CN102207646A - Display device - Google Patents

Display device Download PDF

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Publication number
CN102207646A
CN102207646A CN2011100816868A CN201110081686A CN102207646A CN 102207646 A CN102207646 A CN 102207646A CN 2011100816868 A CN2011100816868 A CN 2011100816868A CN 201110081686 A CN201110081686 A CN 201110081686A CN 102207646 A CN102207646 A CN 102207646A
Authority
CN
China
Prior art keywords
front window
printing
plate
shaped member
display device
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.)
Pending
Application number
CN2011100816868A
Other languages
Chinese (zh)
Inventor
大平荣治
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.)
Ips Pioneer Support Society
Panasonic Liquid Crystal Display Co Ltd
Japan Display Inc
Original Assignee
Hitachi Displays Ltd
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 Hitachi Displays Ltd filed Critical Hitachi Displays Ltd
Publication of CN102207646A publication Critical patent/CN102207646A/en
Pending legal-status Critical Current

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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
    • G02F1/133308—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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/13332—Front frames
    • 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
    • G02F1/133388—Constructional arrangements; Manufacturing methods with constructional differences between the display region and the peripheral region
    • 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
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/28—Adhesive materials or arrangements

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

Abstract

The present invention provides a display device where the printed portion on the front window can be prevented from being shaved and defects can be prevented from being produced, and this display device has a display panel and a front window (FW) provided on the front side of the display panel and is characterized by having; a plate member (TP) pasted to the rear surface of the front window which is smaller than the front window; an adhesive film (30) for pasting the front window and the plate member together that is smaller than the plate member; and a printed portion (20) printed on the rear surface of the front window and formed around the display region of the display panel, and in the region (23) where the front window makes contact with the edge of the plate member, the printed portion is thicker than the other regions.

Description

Display device
Technical field
The present invention relates to display device, relate in particular to display device with front window.
Background technology
In the display device of numerous portable information device such as mobile phone, palm PC (PDA), digital camera, multimedia player, various display device such as Liquid crystal module (liquid crystal indicator), organic electroluminescence display device and method of manufacturing same are utilized.
In recent years, disclosed as JP2010-237447A, in these display device,, adopt the combination construction of having pasted transparent protective cover usually as front window (front window) in order to protect display panel.In addition, also provide multi-functional display device, proposed a kind of structure of pasting touch pad and front window in the face side of display panel successively with touch pad TP.
Touch pad shown in Figure 1 is, on the touch pad glass (touch pad screen section) of electrostatic capacitive, be connected with the flexible print circuit 11 that distribution is used, also be provided with the electronic unit 12 of the action that is used to control touch pad as required, on the other end of flexible print circuit, be formed with Interface Terminal portion 13.Fig. 2 shows the profile of front window.
On the other hand, about front window FW, on the back side of front window, except that the image display area of display panel, also be applied with printing 20.Especially, in liquid crystal indicator,, and on this printing, be applied with the printing of black system outside image display area for the light that does not make backlight etc. spills.
Fig. 3 is the vertical view that expression sticks on the touch pad TP of Fig. 1 the state on the front window FW.Fig. 4 shows along the cut-open view of the dot-and-dash line X-X ' of Fig. 3.The bonding film that front window and touch pad are pasted in Reference numeral 30 expression.
Usually, the parts that touch pad TP etc. sticks on the front window FW are littler than the size of front window, and bonding film 30 is also littler than touch pad equidimension.Therefore, as shown in Figure 5, when applying pressing force on the edge at front window, deflection takes place in front window FW, and in the part of Reference numeral A and the edge contact of touch pad TP etc., the part of printing 20 is wiped off, becomes the bad product of printing.
Also consider between printing 20 and touch pad TP, to dispose padded coaming, but owing to measure below 0.1mm in slit between the two, very narrow, therefore be difficult to the configuration padded coaming.
Summary of the invention
The technical problem to be solved in the present invention is that providing a kind of can address the above problem, and suppresses the printing of front window and is wiped off, and suppress the display device of the generation of substandard products.
The inventor has carried out active research repeatedly, and its result has proposed following scheme: as shown in Figure 6, the printing 21 of front window is thickened, thereby prevent the edge contact of touch pad etc. and printing is all wiped off.Yet find that if make printing thick than 10 μ m, near (Reference numeral B, C) generation bubble (the bonding film damaged) lap of printing 21 and bonding film 30 produces new substandard products problem easily.
In addition, also proposed following scheme: as shown in Figure 7, in the inboard of the printing 21 that thickens, forming thickness is the following thin printing zones 22 of 10 μ m, with the overlapping mode of this printing zone 22 bonding film 30 to be set.Yet find,, produced such new problem again owing to, peel off easily so front window and touch pad TP become from bonding film 30 elongated to the edge of touch pad TP apart from S.
The inventor further improves, and has invented the display device with such feature shown below, has realized the solution of above-mentioned technical matters.
(1) a kind of display device has display panel and is configured in the front window of the face side of this display panel, it is characterized in that having: stick on this front window the back side, than the little plate-shaped member of this front window size; This front window and this plate-shaped member are pasted, than the little bonding film of this plate-shaped member size; And be printed on the back side of this front window and the printing that around the viewing area of this display panel, forms, in this front window and zone that the marginal portion of this plate-shaped member contacts, make the thickness of this printing thicker than other zones.
(2) in above-mentioned (1), in the display device of record, it is characterized in that the zone that this printing thickens is the zone corresponding with the corner edge of this plate-shaped member.
In the display device of record, it is characterized in that in above-mentioned (1) or (2) that (3) zone that this printing thickens is the center with the position of the marginal portion that disposes this plate-shaped member, have the above width of 0.5mm.
(4) in above-mentioned (1) to (3), in the display device of each record, it is characterized in that,, will print overlapping coating more than twice for the zone that this printing thickens.
In the display device of each record, it is characterized in that in above-mentioned (1) to (4) that (5) this plate-shaped member is any one in touch pad screen section or the display panel.
As the present invention, in front window and zone that the marginal portion of plate-shaped member contacts, make the thickness that is printed on printing on the front window thicker than other zones, therefore, even the edge of plate-shaped members such as touch pad contacts with printing, printing all can not wiped off yet, can be suppressed the generation of substandard products.
And, form the thickness of the printing of the formed part of bonding film as thin in the past, therefore can not produce bubble between front window and the bonding film or between plate-shaped member and the adhesive film.And the distance the marginal portion from bonding film to plate-shaped member is also short, therefore also can prevent peeling off of front window and plate-shaped member.
Description of drawings
Fig. 1 is the vertical view of touch pad.
Fig. 2 is the vertical view of front window.
Fig. 3 is the vertical view of representing the state under the situation after front window and the touch pad stickup.
Fig. 4 is the cut-open view along the dot-and-dash line X-X ' of Fig. 3.
Fig. 5 is the figure that the state under the situation of front window deflection is described.
Fig. 6 is the figure that the state under the situation of the thickness increase that makes printing is described.
Fig. 7 is provided with the figure that the state under the situation of thin printing describes to the inboard at thick printing.
Fig. 8 is the vertical view of expression display device of the present invention.
Fig. 9 is the cut-open view along the dot-and-dash line X-X ' of Fig. 8.
Embodiment
The profile of touch pad with front window of the present invention is identical with Fig. 1, Fig. 2, therefore omits explanation.Below, feature of the present invention is elaborated.Fig. 8 is the vertical view of expression display device of the present invention, and Fig. 9 is the cut-open view of expression along the dot-and-dash line X-X ' among Fig. 8.
The feature of display device of the present invention is that display device has display panel (not shown) and is configured in the front window FW of the table side of this display panel, wherein, has: stick on this front window the back side, than the little plate-shaped member TP of this front window size; This front window and this plate-shaped member are pasted, than the little bonding film 30 of this plate-shaped member size; And be printed on the back side of this front window and the printing 20 that around the viewing area of this display panel, forms, in the zone (the formation zone of Reference numeral 23) that this front window contacts with the marginal portion of this plate-shaped member, make the thickness of this printing thicker than other zones.
As front window, preferably can utilize resinous materials such as acrylic material.In addition, can also utilize the structure of on tempered glass, having pasted the film that prevents to splash.
As the plate-shaped member that sticks on the front window, touch pad such shown in the JP2010-237447A is arranged.In this case, the part that sticks on the front window (FW) by bonding film is the touch pad screen section.In addition, except that touch pad, display panel self can also be sticked on the front window.Adopt at display panel under the situation of display panels or organic EL display panel, the Polarizer of being located on these display panels is sticked on the front window by bonding film.
As shown in Figure 8, the zone that thickens of preferred printing is the corresponding zone of corner edge with plate-shaped member (touch pad TP).This be because, compare with other parts, the easier deflection in the angle part of front window FW, in addition, printing is reamed by the angle part of plate-shaped member (corner edge) easily.
The zone (Reference numeral 23) that preferred printing thickens is the center with the position E of the edge part branch configuration of plate-shaped member, has the above width d of 0.5mm.Usually, the assembly precision with plate-shaped members such as touch pad TP and front window is set at below the 0.2mm.Therefore, if plate-shaped member is offset with respect to front window in this scope, the mode that also can be all the time enters in the thick printing zone with the marginal portion of plate-shaped member constitutes.
The formation method in the zone that thickens as printing zone preferably will be printed overlapping coating more than twice.Thus, can easily form thick printing.In addition, the thickness setting in the zone beyond the thick printing is below the 10 μ m, and the mode that can not produce bubble with bonding film is set.
In sum, according to the present invention, can provide a kind of printing that can suppress front window to be wiped and suppress off the display device of the generation of substandard products.

Claims (5)

1. a display device has display panel and the front window that is configured in the table side of this display panel, it is characterized in that having:
Stick on this front window the back side, than the little plate-shaped member of this front window size;
This front window and this plate-shaped member are pasted, than the little bonding film of this plate-shaped member size; And
Be printed on the back side of this front window and the printing that around the viewing area of this display panel, forms,
In this front window and zone that the marginal portion of this plate-shaped member contacts, make the thickness of this printing thicker than other zones.
2. display device as claimed in claim 1 is characterized in that, the zone that this printing thickens is the zone corresponding with the corner edge of this plate-shaped member.
3. display device as claimed in claim 1 is characterized in that, the zone that this printing thickens is the center with the position of the marginal portion that disposes this plate-shaped member, has the above width of 0.5mm.
4. display device as claimed in claim 1 is characterized in that, for the zone that this printing thickens, will print overlapping coating more than twice.
5. display device as claimed in claim 1 is characterized in that, this plate-shaped member is any one in touch pad screen section or the display panel.
CN2011100816868A 2010-03-30 2011-03-29 Display device Pending CN102207646A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010-078937 2010-03-30
JP2010078937A JP2011209604A (en) 2010-03-30 2010-03-30 Display device

Publications (1)

Publication Number Publication Date
CN102207646A true CN102207646A (en) 2011-10-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011100816868A Pending CN102207646A (en) 2010-03-30 2011-03-29 Display device

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US (1) US20110239510A1 (en)
JP (1) JP2011209604A (en)
KR (1) KR101162017B1 (en)
CN (1) CN102207646A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107531152A (en) * 2014-11-19 2018-01-02 Dav公司 Display device for motor vehicles

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102081828B1 (en) 2013-08-07 2020-02-27 삼성디스플레이 주식회사 Productive window for display device and display device with the same
KR102278982B1 (en) 2013-10-11 2021-07-19 삼성디스플레이 주식회사 Touch panel and display apparatus comprising the same
KR20150087655A (en) * 2014-01-22 2015-07-30 삼성디스플레이 주식회사 Window for display device and display device comprising the same
CN108762559B (en) * 2018-05-25 2021-07-27 业成科技（成都）有限公司 Touch screen and manufacturing method thereof

Citations (4)

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Publication number Priority date Publication date Assignee Title
US5811930A (en) * 1992-12-16 1998-09-22 Durel Corporation Electroluminescent lamp devices and their manufacture
KR100893498B1 (en) * 2008-09-26 2009-04-17 주식회사 토비스 Touch panel
KR20090110770A (en) * 2008-04-18 2009-10-22 (주)멜파스 Touch sensing panel including window having electrodes formed therewith as one body, and manufacturing method thereof
CN101655628A (en) * 2009-09-22 2010-02-24 上海晶舜信息科技有限公司 Show-window type touch information display screen based on touch sense film and show system thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009198851A (en) 2008-02-22 2009-09-03 Epson Imaging Devices Corp Electrooptical device and electronic equipment
JP5594713B2 (en) * 2009-03-31 2014-09-24 株式会社ジャパンディスプレイ Display device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5811930A (en) * 1992-12-16 1998-09-22 Durel Corporation Electroluminescent lamp devices and their manufacture
KR20090110770A (en) * 2008-04-18 2009-10-22 (주)멜파스 Touch sensing panel including window having electrodes formed therewith as one body, and manufacturing method thereof
KR100893498B1 (en) * 2008-09-26 2009-04-17 주식회사 토비스 Touch panel
CN101655628A (en) * 2009-09-22 2010-02-24 上海晶舜信息科技有限公司 Show-window type touch information display screen based on touch sense film and show system thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107531152A (en) * 2014-11-19 2018-01-02 Dav公司 Display device for motor vehicles
CN107531152B (en) * 2014-11-19 2020-11-10 Dav公司 Display device for a motor vehicle

Also Published As

Publication number Publication date
KR101162017B1 (en) 2012-07-03
KR20110109963A (en) 2011-10-06
US20110239510A1 (en) 2011-10-06
JP2011209604A (en) 2011-10-20

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Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
ASS Succession or assignment of patent right

Owner name: PANASONIC LCD CO., LTD.

Free format text: FORMER OWNER: IPS ALPHA SUPPORT CO., LTD.

Owner name: IPS ALPHA SUPPORT CO., LTD.

C41 Transfer of patent application or patent right or utility model
TA01 Transfer of patent application right

Effective date of registration: 20111019

Address after: Chiba County, Japan

Applicant after: Hitachi Displays, Ltd.

Co-applicant after: Panasonic Liquid Crystal Display Co.,Ltd.

Address before: Chiba County, Japan

Applicant before: Hitachi Displays, Ltd.

Co-applicant before: IPS pioneer support society

Effective date of registration: 20111019

Address after: Chiba County, Japan

Applicant after: Hitachi Displays, Ltd.

Co-applicant after: IPS Pioneer Support Society

Address before: Chiba County, Japan

Applicant before: Hitachi Displays, Ltd.

C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20111005