CN104282247A - Correcting system and method applied to display device - Google Patents

Correcting system and method applied to display device Download PDF

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Publication number
CN104282247A
CN104282247A CN201310286314.8A CN201310286314A CN104282247A CN 104282247 A CN104282247 A CN 104282247A CN 201310286314 A CN201310286314 A CN 201310286314A CN 104282247 A CN104282247 A CN 104282247A
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CN
China
Prior art keywords
display device
user
image
characterized
corrected
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CN201310286314.8A
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Chinese (zh)
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CN104282247B (en
Inventor
邱志强
罗祺贤
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晨星半导体股份有限公司
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Publication of CN104282247A publication Critical patent/CN104282247A/en
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Abstract

The invention provides a correcting system applied to a display device. The correcting system applied to the display device comprises an image signal source, a user action sensing module, a control module and a correcting interface, wherein the image signal source is used for driving the display device to represent a reference image and an indication sign contained in the reference image; the user action sensing module is used for detecting actions of a user and generating a corresponding sensing result; the control module is used for controlling the image signal source to move the indication sign according to the sensing result. After the user selects a to-be-corrected area in the reference image through the user action sensing module via the indication sign, image characteristic parameters, corresponding to the to-be-corrected area, of the display device are adjusted through the correcting interface.

Description

Be applied to corrective system and the bearing calibration of display device

Technical field

The present invention is relevant to alignment technique, and especially relevant to the alignment technique being applied to display device.

Background technology

All are normal for function when how to guarantee product export, are always the subjects under discussion that fabricator pays close attention to.Filter out problematic product in advance and repair, effectively could avoid goods return and replacement problem post sales and promote the satisfaction of consumer.

With regard to display device, a kind of common test event is the data inputting a reference picture at the signal receiving end of display device, and whether supervise its actual displayed result correct.For example, this reference picture as shown in Figure 1, can comprise longitudinal grey lines of various levels of brightness difference (increasing gradually from left to right).The grey-scale range provided for display device is 0 ~ 255, can comprise the different grey lines of 256 kinds of brightness in this reference picture at the most.Known to persond having ordinary knowledge in the technical field of the present invention, the grey decision-making of the red green blue tricolor in gray pixels is equal.If the color linearity of a tested screen is not good, when presenting the reference picture shown in Fig. 1, the pixel of non-grey in the picture that this tested screen presents, may be there is.Once discovery the problems referred to above, normally manually adjusted the setting (such as gamma curve) of the inside chip of tested screen by tester, the lines of color exception are corrected to the grey lines meeting expectation.

In current art, tester is the general location first judging to occur abnormal wire bar with naked eyes mostly, then with this general location for starting point Step wise approximation.Until lock the exact position of abnormal lines, tester could start the image characteristics parameter adjusting this exception.To appear at the situation as the position 20A in Fig. 2 when abnormal lines.Because position 20A drops on the middle section of whole reference picture and slightly to the right, tester can need in preliminary judgement gamma curve controlled GTG close to but a little more than grey decision-making 128.A kind of way finding the corresponding accurate grey decision-making of position 20A is control signal source, deliberately the longitudinal lines corresponding to grey decision-making 128 in this reference picture are set as having the color (such as high brightness pure red) obviously can distinguished, to indicate the position of the lines of grey decision-making 128 correspondence.Subsequently, tester can successively change by the position of the reference line deliberately changing color, such as, sequentially change and correspond to grey decision-making 129,130,131 ... the color of longitudinal lines, until this reference line coincides mutually with abnormal lines.After confirming the grey decision-making corresponding to abnormal lines, tester begins to adjust the image characteristics parameter corresponding to this grey decision-making in gamma curve.

The shortcoming of above-mentioned correcting scheme is quite consuming time.When there being many places abnormal in a tested screen, the daylong time spent possibly by this tested screen of adjustment, quite do not meet economic benefit.

Summary of the invention

For solving the problem, the present invention proposes a kind of new corrective system and bearing calibration.By user's action sensing module, tester directly can clearly select pixel to be corrected or imagery zone, and obtains its image characteristics parameter.Compared to the prior art adopting trial and error pricing (trial and error) to find the grey decision-making of abnormal area, higher according to the efficiency of corrective system of the present invention and bearing calibration, and mode of operation is more convenient.

A specific embodiment according to the present invention is a kind of corrective system being applied to display device, wherein comprises an image signal source, user's action sensing module, a control module and correct interface.This image signal source presents a reference picture and the designated symbol be contained in this reference picture in order to drive this display device.This user's action sensing module is in order to detect user's action and to produce a corresponding induction result.This control module is in order to move this designated symbol according to this this image signal source of induction output control.After user selects in this reference picture one region to be corrected through this user's action sensing module with this designated symbol, must adjust through this correction interface the image characteristics parameter that this display device corresponds to this region to be corrected.

Another specific embodiment according to the present invention is a kind of bearing calibration being applied to display device.First the method performs an actuation step, provides a signal of video signal, presents a reference picture and the designated symbol be contained in this reference picture to drive this display device.Step is subsequently detection one user's action and produces a corresponding induction result.Then, according to this induction result, this image signal source is controlled to this designated symbol mobile.The method and comprise and provide a correction interface, after making a user select in this reference picture one region to be corrected with this designated symbol, must adjust through this correction interface the image characteristics parameter that this display device corresponds to this region to be corrected.

Can be further understood by following detailed description and accompanying drawings about the advantages and spirit of the present invention.

Accompanying drawing explanation

Fig. 1 is a kind of example of reference picture of test display apparatus.

Fig. 2 is a kind of display result example occurring abnormal lines.

Fig. 3 (A) and Fig. 3 (B) is the functional block diagram according to the corrective system in one embodiment of the invention.

Fig. 4 is the process flow diagram according to the bearing calibration in one embodiment of the invention.

Symbol description

20A: abnormal lines position 300: corrective system

32: image signal source 34: user's action sensing module

36: control module 38: correct interface

800: display device 82: image processing module

82A: comparative strengthening circuit 82B: Gamma unit

400: correcting process S42 ~ S48: process step

Embodiment

A specific embodiment according to the present invention is a kind of corrective system being applied to a display device, and its functional block diagram is illustrated in Fig. 3 (A).Should be noted that, the inventive concept that so-called the present invention herein presents in order to censure these embodiments, but it is contained category and is not limited to embodiment itself.Corrective system 300 comprises image signal source 32, user's action sensing module 34, control module 36 and and corrects interface 38.As shown in Fig. 3 (A), in test pattern, image signal source 32 and control module 36 are all coupled to display device 800.

In practice, the function of the elements such as image signal source 32, user's action sensing module 34, control module 36 and correction interface 38 can be, but not limited to utilize personal computer system to realize.For example, image signal source 32 can be the display card in personal computer system, through meeting digital video interface (digital visual interface, DVI) or the image transmission line of high-resolution multimedia interface (high definition multimedia interface, HDMI) equal-specification be connected to display device 800.User's action sensing module 34 can be the mouse or a Trackpad that coordinate with personal computer system.The function that control module 36 provides can be planned to the processor instruction be stored in non-transient state computer readable media in advance, can be performed by the processor of personal computer system.Or the function that control module 36 provides also can be contained in a special circuit chip.Correct interface 38 to can be the keyboard that coordinates with personal computer system or be other input medias.

Image signal source 32 is responsible for driving display device 800 to present a reference picture and be contained in a kind of designated symbol in this reference picture, such as, be vernier.This reference picture can need to be determined by tester according to actual test.If test event is the color linearity of display device 800, this reference picture can be the example figure that Fig. 1 presents.If test event is brightness, other display characteristics such as comparative, its corresponding reference picture can be different.

User's action sensing module 34 is in order to detect user's action and to produce corresponding induction result.Couple user's action sensing module 34 respectively and can move this vernier according to the induction output control image signal source 32 of user's action sensing module 34 with the control module 36 of image signal source 32.For the situation that user's action sensing module 34 is mouse, when user's translation mouse, the vernier in the reference picture that display device 800 presents also can move accordingly.Persond having ordinary knowledge in the technical field of the present invention can understand, and the implementation of user's action sensing module 34 has a variety of, such as, have the Trackpad of identity function, plotting sheet or trace ball, be not limited with mouse.

In practice, aforementioned vernier can be known to control module 36 relative to the coordinate position of whole reference picture.Accordingly, control module 36 just can capture the one or more image characteristics parameters corresponding to vernier current position in the image processing module 82 of display device 800.For example, first control module 36 can judge this vernier points to which pixel (hereinafter referred to as object pixel) in reference picture at present.Subsequently, control module 36 can be found out image signal source 32 for this object pixel and be provided to the redgreenblue grey decision-making separately of display device 800.According to these grey decision-making, control module 36 just the gamma look-up tables in self imaging processing module 82 can find out the gamma curve parameter of this object pixel.

In an embodiment, control module 36 can control image signal source 32, presents image characteristics parameter corresponding to vernier current position with the form of screen display (on-screen display, OSD) in display device 800.Therefore, as long as user is through the vernier on user's action sensing module 34 moving image, the image characteristics parameter of each pixel can just be learnt.In an embodiment, user can pass through user's action sensing module 34 and clicks a pixel with vernier or frame choosing comprises the scope of multiple pixel, as a region to be corrected.After region to be corrected is selected, control module 36 just controls image signal source 32 and presents image characteristics parameter corresponding to region to be corrected with an osd window.Easy speech it, before user selects region to be corrected, this osd window there will not be in reference picture.In another embodiment, user needn't click, and namely the pixel pointed by vernier current position is regarded as region to be corrected, and control module 36 can control image signal source 32, makes display device 800 immediately present image characteristics parameter corresponding to vernier current position.。

After selecting region to be corrected by user's action sensing module 34 with vernier, user just can pass through and corrects the image characteristics parameter that interface 38 adjustment corresponds to region to be corrected.Correct interface 38 and can be a kind of input media.To correct the situation that interface 38 is a keyboard, in test pattern, some button in this keyboard can be set to change the gamma curve parameter stored by gamma look-up tables in image processing module 82 through control module 36.Or user can directly through the gamma curve parameter after the numerical key Introduced Malaria on keyboard.According to picture after the amendment that display device 800 presents subsequently, user can learn the need of again adjusting this image characteristics parameter.

Should be noted that, inessential in the image characteristics parameter presented in display device 800 corresponding to region to be corrected.In addition, if comprised multiple pixel by the region to be corrected selected, user also can select the image characteristics parameter of a wherein part to adjust again further in multiple image characteristics parameters that these pixels are corresponding.

Can be found out by above explanation, be different from prior art first finds the grey decision-making of abnormal area way with trial and error pricing, in an embodiment according to the present invention, tester can clearly select pixel to be corrected or imagery zone by user's action sensing module 34 directly self-reference picture, is therefore saved mental and physical efforts and the time of many location abnormal area.In addition, the intuition that aforesaid operations mode quite meets common people is cognitive, for tester, have height convenience.

As shown in Fig. 3 (B), except Gamma unit 82B, the image processing module 82 in display device 800 also may comprise the circuit performing other image processing programs, such as comparative strengthening circuit 82A.In this example, the data of the reference picture that image signal source 32 provides, before entering Gamma unit 82B, first can accept the process of comparative strengthening circuit 82A.Therefore, image signal source 32 is that the grey decision-making that an object pixel is provided to display device 800 is not necessarily same as the grey decision-making that this object pixel is admitted to Gamma unit 82B.In that case, if display device 800 has the function providing hardware cursor (hardware cursor), the coordinate position information of the object pixel pointed by vernier can be inserted the address register that hardware cursor is specified by control module 36, and read the image information relevant to this image characteristics parameter from a corresponding Data buffer, the namely actual grey decision-making sending into Gamma unit 82B.Subsequently, control module 36 can capture this image characteristics parameter according to this image information from Gamma unit 82B.

If the personal computer system that corrective system 300 not can coordinate with devices such as slide-mouse, trace ball, Trackpads, user's action sensing module 34 can be designed to a screen display (OSD) directive controller, such as a keyboard.As long as the operation formula of suitably design cooperation, tester can utilize screen display index to select region to be corrected fast equally.

Another specific embodiment according to the present invention is a kind of bearing calibration being applied to display device, and its process flow diagram is illustrated in Fig. 4.First correcting process 400 performs step S42: provide a signal of video signal, presents a reference picture and the designated symbol be contained in this reference picture to drive this display device.Step S44 is subsequently detection one user's action and produces a corresponding induction result.Then, step S46 is for move this designated symbol according to this this image signal source of induction output control.Step S48, for providing a correction interface, after making a user select in this reference picture one region to be corrected with this designated symbol, must adjust through this correction interface the image characteristics parameter that this display device corresponds to this region to be corrected.

The various modes of circuit operation previously described when introducing corrective system 300 and change type (such as obtaining the mode of the image characteristics parameter in region to be corrected) thereof also can be applied in correcting process 400, and its details repeats no more.

In practical application, corrective system 300 can integrate other test functions further, also can independently exist.As mentioned above, by user's action sensing module, tester directly can clearly select pixel to be corrected or imagery zone, and obtains its image characteristics parameter.Compared to the prior art adopting trial and error pricing to find the grey decision-making of abnormal area, higher according to the efficiency of corrective system of the present invention and bearing calibration.

The above detailed description of preferred embodiments system wishes clearly to describe feature of the present invention and spirit, and is not limited category of the present invention with above-mentioned disclosed preferred embodiment.On the contrary, its objective is wish to contain various change and tool equality be arranged in the present invention institute in the category of the scope of the claims applied for.

Claims (13)

1. be applied to a corrective system for a display device, comprise:
One image signal source, can be coupled to this display device and drive this display device to present a reference picture and the designated symbol be contained in this reference picture;
One user's action sensing module, in order to detect user's action and to produce a corresponding induction result;
One control module, couples this user's action sensing module and this image signal source respectively, in order to move this designated symbol according to this this image signal source of induction output control; And
One corrects interface, after a user selects in this reference picture one region to be corrected through this user's action sensing module with this designated symbol, must adjust the image characteristics parameter that this display device corresponds to this region to be corrected through this correction interface.
2. corrective system as claimed in claim 1, it is characterized in that, this user's action sensing module is a mouse, a Trackpad or a screen display directive controller.
3. corrective system as claimed in claim 1, is characterized in that, this user is able to click through this user's action sensing module or frame selects this region to be corrected.
4. corrective system as claimed in claim 1, it is characterized in that, this region to be corrected comprises one or more pixel.
5. corrective system as claimed in claim 1, it is characterized in that, this image characteristics parameter is a gamma curve parameter.
6. corrective system as claimed in claim 1, it is characterized in that, this designated symbol comprises a vernier, one coordinate information of this vernier is inserted a hardware cursor address register of this display device by this control module, and reading an image information relevant to this image characteristics parameter from a corresponding Data buffer, this control module is subsequently according to this image characteristics parameter of this image information extraction.
7. corrective system as claimed in claim 1, it is characterized in that, this control module controls this image signal source, presents this image characteristics parameter with a screen display form in this display device.
8. corrective system as claimed in claim 1, it is characterized in that, this correction interface comprises an input media.
9. be applied to a bearing calibration for a display device, comprise:
A () provides a signal of video signal, present a reference picture and the designated symbol be contained in this reference picture to drive this display device;
B () is detected user's action and is produced a corresponding induction result;
C () moves this designated symbol according to this this image signal source of induction output control; And
D () provides a correction interface, after making a user select in this reference picture one region to be corrected with this designated symbol, must adjust the image characteristics parameter that this display device corresponds to this region to be corrected through this correction interface.
10. bearing calibration as claimed in claim 9, it is characterized in that, this region to be corrected comprises one or more pixel.
11. bearing calibrations as claimed in claim 9, is characterized in that, this image characteristics parameter is a gamma curve parameter.
12. bearing calibrations as claimed in claim 9, is characterized in that, comprise further:
One coordinate position information of this designated symbol is inserted a hardware cursor address register of this display device, and read an image information relevant to this image characteristics parameter from a corresponding Data buffer; And
According to this image characteristics parameter of this image information extraction.
13. bearing calibrations as claimed in claim 9, is characterized in that, comprise further:
Control this signal of video signal, present this image characteristics parameter with a screen display form in this display device.
CN201310286314.8A 2013-07-09 2013-07-09 Correcting system and method applied to display device CN104282247B (en)

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Application Number Priority Date Filing Date Title
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070002079A1 (en) * 2005-06-30 2007-01-04 Infocus Corporation Image display device and method of calibrating an image position and/or size on an image display device
CN101208738A (en) * 2005-04-11 2008-06-25 波利维森有限公司 Automatic projection calibration
US8089455B1 (en) * 2006-11-28 2012-01-03 Wieder James W Remote control with a single control button
US20120293400A1 (en) * 2011-05-20 2012-11-22 Canon Kabushiki Kaisha Image display system, image display apparatus and calibration method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101208738A (en) * 2005-04-11 2008-06-25 波利维森有限公司 Automatic projection calibration
US20070002079A1 (en) * 2005-06-30 2007-01-04 Infocus Corporation Image display device and method of calibrating an image position and/or size on an image display device
US8089455B1 (en) * 2006-11-28 2012-01-03 Wieder James W Remote control with a single control button
US20120293400A1 (en) * 2011-05-20 2012-11-22 Canon Kabushiki Kaisha Image display system, image display apparatus and calibration method

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