CN101900905A - Touch liquid crystal display - Google Patents
Touch liquid crystal display Download PDFInfo
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- CN101900905A CN101900905A CN2010102345200A CN201010234520A CN101900905A CN 101900905 A CN101900905 A CN 101900905A CN 2010102345200 A CN2010102345200 A CN 2010102345200A CN 201010234520 A CN201010234520 A CN 201010234520A CN 101900905 A CN101900905 A CN 101900905A
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Abstract
The invention relates to a touch liquid crystal display which comprises a liquid crystal display panel and a touch panel, wherein the liquid crystal display panel comprises a first polarizing sheet, a thin film field effect transistor array arranged on the first polarizing sheet, a color filter arranged on the first polarizing sheet, a second polarizing sheet arranged on the color filter and a phase delay sheet arranged on the second polarizing sheet; the touch panel is arranged opposite to the liquid crystal display panel and comprises a circular polarizing sheet arranged opposite to the liquid crystal display panel and a conducting glass layer arranged on the circular polarizing sheet; and an air gap is also formed between the liquid crystal display panel and the touch panel. The touch liquid crystal display can eliminate reflected light rays, and thus, the quality of the touch liquid crystal display is improved.
Description
Technical field
The present invention relates to a kind of LCD, and be particularly related to a kind of touch-control liquid crystal display.
Background technology
At present, along with the development of display technology, touch Thin Film Transistor (TFT) LCD (Thin Film Transistor Liquid Crystal Display is generally used in beginning on the various electronic products; TFTLCD) as display device.See also touch TFT LCD structure shown in Figure 1, traditional and mainly comprise liquid crystal panel 10 and contact panel 30, wherein liquid crystal panel comprises first polaroid 11; Thin Film Transistor (TFT) array 12 is arranged on described first polaroid 11; Colored filter 14, be arranged at described first polaroid 11 on; Second polaroid 16 is arranged on the described colored filter 14.30 of contact panels comprise a diaphragm 31 and electro-conductive glass 32, are formed on the described electro-conductive glass 32.
Normally, in the processing procedure of TFT LCD, tend to exist air gap (air gap between liquid crystal panel 10 and the contact panel 30; AP) 20; when light incident is arranged in the external environment condition; boundary reflection rate between boundary reflection rate between diaphragm 31 and the extraneous air and the air in the air gap 20 and second polaroid 16 all can cause reflection ray strong excessively because dieletric reflection rate difference is big, and can cause the picture quality of LCD to reduce thus.In order to address the above problem; the touch-control liquid crystal display production firm that has adopts optical cement adhesion liquid crystal panel 10 and contact panel 30; thus; air gap between liquid crystal panel 10 and the contact panel 30 becomes optical cement; and the boundary reflection rate between diaphragm 31 and the optical cement; and the boundary reflection rate between the optical cement and second polaroid 16 all can significantly dwindle because of medium refraction index difference, thereby reduces extraneous light (surround lighting) reflection, and increases the optical efficiency of this TFT LCD.But, because of causing the yield of product easily, the processing procedure reason descends in actual production process by optical cement slurry crystal panel 10 and contact panel 30, and manufacturing cost is higher, also is difficult for heavy industry simultaneously when product goes wrong.
Thus, be necessary to propose a kind of new touch-control liquid crystal display, can effectively improve optical efficiency, and processing procedure be simple and convenient, is applicable in the actual production.
Summary of the invention
Therefore, the invention reside in provides a kind of touch-control liquid crystal display, can effectively reduce the strong excessively problem of reflection ray of described touch-control liquid crystal display.
According to an aspect of the present invention, provide a kind of touch-control liquid crystal display, having comprised: display panels comprises: first polaroid; The Thin Film Transistor (TFT) array is arranged on the described polaroid; Colored filter is on setting and the described polaroid; Second polaroid is arranged on the described colored filter; And phase delay chip, be arranged on described second polaroid; And contact panel, be oppositely arranged with described display panels, comprising: circular polarizing disk is oppositely arranged with described display panels; And conductive glass layer, be arranged on the described circular polarizing disk; Also be formed with an air gap between wherein said contact panel and the described display panels.
By touch-control liquid crystal display of the present invention, can absorb reflection of incident light light by circular polarizing disk, and change the polarization state of light, thereby effectively reduce catoptrical generation by described phase delay chip.
Description of drawings
For above-mentioned purpose of the present invention and further feature, advantage and embodiment can be become apparent, being described in detail as follows of appended accompanying drawing:
Fig. 1 is the structural representation of existing touch-control liquid crystal display;
Fig. 2 is the structural representation of the touch-control liquid crystal display of one embodiment of the invention;
Fig. 3 is the incident ray polarization synoptic diagram of touch-control liquid crystal display shown in Figure 2; And
Fig. 4 is the polarization of light synoptic diagram of touch-control liquid crystal display shown in Figure 2.
[primary clustering symbol description]
10: thin film field-effect pipe display panels 20: air gap
Polaroid 30 in 11: the first: contact panel
12: thin film field-effect pipe array 31: diaphragm
14: colored filter 32: electro-conductive glass
Polaroid 33 in 16: the second: circular polarizing disk
18: phase delay chip
Embodiment
Below will and describe clear explaination embodiments of the present invention in detail with accompanying drawing, for the purpose of simplifying accompanying drawing, some known habitual structures and assembly will illustrate in the mode of simple signal in the accompanying drawings.Equally, for the purpose of simplified illustration, if no special instructions, in accompanying drawing of the present invention, same label is represented components identical.Yet, should be pointed out that above-mentioned way only for for example and illustrate the usefulness of the specific embodiment of the invention, and should not be construed as any limitation of the invention.
See also Fig. 2, be depicted as the structural representation of the touch-control liquid crystal display of one embodiment of the invention.Touch-control liquid crystal display shown in Figure 2 comprises Thin Film Transistor (TFT) display panels (ThinFilm Transistor Liquid Crystal Display; TFT LCD) 10 and contact panel 30.In the present embodiment, contact panel 30 comprises electro-conductive glass 32 and circular polarizing disk 33.Wherein electro-conductive glass 32 is generally transparent conductive material and forms, in the present embodiment, this electro-conductive glass 32 is tin indium oxide (being commonly called as an ITO) glass, normally on the basis of sodium calcium base or silicon boryl substrate glass, utilizes the method for magnetron sputtering to plate skim processing and fabricating and forms.In addition, circular polarizing disk 33 is formed at a side of described electro-conductive glass 32, is oppositely arranged with described TFT LCD.In the present embodiment, this circular polarizing disk 33 is used for the incident path of incident light is carried out deflection, and produces circularly polarized light.
In the present embodiment, this TFT LCD 10 comprises first polaroid 11, Thin Film Transistor (TFT) array 12, colored filter 14, second polaroid 16 and phase delay chip 18.Wherein first polaroid 11 is a linear polarizer, can become linearly polarized light to incident light, complex light or monochromatic light, passes through the polaroid delustring again.Thin Film Transistor (TFT) array 12 is arranged on described first polaroid 11.Colored filter 14 is arranged on this Thin Film Transistor (TFT) array 12.Second polaroid 16 places on this colored filter 14.In the present embodiment, this first polaroid 11 and second polaroid 16 are linear polarizer, can change incident ray into linearly polarized light.Second polaroid 16 is provided with a phase delay chip 18, and in the present embodiment, described phase delay chip 18 is λ/4 phase delay chips, and is provided with towards described contact panel 30,
Please further consult Fig. 2, an air gap 20 is arranged between described TFT LCD 10 and the described contact panel 30.This is that like this, when light incident, this air gap 20 can exert an influence to incident ray because of the refractive index of air because in the conventional process, TFT LCD 10 makes respectively to go afterwards with contact panel 30 again and combines.
See also Fig. 3, be depicted as the incident ray deflection synoptic diagram of touch-control liquid crystal display shown in Figure 2.As shown in Figure 3, when extraneous light (surround lighting) (see also band arrow lines shown in) by described conductive glass layer 32 during to described TFT LCD 10 incidents, by described circular polarizing disk 33 time, form circularly polarized light, in the present embodiment, described circularly polarized light is the circularly polarized light of a clockwise direction polarization.Simultaneously, during the boundary reflection of the circularly polarized light of described clockwise direction polarization between described circular polarizing disk 33 and air gap 20, form opposite circular polarization light, in the present embodiment, described opposite circular polarization light is the circularly polarized light of a counter clockwise direction polarization, and the opposite circular polarization light of described counter clockwise direction deflection can be absorbed by described circular polarizing disk 33 this moment.
Please further consult Fig. 3, when extraneous light (surround lighting) by described conductive glass layer 32 during to described TFT LCD 10 incidents, by described circular polarizing disk 33 time, form circularly polarized light, in the present embodiment, described circularly polarized light is the circularly polarized light of a clockwise direction polarization.Simultaneously, when the circularly polarized light of described clockwise polarization passes described circular polarizing disk 33, arrive the interface between described air gap 20 and described λ/4 phase delay chips 18, and also form reverse circularly polarized light when being reflected, in the present embodiment, described opposite circular polarization light is the circularly polarized light of a counter clockwise direction polarization, and this moment, this reverse circularly polarized light was also absorbed by described circular polarizing disk 33.
In the present embodiment, thus, when extraneous light (surround lighting) during by described electro-conductive glass 32 incidents, described extraneous light (surround lighting) then can not cause the increase of contrast because of reflection in described touch-control liquid crystal display.
See also Fig. 4, be depicted as the incident ray deflection synoptic diagram of touch-control liquid crystal display shown in Figure 2.In the present embodiment, when incident ray (the picture light of TFT LCD) during from the incident backlight of TFT LCD 10, described incident ray arrives described second polaroid 16 places.Described incident ray forms linearly polarized light at described second polaroid 16 places, described linearly polarized light changes into circularly polarized light through described λ/4 phase delay chips 18, and in the present embodiment, described circularly polarized light is the circularly polarized light of a clockwise direction polarization.The circularly polarized light of described clockwise direction polarization can pass through described air gap 20 and described circular polarizing disk 33, and arrives described electro-conductive glass 32 places.Be converted into the line deflection when at this moment, the circularly polarized light of described clockwise direction polarization is through described electro-conductive glass 32 again.Thus, the picture light of TFT LCD can arrive the surface of described touch-control liquid crystal display smoothly.
Touch-control liquid crystal display of the present invention, absorb and eliminate outside incident ray by described circular polarizing disk, and by described λ/4 phase delay chips and linear polarizer picture light, thereby effectively improve the quality of described touch-control liquid crystal display by described display panels.And touch-control liquid crystal display of the present invention can avoid using the clearance in the optical cement eliminating touch-control liquid crystal display, has reduced the difficulty on the processing procedure, is applicable to actual production.
Though content of the present invention discloses as above with embodiment; right its is not in order to limit content of the present invention; any those skilled in the art; in the spirit and scope that do not break away from content of the present invention; when can doing various changes and modification, so the protection domain of content of the present invention should be as the criterion with the scope that claims were defined.
Claims (6)
1. a touch-control liquid crystal display is characterized in that, described touch-control liquid crystal display comprises: display panels comprises:
First polaroid;
The Thin Film Transistor (TFT) array is arranged on the described polaroid;
Colored filter is on setting and the described polaroid;
Second polaroid is arranged on the described colored filter; And
Phase delay chip is arranged on described second polaroid; And contact panel, be oppositely arranged with described display panels, comprising:
Circular polarizing disk is oppositely arranged with described display panels; And
Conductive glass layer is arranged on the described circular polarizing disk; Also be formed with a clearance between wherein said contact panel and the described display panels.
2. touch-control liquid crystal display according to claim 1 is characterized in that, described phase delay chip is λ/4 phase delay chips.
3. touch-control liquid crystal display according to claim 1 is characterized in that, described first polaroid and described second polaroid are linear polarizer.
4. touch-control liquid crystal display according to claim 2 is characterized in that, described circular polarizing disk is used for an outside incident ray is converted to the first circular deflection light.
5. touch-control liquid crystal display according to claim 4, it is characterized in that, described λ/4 phase delay chips are used to reflect the described first circular deflection light, so that the described first circular deflection light is converted to the second circular deflection light, the yawing moment of the described second circular deflection light is opposite with the yawing moment of the described first circular deflection light.
6. touch-control liquid crystal display according to claim 5 is characterized in that, described circular polarizing disk also is used to absorb the described second circular deflection light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102345200A CN101900905A (en) | 2010-07-20 | 2010-07-20 | Touch liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102345200A CN101900905A (en) | 2010-07-20 | 2010-07-20 | Touch liquid crystal display |
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| CN101900905A true CN101900905A (en) | 2010-12-01 |
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| CN2010102345200A Pending CN101900905A (en) | 2010-07-20 | 2010-07-20 | Touch liquid crystal display |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105235481A (en) * | 2015-10-30 | 2016-01-13 | 福耀玻璃工业集团股份有限公司 | A luminous-effect-adjustable vehicle sunroof assembly |
| CN105291789A (en) * | 2015-10-30 | 2016-02-03 | 福耀玻璃工业集团股份有限公司 | Vehicle skylight assembly with adjustable glowing effect |
| CN105291788A (en) * | 2015-10-30 | 2016-02-03 | 福耀玻璃工业集团股份有限公司 | Vehicle skylight assembly with adjustable glowing effect |
| CN106441564A (en) * | 2015-08-05 | 2017-02-22 | 唯亚威通讯技术有限公司 | Optical filter and spectrometer |
| US10190910B2 (en) | 2014-01-31 | 2019-01-29 | Viavi Solutions Inc. | Optical filter and spectrometer |
-
2010
- 2010-07-20 CN CN2010102345200A patent/CN101900905A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10190910B2 (en) | 2014-01-31 | 2019-01-29 | Viavi Solutions Inc. | Optical filter and spectrometer |
| CN106441564A (en) * | 2015-08-05 | 2017-02-22 | 唯亚威通讯技术有限公司 | Optical filter and spectrometer |
| US10048127B2 (en) | 2015-08-05 | 2018-08-14 | Viavi Solutions Inc. | Optical filter and spectrometer |
| CN106441564B (en) * | 2015-08-05 | 2019-01-11 | 唯亚威通讯技术有限公司 | Optical filter and spectroscope |
| CN109579990A (en) * | 2015-08-05 | 2019-04-05 | 唯亚威通讯技术有限公司 | Optical filter and spectroscope |
| US10753793B2 (en) | 2015-08-05 | 2020-08-25 | Viavi Solutions Inc. | Optical filter and spectrometer |
| US11237049B2 (en) | 2015-08-05 | 2022-02-01 | Viavi Solutions Inc. | Optical filter and spectrometer |
| CN105235481A (en) * | 2015-10-30 | 2016-01-13 | 福耀玻璃工业集团股份有限公司 | A luminous-effect-adjustable vehicle sunroof assembly |
| CN105291789A (en) * | 2015-10-30 | 2016-02-03 | 福耀玻璃工业集团股份有限公司 | Vehicle skylight assembly with adjustable glowing effect |
| CN105291788A (en) * | 2015-10-30 | 2016-02-03 | 福耀玻璃工业集团股份有限公司 | Vehicle skylight assembly with adjustable glowing effect |
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Application publication date: 20101201 |