CN102736334A - Semi-transparent wide-view-angle liquid crystal display and manufacturing method thereof - Google Patents
Semi-transparent wide-view-angle liquid crystal display and manufacturing method thereof Download PDFInfo
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- CN102736334A CN102736334A CN2012102309167A CN201210230916A CN102736334A CN 102736334 A CN102736334 A CN 102736334A CN 2012102309167 A CN2012102309167 A CN 2012102309167A CN 201210230916 A CN201210230916 A CN 201210230916A CN 102736334 A CN102736334 A CN 102736334A
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Abstract
The invention relates to a liquid crystal display technology, and in particular discloses a semi-transparent wide-view-angle liquid crystal display and a manufacturing method thereof. A grid layer, a silicon island layer, a pixel electrode layer, a source and drain layer and a public electrode layer are arranged at the inner side of a lower glass substrate of the display; the public electrode layer is arranged on the outmost surface of the inner side of the lower glass substrate; and the public electrode layer is a reflection type public electrode layer with a reflection capability. The method comprises the following steps of: manufacturing the grid layer at the inner side of the lower glass substrate; manufacturing the silicon island layer; manufacturing the pixel electrode layer; manufacturing the source and drain layer; and manufacturing the public electrode layer, wherein the public electrode layer is a reflection type public electrode layer with a reflection capability; and the reflection type public electrode layer is arranged on the outmost surface of the inner side of the lower glass substrate. The public electrode layer of the novel liquid crystal display is a reflection type public electrode layer with a reflection capability, so that the contrast ratio of a semitransparent product under full-transparent displaying can be increased.
Description
Technical field
The present invention relates to lcd technology, relate in particular to a kind of half and pass through wide-angle liquid crystal display and preparation method thereof.
Background technology
(Thin Film Transistor has increasing use during TFT) LCD is lived in modern times to thin film transistor (TFT), for example mobile phone display screen, Note Book display screen, MP3/MP4 display screen, GPS display screen, LCD-TV display screen etc.Along with the development of TFT-LCD technology, people are also increasingly high to its performance demands, not only when indoor light is softer, require it to have good visuality, and also need it to have good visibility under the strong out of doors sunshine.
Common full-transparency type TFT LCD can not satisfy above-mentioned requirements; When using out of doors; Owing to the strong reflection of sunlight, need to improve the surface brightness of TFT LCD, perhaps make one deck and reduce catoptrical material on the surface of TFT display screen; Just can have good visuality, to reach the requirement of using out of doors.As a rule; Improving surface brightness can only be through improving the brightness of TFT LCD backlight; Yet the raising of TFT liquid crystal display device backlight lightness has but increased the overall power of device; Power system to device is had higher requirement, such as mobile phone, must use high-octane battery could satisfy its request for utilization.
So, how could under the situation that does not increase device power consumption, make the TFT LCD satisfy when using under the indoor and outdoor sunlight and all have good visuality, become the emphasis problem that these those skilled in the art pay close attention to.People have invented total reflection and semi-transparent semi TFT LCD in practice; And in total reflection and semi-transparent semi TFT LCD; Its gordian technique is exactly how to promote reflectivity and spread reflection visual angle; In other words, to avoid the single angle direct reflection of smooth flat exactly.Therefore, the TFT LCD of total reflection or semi-transflective reflective type is become the inevitable requirement in market.
Referring to Fig. 1, the synoptic diagram of wide-angle liquid crystal display is passed through in expression existing half.This wide-angle liquid crystal display comprises top glass substrate 1, lower glass substrate 8, and filling liquid crystal 3 between the two; The inboard of top glass substrate 1 is provided with black matrix" 12 and ink lay 2; Grid layer 10, canopy utmost point insulation course 7, silicon island layer (semiconductor layer) 11, pixel electricity rubbish layer 6, dielectric film protective seam (scheming not shown), source-drain electrode layer 9, source-drain electrode insulation course 5 and common electrode layer 4 are set on the lower glass substrate 8; Common electrode layer 4 wherein adopts ITO to make; And ITO is as transparent electrode layer; Can't play reflecting effect, the contrast under full impregnated shows is not ideal enough.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of half to pass through wide-angle liquid crystal display and preparation method thereof, can improve half and pass through the contrast of product under full impregnated shows.
For solving above technical matters; Technical scheme provided by the invention is that a kind of half passes through wide-angle liquid crystal display, comprises top glass substrate and lower glass substrate; Filling liquid crystal between the two; The inboard of said lower glass substrate is provided with grid layer, silicon island layer, pixel electrode layer, source-drain electrode layer and common electrode layer, and the inboard that said common electrode layer is positioned at said lower glass substrate is the surface, and said common electrode layer is the reflection-type common electrode layer with reflection potential.
More excellent ground, said reflection-type common electrode layer is a double common electrical rubbish layer of doing metallic reflector.
More excellent ground, said reflection-type common electrode layer comprises an ITO common electrode layer and a metallic reflector, said metallic reflector is positioned at the outside surface of said ITO common electrode layer.
More excellent ground, said metallic reflector is an aluminium lamination.
More excellent ground, the inboard non-valid pixel viewing area of said top glass substrate is provided with black matrix", and the inboard valid pixel of said top glass substrate viewing area is provided with ink lay
On this basis; The present invention provides a kind of half to pass through the wide-angle liquid crystal display method for making; Should partly pass through wide-angle liquid crystal display and comprise top glass substrate and lower glass substrate, filling liquid crystal may further comprise the steps: make canopy utmost point layer in the inboard of lower glass substrate between the two; Make the silicon island layer; Make pixel electrode layer; Make the source-drain electrode layer; And the making common electrode layer, this common electrode layer is the reflection-type common electrical rubbish layer with reflection potential, the inboard that this reflection-type common electrode layer is positioned at said lower glass substrate is the surface.
More excellent ground is through making the double common electrode layer of doing metallic reflector, to obtain this reflection-type common electrode layer.
More excellent ground makes metallic reflector at the outside surface of ITO common electrode layer, to obtain this reflection-type common electrode layer.
More excellent ground makes the aluminium reflection horizon through the appearance in the ITO common electrode layer, to obtain the reflection-type common electrode layer.
More excellent ground, further comprising the steps of: the inboard non-valid pixel viewing area in top glass substrate is provided with black matrix"; And, in the inboard valid pixel of top glass substrate viewing area ink lay is set.
Compared with prior art, the common electrode layer in the Novel LCD provided by the invention is the reflection-type common electrode layer with reflection potential, thus not only have the effect of wide viewing angle full impregnated, and take into account the product demand that the consumer half-and-half passes through effect.It more traditional half passes through effect, has better full impregnated effect, has solved half and has passed through product not high problem of contrast under full impregnated shows.
Description of drawings
Fig. 1 is the existing wide-angle liquid crystal display synoptic diagram that partly passes through;
Fig. 2 is the synoptic diagram that the present invention half passes through wide-angle liquid crystal display embodiment one;
Fig. 3 is the synoptic diagram that the present invention half passes through wide-angle liquid crystal display embodiment two;
Fig. 4 is that the present invention half passes through the process diagram of wide-angle liquid crystal display method for making.
Among Fig. 1～Fig. 4, relevant Reference numeral is following:
1, top glass substrate; 2, ink lay; 3, liquid crystal layer; 4, common electrode layer; 41; The double common electrical rubbish layer of doing metallic reflector; 5, source-drain electrode insulation course; 6, pixel electrode layer; 7, canopy utmost point insulation course; 8, lower glass substrate; 9, source-drain electrode layer; 10, canopy utmost point layer; 11, silicon island layer; 12, black matrix"; 13, metallic reflector.
Embodiment
Basic design of the present invention is that the public electrode of wide-angle liquid crystal display is the reflection-type public electrode that possesses reflection potential, improves half thus and passes through the contrast of product under full impregnated shows.
In order to make those skilled in the art understand technical scheme of the present invention better, the present invention is done further detailed description below in conjunction with accompanying drawing and specific embodiment.
Embodiment one
Referring to Fig. 2, expression the present invention half passes through the synoptic diagram of wide-angle liquid crystal display embodiment one.This embodiment is a kind of high planarization wide-angle liquid crystal display structure, and it comprises top glass substrate 1, lower glass substrate 8, and filling liquid crystal 3 between the two; The inboard of top glass substrate 1 is provided with black matrix" 12 (being positioned at non-valid pixel viewing area) and ink lay (being positioned at the valid pixel viewing area) 2; Canopy utmost point layer is set on the inboard of lower glass substrate 8 (is metal level; Like aluminium) 10, gate insulator 7, silicon island layer (semiconductor layer) 11, pixel electrode layer (being the ITO layer) 6, dielectric film protective seam (scheming not shown), source-drain electrode layer (being metal level) 9, source-drain electrode insulation course 5 and the double common electrode layer 41 of doing metallic reflector like aluminium.
In the present embodiment, what lower glass substrate 8 inboards were the most surperficial is the double common electrode layer 41 of doing metallic reflector, and it had both played the public electrode effect, plays the reflection horizon effect again.Because should partly pass through structure is metal level, has good reflecting effect, helps improving half and pass through the contrast of product under full impregnated shows; And traditional half pass through structure, and this layer adopts ITO to make, and ITO is as transparent electrode layer, thus can't play reflecting effect, so the contrast of full impregnated under showing lower (this belong to the industry problem partly thoroughly because of pattern is unusual all can be lower than the contrast of full impregnated).
Embodiment two
Referring to Fig. 3, expression the present invention half passes through the synoptic diagram of wide-angle liquid crystal display embodiment two.This embodiment two compares with embodiment one, and difference is on the common electrode layer 4 (for the ITO layer) metallic reflector (being preferably aluminium lamination) 13 to be set separately, rather than by the common electrode layer 4 double metallic reflectors of doing; Other is identical with embodiment one structure, repeats no more.
Among the above embodiment one, two, common electrode layer 4 through self or the metallic reflector that adds, can realize reflecting effect preferably respectively, passes through the contrast of product under full impregnated shows thereby help improving wide-angle liquid crystal display half.
Referring to Fig. 4, expression the present invention half passes through the process diagram of wide-angle liquid crystal display method for making.This process diagram relates to the making of element on the lower glass substrate, mainly may further comprise the steps: (1) makes canopy utmost point layer; (2) make the silicon island layer; (3) make the ITO pixel electrode layer; (4) make the source-drain electrode layer; (5) make the ITO common electrode layer; (6) on common electrode layer, make metal level (like aluminium), accomplish element manufacturing process on the lower glass substrate.Certainly, step (5) and step (6) also can be combined into a step, are about to common electrode layer and metal level and are integrated into one deck, repeat no more at this.
For top glass substrate, then the non-valid pixel of side viewing area is provided with black matrix" within it, and side valid pixel viewing area is provided with ink lay within it, accomplishes element manufacturing process on the lower glass substrate thus.
After element and lower glass substrate element complete on the lower glass substrate, top glass substrate and lower glass substrate are answered the packaging plastic encapsulation, and liquid crystal spatial accommodation filling liquid crystal therein, and accomplish step such as be electrically connected after, obtain wide-angle liquid crystal display.
Only be preferred implementation of the present invention below, should be pointed out that above-mentioned preferred implementation should not be regarded as limitation of the present invention, protection scope of the present invention should be as the criterion with claim institute restricted portion.For those skilled in the art, do not breaking away from the spirit and scope of the present invention, can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (10)
1. one and half pass through wide-angle liquid crystal display; Comprise top glass substrate and lower glass substrate; Filling liquid crystal between the two, the inboard of said lower glass substrate is provided with grid layer, silicon island layer, pixel electrode layer, source-drain electrode layer and common electrode layer, and the inboard that said common electrode layer is positioned at said lower glass substrate is the surface; It is characterized in that said common electrode layer is the reflection-type common electrical rubbish layer with reflection potential.
2. as claimed in claim 1 half passes through wide-angle liquid crystal display, it is characterized in that said reflection-type common electrode layer is the double common electrode layer of doing metallic reflector.
3. as claimed in claim 1 half passes through wide-angle liquid crystal display, it is characterized in that said reflection-type common electrode layer comprises an ITO common electrode layer and a metallic reflector, and said metallic reflector is positioned at the outside surface of said ITO common electrode layer.
4. as claimed in claim 3 half passes through wide-angle liquid crystal display, it is characterized in that said metallic reflector is an aluminium lamination.
5. as claimed in claim 1 half passes through wide-angle liquid crystal display, it is characterized in that the inboard non-valid pixel viewing area of said top glass substrate is provided with black matrix", and the inboard valid pixel of said top glass substrate viewing area is provided with ink lay.
6. one and half pass through the wide-angle liquid crystal display method for making, should partly pass through wide-angle liquid crystal display and comprise top glass substrate and lower glass substrate, filling liquid crystal is characterized in that between the two, may further comprise the steps: make canopy utmost point layer in the inboard of lower glass substrate; Make the silicon island layer; Make pixel electrode layer; Make the source-drain electrode layer; And the making common electrode layer, this common electrode layer is the reflection-type common electrode layer with reflection potential, the inboard that this reflection-type common electrode layer is positioned at said lower glass substrate is the surface.
7. as claimed in claim 6 a kind of half passes through the wide-angle liquid crystal display method for making, it is characterized in that, through making the double common electrical rubbish layer of doing metallic reflector, to obtain this reflection-type common electrode layer.
8. as claimed in claim 6 a kind of half passes through the wide-angle liquid crystal display method for making, it is characterized in that, makes metallic reflector at the outside surface of ITO common electrode layer, to obtain this reflection-type common electrode layer.
9. as claimed in claim 8 a kind of half passes through the wide-angle liquid crystal display method for making, it is characterized in that, makes the aluminium reflection horizon through the outside surface at ITO common electrical rubbish layer, to obtain this reflection-type common electrode layer.
10. as claimed in claim 8 a kind of half passes through the wide-angle liquid crystal display method for making, it is characterized in that further comprising the steps of: the inboard non-valid pixel viewing area in top glass substrate is provided with black matrix"; And, in the inboard valid pixel of top glass substrate viewing area ink lay is set.
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| CN2012102309167A CN102736334A (en) | 2012-07-04 | 2012-07-04 | Semi-transparent wide-view-angle liquid crystal display and manufacturing method thereof |
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| CN1869773A (en) * | 2005-05-25 | 2006-11-29 | 三洋爱普生映像元器件有限公司 | Liquid crystal device and electronic apparatus |
| CN1952740A (en) * | 2005-10-18 | 2007-04-25 | 株式会社半导体能源研究所 | Liquid crystal display device |
| CN101078841A (en) * | 2006-05-22 | 2007-11-28 | 三菱电机株式会社 | Liquid crystal display and method for manufacturing the same |
| CN102096250A (en) * | 2009-12-14 | 2011-06-15 | 乐金显示有限公司 | Method of fabricating liquid crystal display device |
| KR101053293B1 (en) * | 2004-06-16 | 2011-08-01 | 엘지디스플레이 주식회사 | Liquid crystal display device and manufacturing method thereof |
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- 2012-07-04 CN CN2012102309167A patent/CN102736334A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101053293B1 (en) * | 2004-06-16 | 2011-08-01 | 엘지디스플레이 주식회사 | Liquid crystal display device and manufacturing method thereof |
| CN1869773A (en) * | 2005-05-25 | 2006-11-29 | 三洋爱普生映像元器件有限公司 | Liquid crystal device and electronic apparatus |
| CN1952740A (en) * | 2005-10-18 | 2007-04-25 | 株式会社半导体能源研究所 | Liquid crystal display device |
| CN101078841A (en) * | 2006-05-22 | 2007-11-28 | 三菱电机株式会社 | Liquid crystal display and method for manufacturing the same |
| CN102096250A (en) * | 2009-12-14 | 2011-06-15 | 乐金显示有限公司 | Method of fabricating liquid crystal display device |
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Application publication date: 20121017 |