CN1258174A - Color test system for display device - Google Patents
Color test system for display device Download PDFInfo
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- CN1258174A CN1258174A CN 98125778 CN98125778A CN1258174A CN 1258174 A CN1258174 A CN 1258174A CN 98125778 CN98125778 CN 98125778 CN 98125778 A CN98125778 A CN 98125778A CN 1258174 A CN1258174 A CN 1258174A
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Abstract
A colour test system for testing the colour uniformity of display is composed of a pick-up head for reading the output of colours on screen, a display and a colour tester for receiving and recording the output of pick-up head, analyzing the colour uniformity and displaying the result. When a display is testd, the position of next screen region to be tested is displayed in the screen pattern and cursor mode by the tester based on predefined test route, so operator can easily move the pick-up head on screen correctly for sequentially testing each regions.
Description
The present invention relates to a kind of color test system for display device, refer in particular to a kind of color test system for display device along a default test path test color strength variance.
Color monitor need utilize color tester (color analyzer) to check and proofreaies and correct its color output specification in the process of producing, and the colouring intensity deviation that detects whole display device screen.
The read head (probe) of general color tester is provided with the circular test section that a diameter is about 2 centimeters, is used for receiving light to carry out color analysis.And the detection method of common colouring intensity deviation is to be controlled the read head of color tester by the tester, the major part that read head can be moved past on the display device screen apace is regional, and makes the color output intensity of each point on the color tester energy reading displayed device screen.This method of testing has two shortcomings: the first, and therefore the speed that staff moves is wayward, is easy to when double reading, and the zone overlaps or discontinuous phenomenon to make reading of reading for twice, thereby the quality of influence test; The second, test one 15 " display device screen, approximately need 200 to read the whole screen that just can contain display, therefore very expend time in and manpower.
Therefore main purpose of the present invention is to provide a kind of color test system of color monitor, can go out a test path according to the test result analysis of data display equipment, required the counting of reading of display of test significantly reduced, and still can detect underproof display effectively, and show with dynamic cursor and the position in each zone to be measured on the test path to make the tester read head be moved on to the color output intensity that test position correct on the display device screen reads each point with suitable speed.
The invention provides a kind of color test system, be used for testing the color uniformity of a display device screen, this system comprises: a read head, the color output that is used for reading this display device screen; One display unit; One color tester is used for receiving and write down the output of this read head and analyzes the color uniformity of this display device screen according to this; Wherein when this display of test, this color tester is according to a default test path, the position in the next zone to be measured of this display device screen is presented on this display unit with a vernier, this vernier is used for assisting a user correctly to move this read head on this display device screen, so that this read head is read the color output in each the to be measured zone of this display device screen on this test path.
Fig. 1 is the schematic diagram of color test system of the present invention.
Fig. 2 is the embodiment of the screen of Fig. 1 display.
The zone of ten colouring intensity deviation maximums on Fig. 3 displayed map 2 screens.
Fig. 4 is the test path on Fig. 1 display unit.
Fig. 5 shows the schematic diagram of dynamic cursor on Fig. 4 test path.
Symbol description among the figure
10 color test systems, 12 screens
14 read heads, 16 display unit
18 color testers, 20 test paths
See also Fig. 1, Fig. 1 is the schematic diagram of color test system 10 of the present invention.Color test system 10 is the color uniformitys that are used for testing the screen 12 of a display 11, and it includes a read head 14, is used for the color output of reading displayed device screen 12; One display unit 16; And color tester 18 output that is used for receiving and writing down read head 14, analyze the color uniformity of display device screen 12 again according to it, and analysis result is shown on the display unit 16.
When color when output of test display device screen 12, color tester 18 is according to a default test path 20, and graphic and dynamic cursor is presented on the display unit 16 with a static screen with the position in next zone to be measured in the screen 12.Test path 20 is obtained according to the following step:
(1) screen 12 is divided into a plurality of measure-alike test zones, the size of test zone is then set according to the area of read head 14;
(2) measure a plurality of and the screen 12 of display 11, to obtain the color output of each screen 12 all test zone with escope;
(3) calculate the mean value of each test zone color output according to the measurement result of a plurality of displays, and select the maximum and minimum test zone of a plurality of mean values; And
(4) test zone of selecting is linked up according to a predetermined way, to form test path 20.
After test path 20 is set, display unit 16 is with this test path 20 of the graphic demonstration of a static screen, then color tester 18 reads required time for reading according to read head 14 at every turn, set the speed that vernier moves on screen, and the tester can be according to screen the graphic and position of vernier on screen 12 come mobile read head 14 so that read head 14 correctly reads the color output in screen 12 each zone to be measured on test path 20.
See also Fig. 2.Fig. 2 is the embodiment of the screen 12 of Fig. 1 display 11.Display 11 takes advantage of 6 ruling 50 that screen 12 is divided into 63 measure-alike test zones 42 by 1.When color test system 10 test display device screens 12, test macro 10 is at first tested the display device screen 12 of 20 homotypes, to obtain the color output of each screen 12 all test zone 42, calculate the mean value of each test zone 42 colors output again according to measurement result, to select the test zone of five mean values maximums and five mean value minimums, be ten test zones 42 of colouring intensity deviation maximum.See also Fig. 3, Fig. 3 is a hypothetical test result, with regional m1, m2, m3, m4, the m5 of regional M1, M2, M3, M4, M5 and five mean value minimums of five mean value maximums in displayed map 2 screens 12.
See also Fig. 4, Fig. 4 by on Fig. 3 display unit 16 the static screen diagram of generation test path 20.After the maximum and minimum zone of five mean values produces, four are linked to be a blockade line near test zone m1, m2, m3 and the m4 in four corners of screen, so that test path 20 can be with near the mode in screen sideline, at least around 12 central weeks of screen, connect remaining six test zone M2, M1, M3, M4, m5 and M5 with beeline again.
And, estimate that continuous two spacing distances that read a little of read head 14 are adjusted along with the total length of test path 20 on the path 20, so that reading on the test path 20 a little is no more than 40.Therefore, when test path 20 length overalls are longer, except that ten test zones 42 of above-mentioned colouring intensity deviation maximum for fixing, all the other continuous two spacings that read a little can strengthen.
See also Fig. 5.Fig. 5 shows the schematic diagram of dynamic cursor on Fig. 4 test path, and this moment, the static screen with test path 20 was illustrated as background, and dynamic cursor 48 then glimmers on screen and moves.Color test system 10 cooperates the area of read head 14 and the reading speed of read head 14, corresponding to be measured regional 42 on the present screen 12 of dynamic cursor 48 prompting testers on the display unit 16, make the tester read head 14 can be moved to next regional 42 position to be measured.
Compare with traditional color test system, color test system 10 of the present invention can analyze the zone that the colouring intensity deviation more often takes place according to the test result of a plurality of displays 11, and set test path 20 according to these zones, test display 11 required counting of reading are significantly reduced, and still can detect underproof display effectively.In addition, color test system 10 can cooperate the area and the reading speed of color tester read head 14, on display unit 16, show next regional 42 position to be measured in the test path 20, make the tester read head 14 be moved on to the color output intensity that test position correct on the screen 12 reads each point with suitable speed with dynamic cursor 48.
The above only is the preferred embodiments of the present invention, and those skilled in the art can make various variations and modification according to the spirit and scope of the present invention, and these all should belong to the covering scope of patent of the present invention.
Claims (6)
1. color test system, the color uniformity that is used for testing a display device screen, this system comprises:
One read head, the color output that is used for reading this display device screen;
One display unit;
One color tester is used for receiving and write down the output of this read head and analyzes the color uniformity of this display device screen according to this;
Wherein when this display of test, this color tester is according to a default test path, the position in the next zone to be measured of this display device screen is presented on this display unit with a vernier, this vernier is used for assisting a user correctly to move this read head on this display device screen, so that this read head is read the color output in each the to be measured zone of this display device screen on this test path.
2. color test system as claimed in claim 1, wherein this color tester is set the speed that this vernier moves according to the time for reading that reads of this read head at every turn on this display unit.
3. color test system as claimed in claim 1, wherein should obtain according to the following step by default test path:
(1) screen with this display is divided into a plurality of test zones;
(2) display device screen of measuring a plurality of and this display homotype is with the color output of all test zones of obtaining each display device screen;
(3) calculate the mean value of the color output of each test zone according to measurement result, and select the maximum and minimum test zone of a plurality of mean values; And
(4) these a plurality of test zones of selecting are linked up to form this test path according to a predetermined way.
4. color test system as claimed in claim 3, wherein continuous two spacings that read a little of read head are adjusted along with the total length of this test path on this test path, so that the sum that reads on this test path is no more than a predetermined value.
5. color test system as claimed in claim 3, wherein the size of these a plurality of test zones is set according to the reading size of this read head.
6. color test system as claimed in claim 3, maximum or minimum test zone becomes a blockade line to the predetermined way that wherein forms this test path near four mean values in four corners of screen in order to connect earlier, and then connects the maximum and minimum test zone of remaining mean value with beeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98125778 CN1258174A (en) | 1998-12-22 | 1998-12-22 | Color test system for display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98125778 CN1258174A (en) | 1998-12-22 | 1998-12-22 | Color test system for display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1258174A true CN1258174A (en) | 2000-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98125778 Pending CN1258174A (en) | 1998-12-22 | 1998-12-22 | Color test system for display device |
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| CN (1) | CN1258174A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123782A (en) * | 2011-11-17 | 2013-05-29 | 晨星软件研发(深圳)有限公司 | Panel color correction method and relevant color correction system |
| CN108028918A (en) * | 2015-09-16 | 2018-05-11 | 柯尼卡美能达株式会社 | Image signal generator and display measuring device |
-
1998
- 1998-12-22 CN CN 98125778 patent/CN1258174A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123782A (en) * | 2011-11-17 | 2013-05-29 | 晨星软件研发(深圳)有限公司 | Panel color correction method and relevant color correction system |
| CN103123782B (en) * | 2011-11-17 | 2015-07-29 | 晨星软件研发(深圳)有限公司 | Method and the relevant color calibration system of panel colour correction |
| CN108028918A (en) * | 2015-09-16 | 2018-05-11 | 柯尼卡美能达株式会社 | Image signal generator and display measuring device |
| CN108028918B (en) * | 2015-09-16 | 2020-05-22 | 柯尼卡美能达株式会社 | Image signal generating device and display measuring device |
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