TWI377395B - Liquid crystal display with touch panel - Google Patents

Description

Γ 377395 103: Year. 05 Month 0 gt; Day Amendment § «: Page 6 Description of Invention: [Technical Field of the Invention] [0001] The present invention relates to a liquid crystal display, and more particularly to a touch type liquid crystal display. ....[Prior Art] _ •...- [0002] LCD display because of low power consumption, miniaturization and high quality display

One of the best ways to display. At present, the more commonly used liquid crystal display is a TN (Twisted Nematic) mode liquid crystal display (TN-LCD). For the TN-LCD, when no voltage is applied to the electrode, the liquid crystal display is in the "OFF" state, and the light energy is transmitted through the liquid crystal display; when a certain voltage is applied to the electrode, the liquid crystal display is in the "0N" state. The long axis direction of the liquid crystal molecules is arranged in the direction of the electric field, and the light cannot pass through the liquid crystal display, so that the light is blocked. Optionally applying a voltage across the electrodes can reveal different patterns. [0003] In recent years, with the development of high performance and diversification of various electronic devices such as mobile phones, touch navigation systems, integrated computer displays, and interactive televisions, a translucent touch screen is mounted on the display surface of a liquid crystal display. Electronic devices are gradually increasing. The user of the electronic device visually confirms the display content of the liquid crystal display located on the back of the touch screen through the touch screen, and presses the touch screen to operate by using a finger or a pen. Thereby, various functions of the electronic device using the liquid crystal display can be operated. [0004] The touch screen can be generally divided into four types according to the working principle and the transmission medium, which are resistive, capacitive inductive, infrared, and surface acoustic wave. Among them, the resistive touch screen is widely used because of its high resolution, 0097263, #^^^ A〇101, 3rd page, 31st page, 1013172508-0 1377395 [May of the year of May 07, the replacement of the page degree] is highly sensitive and durable. . [0005] The prior resistive touch screen generally includes an upper substrate 'the lower surface of the upper substrate is formed with an upper transparent conductive layer; the lower substrate is formed with a lower transparent conductive layer on the upper surface; and a plurality of dot spacers (Dot Spacer) is disposed between the upper transparent conductive layer and the lower transparent conductive layer. The upper transparent conductive layer and the lower transparent conductive layer are usually made of an indium tin oxide (IT0) layer (hereinafter referred to as an I TO layer) having a conductive property. When the upper substrate is pressed with a finger or a pen, the upper substrate is twisted such that the upper transparent conductive layer and the lower transparent conductive layer at the pressing portion are in contact with each other. The voltage is sequentially applied to the upper transparent conductive layer and the lower transparent conductive layer through the external electronic circuit, and the touch screen controller measures the voltage change on the first conductive layer and the voltage change on the second conductive layer, respectively, and performs accurate calculation. Convert to contact coordinates. The touch screen controller passes the digitized contact coordinates to the central processor. The central processor issues corresponding commands according to the coordinates of the contacts, initiates various function switching of the electronic device, and controls the display component display c through the display controller. [0006] However, the IT0 layer as a transparent conductive layer is usually ion beam sputtering or sputtering. Process preparation, Kazuhiro Noda et al., in the Literature of Transparent Conductive Films with Inserted Si02 Anchor Layer, and Application to a Resistive Touch Panel (Electronics and Communications in Japan, Part 2, Vol. 84, P39-45 (2001)) A touch screen using an iTO/Si〇2/polyethylene terephthalate layer. The IT0 layer in the preparation process requires a higher vacuum environment and needs to be heated to 200~30 (TC, therefore, making 1013172508-0 09712631 (^ single number A01〇l page 4 / total 31 pages 1137795 101 years. 05 The manufacturing process of the touch screen having the transparent layer as the transparent electrode is higher in cost. In addition, the ΙΤ0 layer in the prior art has disadvantages such as insufficient mechanical properties, difficulty in bending, and uneven distribution of resistance values. Not suitable for flexible touch-type LCD screens. In addition, the transparency of IT0 will gradually decrease in humid air, resulting in the previous resistive touch screen and display device. - »·-»- - In durability, The disadvantages of low sensitivity, linearity and poor accuracy. In addition, the previous resistive touch screen can only achieve single-point input signal. [0007] In view of this, it is necessary to provide a touch-type liquid crystal display, which is a touch-type liquid crystal display. The utility model has the advantages of good durability, high sensitivity, high linearity and high accuracy, and can realize multi-point signal input. [Description] [0008] A touch type liquid crystal display, The method includes an upper substrate, the upper substrate includes a touch screen, a lower substrate disposed opposite the upper substrate, the lower substrate includes a thin film transistor panel, and a liquid crystal layer disposed between the upper substrate and the lower substrate The touch panel includes: a first electrode plate, the first electrode plate includes a first substrate, a plurality of first transparent electrodes, and a plurality of first signal lines, the first substrate has a first surface, and a plurality of The first transparent electrodes are spaced apart from each other in a first direction on the first surface of the first substrate, the plurality of first signal lines are electrically connected to the plurality of first transparent electrodes, respectively; and a second electrode plate, the second electrode plate includes a second substrate, a plurality of second transparent electrodes, and a plurality of second signal lines, the second substrate having a second surface, the plurality of second transparent electrodes being spaced apart from each other in the second direction on the second surface of the second substrate The plurality of second signal lines are respectively electrically connected to the plurality of second transparent electrodes, the second direction is perpendicular to the first direction, and the plurality of first transparent electrodes and the plurality of second transparent electrodes are respectively covered by 09712631 (^^^A〇101 Page 5 of 31 1013172508-0 1377395 The revised replacement page of May 07, 101 includes a carbon nanotube layer comprising a plurality of carbon nanotubes; an insulating layer, An insulating layer is disposed on a periphery of the surface of the second electrode plate, and the first electrode plate is disposed on the insulating layer and spaced apart from the second electrode plate. [0009] Compared with the prior art, the touch liquid crystal display has The following advantages

First, since the touch screen using the carbon nanotube can directly input operation commands and information, it can replace the input device such as a conventional keyboard, mouse or button, thereby simplifying the structure of the electronic device using the touch liquid crystal display. Secondly, the excellent mechanical properties of the carbon nanotubes make the transparent electrode have good toughness and mechanical strength, and are resistant to bending, so that the durability of the touch screen can be correspondingly improved, thereby improving the durability of the touch liquid crystal display. At the same time, in cooperation with the flexible substrate, a flexible touch liquid crystal display can be prepared. Third, since the carbon nanotubes have good transparency under humid conditions, the use of a carbon nanotube layer as a transparent electrode of the touch screen can make the touch screen have better transparency, thereby facilitating the improvement of the touch liquid crystal display. The resolution of the screen. Fourth, since the carbon nanotubes have excellent electrical conductivity, the transparent electrode composed of carbon nanotubes has a uniform resistance distribution. Therefore, by using the above-mentioned carbon nanotube layer as a transparent electrode, the resolution of the touch screen can be improved accordingly. Degree and precision, which in turn improves the resolution and accuracy of the touch screen. [Embodiment] The touch liquid crystal display provided by the present technical solution will be described in detail below with reference to the accompanying drawings. [0011] Please refer to FIG. 1. The embodiment of the present disclosure provides a touch liquid crystal display 300, which includes an upper substrate 100, a lower substrate 200 disposed opposite the upper substrate 100, and a lower substrate 100 and a lower substrate. _2631 of the substrate 200 (Ρ No. 101 0101, page 6 / 31 pages, 1013172508-0 1377395 _ 101, May 〇 </ RTI> </ RTI> The liquid crystal layer 310 between the corrections. [0012] The liquid crystal layer 310 includes a long stick The liquid crystal material of the liquid crystal layer 310 is a liquid crystal material commonly used in the prior art. The thickness of the liquid crystal layer 310 is 1 to 50 micrometers, and in the present embodiment, the thickness of the liquid crystal layer 310 is 5 micrometers [0013] The upper substrate 100 includes a touch screen 1 , a first L-light layer 110 and a first alignment layer 112 from top to bottom. The first polarizing layer 11 is disposed on the lower surface of the touch screen 10 . For controlling the emission of polarized light passing through the liquid crystal layer 31. The first alignment layer 112 is disposed on a lower surface of the first polarizing layer 110. Further, the lower surface of the first alignment layer 112 may include a plurality of parallel a first trench for separating the liquid crystal layer 31 The first alignment layer 112 of the upper substrate 1 is disposed adjacent to the liquid crystal layer 31. [0014] The touch screen 10 is a resistive touch screen of a four-wire, five-wire or eight-wire structure. In this embodiment, The touch screen 10 is a four-wire structure. Referring to FIG. 2 and FIG. 3, the first electrode plate 12, the plurality of transparent dot spacers 16 and the second electrode plate 14 are sequentially arranged from top to bottom. The two electrode plates 14 are disposed opposite to the first electrode plate 12. The plurality of transparent dot spacers 16 are disposed between the first electrode plate 12 and the second electrode plate 14. [〇〇15] The first electrode plate 12 A first substrate 12A, a plurality of first transparent electrodes 122, and a plurality of first signal lines 124. The first substrate 12A has a first surface 128. The plurality of first transparent electrodes 122 are spaced apart along the first direction. The first surface 122' is disposed on the first surface 128' of the first substrate 120 and the plurality of first transparent electrodes 122 are uniformly distributed in parallel with each other. The first direction is the χ coordinate direction. Page 7 of 31 0971263 Η? · Single number: Α0101 1013172508-0 1377395 Modified a replacement page of the plurality of first transparent electrodes 122 on May 07, 101 There is a first end 122a and a second end 122b. The first ends 122a of the plurality of first transparent electrodes 122 are electrically connected to an X coordinate driving power source 180 through a plurality of first signal lines 124. The X coordinate driving The power source 180 is configured to input a driving power to the plurality of first transparent electrodes 122. The second ends 122b of the plurality of first transparent electrodes 22 respectively pass through a '', ». 笾 a plurality of first signal lines 124 Connected to the two sensors 182, the plurality of - ... first signal lines 124 are parallel to each other. The second electrode plate 14 includes a second substrate 14A, a plurality of second transparent electrodes 142, and a plurality of second signal lines 144. The second substrate 140 has a second surface 148. A plurality of second transparent electrode turns 42 are spaced apart from each other in the second direction on the second surface 148 of the second substrate 14A, and are disposed opposite the plurality of first transparent electrodes 122. The plurality of second transparent electrodes 142 are parallel and evenly distributed with each other. The second direction is a γ coordinate direction. The plurality of second transparent electrodes 142 have a first end 142a and a second end 142b. The first ends 142a of the plurality of second transparent electrodes 142 are electrically connected to a gamma coordinate driving power source 184 through a plurality of second signal lines 144, respectively. The gamma coordinate driving power source 184 is for inputting a driving voltage to the plurality of second transparent electrodes 142, and the second end 142b of the plurality of second transparent electrodes 142 is grounded. The plurality of second signal lines 124 are parallel to each other. The film or sheet which is just transparent to the first base 12 〇 and the second base 14 具有 has a certain degree of softness and can be formed of a flexible material such as plastic or resin. The material of the second substrate 140 may be a hard material such as glass, quartz or gold: stone. When the second substrate 140 is mainly used for supporting the field, when the field is used in a flexible touch screen, the material of the second substrate 14〇 can also be a flexible material such as a material or a tree. Specifically, the first substrate and the second 09712631 (^^^^ A0101 page 8 / 31 pages 1013172508-0 Γ 377395 101. 05. 〇 y y y y y y y y y y y y y y y y Polyester materials such as (PC), polymethyl methacrylate (PMMA), polyethylene terephthalate (PET), and polyether oxime (PES), cellulose ester, polyethylene (PVC), A material such as benzocyclobutene (BCB) and an acrylic resin, the first substrate 120 and the second substrate 140 have a thickness of 1 mm to 1 cm. In the embodiment, the materials of the first substrate 120 and the second substrate 140 are used. All of the PETs have a thickness of 2 mm. It is understood that the materials for forming the first substrate 120 and the second substrate 140 are not limited to the materials listed above, as long as the first substrate 120 and the second substrate 140 can be provided. Preferably, the second substrate 140 functions as a support, and the first substrate 120 has a certain flexible material, which is within the scope of the present invention. [0018] The first signal line 124 are spaced apart on both sides of the first surface of the first substrate 120 in the first direction. The second signal lines 144 are spaced apart from each other on both sides of the second surface of the second substrate 140 in the second direction. The first signal line 124 and the second signal line 144 are composed of a conductive material having a small resistance value. The first signal line 124 and the second signal line 144 are indium tin oxide (ITO) lines, antimony tin oxide (ΑΤΟ) lines, conductive polymer lines, etc. The first signal line 124 and the second signal The line 144 can also be formed by a thin opaque wire having a diameter of less than 100 micrometers, so that the light transmittance of the touch screen and the display effect of the display are not significantly affected. Specifically, the first signal line 124 and the second signal line 144 can be A metal film (such as a nickel-gold film) is formed by etching or consisting of a long line of carbon nanotubes. In this embodiment, the first signal line 124 and the second signal line 144 are long carbon nanotubes, and the carbon nanotubes are long. The wire can be formed by treating an inner carbon nanotube film with an organic solvent or twisting along the length of the carbon nanotube. The carbon nanotube length is 09712631 (P峨A〇101 page 9/31 pages 1013172508-0 1377395 May 07 nuclear front line includes multiple nai (four) tubes It is connected end to end and arranged along the axial/longitudinal direction of the long line of the carbon nanotube. With Zhao, the nanometer carbon in the long line of the nanotube is arranged parallel along the axial/longitudinal direction of the long carbon nanotube. Or the carbon nanotubes in the spiral arrangement of the H-tube nibs are tightly bonded by the van der Waals force. The width of the long carbon nanotubes is 〇. 5 nm ~ 1 () 0 μm [0019] [0020] Understand that because the specific surface area (four) of the carbon nanotube itself is large, the long carbon nanotube line itself is relatively pure. Therefore, the long carbon nanotube line as the first signal line 124 and the second signal line 144 can be directly adhered to the surfaces of the substrates 120, 140. The plurality of first transparent electrodes 122 and the plurality of second transparent electrodes 142 each include a carbon nanotube layer. The carbon nanotube layer is in the form of a strip, a wire or the like. In the embodiment of the technical solution, the carbon nanotube layer is in the form of a strip. The carbon nanotube layer includes a plurality of carbon nanotubes. Further, the carbon nanotube layer may be stacked on a single carbon nanotube film or a plurality of carbon nanotube films, so that the length and thickness of the carbon nanotube layer are not limited as long as they are ideal. Transparency, the carbon nanotube layer of any length and thickness can be made according to actual needs. The carbon nanotube film has a thickness of from 0.5 nm to 100 μm. The carbon nanotube layer has a width of from 20 μm to 250 μm and a thickness of from 0.5 nm to 1 μm. The distance between the transparent electrodes I?, 142 is 20 micrometers to 50 micrometers. In the embodiment of the technical solution, the carbon nanotube layer has a width of 50 μm, a thickness of 50 nm, and a spacing between the transparent electrodes 122 142 of 20 μm. [0021] 09712631 (^^^ The carbon nanotube film in the above carbon nanotube layer is composed of ordered or disordered carbon nanotubes, and the carbon nanotube film has a uniform thickness. Α0101 10 pages / total 31 pages 1013172508-0 1377395 101 years. May 07th, the replacement page

Body, the nanoribule layer comprises a disordered carbon nanotube film or an ordered carbon nanotube film. In the carbon nanotube film of the order, the carbon nanotubes are disordered or isotropically arranged. The disordered array of carbon nanotubes are intertwined, and the isotropically aligned carbon nanotubes are parallel to the surface of the carbon nanotube film. In the ordered carbon nanotube film, the carbon nanotubes are arranged in a preferred orientation in the same direction or in a preferred orientation in different directions. When the carbon nanotube layer comprises a multi-layer ordered carbon nanotube film, the multi-layered carbon nanotube film can be overlapped in any direction, and therefore, in the carbon nanotube layer, the carbon nanotubes are along the same Or preferred orientation in different directions. Preferably, when the carbon nanotube film in the carbon nanotube layer is an ordered carbon nanotube film, the ordered carbon nanotube film is obtained by directly pulling the nano tube obtained from the carbon nanotube array. Carbon tube tensile film structure. Referring to FIG. 5, the carbon nanotube film structure comprises a plurality of carbon nanotubes connected end to end and arranged in a preferred orientation. The plurality of carbon nanotubes are combined by Van der Waals force. On the one hand, the end-to-end carbon nanotubes are connected by van der Waals force; on the other hand, the portions between the preferentially aligned carbon nanotubes are combined by van der Waals force. Therefore,

The carbon nanotube film structure has good self-supporting property and flexibility. When the carbon nanotube layer comprises a plurality of stacked carbon nanotube film structures, the carbon nanotubes in the adjacent two layers of carbon nanotube film form an angle α, and 0° a 90°. [0022] Further, the carbon nanotube layer may include a composite layer composed of the above various carbon nanotube films and a polymer material. The polymer material is uniformly distributed in the gap between the carbon nanotubes in the carbon nanotube film. The polymer material is a transparent polymer material, and the specific material thereof is not limited, and includes polystyrene, polyethylene, polycarbonate, polymethacrylic acid 09712631 (f·^^ A 〇 101 page 11 / 31 pages 1013172508-0 1377395 On May 07, 101, it was replaced by PMMA, Polyacid (PC), PET, PET, BCB, Polycyclic Olefin, etc. In the present embodiment, the carbon nanotube layer of the plurality of first transparent electrodes 122 and the plurality of second transparent electrodes 142 is composed of a layer of carbon nanotubes and a simple structure. The composite layer. Specifically, the carbon nanotubes in the nano carbon tube film structure of the plurality of first transparent electrodes are arranged in the _ direction, and the nano carbon in the carbon nanotube film structure of the transparent electrode 142 The tubes are all arranged in the second direction. The thickness of the carbon nanotube composite layer is 〇5 nm] 〇〇micron 〇 [0024] The carbon nanotubes in the carbon nanotube layer comprise single-walled nanocarbon One or more of a tube, a double-walled carbon nanotube, and a multi-walled carbon tube. The single-walled carbon nanotube has a diameter of 0.5 nm to 50 nm, and double-walled nanocarbon The diameter of the nano-walled carbon nanotubes is from 1 nm to 50 nm, and the diameter of the multi-walled carbon nanotubes is from 15 nm to 5 Å. The thickness of the carbon nanotube layer is 〇·5 nm to 1 μm. [0025] In addition, since the region where the transparent electrodes 122, 124 are provided has a different refractive index and transmittance from the region where the transparent electrode 122' 124 is not provided, in order to minimize the visual difference in the overall light transmittance of the touch panel 10, A filling layer is formed in the gap between the transparent electrodes 122' 124. The material of the filling layer 160 has the same or close refractive index and transmittance as the transparent electrodes 122, 124. [0026] The sensor 182 can It is any sensor in the prior art. In the embodiment of the technical solution, the sensor 182 is configured to detect the driving of the first transparent electrode 122 and the γ coordinate driving power source 184 corresponding to the driving of the X coordinate driving power source 180 when a voltage change occurs. The position coordinates of the two transparent electrodes 142. 1013172508-0 097_(P No. A〇101 page/total 31 page 1373795 101·year.05^ 07曰 Correction replacement page described X-coordinate driving power supply 180 and Y-coordinate driving power supply 184 Can be for the previous... Any driving power source for applying voltage to the first transparent electrode 122 and the second transparent electrode 142. [0027] Further, an insulating layer 18 is disposed on the outer surface of the upper surface of the second electrode plate 14. The first electrode plate 12 is disposed on the insulating layer 18, and the plurality of first transparent electrodes 122 of the first - 1 electrode plate 12 are disposed on the plurality of second transparent electrodes 142 of the second electrode plate 14. The plurality of transparent dot spacers 16 are disposed between the first transparent electrode 122 and the second transparent electrode 142, and the plurality of transparent dot spacers 16 are spaced apart from each other. The distance between the first electrode plate 12 and the second electrode plate 14 is 2 to 10 μm. Both the insulating layer 18 and the transparent dot spacer 16 may be made of an insulating transparent resin or other insulating transparent material. The provision of the insulating layer 18 and the transparent dot spacers 16 allows the first electrode plate 14 to be electrically insulated from the second electrode plate 12. It can be understood that when the touch screen 10 is small in size, the transparent dot spacer 16 is an optional structure, and it is only necessary to ensure that the first electrode plate 14 is electrically insulated from the second electrode plate 12, that is, *5J&quot; 〇• [0028] « A transparent protective film 126 may further be disposed on the surface of the first electrode plate 12 away from the second electrode plate 14. The transparent protective film 126 may be directly bonded to the upper surface of the first substrate 120 by a bonding agent, or may be pressed together with the first electrode plate 12 by a hot pressing method. The transparent protective film 126 may be formed of a surface hardened, smooth scratch-resistant plastic layer or a resin layer which may be formed of a material such as phenylcyclobutene (BCB), polyester or acrylic resin. In the present embodiment, the material for forming the transparent protective film 126 is polyethylene terephthalate (PET) for protecting the first electrode plate 12 for durability. The transparent protective film 126 can be used to provide some additional functions, 09712631 (P No. A 〇 101 page 13 / 31 pages 1013172508-0 1377395 10? - May 07) Press the replacement page to reduce glare or reduce reflection. [0029] The material of the first polarizing layer 110 may be a polarizing material commonly used in the prior art, such as a dichroic organic polymer material, specifically an iodine-based material or a dye material, etc. In addition, the first polarizing layer 110 may also be an ordered carbon nanotube film, wherein the ordered carbon nanotube film is aligned in the same direction. Preferably, the first polarizing layer 110 is a carbon nanotube. 5毫米。 The thickness of the first first polarizing layer 110 is 1 micron ~ 0. 5 mm.

[0030] Since the absorption of electromagnetic waves by the carbon nanotubes is close to an absolute black body, the carbon nanotubes have uniform absorption characteristics for electromagnetic waves of various wavelengths, so the ordered carbon nanotube film in the first polarizing layer 110 is Electromagnetic waves of various wavelengths also have uniform polarization absorption properties. When the light wave is incident, light having a direction parallel to the longitudinal direction of the carbon nanotube bundle is absorbed, and light energy perpendicular to the longitudinal direction of the carbon nanotube bundle is transmitted, so that the transmitted light becomes linearly polarized light. Therefore, the carbon nanotube film can be used as a polarizing effect instead of the polarizing plate of the prior art. In addition, the first polarizing layer 110 includes carbon nanotubes aligned in the same direction, so that the first polarizing layer 110 has good electrical conductivity and can be used as an upper electrode layer in the touch liquid crystal display 300. . Therefore, the first polarizing layer 110 in the touch liquid crystal display 300 of the embodiment of the present invention can simultaneously function as a polarizing and an upper electrode without additionally adding an upper electrode layer, thereby making the touch liquid crystal display 300 thinner. The thickness simplifies the structure and manufacturing cost of the touch-type liquid crystal display 300, improves the utilization of the backlight, and improves the display quality. [0031] The material of the first alignment layer 112 may be polystyrene and its derivatives, polyimine, polyvinyl alcohol, polyester, epoxy resin, polyurethane, polyfluorene _263# single number A〇 101 Page 14 of 31 1013172508-0 1377395 On May 07, 101, Shuttle was replacing the page and so on. The first trench of the first alignment layer 112 may be formed by a prior art film rubbing method, a tilt sputtering SiOx film method, and a micro trench treatment on the film. The first trench may be used to make liquid crystal molecules. Orientation · In this embodiment, the material of the first alignment layer 11 2 is polyimide, and the thickness is 1 to 50 μm. " One · .

Referring to FIG. 4, the lower substrate 200 includes a second alignment layer 212, a thin film transistor panel 220, and a second polarizing layer 210 in order from top to bottom. The second alignment layer 212 is disposed on an upper surface of the thin film transistor panel 220. Further, the upper surface of the second alignment layer 212 may include a plurality of parallel second trenches, the arrangement direction of the first trenches of the first alignment layer 112 and the arrangement of the second trenches of the second alignment layer 212 The direction is vertical. The second polarizing layer 210 is disposed on a lower surface of the thin film transistor panel 220. The second alignment layer 212 of the lower substrate 200 is disposed adjacent to the liquid crystal layer 310. [0033] The material of the second polarizing layer 210 is a polarizing material commonly used in the prior art, such as a dichroic organic polymer material, and specifically may be an iodine-based material or a dye material. The thickness of the second polarizing layer 210 is 1 micrometer to 〇. 5 millimeters. The second polarizing layer 210 functions to polarize light emitted from the light guide plate disposed on the lower surface of the touch liquid crystal display 300 to obtain light polarized in a single direction. The polarization direction of the second polarizing layer 21A is perpendicular to the polarization direction of the first polarizing layer 110. [0034] The second alignment layer 212 is the same material as the first alignment layer 112, and the second trench of the second alignment layer 212 may align the liquid crystal molecules. Since the first trench of the first alignment layer 112 and the second trench of the second alignment layer 212 are arranged perpendicular to each other, the liquid crystal molecules between the first alignment layer 112 and the second alignment layer 21 2 are in two The alignment angle between the alignment layers produces 9 〇09712631 (P number A0101 page 15 / total 31 pages 1013172508-0 1377395 101 May 07 shuttle is replacing page | degree rotation, thus playing the role of optical rotation, will be the second The polarizing layer 210 rotates the polarization direction of the polarized light by 90 degrees. In the embodiment, the material of the second alignment layer 212 is polyimide, and the thickness is 1 to 50 micrometers. The crystal panel 220 further includes a third substrate, a plurality of thin film transistors formed on the upper surface of the third substrate, a plurality of halogen electrodes, and a display driving circuit. The plurality of thin film transistors correspond to the halogen electrodes. Connecting, the plurality of thin film transistors are electrically connected to the display screen driving circuit through the source line and the gate line. Preferably, the plurality of thin film transistors and the plurality of pixel electrodes are arranged in an array on the third substrate Upper surface · φ The thin film transistor panel 2 20 as a driving element of a liquid crystal pixel point in the touch liquid crystal display 300, when a voltage is applied between the pixel electrode and the first polarizer 110 through the display screen driving circuit, the first alignment layer 112 and the first The liquid crystal molecules in the liquid crystal layer 31 0 between the two alignment layers 212 are aligned, so that the light polarized via the second polarizing layer 210 is directly irradiated to the first polarizing layer 110 without being rotated, and the light will not pass through the first. The polarizing layer 110. When no voltage is applied between the halogen electrode and the first polarizing layer 110, the light may be emitted through the first polarizing layer 110 φ after being rotated by the liquid crystal molecules. [0036] Referring to FIG. 6, the touch liquid crystal The display screen 300 further includes a touch screen controller 40, a central processing unit 50, and a display device controller 60. The touch screen controller 40, the central processing unit 50, and the display device controller 60 are interconnected by a circuit. The touch screen controller 40 is electrically connected to the touch screen 10. The display device controller 60 is connected to the display screen driving circuit of the thin film transistor panel 220 of the lower substrate 200. The touch screen 40 is manufactured by a touch object such as a finger 60 touches an icon or menu single production unit 09712631 A〇101 Page number 16 / Total 31 1013172508-0 Γ377395 [0037]

[0038] '101.05.07, the shuttle is replacing the page to locate the selection information input, and the information is passed to the middle processor .., 50. The central processing unit 50 controls the display screen driving circuit of the thin film transistor panel 220 to perform image display through the display controller 60. Referring to FIG. 2, FIG. 3 and FIG. 6, in use, the X-coordinate driving power source 180 and the Y-coordinate driving power source 184 are respectively directed to the plurality of first transparent electrodes, . . . The transparent electrode 142 applies a certain voltage in a time-sharing manner. The user visually confirms the display of the display element provided under the touch panel 10, and presses the first electrode plate 12 of the touch panel 10 by the touch object 60 such as a finger or/and a pen. The first substrate 120 in the first electrode plate 12 is bent such that the first transparent electrode 122 of the pressing portion 70 is in contact with the second transparent electrode 142 to form a conduction. Since the second end 142b of the plurality of second transparent electrodes 142 is grounded, the sensor 182 can detect the driving of the first transparent electrode 122 and the Y coordinate driving power source 184 corresponding to the driving of the X coordinate driving power source 180 when a voltage change occurs. The second transparent electrode 142 transmits the information to the touch screen controller 40, and the touch screen controller 40 determines the X coordinate and the Y coordinate of the contact point through the input information. The touch screen controller 40 communicates the digitized contact coordinates to the central processor 50. The central processor 50 issues corresponding commands in accordance with the coordinates of the contacts, initiates various functional switching of the electronic device, and controls display of the display component 20 by the display controller 60. When multi-point input, the first transparent electrode 122 of the plurality of pressing portions 70 is in contact with the second transparent electrode 142 to form a conduction. Since the X-coordinate driving power source 180 and the Y-coordinate driving power source 184 apply a certain voltage to the plurality of first transparent electrodes 122 and the plurality of second transparent electrodes 142 in a time division manner, the sensors 182 can respectively detect multiple occurrences in sequence. When the voltage changes, the X-coordinate driving power source 180 drives the first transparent electrode 122 and the Y-coordinate driving power supply 184 09712631 (?^_A0101 π page/total 31 page 1013172508-0 1377395 101 May 0&gt; Corresponding to the second transparent electrode 142 driven by the page, and sequentially transmitting the information when the voltage change occurs multiple times to the touch screen controller 40, and the touch screen controller 40 sequentially determines the X coordinate of the plurality of contact points through the input information. Y coordinate. The touch screen controller 40 transmits the plurality of digitized contact coordinates to the central processing unit 50. The central processing unit 50 issues a phase command based on the contact coordinates to initiate various function switching of the electronic device, and The display driving circuit of the thin film transistor panel 220 is controlled by the display controller 60 to perform image display.

[0039] The touch-type liquid crystal display having the carbon nanotube provided by the embodiment of the present invention as the transparent conductive layer and the first polarizing layer has the following advantages: First, since the touch screen using the carbon nanotube can directly input the operation command and The information can replace the input device such as a traditional keyboard, mouse or button, thereby simplifying the structure of the electronic device using the touch liquid crystal display. Secondly, the excellent mechanical properties of the carbon nanotubes make the transparent conductive layer have good toughness and mechanical strength, and are resistant to bending, so that the durability of the touch screen can be correspondingly improved, thereby improving the touch liquid crystal display. Durability, at the same time, with a flexible substrate, a flexible touch LCD screen can be prepared. Third, since the carbon nanotubes have good transparency under humid conditions, the use of a carbon nanotube layer as a transparent conductive layer of the touch screen can make the touch screen have better transparency, thereby facilitating the improvement of the touch liquid crystal. The resolution of the display. Fourth, since the carbon nanotubes have excellent electrical conductivity, the carbon nanotube layer composed of carbon nanotubes has a uniform resistance distribution, and thus, the above-mentioned carbon nanotube layer is used as a transparent conductive layer, which can be correspondingly Improve the resolution and accuracy of the touch screen, thereby improving the resolution and accuracy of the touch screen. Its five 0971263HP number A〇101 page 18/total 31 page 1013172508-0 1377395 101 years. May 07th shuttle for the k page

The first polarizing layer can simultaneously serve the light and the upper electrode, without additionally adding an upper f-pole layer, thereby enabling the touch liquid crystal display to have a thin thickness, simplifying the structure and manufacturing cost of the touch liquid crystal display. Improve the utilization of the backlight and improve the display quality. Sixth, one end of the first transparent electrode of the touch screen is electrically connected to an X coordinate driving power source, and the other end is electrically connected to a sensor. One end of the second transparent electrode is grounded, and the other end is electrically connected to a Y coordinate drive. The power source can detect a plurality of first transparent electrodes corresponding to the driving of the X-coordinate driving power source and the second transparent electrode corresponding to the driving of the Y-coordinate driving power source when the voltage changes, and thereby determine the plurality of touch points. The X coordinate and the Y coordinate, so the touch type liquid crystal display can realize multi-point signal input. [0040] In summary, the present invention has indeed met the requirements of the invention patent, and the patent application is filed according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by those skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

BRIEF DESCRIPTION OF THE DRAWINGS [0041] FIG. 1 is a side view showing the structure of a touch liquid crystal display according to an embodiment of the present technical solution. 2 is a schematic top plan view of a first electrode plate of a touch screen in a touch liquid crystal display according to an embodiment of the present technology. 3 is a schematic top plan view of a second electrode plate of a touch screen in a touch liquid crystal display according to an embodiment of the present technology. [0044] FIG. 4 is a vertical substrate of a touch-type liquid crystal display according to an embodiment of the present invention. The number of the bottom substrate is 9712631 (the number is deleted, the number is deleted, the first page, the first page, the third page, the first, the third, the third, the first, the [0045] FIG. 5 is a scanning electron micrograph of a structure of a carbon nanotube film in a touch liquid crystal display according to an embodiment of the present technology. [0046] FIG. 6 is a touch liquid crystal display according to an embodiment of the present technology. Working principle

·*—··:-:·. U : Picture. _ Λ - [Main component symbol description] . ή·,· _ [0047] Touch screen: 1〇[0048] Upper substrate: 100 [0049] First polarizing layer: 110 [0050] First alignment layer: 112 [0051] First electrode plate: 12 [0052] First substrate: 120 [0053] First transparent electrode: 122 [0054] First end of the first transparent electrode: 122a [0055] Second end of the first transparent electrode: 122b [ 0056] First signal line: 124 [0057] First surface: 128 [0058] Filling layer: 160 [0059] X-coordinate driving power supply: 180 [0060] Sensor: 182 09712631 (^ single number deletion 1 $ 2. Page / Total 31 pages 1013172508-0 Γ377395 101.05月07日正正§«页[0061] First electrode: 124 [0062] Transparent protective film: 126 [0063] Second electrode plate: 14 [0064] Second Substrate: 140 *-· 1··· [0065] Second transparent electrode: 142 [0066] First end of the second transparent electrode: 142a [0067] Second end of the second transparent electrode: 142b

Second signal line: 144 [0069] Second surface: 148 [0070] Y-coordinate driving power supply: 184 [0071] Second electrode: 144 [0072] Dot-shaped spacer: 16 [0073] Insulation: 18

[0074] Lower substrate: 20 0 [0075] Second polarizing layer: 210 [0076] Second alignment layer: 2 1 2 [0077] Thin film transistor panel: 220 [0078] Touch liquid crystal display: 300 [0079] Liquid crystal layer: 310 Intention (P number deletion 1 1013172508-0 page 21 / 31 pages 1373795 101 May 07 correction replacement page [0080] Touch screen controller: 40 [0081] Central processing unit: &amp; 0 [ 0082] Display device controller: 60 [0083] Touch object: 60 [0084] Press: 70

0971263HP# A〇101 Page 22 of 31 1013172508-0

Claims (1)

Γ 377395 VII. Patent application scope: 1. A touch type liquid crystal display, comprising: an upper substrate, the upper substrate comprises a touch screen; a lower substrate, the lower substrate is opposite to the upper substrate, and the lower substrate comprises a thin film transistor a panel; 4 and a liquid crystal Tu" are disposed between the upper and lower substrates; The improvement is that the touch screen comprises: a first electrode plate, the first electrode plate comprises a first substrate, a plurality of first transparent electrodes and a plurality of first signal lines, wherein the first substrate has a surface 'Multiple-transparent electrodes: the first direction is spaced apart on the first surface of the first substrate, the plurality of first signal lines are electrically connected to the plurality of first transparent electrodes respectively; and the second electrode plate '5' The first electrode plate includes a second substrate and a plurality of second transparent electrodes And a plurality of second signal lines, the second substrate has a second surface, and the plurality of second transparent electrodes are spaced apart from each other in the second direction on the second surface of the second substrate, and the plurality of second signal lines are respectively The second transparent electrodes are electrically connected, and the second direction is perpendicular to the first direction. The plurality of first transparent electrodes and the plurality of: transparent electrodes each comprise a carbon nanotube layer, and the carbon nanotube layer comprises a plurality of a silicon nanotube; an insulating layer disposed on a periphery of the surface of the second electrode plate. The first electrode plate is disposed on the insulating layer and spaced apart from the second electrode plate. The touch liquid crystal display of claim 1, wherein the touch screen further comprises a plurality of dot spacers disposed on the first electrode plate and Between the second electrode plates. For example, the touch type liquid crystal display panel described in claim 2, wherein the carbon nanotube layer comprises a carbon nanotube film or a plurality of overlapping 〇97〗 2631 {^单号 A010I 23 pages / a total of 31 pages 1013172508-0 101 years of May 〇 > Japanese shuttle carbon nanotube film. The touch liquid crystal display of claim 3, wherein the carbon nanotube film comprises a disordered carbon nanotube film, and the disordered carbon nanotube film comprises a plurality of carbon nanotubes. Ordered or isotropically arranged. The touch liquid crystal display of claim 4, wherein the carbon nanotubes in the disordered carbon nanotube film are intertwined or parallel to the surface of the carbon nanotube film. The touch liquid crystal display of claim 3, wherein the nano film comprises an ordered carbon nanotube film, and the ordered nano carbon film comprises a plurality of carbon nanotubes Orientation in the same direction or in a preferred orientation in different directions. The touch liquid crystal display of claim 6, wherein the ordered carbon nanotube film comprises a carbon nanotube film structure, and the carbon nanotube film structure further comprises a plurality of The carbon nanotubes are connected end to end and arranged in a preferred orientation in the same direction, and the plurality of carbon nanotubes are combined by Van der Waals force. The touch-type liquid crystal display of claim 7, wherein the carbon nanotube layer comprises at least two layers of carbon nanotube film-bonded read structures, and adjacent two layers of nanocarbon The carbon nanotubes in the tubular structure form an angle α and 0 ° a 90. . The touch liquid crystal display of claim 3, wherein the carbon nanotube film has a thickness of 0.5 nm to 100 μm. 10 The touch-type liquid crystal display according to claim 2, wherein the carbon nanotubes in the carbon nanotube layer of the 〇9712631 production number are single-walled carbon nanotubes and double-walled nanometers. One or more kinds of carbon tubes and multi-walled carbon tubes having a diameter of 0.5 nm to 50 nm, and the diameter of the double-walled carbon nanotubes is 1 () Nai 1 Page 24 of 31 1013172508-0 1377395 π . 12 m ~ 50 nm, the diameter of the multi-walled nano-tube is 15^^^^ If you apply for the _-type liquid screen described in 2 (2) The nano-domain tube layer is a carbon nanotube composite layer comprising at least a carbon nanotube film and a polymer material uniformly distributed on the carbon nanotube film y, as described in the patent application _ 歧 晶 晶 ( 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四Polycyclic hydrocarbons. The touch liquid crystal display of claim 2, wherein the plurality of first transparent electrodes and the plurality of second transparent electrodes are uniformly distributed in respective electrode plates, the first transparent The electrode and the second transparent electrode are strip-shaped having a width of 20 mm to 250 μm and a thickness of 〇5 nm] 〇〇 micrometer, and the spacing between the transparent electrodes is 2 〇 nanometers to 5 〇 micrometers. The touch liquid crystal display of claim 2, wherein the carbon nanotubes in the first transparent electrode are aligned in a first direction, and the carbon nanotubes in the second transparent electrode Oriented in the second direction. The touch liquid crystal display of claim 14, wherein the plurality of first transparent electrodes have a first end and a second end, and the first ends of the plurality of first transparent electrodes Each of the plurality of first transparent electrodes is electrically connected to a sensor through a plurality of first-signal lines, and the plurality of second transparent electrodes are electrically connected to the X-axis driving power source respectively. Having a first end and a second end, the first ends of the plurality of second transparent electrodes are electrically connected to the second end of the plurality of second transparent electrodes by a plurality of second signal lines Ground. 16. The liquid crystal display according to claim 15, wherein the plurality of first signal lines are parallel to each other, and the plurality of 097 is deleted by HP number A_ page 25/31 pages 1013172508-0 171377395 In May 1101, 0&gt; is replaced by y parallel, and the first-signal line and the second signal line are (iv) oxide lines, antimony-oxide lines or nano-carbon tubes long lines. The touch liquid crystal display of claim 1, wherein the upper substrate further comprises: a first polarizing layer disposed on a lower surface of the touch screen; and a first alignment layer disposed on the first polarizing layer The lower surface of the layer is disposed adjacent to the liquid crystal layer. The touch liquid crystal display of claim 17, wherein the first polarizing layer comprises a plurality of carbon nanotubes arranged in a preferred orientation in the same direction. The touch liquid crystal display according to claim 7, wherein the first polarizing layer has a thickness of 1 μm to 55 mm. The touch liquid crystal display panel of claim 1, wherein the thin film transistor panel further comprises: a third substrate; a display driving circuit; and a plurality of thin film transistors disposed on the third substrate The upper surface is connected to the display driving circuit; and a plurality of pixel electrodes are disposed on the upper surface of the third substrate and connected to the plurality of thin film transistors in one-to-one correspondence. The touch liquid crystal display of claim 1, wherein the lower substrate further comprises: a second polarizing layer disposed on a lower surface of the thin film transistor panel; and a second alignment layer, And disposed on the upper surface of the thin film transistor panel, the second alignment layer is disposed adjacent to the liquid crystal layer. 09712631(^单号 A01〇l Page 26 of 31 1013172508-0