CN101256757A - Display apparatus and circuit restoring method - Google Patents
Display apparatus and circuit restoring method Download PDFInfo
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- CN101256757A CN101256757A CNA2008100902804A CN200810090280A CN101256757A CN 101256757 A CN101256757 A CN 101256757A CN A2008100902804 A CNA2008100902804 A CN A2008100902804A CN 200810090280 A CN200810090280 A CN 200810090280A CN 101256757 A CN101256757 A CN 101256757A
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Abstract
The invention discloses a display device and a circuit restoring method thereof. The display device comprises a control module, a first grid array circuit, a second grid array circuit and an adjustable voltage source. The control module generates at least one control signal. The first grid array circuit is prearranged to be electrically communicated with the control module through a first lead. The second grid array circuit is prearranged to be electrically communicated with the control module through a second lead. The adjustable voltage source is used for providing a prearranged voltage standard position. When the first grid array circuit is disabled, the first grid array circuit is modified to be not communicated with the control module, and the first lead is electrically connected to the adjustable voltage source. The display device operates according to at least one control signal and the prearranged voltage standard position.
Description
Technical field
The present invention relates to a kind of display device and circuit restoring method thereof, in more detail, relate to a kind of at least one grid array (gate on array that has; GOA) display device of circuit reaches in order to repair the circuit restoring method of this at least one grid array circuit.
Background technology
In recent years, the development of flat-panel screens is more and more rapider, has replaced traditional cathode-ray tube display gradually.Flat-panel screens now mainly contains following several: organic light emitting diode display (OrganicLight-Emitting Diodes Display; OLED), plasma display panel (Plasma Display Panel; PDP), LCD (Liquid Crystal Display; LCD) and Field Emission Display (FieldEmission Display; FED) etc.Because LCD possesses advantages such as low power consumption, frivolous and high resolving power, it becomes the main flow of consumer display now already.
The circuit such as driving, control and data of general LCD all adopt external mode to be connected on the glass substrate of LCD.LCD manufacturer normally concentrates on circuit such as driving, control and data on the printed circuit board (PCB), and uses the electric connection between soft wire rod formation printed circuit board (PCB) and the glass substrate.In order further to dwindle the volume of LCD, manufacturer has developed a kind of system's panel (System on Glass that is called, SOG) manufacturing technology, also be about to independently drive originally and circuit such as control directly is made on the glass substrate, to save the space and to reduce the cost that to make driving circuit and control circuit in addition.
As shown in Figure 1, the LCD 1 of general using system panel comprises a display panel 11, a control module 13, gate driver circuit is integrated into glass substrate (Gate On Array; GOA) a grid array circuit 15 and most bar sweep trace (only representing among Fig. 1 for simplicity's sake) with 101,103,105,107,109,111,113,115,117,119.Control module 13 sends difference via plurality of wires and controls signal to grid array circuit 15, in Fig. 1 only with ground connection (Vss) lead 131, starting impulse (start pulse; ST) lead 133, positive frequency (CK) lead 135 and anti-phase frequency (XCK) lead 137 these leads of expression.Grid array circuit 15 promptly according to the control signal that receives via these leads 131,133,135,137 control respectively each sweep trace 101,103 ..., 119 Push And Release.Image data then by the Push And Release of these sweep traces, can show it on display panel 11.
Though the LCD 1 of the described general using system panel of leading portion can with originally independently gate driver circuit directly be made on the glass substrate, significantly to save the space and to reduce the cost that must make driving circuit in addition.If but this grid array circuit that gate driver circuit is integrated into glass substrate is when damaging, owing to be integrated into the characteristic of glass substrate, manufacturer only can abandon the glass substrate that the grid array circuit has damaged, and can't repair it to change the grid array circuit.So will cause and make degree of difficulty and promote and abandon the glass substrate that the grid array circuit damaged and will more significantly increase cost.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of display device and circuit restoring method thereof, when the grid array circuit damages, replaceable is that another is made in the grid array circuit on the glass substrate in advance, to reduce the degree of difficulty of repairing the grid array circuit and to reduce manufacturing cost.
For achieving the above object, the invention provides a kind of display device, it comprises a control module, a first grid array circuit, a second grid array circuit and an adjustable variable potential source.This control module produces at least one control signal.This first grid array circuit is preset as electrically with this control module via one first lead and communicates, and receives this at least one control signal by this first lead.This second grid array circuit then is preset as electrically with this control module via one second lead and communicates, and receives this at least one control signal by this second lead.This adjustable variable potential source is then in order to provide a predeterminated voltage accurate position.When this first grid array circuit anergy, this first grid array circuit changes into electrically with this control module and not communicating, and this first lead is electrically connected to this adjustable variable potential source, this first grid array circuit then receives the accurate position of this predeterminated voltage by this first lead, and this display device is in response to this at least one control signal and the accurate bit motion of this predeterminated voltage.
For achieving the above object, the invention provides a kind of circuit restoring method that is used in the described display device of leading portion.This first lead is electrically connected at this control module and this first grid array circuit, and this second lead is electrically connected at this control module and this second grid array circuit.This circuit restoring method comprises the following step: when this first grid array circuit anergy, cut off this first lead; This first lead is electrically connected at this adjustable variable potential source; Receive the accurate position of this predeterminated voltage by this first lead; And by this this at least one control signal of second lead reception.
In sum, the present invention inserts two grid array circuit in display device, and these two grid array circuit all receive identical control signal by a control module.If find in the detection of manufacturer after display device is made that one of them grid array circuit damages, it can cut off this grid array circuit that has damaged and the electric connection between the control module.And the grid array circuit that this has damaged is electrically connected to the accurate position of a predeterminated voltage.Thus, manufacturer promptly need be when the grid array circuit damage, just whole glass substrate is abandoned, and replaceablely be made in grid array circuit on the glass substrate in advance, to reduce the degree of difficulty of repairing the grid array circuit and to reduce manufacturing cost for another.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is the LCD synoptic diagram of general using system panel;
Fig. 2 A is the synoptic diagram of preferred embodiment of the present invention;
Fig. 2 B is another synoptic diagram of preferred embodiment of the present invention; And
Fig. 3 is the process flow diagram of another preferred embodiment of the present invention.
Wherein, Reference numeral:
1: LCD 11: display panel
13: control module 15: the grid array circuit
101,103,105 119: sweep trace
131: earth lead 133: the starting impulse lead
135: positive frequency lead 137: anti-phase frequency lead
2: display device 20: the accurate position of predeterminated voltage
21: display panel 23: control module
25: first grid array circuit 27: the second grid array circuit
29: the adjustable variable potential source
201,203,205 219: sweep trace
233: the first starting impulse leads of 231: the first earth leads
237: the first anti-phase frequency leads of 235: the first positive frequency leads
253: the second starting impulse leads of 251: the second earth leads
257: the second anti-phase frequency leads of 255: the second positive frequency leads
Embodiment
Preferred embodiment of the present invention is a display device 2 shown in Fig. 2 A, and it can be different types of flat-panel screens, for example organic light emitting diode display, plasma display panel, LCD and Field Emission Display etc.Display device 2 comprises a display panel 21, a control module 23, a first grid array circuit 25, a first grid array circuit 27, an adjustable variable potential source 29 and most bar sweep trace (only representing with 201,203,205,207,209,211,213,215,217,219 among Fig. 2 for simplicity's sake).First grid array circuit 25 promptly is preset as electrically via most bar first leads with control module 23 and communicates.Control module 23 sends difference via these first leads and controls signal to first grid array circuit 25.For simplicity's sake, in Fig. 2, only represent these first leads with first earth lead 231, the first starting impulse lead 233, the first positive frequency lead, the 235 and first anti-phase frequency lead 237.
23 of second grid array circuit 27 and control modules are preset as electrically via most bar second leads and communicate.Control module 23 also sends difference via these second leads and controls signal to second grid array circuit 27.Similarly, for simplicity's sake, in Fig. 2, only represent these second leads with second earth lead 251, the second starting impulse lead 253, the second positive frequency lead, the 255 and second anti-phase frequency lead 257.
First grid array circuit 25 and second grid array circuit 27 promptly according to via the received control signal of first lead 231,233,235,237 and second lead 251,253,255,257 together with control each sweep trace 201,203 ..., 219 Push And Release.Image data then by the Push And Release of these sweep traces, can show it on display panel 21.
What need to specify is, but when the first grid array circuit 25 in the display device 2 and second grid array circuit 27 all during operate as normal, it all receives identical control signal via control module 23.And sweep trace 201,203 ..., 219 Push And Release promptly controls according to first grid array circuit 25 and second grid array circuit 27.
When if display device 2 is found first grid array circuit 25 and second grid array circuit 27 one of them anergy when detecting.For example, when first grid array circuit 25 damages, can be with electrically communicating to change into electrically and not communicating between first lead 231,233,235,237 and the control module 23.Shown in Fig. 2 B, promptly be that the electric connection of first lead 231,233,235,237 and control module 23 is cut off.And first lead 231,233,235,237 is electrically connected to adjustable variable potential source 29.Adjustable variable potential source 29 then provides a predeterminated voltage accurate position 20.First grid array circuit 25 promptly receives the accurate position 20 of predeterminated voltage via first lead 231,233,235,237.
At last, after the described reparation of leading portion, the accurate position 20 of predeterminated voltage will make first grid array circuit 25 present the steady state (SS) of being failure to actuate.And second grid array circuit 27 according to control via second lead, 251,253,255,257 received control signals each sweep trace 201,203 ..., 219 Push And Release.And image data still can show it by the Push And Release of these sweep traces on display panel 21.
On the other hand, another preferred embodiment of the present invention then as shown in Figure 3, for being used in the circuit restoring method of the described display device 2 of leading portion.Its flow process i.e. each step as described below.
At first execution in step 301, when first grid array circuit anergy, and with laser cutting first lead, for example first earth lead 231, the first starting impulse lead 233, the first positive frequency lead, the 235 and first anti-phase frequency lead 237.Execution in step 303 subsequently, with these first wire bonds to the adjustable variable potential source, to electrically connect the adjustable variable potential source.Execution in step 305 again, receive the accurate position of predeterminated voltage by first lead.At last, execution in step 307 receives at least one control signal by second lead.
What need to specify is, the mode of cutting off first lead is not limited to laser cutting, and those skilled in the art can use different modes to carry out the cut-out of first lead.Similarly, the electric connection of first lead and adjustable variable potential source also is not limited to welding carries out it, and those skilled in the art also can use different modes to carry out electric connection between first lead and the adjustable variable potential source, do not repeat them here.
From the above, the present invention inserts two grid array circuit in advance in display device makes.If find in the detection of manufacturer after display device is made that one of them grid array circuit damages, it can cut off this grid array circuit that has damaged and the electric connection between the control module.And the grid array circuit that this has damaged is electrically connected to an adjustable variable potential source, and receive the accurate position of a predeterminated voltage whereby.Thus, manufacturer promptly need be when the grid array circuit damage, just whole glass substrate is abandoned, and replaceablely be made in grid array circuit on the glass substrate in advance, to reduce the degree of difficulty of repairing the grid array circuit and to reduce manufacturing cost for another.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (13)
1. a display device is characterized in that, comprises:
One control module is in order to produce at least one control signal;
One first grid array circuit is preset as electrically with this control module via one first lead and communicates, and receives this at least one control signal by this first lead;
One second grid array circuit is preset as electrically with this control module via one second lead and communicates, and receives this at least one control signal by this second lead; And
One adjustable variable potential source is in order to provide a predeterminated voltage accurate position;
Wherein, when this first grid array circuit anergy, this first grid array circuit changes into electrically with this control module and not communicating, and this first lead is electrically connected to this adjustable variable potential source, this first grid array circuit receives the accurate position of this predeterminated voltage by this first lead, and this display device is in response to this at least one control signal and the accurate bit motion of this predeterminated voltage.
2. display device according to claim 1 is characterized in that, this first lead is an earth lead, and this first grid array circuit receives the accurate position of this predeterminated voltage by this earth lead.
3. display device according to claim 1 is characterized in that, this first lead is a starting impulse lead, and this first grid array circuit system receives the accurate position of this predeterminated voltage by this starting impulse lead.
4. display device according to claim 1 is characterized in that, this first lead is a positive frequency lead, and this first grid array circuit receives the accurate position of this predeterminated voltage by this positive frequency lead.
5. display device according to claim 1 is characterized in that, this first lead is an anti-phase frequency lead, and this first grid array circuit receives the accurate position of this predeterminated voltage by this anti-phase frequency lead.
6. circuit restoring method that is used in the described display device of claim 1, this first lead is electrically connected at this control module and this first grid array circuit, this second lead is electrically connected at this control module and this second grid array circuit, and this method for repairing circuit comprises the following step:
When this first grid array circuit anergy, cut off this first lead;
This first lead is electrically connected at this adjustable variable potential source;
Receive the accurate position of this predeterminated voltage by this first lead; And
Receive this at least one control signal by this second lead.
7. circuit restoring method according to claim 6 is characterized in that, this cut-out step also comprises following steps:
With this first lead of laser cutting.
8. circuit restoring method according to claim 6 is characterized in that, this electric connection step also comprises following steps:
With this first wire bonds to this adjustable variable potential source.
9. a display device is characterized in that, comprises:
One control module is in order to produce at least one control signal;
One adjustable variable potential source is in order to provide a predeterminated voltage accurate position;
One first grid array circuit electrically connects via one first lead and this adjustable variable potential source, and receives the accurate position of this predeterminated voltage by this first lead; And
One second grid array circuit electrically connects via one second lead and this control module, and receives this at least one control signal by this second lead;
This display device is in response to this at least one control signal and the accurate bit motion of this predeterminated voltage.
10. display device according to claim 9 is characterized in that, this first lead is an earth lead, and this first grid array circuit receives the accurate position of this predeterminated voltage by this earth lead.
11. display device according to claim 9 is characterized in that, this first lead is a starting impulse lead, and this first grid array circuit receives the accurate position of this predeterminated voltage by this starting impulse lead.
12. display device according to claim 9 is characterized in that, this first lead is a positive frequency lead, and this first grid array circuit receives the accurate position of this predeterminated voltage by this positive frequency lead.
13. display device according to claim 9 is characterized in that, this first lead is an anti-phase frequency lead, and this first grid array circuit receives the accurate position of this predeterminated voltage by this anti-phase frequency lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100902804A CN101256757B (en) | 2008-04-17 | 2008-04-17 | Display apparatus and circuit restoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100902804A CN101256757B (en) | 2008-04-17 | 2008-04-17 | Display apparatus and circuit restoring method |
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| Publication Number | Publication Date |
|---|---|
| CN101256757A true CN101256757A (en) | 2008-09-03 |
| CN101256757B CN101256757B (en) | 2010-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100902804A Active CN101256757B (en) | 2008-04-17 | 2008-04-17 | Display apparatus and circuit restoring method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592801B (en) * | 2008-05-28 | 2011-05-04 | 乐金显示有限公司 | Liquid crystal display and method for repairing the same |
| CN106292097A (en) * | 2016-10-25 | 2017-01-04 | 武汉华星光电技术有限公司 | Liquid crystal panel electric connection structure, liquid crystal panel and liquid crystal display |
-
2008
- 2008-04-17 CN CN2008100902804A patent/CN101256757B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592801B (en) * | 2008-05-28 | 2011-05-04 | 乐金显示有限公司 | Liquid crystal display and method for repairing the same |
| CN106292097A (en) * | 2016-10-25 | 2017-01-04 | 武汉华星光电技术有限公司 | Liquid crystal panel electric connection structure, liquid crystal panel and liquid crystal display |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101256757B (en) | 2010-06-02 |
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