CN1506727A - Planar display with touch panel - Google Patents
Planar display with touch panel Download PDFInfo
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- CN1506727A CN1506727A CNA021540810A CN02154081A CN1506727A CN 1506727 A CN1506727 A CN 1506727A CN A021540810 A CNA021540810 A CN A021540810A CN 02154081 A CN02154081 A CN 02154081A CN 1506727 A CN1506727 A CN 1506727A
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- transparency carrier
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Abstract
The planar display with touch panel has its light guiding board of front light source used as the base board for touch panel and this can save a glass base board for touch panel.
Description
Technical field
The present invention relates to a kind of front light-source LCD of combination of touch control panel, on particularly a kind of optical plate of the front light-source that contact panel is combined in LCD.
Background technology
Light (front light) utilized the V-type tangent plane (V-cut) of optical plate (light guide panel) that light source is imported LCD as light source then before traditional reflective (reflective type) LCD was generally all used.As shown in Figure 1, a ground 100 as the reflective liquid-crystal display lower glass substrate have a matrix form thin film transistor (TFT) 102, one protective seams 104 thereon, and a reflection horizon 106 is positioned on the protective seam 104.One top glass substrate 114 is positioned on the reflection horizon 106.Polarizer 116 and polarization plates (polarizing board) 118 are arranged on top glass substrate 114 in regular turn, and top glass substrate 114 with respect to the place of polarization plates 118 chromatic colour filter 112 and transparency conducting layer 110 in regular turn.Liquid crystal 108 flows between the lower glass substrate 100,114, particularly between the reflection horizon 106 of the transparency conducting layer 110 of top glass substrate 114 and lower glass substrate 100.Be an optical plate 120 on polarization plates 118, and light source 122 is positioned on the end surfaces (end surface) of optical plate 120.The light beam that is sent from light source 122 imports LCD via optical plate 120 backs, and the mode of utilizing reflecting plate 106 again is to realize reflective liquid-crystal display.Above-mentioned reflective liquid-crystal display can see for details in United States Patent (USP) 6323919 or United States Patent (USP) 6340999.
We usually need use contact panel (touchpanel) on display screen in the daily life of reality, for example in the introduction of sight-seeing resort.Present reflection LCD is if need mostly be covered on the preceding tabula rasa structure during increase contact panel.As shown in Figure 2, demonstration is a kind of directly directly pastes contact panel 140 on reflective liquid-crystal display 130.Nissha is at patent WO9963394, JP11344695, and preceding light formula LCD in conjunction with contact panel is disclosed among the JP2000162594, as shown in Figure 3.Yet, thisly directly contact panel is covered on the liquid crystal panel, just can not increase the thickness and the weight of whole demonstration module, also can reduce the penetrance of light simultaneously.In addition, too many transparent glass layer not only can cause the dark excessively problem of the depth of field, also can significantly increase the weight of whole demonstration module simultaneously.
Summary of the invention
In above-mentioned background of invention, tradition directly directly pastes the many shortcomings that produced with contact panel on preceding smooth formula panel of LCD, fundamental purpose of the present invention is to provide the structure of preceding light liquid crystal panel of a kind of combination and touch panel, wherein the transparency carrier up and down of display panels is to replace lower glass substrate with plastic cement to do design starting point, and utilize and go up the design of transparency carrier for optical plate, go up simultaneously the V-type tangent plane zone, top of plastic substrate, be be different from the transparency carrier material with via the formed transparent resin layer of flatening process, and then the coating transparency conducting layer, as the polycrystalline substance of transparent touch-control panel.At last, utilize the technology of transparent touch-control panel to reach the lightening design of demonstration module.
Another object of the present invention is to provide the structure of preceding light liquid crystal panel of a kind of combination and resistive touch panel.
Another purpose of the present invention has been to provide the structure of preceding light liquid crystal panel of a kind of combination and film-type resistive touch panel.
A further object of the present invention is to provide the structure with light liquid crystal panel and touch panel before the lightening combination that is designed to consider.In the present invention owing to be substrate with the plastic cement, and be combined into one simultaneously and do the design consideration the last transparency carrier and the touch panel of LCD.Moreover, and utilize of the design of this plastic substrate for optical plate and touch panel, and then reach the lightening design of demonstration module.
Behave the too dark problem of the depth of field that denounces and increased light transmittance of light before next purpose of the present invention is to reduce at present.
Next purpose more of the present invention is that lower glass substrate can be used plastic cement or glass is substrate, and the material of optical plate can be the material V-type tangent plane of ultraviolet hardening resin.
Of the present invention time a purpose is the design's the purpose saving polaroid and the area of attachment of polarizer, and then reaches the saving of material.Because the end surfaces that polaroid in the present invention and polarizer are attached at transparency carrier, so show that the thickness of module can be thin than conventional art.
Another purpose of the present invention is to reduce light in the light energy losses that medium caused that penetrates whole demonstration module, and then the consumption that has improved luminous energy and reduced power.
According to above-described purpose, the invention provides a kind of flat-panel screens with contact panel, comprise a reflective liquid-crystal display, and a contact panel.Above-mentioned reflective liquid-crystal display comprises that at least a transparency carrier and one are positioned at light source on the end surfaces of aforesaid transparency carrier.Above-mentioned contact panel is positioned on the aforesaid reflective liquid-crystal display, at least comprise that one is positioned at first transparency conducting layer on the aforesaid transparency carrier, one is positioned at the adhesion layer on aforesaid first transparency conducting layer, and second transparency conducting layer that is positioned on the aforesaid adhesion layer, wherein aforesaid transparency carrier is as the substrate of aforesaid contact panel.
Description of drawings
Fig. 1 shows the structural representation of traditional reflective liquid-crystal display;
Fig. 2 shows a kind of synoptic diagram that contact panel directly is covered on LCD;
Fig. 3 shows the another kind of structural representation that contact panel directly is covered on LCD;
Fig. 4 shows the structural representation of a kind of combination of touch control panel of the present invention and reflective liquid-crystal display;
Fig. 5 shows the technology of general contact panel and the synoptic diagram of assembly;
Fig. 6 shows the structural representation of another kind of combination of touch control panel of the present invention and reflective liquid-crystal display; And
Fig. 7 shows the structural representation of another combination of touch control panel of the present invention and reflective liquid-crystal display.
Description of reference numerals in the accompanying drawing is as follows:
10 first transparency carriers, 12 array thin film transistor (TFT)s
14 protective seams, 16 reflection horizon
18 liquid crystal, 20 transparency conducting layers
22 color filters, 24 second transparency carriers
26 polarizers, 28 polarization plates
30 light sources, 32 light sources
38 optical plates, 42 transparent membranes
44 transparent conductor layers, 46 adhesion layers
48 electric pole plates, 50 contact panels
52 electric pole plates, 54 adhesion layers
56 lower electrode plates, 522 thin layers
Conductive layer on 524 pet layers 526
528 elargol layers, 562 elargol layer
564 insulation courses, 566 lower conductiving layers
568 infrabasal plates, 100 grounds
102 matrix form thin film transistor (TFT)s, 104 protective seams
106 reflection horizon, 108 liquid crystal
110 transparency conducting layers, 112 color filters
114 top glass substrate, 116 polarizers
118 polarization plates, 120 optical plates
122 light sources, 130 reflective liquid-crystal displays
140 contact panels
Embodiment
Some embodiments of the present invention are described in detail as follows.Yet except describing in detail, the present invention can also implement in other embodiment widely, and scope of the present invention do not limited, and it is as the criterion with appended claim.
The present invention mainly provides a kind of flat-panel screens with contact panel, comprises a reflective liquid-crystal display, and a contact panel.Above-mentioned reflective liquid-crystal display comprises that at least a transparency carrier and is positioned at light source on the end surfaces of aforesaid transparency carrier, and wherein above-mentioned transparency carrier is an optical plate, and its material can use plastic substrate.Above-mentioned contact panel is positioned on the aforesaid reflective liquid-crystal display, at least comprise that one is positioned at first transparency conducting layer on the aforesaid transparency carrier, one is positioned at the adhesion layer on aforesaid first transparency conducting layer, and second transparency conducting layer that is positioned on the aforesaid adhesion layer, wherein aforesaid transparency carrier is as the substrate of aforesaid contact panel.
The above-mentioned flat-panel screens with contact panel more comprises a transparent thin film layer between aforesaid transparency carrier and aforesaid first transparency conducting layer, and its material is a transparent resin, is formed via flatening process.The optical index of wherein above-mentioned optical plate is different with the optical index of aforesaid transparent membrane.
The above-mentioned flat-panel screens with contact panel more comprises a polarization plates between the end surfaces of aforesaid light source and aforesaid optical plate.
The above-mentioned flat-panel screens with contact panel more comprises a polarizer between the end surfaces of aforesaid light source polarization plates and aforesaid optical plate.
The above-mentioned flat-panel screens with contact panel more comprises a polarizer between the end surfaces of aforesaid light source and aforesaid optical plate.
Above-mentioned reflective liquid-crystal display comprises a color filter of opposite side that is positioned at relative this contact panel of aforesaid optical plate, and the optical index of wherein above-mentioned optical plate is different with the optical index of aforesaid color filter.In addition, above-mentioned reflective liquid-crystal display comprises a transparent plate of opposite side that is positioned at the aforesaid relatively contact panel of aforesaid optical plate, and wherein the hardness of transparent plate is greater than the hardness of aforesaid optical plate.The material of above-mentioned optical plate can be ultraviolet hardening resin, and the material of transparent plate can be clear glass.
Above-mentioned flat-panel screens with contact panel, light source wherein can be two light source patterns, it lays respectively on the two relative end surfaces of aforesaid transparency carrier.
The present invention provides a kind of structure in conjunction with front light-source liquid crystal panel and contact panel simultaneously, be included on one first substrate matrix form thin film transistor (TFT) is arranged in regular turn, one liquid crystal layer, with one second transparency carrier, and one is positioned at the light source on the end surfaces of aforesaid second transparency carrier, one polarization plates between aforesaid light source and aforesaid second transparency carrier, one polarizer between aforesaid polarization plates and aforesaid second transparency carrier, be positioned at simultaneously the transparent membrane on aforesaid second transparency carrier in regular turn, one first transparency conducting layer, one adhesion layer, and one second transparent membrane.The first wherein above-mentioned substrate, the matrix form thin film transistor (TFT), liquid crystal layer, second transparency carrier, light source, polarization plates, polarizer, and transparent membrane constitutes aforesaid front light-source liquid crystal panel.Wherein above-mentioned transparent membrane, first transparency conducting layer, adhesion layer, and second transparent thin film layer constitutes aforesaid contact panel.
Next, an embodiment with flat-panel screens of contact panel is described according to the present invention.As shown in Figure 4, one first transparency carrier 10 is as the following transparency carrier of LCD, and its material can use plastic cement or glass.When the material of first transparency carrier uses plastic cement, can reach the light-weighted purpose of display.When the material of first transparency carrier uses glass, large-sized display there is preferable rigidity.Matrix form or array thin film transistor (TFT) 12 are formed on first transparency carrier 10, as the gauge tap of LCD to increase the reaction time of LCD.One protective seam 14 is formed on the thin film transistor (TFT) 12 and first transparency carrier 10, in order to protective film transistor 12.One be used for reflecting before reflection of light layer 16, in this enforcement, be positioned on the protective seam 14, yet also can be positioned at the below of first transparency carrier 10.What next be positioned at 16 tops, reflection horizon is liquid crystal 18 in regular turn, as the indium sb oxide layer of transparency conducting layer 20, and as the color filter 22 of color monitor, and as second transparency carrier 24 of last transparency carrier.The material of second transparency carrier 24 can use plastic cement or glass.When the material of second transparency carrier 24 uses plastic cement, can reach the light-weighted purpose of display.When the material of second transparency carrier 24 uses glass, large-sized display there is preferable rigidity.In the present invention, second transparency carrier 24 can be used as optical plate, and is not limited to flat board, contract template, any optical plate of hollow sheeting or other patterns.In addition, the optical index of the optical index of second transparency carrier 24 and color filter 22 and inequality.
One light source 30 is arranged on an end surfaces of second transparency carrier 24, and polarization plates 28 and polarizer 26 are arranged between the light source 30 and second transparency carrier.In the present invention, light source 30 can use the cold cathode fluorescent tube, light emitting diode, or other similar light source.Second transparency carrier 24 can utilize other guiding device such as V-type tangent plane or site that the light source of side is down imported LCD.The polarizer 26 here, employed is the polarizer of 1/4 wavelength.Such structure can be saved the area of attachment of Polarizer 28 and polarizer 26, has also reduced the thickness of whole demonstration module simultaneously.
In the present invention, be with the substrate of second transparency carrier 24, so can on second transparency carrier 24, be coated with the lower electrode plate of transparent conductor layer 44 as contact panel as traditional contact panel.On transparent conductor layer 44, form adhesion layer 46 and electric pole plate 48 then in regular turn in regular turn to finish a contact panel.Be to use the contact panel of resistance-type in the present invention.Fig. 5 mainly is technology and an assembly of introducing general contact panel, wherein electric pole plate 52 is made up of with 528 on elargol layer (silver bus) thin layer (film) 522, pet layer 524, last conductive layer (conductive coating) 526 in regular turn, and lower electrode plate 56 is made up of with infrabasal plate 568 elargol layer (silver bus) 562, insulation course (spacer dots) 564, lower conductiving layer (conductive coating) 566 in regular turn, and infrabasal plate of the present invention just is to use second transparency carrier of LCD.
When second transparency carrier 24 of LCD during as optical plate, its surface is not smooth, therefore must form a transparent membrane 42 and pass through flatening process on second transparency carrier 24.The material of transparent membrane 42 can use transparent resin, and the optical index of its optical index and second transparency carrier 24 and inequality.
In the present invention, as second transparency carrier 24 of the last transparency carrier of liquid crystal panel, might not be as optical plate.As shown in Figure 6, it is an alternative embodiment of the invention, wherein the material of second transparency carrier 24 is to use glass, utilizes the V-type tangent plane or the guiding device of other types then on second transparency carrier 24, and the optical plate made from the material of ultraviolet light photopolymerization resin 38.Such texture ratio is fit to use on large-sized display device.
Moreover light source of the present invention is not to be only limited to the use single light source.As shown in Figure 7, has a light source 30,32 respectively in the relative both sides of second transparency carrier 24, to improve the brightness of whole demonstration module.
The present invention utilizes the transparent ground of the last transparency carrier of LCD as the lower electrode plate of contact panel, truly have goodish advantage.Mostly at glass substrate itself, and thickness also causes module thickness to increase because of preceding photoconduction optical mode group and contact panel with respect to the main weight of the LCD module that contains touch panel at present.Therefore the designed demonstration module of the present invention has lightening advantage, can reduce the too dark problem of the depth of field that at present preceding light is behaved and denounced simultaneously.In addition, because polaroid of the present invention and polarizer are attached at the end surfaces of plastic substrate, and then can reach the saving of polaroid and polarizer patch material, and the thickness of whole demonstration module can existing technology approach.Because it is many that employed transparent material has reduced, whole demonstration module can increase light transmittance and improve brightness.
The above is the preferred embodiments of the present invention only, is not in order to limit claim of the present invention; All other do not break away from the equivalence of being finished under the spirit disclosed in this invention and changes or modification, all should be included in the appended claim.
Claims (19)
1. flat-panel screens with contact panel comprises:
One reflective liquid-crystal display comprises that at least a transparency carrier and a light source are positioned on the end surfaces of this transparency carrier; And
One contact panel is positioned on this reflective liquid-crystal display, at least comprise that one first transparency conducting layer is positioned on this transparency carrier, one adhesion layer is positioned on this first transparency conducting layer, and one second transparency conducting layer is positioned on this adhesion layer, and wherein this transparency carrier is as the substrate of this contact panel.
2. the flat-panel screens with contact panel as claimed in claim 1, wherein above-mentioned transparency carrier are an optical plate.
3. the flat-panel screens with contact panel as claimed in claim 2 more comprises a transparent thin film layer between this transparency carrier and this first transparency conducting layer.
4. the flat-panel screens with contact panel as claimed in claim 3, the material of wherein above-mentioned transparent membrane are transparent resin.
5. the flat-panel screens with contact panel as claimed in claim 3, wherein above-mentioned transparent membrane forms via flatening process.
6. the flat-panel screens with contact panel as claimed in claim 3, the optical index of wherein above-mentioned optical plate is different with the optical index of this transparent membrane.
7. the flat-panel screens with contact panel as claimed in claim 2 more comprises a polarization plates between the end surfaces of this light source and this optical plate.
8. the flat-panel screens with contact panel as claimed in claim 7 more comprises a polarizer between the end surfaces of this polarization plates and this optical plate.
9. the flat-panel screens with contact panel as claimed in claim 2 more comprises a polarizer between the end surfaces of this light source and this optical plate.
10. the flat-panel screens with contact panel as claimed in claim 2, wherein above-mentioned reflective liquid-crystal display comprises the opposite side that a color filter is positioned at relative this contact panel of this optical plate.
11. as the flat-panel screens with contact panel of claim 10, the optical index of wherein above-mentioned optical plate is different with the optical index of this color filter.
12. the flat-panel screens with contact panel as claimed in claim 2, the material of wherein above-mentioned optical plate are plastic substrate.
13. the flat-panel screens with contact panel as claimed in claim 2, wherein above-mentioned reflective liquid-crystal display comprises the opposite side that a transparent plate is positioned at relative this contact panel of this optical plate, and the hardness of this transparent plate is greater than the hardness of this optical plate.
14. as the flat-panel screens with contact panel of claim 13, the material of wherein above-mentioned optical plate is a ultraviolet hardening resin.
15. as the flat-panel screens with contact panel of claim 13, the material of wherein above-mentioned transparent plate is a clear glass.
16. the flat-panel screens with contact panel as claimed in claim 1, wherein above-mentioned light source are two light source patterns, it lays respectively on the two relative end surfaces of this transparency carrier.
17. the structure in conjunction with front light-source liquid crystal panel and contact panel comprises:
One first substrate;
A plurality of matrix form thin film transistor (TFT)s are positioned on this first substrate;
One liquid crystal layer is positioned on these a plurality of matrix form thin film transistor (TFT)s;
One second transparency carrier is positioned on this liquid crystal layer;
One light source is positioned on the end surfaces of this second transparency carrier;
One polarization plates is between this light source and this second transparency carrier;
One polarizer is between this polarization plates and this second transparency carrier;
One transparent membrane is positioned on this second transparency carrier;
One first transparency conducting layer is positioned on this transparent membrane;
One adhesion layer is positioned on this first transparency conducting layer; And
One second transparent membrane is positioned on this first transparent membrane.
18. structure in conjunction with front light-source liquid crystal panel and contact panel as claim 17, the first wherein above-mentioned substrate, these a plurality of matrix form thin film transistor (TFT)s, this liquid crystal layer, this second transparency carrier, this light source, this polarization plates, this polarizer, and this transparent membrane constitutes this front light-source liquid crystal panel.
19. as the structure in conjunction with front light-source liquid crystal panel and contact panel of claim 18, wherein above-mentioned transparent membrane, this first transparency conducting layer, this adhesion layer, and this second transparent thin film layer constitutes this contact panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021540810A CN1289950C (en) | 2002-12-10 | 2002-12-10 | Planar display with touch panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021540810A CN1289950C (en) | 2002-12-10 | 2002-12-10 | Planar display with touch panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1506727A true CN1506727A (en) | 2004-06-23 |
| CN1289950C CN1289950C (en) | 2006-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021540810A Expired - Fee Related CN1289950C (en) | 2002-12-10 | 2002-12-10 | Planar display with touch panel |
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| CN (1) | CN1289950C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101211246B (en) * | 2006-12-26 | 2010-06-23 | 乐金显示有限公司 | Organic light-emitting diode panel and touch-screen system including the same |
| WO2012062074A1 (en) * | 2010-11-09 | 2012-05-18 | Tpk Touch Solutions Inc. | Touch panel stackup |
| CN101739163B (en) * | 2008-11-14 | 2012-06-13 | 毅嘉科技股份有限公司 | Control panel and manufacture method thereof |
| US8810521B2 (en) | 2005-08-02 | 2014-08-19 | Nlt Technologies, Ltd. | Liquid crystal display apparatus |
| CN107991811A (en) * | 2018-01-29 | 2018-05-04 | 广东小天才科技有限公司 | Front light-source liquid crystal display and its manufacture method |
| WO2020187105A1 (en) * | 2019-03-15 | 2020-09-24 | 京东方科技集团股份有限公司 | Reflective liquid crystal display apparatus and preparation method therefor |
-
2002
- 2002-12-10 CN CNB021540810A patent/CN1289950C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8810521B2 (en) | 2005-08-02 | 2014-08-19 | Nlt Technologies, Ltd. | Liquid crystal display apparatus |
| CN101211246B (en) * | 2006-12-26 | 2010-06-23 | 乐金显示有限公司 | Organic light-emitting diode panel and touch-screen system including the same |
| US8890850B2 (en) | 2006-12-26 | 2014-11-18 | Lg Display Co., Ltd. | Organic light-emitting diode panel and touch-screen system including the same |
| CN101739163B (en) * | 2008-11-14 | 2012-06-13 | 毅嘉科技股份有限公司 | Control panel and manufacture method thereof |
| WO2012062074A1 (en) * | 2010-11-09 | 2012-05-18 | Tpk Touch Solutions Inc. | Touch panel stackup |
| US10691266B2 (en) | 2010-11-09 | 2020-06-23 | Tpk Touch Solutions, Inc. | Touch panel stackup |
| CN107991811A (en) * | 2018-01-29 | 2018-05-04 | 广东小天才科技有限公司 | Front light-source liquid crystal display and its manufacture method |
| WO2020187105A1 (en) * | 2019-03-15 | 2020-09-24 | 京东方科技集团股份有限公司 | Reflective liquid crystal display apparatus and preparation method therefor |
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| Publication number | Publication date |
|---|---|
| CN1289950C (en) | 2006-12-13 |
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Granted publication date: 20061213 Termination date: 20171210 |