TWI693818B - Data sorting conversion device, display test system and test method thereof - Google Patents

Abstract

A data sorting conversion device and a display test system and a test method thereof are provided. The device and method are based on the received original video test signals conforming to a first display data sorting specification, and are reordered into data conforming to a second display data sorting specification. The data is then output to a preset display that conforms to the second display data sorting specification, so that the result of the display under test at the test site can be conditionally reproduced on the preset display, wherein the result cannot pass the display test program. It can be applied to the mapping conversion of various displays, and the condition at the test site is eliminated by the near end, thereby saving the time cost required.

Description

Display test of data sorting conversion device and application data sorting conversion device System and test method

The present invention relates to a sorting conversion of video data, and more particularly to a data sorting conversion device and a display test system and method using the data sorting conversion device.

Many functional tests, display capability tests, final tests and other items need to be checked during the display manufacturing process, so that the display that becomes the final product can meet various specifications.

In the manufacturing process of the display, after the display is mounted on the display panel, the display function test is usually performed by the display test equipment to verify whether the display panel and related control modules can correctly display various test screens. The display test equipment is used to output various pre-loaded video test signals, so that the display under test can be displayed on the corresponding screen, and then inspected by the tester or other equipment (such as visual inspection or imaging device imaging) Check) to complete the display function test of the monitor.

The abnormal test results of the display may be attributed to the possible error of the video test signal of the display test equipment or the damage of the function of the display to be tested. In order to solve these problems, it is often necessary for the display test equipment maintenance personnel to visit the production line to understand the situation, so This leads to a time-consuming and costly maintenance process.

An object of the present invention is to save the cost required for the maintenance procedure of the display test equipment.

Another object of the present invention is to solve the problem that the near-end display test equipment cannot obtain the object to be tested for remote use.

Still another object of the present invention is to provide better usability of display test equipment.

In order to achieve the above object and other objects, the present invention provides a data sorting conversion device, including: an input side, an output side, and a processing module. The input side is used to receive an original video test signal output from a display testing device and having a first display data sorting specification. The output side is used to output a mapped video test signal for display by a preset display with a second display data sorting specification. The processing module is coupled to the input side and the output side, the processing module temporarily stores the data in the original video test signal, and reorders the temporary data according to the second display data sorting specification accepted by the default display The stored data is converted into the mapped video test signal to be provided to the output side.

In one embodiment of the present invention, the first display data sorting specification is a display data sorting specification accepted by a display under test, and the display testing device is used to perform a display test procedure on the display under test.

In one embodiment of the present invention, the display under test cannot display the mapped video test signal.

In one embodiment of the invention, the processing module includes: a field programmable logic gate array and a video memory coupled to the field programmable logic gate array, the video memory system is used to temporarily store the original video test signal data of.

In one embodiment of the present invention, the field programmable logic gate array has: a receiving unit, a transmission unit, a memory control unit, and a video processing unit. The memory control unit is coupled to the receiving unit and the video memory, so that the video memory temporarily stores the data in the original video test signal. The video processing unit is coupled to the memory control unit and the transmission unit, so that the video data stored in the video memory is sequentially drawn according to the second display data sorting specification, and the mapped video test signal is generated for transmission to The transmission unit.

In one embodiment of the present invention, the video memory system is used for the original video test signal to be temporarily stored in a decentralized manner by the memory control unit. The video memory system is a double data rate synchronous dynamic random access memory.

In order to achieve the above object and other objects, the present invention further proposes a display testing system using a data sorting conversion device, including: a display testing device and a data sorting conversion device. The display test device is used to generate an original video test signal with a first display data sorting specification. The data sorting conversion device is used to perform a test adjustment procedure for a default display that conforms to a second display data sorting specification. The data sorting conversion device is coupled to the display testing device to receive the original video test signal, according to the The second display data sorting specification accepted by the preset display reorders the data of the original video test signal and converts it into a mapped video test signal for the preset display to perform the test adjustment procedure.

In one embodiment of the present invention, the display testing device is configured to perform a display test procedure for a plurality of displays to be tested that meet the first display data sorting specification.

In one embodiment of the present invention, the display testing device is based on the first display data sorting specification, and cannot perform the display test procedure on the default display that meets the second display data sorting specification.

To achieve the above and other objectives, the present invention further proposes a display test method using a data sorting conversion device, which includes: receiving an original video test signal that conforms to a first display data sorting specification; and temporarily storing the original video test signal in the original video test signal Data; reorder the temporarily stored data according to a second display data sorting specification to generate a mapped video test signal; and provide the mapped video test signal to a default display for a test adjustment process.

In an embodiment of the present invention, the received original video test signal is used for a display under test to perform a display test procedure, and the original video test signal in the display test procedure prevents the display under test from being able to Passed by qualified.

In an embodiment of the invention, the second display data sorting specification is adjusted accordingly according to the selected default display.

According to this, in the embodiment of the present invention, the received original video test signal that meets the first display data sorting specification is reordered into data with the second display data sorting specification, and then output to the second display conforming The preset display of the data sorting specification makes the condition of the remote display under test failed to pass the display test procedure, and can be reproduced on the preset display conditionally, and can also be applied to the mapping conversion of various displays. To achieve the purpose of eliminating the remote condition from the near end, saving the cost of the maintenance procedure of the display test equipment and improving the convenience of using the display test equipment.

100: data sorting conversion device

102: input side

104: output side

110: processing module

112: Field programmable logic gate array

1121: receiving unit

1122: Transmission unit

1123: Memory control unit

1124: Video processing unit

114: Video memory

200: display test equipment

300: preset display

S1: original video test signal

S2: Mapping video test signal

S100~S414: Steps

[Figure 1(a)] is a schematic diagram of one of two different display data sorting specifications.

[Figure 1(b)] is a schematic diagram of another of two different display data sorting specifications.

[FIG. 2] It is a schematic diagram of a display testing system in an embodiment of the invention.

[FIG. 3] It is a schematic diagram of a data sorting conversion device in an embodiment of the invention.

[FIG. 4] It is a flowchart of a display testing method of an application data sorting conversion device in an embodiment of the invention.

In order to fully understand the purpose, features and effects of the present invention, the following specific examples and the accompanying drawings are used to make a detailed description of the present invention, as follows: In this article, the term "one" or "one" is used to describe signals, units, components, structures, devices, modules, systems or equipment. This is just for convenience of explanation, and provides a general meaning to the scope of the present invention. Therefore, unless clearly stated otherwise, such description should be understood to include one or at least one, and the singular also includes the plural.

In this article, the words "include, include, have" or any other similar meanings are not limited to the elements listed in this article, but may include signals that are not explicitly listed but are Units, components, structures, devices, modules, systems or equipment are usually inherent in other elements or steps.

In this article, the words "first" or "second" and similar ordinal numbers are used to distinguish or refer to the same or similar signals, components, or operations, and do not necessarily imply such letters Number, component, or sequence of operations. It should be understood that, under certain circumstances or configurations, ordinal words may be used interchangeably without affecting the implementation of the present invention.

In the embodiment of the present invention, the matching situation of the data sorting conversion device and the display test equipment is exemplified. The data sorting conversion device and the display test equipment may be two separate devices, or a configuration manner in which the data sorting conversion device is installed on the display test equipment in a detachable or non-detachable manner. In the embodiment of the present invention, the data sorting conversion device and the display test equipment are two independent devices as examples.

Please refer to FIG. 1(a) and FIG. 1(b), which are schematic diagrams of two different display data sorting specifications. The two display data sorting specifications correspond to the two types of display examples of A and B described below. Data sorting specifications.

Display test equipment usually stores a variety of display data sorting specifications for mapping to displays with different display data sorting specifications, which can be used by production line testers to choose according to the specifications of the display to be tested on the production line. Display test procedures are performed separately for each display to be tested. In terms of testing to support a flat-panel display with a resolution of 4K, up to 8,294,400 (3840*2160) pixel blocks (each display point contains three RGB sub-pixel blocks), when displaying a combination of these pixel blocks When an instantaneous test screen is displayed, the display data of the instantaneous test screen must be reordered according to the display data sorting specifications accepted by the flat panel display and then input to the flat panel display for the flat panel display to correctly display the instantaneous test frame .

For example, the sorting specification for type A display data is: from left to right, from top to bottom, one by one, the data number is sorted from "0000001" in the upper left corner to "8294400" in the lower right corner, correspondingly, on the upper right of the flat display The data number corresponding to the corner pixel block is "0003840", and the number of rows arranged from the top to bottom pixel blocks is 2160. At this time, the display data of the instantaneous test screen It is passed the display data to the flat panel display sequentially from left to right and from top to bottom. In another example, the sorting specification for type B display data is as follows: the pixel blocks of the flat panel display are divided into left and right areas, and the left area is sequentially filled with the display data before proceeding to the right area, and the data number is from the left area "0000001" in the upper left corner of the screen is sorted to "4147200" in the lower right corner of the left area. Correspondingly, the data number corresponding to the pixel block in the upper right corner of the left area of the flat display is "0001920"; on the other hand, the right In the area, the data number is sorted from "4147201" in the upper left corner of the right area to "8294400" in the lower right corner of the right area. Correspondingly, the data number corresponding to the pixel block in the upper right corner of the right area of the flat display is " 4149120". Therefore, the mapping rules are different. Without adjustment of the display data sorting specifications, the flat panel display will not be able to correctly display the instantaneous test screen (for example, the screen is divided and replaced), and it is also displayed on the dynamic screen. in this way.

Next, please refer to FIG. 2, which is a schematic diagram of a display testing system according to an embodiment of the invention. After the display data output specification based on the display test equipment is selected by the tester at the far end, in order to reproduce the test situation encountered by the tester at the near end, and in order to configure only a small number of preset displays or even only at the near end For the purpose of configuring a single default display, the data sorting conversion device 100 must be matched at the near end. As mentioned above, in the example of FIG. 2, the data sorting conversion device 100 is a device independent of the display testing device 200. However, the test system may also enable the display test device 200 to carry the data sorting conversion device 100.

As shown in FIG. 2, the display test system includes: a display test device 200 and a data sorting conversion device 100. The display testing device 200 is coupled to the data sorting and conversion device 100, and the default display 300 is coupled to the data sorting and conversion device 100. The display testing device 200 can select the same as the selection of the remote tester through the settings of the near-end personnel (for example, all are the first display data sorting specifications), This allows the display testing device 200 to generate the original video test signal S1 with the first display data sorting specification.

That is, the first display data sorting specification is a display data sorting specification used by a remote tester to detect the display under test (not shown), and is also a display data sorting specification accepted by the display under test to allow The display test equipment performs a display test procedure on the display to be tested.

The original video test signal S1 is transmitted to the data sorting conversion device 100 for subsequent processing. The data sorting conversion device 100 pre-stores a second display data sorting specification, and the second display data sorting specification has the display data sorting specification accepted by the default display 300 located at the near end. That is, the second display data sorting specification of the data sorting conversion device 100 can determine the sorting data content of the second display data sorting specification according to the display data sorting specification accepted by the default display 300 owned by the near end , That is, it will not be restricted by the sorting data of the remote display under test.

The data sorting conversion device 100 reorders the sorted data content of the original video test signal S1 according to the second display data sorting specification and converts it into a mapped video test signal S2 with the second display data sorting specification. In summary, the aforementioned display under test cannot display the screen data of the mapped video test signal S2, because the aforementioned display under test can only accept the first display data sorting specification. In addition, based on the first display data sorting specification, the display testing device 200 cannot enable the default display 300 that meets the second display data sorting specification to perform the aforementioned display test procedure.

According to this, in the display test procedure, for the test data (that is, the original video test signal S1) input by the remote tester to the display under test, under the display test system disclosed in the embodiment of the present invention, let the input The test data of the display to be tested is converted to input to the default display The data of 300 can be reproduced on the preset display 300 without being limited to the display to be tested. In other words, when the remote tester performs the display test procedure on the display under test, if the original video test signal S1 causes the display under test to fail the test in the display test procedure, the near-end person can output through the display test device 200 The same original video test signal S1 to data sorting conversion device 100, and then reproduce the situation encountered by the remote tester on the default display 300, and then can determine whether the display test device 200 is normal, or based on the reproduced display error Therefore, further adjustments are required to complete the test adjustment procedure, and then the remote display test device 200 can be updated or replaced to resolve the error condition.

Next, please refer to FIG. 3, which is a schematic diagram of a data sorting conversion device according to an embodiment of the invention. The data sorting conversion device 100 includes an input side 102, an output side 104, and a processing module 110. The input side 102 is used to receive the original video test signal S1 output from the display test equipment with the first display data sorting specification, and the output side 104 outputs the mapped video for display by an external default display with the second display data sorting specification Test signal S2. The processing module 110 is coupled to the input side 102 and the output side 104, and is used to temporarily store the data in the original video test signal S1, and according to the second display data sorting specification accepted by the default display 300 (see FIG. 2), restart The sorted temporary data is converted into a mapped video test signal S2 provided to the output side 104.

The processing module 110 may use a field programmable logic gate array (Field Programmable) Gate Array, FPGA), but not limited to this. The example of FIG. 3 takes the field programmable logic gate array as an example. The processing module 110 includes a field programmable logic gate array 112 and a video memory 114. The video memory 114 is coupled to the field programmable logic gate array 112 and can be used to temporarily store data in the original video test signal S1.

The field programmable logic gate array 112 has a receiving unit 1121, a transmission unit 1122, a memory control unit 1123, and a video processing unit 1124. The receiving unit 1121 receives the original video test signal S1, and the transmission unit 1122 outputs the mapped video test signal S2. The memory control unit 1123 is coupled to the receiving unit 1121 and the video memory 114. The memory control unit 1123 is used to control the data content of the received original video test signal S1 and store the data in the video memory 114.

The video processing unit 1124 is coupled to the memory control unit 1123 and the transmission unit 1122. In accordance with the second display data sorting specification, the video processing unit 1124 sequentially obtains video data from the video memory 114 through the memory control unit 1123, and correspondingly generates a mapped video test signal S2 for transmission to the transmission unit 1122.

On the other hand, when the resolution of the first display data sorting specification is less than the resolution of the second display data sorting specification, the display data of the original video test signal S1 cannot fill the display data vacancies of the mapped video test signal S2 At this time, the video processing unit 1124 can fill in the mapped video test signal S2 so that the output display data of the mapped video test signal S2 can fill the resolution requirements under the second display data sorting specification. The video processing unit 1124 may be filled with picture data such as black or white.

Further, the video memory 114 can be used for temporarily storing the original video test signal S1 by the memory control unit 1123 in a distributed manner. For example, the video memory may be Double-Data-Rate Synchronous Dynamic Random Access Memory (DDR).

Next, please refer to FIG. 4, which is a flow chart of a display testing method of an application data sorting conversion device in an embodiment of the invention. In the test process, the received original video test signal S1 is used For the display under test to perform a display test procedure, and the original video test signal S1 is in the display test procedure, so that the display under test cannot be passed. The method includes:

Step S100. The data sorting conversion apparatus 100 receives the original video test signal S1 that is the same as the remote display testing device 200 and meets the first display data sorting specification.

Step S200, temporarily storing the data in the original video test signal S1.

Step S300: Reorder the temporarily stored video data according to the second display data sorting specification to generate a mapped video test signal S2.

Step S400: Provide a mapped video test signal S2 to the near-end default display 300 for the test adjustment process.

Step S410: Determine whether the preset display 300 has abnormal display. When “Yes”, step S412 is entered, and the near-end personnel process according to abnormal conditions, that is, update the display test device 200 (for example, firmware update) or replace the remote display test device 200. When "No", go to step S414, it is determined that there is no abnormality in the remote display test equipment 200 "the display test equipment is not abnormal".

In this way, the examples of the embodiments of the present invention, through the setting of different display data sorting specifications and the conversion of video test signals, can allow the near-end personnel to quickly and effectively deal with the abnormalities detected by the remote end, so that the remote end waits The monitor cannot be qualified to pass the display test program, and can be reproduced conditionally (when the monitor test equipment has abnormal conditions) on the near-end preset monitor. It can also be applied to the mapping conversion of various monitors (provided Wider error elimination processing capabilities of near-end personnel) to achieve the purpose of eliminating remote conditions by the near-end, thereby saving time and cost.

The present invention has been disclosed in the above with preferred embodiments, but those skilled in the art should understand that this embodiment is only used to depict the present invention and should not be interpreted as limiting the scope of the present invention. Note It is to be noted that all changes and replacements equivalent to this embodiment should be included in the scope of the present invention. Therefore, the scope of protection of the present invention shall be subject to those defined in the scope of patent application.

100: data sorting conversion device

200: display test equipment

300: preset display

S1: original video test signal

S2: Mapping video test signal

Claims (12)

A data sorting conversion device includes: an input side for receiving an original video test signal with a first display data sorting specification output from a display testing device; and an output side for outputting a mapped video test signal, A preset display externally having a second display data sorting specification for display; and a processing module coupled to the input side and the output side, the processing module temporarily stores the data in the original video test signal, and According to the second display data sorting specification accepted by the default display, the temporarily stored data is reordered and converted into the mapped video test signal to be provided to the output side, wherein the original video test signal and the mapped type The video test signal is for displaying the same number of pixel blocks. The data sorting conversion device according to claim 1, wherein the first display data sorting specification is a display data sorting specification accepted by a display under test, and the display testing device is used to perform a display test procedure on the display under test . The data sorting conversion device according to claim 2, wherein the display under test cannot display the mapped video test signal. The data sorting conversion device according to claim 1, wherein the processing module includes: a field programmable logic gate array and a video memory coupled to the field programmable logic gate array, the video memory system is used to temporarily store the original Information in the video test signal. The data sorting conversion device according to claim 4, wherein the field programmable logic gate array has: A receiving unit receives the original video test signal; a transmission unit outputs the mapped video test signal; a memory control unit couples the receiving unit and the video memory to temporarily store the video memory Data in the original video test signal; and a video processing unit, coupled to the memory control unit and the transmission unit, sequentially obtaining video data stored in the video memory according to the second display data sorting specification, and The mapped video test signal is generated for transmission to the transmission unit. The data sorting conversion device as described in claim 5, wherein the video memory system is used to temporarily store the original video test signal in a distributed manner by the memory control unit, and the video memory system is double data rate synchronous dynamic random access Memory. A display test system using a data sorting conversion device includes: a display testing device that generates an original video test signal having a first display data sorting specification; and a data sorting conversion device for conforming to a second display data A preset display of the sorting specification performs a test adjustment procedure. The data sorting conversion device is coupled to the display testing device to receive the original video test signal, and re-based on the second display data sorting specification accepted by the preset display Sort the data of the original video test signal into a mapped video test signal for the default display to perform the test adjustment procedure, wherein the total number of the original video test signal and the mapped video test signal is the same Blocks of pixels are displayed. The display test system according to claim 7, wherein the display test device is configured to perform a display test procedure for a plurality of displays to be tested that meet the first display data sorting specification. The display test system according to claim 7, wherein the display test device is based on the first display data sorting specification, and cannot perform the display test procedure on the preset display that meets the second display data sorting specification. A display test method using a data sorting conversion device includes: receiving an original video test signal that conforms to a first display data sorting specification; temporarily storing the data in the original video test signal; and regenerating according to a second display data sorting specification Sort the temporarily stored data to generate a mapped video test signal; and provide the mapped video test signal to a default display for a test adjustment process, wherein the original video test signal and the mapped video test The signal is used for displaying the same number of pixel blocks. The display test method according to claim 10, wherein the received original video test signal is used for a display under test to perform a display test procedure, and the original video test signal in the display test procedure is to make the pending The test monitor cannot be passed. The display test method according to claim 10, wherein the second display data sorting specification is adjusted correspondingly according to the selected default display.

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