CN102520549B - Transparent display - Google Patents
Transparent display Download PDFInfo
- Publication number
- CN102520549B CN102520549B CN201110396124.2A CN201110396124A CN102520549B CN 102520549 B CN102520549 B CN 102520549B CN 201110396124 A CN201110396124 A CN 201110396124A CN 102520549 B CN102520549 B CN 102520549B
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- China
- Prior art keywords
- film material
- transparent display
- microscopic scatterers
- blooming
- guide plate
- Prior art date
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- 239000000463 material Substances 0.000 claims abstract description 76
- 239000010408 film Substances 0.000 abstract description 56
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 10
- 239000002245 particle Substances 0.000 abstract description 5
- 239000012788 optical film Substances 0.000 abstract description 4
- 239000004417 polycarbonate Substances 0.000 description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 description 6
- 239000005020 polyethylene terephthalate Substances 0.000 description 6
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 5
- -1 polyethylene terephthalate Polymers 0.000 description 5
- 239000004926 polymethyl methacrylate Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 4
- 229920000515 polycarbonate Polymers 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 3
- 239000012994 photoredox catalyst Substances 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Landscapes
- Optical Elements Other Than Lenses (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Liquid Crystal (AREA)
Abstract
A transparent display comprises a liquid crystal display panel and a backlight module. The backlight module is configured at one side of the liquid crystal display panel and comprises a light guide plate, at least one light source and at least one optical film. The light guide plate is provided with at least one side light incident surface, a first surface and a second surface opposite to the first surface, and the second surface is positioned between the liquid crystal display panel and the first surface. The light source is arranged adjacent to the side light incoming surface of the light guide plate, the optical film is arranged on the first surface, the optical film comprises a film material and a plurality of scattering particles doped in the film material, and the refractive index of the film material is different from that of the scattering particles.
Description
Technical field
The invention relates to a kind of display, and relate to a kind of transparent display (transparent display) especially.
Background technology
Existing market is towards height contrast (high contrast ratio), without characteristics such as gray-scale inversion (no gray scaleinversion), colour cast little (little color shift), brightness high (high luminance), high colorfulness, high color saturation, rapid reaction and wide viewing angles for the performance requirement of liquid crystal display (liquid crystal display, LCD).
Generally speaking, liquid crystal display can divide into penetrating LCD, reflective liquid-crystal display and semi-penetrated semi-reflected liquid crystal display haply.Along with the application of display is increasingly extensive, transparent display is developed gradually.Because user can see the object of opposite side from the side of transparent display, therefore transparent display does not visually have thick and heavy sense, and user can not be allowed to feel to take up space very much.In addition, transparent display can save many parts (housing at the such as transparent display back side can be omitted) in one-piece construction, in manufacturing cost, therefore have advantage to a certain degree.
In existing transparent display, the light source needed for show image comes from external light source and backlight module usually.When external light source is not enough, transparent display can show image than relying on the light that backlight module provides.Comparatively common mode adopts the backlight module including light source and light guide plate at present, because light guide plate is produce the site with specific distribution kenel thereon in the mode of wire mark mostly, these sites with specific distribution kenel are except easily by except audience's identification, also easily cause repeatedly line (Moire), cause the display quality of transparent display not good.
Hold above-mentioned, one of real emphasis for current research and development of display quality how effectively improving transparent display.
Summary of the invention
The invention provides a kind of transparent display, it has good display quality.
The invention provides a kind of transparent display, it comprises a display panels and a backlight module.Backlight module is configured at the side of display panels, and backlight module comprises a light guide plate, at least one light source and at least one blooming.Light guide plate has at least side incidence surface, a first surface and relative to the second surface of first surface, and second surface is between display panels and first surface.Light source is adjacent to the side incidence surface configuration of light guide plate, and blooming is configured on first surface, and wherein blooming comprises a film material and multiple microscopic scatterers be doped in film material, and the refractive index of film material differs from the refractive index of microscopic scatterers.
In one embodiment of this invention, aforesaid microscopic scatterers system is distributed in film material equably.
In one embodiment of this invention, the distribution density of aforesaid microscopic scatterers is between 0.1 × 10
-5pcs/um
3to 100 × 10
-5pcs/um
3between.
In one embodiment of this invention, the distribution density of microscopic scatterers in film material is higher at distance side incidence surface more at a distance.For example, the distribution density of microscopic scatterers is between 0.01 × 10
-5pcs/um
3to 260 × 10
-5pcs/um
3between.
In one embodiment of this invention, aforesaid at least side incidence surface comprises one first side incidence surface and a second side incidence surface relative with the first side incidence surface, and aforesaid at least one light source comprises one first light source and a secondary light source, first light source is adjacent to the first side incidence surface configuration, secondary light source is adjacent to the second side incidence surface configuration, and distance the first side incidence surface and the second side incidence surface more at a distance, the distribution density of microscopic scatterers in film material is higher.For example, the distribution density of microscopic scatterers is between 0.01 × 10
-5pcs/um
3to 260 × 10
-5pcs/um
3between.
In one embodiment of this invention, the particle diameter of each microscopic scatterers aforesaid is between 1 micron to 15 microns.
In one embodiment of this invention, the refractive index of aforesaid film material is greater than the refractive index of light guide plate.
In one embodiment of this invention, aforesaid at least one blooming comprises one first blooming and one second blooming.First blooming comprises one first film material and multiple the first microscopic scatterers be doped in the first film material, and the refractive index of the first film material differs from the refractive index of the first microscopic scatterers.Second blooming comprises one second film material and multiple the second microscopic scatterers be doped in the second film material, and the refractive index of the second film material differs from the refractive index of the second microscopic scatterers.In addition, the first blooming is between the second blooming and light guide plate.
In one embodiment of this invention, aforesaid first microscopic scatterers system is distributed in the first film material equably, and the second microscopic scatterers system is distributed in the second film material equably.
In one embodiment of this invention, aforesaid first microscopic scatterers system is distributed in the first film material equably, and, the distribution density of the second microscopic scatterers in the second film material is higher at distance side incidence surface more at a distance.
In one embodiment of this invention, aforesaid second microscopic scatterers system is distributed in the second film material equably, and, the distribution density of the first microscopic scatterers in the first film material is higher at distance side incidence surface more at a distance.
In one embodiment of this invention, the distribution density of the first microscopic scatterers in the first film material is higher, and, the distribution density of the second microscopic scatterers in the second film material is higher at distance side incidence surface more at a distance at distance side incidence surface more at a distance.
Compared to the site in light guide plate, the microscopic scatterers in blooming of the present invention not easily by audience's identification, and can not cause the image shown by transparent display to occur repeatedly line.Therefore, the transparent display of the application has good display quality.
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate institute's accompanying drawings to be described in detail below.
Accompanying drawing explanation
Fig. 1 is the diagrammatic cross-section of the transparent display of first embodiment of the invention.
Fig. 2 is the diagrammatic cross-section of the transparent display of second embodiment of the invention.
Fig. 3 is the diagrammatic cross-section of the transparent display of third embodiment of the invention.
Fig. 4 is the diagrammatic cross-section of the transparent display of fourth embodiment of the invention.
Fig. 5 is the diagrammatic cross-section of the transparent display of fifth embodiment of the invention.
Fig. 6 is the diagrammatic cross-section of the transparent display of sixth embodiment of the invention.
Fig. 7 is the diagrammatic cross-section of the transparent display of seventh embodiment of the invention.
Description of reference numerals
100,100a ~ 100e, 200: transparent display
110: display panels
120: backlight module
122: light guide plate
122a: side incidence surface
122a1: the first side incidence surface
122a2: the second side incidence surface
122b: first surface
122c: second surface
124: light source
124a: the first light source
124b: secondary light source
126: blooming
126 ': the first blooming
126 ": the second blooming
126a: film material
126a ': the first film material
126a ": the second film material
126b: microscopic scatterers
126b ': the first microscopic scatterers
126b ": the second microscopic scatterers
Specific implementation method
[the first embodiment]
Fig. 1 is the diagrammatic cross-section of the transparent display of first embodiment of the invention.Please refer to Fig. 1, the transparent display 100 of the present embodiment comprises display panels 110 and a backlight module 120.Backlight module 120 is configured at the side of display panels 110, and backlight module 120 comprises a light guide plate 122, at least one light source 124 and at least one blooming 126.Light guide plate 122 has at least that side incidence surface 122a, a first surface 122b and are relative to the second surface 122c of first surface 122b, and second surface 122c is between display panels 110 and first surface 122b.The side incidence surface 122a that light source 124 is adjacent to light guide plate 122 configures, and blooming 126 is configured on first surface 122b, wherein blooming 126 comprises a film material 126a and multiple microscopic scatterers 126b be doped in film material 126a, and the refractive index of film material 126a differs from the refractive index of microscopic scatterers 126b.In addition, the configuration mode of blooming 126 on light guide plate 122 first surface 122b can comprise coating, attach or other modes be formed at light guide plate 122 first surface 122b.At the present embodiment, the refractive index of rete 126a can be greater than the refractive index of light guide plate 122, to increase forward bright dipping ratio during microscopic scatterers 126b scattered beam, to meet user's observation angle.
In the present embodiment, display panels 110 is such as a penetrate through type liquid crystal display board or a semi-penetration, semi-reflective (transflective) display panels.In order to increase the penetrability of transparent display 100, penetrate through type liquid crystal display board can be adopted to be good.
In order to make transparent display 100 can possess transmittance to a certain degree, the component (as light guide plate 122, blooming 126) in the backlight module 120 of the present embodiment all must possess penetrance to a certain degree.In the present embodiment, the material of light guide plate 122 such as comprises polymethylmethacrylate (polymethylmethacrylate, PMMA), polycarbonate (polycarbonate, PC), polystyrene (polystyrene PS), polyethylene terephthalate (polyethylene terephthalate, PET) etc.
The first surface 122b of the corresponding light guide plate 122 of the present embodiment need not configure reflector plate, with the object making user can watch the transparent display back side.In addition, in order to increase the penetration of transparent display, can avoid arranging optical thin film (as prism film, diffusion barrier, bright enhancement film etc.) between display panels 110 and the second surface 122c of light guide plate 122.
In the present embodiment, light source 124 is such as a white light emitting diode striation (light bar).For example, this white light emitting diode striation can be made up of a wiring board and many white light emitting diode packaging bodies.In addition, wiring board is such as a hard (rigid) wiring board or a pliability (flexible) wiring board, and white light emitting diode packaging body is such as the white light emitting diode packaging body of a top emission type state (top-view) or the side white light emitting diode packaging body to lighting kenel (side-view).Right light source kind is not limited thereto, and also can select fluorescent lamp or other suitable light source types.
It should be noted that, in the blooming 126 of the present embodiment, microscopic scatterers 126b system is distributed in film material 126a equably.The distribution density of microscopic scatterers 126b in film material 126a is such as can between 0.1 × 10
-5pcs/um
3to 100 × 10
-5pcs/um
3between, and the particle diameter of each microscopic scatterers 126b is such as between 1 micron to 15 microns.Because the particle diameter of microscopic scatterers 126b is very little, therefore, when backlight module 120 is unlocked, microscopic scatterers 126b is not easily by the identification of audience institute.
In the present embodiment, the material of film material 126a such as comprises polymethylmethacrylate (polymethylmethacrylate, FMMA), polycarbonate (polycarbonate, PC), polyethylene terephthalate (polyethylene terephthalate, PET) etc., the refractive index of film material 126a is such as between 1.35 to 1.65, and the material of microscopic scatterers 126b be such as silicon dioxide (SiO2) _ etc., and the refractive index of microscopic scatterers 126b is such as between 1.4 to 1.75.
[the second embodiment]
Fig. 2 is the diagrammatic cross-section of the transparent display of second embodiment of the invention.Please refer to Fig. 2, the transparent display 100a of the present embodiment and the transparent display 100 of the first embodiment similar, only the two Main Differences be in: in the transparent display 100a at the present embodiment, at distance side incidence surface 122a more at a distance, the distribution density of microscopic scatterers 126b in film material 126a is higher.For example, the distribution density of microscopic scatterers 126b is between 0.01 × 10
-5pcs/um
3to 260 × 10
-5pcs/um
3between, such as be 0.01 × 10 close to the distribution density of the microscopic scatterers 126b of side incidence surface 122a
-5pcs/um
3, the distribution density away from the microscopic scatterers 126b of side incidence surface 122a is 260 × 10
-5pcs/um
3.
[the 3rd embodiment]
Fig. 3 is the diagrammatic cross-section of the transparent display of third embodiment of the invention.Please refer to Fig. 3, the transparent display 100b of the present embodiment and the transparent display 100 of the first embodiment similar, only the two Main Differences be in: in the transparent display 100b at the present embodiment, blooming 126 comprises one first blooming 126 ' and one second blooming 126 ".First blooming 126 ' comprises one first film material 126a ' and multiple the first microscopic scatterers 126b ' be doped in the first film material 126a ', and the refractive index of the first film material 126a ' differs from the refractive index of the first microscopic scatterers 126b '.Second blooming 126 " comprise one second film material 126a " and be multiplely doped in the second film material 126a " in the second microscopic scatterers 126b ", and the second film material 126a " refractive index differ from the second microscopic scatterers 126b " refractive index.In addition, the first blooming 126 ' is positioned at the second blooming 126 " and light guide plate 122 between.Use the object of multi-layer optical film, the degree of freedom of optics taste adjustment can be increased.
Can know from Fig. 3 and learn, the first microscopic scatterers 126b ' is distributed in the first film material 126a ' equably, and the second microscopic scatterers 126b " be distributed in the second film material 126a equably " in.It should be noted that the distribution density of the first microscopic scatterers 126b ' in the first film material 126a ' and the second microscopic scatterers 126b " at the second film material 126a " in distribution density can identical or inequality.In addition, material and the second film material 126a of the first film material 126a ' " material can identical or inequality, and the material of the first microscopic scatterers 126b ' and the second microscopic scatterers 126b " material can identical or inequality.
[the 4th embodiment]
Fig. 4 is the diagrammatic cross-section of the transparent display of fourth embodiment of the invention.Please refer to Fig. 4, the transparent display 100c of the present embodiment and the transparent display 100b of the 3rd embodiment is similar, only the two Main Differences be in: the first microscopic scatterers 126b ' is distributed in the first film material 126a ' equably, and distance side incidence surface 122a more at a distance, the second microscopic scatterers 126b " at the second film material 126a " in distribution density higher.
[the 5th embodiment]
Fig. 5 is the diagrammatic cross-section of the transparent display of fifth embodiment of the invention.Please refer to Fig. 5, the transparent display 100d of the present embodiment and the transparent display 100b of the 3rd embodiment, only being in the second microscopic scatterers 126b of the two Main Differences " be distributed in the second film material 126a equably " in, and, the distribution density of the first microscopic scatterers 126b ' in the first film material 126a ' is higher at distance side incidence surface 122a more at a distance.
[the 6th embodiment]
Fig. 6 is the diagrammatic cross-section of the transparent display of sixth embodiment of the invention.Please refer to Fig. 6, the transparent display 100e of the present embodiment and the transparent display 100b of the 3rd embodiment, only the two Main Differences be in: at distance side incidence surface 122a more at a distance, the distribution density of the first microscopic scatterers 126b ' in the first film material 126a ' is higher, and distance side incidence surface 122a more at a distance, the second microscopic scatterers 126b " at the second film material 126a " in distribution density higher.
[the 7th embodiment]
Fig. 7 is the diagrammatic cross-section of the transparent display of seventh embodiment of the invention.Please refer to Fig. 7, the transparent display 200 of the present embodiment and the transparent display 100a of the second embodiment, only the two Main Differences be in: the light guide plate 122 of the present embodiment has one first side incidence surface 122a1 and, the second side incidence surface 122a2 relative with the first side incidence surface 122a1, and aforesaid at least one light source 124 comprises an one first light source 124a and secondary light source 124b, first light source 124 is adjacent to the first side incidence surface 122a1 and configures, secondary light source 124b is adjacent to the second side incidence surface 122a2 and configures, and at distance the first side incidence surface 122a1 and the second side incidence surface 122a2 more at a distance, the distribution density of microscopic scatterers 126b in film material 126a is higher.For example, the distribution density of microscopic scatterers 126b is between 0.01 × 10
-5pcs/um
3to 260 × 10
-5pcs/um
3between.
Compared to the site in light guide plate, the microscopic scatterers in blooming of the present invention not easily by audience's identification, and can not cause the image shown by transparent display to occur repeatedly line.Therefore, the transparent display of the application has good display quality.
Although the present invention is with embodiment openly as above, so itself and be not used to limit the present invention, without departing from the spirit and scope of the present invention, when doing a little change and retouching, therefore protection scope of the present invention is as the criterion with claims any those skilled in the art.
Claims (5)
1. a transparent display, comprising:
One display panels;
One backlight module, is configured at the side of this display panels, and this backlight module comprises:
One light guide plate, have at least side incidence surface, a first surface and relative to the second surface of this first surface, wherein this second surface is between this display panels and this first surface;
At least one light source, is adjacent to this side incidence surface configuration of this light guide plate; And
At least one blooming, is configured on this first surface;
It is characterized in that,
This blooming comprises:
One first blooming, comprise one first film material and multiple the first microscopic scatterers be doped in this first film material, the refractive index of this first film material differs from the refractive index of this first microscopic scatterers; And
One second blooming, comprise one second film material and multiple the second microscopic scatterers be doped in this second film material, the refractive index of this second film material differs from the refractive index of this second microscopic scatterers, and wherein this first blooming is between this second blooming and this light guide plate;
Wherein, respectively the refractive index of this film material is greater than the refractive index of this light guide plate.
2. transparent display as claimed in claim 1, it is characterized in that, described first microscopic scatterers is distributed in this first film material equably, and described second microscopic scatterers is distributed in this second film material equably.
3. transparent display as claimed in claim 1, it is characterized in that, described first microscopic scatterers is distributed in this first film material equably, and apart from this side incidence surface more at a distance, the distribution density of described second microscopic scatterers in this second film material is higher.
4. transparent display as claimed in claim 1, it is characterized in that, described second microscopic scatterers is distributed in this second film material equably, and apart from this side incidence surface more at a distance, the distribution density of described first microscopic scatterers in this first film material is higher.
5. transparent display as claimed in claim 1, it is characterized in that, apart from this side incidence surface more at a distance, the distribution density of described first microscopic scatterers in this first film material is higher, and apart from this side incidence surface more at a distance, the distribution density of described second microscopic scatterers in this second film material is higher.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100138477 | 2011-10-24 | ||
| TW100138477A TW201317673A (en) | 2011-10-24 | 2011-10-24 | Transparent display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102520549A CN102520549A (en) | 2012-06-27 |
| CN102520549B true CN102520549B (en) | 2015-06-10 |
Family
ID=46291523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110396124.2A Active CN102520549B (en) | 2011-10-24 | 2011-11-29 | Transparent display |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102520549B (en) |
| TW (1) | TW201317673A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900027A (en) * | 2012-12-28 | 2014-07-02 | 鸿富锦精密工业（深圳）有限公司 | Optical module |
| CN104570191A (en) * | 2013-10-24 | 2015-04-29 | 华为终端有限公司 | Light guide plate and backlight module |
| TW201531777A (en) | 2014-02-07 | 2015-08-16 | Chunghwa Picture Tubes Ltd | Transparent display apparatus |
| TWI502564B (en) * | 2014-05-23 | 2015-10-01 | Au Optronics Corp | Transparent display device and operation method thereof |
| CN104375325B (en) * | 2014-11-17 | 2017-10-24 | 深圳市华星光电技术有限公司 | A kind of transparent display |
| CN104534357A (en) * | 2014-12-22 | 2015-04-22 | 深圳市华星光电技术有限公司 | Backlight module, transparent display panel and transparent display device |
| US20160178832A1 (en) * | 2014-12-22 | 2016-06-23 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module, transparent display panel and transparent display apparatus |
| TWI677733B (en) * | 2015-06-01 | 2019-11-21 | 凌暉科技股份有限公司 | Double-sided display |
| CN106646727B (en) | 2017-03-17 | 2020-02-18 | 京东方科技集团股份有限公司 | Transparent display device |
| CN114488609B (en) * | 2020-11-11 | 2023-01-31 | 京东方科技集团股份有限公司 | Transparent display device, manufacturing method thereof and backlight module |
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| CN2594822Y (en) * | 2002-12-26 | 2003-12-24 | 鸿富锦精密工业（深圳）有限公司 | Background light system |
| CN1553259A (en) * | 2003-05-27 | 2004-12-08 | 明基电通股份有限公司 | Light negative module |
| CN101153925A (en) * | 2006-09-30 | 2008-04-02 | 奇美电子股份有限公司 | Optical plate and its manufacturing method, backlight module and LCD device |
| CN102096235A (en) * | 2009-12-15 | 2011-06-15 | 乐金显示有限公司 | Transparent display device |
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| JP2001318210A (en) * | 2000-05-11 | 2001-11-16 | Keiwa Inc | Light diffusion sheet and backlight unit using the same |
| TW200730886A (en) * | 2005-12-21 | 2007-08-16 | Nippon Catalytic Chem Ind | Light diffusing sheet and light diffusing plate, and backlight unit and liquid crystal display device employing the same |
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2011
- 2011-10-24 TW TW100138477A patent/TW201317673A/en unknown
- 2011-11-29 CN CN201110396124.2A patent/CN102520549B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2594822Y (en) * | 2002-12-26 | 2003-12-24 | 鸿富锦精密工业（深圳）有限公司 | Background light system |
| CN1553259A (en) * | 2003-05-27 | 2004-12-08 | 明基电通股份有限公司 | Light negative module |
| CN101153925A (en) * | 2006-09-30 | 2008-04-02 | 奇美电子股份有限公司 | Optical plate and its manufacturing method, backlight module and LCD device |
| CN102096235A (en) * | 2009-12-15 | 2011-06-15 | 乐金显示有限公司 | Transparent display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102520549A (en) | 2012-06-27 |
| TW201317673A (en) | 2013-05-01 |
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