CN100517006C - Semi-transmissive semi-reflective liquid crystal display device - Google Patents
Semi-transmissive semi-reflective liquid crystal display device Download PDFInfo
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- CN100517006C CN100517006C CNB2004100776485A CN200410077648A CN100517006C CN 100517006 C CN100517006 C CN 100517006C CN B2004100776485 A CNB2004100776485 A CN B2004100776485A CN 200410077648 A CN200410077648 A CN 200410077648A CN 100517006 C CN100517006 C CN 100517006C
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Abstract
The invention discloses a semi-penetration and semi-reflective LCD, which comprises the following parts: upper base plate, lower base plate, liquid crystal layer and semi-penetration and semi-reflective layer, wherein the liquid crystal layer is set between the upper and lower base plate; the semi-penetration and semi-reflective layer is set on the lower base plate, which contains translucent part and reflective part; the nanometer reflective particle is set in the reflective part.
Description
[technical field]
The invention relates to a kind of liquid crystal indicator, particularly about a kind of semi-penetrating semi-reflecting type liquid crystal displaying device.
[background technology]
Liquid crystal indicator is because of it has characteristics such as low diathermaneity, compact and power consumption are low, therefore uses day by day extensively, and along with the ripe and innovation of correlation technique, its kind is also various day by day.
According to the difference of light source that liquid crystal indicator utilizes, can be divided into penetration liquid crystal display device and reflective LCD device.Penetration liquid crystal display device need be provided with a backlight at the display panels back side and realize that image shows, still, the power consumption of backlight accounts for half of whole penetration liquid crystal display device power consumption, so the power consumption of penetration liquid crystal display device is bigger.Reflective LCD device can solve the big problem of penetration liquid crystal display device power consumption, but is difficult to realize that image shows, the problem more than semi-penetrating semi-reflecting type liquid crystal displaying device can solve under the faint environment of light.
See also Fig. 1, a kind of semi-penetrating semi-reflecting type liquid crystal displaying device 1 of prior art comprises that two relative transparent lower substrate 12 and upper substrate 11, liquid crystal layers 13 are sandwiched between this infrabasal plate 12 and the upper substrate 11.This infrabasal plate 12 is provided with thin film transistor (TFT) (Thin Film Transistor, TFT) 14, this thin film transistor (TFT) 14 is provided with a semi-penetration semi-reflective layer 18, and this semi-penetration semi-reflective layer 18 comprises penetrating region 181 and echo area 182, and this penetrating region 181 and echo area 182 are crisscross arranged.Be provided with alignment film 15 near liquid crystal layer 13 1 sides on this semi-penetration semi-reflective layer 18, close these upper substrate 11 1 sides of this liquid crystal layer are provided with alignment film 16 on, and this time alignment film 15 reaches goes up the initial orientation that alignment film 16 is used for the liquid crystal molecule of this liquid crystal layer 13.Should go up between alignment film 16 and this upper substrate 11 and be provided with a colored filter 17, this colored filter 17 comprises three kinds of colors of red, green, blue.
This penetrating region 181 adopts transparent materials to make, as tin indium oxide (Indium TinOxide, ITO), indium zinc oxide (Indium Zinc Oxide, IZO) or silicon dioxide (SiO
2).This echo area 182 adopts the material with high reflectance to make, as silver or aluminium.The light that sends when backlight (figure does not show) is incident upon this penetrating region 181 by this infrabasal plate 12, and light can pass through this penetrating region 181, and finally is used for showing; When extraneous light is incident upon this echo area 182 by this upper substrate 11, light will be reflected, and realize showing.This colored filter 17 can be by the primaries of red, green, blue, and stops the light of other wavelength, realizes colored the demonstration.But,, make this semi-penetrating semi-reflecting type liquid crystal displaying device 1 have the low problem of display brightness because these echo area 182 material reflectance are low.
[summary of the invention]
In order to overcome the low problem of liquid crystal indicator brightness in the prior art, the invention provides a kind of semi-penetrating semi-reflecting type liquid crystal displaying device with good display brightness.
The technical scheme that technical solution problem of the present invention is adopted is: a kind of semi-penetrating semi-reflecting type liquid crystal displaying device is provided, it comprises a upper substrate, one infrabasal plate, a liquid crystal layer between this upper substrate and this infrabasal plate, one is arranged at the semi-penetration semi-reflective layer on this infrabasal plate.This semi-penetration semi-reflective layer contacts with this infrabasal plate, this semi-penetration semi-reflective layer comprises penetrating region and echo area, this penetrating region and this echo area are at same one deck, and be crisscross arranged, this penetrating region is made by transparent material, this echo area comprises light transmission part and reflecting part, and the inside of this reflecting part is provided with the nanometer reflective particle, and the area of this reflecting part is 40%～60% of this penetrating region area.
Compared to existing technology, the invention has the beneficial effects as follows: the semi-penetration semi-reflective layer of this semi-penetrating semi-reflecting type liquid crystal displaying device comprises penetrating region and echo area, this penetrating region and this echo area are at same one deck, and be crisscross arranged, this penetrating region is made by transparent material, wherein this echo area comprises light transmission part and reflecting part, and the inside of this reflecting part is provided with the nanometer reflective particle.When ambient light was incident upon this echo area, this nanometer reflective particle can make this semi-penetrating semi-reflecting type liquid crystal displaying device have higher display brightness evenly with ambient light reflected back liquid crystal layer.The area ratio of this light transmission part and this reflecting part can change, to reach best display effect.
This semi-penetrating semi-reflecting type liquid crystal displaying device comprises that further one is arranged on colored filter and a plurality of thin film transistor (TFT) that is arranged on this upper substrate near liquid crystal layer one side on this semi-penetration semi-reflective layer.
This semi-penetrating semi-reflecting type liquid crystal displaying device further comprise be arranged at substrate one side one on Polarizer, be arranged on the Polarizer of this infrabasal plate one side, this upper substrate and this are gone up between the Polarizer and between this infrabasal plate and this time Polarizer and are respectively arranged with polarizer.
The colored filter of this semi-penetrating semi-reflecting type liquid crystal displaying device be arranged on this semi-penetration semi-reflective layer on, thin film transistor (TFT) is arranged on this upper substrate near liquid crystal layer one side, therefore ambient light can be passed through this colored filter twice, has color saturation preferably during demonstration.By being set, polarizer can remedy phase delay, enhancing contrast ratio.
[description of drawings]
Fig. 1 is a kind of diagrammatic cross-section of prior art semi-penetrating semi-reflecting type liquid crystal displaying device.
Fig. 2 is the structural profile synoptic diagram of semi-penetrating semi-reflecting type liquid crystal displaying device first embodiment of the present invention.
Fig. 3 is the semi-penetration semi-reflective layer structural representation of semi-penetrating semi-reflecting type liquid crystal displaying device first embodiment of the present invention.
Fig. 4 is the structural profile synoptic diagram of semi-penetrating semi-reflecting type liquid crystal displaying device second embodiment of the present invention.
[embodiment]
Seeing also Fig. 2, is the structural representation of semi-penetrating semi-reflecting type liquid crystal displaying device first embodiment of the present invention.Semi-penetrating semi-reflecting type liquid crystal displaying device 2 of the present invention comprise a upper substrate 21, one and the infrabasal plate 22, that is oppositely arranged of upper substrate 21 be positioned at the liquid crystal layer 23 of 21,22 of this two substrates, this liquid crystal layer 23 comprises a plurality of eurymeric liquid crystal molecules (indicating).Be provided with a semi-penetration semi-reflective layer 28 near liquid crystal layer 23 1 sides on this infrabasal plate 22, this semi-penetration semi-reflective layer 28 is provided with a colored filter 27, and this colored filter 27 is provided with alignment film 25.Be provided with thin film transistor (TFT) 24 near liquid crystal layer 23 1 sides on this upper substrate 21, this thin film transistor (TFT) 24 is used to drive this semi-penetrating semi-reflecting type liquid crystal displaying device 2 and shows that this thin film transistor (TFT) 24 is provided with alignment film 26 on.The arranged outside of this upper substrate 21 has polaroid 291 on, and the arranged outside of this infrabasal plate 22 has polaroid 292.
See also Fig. 3, this semi-penetration semi-reflective layer 28 comprises penetrating region 281 and echo area 282, and this penetrating region 281 and echo area 282 are crisscross arranged.Wherein this penetrating region 281 is made for transparent material, as tin indium oxide, indium zinc oxide or silicon dioxide.
The thickness of this echo area 282 is that 100nm is to 500nm, it comprises light transmission part 2822 and reflecting part 2823, these 2823 inside, reflecting part are provided with a plurality of nanometer reflective particles 2821, this nanometer reflective particle 2821 is made for silver or the contour reflecting material of aluminium, these nanometer reflective particle 2821 sizes arrive 100nm for 2nm, and its optimum value is that 5nm is to 20nm.The light that sends when backlight (figure does not show) is incident upon this penetrating region 281 by this infrabasal plate 22, and light can pass through this penetrating region 281, and the penetrance of its light can reach 90% to 99%, and finally is used for showing; When extraneous light was incident upon this echo area 282 by this upper substrate 21, light will be realized showing by nanometer reflective particle 2821 reflections of these 2823 inside, reflecting part.This nanometer reflective particle 2821 can be adjusted the density of its size and distribution according to the requirement that shows, improves this semi-penetrating semi-reflecting type liquid crystal displaying device 2 display brightness.The area of this reflecting part 2823 is 40% to 60% of these penetrating region 281 areas, and its optimum value is 45% to 55%, and the ratio of this area can change according to the requirement that shows.
This colored filter 27 can be by the primaries of red, green, blue, and stops the light of other wavelength, realizes colored the demonstration.This colored filter 27 is arranged on infrabasal plate 22 1 sides, ambient light is incident upon this reflecting part 2823 and by this this liquid crystal layer 23 of nanometer reflective particle 2821 reflected backs, in the whole process, light passes through this colored filter 27 twice, can improve the color saturation of whole this semi-penetrating semi-reflecting type liquid crystal displaying device 2.
Seeing also Fig. 4, is the structural representation of semi-penetrating semi-reflecting type liquid crystal displaying device second embodiment of the present invention.Semi-penetrating semi-reflecting type liquid crystal displaying device 3 of the present invention comprise a upper substrate 31, one and the infrabasal plate 32, that is oppositely arranged of upper substrate 31 be positioned at the liquid crystal layer 33 of 31,32 of this two substrates, this liquid crystal layer 33 comprises a plurality of eurymeric liquid crystal molecules (indicating).Be provided with a semi-penetration semi-reflective layer 38 near liquid crystal layer 33 1 sides on this infrabasal plate 32, this semi-penetration semi-reflective layer 38 is provided with a colored filter 37, and this colored filter 37 is provided with alignment film 35.Be provided with thin film transistor (TFT) 34 near liquid crystal layer 33 1 sides on this upper substrate 31, this thin film transistor (TFT) 34 is used to drive this semi-penetrating semi-reflecting type liquid crystal displaying device 3 and shows that this thin film transistor (TFT) 34 is provided with alignment film 36 on.The arranged outside of this upper substrate 31 has polaroid 391 on, and the arranged outside of this infrabasal plate 32 has polaroid 392.
This semi-penetration semi-reflective layer 38 comprises penetrating region 381 and echo area 382, and this penetrating region 381 and echo area 382 are crisscross arranged.Wherein this penetrating region 381 is made for transparent material, as tin indium oxide, indium zinc oxide or silicon dioxide.The thickness of this echo area 382 be 100nm to 500nm, it comprises light transmission part 3822 and reflecting part 3823, these 3823 inside, reflecting part are provided with a plurality of nanometer reflective particles 3821.
The semi-penetrating semi-reflecting type liquid crystal displaying device 3 of present embodiment is the improvement to the semi-penetrating semi-reflecting type liquid crystal displaying device 2 of first embodiment, its improved place is: further be provided with polarizer 411,412 between this upper substrate 31 and the last Polarizer 391, further be provided with polarizer 421,422 between this infrabasal plate 32 and the following Polarizer 392.
Wherein this polarizer 411,421 is a wave plate of four minutes, and this polarizer 412,422 is a wave plate of two minutes.This polarizer can compensate the phase delay of this semi-penetrating semi-reflecting type liquid crystal displaying device 3, reduces the low problem of contrast that causes because of refractive index difference.
The position of this polarizer 411,412 can be changed mutually, and same, polarizer 421,422 positions can also be changed mutually, and certainly, this polarizer can also adopt other the assembly with effect of phase compensation.
The opposite side that should go up Polarizer 391 further is provided with an anti-high light layer 43 and an anti-reflecting layer 44, and this anti-high light layer 43 and anti-reflecting layer 44 can see through more rays and reduce the generation of high light, make when the observer watches more comfortable.
The semi-penetration semi-reflective layer of this semi-penetrating semi-reflecting type liquid crystal displaying device comprises penetrating region and echo area, wherein this echo area comprises light transmission part and reflecting part, the inside of this reflecting part is provided with the nanometer reflective particle, improves this semi-penetrating semi-reflecting type liquid crystal displaying device and has higher display brightness.The area ratio of this light transmission part and this reflecting part can change, to reach best display effect.The colored filter of this semi-penetrating semi-reflecting type liquid crystal displaying device be arranged at this semi-penetration semi-reflective layer on, thin film transistor (TFT) is arranged at this upper substrate near liquid crystal layer one side, therefore ambient light can be passed through this colored filter twice, has color saturation preferably during demonstration.By being set, polarizer can remedy phase delay, enhancing contrast ratio.
Claims (11)
1. semi-penetrating semi-reflecting type liquid crystal displaying device, it comprises a upper substrate, one infrabasal plate, one liquid crystal layer between this upper substrate and this infrabasal plate, one is arranged at the semi-penetration semi-reflective layer on the infrabasal plate, this semi-penetration semi-reflective layer comprises penetrating region and echo area, this penetrating region and this echo area are at same one deck, and be crisscross arranged, it is characterized in that: this semi-penetration semi-reflective layer contacts with this infrabasal plate, this penetrating region is made by transparent material, this echo area comprises light transmission part and reflecting part, the inside of this reflecting part is provided with the nanometer reflective particle, the area of this reflecting part is 40%～60% of this penetrating region area, this semi-penetrating semi-reflecting type liquid crystal displaying device comprises that further one is arranged at the colored filter on this semi-penetration semi-reflective layer, and a plurality of thin film transistor (TFT)s that are arranged on this upper substrate.
2. semi-penetrating semi-reflecting type liquid crystal displaying device according to claim 1 is characterized in that: this nanometer reflective particle is silver or aluminium.
3. semi-penetrating semi-reflecting type liquid crystal displaying device according to claim 1 is characterized in that: the size of this nanometer reflective particle is that 2nm is to 100nm.
4. semi-penetrating semi-reflecting type liquid crystal displaying device according to claim 3 is characterized in that: the size of this nanometer reflective particle is that 5nm is to 20nm.
5. semi-penetrating semi-reflecting type liquid crystal displaying device according to claim 1 is characterized in that: the thickness of this echo area is that 100nm is to 500nm.
6. semi-penetrating semi-reflecting type liquid crystal displaying device according to claim 1 is characterized in that: a side of this upper substrate is provided with Polarizer on, and a side of this infrabasal plate is provided with Polarizer.
7. semi-penetrating semi-reflecting type liquid crystal displaying device according to claim 6 is characterized in that: this upper substrate and this are gone up between the Polarizer and between this infrabasal plate and this time Polarizer and are respectively arranged with polarizer.
8. semi-penetrating semi-reflecting type liquid crystal displaying device according to claim 7 is characterized in that: this polarizer is quarter-wave plate and 1/2nd wave plates.
9. semi-penetrating semi-reflecting type liquid crystal displaying device according to claim 6 is characterized in that: be disposed with an anti-high light layer and an anti-reflecting layer on this on the Polarizer.
10. semi-penetrating semi-reflecting type liquid crystal displaying device according to claim 1 is characterized in that: the material of this penetrating region is tin indium oxide or silicon dioxide.
11. semi-penetrating semi-reflecting type liquid crystal displaying device according to claim 1 is characterized in that: the area of this reflecting part is 45% to 55% of this penetrating region area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100776485A CN100517006C (en) | 2004-12-16 | 2004-12-16 | Semi-transmissive semi-reflective liquid crystal display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100776485A CN100517006C (en) | 2004-12-16 | 2004-12-16 | Semi-transmissive semi-reflective liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1790124A CN1790124A (en) | 2006-06-21 |
| CN100517006C true CN100517006C (en) | 2009-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100776485A Expired - Fee Related CN100517006C (en) | 2004-12-16 | 2004-12-16 | Semi-transmissive semi-reflective liquid crystal display device |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1246931A (en) * | 1997-12-04 | 2000-03-08 | 平板展示(Fpd)有限公司 | Display device |
| US6295109B1 (en) * | 1997-12-26 | 2001-09-25 | Sharp Kabushiki Kaisha | LCD with plurality of pixels having reflective and transmissive regions |
| CN1439928A (en) * | 2002-01-31 | 2003-09-03 | 卡西欧计算机株式会社 | Liquid-crystal display and production thereof |
| US6621543B2 (en) * | 2000-01-06 | 2003-09-16 | Lg.Philips Lcd Co., Ltd. | Transflective liquid crystal display device |
| US6654087B2 (en) * | 2000-02-10 | 2003-11-25 | L.G. Philips Lcd Co., Ltd. | Transflective liquid crystal display device |
| CN1503009A (en) * | 2002-11-20 | 2004-06-09 | 力特光电科技股份有限公司 | Glaring-proof film |
| JP2004212773A (en) * | 2003-01-07 | 2004-07-29 | Mitsubishi Electric Corp | Liquid crystal display and colloidal solution |
| CN1523436A (en) * | 2003-08-08 | 2004-08-25 | 友达光电股份有限公司 | Colorful light filter production method and semi-transmissive liquid crystal display device |
| JP2004258527A (en) * | 2003-02-27 | 2004-09-16 | Casio Comput Co Ltd | Liquid crystal display |
-
2004
- 2004-12-16 CN CNB2004100776485A patent/CN100517006C/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1246931A (en) * | 1997-12-04 | 2000-03-08 | 平板展示(Fpd)有限公司 | Display device |
| US6295109B1 (en) * | 1997-12-26 | 2001-09-25 | Sharp Kabushiki Kaisha | LCD with plurality of pixels having reflective and transmissive regions |
| US6621543B2 (en) * | 2000-01-06 | 2003-09-16 | Lg.Philips Lcd Co., Ltd. | Transflective liquid crystal display device |
| US6654087B2 (en) * | 2000-02-10 | 2003-11-25 | L.G. Philips Lcd Co., Ltd. | Transflective liquid crystal display device |
| CN1439928A (en) * | 2002-01-31 | 2003-09-03 | 卡西欧计算机株式会社 | Liquid-crystal display and production thereof |
| CN1503009A (en) * | 2002-11-20 | 2004-06-09 | 力特光电科技股份有限公司 | Glaring-proof film |
| JP2004212773A (en) * | 2003-01-07 | 2004-07-29 | Mitsubishi Electric Corp | Liquid crystal display and colloidal solution |
| JP2004258527A (en) * | 2003-02-27 | 2004-09-16 | Casio Comput Co Ltd | Liquid crystal display |
| CN1523436A (en) * | 2003-08-08 | 2004-08-25 | 友达光电股份有限公司 | Colorful light filter production method and semi-transmissive liquid crystal display device |
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| Publication number | Publication date |
|---|---|
| CN1790124A (en) | 2006-06-21 |
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