CN101825963B - Embedded touch input display panel - Google Patents

Embedded touch input display panel Download PDF

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Publication number
CN101825963B
CN101825963B CN200910126202XA CN200910126202A CN101825963B CN 101825963 B CN101825963 B CN 101825963B CN 200910126202X A CN200910126202X A CN 200910126202XA CN 200910126202 A CN200910126202 A CN 200910126202A CN 101825963 B CN101825963 B CN 101825963B
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Prior art keywords
display panel
touch input
input display
connection pads
conductive connection
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CN101825963A (en
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阮一中
游家华
林松君
吴许合
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Hannstar Display Corp
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Hannstar Display Corp
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Abstract

The invention discloses an embedded touch input display panel comprising a thin-film transistor substrate and a color filter substrate. The thin-film transistor substrate comprises a network read circuit and a plurality of array conductive connection pads. The network read circuit comprises a plurality of transverse read lines and a plurality of longitudinal read lines, wherein the transverse read lines are electrically connected with the longitudinal read lines. The conductive connection pads are electrically connected to the network read circuit. Multiple pad materials are used for keeping a first gap between the thin-film transistor substrate and the color filter substrate. A plurality of convexes correspond to the conductive connection pads, and a second gap is arranged between the convexes and the conductive pads. A transparent electrode covers the pad materials and the convexes.

Description

Embedded touch input display panel
Technical field
The present invention relates to a kind of method, relate more specifically to a kind of touch-control liquid crystal display panel in order to the contact point coordinate that calculates touch-control liquid crystal display panel, can be in display panels with the interlock circuit design of touch controllable function.
Background technology
Touch technology is one of important application project of display panels, and the mode that realizes touch controllable function mainly is to adopt to add contact panel (such as the contact panel of resistance-type, condenser type, infrared-type or surface acoustic wave type etc.) outside display panels at present.With reference to figure 1, electric resistance touch-control panel 50 is simple and cost is lower because of technology, uses in large quantities on each different terminal is used.Electric resistance touch-control panel 50 many leads capable of using (such as four lines or five lines), and cooperate of the variation of suitable algorithm with monitoring voltage, can judge the position of touching exactly.Yet the said contact panel that adds will cause the optics of display panels or the loss on the correlation properties.
In order to overcome the problems referred to above, the mode of embedded touch panel (In Cell Touch Panel) is proposed at present, the interlock circuit design that also is about to contact panel function (Touch Panel Function) is in display panels.When display panels is made, can accomplish circuit (Touch Panel Function Circuit) in the lump with contact panel function.This touch-control liquid crystal display panel can not lose the optical characteristics of display panels, can reach the purpose of touch-control again.
For example; With reference to figure 2; United States Patent (USP) discloses 2008/0122800A1; Title is " Touch-sensitive Liquid Crystal Display Panel With Built-in Touch MechanismAnd Method For Driving Same (building the touch-control liquid crystal display panel of touch-control mechanism and driving method thereof in having) ", discloses a kind of touch-control liquid crystal display panel 10, comprises first substrate 20, second substrate 30 and liquid crystal layer 40.Said second substrate 30 is configured to respect to said first substrate 20.Said liquid crystal layer 40 is disposed between said first substrate 20 and said second substrate 30.Electrode layer 24 is formed on said first substrate 20, and comprises multi-strip scanning line and data line.These sweep traces and data line intersect each other, define a plurality of pixel regions thus.A plurality of conductive connection pads 22 are configured corresponding to these sweep traces that are electrically connected on electrode layer 24.Conductive layer 32 is disposed between said second substrate 30 and the said liquid crystal layer 40.A plurality of conduction protuberances 34 are configured on the said conductive layer 32, have predetermined gap between each conduction protuberance 34 and the corresponding conductive connection pads 22.
Said first substrate 20 belongs to thin film transistor base plate 12, and it utilizes sweep trace to be used to calculate the contact point coordinate.But therefore the sweep signal of said sweep trace possibly be interfered.Moreover said second substrate 30 belongs to colored filter substrate 14, and it has included transparency electrode 38, but for touch controllable function, must set up said conductive layer 32 and the insulation course 36 with planarization, so will increase manufacturing cost and time.In addition, a plurality of wadding 42 usefulness are so that keep predetermined gap between said thin film transistor base plate 12 and the colored filter substrate 14, and it can ccontaining said liquid crystal layer 40.But these waddings 42 must be accomplished through different operations with conduction protuberance 34, so also will increase manufacturing time.
Therefore, a kind of touch-control liquid crystal display panel need be provided, can solve aforesaid problem.
Summary of the invention
The present invention provides a kind of embedded touch input display panel, and it comprises thin film transistor base plate and colored filter substrate.Said thin film transistor base plate comprises network read circuit and a plurality of array conductive connection pads.Said network read circuit comprises many horizontal read lines and many vertical read lines, and these horizontal read lines are electrically connected on vertical read line.These conductive connection pads are electrically connected on said network read circuit.Said colored filter substrate comprises a plurality of waddings, a plurality of protuberance, transparency electrode and multi-strip scanning line and data line.These waddings are used so that keep first predetermined gap between said thin film transistor base plate and the colored filter substrate.These protuberances are corresponding to these conductive connection pads, and and these conductive connection pads between have second predetermined gap.Said transparency electrode covers these waddings and these protuberances.Wherein these horizontal read lines are parallel to these sweep traces, and these vertical read lines are parallel to these data lines.
The touch-control liquid crystal display panel of said embodiment of the present invention designs the interlock circuit of contact panel function in display panels.When said display panels is made, can accomplish circuit in the lump with contact panel function.Therefore, the touch-control liquid crystal display panel of said embodiment of the present invention does not lose the optical characteristics of display panels, can reach the purpose of touch-control again.Moreover the said colored filter substrate of said embodiment of the present invention must not set up another conductive layer and the insulation course with planarization for touch controllable function, so will can not increase manufacturing cost and time.In addition, these waddings of said embodiment of the present invention and protuberance can with the same material manufacturing, so can not increase manufacturing time through same processes yet.
In order to let above and other objects of the present invention, characteristic and the advantage can be more obvious, hereinafter elaborates conjunction with figs. as follows.
Description of drawings
Fig. 1 is the stereographic map and the cut-away section synoptic diagram of the electric resistance touch-control panel of prior art;
Fig. 2 is the diagrammatic cross-section of the touch-control liquid crystal display panel of prior art;
Fig. 3 is the diagrammatic cross-section of the touch-control liquid crystal display panel of one embodiment of the invention;
Fig. 3 a is the diagrammatic cross-section of the touch-control liquid crystal display panel of another embodiment of the present invention;
Fig. 4 is the perspective exploded view of the touch-control liquid crystal display panel of said embodiment of the present invention;
Fig. 5 and Fig. 6 illustrate the dividing potential drop V of the touch-control liquid crystal display panel of said embodiment of the present invention xAnd V yThe acquisition synoptic diagram;
Fig. 7 illustrates the dividing potential drop V of the touch-control liquid crystal display panel of said embodiment of the present invention xAnd V yCalculate synoptic diagram;
Fig. 8 is the part floor map of the thin film transistor base plate of said embodiment of the present invention;
Fig. 9 is the part floor map of the thin film transistor base plate of alternate embodiment of the present invention;
Figure 10 is the part floor map of the thin film transistor base plate of another embodiment of the present invention;
Figure 11 is the part floor map of the thin film transistor base plate of further embodiment of this invention;
Figure 12 is the cut-away section synoptic diagram of the thin film transistor base plate of further embodiment of this invention;
Figure 13 is the process flow diagram in order to the method for driving liquid crystal panel of the embodiment of the invention;
Figure 14 is the process flow diagram in order to the method for making thin film transistor base plate of the embodiment of the invention; And
Figure 15 is the process flow diagram in order to the method for making colored filter substrate of the embodiment of the invention.
[primary clustering symbol description]
10 display panels, 12 thin film transistor base plates
14 colored filter substrates, 20 substrates
22 conductive connection pads, 24 electrode layers
30 substrates, 32 conductive layers
34 conduction protuberances, 36 insulation courses
38 transparency electrodes, 40 liquid crystal layers
42 waddings, 50 contact panels
100 display panels, 102 conductive layers
102a metal wire 102b metal wire
102c metal wire 102d metal wire
104 conductive layers, 112 thin film transistor base plates
114 colored filter substrates, 120 transparency carriers
124 electrode layers
125 net metal lines, 126 insulation courses
130 transparency carriers, 134 protuberances
134a end face 135 colored filters
137 black matrix"s, 138 transparency electrodes
139 protruding 140 liquid crystal layers
142 wadding 142a end faces
143 bed hedgehopping layers, 152 transverse metal line
154 longitudinal metal lines, 156 junctions
158 conductive connection pads, 160 pixel regions
162 sweep traces, 164 data lines
166 pixel electrodes, 172 plated-through-holes
174 plated-through-holes, 176 metal extended layers
178 plated-through-holes, 182 plated-through-holes
200 step 202 steps
204 step 206 steps
300 step 302 steps
304 step 400 steps
402 step 404 steps
406 step 408 steps
G1 clearance G 2 gaps
G1 ' clearance G 2 ' gap
H difference in height M quantity
The N amount R 1Resistance
R 2Resistance R 3Resistance
R 4Resistance V voltage
V xDividing potential drop V yDividing potential drop
Embodiment
With reference to figure 3, it illustrates the touch-control liquid crystal display panel 100 of the embodiment of the invention, such as embedded touch input display panel.Said touch-control liquid crystal display panel 100 comprises thin film transistor base plate 112, colored filter substrate 114 and liquid crystal layer 140.Said liquid crystal layer 140 is disposed between said thin film transistor base plate 112 and the said colored filter substrate 114.Said thin film transistor base plate 112 comprises transparency carrier 120, electrode layer 124, network read circuit (such as net metal line 125) and first insulation course 126.Said electrode layer 124 is formed at said transparency carrier 120 tops.Said net metal line 125 also is formed at said transparency carrier 120 tops.Said first insulation course 126 is in order to cover said electrode layer 124 and said net metal line 125.
With reference to figure 4, said net metal line 125 comprises the horizontal read line of M bar (such as transverse metal line 152), the vertical read line of N bar (such as longitudinal metal line 154), and wherein M and N are at least greater than 2 integer.These transverse metal lines 152 are electrically connected on longitudinal metal line 154.In the present embodiment, these laterally can have M * N-4 array arrangement with longitudinal metal line 152,154 junction 156 also is that said horizontal and longitudinal metal line 152,154 does not have the junction in four corners of said net metal line 125.In another embodiment, these laterally also can have the junction 156 of M * N array arrangement with longitudinal metal line 152,154.A plurality of array conductive connection pads 158 are electrically connected on said net metal line 125, and configurable these junctions 156 that is adjacent to.
Again with reference to figure 3; In the present embodiment; Said colored filter substrate 114 is with respect to said thin film transistor base plate 112, and comprises transparency carrier 130, a plurality of black matrix" 137, a plurality of colored filter 135, a plurality of wadding 142, a plurality of protuberance 134 and transparency electrode 138.These black matrix"s 137 are disposed on the said transparency carrier 130.These colored filters 135 are disposed on said transparency carrier 130 and these black matrix"s 137, and the colored filter 135 that wherein is positioned on these black matrix"s 137 is formed with protruding 139 respectively.These waddings 142 are disposed on the convexity 139 of these colored filters 135, use so that keep the first predetermined gap G1 between said thin film transistor base plate 112 and the colored filter substrate 114.These protuberances 134 are disposed on these black matrix"s 137, and wherein definition has a height difference H between the end face 134a of the end face 142a of these waddings 142 and these protuberances 134.These waddings 142 can be processed with same material through same processes with these protuberances 134.These protuberances 134 are corresponding to these conductive connection pads 158, and and these conductive connection pads 158 between have the second predetermined gap G2.These protuberances 134 can be processed by non-conductive material.Said transparency electrode 138 covers said transparency carrier 130, these black matrix"s 137, these colored filters 135, these waddings 142 and these protuberances 134.In addition, the configuration density of these conductive connection pads 158 is decided by demand, and the configuration density of these protuberances 134 must be corresponding to the configuration density of these conductive connection pads 158.Yet these waddings 142 must be corresponding to the configuration density of these conductive connection pads 158, and the wadding 142 that therefore only needs a part is adjacent to these protuberances 134, and the wadding 142 of other part must be adjacent to these protuberances 134.
With reference to figure 3a, in another embodiment, said thin film transistor base plate 112 also comprises bed hedgehopping layer 143, and it is formed between said transparency carrier 120 and the wadding 142.Said bed hedgehopping layer 143 can form through the operation of carrying out sweep trace or data line simultaneously.The gap that said bed hedgehopping layer 143 can make these waddings 142 increase said thin film transistor base plate 112 and colored filter substrate 114 is G1 ', and makes these protuberances 134 and the gap of these conductive connection pads 158 increase to G2 '.In other words, utilize the thickness of said bed hedgehopping layer 143 can adjust the gap of these protuberances 134 and these conductive connection pads 158, to reach best touch-control effect.
With reference to figure 5 and Fig. 6, in the present embodiment, can the transparency electrode of said colored filter substrate 114 138 and the net metal line of said thin film transistor base plate 112 be regarded as the two conductive layers up and down 102,104 of 5 wire resistance type touch panels.5 wire resistance type touch principles are four lines (also being periphery four metal line 102a, 102b, 102c, the 102d of lower floor's conductive layer 102) by lower floor's conductive layer 102 control X axles and Y axle, and upper strata conductive layer 104 is responsible for transmitting the voltage of X axle and Y axle when pressing.With regard to present embodiment, because said transparency electrode 138 is the homogeneous conductive layer, therefore when the transparency electrode on arbitrary protuberance 134 138 contacted the conductive connection pads 158 of said net metal line 125, said transparency electrode 138 can be responsible for the work of transmission voltage.With reference to figure 7, contact point T is divided into first and second resistive conductor with said longitudinal metal line and (has first and second resistance R respectively 1, R 2), and the transverse metal line is divided into the 3rd and the 4th resistive conductor (has the 3rd and the 4th resistance R respectively 3, R 4).The dividing potential drop of these resistive conductors is proportional to resistance, and it is shown in following equation:
V x=V×R 3/(R 3+R 4)
V y=V×R 1/(R 1+R 2)
V wherein xBe the dividing potential drop of horizontal the 3rd resistive conductor, V yBe the dividing potential drop of vertical first resistive conductor, and V can be constant voltage 5V.If the diameter of these resistive conductors is identical, then the dividing potential drop of these resistive conductors is proportional to length respectively, and then can calculate the coordinate of said contact point T.
The touch-control liquid crystal display panel of said embodiment of the present invention designs the interlock circuit of touch controllable function in display panels.When said display panels is made, can accomplish circuit in the lump with touch controllable function.Therefore, the touch-control liquid crystal display panel of said embodiment of the present invention can not lose the optical characteristics of display panels, can reach the purpose of touch-control again.Moreover the said colored filter substrate of said embodiment of the present invention must not set up another conductive layer and the insulation course with planarization for touch controllable function, so can not increase manufacturing cost and time.In addition, these waddings and the protuberance of said embodiment of the present invention can be processed with same material through same processes, therefore also can not increase manufacturing time.
With reference to figure 8, in the present embodiment, with regard to said thin film transistor base plate 112, said electrode layer 124 can comprise multi-strip scanning line 162 and data line 164, and it is disposed at said transparency carrier 120 tops.These sweep traces 162 and data line 164 intersect each other, define a plurality of pixel regions 160 thus.These transverse metal lines 152 are parallel to these sweep traces 162, and these longitudinal metal lines 154 are parallel to these data lines 164.These transverse metal lines 152 are positioned at same plane with these sweep traces 162, and these longitudinal metal lines 154 are positioned at same plane with these data lines 164.The those of ordinary skill of technical field can be known under the present invention, is provided with the second insulation course (not shown) between these sweep traces 162 and the data line 164, so also is provided with said second insulation course between these transverse metal lines 152 and the longitudinal metal line 154.Can be through a plurality of plated-through-holes 172,174 be formed in said first and second insulation course, and a plurality of metal extended layers 176 are formed on said first insulation course, in order to these conductive connection pads 158 are electrically connected to said net metal line 125.For example, each conductive connection pads 158 is electrically connected to these transverse metal lines 152 through said metal extended layer 176 and plated-through-hole 172, and is electrically connected to these longitudinal metal lines 154 through said metal extended layer 176 and plated-through-hole 174.Said metal extended layer 176 can be transparent metal and processes.Perhaps, with reference to figure 9, in alternate embodiment, each conductive connection pads 158 directly is electrically connected to said transverse metal line 152 and longitudinal metal line 154 through single plated-through-hole 178.In addition, the wiring density of said transverse metal line 152 and longitudinal metal line 154 is decided by demand, such as per 1,4 or 9 pixel region, 160 configuration one transverse metal line 152 and longitudinal metal lines 154.
With reference to Figure 10, in another embodiment, with regard to said thin film transistor base plate 112, said electrode layer 124 also comprises multi-strip scanning line 162 and data line 164, and it is disposed at said transparency carrier 120 tops.These transverse metal lines 152 and longitudinal metal line 154 are all between these sweep traces 162 and said transparency carrier 120.The those of ordinary skill of technical field can be known under the present invention, is provided with the 3rd insulation course (not shown) between these sweep traces 162 and these transverse metal lines 152 and the longitudinal metal line 154.Can be through a plurality of plated-through-holes 182 be formed in said the 3rd insulation course, in order to these conductive connection pads 158 are electrically connected to said net metal line 125.For example, each conductive connection pads 158 directly is electrically connected to the junction of said transverse metal line 152 and longitudinal metal line 154 through single plated-through-hole 182.
With reference to Figure 11, in another embodiment, with regard to said thin film transistor base plate 112, said electrode layer 124 can comprise a plurality of pixel electrodes 166, and it is disposed at said transparency carrier 120 tops.With reference to Figure 12; These transverse metal lines 152 and longitudinal metal line 154 all are positioned at same plane with these pixel electrodes 166; And expose by said first insulation course, so these conductive connection pads 158 can directly be electrically connected to said net metal line 125, and must be through any plated-through-hole.For example, each conductive connection pads 158 can directly be disposed at the junction of said transverse metal line 152 and longitudinal metal line 154.
With reference to Figure 13, it illustrates the method in order to the contact point coordinate that calculates display panels of one embodiment of the invention.In step 200; Thin film transistor base plate is provided; It comprises net metal line and a plurality of array conductive connection pads; Wherein said net metal line comprises many transverse metal lines, many longitudinal metal lines and a plurality of by these junctions horizontal and the longitudinal metal line is joined, and these conductive connection pads are electrically connected on said net metal line.In step 202; Colored filter substrate is provided; It is relative with said thin film transistor base plate, and comprises a plurality of waddings, a plurality of protuberance and transparency electrode, and wherein these waddings are used so that keep first predetermined gap between said thin film transistor base plate and the colored filter substrate; Have second predetermined gap between each protuberance and the corresponding conductive connection pads, and said transparency electrode covers these waddings and these protuberances.In step 204, at contact point the transparency electrode on the said protuberance is electrically contacted corresponding conductive connection pads, wherein said contact point is divided into laterally first and second resistive conductor and vertically first and second resistive conductor with transverse metal line and longitudinal metal line respectively.In step 206, the dividing potential drop through these resistive conductors is proportional to its length respectively, calculates said contact point coordinate.
With reference to Figure 14, it illustrates the method in order to the manufacturing thin film transistor base plate of one embodiment of the invention.In step 300, transparency carrier is provided.In step 302, be formed on the said transparency carrier net metal is linear, wherein said net metal line comprise many transverse metal lines, many longitudinal metal lines and a plurality of by these laterally and the junction that joined of longitudinal metal line.In step 304, form a plurality of array conductive connection pads, wherein these conductive connection pads are electrically connected on said net metal line.
Again with reference to figure 8 and Fig. 9; The method in order to make thin film transistor base plate of said embodiment of the present invention also can comprise the following step: multi-strip scanning line 162 and data line 164 are formed on the said transparency carrier 120; Wherein these transverse metal lines 152 can be accomplished through same photoengraving carving technology with the formation step of these sweep traces 162, and these longitudinal metal lines 154 can be accomplished through same photoengraving carving technology with the formation step of these data lines 164.
Again with reference to Figure 10; The method in order to make thin film transistor base plate of another embodiment of the present invention also can comprise the following step: multi-strip scanning line 162 and data line 164 are formed on the said transparency carrier 120, and wherein these formation steps that laterally reach longitudinal metal line 152,154 are than the formation step early than these sweep traces 162.
Again with reference to Figure 11; The method in order to make thin film transistor base plate of another embodiment of the present invention also can comprise the following step: a plurality of pixel electrodes 166 are formed on the said transparency carrier 120, and wherein these formation steps that laterally reach longitudinal metal line 152,154 and these pixel electrodes 166 can be accomplished through same photoengraving carving technology.
With reference to Figure 15, it illustrates the method in order to the manufacturing colored filter substrate of one embodiment of the invention.In step 400, transparency carrier is provided.In step 402, a plurality of black matrix"s are formed on the said transparency carrier.In step 404, a plurality of colored filters are formed on said transparency carrier and these black matrix"s, these colored filters that wherein are positioned on these black matrix"s are formed with a convexity respectively.In step 406, through same formation step, a plurality of waddings are formed on the convexity of these colored filters, and simultaneously a plurality of protuberances are formed on these black matrix"s.In step 408, form transparency electrode, it covers said transparency carrier, these black matrix"s, these colored filters, these waddings and these protuberances.
Though the present invention discloses with previous embodiment, yet it is not that the those of ordinary skill of technical field is not breaking away from the spirit and scope of the present invention, when doing various changes and modification under any the present invention in order to qualification the present invention.Therefore protection scope of the present invention should be as the criterion with the scope of accompanying claims.

Claims (12)

1. embedded touch input display panel comprises:
Thin film transistor base plate comprises:
Network read circuit comprises many horizontal read lines, many vertical read lines, and these horizontal read lines are electrically connected on vertical read line; And
A plurality of array conductive connection pads are electrically connected on said network read circuit; And
Colored filter substrate, relative with said thin film transistor base plate, and comprise:
A plurality of waddings are used so that keep first predetermined gap between said thin film transistor base plate and the colored filter substrate;
A plurality of protuberances, corresponding to these conductive connection pads, and and these conductive connection pads between have second predetermined gap;
Transparency electrode covers these waddings and these protuberances; And
Multi-strip scanning line and data line, wherein these horizontal read lines are parallel to these sweep traces, and these vertical read lines are parallel to these data lines.
2. embedded touch input display panel according to claim 1, wherein said network read circuit also comprise a plurality of junctions that joined by these horizontal and vertical read lines, and these conductive connection pads are respectively adjacent in these junctions.
3. embedded touch input display panel according to claim 1, wherein these horizontal read lines and these sweep traces are positioned at same plane, and these vertical read lines and these data line bits are in same plane.
4. embedded touch input display panel according to claim 3 also comprises:
A plurality of plated-through-holes are in order to be electrically connected to said network read circuit with these conductive connection pads.
5. embedded touch input display panel according to claim 4 also comprises:
A plurality of metal extended layers are in order to be electrically connected to these plated-through-holes.
6. embedded touch input display panel according to claim 5, wherein said metal extended layer is processed by transparent metal.
7. embedded touch input display panel according to claim 1 also comprises:
First transparency carrier, wherein these horizontal read lines and vertical read line are all between these sweep traces and said first transparency carrier.
8. embedded touch input display panel according to claim 7 also comprises:
A plurality of plated-through-holes are in order to be electrically connected to said network read circuit with these conductive connection pads.
9. embedded touch input display panel according to claim 1 also comprises:
A plurality of pixel electrodes, wherein these horizontal read lines and vertical read line all are positioned at same plane with these pixel electrodes.
10. embedded touch input display panel according to claim 9, wherein these conductive connection pads directly are electrically connected on said network read circuit.
11. embedded touch input display panel according to claim 10, wherein these conductive connection pads directly are disposed at the junction of these horizontal read lines and vertical read line.
12. embedded touch input display panel according to claim 1, wherein said network read circuit are the net metal line, and said laterally and vertical read line be metal wire.
CN200910126202XA 2009-03-03 2009-03-03 Embedded touch input display panel Active CN101825963B (en)

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CN103164058B (en) * 2011-12-09 2016-02-17 上海天马微电子有限公司 Touch-screen, colored filter substrate, liquid crystal display
CN202795296U (en) * 2012-08-31 2013-03-13 华为终端有限公司 Touch display screen and mobile communication equipment
CN104122722A (en) * 2013-07-16 2014-10-29 深超光电(深圳)有限公司 Liquid crystal display panel
CN106932943A (en) * 2017-04-21 2017-07-07 惠科股份有限公司 Display panel and display device
CN113945232B (en) * 2021-10-15 2022-04-22 广东绿展科技有限公司 Resistance type sensor and preparation method thereof

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Publication number Priority date Publication date Assignee Title
CN100371819C (en) * 2003-10-14 2008-02-27 Lg.菲利浦Lcd株式会社 Liquid crystal display panel and fabricating method thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100371819C (en) * 2003-10-14 2008-02-27 Lg.菲利浦Lcd株式会社 Liquid crystal display panel and fabricating method thereof

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