CN1308748C - Double-faced LCD - Google Patents
Double-faced LCD Download PDFInfo
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- CN1308748C CN1308748C CNB031478514A CN03147851A CN1308748C CN 1308748 C CN1308748 C CN 1308748C CN B031478514 A CNB031478514 A CN B031478514A CN 03147851 A CN03147851 A CN 03147851A CN 1308748 C CN1308748 C CN 1308748C
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- crystal display
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- type lcd
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Abstract
The present invention provides a double-faced liquid crystal display which is made of three base plates and comprises a first reflecting liquid crystal display and a second reflecting liquid crystal display. The three base plates are respectively a first base plate, a second base plate and a third base plate, wherein the first base plate has a first face and a second face; a first reflection layer and a first liquid crystal layer are orderly arranged on the first face of the first base plate, the second base plate and a polarizing plate to form the first reflecting liquid crystal display; a second reflection layer, a second liquid crystal layer, the third base plate and a second polarizing plate are orderly arranged on the second face of the first base plate to form the second reflecting liquid crystal display.
Description
Technical field
The present invention relates to a kind of structure of LCD, particularly relate to a kind of double side liquid crystal display that constitutes by three plate bases.
Background technology
Along with the development of display technique, electronic installation needs two display screens to come video data sometimes.For example, folding-type electronic device such as mobile phone or laptop computer have a display screen on the one side at housing when folding, and the display screen that on the another side of housing, has another general operation to use when opening.Usually these two display screens are two display screens of (back to back) back-to-back, can adopt two groups of display panels to make.Two groups of display panels need backlight and liquid crystal panel separately, and therefore single face LCD that can be originally on thickness is thick.
Yet the volume of electronic installation is toward the miniaturization development now, and thickness also is toward the slimming development.How to allow double side liquid crystal display have less thickness, be one of problem of design double side liquid crystal display required solution.
Summary of the invention
The object of the present invention is to provide a kind of about constitute the structure of double side liquid crystal display with three plate bases.
The object of the present invention is achieved like this, and a kind of two plane type LCD that is made of three plate bases promptly is provided, and comprises first reflective liquid-crystal display and second reflective liquid-crystal display.Three plate bases are respectively first substrate, second substrate and the 3rd substrate.First substrate has one first and one second.On first surface of first base, first reflection horizon, first liquid crystal layer, second substrate and first Polarizer are set in regular turn, constitute first reflective liquid-crystal display.On second of first substrate, second reflection horizon, second liquid crystal layer, the 3rd substrate and second Polarizer are set in regular turn, constitute second reflective liquid-crystal display.
Description of drawings
Fig. 1 is in the first embodiment of the present invention, the synoptic diagram of double side liquid crystal display;
Fig. 2 is in the second embodiment of the present invention, the synoptic diagram of double side liquid crystal display;
Fig. 3 is in the third embodiment of the present invention, and double side liquid crystal display is made up of two colorful film transistor liquid crystal display (TFT-LCD)s;
Fig. 4 is in the fourth embodiment of the present invention, and double side liquid crystal display is made up of with a black and white Thin Film Transistor-LCD a colorful film transistor liquid crystal display (TFT-LCD);
Fig. 5 is in the fifth embodiment of the present invention, and double side liquid crystal display is made up of with a colored STN Super TN or colored twisted nematic liquid crystal display a colorful film transistor liquid crystal display (TFT-LCD);
Fig. 6 is in the sixth embodiment of the present invention, and double side liquid crystal display is made up of with a black and white STN Super TN or twisted nematic liquid crystal display a colorful film transistor liquid crystal display (TFT-LCD);
Fig. 7 A to Fig. 7 E is in the seventh embodiment of the present invention, the position view of the arrangement mode of three plate bases, liquid crystal injecting port and flexible circuit board;
Fig. 8 A to Fig. 8 E is in the eighth embodiment of the present invention, the position view of the arrangement mode of three plate bases, liquid crystal injecting port and flexible circuit board.
Embodiment
The present invention is about the structure of double side liquid crystal display.Make double side liquid crystal display with three plate bases, the double side liquid crystal display of thinner thickness can be provided.
With reference to figure 1, be the synoptic diagram of double side liquid crystal display in the first embodiment of the present invention.First liquid crystal layer 202 is sandwiched between first substrate 10 and second substrate 20, constitutes first reflective liquid-crystal display.Second liquid crystal layer 302 is sandwiched between first substrate 10 and the 3rd substrate 30, constitutes second LCD.Light source 102 is preferably a cathode fluorescent tube or LED, is placed in a side of double side liquid crystal display.The light that light source 102 is emitted becomes the light source of first reflective liquid-crystal display and second LCD via the guiding of catoptron 104, first light guide plate 204 and second light guide plate 304.
Fig. 2 is the synoptic diagram of double side liquid crystal display in the second embodiment of the present invention.Double side liquid crystal display among Fig. 2 and Fig. 1's is similar, and difference is in the set-up mode in light source.First light source 106 is placed in first reflective liquid-crystal display, one side.The light that first light source 106 is emitted becomes the light source of first reflective liquid-crystal display via first reflex housing 108 and 204 guidings of first light guide plate.Secondary light source 110 is placed in second reflective liquid-crystal display, one side.The light that secondary light source 110 is emitted becomes the light source of second reflective liquid-crystal display via second reflex housing 112 and 304 guidings of second light guide plate.
LCD has multiple structure can be selected with the need, for example black and white or colored display, the brilliant liquid crystal display (TFT-LCD) of thin-film electro, twisted nematic liquid crystal display (TN-LCD) and STN LCD (STN-LCD) etc.Below the invention provides several embodiment, several combinations of display with double faces structure are described.
Fig. 3 is in the third embodiment of the present invention, the synoptic diagram of double side liquid crystal display.This double side liquid crystal display is made up of two colorful film transistors.First 124 of first substrate 10 is provided with thin film transistor (TFT) 114, first diffuse reflective layer 206, first liquid crystal layer 202, first color filter 208, second substrate 20, first polarizer 210 and first Polarizer 212, forms the first reflective Thin Film Transistor-LCD.First 126 of first substrate 10 is provided with second diffuse reflective layer 306, second liquid crystal layer 302, second color filter 308, the 3rd substrate 30, second polarizer 310 and second Polarizer 312, forms the second reflective tft liquid crystal device.
Double side liquid crystal display in Fig. 3 adopts the picture of a cluster film transistor controls LCD to show.When this double side liquid crystal display is used for folding-type electronic device, can when folding, only starts the first film transistor liquid crystal display (TFT-LCD), and when opening, only start second LCD.The picture that perhaps adopts two cluster film transistors (not shown) to control first and second Thin Film Transistor-LCD respectively shows.This technology is to be familiar with this technician to expect easily, is not given unnecessary details at this.
Fig. 4 is the synoptic diagram of double side liquid crystal display in the fourth embodiment of the present invention.This double side liquid crystal display is made up of with a black and white Thin Film Transistor-LCD a colorful film transistor liquid crystal display (TFT-LCD).The double side liquid crystal display of structure and Fig. 3 is similar, but does not have second colored filter 308 by second Thin Film Transistor-LCD that second 126 of first substrate 10 and the 3rd substrate 30 are formed.Therefore second Thin Film Transistor-LCD among Fig. 4 is a black and white display.
Fig. 5 is a double side liquid crystal display synoptic diagram in the fifth embodiment of the present invention.Double side liquid crystal display is made up of with a colored STN LCD a colorful film transistor liquid crystal display (TFT-LCD).The colorful film transistor liquid crystal display (TFT-LCD) is made up of first 124 of first substrate 10 and second substrate 20, and structure is described identical with Fig. 3.Colored STN LCD then is that specular layer 314, second liquid crystal layer 302, color filter 308, the 3rd substrate 30, scattering layer 316, second polarizer 310 and second Polarizer 312 are set on second 126 of first substrate 10 in regular turn.Colored STN LCD can not be provided with diffuse reflective layer on second 126 of first substrate 10, adopt reflection horizon 314 to cooperate scattering layer 316 to reduce cost but change.The method for making of scattering layer 316 can be (film) that a film has concave surface and convex surface, perhaps contains the film of particle, or utilizes the refractive index difference of different materials to reach dispersion effect.
Colored STN LCD in the double side liquid crystal display among Fig. 5 can utilize similar structure, changes the material of second liquid crystal layer 302 and different drive circuitry arrangement, becomes colored twisted nematic liquid crystal display.Thus, double side liquid crystal display is made up of colorful film transistor liquid crystal display (TFT-LCD) and colored twisted nematic liquid crystal display.
Fig. 6 is in the sixth embodiment of the present invention, and double side liquid crystal display is made up of with a black and white STN LCD a colorful film transistor liquid crystal display (TFT-LCD).Double side liquid crystal display structure and Fig. 5 of Fig. 6 are similar, and difference is in STN LCD and does not have color filter 308, so this STN LCD is a black and white display.Utilize similar structure, change the material of second liquid crystal layer 302 and different drive circuitry arrangement, this black and white is reversed LCD can change the black and white twisted nematic liquid crystal display into.Thus, double side liquid crystal display reverses LCD by colorful film transistor liquid crystal display (TFT-LCD) and black and white and is formed.
Fig. 7 A to Fig. 7 E is in the seventh embodiment of the present invention, the position view of the arrangement mode of three plate bases, liquid crystal injecting port and flexible circuit board.In the 7th embodiment, first flexible circuit board 120 and second flexible circuit board 122 are for being arranged at the same side of first substrate 10.The array mode of first substrate 10, second substrate 20 and the 3rd substrate is shown in Fig. 7 A.Form first reflective liquid-crystal display for first 124 of first substrate 10 of second substrate 20 and Fig. 7 C among Fig. 7 B with first liquid crystal injecting port 116.The 3rd substrate 30 of second of first substrate 10 126 and Fig. 7 E is formed second reflective liquid-crystal display with second liquid crystal injecting port 118 among Fig. 7 D.Wherein first liquid crystal injecting port 116 and second liquid crystal injecting port 118 are towards a direction, can inject liquid crystal simultaneously.
Fig. 8 A to Fig. 8 E is in the eighth embodiment of the present invention, the position view of the arrangement mode of three plate bases, liquid crystal injecting port and flexible circuit board.In the 8th embodiment, first flexible circuit board 120 and second flexible circuit board 122 are for being arranged at the not homonymy of first substrate 10.The array mode of first substrate 10, second substrate 20 and the 3rd substrate is shown in Fig. 8 A.Form first reflective liquid-crystal display for first 124 of first substrate 10 of second substrate 20 and Fig. 8 C among Fig. 8 B with first liquid crystal injecting port 116.First composition of the 3rd substrate 30 of second of first substrate 10 126 and Fig. 8 E has second reflective liquid-crystal display of second liquid crystal injecting port 118 among Fig. 8 D.Wherein first liquid crystal injecting port 116 and second liquid crystal injecting port 118 are towards a direction, can inject liquid crystal simultaneously.
The above only is preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (15)
1. two plane type LCD with three plate bases, this two plane type LCD comprises one first reflective liquid-crystal display and one second reflective liquid-crystal display, this two plane type LCD comprises:
One first substrate has one first and one second;
One first reflection horizon and one second reflection horizon lay respectively on this first and second of this first substrate;
One first liquid crystal layer and one second liquid crystal layer, be arranged at respectively on this first reflection horizon and second reflection horizon on;
One second substrate is arranged on this first liquid crystal layer;
One the 3rd substrate is arranged on this second liquid crystal layer;
One first Polarizer is arranged on this second substrate; And
One second Polarizer is arranged on the 3rd substrate;
Wherein, this first substrate, this first reflection horizon, this first liquid crystal layer, this second substrate and this first Polarizer are formed this first reflective liquid-crystal display, and this first substrate, this second reflection horizon, this second liquid crystal layer, the 3rd substrate and this second Polarizer are formed this second reflective liquid-crystal display.
2. two plane type LCD as claimed in claim 1, wherein the material of this first substrate, this second substrate and the 3rd substrate all is a glass.
3. two plane type LCD as claimed in claim 1, wherein this first reflection horizon or this second reflection horizon are a diffuse reflective layer.
4. two plane type LCD as claimed in claim 1, wherein this first reflection horizon is a specular layer, comprises that further a scattering layer is between this second substrate and this first Polarizer.
5. two plane type LCD as claimed in claim 1, wherein this second reflection horizon is a specular layer, comprises that further a scattering layer is between the 3rd substrate and this second Polarizer.
6. two plane type LCD as claimed in claim 1, comprise that further one first light guide plate is arranged on first Polarizer, one second light guide plate is arranged on second Polarizer, one light source and a catoptron are arranged at an end of this two plane type LCD, wherein the light of this light source ejaculation becomes the light source of this first reflective liquid-crystal display and this second reflective liquid-crystal display via this catoptron, this first light guide plate and the reflection of this second light guide plate.
7. two plane type LCD as claimed in claim 6, wherein this light source is a cathode fluorescent tube or a light emitting diode.
8. two plane type LCD as claimed in claim 1, comprise that further one first light guide plate is arranged on this first Polarizer, one second light guide plate is arranged on this second Polarizer, one first light source and one first reflex housing are arranged at an end of this first light guide plate, one secondary light source and one second reflex housing are arranged at an end of this second light guide plate, wherein the light of this first light source ejaculation is via this first reflex housing and this first guide light reflection, become the light source of this first reflective liquid-crystal display, and the light that this secondary light source penetrates becomes the light source of this second reflective liquid-crystal display via this second reflex housing and this second guide light reflection.
9. two plane type LCD as claimed in claim 8, wherein this first light source and secondary light source are fluorescent tube or light emitting diode.
10. two plane type LCD as claimed in claim 1 comprises that further one first polarizer is arranged on this first substrate, and one second polarizer is arranged on this second substrate.
11. two plane type LCD as claimed in claim 1, wherein this first and second reflective liquid-crystal display all is a reflective Thin Film Transistor-LCD.
12. two plane type LCD as claimed in claim 1, wherein this first reflective liquid-crystal display is a reflective Thin Film Transistor-LCD, and this second reflective liquid-crystal display is a reflective twisted nematic liquid crystal display or a reflective STN LCD.
13. two plane type LCD as claimed in claim 1, wherein the liquid crystal injecting port of this first liquid crystal layer and this second liquid crystal layer is positioned at the same side of this double side liquid crystal display.
14. two plane type LCD as claimed in claim 1, this first reflective liquid-crystal display also comprises one first flexible printed wiring board, this second reflective liquid-crystal display also comprises one second flexible printed wiring board, and wherein this first flexible printed wiring board and this second flexible printed wiring board are positioned at the same side of this two plane type LCD or homonymy not.
15. two plane type LCD as claimed in claim 14, wherein the liquid crystal injecting port of this first liquid crystal layer and this second liquid crystal layer is positioned at the same side of this double side liquid crystal display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031478514A CN1308748C (en) | 2003-06-25 | 2003-06-25 | Double-faced LCD |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031478514A CN1308748C (en) | 2003-06-25 | 2003-06-25 | Double-faced LCD |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1567042A CN1567042A (en) | 2005-01-19 |
| CN1308748C true CN1308748C (en) | 2007-04-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031478514A Expired - Fee Related CN1308748C (en) | 2003-06-25 | 2003-06-25 | Double-faced LCD |
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| Country | Link |
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| CN (1) | CN1308748C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103208247B (en) * | 2012-01-16 | 2016-12-28 | 联想(北京)有限公司 | A kind of Biscreen display and display packing |
| CN106773204A (en) * | 2016-12-23 | 2017-05-31 | 武汉华星光电技术有限公司 | Reflective double-side display device |
| CN109031763A (en) * | 2018-08-30 | 2018-12-18 | 深圳市华星光电技术有限公司 | A kind of display |
| CN112965307A (en) * | 2021-03-30 | 2021-06-15 | 昆山龙腾光电股份有限公司 | Double-sided reflective display panel |
| CN113126358A (en) * | 2021-04-25 | 2021-07-16 | 昆山龙腾光电股份有限公司 | Double-sided display panel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0255334A (en) * | 1988-08-22 | 1990-02-23 | Seiko Epson Corp | Liquid crystal display device |
| JP2002082352A (en) * | 2000-09-08 | 2002-03-22 | Fuji Xerox Co Ltd | Liquid crystal display element |
| JP2003029293A (en) * | 2001-07-13 | 2003-01-29 | Minolta Co Ltd | Layered display device and manufacturing method therefor |
-
2003
- 2003-06-25 CN CNB031478514A patent/CN1308748C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0255334A (en) * | 1988-08-22 | 1990-02-23 | Seiko Epson Corp | Liquid crystal display device |
| JP2002082352A (en) * | 2000-09-08 | 2002-03-22 | Fuji Xerox Co Ltd | Liquid crystal display element |
| JP2003029293A (en) * | 2001-07-13 | 2003-01-29 | Minolta Co Ltd | Layered display device and manufacturing method therefor |
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| Publication number | Publication date |
|---|---|
| CN1567042A (en) | 2005-01-19 |
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