CN1111757C - Liquid crystal display device - Google Patents
Liquid crystal display device Download PDFInfo
- Publication number
- CN1111757C CN1111757C CN97190478A CN97190478A CN1111757C CN 1111757 C CN1111757 C CN 1111757C CN 97190478 A CN97190478 A CN 97190478A CN 97190478 A CN97190478 A CN 97190478A CN 1111757 C CN1111757 C CN 1111757C
- Authority
- CN
- China
- Prior art keywords
- electrode part
- liquid crystal
- cutting apart
- crystal indicator
- capacitive coupling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136259—Repairing; Defects
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136213—Storage capacitors associated with the pixel electrode
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/13624—Active matrix addressed cells having more than one switching element per pixel
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/1365—Active matrix addressed cells in which the switching element is a two-electrode device
Abstract
In a liquid crystal display device having active elements, the following structure can be realize that pixel regions wouldn't be lost even in case active elements develop short-circuit or patterns are cut. Split electrodes are respectively superposed on an oxide film that is formed on the surface of a coupling layer, and the split electrodes are coupled capacitively through the coupling layer and the oxide film thereby to constitute a pixel electrode of a unitary structure. MIM elements are connected to the split electrodes respectively. Even in case leakage occurs in the junction portion of either MIM element, the other split electrode still properly operates. The same state as when the pattern is cut is established if a defective MIM element is cut off. Even in the case that the pattern is cut, the split electrodes and are coupled capacitively. Therefore, the potential of the defective split electrode can be indirectly controlled upon controlling the potential of the normal split electrode.
Description
Technical field
The present invention relates to liquid crystal indicator, particularly relate to the technology of the defective that remedies the active component that on liquid crystal display, forms.
Technical background
So far, made the liquid crystal indicator that drives with following method: a plurality of pixel regions are set sandwiching between two substrates on the liquid crystal display that liquid crystal layer forms, active (actively) elements (for example nonlinear element) such as thin film transistor (TFT) (TFT) and metal-insulating body-metal (MIM) element are set in each pixel region, set the show state of each pixel region by these active components.These liquid crystal indicators are for example by carrying out on-off action according to its non-linear active component that makes, control be applied to be connected with active component, the current potential on the pixel capacitors that each pixel region exists, adjusting is added to the voltage on the liquid crystal layer, selects the mesomorphic state in the pixel.
Fig. 5 is that expression comprises the skeleton view as the pattern shape on the substrate of the liquid crystal indicator of the MIM element of active component example.On substrate, be provided with, on wiring layer 2, form the first electrode part 2a at each pixel region G by adhering to the wiring layer 2 that tantalum forms.Form anode oxide film by on the surface of the first electrode part 2a, carrying out anodized, form second electrode 3 that bonding chromium (Cr) forms thereon.Overlapping with the leading section of this second electrode 3, form the transparency electrode corresponding 4 by indium-tin-oxide (ITO) with pixel region G.Also have, when constituting the liquid crystal indicator of reflection-type, sometimes, also transparency electrode 4 as forming with second electrode, 3 all-in-one-piece chromium electrodes.
Substrate facing to forming like this forms transparency electrode on another piece transparency carrier, engage by seal and partition, constitutes dead slot.Form liquid crystal display by in this dead slot, injecting liquid crystal.To each pixel region, (comprising the first electrode part 2a, anode oxide film and second electrode 3) transparency electrode 4 is driven the control of current potential by the MIM element from wiring layer 2.
In liquid crystal indicator as described above, if on the MIM element that in each pixel region G, forms defective takes place, just can not drive this pixel region G, exist the problem that produces display defect.Because the MIM element comprises unsettled metal-insulator junction surface, so, generation is defective easily at the junction surface, in addition, may be caused that also not only all producing the junction surface at the junction surface but also in all places such as wiring portions leaks (short circuit) and pattern disconnection etc. by microtexture.
When the junction surface leakage takes place on the MIM element, opposite with common acting characteristic (solid line among the figure) as shown in Figure 4, the non-linear destruction of current-voltage characteristic (dotted line among the figure), so, can not effectively block action in wiring portion 2 and 4 of pixel capacitors.Also have, when pattern disconnected, supplying with the driving current potential to pixel capacitors 4 was impossible fully after all.
Particularly, in recent years, increasing tendency is, in the normally white liquid crystal indicator, not only when pattern disconnects, be exactly the electric charge that when leakage, can not keep supplying with pixel capacitors, therefore, be white point at this pixel region.Because white point is very showy, so, even only on a part, produce so defective situation, also be fatal defective to liquid crystal indicator.
For the demonstration that the defective that prevents above-mentioned active component causes defective, just like the spy open flat 2-271323 number record like that, the method that a plurality of active components series connection are connected with pixel capacitors.In this case, have on any one active component to take place to leak and also do not show underproof advantage.But, because active component is connected in series, so, the pattern structure complexity is made difficulty, simultaneously, when active component and the generation pattern disconnection of series circuit portion, any way does not have yet, and has owing to connect the problem that the danger of a plurality of active components, pattern disconnection increases on the contrary.
Therefore, the present invention is for addressing the above problem motion, in comprising the liquid crystal indicator of active component, disconnect, also do not lose this pixel region even realized leakage and pattern that active component takes place, can carry out commercialization, so, realized the structure of redetermination.
Disclosure of an invention
The device of the present invention that is used to address the above problem is the liquid crystal indicator that sandwiches liquid crystal layer between at least one a pair of substrate with light transmission, comprise a plurality of pixel regions corresponding with formed pixel capacitors at least one between above-mentioned a pair of substrate, on above-mentioned each pixel region, form a plurality of active components that link to each other with the wiring layer conduction, carrying out capacitive coupling and/or RC a plurality of cutting apart cutting apart the above-mentioned pixel capacitors of formation on the electrode part mutually, above-mentioned each active component conducts electricity continuous with the different above-mentioned electrode part of cutting apart respectively.
According to this device, when on active component, taking place to leak, the controllability of show state reduces because of the electrode part of cutting apart corresponding with this active component, so, by detecting the underproof active component of discovery by showing, disconnecting its connection, drive this indirectly and cut apart electrode part with capacitive coupling and/or the RC electrode part of cutting apart, prevented the generation of display defect.Also have, when near active component or its, pattern taking place and disconnecting, drive the electrode part of cutting apart that pattern disconnected indirectly, prevented the generation of display defect by capacitive coupling or the RC electrode part of cutting apart.
Also have, the coupling of cutting apart between electrode part can be capacitive coupling part, also can be ohmic coupling part, so long as it is just passable to limit the coupling that electric charge moves.Also have, comprise that the two couple state of capacitive character and resistive is also passable.
Here, be as the nonlinear element that comprises that electric conductor-insulator-electric conductor engages with above-mentioned active component.In this case, the leakage that engages owing to electric conductor-insulator-electric conductor takes place easily, so the present invention is effective especially.
In addition, in this case, preferably use at least a metal of the above-mentioned two-terminal type nonlinear element of formation and/or the capacitive coupling structure formation of insulator to carry out capacitive coupling and/or RC coupling part with the above-mentioned electrode part of cutting apart.In this case, same metal and/or the insulator of structure pattern by use and active component do not increase manufacturing process and just can easily form.
Also have, preferably by above-mentionedly cutting apart insulation course that electrode part contact and form and above-mentioned electrode part capacitive coupling and/or the RC junction surface cut apart with the opposed metal level of this contact site with capacity coupled two, in this case, can cut apart at two by metal level respectively and constitute capacitor between electrode part, therefore, can suppress the underproof generation of insulation of insulation course, simultaneously, can utilize the stepped construction of metal level and insulation course to be easy to the manufactured place and carry out capacitive coupling between electrode cutting apart.
In addition, be preferably formed as and above-mentioned electrode part capacitive coupling and/or the RC coupling part cut apart makes it the gap shading cut apart between electrode part above-mentioned.In this case, because coupling part is to cutting apart the gap shading that forms between electrode part, so, can prevent that the light of pixel region from leaking.
Also have, wish on above-mentioned a plurality of positions of cutting apart electrode part, to be connected with above-mentioned active component conduction.In this case, can improve the reliability that active component is connected with the conduction of cutting apart between electrode part.
In addition, in this case,, do not take large space and just can guarantee enough contacts area by the above-mentioned a plurality of positions of configuration on the above-mentioned both sides, bight of cutting apart electrode part.
The simple declaration of accompanying drawing
Fig. 1 represents the skeleton view of the pattern structure on the substrate of embodiment of liquid crystal indicator of the present invention;
Fig. 2 be pattern show the cross sectional illustration figure of the cross-section structure of same embodiment;
Fig. 3 is the skeleton view of pattern structure on the substrate of another embodiment of expression;
Fig. 4 is the curve map of the drive characteristic of expression MIM element;
Fig. 5 is the skeleton view of the pattern structure on the substrate of the expression liquid crystal indicator that comprises existing MIM element.
The best mode that is used to carry out an invention
Then, with reference to an embodiment of the description of drawings liquid crystal indicator relevant with the present invention.Fig. 1 is the plane key diagram (skeleton view) of surface state of a transparency carrier of the liquid crystal indicator of expression embodiments of the invention, Fig. 2 be pattern show the cross-section structure key diagram of the cross-section structure of same embodiment.
Below, as the example of active component, explain the liquid crystal indicator that comprises the MIM element.
On the transparency carrier 10 that glass constitutes, adhere to the tantalum (Ta) of about 500～100 with sputtering method, form tantalum-oxide film 11 by carrying out thermal oxide.This tantalum-oxide film 11 is be used to improve the transparency carrier 10 of alkali-free glass system and aftermentioned wiring layer adhering.
Then, on the surface of tantalum-oxide film 11, adhere to the tantalum (Ta) of about 1200～1800 thickness, after pattern composition in accordance with regulations, form wiring layer (data line) 12 with sputtering method.On this wiring layer 12,, in two places of extending, form the first electrode part 12a, 12b along on each the pixel region G that disposes on the prolonging direction.At this moment, with above-mentioned sputter and composition while, form the coupling layer 13 that tantalum constitutes.
Then, on the first electrode part 12a, 12b, carry out anodized, form anode oxide film 12c in its surface.In addition, on the coupling layer 13 that island forms, can not carry out anodized to former state, therefore, on the surface of coupling layer 13, form oxide film 13a by thermal oxide.
After this, in inert gases such as nitrogen, under 300～450 ℃ the temperature above-mentioned transparency carrier 10 is being carried out thermal treatment (annealing) about two hours, afterwards, Quench in air.On the surface of the crystal liquid substrate of having handled like this 10, adhere to the chromium (Cr) of about 1000 thickness with sputtering method, carry out composition, so that on above-mentioned anode oxide film 12c, form a part, form the second electrode lay 14,15.
At last, adhere to the ITO (indium-tin-oxide) of about 500 thickness, carry out composition with sputtering method.Cut apart electrode part 16,17 for two that are set to the pixel capacitors that on each pixel region G, forms, make it overlapping on the surface of the two conductive connection part 14a of place that are provided with on the above-mentioned the second electrode lay 14,15,14b, 15a, 15b.
Here, form and cut apart electrode part 16,17, make it respectively with overlapping on the oxide film 13a that forms on the surface of above-mentioned coupling layer 13.Therefore, cut apart electrode part 16,17 for two and carry out capacitive coupling, constitute the pixel capacitors 18 of one by coupling layer 13 and oxide film 13a.
In the present embodiment, form two at each pixel region G and cut apart electrode part 16,17, form the MIM element respectively cutting apart on the electrode part 16,17.Also have, cut apart electrode part 16 and 17 and carry out capacitive coupling by coupling layer 13 mutually.Therefore, the MIM element of supposing a certain side has the underproof defective of joint, even leak on the junction surface, electric charge is not moved yet between electrode part cutting apart, and another is cut apart electrode part and normally works.
On the other hand, in the electrode part of cutting apart that is connected with underproof MIM element, because the leakage of MIM element, voltage changes according to the current potential of wiring layer 12 in time.This pace of change depends on by cutting apart electrode part 16,17, carrying out capacity coupled electrostatic capacitance amount with the oxide film 13a of coupling layer 13.
At wiring layer 12 with cut apart when pattern taking place between in the electrode part 16,17 any one disconnecting, become to cut apart to supply with on the electrode part to this that has taken place that pattern disconnects and drive current potential.Yet, cut apart electrode part 16 and 17 for two and carry out capacitive coupling by above-mentioned coupling layer 13 and oxide film 13a, so, by controlling the current potential of cutting apart electrode part normally, also the underproof current potential of cutting apart electrode part can be controlled indirectly, its regular event basically can be made.
In this case, show regular event defective and when guaranteeing that pattern disconnects when suppress to leak taking place, wish that the electrostatic capacitance of capacitive coupling portion is bigger, but should be set at suitable capacitance value according to the relation of liquid crystal capacitance and write time.In the present embodiment, two the capacitive coupling portions of cutting apart the whole length of electrode part 16,17 opposed edges that stride across have been formed, so, can get big electrostatic capacitance amount, on the other hand, because by coupling layer 13 two electric capacity that are connected in series, so, compare with situation about being coupled by an insulation course, capacitance diminishes.
In addition, owing to exist the coupling layer 13 that on the whole length that strides across the opposed edge of cutting apart electrode part 16 and 17, forms with tantalum, so, the gap between electrode part is cut apart in blocking that can optics, therefore, can prevent the leakage in the pixel, simultaneously, form simultaneously in the time of can be with the manufacturing of wiring layer 12, therefore, do not change manufacturing process basically and just can make.
Also have, owing to sandwich oxide film 13a twice cutting apart between electrode part 16 and 17 by coupling layer 13, so, can reduce the incidence that this capacitive coupling portion that reason such as pin hole causes leaks.
When in a MIM element, taking place to leak, the liquid crystal display of making is remained under complete bright state or the half bright state test, (under the situation of normally white display body, transmissivity is big by determining the contrast reduction, can see white) pixel region, can find to leak the defective that causes.Pixel region in the defective generation, determine to engage underproof MIM element, utilize laser etc. to be breaking at the wiring layer corresponding and to cut apart interelectrode conduction and be connected, like this with this MIM element, can become the state identical with the disconnection of above-mentioned pattern, it is defective to eliminate demonstration.
The transmissivity of each pixel when lighting lamp state of present embodiment is adopted in measurement in the normally white transmissive liquid crystal display device, the result, the leakage incidence of MIM element is about 5%, and the incidence that pattern disconnects is less than 1%.If the conducting transmissivity of normal pixel is 1, the conducting transmissivity that the pixel of leakage then takes place in cutting apart a MIM element of electrode part is about 1.2, is about 1.05 with the conducting transmissivity behind the underproof element of laser cutting.Also have, cut apart on the electrode part at one, the conducting transmissivity that the pixel of pattern disconnection takes place is about 1.05.Like this, it is about 10% that the incidence that the result has obtained white-spot defects has reduced after the laser correction, improved yield rate significantly.
In the above-described embodiments, utilize capacitive coupling part to be connected with each other cutting apart electrode part 16,17, but, the such insulation course of oxide film 13a is not set, substitute coupling layer 13 and oxide film 13a by forming resistive layer, also can obtain and above-mentioned essentially identical effect with the conductive material that comprises the proper resistor value.
This is because this resistive layer suppresses to cut apart interelectrode electric charge and moves, and is leaking when taking place, and guarantees when pattern disconnects generation, to make the control of Electric potentials of cutting apart electrode part that links to each other with normal MIM element from the current potential of cutting apart electrode part normally and can transmit.The resistance value of resistive layer is excessive, when approaching insulator, pattern disconnect and leak take place to show under the revised state after taking place defective, when the resistance value of resistive layer is too small, by outward appearance determine to leak side takes place cut apart the electrode difficulty that just becomes.Also have, when resistance value was too small, for the element characteristic of MIM element, the permission amplitude reduced, just comprise the pixel of cutting apart electrode part that is connected with the little MIM element of leakiness, the influence of cutting apart electrode part is normally also become greatly, exists revise the shortcoming that number of picture elements increases.Therefore, according to materials such as the width of the thickness of layer, layer and alloy compositions, the resistance value of resistive layer is adjusted into desirable resistance value.
The number of cutting apart electrode part can be a plurality of, just can greater than 3.Fig. 3 shows three and cuts apart electrode part 41,42,43 carry out the plane pattern of capacitive coupling when forming pixel capacitors 40 mutually by two coupling layers 33,34 in a pixel region G.In this case, utilize the first electrode part 32a, 32b, 32c, not shown anode oxide film, the second electrode lay 35,36,37 to form three MIM elements, be connected to from wiring layer 32 respectively and cut apart on the electrode part 41,42,43.
In this case, also same as the previously described embodiments, even on any one or two MIM element, take place to leak or pattern when disconnecting, also can utilize the pattern that leaks part to cut off to eliminate show defective, even perhaps exist pattern to disconnect, also can the ground action of essentially no fault.
Here, to three cut apart in the electrode part with two cut apart electrode part 41,43 capacity coupled centres cut apart electrode part 42, can be from just not connecting the MIM element originally yet.This is because the situation when arbitrary part generation pattern of this situation and the MIM element that is made of the first electrode part 32c and the second electrode lay 36 disconnects is identical.
In the present embodiment, at Liang Chu (14a among Fig. 1 and Fig. 2,14b, 15a, 15b, 35a among Fig. 3,35b, 36a, 36b, 37a, 37b) be provided with the MIM element the second electrode lay with cut apart the conductive connection part that the electrode part conduction is connected, therefore, reduced the possibility that this part pattern disconnects.In this case, form conductive connection part in the both sides at the junction surface of MIM element, and, in near the both sides of cutting apart the bight of electrode part conductive connection part is set, so, such structure made, also can make the increase in space be suppressed to Min., elemental area is dwindled a lot.
In the above-described embodiments, form the second electrode lay 14,15 as mim structure, but also can utilize and cut apart electrode part 16,17 identical ITO and form the second electrode lay with chromium.In this case, can utilize same operation to form second electrode and pixel capacitors simultaneously, can seek to reduce process number.
Also having, in the above-described embodiments, is that example describes with the transmissive liquid crystal display device, but, in reflection-type liquid-crystal display device, use other metals to replace the transparent electrode part 16,17 of cutting apart, can form pixel capacitors as the electrode in double as reflection horizon.In this case, as this metal, also can be can be integrally formed with above-mentioned the second electrode lay 14,15 chromium electrode.
Also have, it is described that the material of above-mentioned each electric conductor is not limited to the foregoing description, can use various materials.For example also can replace above-mentioned tantalum and use with tantalum as major component, added the alloy of niobium, tungsten, aluminium, molybdenum etc., can also use titanium, molybdenum, aluminium to replace above-mentioned chromium.
In the above-described embodiments, cut apart in each of pixel capacitors and to connect an active component on the electrode part, but be not limited to one, for example also can make a plurality of active components connect or be connected in parallel cutting apart electrode part with cutting apart the active component that electrode part links to each other.Also have, the area of cutting apart electrode part also can be different mutually, and the electrode part of cutting apart with different area can be set.
In addition, in the above-described embodiments, only show and make the simplest a plurality of electrode part example arranged side by side of cutting apart, but, for example, also can be concentric circles ground or a plurality of electrode part of cutting apart are set with one heart horn shape, the centre of gravity place of respectively cutting apart electrode part roughly is positioned on the rough central part of each pixel region.In this case, can reduce pattern and disconnect pixel, the pixel of laser cutting and the differences in appearance of normal pixel that takes place.
Industrial utilizability
As mentioned above, the present invention is in comprising the liquid crystal indicator of active component, has realized namely Make active component that but the knot of leakage and the commercialization that pattern disconnects, this pixel region does not also lose take place Structure.
Claims (7)
1. liquid crystal indicator, this device sandwiches liquid crystal layer between at least one a pair of substrate with light transmission, comprise and the corresponding a plurality of pixel regions of formed pixel capacitors at least one between described a pair of substrate, it is characterized in that: on described each pixel region, form a plurality of active components that link to each other with the wiring layer conduction, carrying out capacitive coupling or RC a plurality of cutting apart cutting apart the described pixel capacitors of formation on the electrode part mutually, described each active component conducts electricity continuous with the different described electrode part of cutting apart respectively.
2. the liquid crystal indicator of claim 1 record, it is characterized in that: described active component is the two-terminal type nonlinear element that comprises that metal-insulator-electric conductor engages.
3. the liquid crystal indicator of claim 2 record, it is characterized in that: carry out capacitive coupling or RC junction surface with the described electrode part of cutting apart, comprise at least a metal and insulator that constitutes described two-terminal type nonlinear element or capacitive coupling structure with electric conductor of proper resistor value.
4. the liquid crystal indicator of claim 1 record is characterized in that: with described electrode part capacitive coupling or the RC junction surface cut apart, by describedly cutting apart the insulation course of electrode part contact and the metal level relative with this contact site forms with two.
5. the liquid crystal indicator of claim 1 record is characterized in that: form and described electrode part capacitive coupling or the RC junction surface cut apart, make it the gap shading of cutting apart between electrode part described.
6. the liquid crystal indicator of arbitrary record among the claim 1-3 is characterized in that: described active component conducts electricity on a plurality of positions and is connected with the described electrode part of cutting apart.
7. the liquid crystal indicator of claim 6 record is characterized in that: the described a plurality of positions of configuration on the described both sides, bight of cutting apart electrode part.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55202/1996 | 1996-03-12 | ||
| JP5520296 | 1996-03-12 | ||
| JP55202/96 | 1996-03-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1190471A CN1190471A (en) | 1998-08-12 |
| CN1111757C true CN1111757C (en) | 2003-06-18 |
Family
ID=12992096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97190478A Expired - Fee Related CN1111757C (en) | 1996-03-12 | 1997-03-10 | Liquid crystal display device |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP3343739B2 (en) |
| KR (1) | KR100493491B1 (en) |
| CN (1) | CN1111757C (en) |
| TW (1) | TW475085B (en) |
| WO (1) | WO1997034190A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419558C (en) * | 2006-11-27 | 2008-09-17 | 友达光电股份有限公司 | LCD panel and array base plate of active element thereof |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001188217A (en) | 1999-10-20 | 2001-07-10 | Sharp Corp | Active matrix liquid crystal display device, and driving method and manufacturing method therefor |
| KR100840312B1 (en) * | 2001-10-05 | 2008-06-20 | 삼성전자주식회사 | a thin film transistor array panel for a liquid crystal display |
| KR100895307B1 (en) * | 2002-09-27 | 2009-05-07 | 삼성전자주식회사 | Liquid crystal display having a pixel including a plurality of subpixels |
| KR100920355B1 (en) * | 2003-03-28 | 2009-10-07 | 삼성전자주식회사 | thin film diode panel for liquid crystal display and liquid crystal display including the panel |
| JP4314926B2 (en) * | 2003-08-04 | 2009-08-19 | セイコーエプソン株式会社 | Electro-optical device, manufacturing method thereof, and electronic apparatus |
| JP4557800B2 (en) * | 2005-05-24 | 2010-10-06 | シャープ株式会社 | Liquid crystal display |
| KR101407287B1 (en) * | 2006-12-19 | 2014-06-16 | 엘지디스플레이 주식회사 | Liquid crystal display device and method for repairing the same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0372324A (en) * | 1989-08-14 | 1991-03-27 | Sharp Corp | Active matrix display device |
| JPH03122618A (en) * | 1989-10-05 | 1991-05-24 | Nec Corp | Thin film two-terminal type active matrix liquid crystal display device |
| JPH03210534A (en) * | 1990-01-16 | 1991-09-13 | Seiko Instr Inc | Two-terminal element |
| JPH05273598A (en) * | 1992-03-25 | 1993-10-22 | Seiko Epson Corp | Liquid crystal display device |
| JP3081357B2 (en) * | 1992-04-15 | 2000-08-28 | 富士通株式会社 | Liquid crystal display device and method of manufacturing the same |
-
1997
- 1997-03-10 JP JP53242697A patent/JP3343739B2/en not_active Expired - Fee Related
- 1997-03-10 KR KR1019970708063A patent/KR100493491B1/en not_active IP Right Cessation
- 1997-03-10 WO PCT/JP1997/000739 patent/WO1997034190A1/en active IP Right Grant
- 1997-03-10 CN CN97190478A patent/CN1111757C/en not_active Expired - Fee Related
- 1997-03-18 TW TW086103356A patent/TW475085B/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419558C (en) * | 2006-11-27 | 2008-09-17 | 友达光电股份有限公司 | LCD panel and array base plate of active element thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100493491B1 (en) | 2005-08-31 |
| TW475085B (en) | 2002-02-01 |
| WO1997034190A1 (en) | 1997-09-18 |
| CN1190471A (en) | 1998-08-12 |
| JP3343739B2 (en) | 2002-11-11 |
| KR19990014721A (en) | 1999-02-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5434686A (en) | Active matrix display device | |
| US6724444B2 (en) | Liquid crystal display device | |
| US20010046003A1 (en) | Thin film transistor substrate for a liquid crystal display and a method for repairing the substrate | |
| EP0604006A2 (en) | Active matrix liquid crystal display cell | |
| US6191832B1 (en) | Active matrix display device and methods for correcting defect thereof | |
| JP2002162914A (en) | Method for darkening pixel | |
| JP2005301226A (en) | Liquid crystal display and display plate used for the same | |
| KR100532087B1 (en) | Liquid crystal display device | |
| TWI406030B (en) | Display device | |
| CN1111757C (en) | Liquid crystal display device | |
| CN100392504C (en) | Liquid crystal display | |
| US4630893A (en) | LCD pixel incorporating segmented back-to-back diode | |
| CN1431547A (en) | Active matrix type display | |
| JP2004258366A (en) | Electrooptical device, manufacturing method of electrooptical device and electronic device | |
| JP3953338B2 (en) | Liquid crystal display | |
| KR101398641B1 (en) | Liquid crystal display | |
| JPH0358024A (en) | Liquid crystal display device | |
| JP3332038B2 (en) | Liquid crystal display | |
| KR100909413B1 (en) | Transverse electric field liquid crystal display device and manufacturing method thereof | |
| WO2005040905A1 (en) | Thin film diode panel and manufacturing method of the same | |
| KR100309778B1 (en) | Color filter for liquid crystal display | |
| JP2664814B2 (en) | Active matrix display device | |
| JPH04265946A (en) | Active matrix display device | |
| JP3062525B2 (en) | Liquid crystal display | |
| CN2763836Y (en) | Storage capacitance and LCD using same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030618 Termination date: 20100310 |