CN1629682A - Fringing electric field switch type liquid crystal display device - Google Patents
Fringing electric field switch type liquid crystal display device Download PDFInfo
- Publication number
- CN1629682A CN1629682A CN 200310117568 CN200310117568A CN1629682A CN 1629682 A CN1629682 A CN 1629682A CN 200310117568 CN200310117568 CN 200310117568 CN 200310117568 A CN200310117568 A CN 200310117568A CN 1629682 A CN1629682 A CN 1629682A
- Authority
- CN
- China
- Prior art keywords
- layer
- transparency carrier
- liquid crystal
- electrode
- pixel electrode
- 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
Links
Images
Landscapes
- Liquid Crystal (AREA)
Abstract
An edge electric field switch LCD device includes a first and a second transparent base plates, a LC layer, multiple pixel electrodes, a public electrode and a color filter, among which, the first, second base plates are set oppositely, said LC layer is set between them, said pixel electrodes are set between said LC layer and the first base plate, said public electrode is set between said pixel electrode and the first transparent base plate, said filter is between said LC layer and the second base plate including a transparent base, a black matrix, a color layer and a transparent protection layer, said black layer and the color layer are set on the transparent base alternately, said protection layer covers the black and color layers with a first and second parts, the first part is opposite to the pixel electrode- a reflection one, the first part has many small holes.
Description
[technical field]
The invention relates to a kind of liquid crystal indicator, particularly about a kind of fringe field switching mode (Fringe Field Switching, FFS) liquid crystal indicator.
[background technology]
Itself does not possess the characteristics of luminescence liquid crystal in the liquid crystal indicator, and it is to adopt the electric field controls liquid crystal molecule to reverse and realize passing through or not passing through of light, thereby reaches the purpose of demonstration.In traditional liquid crystal indicator, surface in two substrate of glass forms electrode, applies voltage to form the electric field that the control liquid crystal molecule reverses, and this electrode is a transparent material, and the electrode of two substrate of glass is oppositely arranged, thereby forms and the perpendicular electric field of substrate surface.Because liquid crystal molecule has electrically, therefore under the control of this electric field, liquid crystal molecular orientation will be perpendicular to substrate surface, but because the influence of interaction force between liquid crystal molecule and physical force such as gravity, make that the orientation of liquid crystal molecule can not be fully perpendicular to substrate surface, and the angle of inclination of each liquid crystal molecule is not quite similar, thereby, when the observer observes from different perspectives, will observe different display effects, this is the visual angle defective of liquid crystal indicator.
Plane internal switch (In-Plane Switching, IPS) the type liquid crystal indicator is to place pixel electrode and public electrode on the same substrate and be spaced, when applying voltage, electric field change the becoming electric field that is parallel to orientation substrate perpendicular to orientation substrate of liquid crystal will be controlled in traditional liquid crystal indicator, under the control of this electric field, liquid crystal molecule need only rotate in surface level, thereby enlarges the visual angle of liquid crystal indicator.But, plane internal switch type liquid crystal indicator can't make liquid crystal fully reverse because its electric field space distribution density is lower, thereby abundant printing opacity, for improving the electric field space distribution density, then need improve driving voltage or increase electrode area, so the aperture opening ratio and the penetrance of plane internal switch type liquid crystal indicator are lower.
There are aperture opening ratio and the lower defective of penetrance for overcoming plane internal switch type liquid crystal indicator, a kind of fringe field switch type lcd device occurs.See also Fig. 1, it is the 6th of on November 4th, 2003 bulletin, 642, a kind of fringe field switch type lcd device that No. 985 United States Patent (USP) disclosed, this fringe field switch type lcd device is to use the penetrating type liquid crystal indicator of backlight arrangement, this liquid crystal indicator 10 comprises that two relative transparent lower substrate 1 and upper substrate 11, liquid crystal layers 20 are distributed between this infrabasal plate 1 and the upper substrate 11, and this liquid crystal layer 20 is arranged in order by a large amount of liquid crystal molecule 20a and formed.One public electrode 2 is arranged on this infrabasal plate 1, and a transparent insulating layer 3 covers on this public electrode 2, and a plurality of pixel electrodes 4 are arranged on this transparent insulating layer 3.Once alignment film 5 is arranged on these a plurality of pixel electrodes 4 and this transparent insulating layer 3.One colored filter 14 is arranged on upper substrate 11 inboards, and this colored filter 14 comprises a plurality of black matrix"s 12 and dyed layer 13, these dyed layer 13 tools red (R), blue (B), green (G) three kinds of coloring units, and black matrix" 12 is distributed between three kinds of coloring units.(Indium Tin Oxide, ITO) layer 30 is arranged on this colored filter 14 near liquid crystal layer 20 1 sides to one tin indium oxide, and alignment film 15 on wherein also is set between this indium tin oxide layer 30 and the liquid crystal layer 20.
When this liquid crystal indicator 10 applies voltage, form electric field between pixel electrode 4 and the public electrode 2, a because transparent insulating layer that alternating floor thickness is very little 3 between pixel electrode 4 and the public electrode 2, therefore Electric Field Distribution is more intensive, switching technique relatively planar, the invalid part of this electric field is littler, so these fringe field switch type lcd device 10 aperture opening ratios and penetrance are higher.
But, backlight arrangement is the main energy-dissipating device of whole penetrating type fringe field switch type lcd device, usually its power consumption is that the entire liquid crystal display device power consumption is more than 50%, and place the stronger environment of ambient light when this penetrating type liquid crystal indicator, the brightness of liquid crystal indicator and contrast must reduce, therefore the display quality of this penetrating type liquid crystal indicator is affected by the external environment bigger, for brightness and the contrast that keeps liquid crystal indicator, then must improve the power of backlight arrangement, its power consumption also increases thereupon.
[summary of the invention]
In order to overcome the high defective of prior art fringe field switch type lcd device power consumption, the invention provides a kind of energy-conservation and can guarantee the fringe field switch type lcd device of good display quality.
It is a kind of energy-conservation and can guarantee the fringe field switch type lcd device of good display quality that the present invention also provides.
It is a kind of energy-conservation and can guarantee the fringe field switch type lcd device of good display quality that the present invention provides again.
The technical scheme that technical solution problem of the present invention is adopted is: a kind of fringe field switch type lcd device is provided; it comprises first transparency carrier; second transparency carrier; one liquid crystal layer; a plurality of pixel electrodes; one public electrode and a colored filter; first transparency carrier and second transparency carrier are oppositely arranged; this liquid crystal layer is between this first transparency carrier and second transparency carrier; these a plurality of pixel electrodes are between this liquid crystal layer and this first transparency carrier; this public electrode is between this pixel electrode and this first transparency carrier; this colored filter is between this liquid crystal layer and second transparency carrier; this colored filter comprises a transparent substrates; one black matrix"; one dyed layer and a protective clear layer; this black matrix" and this dyed layer are arranged alternately on this transparent substrates; this protective clear layer covers on this black matrix" and the dyed layer; this dyed layer comprises first and second portion; the first of this dyed layer is corresponding with the pixel electrode position; this pixel electrode is a reflective electrode, and the first of this dyed layer is provided with a plurality of apertures.
The present invention solves the technical scheme that another technical matters adopts: a kind of fringe field switch type lcd device is provided; it comprises first transparency carrier; second transparency carrier; one liquid crystal layer; a plurality of pixel electrodes; one public electrode and a colored filter; first transparency carrier and second transparency carrier are oppositely arranged; this liquid crystal layer is between this first transparency carrier and second transparency carrier; these a plurality of pixel electrodes are between this liquid crystal layer and this first transparency carrier; this public electrode is between this pixel electrode and this first transparency carrier; this colored filter is between this liquid crystal layer and second transparency carrier; this colored filter comprises a transparent substrates; one black matrix"; one dyed layer and a protective clear layer; this black matrix" and this dyed layer are arranged alternately on this transparent substrates; this protective clear layer covers on this black matrix" and the dyed layer; this dyed layer comprises first and second portion; the first of this dyed layer is corresponding with the pixel electrode position; this pixel electrode is a reflective electrode, and the second portion thickness of this dyed layer is the twice of first's thickness.
The present invention solves the technical scheme that another technical matters adopts: a kind of fringe field switch type lcd device is provided; it comprises first transparency carrier; second transparency carrier; one liquid crystal layer; a plurality of pixel electrodes; one public electrode and a colored filter; first transparency carrier and second transparency carrier are oppositely arranged; this liquid crystal layer is between this first transparency carrier and second transparency carrier; these a plurality of pixel electrodes are between this liquid crystal layer and this first transparency carrier; this public electrode is between this pixel electrode and this first transparency carrier; this colored filter is between this liquid crystal layer and second transparency carrier; this colored filter comprises a transparent substrates; one black matrix"; one dyed layer and a protective clear layer; this black matrix" and this dyed layer are arranged alternately on this transparent substrates; this protective clear layer covers on this black matrix" and the dyed layer; this dyed layer comprises first and second portion; the first of this dyed layer is corresponding with the pixel electrode position; this pixel electrode is a reflective electrode, and the painted concentration of the second portion of this dyed layer is the twice that first colour saturation.
Compared with prior art, the advantage of fringe field switch type lcd device of the present invention is: pixel electrode adopts reflective contact metal or metal electrode to cover a reflectance coating and makes, it can be used as a reflective electrode with ambient light reflected back liquid crystal layer, realizes reflection function.This public electrode is made by transparent indium tin oxide or indium zinc oxide, and it is a penetration electrode, and the light that backlight arrangement sends penetrates this public electrode incident liquid crystal layer, realizes penetrating function.Therefore this liquid crystal indicator uses its display brightness and contrast all higher in the stronger or weak environment of ambient light, ambient light need be passed the first of colored filter for twice because backlight light once passes the colored filter second portion, therefore in this colored filter first a plurality of apertures are set, or second portion thickness is first's thickness twice, or the painted concentration of second portion is the painted concentration twice of first, the light that backlight arrangement is sent obtains identical color saturation with the emergent ray of ambient light, guarantees its good display quality.This liquid crystal indicator can effectively utilize ambient light by this reflective pixel electrode, and power that therefore can corresponding reduction backlight arrangement is to reach purpose of energy saving.
[description of drawings]
Fig. 1 is the synoptic diagram of prior art penetrating type fringe field switch type lcd device.
Fig. 2 is the structural representation of fringe field switch type lcd device first embodiment of the present invention.
Fig. 3 is the structural representation of colored filter first embodiment of fringe field switch type lcd device of the present invention.
Fig. 4 is the structural representation of colored filter second embodiment of fringe field switch type lcd device of the present invention.
Fig. 5 is the structural representation of colored filter the 3rd embodiment of fringe field switch type lcd device of the present invention.
Fig. 6 is the structural representation of fringe field switch type lcd device second embodiment of the present invention.
[embodiment]
Please consulting Fig. 2 and Fig. 3 together, is respectively the structural representation of fringe field switch type lcd device first embodiment of the present invention and colored filter thereof.This liquid crystal indicator 100 is fringe field switching mode Transflective liquid crystal indicators, it comprises that two relative first transparency carrier 101 and second transparency carrier 110, liquid crystal layers 120 are distributed between this first transparency carrier 101 and second transparency carrier 110, and this liquid crystal layer 120 is arranged in order by a large amount of liquid crystal molecule 120a and formed.One transparent common electrode 102 is arranged on this first transparency carrier substrate 101, this transparent common electrode 102 can make light penetrate, material is tin indium oxide or indium zinc oxide (Indium Zinc Oxide, IZO), one transparent insulating layer 103 covers on this transparent common electrode 102, a plurality of pixel electrodes 104 are arranged on this transparent insulating layer 103, and this pixel electrode 104 can reflect external environment light, and material is argent, metallic aluminium or alloy material.Once alignment film 105 is arranged on these a plurality of pixel electrodes 104 and this transparent insulating layer 103, and a colored filter 114 is arranged on second transparency carrier, 110 inboards.One insulation course 130 is arranged on this colored filter 114 near liquid crystal layer 120 1 sides, and alignment film 150 on wherein also is set between this insulation course 130 and the liquid crystal layer 120.
This colored filter 114 comprises a transparent substrates 111, a black matrix" 112, a dyed layer 113 and a protective clear layer 116.This transparency carrier 111 is the carriers as said modules.This dyed layer 113 has red (R), blue (B), green (G) three kinds of coloring units, recurring rule arrange these three kinds of coloring units on this transparency carrier 111 with respectively by Red light, stop that the light of other wavelength passes through.This black matrix" 112 is arranged between this three coloring units; its effect is that blocking is by the light between three coloring units; prevent leakage of light and stop coloured material to mix; protective clear layer 116 covers on black matrix" 112 and the dyed layer 113, is used to protect this black matrix" 112 and dyed layer 113.These colored filter 114 each coloring units are divided into A of first and second portion B by itself and electrode corresponding relation, wherein corresponding with pixel electrode 104 part is the A of first, is second portion B corresponding to the part of the public electrode 102 not relative with pixel electrode 104.A plurality of apertures 117 are set on the A of this first, and this aperture 117 is non-coloured parts, is filled by protective clear layer 116, and the coloured part area of the A of this first equates with aperture 117 areas.
Because this pixel electrode 104 is made by the argent with reflection function, metallic aluminium or alloy material, can serve as a reflective electrode with ambient light reflected back liquid crystal layer 120, realize reflection function, this public electrode 102 is made by transparent indium tin oxide or indium zinc oxide, it is a penetration electrode, the light that backlight arrangement (figure does not show) sends penetrates this public electrode 102 incident liquid crystal layers 120, realization penetrates function, so this liquid crystal indicator 100 uses its display brightness and contrast all higher in the stronger or weak environment of ambient light; This liquid crystal indicator 100 can effectively utilize ambient light by this reflective pixel electrode 104, and power that therefore can corresponding reduction backlight arrangement is to reach purpose of energy saving; During ambient light incident, it penetrates colored filter 114 A of first, through pixel electrode 104 reflections, penetrate outgoing behind the A of first once more, backlight light is through public electrode 102, penetrate outgoing behind the colored filter 114 second portion B, therefore ambient light is backlight light twices through the light path of colored filter 114 through the light path of colored filter 114, because the A of first is provided with aperture 117, coloured part 113 areas of the A of this first are half of the A of this first area, therefore ambient light penetrate the painted total amount of coloured part 113 and backlight light penetration coloured part 113 painted total amount about equally, all emergent raies can obtain roughly the same color saturation; Therefore this liquid crystal indicator 100 display brightness and contrast is all higher and color saturations all emergent raies are roughly the same are to guarantee its good display quality.
Seeing also Fig. 4, is the colorful filter structure synoptic diagram of second embodiment of the invention.This colored filter 114 " comprise equally a transparent substrates 111 ', a black matrix" 112 ', a dyed layer a 113 ' and protective clear layer 116 ', it is distinguished with colored filter 114 and is: the second portion B ' thickness in each coloring units is the twice of first's A ' thickness.When liquid crystal indicator (figure do not show) was realized showing, ambient light needed twice through the A ' of first, and backlight light only once passes through second portion B ', so the painted total amount that all emergent raies penetrate coloured part about equally, and its color saturation is also consistent.
Seeing also Fig. 5, is the colorful filter structure synoptic diagram of third embodiment of the invention." thickness equates this colored filter 114 " second portion B ", make outgoing light color saturation degree unanimity, and its second portion B " painted concentration is the A of first " the twice of colour saturation, and its structure is more simple for thickness and the A of first.
Seeing also Fig. 6, is the structural representation of fringe field switch type lcd device second embodiment of the present invention.This liquid crystal indicator 200 is identical with liquid crystal indicator 100 structures, and the difference of itself and liquid crystal indicator 100 is: pixel electrode 204 comprises an electrode layer 205 and a reflectance coating 206, and this reflectance coating 206 covers on this electrode layer 205.When this liquid crystal indicator 200 is realized showing, this pixel electrode 204 and the intensive fringe field of public electrode 202 common generations, liquid crystal molecule 220a in this liquid crystal layer 220 is deflected, and reflectance coating 206 is realized reflection function with ambient light reflected back liquid crystal layer 220.Equally, in this liquid crystal indicator 200, a plurality of apertures 217 are set on the A of first of colored filter 214.Certainly, colored filter 214 second portion thickness also can be first's thickness twices, or the painted concentration of second portion is the twice that first colour saturation.
Claims (10)
1. fringe field switch type lcd device; it comprises first transparency carrier; second transparency carrier; one liquid crystal layer; a plurality of pixel electrodes; one public electrode and a colored filter; first transparency carrier and second transparency carrier are oppositely arranged; this liquid crystal layer is between this first transparency carrier and second transparency carrier; these a plurality of pixel electrodes are between this liquid crystal layer and this first transparency carrier; this public electrode is between this pixel electrode and this first transparency carrier; this colored filter is between this liquid crystal layer and second transparency carrier; this colored filter comprises a transparent substrates; one black matrix"; one dyed layer and a protective clear layer; this black matrix" and this dyed layer are arranged alternately on this transparent substrates; this protective clear layer covers on this black matrix" and the dyed layer; this dyed layer comprises first and second portion; the first of this dyed layer is corresponding with the pixel electrode position; it is characterized in that: this pixel electrode is a reflective electrode, and the first of this dyed layer is provided with a plurality of apertures.
2. fringe field switch type lcd device as claimed in claim 1 is characterized in that: this pixel electrode material is an argent.
3. fringe field switch type lcd device as claimed in claim 1 is characterized in that: this pixel electrode material is a metallic aluminium.
4. fringe field switch type lcd device as claimed in claim 1 is characterized in that: this pixel electrode material is an alloy material.
5. fringe field switch type lcd device as claimed in claim 1 is characterized in that: this pixel electrode comprises an electrode layer and a reflectance coating, and this reflectance coating covers on this electrode layer.
6. fringe field switch type lcd device as claimed in claim 1 is characterized in that: be provided with a transparent insulating layer between this public electrode and the pixel electrode.
7. fringe field switch type lcd device as claimed in claim 1 is characterized in that: be provided with an alignment film between this liquid crystal layer and the pixel electrode.
8. fringe field switch type lcd device as claimed in claim 1 is characterized in that: be provided with an alignment film between this liquid crystal layer and the colored filter.
9. fringe field switch type lcd device; it comprises first transparency carrier; second transparency carrier; one liquid crystal layer; a plurality of pixel electrodes; one public electrode and a colored filter; first transparency carrier and second transparency carrier are oppositely arranged; this liquid crystal layer is between this first transparency carrier and second transparency carrier; these a plurality of pixel electrodes are between this liquid crystal layer and this first transparency carrier; this public electrode is between this pixel electrode and this first transparency carrier; this colored filter is between this liquid crystal layer and second transparency carrier; this colored filter comprises a transparent substrates; one black matrix"; one dyed layer and a protective clear layer; this black matrix" and this dyed layer are arranged alternately on this transparent substrates; this protective clear layer covers on this black matrix" and the dyed layer; this dyed layer comprises first and second portion; the first of this dyed layer is corresponding with the pixel electrode position; it is characterized in that: this pixel electrode is a reflective electrode, and the second portion thickness of this dyed layer is first's thickness twice.
10. fringe field switch type lcd device; it comprises first transparency carrier; second transparency carrier; one liquid crystal layer; a plurality of pixel electrodes; one public electrode and a colored filter; first transparency carrier and second transparency carrier are oppositely arranged; this liquid crystal layer is between this first transparency carrier and second transparency carrier; these a plurality of pixel electrodes are between this liquid crystal layer and this first transparency carrier; this public electrode is between this pixel electrode and this first transparency carrier; this colored filter is between this liquid crystal layer and second transparency carrier; this colored filter comprises a transparent substrates; one black matrix"; one dyed layer and a protective clear layer; this black matrix" and this dyed layer are arranged alternately on this transparent substrates; this protective clear layer covers on this black matrix" and the dyed layer; this dyed layer comprises first and second portion; the first of this dyed layer is corresponding with the pixel electrode position; it is characterized in that: this pixel electrode is a reflective electrode, and the painted concentration of the second portion of this dyed layer is the twice that first colour saturation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310117568 CN1629682A (en) | 2003-12-19 | 2003-12-19 | Fringing electric field switch type liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310117568 CN1629682A (en) | 2003-12-19 | 2003-12-19 | Fringing electric field switch type liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1629682A true CN1629682A (en) | 2005-06-22 |
Family
ID=34843624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310117568 Pending CN1629682A (en) | 2003-12-19 | 2003-12-19 | Fringing electric field switch type liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1629682A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101046573B (en) * | 2006-03-27 | 2010-07-21 | Nec液晶技术株式会社 | Liquid crystal panel, liquid crystal display device and terminal device |
| CN103728792A (en) * | 2012-10-15 | 2014-04-16 | Nlt科技股份有限公司 | In-plane switching mode liquid crystal display device |
-
2003
- 2003-12-19 CN CN 200310117568 patent/CN1629682A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101046573B (en) * | 2006-03-27 | 2010-07-21 | Nec液晶技术株式会社 | Liquid crystal panel, liquid crystal display device and terminal device |
| CN103728792A (en) * | 2012-10-15 | 2014-04-16 | Nlt科技股份有限公司 | In-plane switching mode liquid crystal display device |
| CN103728792B (en) * | 2012-10-15 | 2017-12-15 | Nlt科技股份有限公司 | The liquid crystal display device of in-plane-switching mode |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204576024U (en) | A kind of color membrane substrates and display panels | |
| CN105204261B (en) | A kind of display panel and its driving method, display device | |
| CN101165564B (en) | Semi-transmission semi-reflection liquid crystal display device | |
| CN103185980A (en) | Liquid crystal display panel | |
| CN113376901A (en) | Display panel and electronic device | |
| CN214751220U (en) | Display panel and display device | |
| CN101329475B (en) | Display device | |
| CN101571652B (en) | Liquid crystal display screen | |
| CN102466914B (en) | Smectic state liquid crystal color display | |
| CN108803112A (en) | Two-sided liquid crystal display panel, display with double faces | |
| CN1627146A (en) | Edge electric field switch type liquid crystal display unit | |
| CN108776404A (en) | Two-sided liquid crystal display panel, display with double faces | |
| CN101329480B (en) | Liquid crystal display device | |
| CN1629682A (en) | Fringing electric field switch type liquid crystal display device | |
| CN2727803Y (en) | Fringe field switching type liquid crystal display device | |
| CN2727804Y (en) | Fringe field switching type liquid crystal display device | |
| CN1749821A (en) | Semi-penetrating semi-reflecting type liquid crystal displaying device | |
| CN215642156U (en) | Display panel and display device | |
| CN101887196A (en) | Liquid crystal display panel | |
| CN2800327Y (en) | Liquid crystal display device | |
| CN1655021A (en) | Liquid crystal display device | |
| CN2689281Y (en) | Planarly rotary mode liquid-crystal displaying devices | |
| CN2699329Y (en) | Liquid crystal display | |
| CN100376991C (en) | Liquid crystal display device | |
| CN1704811A (en) | Liquid crystal display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |