CN103713414A - Touch liquid crystal display panel and device - Google Patents
Touch liquid crystal display panel and device Download PDFInfo
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- CN103713414A CN103713414A CN201310703713.XA CN201310703713A CN103713414A CN 103713414 A CN103713414 A CN 103713414A CN 201310703713 A CN201310703713 A CN 201310703713A CN 103713414 A CN103713414 A CN 103713414A
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Abstract
The invention discloses a touch liquid crystal display panel and device and belongs to the technical field of liquid crystal display. The touch liquid crystal display panel comprises a color filter substrate, an array substrate, a plurality of grid lines, a plurality of data lines and a touch layer. The data lines and the grid lines are mutually crossed and distributed and are insulated with each other, wherein an area defined by two adjacent data lines and two adjacent grid lines crossed with the two adjacent data lines forms a pixel unit; the touch layer is located on the array substrate, wherein a plurality of sensing electrodes and a plurality of drive electrodes are arranged on the touch layer. The wiring circuit of each sensing electrode and the wiring circuit of each drive electrode are both distributed in comb tooth shapes and both comprise transverse wires and vertical wires, wherein the transverse wires and the vertical wires are arranged oppositely and keep a vertical interval with the grid lines and the data lines respectively, the transverse wires and the vertical wires of the sensing electrodes are electrically connected, and the transverse wires and the vertical wires of the drive electrodes are electrically connected. The light transmittance of the liquid crystal display panel can be improved.
Description
Technical field
The present invention relates to technical field of liquid crystal display, particularly a kind of touch-control liquid crystal display panel and device.
Background technology
Growing along with science and technology, the digitization tools such as mobile phone, personal digital assistant, notebook computer are towards convenient, multi-functional and attractive in appearance future development, wherein display screen is man-machine communication interface indispensable in these equipment, at present, the display screen of main flow mostly adopts lcd technology.On the other hand, fast development and application along with infotech, radio mobile communication and information household appliances, in order to reach more convenient, lighter and handier and more humane object, many information products are by device inputs such as traditional keyboard or mouses, transfer to and use touch panel (Touch Panel) as input media, wherein, touch control type LCD device has become main product.
In existing touch-screen, traditional touch-screen is in display panel outside, to attach other touch modules to form, that is to say, touch-screen and display panel are separate devices, just simply touch-screen is fixed on to display panel the place ahead, form touch control display system, in this manner, touch-screen and display need supporting substrate separately, thereby whole touch control display system need to occupy larger thickness, can not meet the ultra-thin requirement of some hand-held devices and portable set, and be unfavorable for saving production cost.On the other hand, because touch-screen and display panel are separate settings, therefore its attachment process is difficult to bit comparison, and along with the increase of access times, thrust due to finger presses, touch-control module can with display panel generation relative displacement, and then the locating bias can cause touch control operation time.In order to solve the problem that in above-mentioned conventional touch screen, display panel and touch-screen exist due to separate setting, a lot of manufacturers propose the touch sensible parts in touch-screen to be combined in display panel inside, form the touch control display system of " embedded ", i.e. embedded touch display device.But in existing embedded touch display device, row, column both direction need to be set in display panel inside for detecting two detection lines of position, therefore can greatly reduce the aperture opening ratio of display panel, thereby cause the penetration power of display panel to decline.
According to the difference of touch-control display panel principle of work, touch control display panel is divided into resistance-type, condenser type etc., and wherein, capacitance type touch control screen is owing to having life-span length, can support the advantages such as multi-point touch to become the touch screen technology of current main flow.Capacitive touch screen comprises surface capacitance type and projected capacitive, and wherein projected capacitive can be divided into self-capacitance formula and mutual capacitance type again.Self-capacitance formula is at (the Indiumtin oxide of tin indium oxide for glass surface, ITO, a kind of transparent conductive material) be made into induction electrode and driving electrode array, when finger touch arrives capacitance plate, the electric capacity of finger will be added in screen body capacitance, and making to shield body capacitance amount increases.When touching detection, self-capacitance screen detects respectively induction electrode and driving electrode array successively, determines the coordinate of touch point according to the variation of electric capacity before and after touching.The type of drive of self-capacitance, is equivalent to the touch point on touch-screen to project to respectively X-axis and Y direction, then in X-axis and Y direction, calculates coordinate respectively, is finally combined into the coordinate of touch point.The principle of mutual capacitance type touch screen as shown in Figure 1, mutual capacitance screen is also with making induction electrode Rx and drive electrode Tx at glass surface, the difference of it and self-capacitance is, the place that two arrays of electrodes intersects will form coupling capacitance Cm, and this two arrays of electrodes has formed respectively the two poles of the earth of coupling capacitance Cm.When finger touch arrives capacitance plate, affected the coupling between near two electrodes in touch point, thereby changed the size of the coupling capacitance Cm between these two electrodes.While detecting mutual capacitance size, induction electrode sends pumping signal, so drive electrode acknowledge(ment) signal, the capacitance that can obtain so all induction electrodes and drive electrode joint is big or small, i.e. the capacitance size of the two dimensional surface of whole touch-screen.According to touch screen two-dimensional capacitance change data, can calculate the coordinate of each touch point, therefore, even if there are a plurality of touch points on screen, also can calculate the actual coordinate of each touch point.
In existing mutual appearance formula touch-screen, be that induction electrode Rx and drive electrode Tx are made of two-layer ITO conductive material layer respectively, be arranged on two not coplanar parallel surfaces this touch-screen complex manufacturing, and ITO conductive material resistance is larger, affect the precision of touch-screen.But, if adopt lighttight metal wire to make induction electrode Rx and drive electrode Tx, can cause again the transmittance of this touch control type LCD device lower.
Summary of the invention
The invention provides a kind of touch-control liquid crystal display panel and device, to solve the problems such as existing touch control type LCD device transmittance is low.Described touch-control liquid crystal display panel comprises:
Colored filter substrate;
Array base palte;
Many gate lines;
Many data lines, intersect and distribution insulated from each other mutually with described gate line, and wherein two adjacent data lines form a pixel cell with the region that the two adjacent gate lines that intersect surround;
Touch control layer, is positioned on described array base palte;
Wherein, described touch control layer includes a plurality of touch control units, is provided with an induction electrode and at least one drive electrode described in each on touch control unit,
Described induction electrode comprises the vertical wiring that and described data line keep a vertical interval and overlap with described data line in vertical direction, and many and the described gate line horizontal wiring that keeps a vertical interval and overlap with described gate line in vertical direction, described many laterally one end and the described vertical wiring of wiring are electrically connected, described many other end skies that laterally connect up connect
Described drive electrode comprises the vertical wiring that and described data line keep a vertical interval and overlap with described data line in vertical direction, and at least one and the horizontal wiring that keeps a vertical interval and overlap with described gate line in vertical direction of described gate line, described many laterally one end and the described vertical wiring electric connections of wiring, described many other end skies that laterally connect up connect.
In one embodiment of the invention, the horizontal wiring of described induction electrode and the vertical wiring of described induction electrode intersect vertically, and the horizontal wiring of described drive electrode and the vertical wiring of described drive electrode intersect vertically.
In one embodiment of the invention, at least one laterally wiring of described drive electrode is set between the wiring of the adjacent transverse of described induction electrode, at least one laterally wiring of described induction electrode is set between the adjacent transverse wiring of described drive electrode.
In one embodiment of the invention, two laterally wirings that described drive electrode is set between two horizontal wirings of described induction electrode, two laterally wirings that described induction electrode is set between two horizontal wirings of described drive electrode.
In one embodiment of the invention, between two of described induction electrode adjacent transverse wirings or between two adjacent transverse wirings of described drive electrode, be provided with at least one vertical connecting line.
In one embodiment of the invention, the width of the wiring route of described induction electrode and the wiring route of described drive electrode is less than the width of described data line or the width of described gate line.
In one embodiment of the invention, described touch-control liquid crystal display panel also comprise be arranged at described array base palte top upper polaroid, be arranged at cover plate and the liquid crystal layer between array base palte and colored filter substrate of described upper polaroid top, described gate line and described data line are arranged on described array base palte, on described colored filter substrate, form black matrix", the wiring route of described induction electrode and the wiring route of described drive electrode and described black matrix" keep a vertical interval and overlap in vertical direction.
In one embodiment of the invention, described touch control layer is arranged on described array base palte and towards a side of described liquid crystal layer.
In one embodiment of the invention, described touch control layer is arranged on described array base palte and towards a side of upper polaroid, described upper polaroid is arranged at the outside of described array base palte.
The present invention also provides a kind of touch control type LCD device, comprises the touch-control liquid crystal display panel described in any one in claim 1-9.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
By touch control layer is arranged on array base palte, and the wiring route of each induction electrode and the wiring route of each drive electrode include horizontal wiring and the vertical wiring that keeps a vertical interval with gate line and data line respectively and be oppositely arranged, between the horizontal wiring of induction electrode and vertical wiring, be electrically connected, between the horizontal wiring of drive electrode and vertical wiring, be electrically connected.Because the wiring route of induction electrode and drive electrode is all oppositely arranged with gate line and data line, thereby can strengthen back of the body reflection of light, improve brightness, improve the transmittance of display panels.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of instructions, and for above and other object of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the principle schematic of mutual capacitance type touch screen;
Fig. 2 is the cross-sectional view of touch-control liquid crystal display panel in first embodiment of the invention;
Fig. 3 is the structural representation of touch control layer in first embodiment of the invention;
Fig. 4 is the wiring route of the induction electrode of touch-control liquid crystal display panel and the perspective view of the wiring route of drive electrode on pixel cell in first embodiment of the invention;
Fig. 5 is the schematic equivalent circuit of touch-control liquid crystal display panel in first embodiment of the invention;
Fig. 6 is the wiring route of the induction electrode of touch-control liquid crystal display panel and the perspective view of the wiring route of drive electrode on pixel cell in second embodiment of the invention;
Fig. 7 is the cross-sectional view of touch-control liquid crystal display panel in third embodiment of the invention.
Embodiment
For further setting forth the present invention, reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to the touch-control liquid crystal display panel proposing according to the present invention and install its embodiment, structure, feature and effect, be described in detail as follows.
Relevant aforementioned and other technology contents of the present invention, Characteristic, can clearly present in following cooperation in describing in detail with reference to graphic preferred embodiment.By the explanation of embodiment, when can be to reach technological means and the effect that predetermined object takes to be able to more deeply and concrete understanding to the present invention, yet appended graphic being only to provide with reference to the use with explanation be not used for the present invention to be limited.
Embodiment mono-:
Fig. 2 shows the cross-sectional view of touch-control liquid crystal display panel in first embodiment of the invention.Please refer to Fig. 1, the touch-control liquid crystal display panel shown in Fig. 1 comprises: array base palte 12, colored filter substrate 14, the upper polaroid 15 that is arranged at array base palte 12 tops, the lower polaroid 16 that is arranged at colored filter substrate 14 belows, the cover plate 18 that is arranged at polaroid 15 tops and the liquid crystal layer 13 between array base palte 12 and colored filter substrate 14.Described touch-control liquid crystal display panel also comprises touch control layer 101, and wherein, in the present embodiment, touch control layer 101 is arranged on array base palte 12 and towards a side of upper polaroid 15.Be in practical application, the array base palte 12 of this touch-control liquid crystal display panel is positioned at the side near human eye, and colored filter substrate 14 is positioned at a side of the close backlight of display panel, like this, avoided being separated with the problem that conductive layer outside touch control layer 121 affects touch-control effect between between touch control layer 101 and finger.
The concrete structure of touch control layer 101 please refer to Fig. 3, and Fig. 3 is the structural representation in touch control layer 101 in first embodiment of the invention.As shown in Figure 3, the wiring region of touch control layer 101 comprises A, B, C tri-parts, wherein, A is partly positioned at the viewing area of glass substrate, and the touch control layer 101 of A part comprises a plurality of touch control units that consist of the line of induction 201 and drive wire 203, on each touch control unit, be provided with an induction electrode 201 and a plurality of drive electrode 203, induction electrode 201 is positioned on same layer with drive electrode 203 and each drive electrode 203 and adjacent induction electrode 201 formation mutual capacitance; B is partly positioned at the welding region of glass substrate periphery, and induction electrode 201 is routed in A part, B partly for arranging with layer with drive electrode 203; C is partly positioned in the flexible circuit board being connected with the neighboring area of glass substrate, drive electrode 203 and induction electrode 201 are by behind B subregion, be connected with the line of induction (as G1, G2, G3 in Fig. 3) with the drive wire (as Q1, Q2, Q3 in Fig. 3) in flexible circuit board respectively, be that drive electrode 203 and induction electrode 201 couple together by the drive wire in peripheral flexible circuit board and the line of induction respectively, and be connected with external driver device with the line of induction via drive wire, the induction electrode 201 of C part is separately positioned on different layers with the wiring of drive electrode 203.
Please also refer to Fig. 3 with as shown in Figure 4, touch control layer 101 includes a plurality of touch control units, each touch control unit comprises an induction electrode 201 and three drive electrodes 203, in the present embodiment, the wiring route 301 of induction electrode 201 comprises nine laterally 305 and one of wirings and the 305 vertical wirings 307 that intersect vertically of laterally connecting up, the wiring route 303 of each drive electrode 203 comprises three horizontal wirings 309 and vertically connects up 311 with three 309 one of intersecting vertically that laterally connect up, three vertical wirings 311 of three drive electrodes 203 in each touch control unit are along row to extending and being arranged in parallel.And nine of induction electrode 201 are laterally electrically connected between 305 and vertical wirings 307 of wiring, three of each drive electrode 203 are laterally electrically connected between 309 and vertical wirings 311 of wiring.Meanwhile, the horizontal wiring 305 of the induction electrode 201 and horizontal wiring 309 of drive electrode 203 is parallel with gate line 102 and overlap in vertical direction with gate line 102 respectively and keep vertical intervals with gate line 102.The vertical wiring 307 of induction electrode 201 is parallel with data line 104 with the vertical wiring 311 of drive electrode 203 and overlap in vertical direction with data line 104 respectively and keeping a vertical interval with data line 104.
In the present embodiment, the horizontal wiring 305 of induction electrode 201 arranges with horizontal wiring 309 intervals of drive electrode 203, be the laterally wiring 309 that drive electrode 203 is set between every two adjacent horizontal wirings 305 of induction electrode 201, the horizontal wiring 305 of an induction electrode 201 is set between every two adjacent horizontal wirings 309 of drive electrode 203.One end of the horizontal wiring 305 of induction electrode 201 and the vertical wiring of induction electrode 201 307 are electrically connected, and the other end sky of the horizontal wiring 305 of induction electrode 201 connects.The vertical wiring 307 of induction electrode 201 is electrically connected with many horizontal wirings 305 of induction electrode 201.One end of the horizontal wiring 309 of drive electrode 203 and the vertical wiring of drive electrode 203 311 are electrically connected, and other end sky connects.In other embodiments, the position of the wiring route 301 of induction electrode 201 and the wiring route 303 of drive electrode 203 also can exchange, be the wiring route that the wiring route 301 of induction electrode 201 also can be used as drive electrode 203, the wiring route 303 of drive electrode 203 also can be used as the wiring route of induction electrode 201.
From Fig. 3 and Fig. 4, can find out, in the number of touch control unit and each touch control unit, the wiring route of induction electrode 201 and drive electrode 203 is to arrange according to the structure of pixel cell, for example in the present embodiment, the number of the pixel cell of touch-control liquid crystal display panel is 17 х 23, this display panels consists of 17 row, 23 row pixel cells, each touch control unit covers 17 row and 7 row pixel cells wherein, three such touch control units along line direction arranged distribution, form whole touch control layer 101 on touch area.In other embodiments, the number of the pixel cell of touch-control liquid crystal display panel also can be other numerical value, at this, is not particularly limited.
In the present embodiment, in each touch control unit, be provided with an induction electrode 201 and three drive electrodes 203, nine of three drive electrodes 203 laterally wiring 309 with the horizontal wiring 305 of induction electrode 201 along column direction arranged distribution, and every three horizontal wirings 309 are electrically connected to the vertical wiring 311 of a drive electrode 203, that is to say that the present invention has been divided into three parts by the touch area at each touch control unit place on column direction, every part comprises three laterally wirings 305 of the horizontal wiring 309 of three of one of them drive electrode 203 and induction electrode 201, in order to determine a touch point.Be three of drive electrode 203 laterally wiring 309 be used for determining the Y coordinate of this touch point, induction electrode 201 is used for determining the X coordinate of this touch point.Because each touch control unit is less with respect to the width of the touch point of finger formation along the width of line direction in the present invention, the coordinate of the whole touch area at its place on directions X can be thought identical, therefore the X coordinate of three touch points is all identical in single touch control unit, an induction electrode is set; Simultaneously, because each touch control unit along on column direction covering liquid LCD panel wherein 7 row all pixel cells, the length of the touch point forming with respect to finger is larger, therefore the present invention has been divided into three parts each touch control unit on column direction, the corresponding Y coordinate of every part, the corresponding touch point of every part simultaneously, is determined the Y coordinate of this touch point by a drive electrode 203 corresponding with this part.
In other embodiments, each touch control unit can comprise an induction electrode 201 and a plurality of drive electrode 203, be not restricted to three, because on each touch control unit covering liquid LCD panel wherein 7 row all pixel cells, when display panels is more along the number of the pixel cell on column direction, for example be greater than 17, just each touch control unit need to be divided into more parts on column direction, make each part along the length on column direction, be less than the length of touch point, so that determine accurately the Y coordinate of this touch point, at this moment, just more drive electrodes 203 need to be set in each touch control unit, and the wiring route 303 of each drive electrode 203 can comprise many laterally wirings 309, be not restricted to three, the wiring route 301 of induction electrode 201 can comprise many laterally wirings 305 simultaneously, be not restricted to nine, the number of drive electrode 203 in each touch control unit namely, the wiring route of each drive electrode 203 and induction electrode 201 can arrange according to the size of touch-control liquid crystal display panel, at this, be not particularly limited.
Further, the wiring route of induction electrode 201 and drive electrode 203 is to connect up according to the structure of pixel cell, in the present embodiment, because data line 104 is square crossing settings with gate line 102, therefore induction electrode 201 laterally wiring 305 intersects vertically with vertical wiring 307, the horizontal wiring 309 of drive electrode 203 and vertical wiring 311 also intersect vertically, in other embodiments, the wiring route 301 of induction electrode 201 also can be different and different according to the structure of pixel cell with the wiring route 303 of drive electrode 203, at this, also seldom limit.
In addition, in the present embodiment, the width of the wiring route 301 of induction electrode 201 and the wiring route 303 of drive electrode 203 is less than the width of data line 104 and the width of gate line 102, to prevent that the wiring route 301 of induction electrode 201 and the wiring route of drive electrode 203 from causing interference to the signal of transmission on gate line 102 and data line 104.
In addition, in the present embodiment, the wiring route 301 of induction electrode 201 and the wiring route 303 of drive electrode 203 can be formed by metal material.Because the wiring route 301 of induction electrode 201 and the wiring route 303 of drive electrode 203 that adopt metal material to form are light tight, the wiring route of the wiring route of induction electrode 201 301 and drive electrode 203 303 and data line 104 and gate line 102 are overlapped, can improve the transmittance of display panels; Simultaneously, in the present embodiment, on colored filter substrate 14, be formed with black matrix" 141, the wiring route 301 of induction electrode 201 and the wiring route of drive electrode 203 303 keep a vertical interval and overlap in vertical direction with black matrix" 141, be that the wiring route 301 of induction electrode 201 and the wiring route 303 of drive electrode 203 arrange over against black matrix" 141, so can further improve the transmittance of display panels.
Fig. 5 shows the schematic equivalent circuit of touch-control liquid crystal display panel in first embodiment of the invention, and described equivalent circuit diagram comprises mutual capacitance 43, induction electrode resistance 45, the testing circuit 46 between signal source 41, drive electrode resistance 42, drive electrode 203 and induction electrode 201.Wherein, signal source 41 for applying driving signal on drive electrode 203; Testing circuit 46 is for input.When finger touch touch-screen, some electric current flows into finger, be equivalent to the change of the mutual capacitance 43 between drive electrode 203 and induction electrode 201, from testing circuit 46, measure described mutual capacitance 33 and change the weak current variation causing, thereby determine the position of finger touch.
In sum, the touch-control liquid crystal display panel that the present embodiment provides, by touch control layer is arranged on array base palte, and the wiring route of each induction electrode and the wiring route of each drive electrode include horizontal wiring and the vertical wiring that keeps a vertical interval with gate line and data line respectively and overlap, between the horizontal wiring of induction electrode and vertical wiring, be electrically connected, between the horizontal wiring of drive electrode and vertical wiring, be electrically connected.Because the wiring route of induction electrode and drive electrode is all oppositely arranged with gate line and data line, thereby can strengthen back of the body reflection of light, improve brightness, improve the transmittance of display panels.
In addition, the embodiment of the present invention is also by making the wiring route of induction electrode and drive electrode with metal, impedance is less, can effectively eliminate grating effect while making touch-control liquid crystal display panel in prior art and the impact of lozenge, the wiring route that metal is made can be made by the mode of plated film, thereby can reduce plated film thickness, shorten the plated film time and reduce coating cost.
In addition, the embodiment of the present invention is also by arranging different shapes and size by the wiring route of induction electrode and drive electrode according to dot structure, be free to the size of inductance capacitance between the shape of designing wiring circuit and induction electrode and drive electrode, and can reach higher touch-control resolution, wiring route is even simultaneously, so impedance matching is better.
Moreover the embodiment of the present invention also overlaps because of the black matrix" on wiring route and colored filter substrate, can strengthen back of the body reflection of light, improve brightness, improve the transmittance of display panels.
Embodiment bis-:
Fig. 6 shows the wiring route 301 of induction electrode 201 and the perspective view of the wiring route 303 of drive electrode 203 on pixel cell of touch-control liquid crystal display panel in second embodiment of the invention.It is similar that touch-control liquid crystal display panel structure setting shown in Fig. 6 in the second embodiment and touch-control liquid crystal display panel structure in the first embodiment arrange, and just the wiring route 301 of induction electrode 201 is different from the wiring route in Fig. 4 with the wiring route 303 of drive electrode 203.
Specifically please refer to Fig. 6, in Fig. 6, the wiring route 301 of induction electrode 201 and the wiring route 303 of drive electrode 203 are similar to Fig. 4, the wiring route 301 of induction electrode 201 comprises many laterally wiring 305 and the vertical wirings 307 that intersect vertically with horizontal wiring 305, and the wiring route 303 of drive electrode 203 comprises many laterally wiring 309 and many vertical wirings 311 intersecting vertically with horizontal wiring 309.Itself and Fig. 4 difference are, the horizontal wiring 305 of induction electrode 201 arranges at interval between two with the horizontal wiring 309 of drive electrode 203, the horizontal wiring 309 of two drive electrodes 203 is set every the horizontal wiring 305 of two induction electrodes 201, the horizontal wiring 305 of two induction electrodes 201 is set every the horizontal wiring 309 of two drive electrodes 203.Further, between two adjacent horizontal wirings 305 of induction electrode 201, the vertical connecting line 304 distributing along column direction is also set, the vertical connecting line 304 of induction electrode 201 is parallel with data line 104 and keep vertical intervals and overlap with data line 104 in vertical direction with data line 104 respectively, at this, vertical connecting line 304 contacts with two adjacent transverse wirings 305, and the length of vertical connecting line 304 is greater than the spacing of two adjacent transverse wirings 305, but do not contact with the connect up horizontal wiring 309 of drive electrode 203 of 305 both sides of adjacent transverse; Between two adjacent horizontal wirings 309 of drive electrode 203, be also provided with the vertical connecting line 306 distributing along column direction, the vertical connecting line 306 of drive electrode 203 is parallel with data line 104 and keep vertical intervals and overlap with data line 104 in vertical direction with data line 104 respectively, at this, vertical connecting line 306 contacts with two adjacent transverse wirings 309, and the length of vertical connecting line 306 is greater than the spacing of two adjacent transverse wirings 309, but do not contact with the connect up horizontal wiring 305 of induction electrode 203 of 309 both sides of adjacent transverse.Meanwhile, the vertical connecting line 304 of induction electrode 201 and the vertical connecting line 306 of drive electrode 203 do not contact.Like this, in the situation that not affecting transmittance, increased the cross-sectional area of induction electrode 201 and drive electrode 203, thereby increased the coupling capacitance of induction electrode 201 and drive electrode 203 infalls, when finger touch arrives capacitance plate, near the variation of coupling capacitance touch point between two electrodes will be more obvious, thereby improve touch-control degree of accuracy and the sensitivity of touch-control liquid crystal display panel.
In the present embodiment, between two adjacent vertical wirings 311 of drive electrode 203, be also provided with the horizontal connecting line 308 distributing along line direction, laterally connecting line 308 is parallel with gate line 102 and keep in vertical direction a spacing and overlap with gate line 102 in vertical direction with gate line 102 respectively.At this, laterally connecting line 308 contacts with two adjacent vertical wirings 311, and the length of horizontal connecting line 308 is greater than the spacing of two adjacent vertical wirings 311.In other embodiments, also can not comprise horizontal connecting line 308.
The wiring route 301 of the induction electrode 201 of the present embodiment and the wiring route of drive electrode 203 303 arrange to compare in the first embodiment and design more crypto set, on the one hand, can improve touch-control degree of accuracy and the sensitivity of touch-control liquid crystal display panel; On the other hand, compared to the first embodiment, because the induction electrode 201 in the present embodiment not only comprises horizontal wiring 305,309 with drive electrode 203, also be provided with vertical connecting line 304,306, make touch-control liquid crystal display panel viewing area follow Xiang Yulie more even to the wiring distributing, avoided display frame to occur the band phenomenon of only having horizontal wiring not have vertical wiring to cause due to metal line, thereby can improve the display quality of display panels, and impedance matching is better.
It is two kinds of wire structures of Fig. 4 and Fig. 6 that the present invention is not limited to, and in other embodiments, also can laterally more and vertical wiring be set according to the size of touch-control precision, i.e. corresponding more drive electrode and induction electrode.
Embodiment tri-:
Please refer to Fig. 7, Fig. 7 shows the cross-sectional view of touch-control liquid crystal display panel in third embodiment of the invention.Structure shown in Fig. 7 is similar to the touch-control liquid crystal display panel shown in Fig. 1, and its difference is, touch control layer 102 is arranged on array base palte 12 and towards a side of liquid crystal layer 13.In the present embodiment, touch control layer 102 is positioned at array base palte 12 towards a side of liquid crystal layer 13, and be provided with one deck shielding layer 122 between touch control layer 102 and grid line 121, shielding layer 122 is for example made by transparent conductive material, prevents grid line or the 102 touch-control effects of the current affects touch control layer in data on array base palte 12.
It is the touch-control liquid crystal display panel that the present embodiment provides, can also according to actual needs touch control layer be arranged on to the diverse location (as be arranged on array base palte 12 and towards a side of lower polaroid) of available liquid crystal display panel, more flexible in design, only need on original LCD board production technology, slightly adjust and can realize, technological requirement is simple, without additional input, reduced manufacturing cost.
The embodiment of the present invention also provides a kind of touch control type LCD device, and it comprises above-mentioned touch-control liquid crystal display panel.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be not depart from technical solution of the present invention content, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (10)
1. a touch-control liquid crystal display panel, is characterized in that, described touch-control liquid crystal display panel comprises:
Colored filter substrate;
Array base palte;
Many gate lines;
Many data lines, intersect and distribution insulated from each other mutually with described gate line, and wherein two adjacent data lines form a pixel cell with the region that the two adjacent gate lines that intersect surround;
Touch control layer, is positioned on described array base palte;
Wherein, described touch control layer includes a plurality of touch control units, is provided with an induction electrode and at least one drive electrode described in each on touch control unit;
Described induction electrode comprises the vertical wiring that and described data line keep a vertical interval and overlap with described data line in vertical direction, and many and the described gate line horizontal wiring that keeps a vertical interval and overlap with described gate line in vertical direction, described many laterally one end and the described vertical wiring electric connections of wiring, described many other end skies that laterally connect up connect;
Described drive electrode comprises the vertical wiring that and described data line keep a vertical interval and overlap with described data line in vertical direction, and at least one and the horizontal wiring that keeps a vertical interval and overlap with described gate line in vertical direction of described gate line, described many laterally one end and the described vertical wiring electric connections of wiring, described many other end skies that laterally connect up connect.
2. touch-control liquid crystal display panel according to claim 1, it is characterized in that, the horizontal wiring of described induction electrode and the vertical wiring of described induction electrode intersect vertically, and the horizontal wiring of described drive electrode and the vertical wiring of described drive electrode intersect vertically.
3. touch-control liquid crystal display panel according to claim 1, it is characterized in that, at least one laterally wiring of described drive electrode is set between the adjacent transverse wiring of described induction electrode, at least one laterally wiring of described induction electrode is set between the adjacent transverse wiring of described drive electrode.
4. touch-control liquid crystal display panel according to claim 1, it is characterized in that, laterally connecting up every two two that described drive electrode is laterally set between wiring of described induction electrode, two laterally wirings that described induction electrode is set between two horizontal wirings of described drive electrode.
5. touch-control liquid crystal display panel according to claim 4, is characterized in that, between two adjacent transverse wirings of described induction electrode or between two adjacent transverse wirings of described drive electrode, is provided with at least one vertical connecting line.
6. touch-control liquid crystal display panel according to claim 1, is characterized in that, the width of the wiring route of described induction electrode and the wiring route of described drive electrode is less than the width of described data line or the width of described gate line.
7. touch-control liquid crystal display panel according to claim 1, it is characterized in that, described touch-control liquid crystal display panel also comprises the upper polaroid that is arranged at described array base palte top, be arranged at cover plate and the liquid crystal layer between array base palte and colored filter substrate of described upper polaroid top, described gate line and described data line are arranged on described array base palte, on described colored filter substrate, form black matrix", the wiring route of described induction electrode and the wiring route of described drive electrode and described black matrix" keep a vertical interval and overlap in vertical direction.
8. touch-control liquid crystal display panel according to claim 1, is characterized in that, described touch control layer is arranged on described array base palte and towards a side of described liquid crystal layer.
9. touch-control liquid crystal display panel according to claim 1, is characterized in that, described touch control layer is arranged on described array base palte and towards a side of upper polaroid, described upper polaroid is arranged at the outside of described array base palte.
10. a touch control type LCD device, is characterized in that, comprises the touch-control liquid crystal display panel described in any one in claim 1-9.
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