CN101576679B - Semi-transmitting semi-reflecting liquid crystal display panel and semi-transmitting semi-reflecting liquid crystal display - Google Patents
Semi-transmitting semi-reflecting liquid crystal display panel and semi-transmitting semi-reflecting liquid crystal display Download PDFInfo
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- CN101576679B CN101576679B CN2008100671138A CN200810067113A CN101576679B CN 101576679 B CN101576679 B CN 101576679B CN 2008100671138 A CN2008100671138 A CN 2008100671138A CN 200810067113 A CN200810067113 A CN 200810067113A CN 101576679 B CN101576679 B CN 101576679B
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Abstract
The invention relates to a semi-transmitting semi-reflecting liquid crystal display panel which comprises a first substrate, a second substrate and a liquid crystal layer clamped between the first substrate and the second substrate, wherein the first substrate comprises a plurality of single-color filtering units with different colors; the second substrate comprises a semi-transmitting semi-reflecting membrane arranged on one side close to the liquid crystal layer; the semi-transmitting semi-reflecting membrane comprises a plurality of reflecting areas and penetration areas corresponding to the single-color filtering units, and each reflecting area comprises a plurality of layers of overlapped single-color light reflecting layers with different colors. The invention also provides a semi-transmitting semi-reflecting liquid crystal display using the semi-transmitting semi-reflecting liquid crystal display panel.
Description
Technical field
The invention relates to a kind of half-transmitting and half-reflecting display panels and semi-transmission semi-reflection LCD.
Background technology
LCD mainly is divided into two kinds of reflective liquid-crystal display and transmissive type liquid crystal displays according to its light source.Reflective liquid-crystal display utilizes external light source to provide demonstration required light beam, this type of LCD can the amount of saving energy, but, in order to make full use of external beam and to adapt to various display environments, a kind of semi-transmission semi-reflection LCD that has reflective liquid-crystal display and transmissive type liquid crystal display advantage concurrently appears.And semi-transmission semi-reflection LCD generally all is that little reflecting plate is set in traditional transmissive liquid crystal display panel, and the material of this little reflecting plate is that metallic compound or its alloy (silver, aluminium) come ambient light is reflected, and shows to realize half-transparent half-reflection.
But this little reflecting plate is that metal material is made, because the characteristic of metal material, blue light is easily absorbed by metal material, makes reflection ray have the effect of inclined to one side Huang, thereby causes the color rendering of this half-transmitting and half-reflecting display panels relatively poor.
Summary of the invention
In order to solve the relatively poor problem of color rendering of prior art half-transmitting and half-reflecting display panels, be necessary to provide a kind of color rendering half-transmitting and half-reflecting display panels preferably.
For the relatively poor problem of the color rendering that solves the prior art semi-transmission semi-reflection LCD, be necessary to provide a kind of color rendering semi-transmission semi-reflection LCD preferably.
A kind of half-transmitting and half-reflecting display panels, it comprises one first substrate, one second substrate and is clamped in liquid crystal layer between this first substrate and second substrate, this first substrate comprises the monochromatic filter unit that a plurality of colors are different, this second substrate comprises a half transmitting half reflection film, this half-transmitting and half-reflecting film is arranged on it near this liquid crystal layer one side, it comprises a plurality of echo areas corresponding with each monochromatic filter unit and penetrating region, and this echo area comprises multilayer laminated setting and the different reflection of monochromatic light layer of color.
A kind of semi-transmission semi-reflection LCD, it comprises a half transmitting half-reflection liquid crystal display panel and a module backlight, this half-transmitting and half-reflecting display panels comprises one first substrate, one second substrate and be clamped in liquid crystal layer between this first substrate and second substrate, this first substrate comprises the monochromatic filter unit that a plurality of colors are different, this second substrate comprises a half transmitting half reflection film, this half-transmitting and half-reflecting film is arranged on it near this liquid crystal layer one side, it comprises a plurality of echo areas corresponding with each monochromatic filter unit and penetrating region, and this echo area comprises multilayer laminated setting and the different reflection of monochromatic light layer of color.
A kind of half-transmitting and half-reflecting display panels, it comprises one first substrate, one second substrate, a chromatic filter layer, a half transmitting half reflection film and a liquid crystal layer, this liquid crystal layer is clamped between this first substrate and second substrate, this chromatic filter layer is arranged between this liquid crystal layer and this first substrate, this half-transmitting and half-reflecting film is arranged between this second substrate and this liquid crystal layer, it comprises a plurality of echo areas, this echo area comprises the reflection of monochromatic light layer of multilayer laminated setting, and these a plurality of reflection of monochromatic light layers are the different monochromatic light of reflection colour respectively.
A kind of semi-transmission semi-reflection LCD, it comprises a half transmitting half-reflection liquid crystal display panel and a module backlight, this half-transmitting and half-reflecting display panels comprises one first substrate, one second substrate, one chromatic filter layer, an one half transmitting half reflection film and a liquid crystal layer, this liquid crystal layer is clamped between this first substrate and second substrate, this chromatic filter layer is arranged between this liquid crystal layer and this first substrate, this half-transmitting and half-reflecting film is arranged between this second substrate and this liquid crystal layer, it comprises a plurality of echo areas, this echo area comprises the reflection of monochromatic light layer of multilayer laminated setting, and these a plurality of reflection of monochromatic light layers are the different monochromatic light of reflection colour respectively.
Compared with prior art, the half-transmitting and half-reflecting film of half-transmitting and half-reflecting display panels of the present invention and its semi-transmission semi-reflection LCD reflects separately not homochromy monochromatic light by the monochromatic reflection horizon of different layers, and control each monochromatic reflectivity respectively, to keep the identical reflectivity of each monochromatic light, therefore the monochromatic light absorbance log difference of the reflectance coating of metal material to different colours can not appear, and cause the bigger problem of this half-transmitting and half-reflecting display panels aberration, thereby make that the color rendering of this this half-transmitting and half-reflecting display panels is better.
Description of drawings
Fig. 1 is the structural representation of semi-transmission semi-reflection LCD one better embodiment of the present invention.
Fig. 2 is the structural representation of half-transmitting and half-reflecting display panels shown in Figure 1.
Fig. 3 is the floor map of half-transmitting and half-reflecting display panels shown in Figure 2.
Fig. 4 is the structural representation in the reflectance coating district of half-transmitting and half-reflecting film shown in Figure 2.
Embodiment
Seeing also Fig. 1, is the structural representation of semi-transmission semi-reflection LCD first embodiment of the present invention.This semi-transmission semi-reflection LCD 20 comprises a half transmitting half-reflection liquid crystal display panel 200 and a module 201 backlight, and this module 201 backlight shows the required light that penetrates for this half-transmitting and half-reflecting display panels 200 provides.
Please consult Fig. 2 and Fig. 3 again, Fig. 2 is the structural representation of this half-transmitting and half-reflecting display panels 200, and Fig. 3 is the floor map of half-transmitting and half-reflecting display panels 200 shown in Figure 2.This half-transmitting and half-reflecting display panels 200 comprises one first substrate 210, one second substrate 220 and is clamped in liquid crystal layer 230 between this first, second substrate 210,220.
This first substrate 210 is provided with one first polaroid 211, a chromatic filter layer 212 and a common electrode layer 218.Wherein, this first polaroid 211 is arranged on this first substrate 210 away from these liquid crystal layer 230 1 sides, and stacked in regular turn this first substrate 210 that is arranged on of this chromatic filter layer 212 and this common electrode layer 218 is near these liquid crystal layer 230 1 sides.This chromatic filter layer 212 comprises a plurality of monochromatic filter units (not indicating) and a plurality of black matrix 216.These a plurality of monochromatic filter units are respectively a plurality of red filter units 213, a plurality of green filter unit 214 and a plurality of blue filter unit 215.These a plurality of red filter units 213, a plurality of green filter unit 214 and a plurality of blue filter unit 215 is staggered and by these a plurality of black matrixes 216 at interval.
This second substrate 220 is provided with one second polaroid 221, a pixel electrode layer 222, a passivation layer 224 and a half transmitting half reflection film 226.Wherein, this second polaroid 221 is arranged on this second substrate 220 away from these liquid crystal layer 230 1 sides.These pixel electrode layer 222 contiguous these second substrates 220 are provided with, and it comprises a plurality of pixel electrodes 223, these a plurality of pixel electrodes 223 interval and settings insulated from each other, each pixel electrode 223 corresponding monochromatic filter unit.This passivation layer 224 is arranged on this pixel electrode layer 223 near these liquid crystal layer 230 1 sides, and it comprises the projection 225 that a plurality of intervals are provided with, the subregion of each projection 225 corresponding monochromatic filter unit.This half-transmitting and half-reflecting film 226 is arranged on this passivation layer 224 near these liquid crystal layer 230 1 sides, it comprises a plurality of penetrating regions 227 and echo area 228, the corresponding monochromatic filter units in each penetrating region 227 and an echo area 228, and the projection 225 that 228 pairs of this echo areas should passivation layer 224 is provided with.
Please consulting Fig. 4 again, is the structural representation of the echo area 228 of half-transmitting and half-reflecting film 226 shown in Figure 2.This echo area 228 comprises a reflection to red light layer 301, a blu-ray reflection layer 302 and a green glow reflection horizon 303 of stacked setting in regular turn.Wherein, this reflection to red light layer 301 is arranged near these liquid crystal layer 230 1 sides.This reflection to red light layer 301 comprises a plurality of first optical film A and a plurality of second optical film B, folder one deck second optical film B between per two layer of first optical film A.This first optical film A and this second optical film B are transparent material and make, and thickness is monochromatic 1/4 times of monochromatic wavelength of its corresponding reflection, and setting λ monochromatic light is each monochromatic wavelength, λ
RedThe wavelength of corresponding expression ruddiness, promptly thickness is 1/4 λ
RedWherein, the number of plies of these a plurality of first optical film A is an odd-level, and the refractive index of this first optical film A is greater than the refractive index of this second optical film B.By the principle of reflection of multilayer film as can be known, the thickness of this first optical film A and this second optical film B is 1/4 λ
Red, then this reflection to red light layer 301 only has the strong reflection rate to ruddiness, and stacked this first optical film A is many more with this second optical film B, and it is high more that 301 pairs of ruddiness of this reflection to red light layer get reflectivity.In like manner as can be known, this blu-ray reflection layer 302 comprises a plurality of the 3rd optical film C and a plurality of the 4th optical film D, folder one deck the 4th optical film D between per two layer of the 3rd optical film C.The 3rd optical film C and the 4th optical film D are transparent material and make, and thickness is 1/4 λ
Blue(λ
BlueThe wavelength of corresponding expression blue light).Wherein, the number of plies of these a plurality of the 3rd optical film C is an odd-level, and the refractive index of the 3rd optical film C is greater than the refractive index of the 4th optical film D.This green glow reflection horizon 303 comprises a plurality of the 5th optical film E and a plurality of the 6th optical film F, folder one deck the 6th optical film F between per two layer of the 5th optical film E.The 5th optical film E and the 6th optical film F are transparent material and make, and thickness is 1/4 λ
Green(λ
GreenThe wavelength of corresponding expression green glow).Wherein, the number of plies of these a plurality of the 5th optical film E is an odd-level, and the refractive index of the 5th optical film E is greater than the refractive index of the 6th optical film F.
Behind this half-transmitting and half-reflecting display panels 200 of ambient light incident, through this chromatic filter layer 212, become red light, green light and blue light respectively, then this red light, green light and blue light are injected the echo area 228 of this half-transmitting and half-reflecting film 226 through this liquid crystal layer 230; This red light is in this this liquid crystal layer 230 of reflection to red light layer 301 reflected back; In like manner as can be known, this blue light is from this this liquid crystal layer 230 of blu-ray reflection layer 302 reflected back; This green light is from this this liquid crystal layer 230 of reflection to red light layer 303 reflected back; Again mix to penetrate this half-transmitting and half-reflecting display panels 200 and show.
Compared with prior art, the half-transmitting and half-reflecting display panels 200 of semi-transmission semi-reflection LCD 20 of the present invention utilizes half-transmitting and half-reflecting film 226 reflect ambient light to show, because this half-transmitting and half-reflecting film 226 is shown with reflect ambient light by the principle that the multilayer optical film-stack increases reflectivity, because this reflection to red light layer 301, blu-ray reflection layer 302 is relevant by the number of plies of its stacked optical film to the reflectivity of the light of its corresponding wavelength with green glow reflection horizon 303, stacked is many more, reflectivity is good more, can control reflection of light rate of all kinds by the number of plies of this optical film of control, therefore the problem of aberration can not occur the light reflection of certain color is occurred inadequately, thereby the color rendering of this half-transmitting and half-reflecting display panels 200 is better.
The structure of semi-transmission semi-reflection LCD second embodiment of the present invention and the structure of this semi-transmission semi-reflection LCD 20 are basic identical, they are different be in: the echo area structure of the structure of the echo area of its half-transmitting and half-reflecting film and half-transmitting and half-reflecting film is different.This echo area comprises a blu-ray reflection layer, a green glow reflection horizon and a reflection to red light layer of stacked setting, wherein, and the contiguous liquid crystal layer setting of this blu-ray reflection layer.
But, the invention is not restricted to above-mentioned embodiment, the optical film of this half-transmitting and half-reflecting film can change according to the color of this monochrome filter unit, even increase a kind of Yellow filter unit, then the optical film of this half-transmitting and half-reflecting film can corresponding increase can get final product the optical film that gold-tinted carries out total reflection.
Claims (10)
1. half-transmitting and half-reflecting display panels, it comprises one first substrate, one second substrate and is clamped in liquid crystal layer between this first substrate and second substrate, this first substrate comprises the monochromatic filter unit that a plurality of colors are different, this second substrate comprises a half transmitting half reflection film, this half-transmitting and half-reflecting film is arranged on it near this liquid crystal layer one side, it comprises a plurality of echo areas corresponding with each monochromatic filter unit and penetrating region, it is characterized in that: this echo area comprises multilayer laminated setting and the different reflection of monochromatic light layer of color.
2. half-transmitting and half-reflecting display panels as claimed in claim 1, it is characterized in that: each reflection of monochromatic light layer all is that a plurality of transparent optical film-stack form, the thickness of these a plurality of transparent optical retes is corresponding with this monochromatic wavelength respectively, and is 1/4 times of this monochromatic wavelength.
3. half-transmitting and half-reflecting display panels as claimed in claim 2, it is characterized in that: these a plurality of monochromatic filter units are respectively red filter unit, green filter unit and blue filter unit, corresponding reflection to red light layer, blu-ray reflection layer and the green glow reflection horizon of being provided with respectively with it of this reflection of monochromatic light layer.
4. half-transmitting and half-reflecting display panels as claimed in claim 3, it is characterized in that: this reflection to red light layer comprises a plurality of first optical films and is disposed on a plurality of second optical films between these a plurality of first optical films that the refractive index of this first optical film is greater than the refractive index of this second optical film.
5. half-transmitting and half-reflecting display panels as claimed in claim 3, it is characterized in that: this blu-ray reflection layer comprises a plurality of the 3rd optical films and is disposed on a plurality of the 4th optical films between these a plurality of the 3rd optical films that the refractive index of the 3rd optical film is greater than the refractive index of the 4th optical film.
6. half-transmitting and half-reflecting display panels as claimed in claim 3, it is characterized in that: this green glow reflection horizon comprises a plurality of the 5th optical films and is disposed on a plurality of the 6th optical films between these a plurality of the 5th optical films that the refractive index of the 5th optical film is greater than the refractive index of the 6th optical film.
7. half-transmitting and half-reflecting display panels as claimed in claim 1 is characterized in that: this second substrate further comprises a passivation layer, and this passivation layer is arranged between this second substrate and this half-transmitting and half-reflecting film.
8. semi-transmission semi-reflection LCD, it comprises a half transmitting half-reflection liquid crystal display panel and a module backlight, it is characterized in that: this half-transmitting and half-reflecting display panels is any described display panels in the aforesaid right requirement 1 to 7.
9. half-transmitting and half-reflecting display panels, it comprises: one first substrate, one second substrate, a chromatic filter layer, a half transmitting half reflection film and a liquid crystal layer, this liquid crystal layer is held between this first substrate and second substrate, this chromatic filter layer is arranged between this liquid crystal layer and this first substrate, this half-transmitting and half-reflecting film is arranged between this second substrate and this liquid crystal layer, it comprises a plurality of echo areas, it is characterized in that: this echo area comprises the multilayer laminated reflection of monochromatic light layer of establishing, and this multilayer reflection of monochromatic light layer is the different monochromatic light of reflection colour respectively.
10. semi-transmission semi-reflection LCD, it comprises a half transmitting half-reflection liquid crystal display panel and a module backlight, this half-transmitting and half-reflecting display panels, it comprises: one first substrate, one second substrate, one chromatic filter layer, an one half transmitting half reflection film and a liquid crystal layer, this liquid crystal layer is held between this first substrate and second substrate, this chromatic filter layer is arranged between this liquid crystal layer and this first substrate, this half-transmitting and half-reflecting film is arranged between this second substrate and this liquid crystal layer, it comprises a plurality of echo areas, it is characterized in that: this echo area comprises the multilayer laminated reflection of monochromatic light layer of establishing, and this multilayer reflection of monochromatic light layer is the different monochromatic light of reflection colour respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100671138A CN101576679B (en) | 2008-05-09 | 2008-05-09 | Semi-transmitting semi-reflecting liquid crystal display panel and semi-transmitting semi-reflecting liquid crystal display |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100671138A CN101576679B (en) | 2008-05-09 | 2008-05-09 | Semi-transmitting semi-reflecting liquid crystal display panel and semi-transmitting semi-reflecting liquid crystal display |
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| CN101576679A CN101576679A (en) | 2009-11-11 |
| CN101576679B true CN101576679B (en) | 2011-02-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101261339B1 (en) * | 2009-12-21 | 2013-05-07 | 엘지디스플레이 주식회사 | Liquid Crystal Display Device |
| KR102534107B1 (en) * | 2016-03-24 | 2023-05-19 | 삼성디스플레이 주식회사 | Display device |
| US11378726B2 (en) | 2019-01-23 | 2022-07-05 | Boe Technology Group Co., Ltd. | Filter structure, filter layer and display panel |
| CN111796452A (en) | 2020-07-08 | 2020-10-20 | Tcl华星光电技术有限公司 | Liquid crystal display panel |
| CN113900300B (en) * | 2021-09-08 | 2023-09-19 | 北京信息科技大学 | Liquid crystal display panel and display device |
| CN114942542B (en) * | 2022-05-19 | 2024-02-20 | Tcl华星光电技术有限公司 | Display device |
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