CN100485464C - Liquid crystal display panel and liquid crystal display device thereof - Google Patents
Liquid crystal display panel and liquid crystal display device thereof Download PDFInfo
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- CN100485464C CN100485464C CNB2005100974758A CN200510097475A CN100485464C CN 100485464 C CN100485464 C CN 100485464C CN B2005100974758 A CNB2005100974758 A CN B2005100974758A CN 200510097475 A CN200510097475 A CN 200510097475A CN 100485464 C CN100485464 C CN 100485464C
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Abstract
The invention relates to liquid crystal display board and liquid crystal display device. The liquid crystal display board is connected with the control circuit board, and the control circuit board output at least one common voltage. The liquid crystal display board includes at least one electric crystal base with plain conductor, a color filter plate with a common electrode layer and mounted facing the electric crystal base, a liquid crystal layer formed between the electric crystal base and the color filter plate, and at least one image data driving and collecting circuit. The image data driving and collecting circuit is mounted on the electric crystal base, and has a common voltage buffering circuit, and the common voltage is input to the common voltage buffering circuit by the plain conductor, and output to the common electrode layer. Because of the common voltage buffering circuit, the common voltage output by the control circuit plate will make the current in the plain conductor become smaller, and the great voltage drop will not be produce in the conductor, and the common voltage of common electrode layer could keep stability.
Description
Technical field
The present invention relates to a kind of display panels and liquid crystal indicator thereof, particularly relate to a kind of display panels and liquid crystal indicator thereof that an image data drive IC directly is bonding on a glass substrate.
Background technology
Existing known liquid crystal indicator mainly is to comprise a display panels and a module backlight.Seeing also shown in Figure 1ly, is one to show the longitudinal profile synoptic diagram of existing known display panels, and existing known display panels mainly comprises a transistor base 11, a color filter 12 and a liquid crystal layer 13.Wherein, liquid crystal layer 13 is to seal up for safekeeping between transistor base 11 and color filter 12 by seal glue 14.
Liquid crystal in the liquid crystal layer 13 mainly is via the transistorized electrode on the transistor base 11 and is formed at the effect of the counter electrode layer 121 (common electrode layer) on the color filter 12 and its angle is changed.And the light source that module backlight provided (shown in the arrow among Fig. 1) is according to the variation of liquid crystal angle and by liquid crystal layer and through color filter 12 tonings, and then penetrates from color filter 12.
Seeing also shown in Figure 2ly, is the structural representation that shows existing known display panels and control circuit board binding.Generally speaking, have the common electric voltage V of known counter electrode layer 121 now
ComBe by a control circuit board 15 outputs mostly, through a link component 17 conduction on the connected circuit substrate 16 (X-board that promptly is commonly called as), and input to a pliability circuit substrate 18 that is provided with an image data drive integrated circult (being designated hereinafter simply as the image data drive IC) 19, and then be sent to counter electrode layer 121 via the lead on pliability circuit substrate 18 and the transistor base 11.Plant circuit constitutes at this point, because voltage or signal that this control circuit board 15 is exported must can input to respectively in transistor base 11 and the counter electrode layer 121 by connected circuit substrate 16 and pliability circuit substrate 18, therefore also has the problem of reliability the problem on cost is arranged.In addition, because common electric voltage V
ComBe to be sent to counter electrode layer 121 via the lead on link component 17, connected circuit substrate 16, pliability circuit substrate 18 and the transistor base 11, therefore on this path of transmitting, can produce impedance not of uniform size, in other words, the common electric voltage V that is exported by control circuit board 15
ComSize will be subjected to the impedance influences of transfer path and different, that is to say that the common electric voltage value size that is input to counter electrode layer 121 each point can be inequality, and is like this then can cause the interference phenomenon (cross talk) of intermeshing.
Recently, therefore the dealer develops the side that directly the image data drive IC directly is arranged at transistor base 11 for reducing production costs, and so can remove from and use connected circuit substrate 16 and pliability circuit substrate 18, and then can reach and reduce production costs.Seeing also shown in Figure 3ly, is to show another existing known display panels and the structural representation that control circuit board links, and promptly is the synoptic diagram of an embodiment of the direct side that image data drive IC 19 directly is placed in transistor base 11 shown in the figure.As shown in Figure 3, the common electric voltage V that is exported by this control circuit board 15
ComBe directly to conduct to counter electrode layer 121 via the plain conductor on the transistor base 11 111.Though constituting, this kind circuit can reduce production costs, for its not effectively improvement of interference phenomenon of intermeshing, because common electric voltage V
ComValue still can be subjected to the impedance influences of the plain conductor 111 on the transistor base 11.
In order effectively to solve common electric voltage V
ComBe subjected to the impedance influences of plain conductor, there is the dealer that one inner lead 191 more is set in image data drive IC 19, see also shown in Figure 4, be to show the another existing known display panels and the structural representation of control circuit board binding, plain conductor 112 on the transistor base 11, be to be electrically connected on an inner lead 191 that is provided with in the image data drive IC 19 respectively, can improve common electric voltage V though this kind circuit structure constitutes
ComBe subjected to the impedance influences of plain conductor, but still have the interference phenomenon of intermeshing.
This shows that above-mentioned existing display panels and liquid crystal indicator thereof obviously still have inconvenience and defective, and demand urgently further being improved in structure and use.In order to solve the problem that display panels and liquid crystal indicator thereof exist, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, therefore, how a kind of display panels and liquid crystal indicator thereof with stable common electric voltage is provided is an important problem in fact, also is the target that the anxious desire of relevant dealer solves.
Because the defective that above-mentioned existing display panels and liquid crystal indicator thereof exist, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of display panels and the liquid crystal indicator thereof of founding a kind of new structure, can improve general existing product, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
The objective of the invention is to, overcome the defective that existing display panels exists, and a kind of display panels of new structure is provided, technical matters to be solved is to make it that a kind of display panels with stable common electric voltage is provided, thereby is suitable for practicality more.
Another object of the present invention is to, overcome the defective that existing liquid crystal indicator exists, and a kind of liquid crystal indicator of new structure is provided, technical matters to be solved is to make it that a kind of liquid crystal indicator with stable common electric voltage is provided, thereby is suitable for practicality more.
The object of the invention to solve the technical problems realizes by the following technical solutions.According to a kind of display panels that the present invention proposes, it is to electrically connect a control circuit board, and this control circuit board is to export energising altogether at least to press, and this display panels comprises: a transistor base, and it has a plain conductor at least; One color filter, it has a common electrode layer, and itself and this transistor base is established in opposite directions; One liquid crystal layer, it is formed between this transistor base and the color filter; And at least one image data drive integrated circult, it is arranged on this transistor base, and it has energising altogether and presses buffer circuit, and this common electric voltage is to input to this common electric voltage buffer circuit via this plain conductor, through this common electric voltage buffer circuit action, and export this common electrode layer to.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid display panels, wherein said common electric voltage buffer circuit has an input terminal and a lead-out terminal, this input terminal and this plain conductor electrically connect, this lead-out terminal and this common electrode layer electrically connect, and this common electric voltage is to input to this common electric voltage buffer circuit via this input terminal to export this common electrode layer to through lead-out terminal again.
Aforesaid display panels, wherein said transistor base are a thin film transistor (TFT) glass substrate.
Aforesaid display panels, wherein said image data drive integrated circult more comprises an image data buffering circuit, a D/A conversion circuit and an image data output buffer, wherein this image data buffering circuit is to receive the digital image data that this control circuit board is exported, this D/A conversion circuit is to convert the digital image data that this control circuit board is exported to the analog image data, and this analog image data is via this image data output buffer output.
Aforesaid display panels, wherein said common electric voltage buffer circuit are to be an operational amplifier.
Aforesaid display panels, wherein said operational amplifier are to be a negative feedback operational amplifier.
Aforesaid display panels, wherein said image data drive integrated circult are to cover crystalline substance to be bonding on this transistor base.
Aforesaid display panels, wherein said image data drive integrated circult are to be a chip packing-body.
The object of the invention to solve the technical problems adopts following technical scheme to realize again.According to a kind of display panels that the present invention proposes, it is to electrically connect a control circuit board, and this control circuit board is to export energising altogether at least to press, and this display panels comprises: a transistor base, and it has a plain conductor at least; One color filter, it has a common electrode layer, and itself and this transistor base is established in opposite directions; One liquid crystal layer, it is formed between this transistor base and the color filter; And at least one common electric voltage buffer circuit, it is arranged on this transistor base, and this common electric voltage is to input to this common electric voltage buffer circuit via this plain conductor, exports this common electrode layer to through this common electric voltage buffer circuit action.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid liquid crystal indicator, wherein said common electric voltage buffer circuit are to be an operational amplifier.
Aforesaid liquid crystal indicator, wherein said operational amplifier are to be a negative feedback operational amplifier.
Aforesaid liquid crystal indicator, wherein said common electric voltage buffer circuit are to be a single-chip integrated circuit.
Aforesaid liquid crystal indicator, wherein said common electric voltage buffer circuit is to be made of thin film transistor (TFT).
The object of the invention to solve the technical problems also adopts following technical scheme to realize.A kind of liquid crystal indicator according to the present invention's proposition, it comprises a display panels and a module backlight, this display panels electrically connects a control circuit board, this control circuit board is to export energising altogether at least to press, this display panels comprises: a transistor base, and it has a plain conductor at least; One color filter, it has a common electrode layer, and itself and this transistor base is established in opposite directions; One liquid crystal layer, it is formed between this transistor base and the color filter; And at least one image data drive integrated circult, it is arranged on this transistor base, it has energising altogether and presses buffer circuit, and this common electric voltage is to input to this common electric voltage buffer circuit via this plain conductor, exports this common electrode layer to through this common electric voltage buffer circuit action.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid liquid crystal indicator, wherein said common electric voltage buffer circuit has an input terminal and a lead-out terminal, this input terminal is to electrically connect with this plain conductor, this lead-out terminal is to electrically connect with this common electrode layer, and this common electric voltage is to input to this common electric voltage buffer circuit via this input terminal to export this common electrode layer to through lead-out terminal again.
Aforesaid liquid crystal indicator, wherein said transistor base are a thin film transistor (TFT) glass substrate.
Aforesaid liquid crystal indicator, wherein said image data drive integrated circult more comprises an image data buffering circuit, a D/A conversion circuit and an image data output buffer, wherein this image data buffering circuit is to receive the digital image data that this control circuit board is exported, this D/A conversion circuit is to convert the digital image data that this this control circuit board is exported to the analog image data, and this analog image data is via this image data output buffer output.
Aforesaid liquid crystal indicator, wherein said common electric voltage buffer circuit are to be an operational amplifier.
Aforesaid liquid crystal indicator, wherein said operational amplifier are to be a negative feedback operational amplifier.
Aforesaid liquid crystal indicator, wherein said image data drive integrated circult are to cover crystalline substance to be bonding on this transistor base.
Aforesaid liquid crystal indicator, wherein said image data drive integrated circult are to be a chip packing-body.
The present invention compared with prior art has tangible advantage and beneficial effect.By technique scheme, display panels of the present invention and liquid crystal indicator thereof have following advantage at least:
In order to achieve the above object, the invention provides a kind of display panels, it is to electrically connect a control circuit board, and control circuit board is to export energising altogether at least to press.Display panels is to comprise that a transistor base, that has a plain conductor at least has a common electrode layer, and and the color filter, established in opposite directions of transistor base is formed at liquid crystal layer and at least one image data drive integrated circult between this transistor base and the color filter, it is arranged on the transistor base, it has energising altogether and presses buffer circuit, and common electric voltage is to input to the common electric voltage buffer circuit via plain conductor, exports the common electrode layer to through the action of common electric voltage buffer circuit.
Again, in order to achieve the above object, the present invention also provides another kind of display panels, and it is to electrically connect a control circuit board, and control circuit board is to export energising altogether at least to press.Display panels comprises that a transistor base, that has a plain conductor at least has a common electrode layer, and and the color filter, established in opposite directions of transistor base is formed at liquid crystal layer and at least one common electric voltage buffer circuit between this transistor base and the color filter, it is to be arranged on the transistor base, common electric voltage is to input to the common electric voltage buffer circuit via plain conductor, exports the common electrode layer to through the action of common electric voltage buffer circuit.
From the above, because according to display panels of the present invention is to have the common electric voltage buffer circuit, therefore the common electric voltage of being exported by control circuit board can diminish its electric current on plain conductor because of the action of common electric voltage buffer circuit, that is to say, because the effect of common electric voltage buffer circuit, to make common electric voltage can not produce very big pressure drop on plain conductor, the common electric voltage pressure value that therefore exports the common electrode layer to can be guaranteed to stablize.
In addition, in order to achieve the above object, the present invention also provides a kind of liquid crystal indicator, and it comprises a display panels and a module backlight, and display panels is to electrically connect a control circuit board, and control circuit board is to export energising altogether at least to press.Wherein, display panels comprises that a transistor base, that has a plain conductor at least has a common electrode layer, and and the color filter, established in opposite directions of transistor base is formed at liquid crystal layer and at least one common electric voltage buffer circuit between this transistor base and the color filter, it is arranged on the transistor base, common electric voltage is to input to the common electric voltage buffer circuit via plain conductor, exports the common electrode layer to through the action of common electric voltage buffer circuit.
From the above, because according to liquid crystal indicator of the present invention is to have the common electric voltage buffer circuit, therefore the common electric voltage of being exported by control circuit board can diminish its electric current on plain conductor because of the action of common electric voltage buffer circuit, that is to say, because the effect of common electric voltage buffer circuit, to make common electric voltage can not produce very big pressure drop on plain conductor, the common electric voltage pressure value that therefore exports the common electrode layer to can be guaranteed to stablize.
In sum, the invention provides a kind of display panels with stable common electric voltage, the present invention also provides a kind of liquid crystal indicator with stable common electric voltage in addition.It has above-mentioned many advantages and practical value, no matter bigger improvement is all arranged on product structure or function, have large improvement technically, and produced handy and practical effect, and more existing display panels and liquid crystal indicator thereof have the effect of enhancement, thereby being suitable for practicality more, and having the extensive value of industry, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of instructions, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the longitudinal profile synoptic diagram that a demonstration has known display panels now.
Fig. 2 shows the existing known display panels and the structural representation of control circuit board binding.
Fig. 3 shows another the existing known display panels and the structural representation of control circuit board binding.
Fig. 4 shows the another existing known display panels and the structural representation of control circuit board binding.
Fig. 5 shows according to the display panels of preferred embodiment of the present invention and the structural representation of control circuit board binding.
Fig. 6 is the structural representation of demonstration according to the common electric voltage buffer circuit of the display panels of preferred embodiment of the present invention.
Fig. 7 is the calcspar of demonstration according to the image data drive integrated circult of the display panels of preferred embodiment of the present invention.
Fig. 8 shows according to the display panels of another preferred embodiment of the present invention and the structural representation of control circuit board binding,
11: transistor base 12: color filter
13: liquid crystal layer 14: seal glue
15: control circuit board 21: transistor base
211: plain conductor 22: color filter
221: common electrode layer 24,24 ' image data drive integrated circult
241,241 ' common electric voltage buffer circuit 242,242 ' input terminal
243,243 ' lead-out terminal 244: image data buffering circuit
245: D/A conversion circuit 246: the image data output buffer
V
Com: common electric voltage
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to display panels and its embodiment of liquid crystal indicator, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
By the explanation of embodiment, when can being to reach technological means that predetermined purpose takes and effect to get one more deeply and concrete understanding to the present invention, yet appended graphic only provide with reference to the usefulness of explanation, be not to be used for the present invention is limited.
Seeing also shown in Figure 5ly, is to show according to the display panels of preferred embodiment of the present invention and the structural representation of control circuit board binding.According to the display panels of preferred embodiment of the present invention, be to electrically connect a control circuit board 15, this control circuit board 15 is to export energising altogether at least to press V
ComThis display panels comprises a transistor base 21, a color filter 22, a liquid crystal layer (not indicating among the figure) and at least one image data drive integrated circult 24.
As shown in Figure 5, this transistor base 21 is to have plain conductor 211, and in the present embodiment, transistor base 21 can be the thin film transistor (TFT) glass substrate.
This color filter 22, it has a common electrode layer 221 (ITO electrode layer), and it is to establish in opposite directions with transistor base 21.Liquid crystal layer is to be formed between this transistor base 21 and the color filter 22.
This image data drive integrated circult 24 is to be arranged on the transistor base 21, and generally speaking, it can adopt COG (chip on glass) technology to be arranged on the transistor base 21.Image data drive integrated circult 24 has energising altogether and presses buffer circuit 241, and common electric voltage V
ComBe to input to common electric voltage buffer circuit 241, export common electrode layer 221 to through 241 actions of common electric voltage buffer circuit via plain conductor 211.In the present embodiment, image data drive integrated circult 24 can be a chip packing-body, and it is to be bonding on the transistor base 21 to cover crystalline substance.
Again, seeing also shown in Figure 6ly, is the structural representation that shows according to the common electric voltage buffer circuit of the display panels of preferred embodiment of the present invention.The common electric voltage buffer circuit 241 of this image data drive integrated circult 24 is to can be a degenerative operational amplifier.This common electric voltage buffer circuit 241 is to have an input terminal 242 and a lead-out terminal 243.Input terminal 242 is to electrically connect with plain conductor 211, and lead-out terminal 243 is to electrically connect with common electrode layer 221.Common electric voltage is to input to common electric voltage buffer circuit 241 via input terminal 242 to export common electrode layer 221 to through lead-out terminal again.
In addition, seeing also shown in Figure 7ly, is the calcspar that shows according to the image data drive integrated circult of the display panels of preferred embodiment of the present invention.In the present embodiment, this image data drive integrated circult 24 more comprises an image data buffering circuit 244, a D/A conversion circuit 245 and an image data output buffer 246.Wherein, image data buffering circuit 244 is digital image datas that reception control circuit plate 15 is exported.D/A conversion circuit 245 is to convert the digital image data that control circuit board 15 is exported to the analog image data.This analog image data is via 246 outputs of image data output buffer.
From the above, because the image data drive integrated circult 24 according to display panels of the present invention is to have energising altogether to press buffer circuit 241, therefore the common electric voltage of being exported by control circuit board 15 can diminish its electric current on plain conductor 211 because of 241 actions of common electric voltage buffer circuit, that is to say, because the effect of common electric voltage buffer circuit 241, to make common electric voltage can not produce very big pressure drop on plain conductor 211, the common electric voltage pressure value that therefore exports common electrode layer 221 to can be guaranteed to stablize.That is to say, can avoid the interference of intermeshing according to display panels of the present invention.
See also shown in Figure 8, be to show according to the display panels of another preferred embodiment of the present invention and the structural representation of control circuit board binding, this another embodiment display panels is to electrically connect a control circuit board 15, and this control circuit board 15 is to export energising altogether at least to press V
ComThis display panels, it comprises a transistor base 21, a color filter 22, a liquid crystal layer (not indicating among the figure), at least one image data drive integrated circult 24 ' and at least one common electric voltage buffer circuit 241 '.Wherein, the common electric voltage V that exported of control circuit board 15
ComBe an input terminal 242 ' that is electrically connected on each common electric voltage buffer circuit 241 ' respectively by plain conductor 211, and export common electrode layer 221 to through lead-out terminal 243 ' through the 241 ' action of common electric voltage buffer circuit.
In the present embodiment, each common electric voltage buffer circuit 241 ' is to be a circuit of single-chip integrated (single-chip IC) or can be by being made of thin-film transistor circuit.Certainly, each common electric voltage buffer circuit 241 ' also can be a degenerative operational amplifier.And each common electric voltage buffer circuit 241 ' is directly to be arranged on the transistor base 21.
From the above, because according to display panels of the present invention is to have energising altogether to press buffer circuit 241 ', therefore the common electric voltage of being exported by control circuit board 15 can diminish its electric current on plain conductor 211 because of the 241 ' action of common electric voltage buffer circuit, that is to say, because the effect of common electric voltage buffer circuit 241 ', to make common electric voltage can not produce very big pressure drop on plain conductor 211, the common electric voltage pressure value that therefore exports common electrode layer 221 to can be guaranteed to stablize.That is to say, can avoid the interference of intermeshing according to display panels of the present invention.
Below do explanation with the preferred embodiment of liquid crystal indicator of the present invention, be convenient to understand in order to make, the component symbol among the following embodiment be continue to use with last embodiment in the symbol of similar elements illustrate.
According to the liquid crystal indicator of preferred embodiment of the present invention, be to comprise a display panels and a module backlight.
Please consult shown in Figure 5ly again, this display panels is to electrically connect a control circuit board 15, and this control circuit board 15 is to export energising altogether at least to press.This display panels comprises a transistor base 21, a color filter 22, a liquid crystal layer (not being shown among the figure) and at least one image data drive integrated circult 24.Because the explanation of the structure of the display panels of the liquid crystal indicator of present embodiment is roughly identical with previous embodiment, for avoiding giving unnecessary details so omit its explanation at this.
The above is to be illustrative, but not is restricted.It below only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (21)
1, a kind of display panels, it is to electrically connect a control circuit board, this control circuit board is to export energising altogether at least to press, and it is characterized in that this display panels comprises:
One transistor base, it has a plain conductor at least;
One color filter, it has a common electrode layer, and itself and this transistor base is established in opposite directions;
One liquid crystal layer, it is formed between this transistor base and the color filter; And
At least one image data drive integrated circult, it is arranged on this transistor base, and it has energising altogether and presses buffer circuit, and this common electric voltage is to input to this common electric voltage buffer circuit via this plain conductor, through this common electric voltage buffer circuit action, and export this common electrode layer to.
2, display panels according to claim 1, it is characterized in that wherein said common electric voltage buffer circuit has an input terminal and a lead-out terminal, this input terminal and this plain conductor electrically connect, this lead-out terminal and this common electrode layer electrically connect, and this common electric voltage is to input to this common electric voltage buffer circuit via this input terminal to export this common electrode layer to through lead-out terminal again.
3, display panels according to claim 1 is characterized in that wherein said transistor base is a thin film transistor (TFT) glass substrate.
4, display panels according to claim 1, it is characterized in that wherein said image data drive integrated circult more comprises an image data buffering circuit, a D/A conversion circuit and an image data output buffer, wherein this image data buffering circuit is to receive the digital image data that this control circuit board is exported, this D/A conversion circuit is to convert the digital image data that this control circuit board is exported to the analog image data, and this analog image data is via this image data output buffer output.
5, display panels according to claim 1 is characterized in that wherein said common electric voltage buffer circuit is to be an operational amplifier.
6, display panels according to claim 5 is characterized in that wherein said operational amplifier is to be a negative feedback operational amplifier.
7, display panels according to claim 1 is characterized in that wherein said image data drive integrated circult is to cover crystalline substance to be bonding on this transistor base.
8, display panels according to claim 1 is characterized in that wherein said image data drive integrated circult is to be a chip packing-body.
9, a kind of display panels, it is to electrically connect a control circuit board, this control circuit board is to export energising altogether at least to press, and it is characterized in that this display panels comprises:
One transistor base, it has a plain conductor at least;
One color filter, it has a common electrode layer, and itself and this transistor base is established in opposite directions;
One liquid crystal layer, it is formed between this transistor base and the color filter; And
At least one common electric voltage buffer circuit, it is arranged on this transistor base, and this common electric voltage is to input to this common electric voltage buffer circuit via this plain conductor, exports this common electrode layer to through this common electric voltage buffer circuit action.
10, display panels according to claim 9 is characterized in that wherein said common electric voltage buffer circuit is to be an operational amplifier.
11, display panels according to claim 10 is characterized in that wherein said operational amplifier is to be a negative feedback operational amplifier.
12, display panels according to claim 9 is characterized in that wherein said common electric voltage buffer circuit is to be a single-chip integrated circuit.
13, display panels according to claim 9 is characterized in that wherein said common electric voltage buffer circuit is to be made of thin film transistor (TFT).
14, a kind of liquid crystal indicator, it comprises a display panels and a module backlight, and this display panels electrically connects a control circuit board, and this control circuit board is to export energising altogether at least to press, and it is characterized in that this display panels comprises:
One transistor base, it has a plain conductor at least;
One color filter, it has a common electrode layer, and itself and this transistor base is established in opposite directions;
One liquid crystal layer, it is formed between this transistor base and the color filter; And
At least one image data drive integrated circult, it is arranged on this transistor base, it has energising altogether and presses buffer circuit, and this common electric voltage is to input to this common electric voltage buffer circuit via this plain conductor, exports this common electrode layer to through this common electric voltage buffer circuit action.
15, liquid crystal indicator according to claim 14, it is characterized in that wherein said common electric voltage buffer circuit has an input terminal and a lead-out terminal, this input terminal is to electrically connect with this plain conductor, this lead-out terminal is to electrically connect with this common electrode layer, and this common electric voltage is to input to this common electric voltage buffer circuit via this input terminal to export this common electrode layer to through lead-out terminal again.
16, liquid crystal indicator according to claim 14 is characterized in that wherein said transistor base is a thin film transistor (TFT) glass substrate.
17, liquid crystal indicator according to claim 14, it is characterized in that wherein said image data drive integrated circult more comprises an image data buffering circuit, a D/A conversion circuit and an image data output buffer, wherein this image data buffering circuit is to receive the digital image data that this control circuit board is exported, this D/A conversion circuit is to convert the digital image data that this this control circuit board is exported to the analog image data, and this analog image data is via this image data output buffer output.
18, liquid crystal indicator according to claim 14 is characterized in that wherein said common electric voltage buffer circuit is to be an operational amplifier.
19, liquid crystal indicator according to claim 18 is characterized in that wherein said operational amplifier is to be a negative feedback operational amplifier.
20, liquid crystal indicator according to claim 14 is characterized in that wherein said image data drive integrated circult is to cover crystalline substance to be bonding on this transistor base.
21, liquid crystal indicator according to claim 14 is characterized in that wherein said image data drive integrated circult is to be a chip packing-body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100974758A CN100485464C (en) | 2005-12-28 | 2005-12-28 | Liquid crystal display panel and liquid crystal display device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100974758A CN100485464C (en) | 2005-12-28 | 2005-12-28 | Liquid crystal display panel and liquid crystal display device thereof |
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| CN1991448A CN1991448A (en) | 2007-07-04 |
| CN100485464C true CN100485464C (en) | 2009-05-06 |
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| KR101260665B1 (en) * | 2010-10-08 | 2013-05-10 | 엘지디스플레이 주식회사 | Liquid Crystal Display Device With Interred Touch Screen |
| KR101361707B1 (en) | 2012-05-07 | 2014-02-11 | 엘지디스플레이 주식회사 | Liquid crystal display and method of driving the same |
| CN213303616U (en) * | 2019-11-20 | 2021-05-28 | 联詠科技股份有限公司 | Electronic device and display driving chip |
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