow chart of a test method for a batch display device according to the present invention; FIG. 5 is a flow chart corresponding to the test method of the batch display device of FIG. 4; FIG. 6 is a schematic diagram of the use of the test architecture of the batch display device according to another embodiment of the present invention; 7 is a schematic diagram of the use of the test architecture of the batch display device according to another embodiment of the present invention; FIG. 8 is a flow chart corresponding to the test method of the batch display device of FIG. 6 and FIG. 7.

In the following embodiments, the same or similar component symbols represent the same or similar components. In addition, the directional terms mentioned in the following embodiments, for example, up, down, left, right, front or back, etc., refer only to the direction of the additional drawing, and therefore, the directional term used is used for explanation, and It is not intended to limit the invention.

2 is a schematic diagram of a test architecture of a batch display device according to an embodiment of the present invention. As can be seen from the figure, the main architecture is a display screen 1 and a multimedia mixing device 2, which are connected together. The setting of the multimedia mixing device 2 can make a plurality of divided blocks 11 appear on the display screen 1, and the multimedia mixing device 2 has a plurality of input ports 23 for connecting the objects to be tested, and the output port 24 is for connecting the display screens. 1. The processing circuit 21 adds the multimedia signal from the object to be tested. The mixture is output to the display screen 1, and the interface and format of the mixed output are set by the setting circuit 22. The divided block 11 mentioned above is determined by the setting circuit 22 to determine the number of divisions.

Please refer to FIG. 3 , which is a flowchart of a method for testing a batch display device according to the present invention. The test method includes the following steps: S1 connects a circuit board to be tested, a multimedia mixing device, and a display screen; and S2 inputs a signal source from an external source. The main board of the circuit generates and outputs a multimedia signal to the multimedia mixing device; the S3 multimedia mixing device receives the multimedia signal and mixes it and outputs the same to the display screen, and causes the display screen to generate a plurality of divided blocks, so that each of the divided blocks A screen of the corresponding multimedia signal is displayed; the S4 operator judges whether the circuit board is normal by viewing each of the divided blocks on the display screen. The above step S1 is a pre-action for testing, and the circuit board, the multimedia mixing device and the display screen are connected through the physical signal line to communicate with each other. The above step S2 is the first step of testing. The signal source is externally supplied to the circuit board, and after processing the circuit board, a multimedia signal is generated and output to the multimedia mixing device for subsequent operations. The above step S3 is the second step of testing. When the multimedia signal is transmitted to the multimedia mixing device, the multimedia mixing device will mix the multimedia signals and output a signal to the display screen, and the signal will cause the display screen to be generated. Multiple partitions, usually for convenience, each partition will be the same size, and each partition will display a corresponding multimedia signal. The above step S4 is the last step of the test. At this time, there are a plurality of divided blocks on the display screen. According to the externally input signal source, each divided block displays the same or different pictures, and the user When you are able to view the working status of multiple circuit boards at the same time through a display screen.

4 is a schematic diagram of the use of a test architecture of a batch display device according to an embodiment of the present invention. In this figure, it can be seen that the multimedia mixing device 2 is connected to a plurality of circuit boards 3, and each circuit board 3 is different. There are different external input signal sources, which is a basic use mode. The operator can arbitrarily adjust the position of each partition block 11 through the setting circuit 22 according to the actual use requirements. For example, this batch may The tested circuit board 3 is connected to the multimedia mixing device 2 in an arbitrary order when connected, so the order of appearing on the display screen 1 at the first time is displayed in a preset order (the preset ordering can be any ordering, Here, the order of input 埠23 is taken as an example. However, because of the requirements on the job or test check, it is helpful to use the same type or related output images together to facilitate the overall use. The setting circuit 22 adjusts the position of the divided block 11 to a moderate degree, which contributes to the overall use.

Please refer to FIG. 5 , which is a flow chart corresponding to the test method of the batch display device of FIG. 4 . The actual use mode can be known from the previous figure, so there will be some changes in the actual process steps. The steps are as follows: S1 connects the circuit board to be tested, the multimedia mixing device and the display screen; S2 externally inputs a signal source to the circuit board to generate and output a multimedia signal to the multimedia mixing device; S21 sets the output through the multimedia mixing device Interface and multimedia format; The S3 multimedia mixing device receives the multimedia signal and mixes it to output to the display screen, and causes the display screen to generate a plurality of divided blocks, so that each divided block displays a corresponding multimedia signal picture; S31 according to the usage requirements, The position of the moving partition is adjusted by the multimedia mixing device; the S4 operator judges whether the circuit board is normal by viewing each divided block on the display screen. The above steps S1 to S4 have been described above, and therefore will not be described again, and are only explained herein for S21 and S31. The above step S21 is set according to the number of objects to be tested (circuit board) in a batch test, thereby determining the number of partitions, and the number of partitions depends on the usage requirements and the number of multimedia hybrid devices that can be supported. The output interface and multimedia format are set according to the specifications of the display screen, such as resolution or color. In the above step S31, the adjustment is performed according to the requirements of use, and the divided blocks displayed on the display screen are moved or replaced, for example, the same or related pictures are adjusted together for subsequent use.

6 is a schematic diagram (1) of using a test architecture of a batch display device according to another embodiment of the present invention. In this embodiment, there is also a display screen 1, a multimedia mixing device 2, and a plurality of circuit boards 3, but the difference is There is a multimedia generator 4, and the multimedia generator 4 is connected to each circuit board 3. Thus, under such a structure, the external signal source of each circuit board 3 is the same, if in the partition block. There is a different reaction on the 11th, and it can be reasonably guessed that the circuit board 3 corresponding to the partition block 11 is problematic, and such a method contributes to a large number and rapid batch test.

Please refer to FIG. 7 , which is a schematic diagram of the use of a test architecture of a batch display device according to another embodiment of the present invention. In this embodiment, the display screen 1 and the multimedia mixing device 2 are also provided. Circuit board 3, but the difference is that there is one more multimedia generator 4, the multimedia generator 4 is connected to one circuit board 3, and the other circuit boards 3 are connected in series with the first circuit board 3, so that This approach has two consequences. The first result is like the batch test described above, and the second result is the output of the concatenation function. This is done by simulating and constructing a real test environment to detect errors. The architecture can display the serial connection function through a display screen 1 to save the test space.

Please refer to FIG. 8 , which is a flow chart corresponding to the test method of the batch display device of FIG. 6 and FIG. 7 . The method of actual use can be known from the above two drawings, so there will be some slight steps in the actual process. The steps are as follows: S1 connects the circuit board to be tested, the multimedia mixing device and the display screen; S11 connects the circuit board to be tested with the multimedia generator, and selects separate connections or separate serials as the case may be; S2 is externally connected Input a signal source to the circuit board to generate and output a multimedia signal to the multimedia mixing device; S21 sets the output interface and multimedia format through the multimedia mixing device; S22 outputs the signal source to the circuit board by the multimedia generator to generate the same The multimedia signal is output to the multimedia mixing device; the S3 multimedia mixing device receives the multimedia signal and mixes it to output to the display screen, and causes the display screen to generate a plurality of divided blocks, so that each divided block displays a corresponding multimedia signal. Screen; S4 operator judges by viewing each partition on the display screen Road board is normal.

The above steps S1 to S4 and S21 have been described above, and therefore will not be described again, and are only explained herein for S11 and S22. In the above step S11, the common external signal source is sent through the multimedia generator to perform batch test or analog screen output test, and the common connection or the serial connection is selected according to the actual use requirement. In the above step S22, the common external signal source is sent through the multimedia generator, and the batch test or the analog image output serial connection is selected, and any work can be completed on the same display screen and output to the multimedia. The mixing device is used for subsequent use.

In summary, it can be understood that through the architecture and method disclosed by the present invention, a display screen 1 can be used to implement testing of a plurality of circuit boards 3, and practical problems and various application changes are envisaged to achieve savings. Test space, reduce assembly costs, and speed up testing.

Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. The scope of protection is subject to the definition of the scope of the attached patent application.

1‧‧‧ display screen

11‧‧‧Divided blocks

2‧‧‧Multimedia mixing device

21‧‧‧Processing Circuit

22‧‧‧Set circuit

23‧‧‧ Input埠

24‧‧‧ Output埠

Claims (6)

A batch display device test architecture for simultaneously testing a circuit board in a plurality of display devices, the test architecture comprising: a display screen; a multimedia mixing device, the multimedia mixing device being coupled to the display screen, the circuit boards and the circuit boards The multimedia mixing device is connected, and each of the circuit boards generates and outputs a multimedia signal by externally inputting a signal source, and the multimedia mixing device mixes the multimedia signals and outputs the multimedia signals to the display screen, so that the display screen generates multiple segments. a block, wherein each of the divided blocks displays a picture of a corresponding multimedia signal; and a multimedia generator connected to one of the circuit boards of the circuit boards, and the remaining circuit boards are connected in series Sending a common external signal source to the circuit boards through the multimedia generator. The structure of the multimedia display device as described in claim 1, wherein the multimedia mixing device comprises: a processing circuit for processing the multimedia signals input by the circuit boards and mixing and outputting the same; a circuit coupled to the processing circuit for setting an output interface and a multimedia format; a plurality of input ports coupled to the processing circuit for connection to the circuit boards; and at least one output port coupled to the processing circuit for the display Screen link. The batch display device test architecture according to claim 2, wherein the position of the divided block can be arbitrarily replaced and adjusted by the operation of the setting circuit. A batch display device testing method for simultaneously testing a circuit board in a plurality of display devices, the steps of the testing method comprising: S1. connecting the circuit board to be tested, the multimedia mixing device and the display screen; S11. The circuit board is connected to the multimedia generator, the multimedia generator is connected to one of the circuit boards, and the remaining circuit boards are connected in series; S2. externally inputting a signal source to the circuit board by the multimedia generator So that each circuit board generates and outputs a multimedia signal to the multimedia mixing device; S3. The multimedia mixing device receives the multimedia signal and mixes it and outputs it to the display screen, and causes the display screen to generate a plurality of divided blocks for each segmentation. The block displays a picture of the corresponding multimedia signal; S4. The operator judges whether the circuit board is normal by viewing each of the divided blocks on the display screen. The method for testing a batch display device according to claim 4, wherein the step S2 further comprises: S21. setting an output interface and a multimedia format through the multimedia mixing device. The method for testing a batch display device according to claim 4, wherein the step S3 further comprises: S31. adjusting the position of the moving partition by the multimedia mixing device according to the requirement of use.