CN104282247B - 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
CN104282247B
CN104282247B CN201310286314.8A CN201310286314A CN104282247B CN 104282247 B CN104282247 B CN 104282247B CN 201310286314 A CN201310286314 A CN 201310286314A CN 104282247 B CN104282247 B CN 104282247B
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China
Prior art keywords
image
display device
characterised
parameter
user action
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CN201310286314.8A
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Chinese (zh)
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CN104282247A (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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Priority to CN201310286314.8A priority Critical patent/CN104282247B/en
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

It is applied to correction system and the bearing calibration of display device

Technical field

The present invention is related to alignment technique and especially related to the alignment technique for being applied to display device.

Background technology

Function when how to guarantee product export all goes well, and is always the subject under discussion of maker concern.Filter out in advance The product of problem is simultaneously repaired, and can be just prevented effectively from goods return and replacement problem post sales and be lifted the satisfaction of consumer.

For display device, a kind of common test event is one to refer to picture in the signal receiving end input of display device The data in face, and whether supervise its actual displayed result correct.For example, the reference picture can be as shown in figure 1, comprising various Longitudinal Lycoperdon polymorphum Vitt lines of brightness different (gradually increasing from left to right).The grey-scale range provided with display device is 0~255 to be Example, can at most include the different Lycoperdon polymorphum Vitt lines of 256 kinds of brightness in the reference picture.It is as logical in having in the technical field of the invention Often known to skill, 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 It is good, when the reference picture shown in Fig. 1 is presented, it is possible that the pixel of non-Lycoperdon polymorphum Vitt in the picture that the tested screen is presented.One Denier finds the problems referred to above, and setting (such as gamma song of the inside chip of tested screen is typically manually adjusted by tester Line), the lines of color exception are corrected to and meet desired Lycoperdon polymorphum Vitt lines.

In current art, tester is mostly the general location for first abnormal wire bar occur with naked eyes judgement, then with this General location is starting point Step wise approximation.Until the exact position of the abnormal lines of locking, tester could start to adjust the exception The image characteristicss parameter at place.In case of occurring in such as the position 20A in Fig. 2 when abnormal lines.Because position 20A falls The middle section of whole reference picture and slightly to the right, tester can need controlled GTG in preliminary judgement gamma curve It is near but slightly above grey decision-making 128.A kind of way for finding the corresponding accurate grey decision-makings of position 20A is control signal source, is carved Are anticipated and the longitudinal lines in the reference picture corresponding to grey decision-making 128 are set as thering is substantially distinguishable color (such as high brightness It is pure red), to indicate the position of the corresponding lines of grey decision-making 128.Subsequently, tester can gradually change by deliberately Change the position of the reference line of color, for example, sequentially change the color of the longitudinal lines corresponding to grey decision-making 129,130,131 ..., Until the reference line mutually coincides with abnormal lines.After the grey decision-making corresponding to abnormal lines is confirmed, tester begins to adjust Corresponding to the image characteristicss parameter of the grey decision-making in gamma curve.

The shortcoming of above-mentioned correcting scheme is relatively time consuming.When there is many places exception in a tested screen, the adjustment tested screen Curtain may spend the daylong time, quite not meet economic benefit.

The content of the invention

To solve the above problems, the present invention proposes a kind of new correction system and bearing calibration.By user sense of movement Answer module, tester directly can clearly select pixel to be corrected or imagery zone, and obtain its image characteristicss parameter.Compare In the prior art of the grey decision-making that abnormal area is found using trial and error pricing (trial and error), correction of the invention System and the efficiency of bearing calibration are higher, and mode of operation is relatively facilitated.

A specific embodiment of the invention is a kind of correction system for being applied to display device, wherein comprising an image Signal source, a user action sensing module, a control module and a correction interface.The image signal source is to drive the display Device is presented a reference picture and the designated symbol being contained in the reference picture.The user action sensing module is to examine Survey a user action and produce a corresponding sensing result.The control module is to according to the sensing output control image Signal source moves the designated symbol.User selects the reference picture through the user action sensing module with the designated symbol In a region to be corrected after, obtain that to adjust the display device through the correction interface special corresponding to an image in the region to be corrected Property parameter.

Another specific embodiment of the invention is a kind of bearing calibration for being applied to display device.The method is held first The actuation step of row one a, there is provided signal of video signal, to drive the display device that a reference picture is presented and be contained in the reference picture In a designated symbol.Subsequent step is to detect a user action and produce corresponding one to sense result.Then, according to The sensing result, the image signal source is controlled to move the designated symbol.The method and comprising provide one correct interface, make Obtain a user to select with the designated symbol behind the region to be corrected in the reference picture, obtaining should through the correction interface adjustment An image characteristicss parameter of the display device corresponding to the region to be corrected.

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

Description of the drawings

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

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

Fig. 3 (A) and the functional block diagram that Fig. 3 (B) is the correction system in one embodiment of the invention.

Fig. 4 is the flow chart of the bearing calibration in one embodiment of the invention.

Symbol description

20A:Abnormal lines position 300:Correction system

32:Image signal source 34:User action sensing module

36:Control module 38:Correction interface

800:Display device 82:Image processing module

82A:Comparative strengthens circuit 82B:Gamma unit

400:Correcting process S42~S48:Process step

Specific embodiment

A specific embodiment of the invention is a kind of correction system for being applied to a display device, its functional block diagram It is illustrated in Fig. 3 (A).It should be noted that, herein the so-called present invention is to censure the inventive concept that these embodiments are presented, but its Cover category and be not limited by embodiment itself.Correction system 300 includes an image signal source 32, a user action induction mould Block 34, a control module 36 and a correction interface 38.As shown in Fig. 3 (A), in test pattern, image signal source 32 and control Module 36 is all coupled to display device 800.

In practice, the element such as image signal source 32, user action sensing module 34, control module 36 and correction interface 38 Function can be, but not limited to be realized using personal computer system.For example, image signal source 32 can be PC system Display card in system, passes through and meets digital video interface (digital visual interface, DVI) or many matchmakers of high-res The image transmission line of body interface (high definition multimedia interface, HDMI) equal-specification is connected to display Device 800.User action sensing module 34 can be the mouse or a Trackpad coordinated with personal computer system.Control module 36 functions of providing are then the processor instructions that can be planned in advance be stored in non-transient computer readable media, can be individual The computing device of people's computer system.Or, the function that control module 36 is provided also may be included with a special circuit chip. Correction interface 38 can be the keyboard that coordinates with personal computer system or for other input equipment.

Image signal source 32 is responsible for driving display device 800 reference picture to be presented and is contained in the reference picture A kind of designated symbol, for example, vernier.The reference picture can need to be determined by tester according to actual test.If test event is aobvious The color linearity of showing device 800, the reference picture can be the example figure that Fig. 1 is presented.If test event is brightness, comparative etc. Other display characteristics, its corresponding reference picture can be different.

User action sensing module 34 is to detect a user action and produce corresponding sensing result.Difference coupling Connecing user action sensing module 34 can be according to user action sensing module 34 with the control module 36 of image signal source 32 Sensing output control image signal source 32 moves the vernier.In case of user action sensing module 34 is as mouse, when During user translation mouse, the vernier in the reference picture that display device 800 is presented also can be moved accordingly.Institute of the present invention Has usually intellectual it is understood that the implementation of user action sensing module 34 there are many kinds in category technical field, for example Trackpad with identity function, drawing board or trace ball, are 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 Molding block 36 just can capture or many corresponding to vernier current position from the image processing module 82 of display device 800 Individual image characteristicss parameter.For example, which that the vernier is presently directed in reference picture be control module 36 can first determine whether Pixel (hereinafter referred to as object pixel).Subsequently, control module 36 can find out image signal source 32 and provide to display for the object pixel The respective grey decision-making of redgreenblue of device 800.According to these grey decision-makings, control module 36 just can self imaging processing module 82 In gamma look-up tables find out the gamma curve parameter of the object pixel.

In an embodiment, control module 36 can control image signal source 32, with screen display (on-screen Display, OSD) form display device 800 present vernier current position corresponding to image characteristicss parameter.Therefore, use As long as person just can learn the image characteristicss ginseng of each pixel through the vernier on the moving image of user action sensing module 34 Number.In an embodiment, user can pass through user action sensing module 34 and click a pixel or frame choosing comprising many with vernier The scope of individual pixel, as a region to be corrected.After region to be corrected is selected, control module 36 just controls image signal source 32 with an osd window in now corresponding to the image characteristicss parameter in region to be corrected.In other words, select to treat school in user Before positive region, the osd window is not appeared in reference picture.In another embodiment, user needn't be clicked, trip Pixel pointed by heading front position is considered region to be corrected, and control module 36 can control image signal source 32, and order is aobvious Showing device 800 is presented the image characteristicss parameter corresponding to vernier current position immediately.

Selected behind region to be corrected with vernier by user action sensing module 34, user just can pass through correction interface Image characteristicss parameter of 38 adjustment corresponding to region to be corrected.Correction interface 38 can be a kind of input equipment.To correct interface 38 In case of for a keyboard, in test pattern, some of keyboard button can be set to that control module 36 can be passed through Change the gamma curve parameter stored by the gamma look-up tables in image processing module 82.Or, user can be directed through key The gamma curve parameter after numeral keys' Introduced Malaria on disk.According to picture after the modification that display device 800 is subsequently presented, use Person can know whether to need to adjust the image characteristicss parameter again.

It should be noted that, in display device 800 in the image characteristicss parameter for now corresponding to region to be corrected not necessarily. Additionally, if selected region to be corrected includes multiple pixels, user also can be from the corresponding multiple image characteristicss of these pixels Further select the image characteristicss parameter of a portion in parameter to adjust.

Can be seen that by described above, first find the way of the grey decision-making of abnormal area with trial and error pricing different from prior art, In an embodiment according to the present invention, tester can be by user action sensing module 34 directly from clear and definite in reference picture Pixel to be corrected or imagery zone are selected, therefore is able to save mental and physical efforts and the time of many positioning abnormal areas.Additionally, above-mentioned The intuition that mode of operation quite meets common people is cognitive, has height convenience for tester.

As shown in Fig. 3 (B), in addition to Gamma unit 82B, the image processing module 82 in display device 800 is also possible to Comprising the circuit to perform other image processing programs, such as comparative reinforcing circuit 82A.In this example, image letter The data of the reference picture that number source 32 provides can first receive the place that comparative strengthens circuit 82A before into Gamma unit 82B Reason.Therefore, image signal source 32 is provided to the grey decision-making of display device 800 for an object pixel and is not necessarily same as the object pixel It is admitted to the grey decision-making of Gamma unit 82B.In that case, if display device 800 is provided with hardware cursor (hardware The coordinate position information of the object pixel pointed by vernier can be inserted hardware cursor and be referred to by function cursor), control module 36 Fixed address register, and the image information related to the image characteristicss parameter is read from a corresponding Data buffer, Exactly it is actually fed into the grey decision-making of Gamma unit 82B.Subsequently, control module 36 can be according to the image information from Gamma unit 82B Capture the image characteristicss parameter.

If the personal computer system that correction system 300 not can coordinate with the device such as slide-mouse, trace ball, Trackpad, uses Person's action sensing module 34 is designed to a screen display (OSD) directive controller, such as a keyboard.As long as appropriately designed match somebody with somebody The operation formula of conjunction, tester equally can quickly select region to be corrected using screen display index.

Another specific embodiment of the invention is a kind of bearing calibration for being applied to display device, and its flow chart is illustrated In Fig. 4.Correcting process 400 is first carried out step S42:One signal of video signal is provided, to drive the display device to be presented one picture is referred to Face and the designated symbol being contained in the reference picture.Subsequent step S44 is for one user action of detection and produces relative The sensing result answered.Then, the sensing output control image signal source moves the designated symbol according to step S46.Step Rapid S48 corrects interface to provide one so that a user selects the region to be corrected in the reference picture with the designated symbol Afterwards, obtain and adjust an image characteristicss parameter of the display device corresponding to the region to be corrected through the correction interface.

The various modes of circuit operation for previously describing when correction system 300 is introduced and its change type (are for example obtained and treat school The mode of the image characteristicss parameter of positive region) also can apply into correcting process 400, its details is repeated no more.

In practical application, correction system 300 can further integrate other test functions, also can be individually present.As above institute State, by user action sensing module, tester directly can clearly select pixel to be corrected or imagery zone, and obtain Its image characteristicss parameter.Compared to the prior art of the grey decision-making that abnormal area is found using trial and error pricing, school of the invention Positive system and the efficiency of bearing calibration are higher.

The above detailed description of preferred embodiments system wishes to more clearly describe the feature of the present invention and spirit, and not Scope of the invention is any limitation as with above-mentioned disclosed preferred embodiment.On the contrary, its objective is to wish to contain Lid various changes and tool equality are arranged in the category of the scope of the claims to be applied of the invention.

Claims (13)

1. a kind of correction system for being applied to a display device, comprising:
One image signal source, can be coupled to the display device and drive the display device that a reference picture is presented and this is contained in A designated symbol in reference picture;
One user action sensing module, to detect a user action and produce a corresponding sensing result;
One control module, is respectively coupled to the user action sensing module and the image signal source, to according to the sensing result Control the image signal source and move the designated symbol;And
One correction interface a, user is selected in the reference picture through the user action sensing module with the designated symbol Behind one region to be corrected, obtain and adjust image characteristicss ginseng of the display device corresponding to the region to be corrected through the correction interface Number.
2. it is as claimed in claim 1 to correct system, it is characterised in that the user action sensing module is a mouse, one touches Control plate or a screen display directive controller.
3. it is as claimed in claim 1 to correct system, it is characterised in that the user is able to through the user action induction mould Block is clicked or frame selects the region to be corrected.
4. it is as claimed in claim 1 to correct system, it is characterised in that the region to be corrected includes one or more pixels.
5. it is as claimed in claim 1 to correct system, it is characterised in that the image characteristicss parameter is a gamma curve parameter.
6. as claimed in claim 1 to correct system, it is characterised in that the designated symbol includes a vernier, the control module will One coordinate information of the vernier inserts a hardware cursor address register of the display device, and temporary from a corresponding data Device reads an image information related to the image characteristicss parameter, and the control module is subsequently according to the image information extraction image Characterisitic parameter.
7. it is as claimed in claim 1 to correct system, it is characterised in that the control module controls the image signal source, with a screen Curtain display format is presented the image characteristicss parameter in the display device.
8. it is as claimed in claim 1 to correct system, it is characterised in that the correction interface includes an input equipment.
9. a kind of bearing calibration for being applied to a display device, comprising:
A () provides a signal of video signal, to drive the display device that a reference picture and be contained in the reference picture is presented Designated symbol;
B () detects a user action and produces a corresponding sensing result;
C () image signal source moves the designated symbol according to the sensing output control;And
D () provides one and corrects interface so that a user selects the region to be corrected in the reference picture with the designated symbol Afterwards, obtain and adjust an image characteristicss parameter of the display device corresponding to the region to be corrected through the correction interface.
10. bearing calibration as claimed in claim 9, it is characterised in that the region to be corrected includes one or more pixels.
11. bearing calibrations as claimed in claim 9, it is characterised in that the image characteristicss parameter is a gamma curve parameter.
12. bearing calibrations as claimed in claim 9, it is characterised in that further include:
One coordinate position information of the designated symbol is inserted into a hardware cursor address register of the display device, and from relatively The Data buffer answered reads an image information related to the image characteristicss parameter;And
According to the image information extraction image characteristicss parameter.
13. bearing calibrations as claimed in claim 9, it is characterised in that further include:
The signal of video signal is controlled, the image characteristicss parameter is presented in the display device in a screen display form.
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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CN104282247B true CN104282247B (en) 2017-04-26

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Publication number Priority date Publication date Assignee Title
WO2006110141A2 (en) * 2005-04-11 2006-10-19 Polyvision Corporation 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
JP6004673B2 (en) * 2011-05-20 2016-10-12 キヤノン株式会社 Image display system, image display apparatus, and calibration method

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