US20150316806A1 - Touch screen display device - Google Patents

Touch screen display device Download PDF

Info

Publication number
US20150316806A1
US20150316806A1 US14/790,036 US201514790036A US2015316806A1 US 20150316806 A1 US20150316806 A1 US 20150316806A1 US 201514790036 A US201514790036 A US 201514790036A US 2015316806 A1 US2015316806 A1 US 2015316806A1
Authority
US
United States
Prior art keywords
alignment
display device
screen display
touch screen
disposed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US14/790,036
Inventor
Chih-Kuei CHANG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Innolux Corp
Original Assignee
Innolux Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Innolux Corp filed Critical Innolux Corp
Priority to US14/790,036 priority Critical patent/US20150316806A1/en
Assigned to Innolux Corporation reassignment Innolux Corporation ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHANG, CHIH-KUEI
Publication of US20150316806A1 publication Critical patent/US20150316806A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/13338—Input devices, e.g. touch panels
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/045—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133322—Mechanical guidance or alignment of LCD panel support components
    • G02F2001/133322—
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04101—2.5D-digitiser, i.e. digitiser detecting the X/Y position of the input means, finger or stylus, also when it does not touch, but is proximate to the digitiser's interaction surface and also measures the distance of the input means within a short range in the Z direction, possibly with a separate measurement setup
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate

Definitions

  • This invention relates to a touch screen display device, more particularly to a display device integrated with a touch screen.
  • a touch screen display device is a combination of a touch panel and a display device.
  • FIGS. 1 and 2 show a conventional liquid crystal display device with a capacitive touch screen, in which FIG. 2 is a fragmentary view taken along line II-II in FIG. 1 .
  • the liquid crystal display device includes: a touch panel 11 , a liquid crystal display panel 12 , a flexible circuit board 13 electrically connected to a control circuit (not shown), and a touch screen display region 14 .
  • the touch panel 11 has a transparent substrate 111 , a touch sensor 112 formed on a surface of the transparent substrate 111 , and a protective layer 113 covering the touch sensor 112 .
  • the touch screen display region 14 corresponds in position to the touch sensor 112 .
  • the liquid crystal display panel 12 includes a TFT (thin film transistor) substrate 121 , a color filter substrate 122 , and a liquid crystal layer 123 disposed between the TFT substrate 121 and the color filter substrate 122 .
  • the flexible circuit board 13 is electrically connected to the touch sensor 112 and the control circuit. When the touch screen display region 14 is pressed, the capacitance of the touch sensor 112 will change, thereby generating a touch signal. The touch signal is then transmitted to the control circuit through the flexible circuit board 13 .
  • the touch panel 11 is adhered to a surface of the color filter substrate 122 of the liquid crystal display panel 12 using an adhesive (not shown).
  • an adhesive not shown.
  • FIG. 3 shows a conventional touch panel-integrated liquid crystal display device 2 .
  • the major difference between the conventional touch panel-integrated liquid crystal display device 2 shown in FIG. 3 and the liquid crystal display device 1 of FIG. 1 resides in that, in the touch panel-integrated liquid crystal display device 2 , the transparent substrate 111 used in the liquid crystal display device 1 of FIG. 1 is omitted and the touch sensor 112 is directly formed on the surface of the color filter substrate 122 so that the color filter substrate 122 also serves as the transparent substrate of the touch panel 11 , thereby resulting in a reduction in the thickness and weight of the touch panel-integrated liquid crystal display device 2 .
  • alignment of the flexible circuit board 13 with the touch sensor 112 in the liquid crystal display device of FIG. 1 is conducted using an optical alignment device that is disposed on the transparent substrate 111 so as to align and electrically connect the flexible circuit board 13 and the touch sensor 112 . Since, in the liquid crystal display device of FIG. 1 , the flexible circuit board 13 is connected to the transparent substrate 111 , light generated from the optical alignment device may penetrate through the transparent substrate 111 without being obstructed. However, in the conventional touch panel-integrated liquid crystal display device 2 shown in FIG. 3 , the transparent substrate is dispensed with and the flexible circuit board 13 is directly connected to a periphery of the surface of the color filter substrate 122 .
  • the periphery of the surface of the color filter substrate 122 to which the flexible circuit board 13 is connected is formed with a black matrix 124 that is used to isolate color filters and that is non-transmissible for light, may not be used a conventional optical alignment device to achieve alignment between the flexible circuit board 13 and the touch sensor 112 .
  • the current alignment method is usually conducted to align the flexible circuit board 13 with the touch sensor 112 by virtue of an alignment pattern or through adjusting the position of a light source (illuminating toward front side or rear side of the transparent substrate 111 ). Since the black matrix 124 is non-transmissible for light, the alignment pattern will not be formed at the black matrix. However, the aforesaid alignment method cannot meet the requirement for mass production of the touch panel-integrated liquid crystal display device. Accordingly, how to seek an effective and precise alignment method is the subject of endeavor in the development of a liquid crystal display device integrated with the touch panel.
  • an object of the present invention is to provide a touch panel-integrated liquid crystal display device.
  • Another object of the present invention is to provide a touch screen display device.
  • a touch screen display device includes: a transparent substrate having a first surface and a second surface opposite to said first surface; a touch sensor disposed on said second surface; a plurality of color filters which are disposed on said first surface of said transparent substrate; a black matrix made of a non-transparent material and disposed on said first surface of said transparent substrate, wherein said black matrix has a frame region and said second surface has an area corresponding to said frame region; at least one alignment mark disposed on said area; and at least one flexible circuit board electrically connected to said touch sensor, wherein said flexible circuit board includes a connecting region and at least one alignment pattern formed on said connecting region, and said alignment pattern is corresponding to said alignment mark.
  • a touch screen display device of this invention includes: a transparent substrate having a first surface and a second surface opposite to said first surface; a protective layer disposed on said transparent substrate and adjacent to said second surface; a black matrix made of a non-transparent material and disposed on said first surface of said transparent substrate; a plurality of color filters which are disposed on said first surface of said transparent substrate; a touch sensor disposed on said second surface; and at least one flexible circuit board electrically connected to said touch sensor, wherein said flexible circuit board includes a connecting region, and at least one alignment pattern disposed on said connecting region, wherein said second surface has a first region overlapping with said connecting region, at least one alignment mark is disposed on said first region, and said alignment pattern is corresponding to said alignment mark.
  • FIG. 1 is a top view of a conventional liquid crystal display device with a capacitive touch screen
  • FIG. 2 is a fragmentary view of the conventional liquid crystal display device shown in FIG. 1 ;
  • FIG. 3 is a perspective view of a conventional touch panel-integrated liquid crystal display device
  • FIG. 4 is a perspective view of the preferred embodiment of a touch screen display device according to this invention.
  • FIG. 5 is a fragmentary perspective view of a color filter substrate of the preferred embodiment shown in FIG. 4 ;
  • FIG. 6 is a fragmentary exploded perspective view illustrating relative position between a flexible circuit board and an alignment unit of the preferred embodiment shown in FIG. 4 ;
  • FIG. 7 is a fragmentary schematic view illustrating relative position of the alignment unit and alignment patterns of the flexible circuit board of the preferred embodiment shown in FIG. 4 .
  • the preferred embodiment of a touch screen display device comprises: a liquid crystal display panel 3 , a touch sensor 4 , a flexible circuit board 5 , and a protective layer 6 covering the touch sensor 4 .
  • the liquid crystal display panel 3 has a thin film transistor substrate 31 , a color filter substrate 32 , and liquid crystal molecules 37 disposed between the thin film transistor substrate 31 and the color filter substrate 32 . Because the structure of the liquid crystal display panel 3 of this invention is generally similar to that of a conventional liquid crystal display panel, a detailed description thereof is omitted herein for the sake of brevity.
  • the liquid crystal display panel 3 according to this invention differs from the conventional one in that the color filter substrate 32 of this invention has at least one alignment unit 36 .
  • the detailed structure of the color filter substrate 32 is further described as follows.
  • the color filter substrate 32 includes a transparent substrate 33 , a plurality of color filters 34 , a black matrix 35 , and at least one alignment unit 36 . In this preferred embodiment, only one alignment unit 36 is used for explanation.
  • the transparent substrate 33 is made from a transparent material such as glass or quartz glass, and has a first surface 331 adjacent to the liquid crystal molecules 37 , and a second surface 332 opposite to the first surface 331 .
  • the color filters 34 are composed of RGB three primary color pixels, and are distributed in an array on the first surface 331 .
  • the black matrix 35 is made of a non-transparent material, and has a frame region 351 and a plurality of strip regions 352 .
  • the frame region 351 is formed on the first surface 331 and encircles the color filters 34 .
  • the strip regions 352 are intersected on the first surface 331 to isolate the color filters 34 .
  • the black matrix 35 is composed of a material such as a black photosensitive resin or chromium, and the color filters 34 encircled by the frame region 351 cooperatively define a display region.
  • the materials and manufacturing methods for the color filters 34 and the black matrix 35 are well known to a skilled artisan and thus are not detailed herein for the sake of brevity.
  • the alignment unit 36 has two alignment holes 361 , and two alignment marks 362 formed on the second surface 332 and corresponding in position to the two alignment holes 361 .
  • the two alignment holes 361 are formed in the frame region 351 , and are arranged along a longitudinal direction of the frame region 351 .
  • a pattern for the alignment holes 361 can be simultaneously formed on a pre-prepared photomask for the black matrix 35 through pattern design of the photomask so that the alignment holes 361 and the black matrix 35 can be formed at the same time.
  • the touch sensor 4 is formed on the second surface 332 of the color filter substrate 32 , and can be a resistive or capacitive type. In the preferred embodiment of this invention, the capacitive touch sensor is used for illustration.
  • the touch sensor 4 has a plurality of first electrode circuits 41 that are separately formed on the second surface 332 and that form a horizontal conductive passage in a horizontal direction transverse to the longitudinal direction, a plurality of second electrode circuits 42 that are separately formed on the second surface 332 and that form a vertical conductive passage in the longitudinal direction, a plurality of electrode pads 43 disposed among the adjacent first and second electrode circuits 41 , 42 , and a plurality of conductive wires 44 extending from the first and second electrode circuits 41 and 42 .
  • the flexible circuit board 5 has one side connected to the second surface 332 and electrically connected to the conductive wires 44 of the touch sensor 4 , and the other side electrically connected to a control circuit (not shown).
  • the protective layer 6 is made of an electrical insulating material, and covers and protects the touch sensor 4 .
  • capacitance value of the touch sensor 4 will vary, so as to generate a touch signal that is transmitted to the control circuit through the flexible circuit board 5 .
  • the flexible circuit board 5 has a connecting region 51 connected to the second surface 332 , two alignment patterns 52 formed on the connecting region 51 , and a plurality of conductive wires 53 disposed between the two alignment patterns 52 .
  • Two adjacent ones of the conductive wires 53 are spaced apart from each other by a minimum distance (L).
  • the two alignment patterns 52 are respectively aligned with the two alignment holes 361 of the alignment unit 36 .
  • the conductive wires 53 are electrically connected to the conductive wires 44 .
  • each of the alignment patterns 52 is a square pattern having a predetermined width, and is capable of encircling a respective one of the alignment marks 362 that corresponds in position to a respective one of the alignment patterns 52 .
  • the square patterns 52 are light-transmissible.
  • the alignment holes 361 respectively have a size larger than an area of the alignment patterns 52 of the flexible circuit board 5 .
  • Each of the alignment holes 361 is defined by an edge.
  • the shortest distance (S) between the edge and the respective alignment pattern 52 is not smaller than 30 ⁇ m.
  • each of the two alignment holes 361 has a size sufficient to expose the respective one of the alignment patterns 52 and at least one the conductive wires 53 adjacent to the respective one of the alignment patterns 52 .
  • the shortest distance between the edge of the alignment holes 361 and the exposed conductive wires 53 is larger than or equal to (L/2).
  • the color filter substrate 32 is used as a substrate for the touch sensor 4 , thereby reducing thickness of the touch screen display device.
  • the alignment holes 361 formed in the black matrix 35 electrical connection between the flexible circuit board 5 and the touch sensor 4 can be performed using the optical detection device without modifying a conventional alignment process or device.
  • the design of the alignment unit 36 is more suitable for mass production of a touch panel-integrated liquid crystal display device, i.e., the touch screen display device of this invention.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Nonlinear Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Hardware Design (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

A touch screen display device, includes: a transparent substrate having a first surface and a second surface opposite to said first surface; a touch sensor disposed on said second surface; a plurality of color filters which are disposed on said first surface of said transparent substrate; a black matrix made of a non-transparent material and disposed on said first surface of said transparent substrate, wherein said black matrix has a frame region and said second surface has an area corresponding to said frame region; at least one alignment mark disposed on said area; and at least one flexible circuit board electrically connected to said touch sensor, wherein said flexible circuit board includes a connecting region and at least one alignment pattern formed on said connecting region, and said alignment pattern is corresponding to said alignment mark.

Description

  • This application is a continuation application of U.S. application Ser. No. 13/845,167, filed Mar. 18, 2013, which claims priority of Taiwanese application no. 101115782, filed on May 3, 2012, the subject matter of which is incorporated herein by reference.
    • BACKGROUND
  • 1. Technical Field
  • This invention relates to a touch screen display device, more particularly to a display device integrated with a touch screen.
  • 2. Description of the Related Art
  • A touch screen display device is a combination of a touch panel and a display device.
  • FIGS. 1 and 2 show a conventional liquid crystal display device with a capacitive touch screen, in which FIG. 2 is a fragmentary view taken along line II-II in FIG. 1. The liquid crystal display device includes: a touch panel 11, a liquid crystal display panel 12, a flexible circuit board 13 electrically connected to a control circuit (not shown), and a touch screen display region 14. The touch panel 11 has a transparent substrate 111, a touch sensor 112 formed on a surface of the transparent substrate 111, and a protective layer 113 covering the touch sensor 112. The touch screen display region 14 corresponds in position to the touch sensor 112. The liquid crystal display panel 12 includes a TFT (thin film transistor) substrate 121, a color filter substrate 122, and a liquid crystal layer 123 disposed between the TFT substrate 121 and the color filter substrate 122. The flexible circuit board 13 is electrically connected to the touch sensor 112 and the control circuit. When the touch screen display region 14 is pressed, the capacitance of the touch sensor 112 will change, thereby generating a touch signal. The touch signal is then transmitted to the control circuit through the flexible circuit board 13.
  • In the conventional liquid crystal display device, the touch panel 11 is adhered to a surface of the color filter substrate 122 of the liquid crystal display panel 12 using an adhesive (not shown). However, with miniaturization of 3C products, reducing the thickness and weight of the touch screen display device has become a subject of endeavor in the industry, in which a liquid crystal display device integrated with a touch panel has been the target of development in recent years.
  • FIG. 3 shows a conventional touch panel-integrated liquid crystal display device 2. The major difference between the conventional touch panel-integrated liquid crystal display device 2 shown in FIG. 3 and the liquid crystal display device 1 of FIG. 1 resides in that, in the touch panel-integrated liquid crystal display device 2, the transparent substrate 111 used in the liquid crystal display device 1 of FIG. 1 is omitted and the touch sensor 112 is directly formed on the surface of the color filter substrate 122 so that the color filter substrate 122 also serves as the transparent substrate of the touch panel 11, thereby resulting in a reduction in the thickness and weight of the touch panel-integrated liquid crystal display device 2.
  • However, alignment of the flexible circuit board 13 with the touch sensor 112 in the liquid crystal display device of FIG. 1 is conducted using an optical alignment device that is disposed on the transparent substrate 111 so as to align and electrically connect the flexible circuit board 13 and the touch sensor 112. Since, in the liquid crystal display device of FIG. 1, the flexible circuit board 13 is connected to the transparent substrate 111, light generated from the optical alignment device may penetrate through the transparent substrate 111 without being obstructed. However, in the conventional touch panel-integrated liquid crystal display device 2 shown in FIG. 3, the transparent substrate is dispensed with and the flexible circuit board 13 is directly connected to a periphery of the surface of the color filter substrate 122. Since the periphery of the surface of the color filter substrate 122 to which the flexible circuit board 13 is connected is formed with a black matrix 124 that is used to isolate color filters and that is non-transmissible for light, may not be used a conventional optical alignment device to achieve alignment between the flexible circuit board 13 and the touch sensor 112.
  • The current alignment method is usually conducted to align the flexible circuit board 13 with the touch sensor 112 by virtue of an alignment pattern or through adjusting the position of a light source (illuminating toward front side or rear side of the transparent substrate 111). Since the black matrix 124 is non-transmissible for light, the alignment pattern will not be formed at the black matrix. However, the aforesaid alignment method cannot meet the requirement for mass production of the touch panel-integrated liquid crystal display device. Accordingly, how to seek an effective and precise alignment method is the subject of endeavor in the development of a liquid crystal display device integrated with the touch panel.
    • SUMMARY
  • Therefore, an object of the present invention is to provide a touch panel-integrated liquid crystal display device.
  • Moreover, another object of the present invention is to provide a touch screen display device.
  • Accordingly, a touch screen display device, includes: a transparent substrate having a first surface and a second surface opposite to said first surface; a touch sensor disposed on said second surface; a plurality of color filters which are disposed on said first surface of said transparent substrate; a black matrix made of a non-transparent material and disposed on said first surface of said transparent substrate, wherein said black matrix has a frame region and said second surface has an area corresponding to said frame region; at least one alignment mark disposed on said area; and at least one flexible circuit board electrically connected to said touch sensor, wherein said flexible circuit board includes a connecting region and at least one alignment pattern formed on said connecting region, and said alignment pattern is corresponding to said alignment mark.
  • A touch screen display device of this invention includes: a transparent substrate having a first surface and a second surface opposite to said first surface; a protective layer disposed on said transparent substrate and adjacent to said second surface; a black matrix made of a non-transparent material and disposed on said first surface of said transparent substrate; a plurality of color filters which are disposed on said first surface of said transparent substrate; a touch sensor disposed on said second surface; and at least one flexible circuit board electrically connected to said touch sensor, wherein said flexible circuit board includes a connecting region, and at least one alignment pattern disposed on said connecting region, wherein said second surface has a first region overlapping with said connecting region, at least one alignment mark is disposed on said first region, and said alignment pattern is corresponding to said alignment mark.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • Other features and advantages of the present invention will become apparent in the following detailed description of the preferred embodiment of the invention, with reference to the accompanying drawings, in which:
  • FIG. 1 is a top view of a conventional liquid crystal display device with a capacitive touch screen;
  • FIG. 2 is a fragmentary view of the conventional liquid crystal display device shown in FIG. 1;
  • FIG. 3 is a perspective view of a conventional touch panel-integrated liquid crystal display device;
  • FIG. 4 is a perspective view of the preferred embodiment of a touch screen display device according to this invention;
  • FIG. 5 is a fragmentary perspective view of a color filter substrate of the preferred embodiment shown in FIG. 4;
  • FIG. 6 is a fragmentary exploded perspective view illustrating relative position between a flexible circuit board and an alignment unit of the preferred embodiment shown in FIG. 4; and
  • FIG. 7 is a fragmentary schematic view illustrating relative position of the alignment unit and alignment patterns of the flexible circuit board of the preferred embodiment shown in FIG. 4.
    •
  • In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. It will be apparent, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are schematically shown in order to simplify the drawing.
    • DETAILED DESCRIPTION
  • Referring to FIGS. 4 to 6, the preferred embodiment of a touch screen display device according to this invention comprises: a liquid crystal display panel 3, a touch sensor 4, a flexible circuit board 5, and a protective layer 6 covering the touch sensor 4.
  • The liquid crystal display panel 3 has a thin film transistor substrate 31, a color filter substrate 32, and liquid crystal molecules 37 disposed between the thin film transistor substrate 31 and the color filter substrate 32. Because the structure of the liquid crystal display panel 3 of this invention is generally similar to that of a conventional liquid crystal display panel, a detailed description thereof is omitted herein for the sake of brevity. The liquid crystal display panel 3 according to this invention differs from the conventional one in that the color filter substrate 32 of this invention has at least one alignment unit 36. The detailed structure of the color filter substrate 32 is further described as follows. The color filter substrate 32 includes a transparent substrate 33, a plurality of color filters 34, a black matrix 35, and at least one alignment unit 36. In this preferred embodiment, only one alignment unit 36 is used for explanation.
  • The transparent substrate 33 is made from a transparent material such as glass or quartz glass, and has a first surface 331 adjacent to the liquid crystal molecules 37, and a second surface 332 opposite to the first surface 331.
  • The color filters 34 are composed of RGB three primary color pixels, and are distributed in an array on the first surface 331.
  • The black matrix 35 is made of a non-transparent material, and has a frame region 351 and a plurality of strip regions 352. The frame region 351 is formed on the first surface 331 and encircles the color filters 34. The strip regions 352 are intersected on the first surface 331 to isolate the color filters 34. The black matrix 35 is composed of a material such as a black photosensitive resin or chromium, and the color filters 34 encircled by the frame region 351 cooperatively define a display region. The materials and manufacturing methods for the color filters 34 and the black matrix 35 are well known to a skilled artisan and thus are not detailed herein for the sake of brevity.
  • The alignment unit 36 has two alignment holes 361, and two alignment marks 362 formed on the second surface 332 and corresponding in position to the two alignment holes 361. The two alignment holes 361 are formed in the frame region 351, and are arranged along a longitudinal direction of the frame region 351.
  • It is noted that a pattern for the alignment holes 361 can be simultaneously formed on a pre-prepared photomask for the black matrix 35 through pattern design of the photomask so that the alignment holes 361 and the black matrix 35 can be formed at the same time.
  • The touch sensor 4 is formed on the second surface 332 of the color filter substrate 32, and can be a resistive or capacitive type. In the preferred embodiment of this invention, the capacitive touch sensor is used for illustration.
  • Specifically, the touch sensor 4 has a plurality of first electrode circuits 41 that are separately formed on the second surface 332 and that form a horizontal conductive passage in a horizontal direction transverse to the longitudinal direction, a plurality of second electrode circuits 42 that are separately formed on the second surface 332 and that form a vertical conductive passage in the longitudinal direction, a plurality of electrode pads 43 disposed among the adjacent first and second electrode circuits 41, 42, and a plurality of conductive wires 44 extending from the first and second electrode circuits 41 and 42.
  • The flexible circuit board 5 has one side connected to the second surface 332 and electrically connected to the conductive wires 44 of the touch sensor 4, and the other side electrically connected to a control circuit (not shown).
  • The protective layer 6 is made of an electrical insulating material, and covers and protects the touch sensor 4.
  • When the touch sensor 4 is pressed, capacitance value of the touch sensor 4 will vary, so as to generate a touch signal that is transmitted to the control circuit through the flexible circuit board 5.
  • Referring to FIGS. 6 and 7, specifically, the flexible circuit board 5 has a connecting region 51 connected to the second surface 332, two alignment patterns 52 formed on the connecting region 51, and a plurality of conductive wires 53 disposed between the two alignment patterns 52. Two adjacent ones of the conductive wires 53 are spaced apart from each other by a minimum distance (L). The two alignment patterns 52 are respectively aligned with the two alignment holes 361 of the alignment unit 36. The conductive wires 53 are electrically connected to the conductive wires 44. In the preferred embodiment, each of the alignment patterns 52 is a square pattern having a predetermined width, and is capable of encircling a respective one of the alignment marks 362 that corresponds in position to a respective one of the alignment patterns 52. The square patterns 52 are light-transmissible.
  • To achieve better sensitivity of an optical detection device upon detection, the alignment holes 361 respectively have a size larger than an area of the alignment patterns 52 of the flexible circuit board 5. Each of the alignment holes 361 is defined by an edge. The shortest distance (S) between the edge and the respective alignment pattern 52 is not smaller than 30 μm. Preferably, for a better alignment between the conductive wire 53 of the flexible circuit board 5 and the conductive wires 44, each of the two alignment holes 361 has a size sufficient to expose the respective one of the alignment patterns 52 and at least one the conductive wires 53 adjacent to the respective one of the alignment patterns 52. The shortest distance between the edge of the alignment holes 361 and the exposed conductive wires 53 is larger than or equal to (L/2).
  • In the touch screen display device according to this invention, the color filter substrate 32 is used as a substrate for the touch sensor 4, thereby reducing thickness of the touch screen display device. Moreover, by virtue of the alignment holes 361 formed in the black matrix 35, electrical connection between the flexible circuit board 5 and the touch sensor 4 can be performed using the optical detection device without modifying a conventional alignment process or device. Thus, the design of the alignment unit 36 is more suitable for mass production of a touch panel-integrated liquid crystal display device, i.e., the touch screen display device of this invention.
  • While the present invention has been described in connection with what is considered the most practical and preferred embodiment, it is understood that this invention is not limited to the disclosed embodiments but is intended to cover various arrangements included within the spirit and scope of the broadest interpretations and equivalent arrangements.

Claims (20)

What is claimed is:
1. A touch screen display device, comprising:
a transparent substrate having a first surface and a second surface opposite to said first surface;
a touch sensor disposed on said second surface;
a plurality of color filters which are disposed on said first surface of said transparent substrate;
a black matrix made of a non-transparent material and disposed on said first surface of said transparent substrate, wherein said black matrix has a frame region and said second surface has an area corresponding to said frame region;
at least one alignment mark disposed on said area; and
at least one flexible circuit board electrically connected to said touch sensor, wherein said flexible circuit board includes a connecting region and at least one alignment pattern formed on said connecting region, and said alignment pattern is corresponding to said alignment mark.
2. The touch screen display device as claimed in claim 1, wherein said alignment pattern is partially overlapping with said alignment mark.
3. The touch screen display device as claimed in claim 1, wherein said alignment pattern is aligned with said alignment mark.
4. The touch screen display device as claimed in claim 1, wherein at least one alignment hole penetrates said black matrix to expose said transparent substrate.
5. The touch screen display device as claimed in claim 4, wherein said alignment mark corresponds in position to said alignment hole.
6. The touch screen display device as claimed in claim 4, wherein said alignment hole is larger than said alignment pattern.
7. The touch screen display device as claimed in claim 4, wherein said alignment hole is defined by an edge, and a shortest distance between said edge of said alignment hole and said alignment pattern is not smaller than 30 μm.
8. The touch screen display device as claimed in claim 4, wherein said flexible circuit board further includes a plurality of conductive wires electrically connected to said touch sensor, said alignment hole has a size sufficient to expose said alignment pattern, and at least one of said conductive wires is adjacent to said alignment pattern.
9. The touch screen display device as claimed in claim 1, wherein said alignment pattern encircles said alignment mark.
10. The touch screen display device as claimed in claim 1, wherein said frame region encircles said color filters.
11. A touch screen display device, comprising:
a transparent substrate having a first surface and a second surface opposite to said first surface;
a protective layer disposed on said transparent substrate and adjacent to said second surface;
a black matrix made of a non-transparent material and disposed on said first surface of said transparent substrate;
a plurality of color filters which are disposed on said first surface of said transparent substrate;
a touch sensor disposed on said second surface; and
at least one flexible circuit board electrically connected to said touch sensor, wherein said flexible circuit board includes a connecting region, and at least one alignment pattern disposed on said connecting region, wherein said second surface has a first region overlapping with said connecting region, at least one alignment mark is disposed on said first region, and said alignment pattern is corresponding to said alignment mark.
12. The touch screen display device as claimed in claim 11, wherein said alignment pattern is partially overlapping with said alignment mark.
13. The touch screen display device as claimed in claim 11, wherein said alignment pattern is aligned with said alignment mark.
14. The touch screen display device as claimed in claim 11, wherein at least one alignment hole penetrates said black matrix to expose said transparent substrate.
15. The touch screen display device as claimed in claim 14, wherein said alignment mark corresponds in position to said alignment hole.
16. The touch screen display device as claimed in claim 14, wherein said alignment hole is larger than that of said alignment pattern.
17. The touch screen display device as claimed in claim 14, wherein said alignment hole is defined by an edge, and a shortest distance between said edge of said alignment hole and said alignment pattern is not smaller than 30 μm.
18. The touch screen display device as claimed in claim 14, wherein said flexible circuit board further includes a plurality of conductive wires electrically connected to said touch sensor, and said alignment hole has a size sufficient to expose said alignment pattern.
19. The touch screen display device as claimed in claim 18, wherein at least one of said conductive wires is adjacent to said alignment pattern.
20. The touch screen display device as claimed in claim 11, wherein said touch sensor is one of a capacitive touch sensor and a resistive touch sensor.
US14/790,036 2012-05-03 2015-07-02 Touch screen display device Abandoned US20150316806A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/790,036 US20150316806A1 (en) 2012-05-03 2015-07-02 Touch screen display device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
TW101115782A TWI476459B (en) 2012-05-03 2012-05-03 A color filter substrate, and a touch screen display device
TW101115782 2012-05-03
US13/845,167 US9104061B2 (en) 2012-05-03 2013-03-18 Color filter substrate and touch screen display device
US14/790,036 US20150316806A1 (en) 2012-05-03 2015-07-02 Touch screen display device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US13/845,167 Continuation US9104061B2 (en) 2012-05-03 2013-03-18 Color filter substrate and touch screen display device

Publications (1)

Publication Number Publication Date
US20150316806A1 true US20150316806A1 (en) 2015-11-05

Family

ID=49512270

Family Applications (2)

Application Number Title Priority Date Filing Date
US13/845,167 Active 2033-08-06 US9104061B2 (en) 2012-05-03 2013-03-18 Color filter substrate and touch screen display device
US14/790,036 Abandoned US20150316806A1 (en) 2012-05-03 2015-07-02 Touch screen display device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US13/845,167 Active 2033-08-06 US9104061B2 (en) 2012-05-03 2013-03-18 Color filter substrate and touch screen display device

Country Status (2)

Country Link
US (2) US9104061B2 (en)
TW (1) TWI476459B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170263564A1 (en) * 2016-03-14 2017-09-14 Samsung Display Co., Ltd. Display device having an alignment mark
CN108170324A (en) * 2018-01-03 2018-06-15 京东方科技集团股份有限公司 Touch control component and display device
CN109375805A (en) * 2018-10-22 2019-02-22 业成科技（成都）有限公司 The manufacturing method and display device of display device
WO2019037433A1 (en) * 2017-08-22 2019-02-28 京东方科技集团股份有限公司 Method for preparing touch-control structure, and touch-control structure
US20200110501A1 (en) * 2016-03-22 2020-04-09 Samsung Display Co., Ltd. Display device
US11018202B2 (en) * 2018-09-07 2021-05-25 Samsung Display Co., Ltd. Display device

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103197463B (en) * 2013-03-26 2015-06-17 京东方科技集团股份有限公司 Color film substrate and production method, touch screen and display device thereof
CN103268179B (en) * 2013-05-02 2016-05-25 京东方科技集团股份有限公司 Touch-control electrode and preparation method, capacitive touch device and touch display unit
JP2014222438A (en) * 2013-05-14 2014-11-27 株式会社ジャパンディスプレイ Electronic component and electronic apparatus
CN103995612B (en) 2014-05-07 2016-08-24 合肥鑫晟光电科技有限公司 A kind of touch module, its manufacture method and display device
KR102145553B1 (en) * 2015-01-06 2020-08-18 삼성전자주식회사 Display module and multi-display apparatus having the same
CN104536197A (en) * 2015-01-22 2015-04-22 京东方科技集团股份有限公司 Colored film substrate, array substrate and display device
CN104932765A (en) * 2015-07-03 2015-09-23 合肥鑫晟光电科技有限公司 Capacitive touch screen and preparation method thereof and touch device
CN107463284A (en) * 2016-06-02 2017-12-12 中强光电股份有限公司 Touch control display system and its bearing calibration
CN108962177B (en) * 2018-08-28 2021-07-27 Oppo（重庆）智能科技有限公司 Electronic equipment and driving method of liquid crystal display screen thereof
CN111221429A (en) * 2018-11-26 2020-06-02 南昌欧菲显示科技有限公司 Touch module, touch screen and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5936695A (en) * 1996-03-29 1999-08-10 Kabushiki Kaisha Toshiba Liquid crystal display device and method of fabricating same
US20060279687A1 (en) * 2005-06-02 2006-12-14 Park Kwang S Liquid crystal display device
US20120320290A1 (en) * 2010-02-23 2012-12-20 Sharp Kabushiki Kaisha Display device
US20130093990A1 (en) * 2011-10-12 2013-04-18 Shenzhen China Star Optoelectronics Technology Co., Ltd. Liquid crystal display module and a liquid crystal display panel
US20130162595A1 (en) * 2010-09-01 2013-06-27 Sung Ho Lee Capacitive touch detecting device and method using level shift, and display device using the same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3332822B2 (en) * 1997-09-05 2002-10-07 キヤノン株式会社 Method for manufacturing color filter substrate
KR100603842B1 (en) * 2000-02-18 2006-07-24 엘지.필립스 엘시디 주식회사 Color filter with identification mark
KR101183374B1 (en) * 2005-06-27 2012-09-21 엘지디스플레이 주식회사 Liquid crystal display device and method of lcd thereof
US8552989B2 (en) * 2006-06-09 2013-10-08 Apple Inc. Integrated display and touch screen
TWI356333B (en) * 2008-03-21 2012-01-11 Chimei Innolux Corp Liquid crystal display and remote controlling syst
TWI380089B (en) 2008-12-03 2012-12-21 Au Optronics Corp Method of forming a color filter touch sensing substrate
TWI452386B (en) * 2011-03-18 2014-09-11 Au Optronics Corp Touch display device, touch panel and manufacturing method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5936695A (en) * 1996-03-29 1999-08-10 Kabushiki Kaisha Toshiba Liquid crystal display device and method of fabricating same
US20060279687A1 (en) * 2005-06-02 2006-12-14 Park Kwang S Liquid crystal display device
US20120320290A1 (en) * 2010-02-23 2012-12-20 Sharp Kabushiki Kaisha Display device
US20130162595A1 (en) * 2010-09-01 2013-06-27 Sung Ho Lee Capacitive touch detecting device and method using level shift, and display device using the same
US20130093990A1 (en) * 2011-10-12 2013-04-18 Shenzhen China Star Optoelectronics Technology Co., Ltd. Liquid crystal display module and a liquid crystal display panel

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170263564A1 (en) * 2016-03-14 2017-09-14 Samsung Display Co., Ltd. Display device having an alignment mark
US10224289B2 (en) * 2016-03-14 2019-03-05 Samsung Display Co., Ltd. Display device having an alignment mark
US20200110501A1 (en) * 2016-03-22 2020-04-09 Samsung Display Co., Ltd. Display device
US10969832B2 (en) * 2016-03-22 2021-04-06 Samsung Display Co., Ltd. Display device
WO2019037433A1 (en) * 2017-08-22 2019-02-28 京东方科技集团股份有限公司 Method for preparing touch-control structure, and touch-control structure
CN109426397A (en) * 2017-08-22 2019-03-05 京东方科技集团股份有限公司 The preparation method of touch-control structure, touch-control structure
US11184985B2 (en) 2017-08-22 2021-11-23 Boe Technology Group Co., Ltd. Method of manufacturing touch structure and touch structure
CN108170324A (en) * 2018-01-03 2018-06-15 京东方科技集团股份有限公司 Touch control component and display device
US11018202B2 (en) * 2018-09-07 2021-05-25 Samsung Display Co., Ltd. Display device
CN109375805A (en) * 2018-10-22 2019-02-22 业成科技（成都）有限公司 The manufacturing method and display device of display device

Also Published As

Publication number Publication date
TW201346346A (en) 2013-11-16
TWI476459B (en) 2015-03-11
US9104061B2 (en) 2015-08-11
US20130293790A1 (en) 2013-11-07

Similar Documents

Publication Publication Date Title
US9104061B2 (en) Color filter substrate and touch screen display device
US10168565B2 (en) In-cell touch display device
US8803826B2 (en) Flat panel display with built-in touch sensors
JP6253923B2 (en) Organic electroluminescence device with built-in touch sensor
KR101230196B1 (en) Liquid Crystal Display having a Touch Screen Panel
US9256326B2 (en) Method of fabricating touch screen panel
KR101686108B1 (en) Display device associated with touch panel
TWI390280B (en) Touch panel display and touch display device
US20110175846A1 (en) Touch display panel
JP6055225B2 (en) Display device with touch panel
TWI590115B (en) Touch panel and display apparatus including the same
US20140313439A1 (en) Display device
KR20130017745A (en) Display device integrated with touch screen
JP2011187041A (en) Flat panel display integrated with touch screen panel
US20130242211A1 (en) In-cell touch display panel structure
KR101901253B1 (en) Display Device integrating with Touch Screen and Method for Manufacturing the Same
US10520761B2 (en) Method of producing substrate having alignment mark
KR20180062292A (en) Touch Screen Integrated Display Device and Method for Manufacturing the Same
WO2018099069A1 (en) Touch display screen, display device, and touch panel
US9036110B2 (en) Display apparatus and method of manufacturing the same
TWI674523B (en) Touch display apparatus
US10658610B2 (en) Display apparatus
KR200474148Y1 (en) Touch-sensitive display apparatus
CN109917576A (en) Liquid crystal display device
CN114637421A (en) Touch control device

Legal Events

Date Code Title Description
AS Assignment

Owner name: INNOLUX CORPORATION, TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CHANG, CHIH-KUEI;REEL/FRAME:035968/0561

Effective date: 20150702

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION