CN102736287B - touch display device - Google Patents

Abstract

The present invention discloses a touch display device, including a backlight device; a first polarizing film disposed on the backlight device; a control element disposed on the first polarizing film; a liquid crystal layer disposed on the control element; a first transparent conductive layer disposed on the liquid crystal layer; a spacer layer disposed on the first transparent conductive layer; a second transparent conductive layer disposed on the spacer layer; and a second polarizing film disposed on the second transparent conductive layer. The present invention integrates a field sequential color (FSC) liquid crystal display device and a touch sensing device, wherein the FSC liquid crystal display device uses sequential colors to make the display colorful, and does not need to use a color filter, so the thickness and weight of the product can be reduced. In addition, the present invention can improve the brightness of the product due to the use of field sequential color technology.

Description

touch display device

technical field

The present invention relates to a liquid crystal display, in particular to a touch display device.

Background technique

Because the touch panel can be applied to portable products and has the advantages of user-friendly operation, it is helpful to be widely used in various electronic products, including personal digital assistants (personal digital assistant, PDA), palm sized PC (palm sized PC) ), mobile phones, handwriting input devices, information appliances (Information appliances), automated teller machines (automated teller machines, ATMs), and store sales teller machines (point of sale, POS), etc. The number of portable communication and consumer electronics products is increasing day by day, and such products will use touch panels as their input devices in large numbers. Therefore, in recent years, many companies have invested in the development of technologies related to touch panels.

1 shows a liquid crystal display with a touch function, which includes a circuit board 102, a backlight device 104, a first polarizing film 106, a first glass 108, a thin film transistor 110, a liquid crystal layer 112, a third A transparent conductive layer 114 , a color filter layer 116 , a second glass 118 , a second transparent conductive layer 120 , an insulating layer 122 , a first transparent conductive layer 124 , a second polarizing film 126 and a cover plate 128 . Although the liquid crystal display of this kind of touch technology can use the sensing device comprising the first transparent conductive layer 124, the insulating layer 122 and the second transparent conductive layer 120 to perform touch control, however, this kind of touch panel is used in portable communication and There is still room for further improvement in thickness and weight in consumer electronics.

Contents of the invention

In order to overcome the defects of the prior art, an embodiment of the present invention discloses a touch display device, including a backlight device; a first polarizing film disposed on the backlight device; a control element disposed on the first polarizing film; A liquid crystal layer, arranged on the control element; a first transparent conductive layer, arranged on the liquid crystal layer; a spacer layer, arranged on the first transparent conductive layer; a second transparent conductive layer, arranged on the spacer layer; and A second polarizing film is arranged on the second transparent conductive layer.

Another embodiment of the present invention discloses a touch display device, including a backlight device; a first polarizing film disposed on the backlight device; a control element disposed on the first polarizing film; a liquid crystal layer disposed on the control On the element; a spacer layer is arranged above the liquid crystal layer; a first transparent conductive layer and an insulating layer are arranged on the spacer layer, wherein the insulating layer includes a strip structure extending along a first direction, and the first transparent conductive layer includes A strip-shaped electrode extending along a second direction; a connection layer, arranged on the insulating layer, connecting the strip-shaped electrodes on both sides of the insulating layer; a second transparent conductive layer, arranged between the spacer layer and the liquid crystal layer; and a The second polarizing film is arranged on the first transparent conductive layer.

The liquid crystal display with a touch device of the present invention has the following advantages: 1. The present invention integrates a field sequential color (FSC) liquid crystal display device and a touch sensing device, wherein the FSC liquid crystal display device uses sequential color Colorize the display without using color filters, so the thickness and weight of the product can be reduced. 2. The invention can improve the brightness of the product due to the use of the technology of area sequence color.

In order to make the features of the present invention more comprehensible, the following specific embodiments are described in detail in conjunction with the accompanying drawings.

Description of drawings

FIG. 1 shows a liquid crystal display with touch function.

FIG. 2 shows a schematic diagram of a field sequential color (FSC) liquid crystal display device according to an embodiment of the present invention.

FIG. 3 shows the configuration of a backlight device and a thin film transistor array according to an embodiment of the present invention.

FIG. 4 shows a cross-sectional view of a liquid crystal display with a touch device according to a first embodiment of the present invention.

FIG. 5 shows a cross-sectional view of a liquid crystal display with a touch device according to a second embodiment of the present invention.

FIG. 6 shows a cross-sectional view of a liquid crystal display with a touch device according to a third embodiment of the present invention.

FIG. 7 shows a cross-sectional view of a liquid crystal display with a touch device according to a fourth embodiment of the present invention.

FIG. 8 shows a cross-sectional view of a liquid crystal display with a touch device according to a fifth embodiment of the present invention.

FIG. 9 shows a cross-sectional view of a liquid crystal display with a touch device according to a sixth embodiment of the present invention.

FIG. 10 shows a cross-sectional view of a liquid crystal display with a touch device according to a seventh embodiment of the present invention.

FIG. 11 shows a cross-sectional view of a liquid crystal display with a touch device according to an eighth embodiment of the present invention.

[Description of main reference signs]

102～circuit board; 104～backlight device;

106～the first polarizing film; 108～the first glass;

110～thin film transistor; 112～liquid crystal layer;

114～the third transparent conductive layer; 116～color filter layer;

118～the second glass; 120～the second transparent conductive layer;

122～insulating layer; 124～the first transparent conductive layer;

126～second polarizing film; 128～cover plate;

202～liquid crystal display; 204～source driver integrated circuit;

206～gate drive integrated circuit;

208～timing controller; 210～memory;

212～red light-emitting diodes; 214～green light-emitting diodes;

216～blue light-emitting diodes; 302～red light-emitting diodes;

304～green light-emitting diode; 306～blue light-emitting diode;

308～light guide plate; 402～backlight device;

404～first polarizing film; 406～control element;

408～liquid crystal layer; 410～the first transparent conductive layer;

412～spacer layer; 414～second transparent conductive layer;

416～second polarizing film; 502～backlight device;

504～first polarizing film; 506～control element;

508～liquid crystal layer; 510～the first transparent conductive layer;

512～spacer layer; 514～second transparent conductive layer;

516～ink layer; 518～optical glue;

520～second polarizing film; 602～backlight device;

604～first polarizing film; 606～control element;

608～liquid crystal layer; 610～the first transparent conductive layer;

612～spacer layer; 614～second transparent conductive layer;

616～second polarizing film; 618～optical glue;

620～ink layer; 622～covering layer;

702～backlight device; 704～first polarizing film;

706～control element; 708～liquid crystal layer;

710～second transparent conductive layer; 711～spacer layer;

712～the first transparent conductive layer; 714～the insulating layer;

716～connection layer; 718～second polarizing film;

802～backlight device; 804～first polarizing film;

806～control element; 808～liquid crystal layer;

810～first transparent conductive layer; 812～spacer layer;

814～second transparent conductive layer; 816～optical glue;

818～ink layer; 820～second polarizing film;

822～metal wire layer; 902～backlight device;

904～first polarizing film; 906～control element;

908～liquid crystal layer; 910～metal wire layer;

912～the first transparent conductive layer; 914～the spacer layer;

916～second transparent conductive layer; 918～optical glue;

920～ink layer; 1002～backlight device;

1004～first polarizing film; 1006～control element;

1008～liquid crystal layer; 1010～the first transparent conductive layer;

1012～spacer layer; 1014～second transparent conductive layer;

1016～the third transparent conductive layer; 1018～insulating layer;

1020～second polarizing film; 1102～backlight device;

1104～first polarizing film; 1106～control element;

1108～liquid crystal layer; 1110～third transparent conductive layer;

1112～insulation layer; 1114～the first transparent conductive layer;

1116～second transparent conductive layer; 1118～spacer layer;

1120～metal wire layer; 1122～second polarizing film;

1124～optical glue; 1126～ink layer;

1128 ~ cover layer.

Detailed ways

Implementations of the disclosed embodiments are discussed in detail below. It will be appreciated, however, that the embodiments provide many applicable inventive concepts, which can be implemented in wider variation. The specific embodiments discussed are merely intended to disclose specific ways of using the embodiments, and are not intended to limit the scope of the disclosure.

The present invention integrates a field sequential color (FSC) liquid crystal display device and a touch sensing device, wherein the FSC liquid crystal display device makes the display colorful through sequential colors without using color filters, so it can achieve The purpose of product thinning and light weight, in addition, the present invention can improve product brightness due to the use of area sequence color technology.

FIG. 2 shows a schematic diagram of a field sequential color (FSC) liquid crystal display device according to an embodiment of the present invention. Please refer to FIG. A thin-film transistor (not shown) for driving liquid crystal at the intersection of the gate line and the data line; a source driver integrated circuit (IC) 204, used to generate a driving signal for driving the data line of the liquid crystal display panel; a gate driver Integrated circuit (IC) 206, is used for generating the driving signal of the gate line of driving liquid crystal display panel; And a timing controller 208, is used for generating the driving signal of driving gate driving integrated circuit (IC), and produces for driving Load signal and data signal of source driver integrated circuit (IC). A memory 210 for storing and reading signal data. In addition, the above-mentioned FSC type device also includes an array of red light emitting diodes (LED for short) 212, green light emitting diodes 214 and blue light emitting diodes 216 as a backlight device. The configuration of the backlight device and the thin film transistor array of the embodiment of the present invention will be described in more detail below with reference to FIG. 3 . Referring to Fig. 3, the FSC type backlight device of the present embodiment includes an array of red light-emitting diodes 302, green light-emitting diodes 304, and blue light-emitting diodes 306 and a light guide plate 308. In order to display area sequential colors, one color sub-pixel corresponds to A thin film transistor-controlled unit 310 in a thin film transistor (thin film transistor, TFT for short) array. The backlight device of the following embodiments of the present invention can use this backlight device.

The liquid crystal display with a touch device according to the first embodiment of the present invention will be described below with reference to FIG. 4 . In this embodiment, a double side ITO (DITO for short) touch device is integrated with an FSC liquid crystal display. Referring to FIG. 4 , a backlight device 402 is provided. The backlight device 402 may be the backlight device shown in FIG. 3 including an LED array. A first polarizing film 404 is disposed on the backlight device 402 . A control element 406 is disposed on the first polarizing film 404 . In one embodiment of the invention, the control element 406 is a thin film transistor (TFT). A liquid crystal layer 408 is disposed on the control element 406 . In an embodiment of the present invention, in order to make the liquid crystal layer 408 have sufficient response speed to meet the requirements of the FSC liquid crystal display, the liquid crystal layer 408 is preferably optically compensated bend (OCB) liquid crystal. A first transparent conductive layer 410 is disposed on the liquid crystal layer 408 . In an embodiment of the present invention, the first transparent conductive layer 410 includes strip-shaped electrodes extending along a direction (for example, the x direction), and the first transparent conductive layer 410 is, for example, indium tin oxide (ITO) or indium zinc oxide ( IZO). A second transparent conductive layer 414 is disposed above the first transparent conductive layer 410 , and a spacer layer 412 is interposed between the first transparent conductive layer 410 . The second transparent conductive layer 414 includes strip-shaped electrodes extending along one direction (for example, the y direction). The second transparent conductive layer 414 is, for example, indium tin oxide (ITO) or indium zinc oxide (IZO), and the spacer layer 412 is, for example, glass. composition. A second polarizing film 416 is disposed on the second transparent conductive layer 414 . In this embodiment, the first transparent conductive layer 410 , the spacer layer 412 and the second transparent conductive layer 414 are used as a touch sensor, so that the liquid crystal display of this embodiment can perform touch operation. It is worth noting that in this embodiment, the FSC liquid crystal display and the touch device share a transparent conductive layer (ie, the first transparent conductive layer 410 ) to achieve the purpose of saving manufacturing process and cost.

A liquid crystal display with a touch device according to a second embodiment of the present invention will be described below with reference to FIG. 5 . In this embodiment, a double side transparent conductive film (double side ITO, referred to as DITO) touch device is integrated with an FSC liquid crystal display, which is different from the first embodiment of the liquid crystal display in that the second transparent conductive layer and the second polarizing film An ink layer and optical glue are added between them. Referring to FIG. 5 , a backlight device 502 is provided. The backlight device 502 may be the backlight device shown in FIG. 3 including an LED array. A first polarizing film 504 is disposed on the backlight device 502 . A control element 506 is disposed on the first polarizing film 504. In an embodiment of the present invention, the control element 506 is a thin film transistor (TFT). A liquid crystal layer 508 is disposed on the control element 506. In one embodiment of the present invention, in order to make the liquid crystal layer 508 have sufficient response speed and meet the requirements of the FSC liquid crystal display, the liquid crystal layer 508 is made of optically compensated bend (OCB) liquid crystal. good. A first transparent conductive layer 510 is disposed on the liquid crystal layer 508 . In an embodiment of the present invention, the first transparent conductive layer 510 includes strip electrodes extending along a direction (for example, the x direction), and the first transparent conductive layer 510 is, for example, indium tin oxide (ITO) or indium zinc oxide ( IZO). In one embodiment of the present invention, a black matrix is disposed between the first transparent conductive layer 510 and the liquid crystal layer 508 to clarify the pixel definition. A second transparent conductive layer 514 is disposed above the first transparent conductive layer 510 , and a spacer layer 512 is interposed between the first transparent conductive layer 510 . The second transparent conductive layer 514 includes strip-shaped electrodes extending along one direction (for example, the y direction). The second transparent conductive layer 514 is, for example, indium tin oxide (ITO) or indium zinc oxide (IZO), and the spacer layer 512 is, for example, glass. composition. A second polarizing film 520 is disposed on the second transparent conductive layer 514 . In this embodiment, the first transparent conductive layer 510 , the spacer layer 512 and the second transparent conductive layer 514 are used as a touch sensor, so that the liquid crystal display of this embodiment can perform touch operation. The ink layer 516 and an optical adhesive 518 are disposed between the second transparent conductive layer 514 and the second polarizing film 520 , wherein the ink layer 516 is used to shield peripheral circuits of the non-display area.

A liquid crystal display with a touch device according to a third embodiment of the present invention will be described below with reference to FIG. 6 . In this embodiment, a double-layer transparent conductive film (DITO) touch device is integrated with an FSC liquid crystal display, which differs from the liquid crystal display in the first embodiment in that a cover is added on the second polarizing film. Referring to FIG. 6 , a backlight device 602 is provided. The backlight device 602 may be the backlight device shown in FIG. 3 including an LED array. A first polarizing film 604 is disposed on the backlight device 602 . A control element 606 is disposed on the first polarizing film 604. In an embodiment of the present invention, the control element 606 is a thin film transistor (TFT). A liquid crystal layer 608 is arranged on the control element 606. In one embodiment of the present invention, in order to make the liquid crystal layer 608 have sufficient response speed and meet the requirements of the FSC liquid crystal display, the liquid crystal layer 608 is made of optically compensated bend (OCB) liquid crystal. good. A first transparent conductive layer 610 is disposed on the liquid crystal layer 608 . In an embodiment of the present invention, the first transparent conductive layer 610 includes strip electrodes extending along a direction (for example, the x direction), and the first transparent conductive layer 610 is, for example, indium tin oxide (ITO) or indium zinc oxide ( IZO). A second transparent conductive layer 614 is disposed above the first transparent conductive layer 610 , and a spacer layer 612 is interposed between the first transparent conductive layer 610 . The second transparent conductive layer 614 includes strip-shaped electrodes extending along one direction (for example, the y direction). The second transparent conductive layer 614 is, for example, indium tin oxide (ITO) or indium zinc oxide (IZO), and the spacer layer 612 is, for example, glass. composition. A second polarizing film 616 is disposed on the second transparent conductive layer 614 . In this embodiment, the first transparent conductive layer 610 , the spacer layer 612 and the second transparent conductive layer 614 are used as a touch sensor, so that the liquid crystal display of this embodiment can perform touch operation. A cover layer 622 is disposed above the second polarizing film 616 , wherein the cover layer 622 may be glass, polymethylmethacrylate (PMMA for short) or a transparent film. An ink layer 620 and an optical adhesive 618 are disposed between the cover layer 622 and the second polarizing film 616 , wherein the ink layer 620 is used to shield peripheral circuits of the non-display area.

A liquid crystal display with a touch device according to a fourth embodiment of the present invention will be described below with reference to FIG. 7 . The difference from the first embodiment of the liquid crystal display is that this embodiment integrates a single side ITO (SITO) touch device with the FSC liquid crystal display. Referring to FIG. 7 , a backlight device 702 is provided. The backlight device 702 may be the backlight device shown in FIG. 3 including an LED array. A first polarizing film 704 is disposed on the backlight device 702 . A control element 706 is disposed on the first polarizing film 704. In an embodiment of the present invention, the control element 706 is a thin film transistor (TFT). A liquid crystal layer 708 is arranged on the control element 706. In one embodiment of the present invention, in order to make the liquid crystal layer 708 have sufficient response speed and meet the requirements of the FSC liquid crystal display, the liquid crystal layer 708 is made of optically compensated bend (OCB) liquid crystal. good. A second transparent conductive layer 710 is disposed on the liquid crystal layer 708 , and the second transparent conductive layer 710 is, for example, indium tin oxide (ITO) or indium zinc oxide (IZO). A spacer layer 711 is disposed on the second transparent conductive layer 710, and the spacer layer 711 is made of glass, for example. A first transparent conductive layer 712 and an insulating layer 714 are disposed on the spacer layer 711 . The insulating layer 714 includes a strip structure extending along a direction (eg, the y direction), and the first transparent conductive layer 712 includes strip electrodes extending along a direction (eg, the x direction). That is, the extending directions of the first transparent conductive layer 712 and the insulating layer 714 are perpendicular to each other. The first transparent conductive layer 712 is, for example, indium tin oxide (ITO) or indium zinc oxide (IZO), and the insulating layer 714 is, for example, composed of polymer materials such as epoxy resin (Epoxy) or acrylic resin. A connecting layer 716 is disposed on the insulating layer 714 to connect the first transparent conductive layer 712 on both sides of the insulating layer 714. The connecting layer 716 is made of metal with high conductivity, such as a three-layer stacked material of molybdenum, aluminum and molybdenum. A second polarizing film 718 is disposed on the second transparent conductive layer 710 . In this embodiment, the first transparent conductive layer 712 , the insulating layer 714 and the connection layer 716 are used as a touch sensor, so that the liquid crystal display of this embodiment can perform touch operation.

A liquid crystal display with a touch device according to a fifth embodiment of the present invention will be described below with reference to FIG. 8 . In this embodiment, a double-layer transparent conductive film (DITO) touch device is integrated with an FSC liquid crystal display, which is different from the liquid crystal display in the second embodiment in that a metal wire is added between the second transparent conductive layer and the ink layer ( metal trace) layer. Referring to FIG. 8 , a backlight device 802 is provided. The backlight device 802 may be the backlight device 802 shown in FIG. 3 including an LED array. A first polarizing film 804 is disposed on the backlight device 802 . A control element 806 is disposed on the first polarizing film 804. In an embodiment of the present invention, the control element 806 is a thin film transistor (TFT). A liquid crystal layer 808 is arranged on the control element 806. In one embodiment of the present invention, in order to make the liquid crystal layer 808 have sufficient response speed and meet the requirements of the FSC liquid crystal display, the liquid crystal layer 808 is made of optically compensated bend (OCB) liquid crystal. good. A first transparent conductive layer 810 is disposed on the liquid crystal layer 808 . In an embodiment of the present invention, the first transparent conductive layer 810 includes strip electrodes extending along a direction (for example, the x direction), and the first transparent conductive layer 810 is, for example, indium tin oxide (ITO) or indium zinc oxide ( IZO). A second transparent conductive layer 814 is disposed above the first transparent conductive layer 810 , and a spacer layer 812 is interposed between the first transparent conductive layer 810 . The second transparent conductive layer 814 includes strip-shaped electrodes extending along one direction (for example, the y direction). The second transparent conductive layer 814 is, for example, indium tin oxide (ITO) or indium zinc oxide (IZO), and the spacer layer 812 is, for example, glass. composition. A second polarizing film 820 is disposed on the second transparent conductive layer 814 . In this embodiment, the first transparent conductive layer 810 , the spacer layer 812 and the second transparent conductive layer 814 are used as a touch sensor, so that the liquid crystal display of this embodiment can perform touch operation. An ink layer 818 and an optical adhesive 816 are disposed between the second polarizing film 820 and the second transparent conductive layer 814, wherein the ink layer 818 is used to shield peripheral circuits of the non-display area. A metal trace layer 822 is disposed between the second transparent conductive layer 814 and the ink layer 818. Due to the high resistance of the transparent conductive material (that is, indium tin oxide ITO or indium zinc oxide IZO), the metal trace layer 822 can provide non-visual area range connection IC driver. In another embodiment of the present invention, a first metal trace layer can be added between the second transparent conductive layer and the ink layer, and a second metal trace layer can be added between the second transparent conductive layer and the ink layer. wire layer.

A liquid crystal display with a touch device according to a sixth embodiment of the present invention will be described below with reference to FIG. 9 . In this embodiment, a double-layer transparent conductive film (DITO) touch device is integrated with an FSC liquid crystal display. The difference from the fifth embodiment of the liquid crystal display is that the metal wire layer in this embodiment is arranged under the first transparent conductive layer, so as to The benefit signal is turned on. Referring to FIG. 9 , a backlight device 902 is provided. The backlight device 902 may be the backlight device shown in FIG. 3 including an LED array. A first polarizing film 904 is disposed on the backlight device 902 . A control element 906 is disposed on the first polarizing film 904. In an embodiment of the present invention, the control element 906 is a thin film transistor (TFT). A liquid crystal layer 908 is arranged on the control element 906. In one embodiment of the present invention, in order to make the liquid crystal layer 908 have sufficient response speed and meet the requirements of the FSC liquid crystal display, the liquid crystal layer 908 is made of optically compensated bend (OCB) liquid crystal. good. A first transparent conductive layer 912 is disposed on the liquid crystal layer 908 . In an embodiment of the present invention, the first transparent conductive layer 912 includes strip electrodes extending along one direction (for example, the x direction), and the first transparent conductive layer 912 is, for example, indium tin oxide (ITO) or indium zinc oxide ( IZO). A second transparent conductive layer 916 is disposed above the first transparent conductive layer 912 , and a spacer layer 914 is interposed between the first transparent conductive layer 912 . The second transparent conductive layer 916 includes strip electrodes extending along one direction (for example, the y direction). The second transparent conductive layer 916 is, for example, indium tin oxide (ITO) or indium zinc oxide (IZO), and the spacer layer 914 is, for example, glass. composition. A second polarizing film 922 is disposed on the second transparent conductive layer 916 . In this embodiment, the first transparent conductive layer 912 , the spacer layer 914 and the second transparent conductive layer 916 are used as a touch sensor, so that the liquid crystal display of this embodiment can perform touch operation. An ink layer 920 and an optical adhesive 918 are disposed between the second polarizing film 922 and the second transparent conductive layer 916 , wherein the ink layer 920 is used to shield peripheral circuits of the non-display area. A metal trace layer 910 is disposed under the first transparent conductive layer 912 . Likewise, due to the high resistance of the transparent conductive material (ie, ITO or IZO), the metal wire layer 910 can provide a non-visible area to connect the IC driver.

A liquid crystal display with a touch device according to a seventh embodiment of the present invention will be described below with reference to FIG. 10 . This embodiment integrates a double-layer transparent conductive film (DITO) touch device with an FSC liquid crystal display. The difference from the first embodiment of the liquid crystal display is that an insulating layer is added under the second transparent conductive layer in this embodiment. and a transparent conductive layer. Referring to FIG. 10 , a backlight device 1002 is provided. The backlight device 1002 may be the backlight device shown in FIG. 3 including an LED array. A first polarizing film 1004 is disposed on the backlight device 1002 . A control element 1006 is disposed on the first polarizing film 1004. In an embodiment of the present invention, the control element 1006 is a thin film transistor (TFT). A liquid crystal layer 1008 is disposed on the control element 1006. In an embodiment of the present invention, in order to make the liquid crystal layer 1008 have sufficient response speed and meet the requirements of the FSC liquid crystal display, the liquid crystal layer 1008 is made of optically compensated bend (OCB) liquid crystal. good. A first transparent conductive layer 1010 is disposed above the liquid crystal layer 1008 . In an embodiment of the present invention, the first transparent conductive layer 1010 includes strip electrodes extending along a direction (for example, the x direction), and the first transparent conductive layer 1010 is, for example, indium tin oxide (ITO) or indium zinc oxide ( IZO). A second transparent conductive layer 1014 is disposed above the first transparent conductive layer 1010, and a spacer layer 1012 is interposed between the first transparent conductive layer 1010. The second transparent conductive layer 1014 includes strips extending along a direction (such as the y direction). The second transparent conductive layer 1014 of the shape electrode is, for example, indium tin oxide (ITO) or indium zinc oxide (IZO), and the spacer layer 1012 is, for example, made of glass. A third transparent conductive layer 1016 and an insulating layer 1018 are disposed between the first transparent conductive layer 1010 and the liquid crystal layer 1008 . A second polarizing film 1020 is disposed on the second transparent conductive layer 1014 . In this embodiment, the first transparent conductive layer 1010 , the spacer layer 1012 and the second transparent conductive layer 1014 are used as a touch sensor, so that the liquid crystal display of this embodiment can perform touch operation. It should be noted that in this embodiment, the FSC liquid crystal display and the touch device use different patterned transparent conductive layers (for example, the FSC liquid crystal display uses the third transparent conductive layer 1016, and the touch device uses the first transparent conductive layer 1010), so as to increase The performance of the overall display device can reduce the signal interference of the thin film transistor terminal.

A liquid crystal display with a touch device according to an eighth embodiment of the present invention will be described below with reference to FIG. 11 . In this embodiment, a double-layer transparent conductive film (DITO) touch device is integrated with an FSC liquid crystal display, and is integrated with the liquid crystal displays of the third, fifth and seventh embodiments to obtain a device with higher reliability. Referring to FIG. 11 , a backlight device 1102 is provided. The backlight device 1102 may be the backlight device shown in FIG. 3 including an LED array. A first polarizing film 1104 is disposed on the backlight device 1102 . A control element 1106 is disposed on the first polarizing film 1104. In an embodiment of the present invention, the control element 1106 is a thin film transistor (TFT). A liquid crystal layer 1108 is arranged on the control element 1106. In one embodiment of the present invention, in order to make the liquid crystal layer 1108 have sufficient response speed and meet the requirements of the FSC liquid crystal display, the liquid crystal layer 1108 is made of optically compensated bend (OCB) liquid crystal. good. A first transparent conductive layer 1114 is disposed above the liquid crystal layer 1108 . In an embodiment of the present invention, the first transparent conductive layer 1114 includes strip electrodes extending along a direction (for example, the x direction), and the first transparent conductive layer 1114 is, for example, indium tin oxide (ITO) or indium zinc oxide ( IZO). A second transparent conductive layer 1116 is disposed above the first transparent conductive layer 1114, and a spacer layer 1118 is interposed between the first transparent conductive layer 1114. The second transparent conductive layer 1116 includes strips extending along a direction (such as the y direction). The second transparent conductive layer 1116 is, for example, indium tin oxide (ITO) or indium zinc oxide (IZO), and the spacer layer 1118 is, for example, made of glass. A third transparent conductive layer 1110 and an insulating layer 1112 are disposed between the first transparent conductive layer 1114 and the liquid crystal layer 1108 . A second polarizing film 1122 is disposed on the second transparent conductive layer 1116 . A metal wire layer 1120 is disposed between the second polarizing film 1122 and the second transparent conductive layer 1116 . A cover layer 1128 is disposed above the second polarizing film 1122 , wherein the cover layer 1128 may be glass, polymethylmethacrylate (PMMA for short) or a transparent film. An ink layer 1126 and an optical glue 1124 are disposed between the cover layer 1128 and the second polarizing film 1122 , wherein the ink layer 1126 is used to shield peripheral circuits of the non-display area.

According to the above-mentioned embodiments, the liquid crystal display with a touch device of the present invention has the following advantages: 1. The present invention integrates a field sequential color (FSC) liquid crystal display device and a touch sensing device, wherein the FSC liquid crystal display The device makes the display colorful through sequential colors, without using color filters, so the thickness and weight of the product can be reduced. 2. The invention can improve the brightness of the product due to the use of the technology of area sequence color.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art may make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, this The scope of protection of the invention should be determined by the scope defined by the appended claims.

Claims (21)

1. a touch control display apparatus, comprising:

One back lighting device;

One first light polarizing film, is arranged on this back lighting device;

One control element, is arranged in this first light polarizing film;

One liquid crystal layer, is arranged on this control element;

One touch-control sensor, comprising:

One first transparency conducting layer, is arranged on this liquid crystal layer, and this first transparency conducting layer and this control element drive this liquid crystal layer jointly;

One wall, is arranged on this first transparency conducting layer;

One second transparency conducting layer, is arranged on this wall;

One second light polarizing film, is arranged on this second transparency conducting layer; And

One black light shield layer, is arranged between this first transparency conducting layer and this liquid crystal layer.

2. touch control display apparatus as claimed in claim 1, also comprises an ink layer and an optical cement, is arranged between this second transparency conducting layer and this second light polarizing film.

3. touch control display apparatus as claimed in claim 1, also comprises a cap rock, is arranged at above this second light polarizing film.

4. touch control display apparatus as claimed in claim 3, also comprises an ink layer and an optical cement, is arranged between this cap rock and this second light polarizing film.

5. touch control display apparatus as claimed in claim 3, wherein this cap rock is glass, polymethylmethacrylate or transparent membrane.

6. touch control display apparatus as claimed in claim 2, also comprises a metal carbonyl conducting layer, is arranged at this ink layer and this second electrically conducting transparent interlayer.

7. touch control display apparatus as claimed in claim 2, also comprises a metal carbonyl conducting layer, is arranged at below this first transparency conducting layer.

8. touch control display apparatus as claimed in claim 2, also comprises one first metal carbonyl conducting layer, is arranged at this ink layer and this second electrically conducting transparent interlayer, and one second metal carbonyl conducting layer, is arranged at below this first transparency conducting layer.

9. touch control display apparatus as claimed in claim 1, also comprises one the 3rd transparency conducting layer, be arranged at below this first transparency conducting layer, and the 3rd transparency conducting layer and this first electrically conducting transparent interlayer arranges an insulation course.

10. touch control display apparatus as claimed in claim 1, also comprises:

One the 3rd transparency conducting layer, is arranged at below this first transparency conducting layer, and the 3rd transparency conducting layer and this first electrically conducting transparent interlayer arrange an insulation course;

One cap rock, is arranged at above this second light polarizing film;

One ink layer and an optical cement, be arranged between this cap rock and this second light polarizing film; And

One metal carbonyl conducting layer, is arranged at this ink layer and this second electrically conducting transparent interlayer.

11. touch control display apparatus as described in claim 1, wherein this control element is thin film transistor (TFT).

12. touch control display apparatus as claimed in claim 1, wherein this back lighting device is the array of light emitting diode.

13. touch control display apparatus as claimed in claim 1, wherein this liquid crystal layer is optical compensation curved liquid crystal.

14. touch control display apparatus as claimed in claim 1, wherein this touch control display apparatus uses regional sequence dye technology to present colorize.

15. touch control display apparatus as claimed in claim 1, wherein this touch control display apparatus does not comprise colored filter.

16. touch control display apparatus as claimed in claim 1, wherein this first transparency conducting layer, this wall and this second transparency conducting layer are used as a sensing apparatus.

17. 1 kinds of touch control display apparatus, comprising:

One back lighting device;

One first light polarizing film, is arranged on this back lighting device;

One control element, is arranged in this first light polarizing film;

One liquid crystal layer, is arranged on this control element;

One wall, is arranged at above this liquid crystal layer;

One first transparency conducting layer and an insulation course are arranged on wall, and wherein this insulation course comprises the list structure extended along a first direction, and this first transparency conducting layer comprises the strip shaped electric poles extended along a second direction;

One articulamentum, is arranged on this insulation course, connects the strip shaped electric poles of these insulation course both sides;

One second transparency conducting layer, is arranged between this wall and this liquid crystal layer; And

One second light polarizing film, is arranged on this first transparency conducting layer.

18. touch control display apparatus as claimed in claim 17, wherein this touch control display apparatus uses regional sequence dye technology to present colorize.

19. touch control display apparatus as claimed in claim 17, wherein this touch control display apparatus does not comprise colored filter.

20. touch control display apparatus as claimed in claim 17, wherein this first transparency conducting layer, this insulation course and this articulamentum are used as a sensing apparatus.

21. touch control display apparatus as claimed in claim 17, wherein this liquid crystal layer is optical compensation curved liquid crystal.