CN1271462C - Method for improving visual shadow of liquid-crystal displaying device and device thereof - Google Patents
Method for improving visual shadow of liquid-crystal displaying device and device thereof Download PDFInfo
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- CN1271462C CN1271462C CN 02159662 CN02159662A CN1271462C CN 1271462 C CN1271462 C CN 1271462C CN 02159662 CN02159662 CN 02159662 CN 02159662 A CN02159662 A CN 02159662A CN 1271462 C CN1271462 C CN 1271462C
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- indium oxide
- lcd
- tin indium
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Abstract
The present invention relates to a method for improving the visual shadow of a liquid crystal display and a device of the method. An empty electrode is additionally arranged on a non display area of the liquid crystal display mainly, wherein the empty electrode is a tin indium oxide (ITO/indiumtin oxide) film. Thus a display area (defining pixel) and the non display area of the liquid crystal display have the same tin indium oxide thickness, which enables the refractivity and the penetration rate of the display area and the non display area to be the same. Thus, when the liquid crystal display has no motions, a visual shading phenomenon generated on the display area can be avoided. In addition, the empty electrode is in contact with a displayed electrode by adhesive with conducting gap components on the periphery of the empty electrode, which enables the empty electrode and the displayed electrode to have equipotential, and thus, an electrostatic effect is avoided.
Description
Technical field
The present invention relates to a kind of method and device that improves LCD vision shade, solving the shade phenomenon that viewing area and the non-equipotential of non-display area are caused, and because of electrostatic effect at ghost phenomena that non-display area produced.
Background technology
Display is the important interface that people and machine are linked up, in early days based on kinescope (CRT/Cathode Ray Tube) display, but along with science and technology is constantly progressive, various display techniques are born like the mushrooms after rain, recently because LCD (LCD/LiquidCrystal Display) has compact, low power consumption, radiationless danger, flat square shows and the stable advantage such as do not glimmer of image, replace cathode-ray tube display (CRT) gradually, become the market mainstream.
The ultimate principle of LCD (LCD), main is to utilize up and down the layer glass substrate to clamp liquid crystal, this layer glass substrate is not smooth in the side of contact liquid crystal, but jagged groove is arranged, the fundamental purpose of this groove is that the long bar-shaped liquid crystal molecule of hope is arranged along groove, so that Liquid Crystal Molecules Alignment is neat, because if be smooth plane, the arrangement of liquid crystal molecule just can be irregular, cause the scattering of light, form the phenomenon of light leak, on this glass substrate, plate the tin indium oxide (ITO/indiumtin oxide) that one deck can conduct electricity again, thereby make glass substrate can be used as electrode; In the liquid crystal characteristic, the most important thing is the dielectric coefficient and the refraction coefficient of liquid crystal; Dielectric coefficient is the characteristic that liquid crystal is turned to by electric field effects decision liquid crystal molecule, and refraction coefficient influences the important parameter of light course when then being the light penetration liquid crystal.LCD is exactly these characteristics by liquid crystal, suitably utilizes up and down the voltage difference between the layer glass substrate to control the rotation of liquid crystal molecule, and then the direct of travel that influences light is to form different GTGs, as the instrument of show image.
Yet, address defective to be solved under LCD but exists at present:
One, because the tin indium oxide thicknesses of layers on the glass substrate can change the refractive index and the penetrance of LCD (LCD), cause the difference of LCD refractive index between viewing area and non-display area, its result is for when LCD is failure to actuate, the color of viewing area is darker, influences attractive in appearance.
Two, under the low temperature drying environment, easily give birth to static object when contacting when LCD with hand or with other, it is residual and cause and produce voltage difference between glass substrate easily to produce static, make the liquid crystal action of this non-display area, darken, produce the static line, this is so-called electrostatic effect.
Known, No. 5897186 United States Patent (USP) " utilizes the display device of outer electrode to prevent that error picture from producing ", as shown in Figure 1, be that show electrode (pixel-definingelectrodes) scope at LCD is extended and become outer electrode, thickness is identical with show electrode, and provide a specified external voltage, the so error picture that can avoid LCD to be caused because of electric crosstalk.Its shortcoming is, needs to supply with rated voltage and gives outer electrode (extending) by inner show electrode, and its prevention effect of the stability influence of its given voltage, and this rated voltage there is no clear and definite device as grounding function.
Again, No. 5283677 United States Patent (USP) " is provided with the LCD of access area " between petiolarea, as shown in Figure 2, be at LCD edge and flexible circuit board (FPC) joint, add plumbous matter pattern area, utilize being connected of plumbous matter pattern area and earth terminal, electrostatic energy is derived by earth terminal, avoid static or The noise, as the color shadow effect that produces at the LCD edge.Its shortcoming is that this technology can be applicable on the TAB processing procedure, but then can increase its complicacy on the COG processing procedure, and this technology also can't be got rid of the static on LCD surface.
Summary of the invention
Fundamental purpose of the present invention is to solve above-mentioned defective, avoid the existence of defective, the present invention increases the ITO rete of non-display area simultaneously when design ITO electrode, the ITO that makes viewing area and non-display area have same thickness equally produces to avoid viewing area vision shade.
Another purpose of the present invention is empty electrode glue that sticks together of tool conducting function around it is contacted with show electrode, makes sky electrode and show electrode equipotential, to avoid electrostatic effect.
For realizing above-mentioned purpose, method and the device that improves LCD vision shade of the present invention, mainly be on the non-display area of LCD, to add the sky electrode, this sky electrode is tin indium oxide (ITO/indium tin oxide) rete, make viewing area on the LCD (defining pixel) and non-display area have identical tin indium oxide (ITO/indium tinoxide) thickness, make the viewing area identical with the refractive index and the penetrance of non-display area, to avoid when LCD is failure to actuate, produce vision shade phenomenon on the viewing area; In addition, empty electrode glue that sticks together of tool conductive gap around it is contacted with show electrode, make sky electrode and show electrode equipotential, to avoid electrostatic effect.
Description of drawings
Relevant detailed description of the present invention and technology contents, existing conjunction with figs. is described as follows.
Fig. 1 is the synoptic diagram of existing structure.
Fig. 2 is the synoptic diagram of another existing structure.
Fig. 3 is a LCD synoptic diagram of the present invention.
Fig. 4 is a LCD vertical view of the present invention.
Embodiment
Referring to Fig. 3,4, be LCD synoptic diagram of the present invention and LCD vertical view of the present invention.As shown in the figure: method and the device that improves LCD vision shade of the present invention, mainly be on the non-display area of LCD, to add the sky electrode, this sky electrode is tin indium oxide (ITO/indium tin oxide) rete, make viewing area on the LCD (defining pixel) have identical tin indium oxide thickness with non-display area, make the viewing area identical with the refractive index and the penetrance of non-display area, to avoid when LCD is failure to actuate, produce vision shade phenomenon on the viewing area; In addition, empty electrode glue that sticks together of tool conducting function around it is contacted with show electrode, make sky electrode and show electrode equipotential, to avoid electrostatic effect.
The present invention includes according to the above-mentioned device that method adopted: a liquid crystal (LiquidCrystal) layer 1, one upper substrate 2 and an infrabasal plate 3 are formed.
Above-mentioned upper substrate 2 and infrabasal plate 3, be glass material, and the configuration of borrowing the backlight (not shown), and on this upper substrate 2 and infrabasal plate 3, define viewing area 31 and non-display area 32, at this moment, 31 plate the tin indium oxide (ITO/indium tin oxide) that one deck can conduct electricity in the viewing area, thereby this upper substrate 2 and infrabasal plate 3 can be conducted electricity, become show electrode, on non-display area 32, add the sky electrode again, this sky electrode is tin indium oxide (ITO/indium tin oxide) rete, make (definingpixel) 31 of viewing area on the LCD and non-display area 32 have identical tin indium oxide (ITO/indium tin oxide) thickness, make viewing area 31 identical,, produce vision shade phenomenon on the viewing area 31 to avoid when LCD is failure to actuate with the refractive index and the penetrance of non-display area 32.
In addition, by the glue 4 that sticks together of tool conducting function above-mentioned show electrode is contacted with empty electrode, thereby reach show electrode and empty electrode equipotential, to avoid electrostatic effect.
In sum, the present invention has following advantage as can be known:
One, do not need to add other material as earth terminal as No. 5283677 United States Patent (USP) " is provided with the LCD of access area " between petiolarea shown in.
Two, do not need as shown in No. 5897186 United States Patent (USP) " utilizes the display device of outer electrode to prevent that error picture from producing ", externally electrode tip (Dummy district) is supplied with extra fixed voltage.
Three, the present invention is applicable on COF and the COG technology processing procedure.
Four, can reduce the static electricity prevention and curing Design of device.
The above only is preferred embodiment of the present invention, can not limit scope of the invention process with it, and promptly the equalization of being done according to the present patent application claim generally changes and modifies, and all should still belong in the scope that patent of the present invention contains.
Claims (4)
1. method of improving LCD vision shade, be to utilize two substrates (2), (3) to clamp liquid crystal, and on this two substrate (2), (3), define viewing area (31) and non-display area (32), plate the tin indium oxide that one deck can conduct electricity in this viewing area (31) again, thereby this two substrate (2), (3) can be conducted electricity, become show electrode, it is characterized in that:
Above-mentioned non-display area (32) has been provided with electrode, and this sky electrode is the tin indium oxide rete, and the tin indium oxide that viewing area (31) and non-display area (32) have same thickness on the LCD.
2. the method for improving LCD vision shade according to claim 1 is characterized in that, comprises that also the glue that sticks together of a tool conducting function should contact with show electrode by the sky electrode.
3. device that improves LCD vision shade is to utilize two substrates (2), (3) clamping liquid crystal, and defines viewing area (31) and non-display area (32) on this two substrate (2), (3), it is characterized in that, comprising:
One show electrode is for being plated on the tin indium oxide on the above-mentioned viewing area (31);
One empty electrode, for being plated on the tin indium oxide on the above-mentioned non-display area (32), and this tin indium oxide has identical thickness with tin indium oxide on viewing area (31).
4. the device that improves LCD vision shade according to claim 3 is characterized in that, comprises that also the glue that sticks together of a tool conducting function should contact with show electrode by the sky electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02159662 CN1271462C (en) | 2002-12-25 | 2002-12-25 | Method for improving visual shadow of liquid-crystal displaying device and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02159662 CN1271462C (en) | 2002-12-25 | 2002-12-25 | Method for improving visual shadow of liquid-crystal displaying device and device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1510483A CN1510483A (en) | 2004-07-07 |
| CN1271462C true CN1271462C (en) | 2006-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 02159662 Expired - Fee Related CN1271462C (en) | 2002-12-25 | 2002-12-25 | Method for improving visual shadow of liquid-crystal displaying device and device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11204337B2 (en) | 2018-06-04 | 2021-12-21 | Bruker Scientific Llc | Separation of ions according to ion mobility with enhanced resolving power for mass spectrometric analysis |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201004130Y (en) * | 2007-01-01 | 2008-01-09 | 中山微视显示器有限公司 | A capacitance touch screen |
| CN110554538A (en) * | 2019-09-30 | 2019-12-10 | 广西天山电子股份有限公司 | Negative display liquid crystal display screen |
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2002
- 2002-12-25 CN CN 02159662 patent/CN1271462C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11204337B2 (en) | 2018-06-04 | 2021-12-21 | Bruker Scientific Llc | Separation of ions according to ion mobility with enhanced resolving power for mass spectrometric analysis |
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| CN1510483A (en) | 2004-07-07 |
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Granted publication date: 20060823 Termination date: 20201225 |
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