CN101833909A - Picture quality detection circuit, picture quality detection method and liquid crystal display panel - Google Patents
Picture quality detection circuit, picture quality detection method and liquid crystal display panel Download PDFInfo
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- CN101833909A CN101833909A CN200910047597A CN200910047597A CN101833909A CN 101833909 A CN101833909 A CN 101833909A CN 200910047597 A CN200910047597 A CN 200910047597A CN 200910047597 A CN200910047597 A CN 200910047597A CN 101833909 A CN101833909 A CN 101833909A
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Abstract
The invention provides a picture quality detection circuit which is used for detecting the picture quality of a signal wire group which comprises at least two signal wires. The picture quality detection circuit comprises a movable conductive lead wire which is movably connected with the contact zone of each signal wire. The invention also provides a picture quality detection method and a liquid crystal display panel which can ensure that no surplus wire can be left on a substrate after finishing detecting the picture quality of the signal wire group.
Description
Technical field
The present invention relates to technical field of manufacturing semiconductors, particularly a kind of picture quality detection circuit, picture quality detection method and liquid crystal panel.
Background technology
Thin Film Transistor-LCD (TFTLCD) comprises thin film transistor (TFT), matching capacitance, the driver element of arrayed and other are in order to drive pixel to obtain the electricity component of rich image.Because TFTLCD has that volume is little, low-power consumption, radiationless advantage, make it have and progressively replace traditional CRT and be used in trend on the digital products such as notebook computer, personal digital assistant.
Fig. 1 is the structural representation of liquid crystal panel; Fig. 2 is the structural representation of data drive circuit.As shown in Figure 1, LCD 10 comprises infrabasal plate 12 and the upper substrate 14 that places on the described infrabasal plate 12, the liquid crystal layer (not shown) is filled between described upper substrate 14 and the infrabasal plate 12, LCD comprises multi-strip scanning line 16 and data line 18, usually, each described sweep trace 16 and data line 18 are placed on the infrabasal plate 12, and every sweep trace 16 is perpendicular to every data line 18.
Usually, before each data line driver element and scanning line driving unit being bundled in data line driver element equipment district and scanning line driving unit equipment district, need carrying out image quality and detect (visual test), whether have abnormal color demonstration to detect.After the image quality detection is finished, need to guarantee the independence of each signal wire, so that after binding data line driver element and scanning line driving unit, product can operate as normal.
At present, can obtain independently each signal wire after finishing in the image quality detection, two kinds of possibilities are arranged, first kind of scheme is that short circuit-laser blows method, and second kind of scheme is the TFT shoulder rotation.
First kind of scheme is when carrying out the image quality detection, with a short bar 24 branch all signal wires at a group are linked together (as shown in Figure 3, with described signal wire is that sweep trace 16 is an example, as example, suppose that sweep trace has 4, be divided into two groups according to odd even), after image quality detects and to finish, being connected with laser between signal wire (as sweep trace 16) and the short bar 24 blown (as shown in Figure 4).
Second kind of scheme is to do a TFT switching device between conductive lead wire and signal wire, and the characteristics of this device are when adding high voltage on switch, switch opens; When adding low-voltage, switch cuts out.Therefore, add high voltage on switch, switch opens conducts between signal wire and the short bar, can carry out image quality and detect; Image quality adds low-voltage after detecting and finishing on switch, switch cuts out, and disconnects between signal wire and the short bar, thereby can enter subsequent processing.
Yet actual production finds, when adopting above-mentioned two kinds of schemes, its shortcoming is respectively arranged: when adopting first kind of scheme, after the image quality detection is finished, increase by a procedure, so that the connection between signal wire and the short bar is blown, prolonged the process time of product, increased production cost; When adopting second kind of scheme, mainly consider following two aspects, the one, because the restriction of TFT itself when switch cuts out, can not be closed very sternly, have a spot of leakage current; The 2nd, TFT need take certain space, when adopting some driver element, can't realize.In addition, when adopting above-mentioned two kinds of schemes, after image quality detects, ineffective short bar still remains on the liquid crystal panel, and on liquid crystal panel, there is unnecessary cabling, being easy to increases the probability that produces static, and described in addition unnecessary cabling can take certain space, also is unfavorable for the development trend of the narrow frame of LCD.
Summary of the invention
The invention provides a kind of picture quality detection circuit, after the image quality detection is finished, can residual unnecessary cabling on substrate.
The invention provides a kind of picture quality detection method, after the image quality detection is finished, can residual unnecessary cabling on substrate.
The invention provides a kind of liquid crystal panel, after the image quality detection is finished, can residual unnecessary cabling on substrate.
A kind of picture quality detection circuit provided by the invention detects in order to signal line group is carried out image quality, and described signal line group comprises at least two signal line, and each described signal wire has the contact region; Described picture quality detection circuit comprises: movable conductive lead wire flexibly connects in order to the contact region with each described signal wire.
Alternatively, the number of described signal line group is more than or equal to 2; Alternatively, be formed with conductive oxide layer on described contact region, described movable conductive lead wire is connected via the described signal wire of described conductive oxide layer and each; Alternatively, the contact region in each described signal line group is located along the same line; Alternatively, described conductive oxide is tin indium oxide or indium zinc oxide; Alternatively, described movable conductive lead wire is a conductive rubber; Alternatively, described movable conductive lead wire has the conduction contact region, and described movable conductive lead wire is connected to each described signal wire via described conduction contact region; Alternatively, described conduction contact region is a conductive rubber; Alternatively, described signal wire is sweep trace or data line.
A kind of picture quality detection method provided by the invention comprises:
Connect each signal wire with movable conductive lead wire;
Provide drive signal to described signal wire, described drive signal transfers to the image quality detecting unit via described movable conductive lead wire and detects to carry out image quality;
Image quality removes described movable conductive lead wire after detecting and finishing.
Alternatively, described movable conductive lead wire is connected with described signal wire via conductive oxide layer, and described conductive oxide layer is formed on the contact region of described signal wire; Alternatively, described conductive oxide is tin indium oxide or indium zinc oxide; Alternatively, described movable conductive lead wire is a conductive rubber; Alternatively, described movable conductive lead wire is connected with each described signal wire via the conduction contact region in it; Alternatively, described conduction contact region is a conductive rubber; Alternatively, described signal wire is sweep trace or data line.
A kind of liquid crystal panel provided by the invention comprises:
First substrate,
Second substrate, described second substrate is relative with described first substrate; And
Liquid crystal layer places between described first substrate and second substrate,
Wherein, described first substrate comprises: at least two signal line group, and each described signal line group comprises at least two signal line; All have the contact region on each described signal wire, described contact region detects electrical isolation between each described contact region in order to be electrically connected with conductive lead wire to carry out image quality.
Alternatively, the contact region in each described signal line group is located along the same line; Alternatively, be formed with conductive oxide layer on each described contact region; Alternatively, described conductive oxide is tin indium oxide or indium zinc oxide; Alternatively, described signal wire is sweep trace or data line; Alternatively, described liquid crystal panel has viewing area and non-display area, and described contact region is positioned at described non-display area.
Compared with prior art, technique scheme has the following advantages:
The picture quality detection circuit that technique scheme provides by introducing movable conductive lead wire, can utilize described movable conductive lead wire to the signal of image quality detecting unit transmission in order to detect when carrying out the image quality detection; And image quality detect finish after, described movable conductive lead wire is removed, can image quality detect finish after, can residual unnecessary cabling on substrate.
The picture quality detection method that technique scheme provides by when carrying out the image quality detection, utilizes described movable conductive lead wire to the signal of image quality detecting unit transmission in order to detect; And image quality detect finish after, remove described movable conductive lead wire, can image quality detect finish after, can residual unnecessary cabling on substrate.
The liquid crystal panel that technique scheme provides, by when carrying out the image quality detection, introducing activity conductive lead wire; And image quality detect finish after, remove described movable conductive lead wire, can image quality detect finish after, can residual unnecessary cabling on substrate.
In addition, technical scheme of the present invention does not need to be provided with the short bar as background technology, and the frame that helps LCD subtracts narrow.Further, the present invention is not owing to need to be provided with short bar, thereby simplified manufacturing process, saved production cost.
Description of drawings
Fig. 1 is the structural representation of liquid crystal panel in the prior art;
Fig. 2 is the structural representation of data drive circuit in the prior art;
Structural representation when Fig. 3 carries out the image quality detection for available technology adopting short circuit-laser method of blowing;
Fig. 4 is that available technology adopting short circuit-laser method of blowing is carried out the structural representation after image quality detects;
Fig. 5 is for being formed with the cut-open view of the signal wire contact region of conductive oxide among the picture quality detection method embodiment of the present invention on it;
Cut-open view when the image quality of carrying out the picture quality detection method that Fig. 6 provides for application picture quality detection method embodiment of the present invention detects.
Embodiment
Although below with reference to accompanying drawings the present invention is described in more detail, wherein represented the preferred embodiments of the present invention, be to be understood that those skilled in the art can revise the present invention described here and still realize advantageous effects of the present invention.Therefore, following description is appreciated that extensive instruction for those skilled in the art, and not as limitation of the present invention.
For clear, whole features of practical embodiments are not described.In the following description, be not described in detail known function and structure, because they can make the present invention because unnecessary details and confusion.Will be understood that in the exploitation of any practical embodiments, must make a large amount of implementation details, for example, change into another embodiment by an embodiment according to relevant system or relevant commercial restriction to realize developer's specific objective.In addition, will be understood that this development may be complicated and time-consuming, but only be routine work to those skilled in the art.
In the following passage, with way of example the present invention is described more specifically with reference to accompanying drawing.Will be clearer according to following explanation and claims advantages and features of the invention.It should be noted that accompanying drawing all adopts very the form of simplifying and all uses non-ratio accurately, only in order to convenient, the purpose of the aid illustration embodiment of the invention lucidly.
Usually, before each data line driver element and scanning line driving unit being bundled in data line driver element equipment district and scanning line driving unit equipment district, need carrying out image quality and detect (visual test), whether have abnormal color demonstration to detect.After the image quality detection is finished, need to guarantee the independence of each signal wire, so that after binding data line driver element and scanning line driving unit, product can operate as normal.
In actual production, after finishing, obtain independently each signal wire in the image quality detection, no matter adopt short circuit-laser to blow method, or the TFT shoulder rotation, all will use short bar, in order to be connected synchronously with each described signal wire, detect to carry out image quality, and after finishing the image quality detection, ineffective short bar will remain on the liquid crystal panel, and on liquid crystal panel, have unnecessary cabling, be easy to increase the probability that produces static.Described in addition unnecessary cabling can take certain space, also is unfavorable for the development trend of the narrow frame of LCD.
For this reason, the present inventor has proposed a kind of picture quality detection method, by when carrying out the image quality detection, utilizes the movable conductive lead wire that is easy to remove to transmit in order to carry out the signal that image quality detects to the image quality detecting unit; And image quality detect finish after, remove described movable conductive lead wire, can image quality detect finish after, can residual unnecessary cabling on substrate, and then, reduce the probability that produces static.Further, because the liquid crystal panel in the picture quality detection method of the present invention can save short bar, therefore help the development trend of the narrow frame of LCD.In addition, therefore the liquid crystal panel in the picture quality detection method of the present invention can greatly reduce manufacturing cost, simplified manufacturing technique owing to save short bar.
As first embodiment of picture quality detection method provided by the invention, the concrete steps of carrying out the image quality detection comprise:
At first, connect each signal wire with movable conductive lead wire; In order to will divide together, carry out synchronous detection all signal wire short circuits of one group.
In the present embodiment, described signal wire is a sweep trace; Described movable conductive lead wire is a conductive rubber.Only need described conductive rubber is pressed on each described sweep trace, can realize that described movable conductive lead wire is connected with the synchronous of each described sweep trace.
Subsequently, provide drive signal to described signal wire, described drive signal transfers to the image quality detecting unit via described movable conductive lead wire and detects to carry out image quality.
Described drive signal is a sweep signal; Described sweep signal transfers to described conductive rubber place via sweep trace, transfers to the image quality detecting unit via described conductive rubber again and detects to carry out image quality.Described image quality detecting unit means in the actual production so as to carrying out module or the equipment that image quality detects.Those skilled in the art can use any classic method the signal that transfers to described image quality detecting unit is carried out the image quality detection, repeat no more.
Picture quality detection method introducing activity conductive lead wire provided by the invention as conductive rubber, makes described movable conductive lead wire both can transmit detection signal when having carried out the image quality detection; Can after finishing, the image quality detection be easy to be removed again, and can residual unnecessary cabling on substrate.
At last, image quality removes described movable conductive lead wire after detecting and finishing.
Among first embodiment, after the image quality detection is finished,, only need to remove as the conductive rubber of described movable conductive lead wire to get final product for removing described movable conductive lead wire.
In second embodiment of picture quality detection method of the present invention, described signal wire also can be data line.Among this embodiment, described movable conductive lead wire still can be conductive rubber.Only need described conductive rubber is pressed on each described data line, can realize that described movable conductive lead wire is connected with the synchronous of each described signal wire.Therefore second embodiment only is with the difference of first embodiment: carry out the image quality detection signal wire choose differently, what signal wire was chosen among first embodiment is sweep trace, is signal wire and signal wire is chosen among second embodiment.
In the 3rd embodiment of picture quality detection method of the present invention, can comprise the conduction contact region in the described movable conductive lead wire, described conduction contact region is a conductive rubber, described movable conductive lead wire is connected via the described signal wire of conductive rubber and each; The 3rd embodiment is with the difference of first and second embodiment: the structure of described movable conductive lead wire is different.In other words, having only the part that is connected with described signal wire in the described movable conductive lead wire is conductive rubber, other parts can be any conductive material, only need to guarantee to utilize described movable conductive lead wire detection signal can be got final product by signal wire transmits to described image quality detecting unit.Preferably, the contact region in each described signal line group is located along the same line in the specific embodiment of the present invention.Certainly in some other embodiment of the present invention, the contact region in each described signal line group can not be located along the same line yet, under this kind situation, can be by changing the configuration of described movable conductive lead wire, and for example broken line shape adapts with it.
In first to the 3rd embodiment, can on described signal wire, define the contact region, described movable conductive lead wire is connected via the described signal wire of described contact region and each; Described contact region is the definite zone on the described signal wire, and described contact region detects in order to be electrically connected with conductive lead wire to carry out image quality.
In the 4th embodiment of picture quality detection method of the present invention, on described contact region, can be formed with conductive oxide layer, particularly, described conductive oxide material can be tin indium oxide or indium zinc oxide, at this moment, described movable conductive lead wire is connected via the described signal wire of described conductive oxide layer and each.This be because, no matter described signal wire is sweep trace or data line, in actual production, the material of described signal wire all is generally metal, is exposed in the process environments, is easy in each step that processing procedure relates to or oxidized in the interval between each step.And after forming described conductive oxide layer on the described signal wire, described conductive oxide layer both can be used as the protective seam that prevents that metal is oxidized, again because the conduction property that himself has, and can not influence the transmission of detection signal.
In the actual production, form the manufacturing technology steps that described conductive oxide layer need not to increase whole liquid crystal panel.At first, the figure of described contact region can form in same step etching technology with the pixel electrode of liquid crystal panel or the etching figure of common electrode.Particularly, as shown in Figure 5, when etching covers the insulation course 140 of described signal wire 120,, etch figure and the pixel electrode of liquid crystal panel or the figure of common electrode of contact region in the lump by changing the etching figure.Secondly, described conductive oxide layer 160 can form synchronously with pixel electrode in the LCD or common electrode.Particularly, the material of conductive oxide layer described in the 4th embodiment and described pixel electrode or common electrode is tin indium oxide, therefore can form described conductive oxide layer in the lump when forming described pixel electrode or common electrode.
Use the 4th embodiment and carry out image quality when detecting, as shown in Figure 6, described movable conductive lead wire 180 (as conductive rubber) via as described in conductive oxide layer 160 with as described in signal wire 120 be connected.
The present invention also provides a kind of picture quality detection circuit, detects in order to signal line group is carried out image quality, and described signal line group comprises at least two signal line, and each described signal wire has the contact region; Described picture quality detection circuit comprises:
Movable conductive lead wire flexibly connects in order to the contact region with each described signal wire.
In first embodiment of described picture quality detection circuit, described signal wire is a sweep trace.Described movable conductive lead wire is a conductive rubber.Utilize described picture quality detection circuit to carry out image quality when detecting, only need described conductive rubber is pressed on each described sweep trace, can realize being connected of described movable conductive lead wire and each described sweep trace.Described image quality detecting unit means in the actual production so as to carrying out module or the equipment that image quality detects.Those skilled in the art can use any classic method the signal that transfers to described image quality detecting unit is carried out the image quality detection, repeat no more.After the image quality detection is finished, only need to remove as the conductive rubber of described movable conductive lead wire to get final product.
The difference of picture quality detection circuit first embodiment and traditional picture quality detection circuit promptly is: introducing activity conductive lead wire, as conductive rubber, substitute the conductive lead wire that is formed in the traditional handicraft on the substrate, make described movable conductive lead wire both can when having carried out the image quality detection, transmit detection signal; Can after finishing, the image quality detection be easy to be removed again, and can residual unnecessary cabling on substrate.
In second embodiment of picture quality detection circuit of the present invention, described signal wire also can be data line.Among this embodiment, described movable conductive lead wire still can be conductive rubber.Only need described conductive rubber is pressed on each described data line, can realize that described movable conductive lead wire is connected with the synchronous of each described signal wire.The difference of picture quality detection circuit second embodiment and first embodiment only is: it is different to carry out choosing of signal wire that image quality detects, and what signal wire was chosen among first embodiment is sweep trace, is signal wire and signal wire is chosen among second embodiment.
In the 3rd embodiment of picture quality detection circuit of the present invention, can comprise the conduction contact region in the described movable conductive lead wire, described conduction contact region is a conductive rubber, described movable conductive lead wire is connected via the described signal wire of conductive rubber and each; Picture quality detection circuit the 3rd embodiment is with the difference of first and second embodiment: the structure of described movable conductive lead wire is different.In other words, having only the part that is connected with described signal wire in the described movable conductive lead wire is conductive rubber, other parts can be any conductive material, only need to guarantee to utilize described movable conductive lead wire detection signal can be got final product by signal wire transmits to described image quality detecting unit.
In above-mentioned picture quality detection circuit first to the 3rd embodiment, can on described signal wire, define the contact region, described movable conductive lead wire is connected via the described signal wire of described contact region and each; Described contact region is the definite zone on the described signal wire, and described contact region detects in order to be electrically connected with conductive lead wire to carry out image quality.
In the 4th embodiment of picture quality detection circuit of the present invention, on described contact region, can be formed with conductive oxide layer, particularly, described conductive oxide material can be tin indium oxide or indium zinc oxide, at this moment, described movable conductive lead wire is connected via the described signal wire of described conductive oxide layer and each.This be because, no matter described signal wire is sweep trace or data line, in actual production, the material of described signal wire all is generally metal, is exposed in the process environments, is easy in each step that processing procedure relates to or oxidized in the interval between each step.And after forming described conductive oxide layer on the described signal wire, described conductive oxide layer both can be used as the protective seam that prevents that metal is oxidized, again because the conduction property that himself has, and can not influence the transmission of detection signal.
By introducing movable conductive lead wire, can when carrying out the image quality detection, utilize described movable conductive lead wire to the signal of image quality detecting unit transmission in order to detect; And image quality detect finish after, described movable conductive lead wire is removed, can image quality detect finish after, can residual unnecessary cabling on substrate.
The present invention also provides a kind of liquid crystal panel, comprising: first substrate, and second substrate, described second substrate is relative with described first substrate; And liquid crystal layer, place between described first substrate and second substrate, wherein, described first substrate comprises: at least two signal line group, each described signal line group comprises at least two signal line; All have the contact region on each described signal wire, described contact region detects electrical isolation between each described contact region in order to be electrically connected with conductive lead wire to carry out image quality.
In each embodiment of described liquid crystal panel, described signal wire can be sweep trace or data line; On each described contact region, can be formed with conductive oxide layer; Movable conductive lead wire can be connected via the described signal wire of described conductive oxide layer and each.Described conductive oxide layer both can be used as the protective seam that prevents that metal is oxidized, again because the conduction property that himself has, and can not influence the transmission of detection signal.Described conductive oxide is tin indium oxide or indium zinc oxide.Described liquid crystal panel has viewing area and non-display area, and described contact region is positioned at described non-display area.
By when carrying out the image quality detection, introducing activity conductive lead wire; And image quality detect finish after, remove described movable conductive lead wire, can image quality detect finish after, can residual unnecessary cabling on substrate.
Technical scheme of the present invention does not need to be provided with the short bar as background technology, and the frame that helps LCD subtracts narrow.Further, the present invention is not owing to need to be provided with short bar, thereby simplified manufacturing technology steps, saved production cost.
What need emphasize is that not elsewhere specified step all can use conventional methods acquisition, and concrete technological parameter is determined according to product requirement and process conditions.
Although the present invention has been described and has enough described embodiment in detail although describe by the embodiment at this, the applicant does not wish by any way the scope of claims is limited on this details.Other to those skilled in the art advantage and improvement are conspicuous.Therefore, relative broad range the invention is not restricted to represent and the specific detail of describing, equipment and the method and the illustrative example of expression.Therefore, can depart from these details and do not break away from the spirit and scope of the total inventive concept of applicant.
Claims (22)
1. a picture quality detection circuit detects in order to signal line group is carried out image quality, it is characterized in that described signal line group comprises at least two signal line, and each described signal wire has the contact region; Described picture quality detection circuit comprises: movable conductive lead wire flexibly connects in order to the contact region with each described signal wire.
2. picture quality detection circuit according to claim 1 is characterized in that: the number of described signal line group is more than or equal to 2.
3. picture quality detection circuit according to claim 1 is characterized in that: be formed with conductive oxide layer on described contact region, described movable conductive lead wire is connected via the described signal wire of described conductive oxide layer and each.
4. picture quality detection circuit according to claim 3 is characterized in that: the contact region in each described signal line group is located along the same line.
5. picture quality detection circuit according to claim 3 is characterized in that: described conductive oxide is tin indium oxide or indium zinc oxide.
6. picture quality detection circuit according to claim 1 is characterized in that: described movable conductive lead wire is a conductive rubber.
7. picture quality detection circuit according to claim 1 is characterized in that: described movable conductive lead wire has the conduction contact region, and described movable conductive lead wire is connected to each described signal wire via described conduction contact region.
8. picture quality detection circuit according to claim 7 is characterized in that: described conduction contact region is a conductive rubber.
9. picture quality detection circuit according to claim 1 is characterized in that: described signal wire is sweep trace or data line.
10. a picture quality detection method is characterized in that, comprising:
Connect each signal wire with movable conductive lead wire;
Provide drive signal to described signal wire, described drive signal transfers to the image quality detecting unit via described movable conductive lead wire and detects to carry out image quality;
Image quality removes described movable conductive lead wire after detecting and finishing.
11. picture quality detection method according to claim 10 is characterized in that: described movable conductive lead wire is connected with described signal wire via conductive oxide layer, and described conductive oxide layer is formed on the contact region of described signal wire.
12. picture quality detection method according to claim 11 is characterized in that: described conductive oxide is tin indium oxide or indium zinc oxide.
13. picture quality detection method according to claim 10 is characterized in that: described movable conductive lead wire is a conductive rubber.
14. picture quality detection method according to claim 10 is characterized in that: described movable conductive lead wire is connected with each described signal wire via the conduction contact region in it.
15. picture quality detection method according to claim 14 is characterized in that: described conduction contact region is a conductive rubber.
16. picture quality detection method according to claim 10 is characterized in that: described signal wire is sweep trace or data line.
17. a liquid crystal panel comprises:
First substrate,
Second substrate, described second substrate is relative with described first substrate; And
Liquid crystal layer places between described first substrate and second substrate,
Wherein, described first substrate comprises: at least two signal line group, and each described signal line group comprises at least two signal line; All have the contact region on each described signal wire, described contact region detects electrical isolation between each described contact region in order to be electrically connected with conductive lead wire to carry out image quality.
18. liquid crystal panel according to claim 17 is characterized in that: the contact region in each described signal line group is located along the same line.
19. liquid crystal panel according to claim 17 is characterized in that: be formed with conductive oxide layer on each described contact region.
20. liquid crystal panel according to claim 19 is characterized in that: described conductive oxide is tin indium oxide or indium zinc oxide.
21. liquid crystal panel according to claim 17 is characterized in that: described signal wire is sweep trace or data line.
22. liquid crystal panel according to claim 17 is characterized in that: described liquid crystal panel has viewing area and non-display area, and described contact region is positioned at described non-display area.
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| CN200910047597A CN101833909A (en) | 2009-03-10 | 2009-03-10 | Picture quality detection circuit, picture quality detection method and liquid crystal display panel |
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| CN200910047597A CN101833909A (en) | 2009-03-10 | 2009-03-10 | Picture quality detection circuit, picture quality detection method and liquid crystal display panel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106200049A (en) * | 2016-08-31 | 2016-12-07 | 奥英光电（苏州）有限公司 | A kind of picture quality detection method for curved-surface display equipment |
| CN106773388A (en) * | 2016-12-30 | 2017-05-31 | 深圳市华星光电技术有限公司 | The display panel of compatible various frame sizes and the lighting test method of display panel |
-
2009
- 2009-03-10 CN CN200910047597A patent/CN101833909A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106200049A (en) * | 2016-08-31 | 2016-12-07 | 奥英光电（苏州）有限公司 | A kind of picture quality detection method for curved-surface display equipment |
| CN106773388A (en) * | 2016-12-30 | 2017-05-31 | 深圳市华星光电技术有限公司 | The display panel of compatible various frame sizes and the lighting test method of display panel |
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Application publication date: 20100915 |