CN105334554A - One-way light transmitting film, light collector and backlight source module - Google Patents
One-way light transmitting film, light collector and backlight source module Download PDFInfo
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- CN105334554A CN105334554A CN201410397961.0A CN201410397961A CN105334554A CN 105334554 A CN105334554 A CN 105334554A CN 201410397961 A CN201410397961 A CN 201410397961A CN 105334554 A CN105334554 A CN 105334554A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
- G02B3/0037—Arrays characterized by the distribution or form of lenses
- G02B3/0056—Arrays characterized by the distribution or form of lenses arranged along two different directions in a plane, e.g. honeycomb arrangement of lenses
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Abstract
The invention discloses a one-way light transmitting film, which comprises a transparent substrate. The transparent substrate comprises an upper surface and a lower surface; the upper surface of the transparent substrate is covered with a micro lens array, and micro lenses in the micro lens array are convex lenses; the lower surface of the transparent substrate is covered with a reflective material layer; the reflective material layer is used for reflecting light incoming from below the one-way light transmitting film; the position, corresponding to the center of each micro lens, of the reflective material layer is provided with a transparent window; and light incoming from above the one-way light transmitting film is gathered inside the transparent window and passes through the reflective material layer. The invention also discloses a light collector made by using the one-way light transmitting film and a backlight source module integrated with the light collector. On the premise of not increasing backlight power consumption, the backlight source module can improve the backlight brightness of a transmission type liquid crystal screen, and screen visibility under outdoor strong light is enhanced.
Description
Technical field
The present invention relates to LCDs technical field, in particular a kind of Unidirectional transparent film, the light collector utilizing described Unidirectional transparent film and backlight source module.
Background technology
Along with the fast development of mobile terminal, chromatic liquid crystal screen is widely used.Conventional chromatic liquid crystal screen is transmission-type, and screen self not active illuminating, needs a backlight to use.But the energy of this backlight consumption generally accounts for the over half of screen power consumption, especially out of doors, in order to avoid the reflection of surround lighting on screen reduces display effect, screen intensity must be adjusted to very highly just can provide suitable visibility, add the design difficulty of backlight, too increase the power consumption of backlight, cause sharply reduce the cruising time of product.
Zeng You company attempted LCDs (LCD that is reflective and half-transmission half-reflection type, LiquidCrystalDisplay) to reduce backlight power consumption, but this type of backlight technology can cause the color saturation of screen low, the problem that the display effects such as poor contrast are not good, be only applicable to lay special stress on low-power consumption and pay no attention to some occasions of visual effect, as accutron etc.Requiring higher occasion to visual effect, as the field such as mobile phone, panel computer, this type of backlight technology, because birth defect, is not promoted use.
Therefore, how under the prerequisite not increasing backlight power consumption, improving the backlight illumination of transmission liquid crystal screen, be lifted at the screen visibility under outdoor high light, is a problem highly significant.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of Unidirectional transparent film, light collector and backlight source module, under the prerequisite not increasing backlight power consumption, can improve the backlight illumination of transmission liquid crystal screen, be lifted at the screen visibility under outdoor high light.
In order to solve the problems of the technologies described above, the invention provides a kind of Unidirectional transparent film, it is characterized in that, comprising: a transparency carrier, comprising upper surface and lower surface;
The upper surface of described transparency carrier is coated with microlens array, and the lenticule in described microlens array is convex lens;
The lower surface of described transparency carrier is coated with reflective material layer, described reflective material layer is for reflecting light incident below described Unidirectional transparent film, the described reflective material layer position corresponding with each lenticular center has transparency window, and light incident above described Unidirectional transparent film to converge in described transparency window and through described reflective material layer.
Further, this Unidirectional transparent film also comprises following feature:
Each transparency window is positioned on corresponding lenticular focal plane.
Further, this Unidirectional transparent film also comprises following feature:
Described lenticular shape is circular, square or regular hexagon.
Further, this Unidirectional transparent film also comprises following feature:
Described microlens array dense arrangement, connects between adjacent lenticule.
Further, this Unidirectional transparent film also comprises following feature:
The area of described transparency window is less than 1/3 of corresponding lenticule clear field.
Further, this Unidirectional transparent film also comprises following feature:
Described Unidirectional transparent film is mantle or dura mater.
In order to solve the problems of the technologies described above, present invention also offers a kind of light collector, it is characterized in that, comprising the transparent body,
The end face of the described transparent body covers above-mentioned Unidirectional transparent film, and the described transparent body is except a side, and other surfaces are all coated with the inside reflective material layer of reflective surface.
Further, this light collector also comprises following feature:
The described transparent body is rectangular parallelepiped.
In order to solve the problems of the technologies described above, present invention also offers a kind of light collector, it is characterized in that, comprise a box body,
The end face of described box body is above-mentioned Unidirectional transparent film, or the end face of described box body is coated with above-mentioned Unidirectional transparent film;
Described box body side is transparent illumination window, and other sides of described box body and the inwall of bottom surface are coated with the inside reflective material layer of reflective surface.
Further, this light collector also comprises following feature:
Described tray interior is air or other transparent mediums.
In order to solve the problems of the technologies described above, present invention also offers a kind of backlight source module, comprise backlight, described backlight comprises a backlight diffuser plate, described backlight diffuser plate be used for offside always light carry out scattering with uniform illumination LCDs, it is characterized in that, also comprise: light collector, the side not covering reflective material layer of described light collector connects with the side of described backlight diffuser plate;
Described light collector, for collecting surround lighting, imports the side direction of described backlight diffuser plate by the surround lighting collected.
In order to solve the problems of the technologies described above, present invention also offers a kind of backlight source module, comprise backlight, described backlight comprises a backlight diffuser plate, described backlight diffuser plate be used for offside always light carry out scattering with uniform illumination LCDs, it is characterized in that, also comprise: light collector, the side at the illumination window place of described light collector connects with the side of described backlight diffuser plate;
Described light collector, for collecting surround lighting, imports the side direction of described backlight diffuser plate by the surround lighting collected.
Compared with prior art, a kind of Unidirectional transparent film provided by the invention, light collector and backlight source module, the Unidirectional transparent film (direct transmission-regular reflection film) utilizing micro lens technology to make, the major part of the light coming from (transmissive side) above Unidirectional transparent film can be allowed to penetrate self, and the major part of the light coming from (reflection side) below Unidirectional transparent film is reflected back, utilize the light collector of this Unidirectional transparent film production to collect surround lighting and penetrate from the transparent illumination window of light collector side, be integrated with the backlight source module of this light collector, light collector can be utilized to collect surround lighting and import backlight diffuser plate, illuminate LCDs, therefore described backlight source module can under the prerequisite not increasing backlight power consumption, improve the backlight illumination of transmission liquid crystal screen, be lifted at the screen visibility under outdoor high light.
Accompanying drawing explanation
Fig. 1 is the longitudinal sectional drawing of the Unidirectional transparent film of the embodiment of the present invention;
Fig. 2 is the birds-eye perspective of the Unidirectional transparent film of the embodiment of the present invention;
Fig. 3 is the light path principle figure of the Unidirectional transparent film of the embodiment of the present invention;
Fig. 4 is the stereographic map signal of the light collector of the embodiment of the present invention;
Fig. 5 is the longitudinal profile schematic diagram of the backlight source module of the embodiment of the present invention;
Fig. 6 is the terminal schematic diagram of the LCDs of the band surround lighting collecting function of the embodiment of the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, hereinafter will be described in detail to embodiments of the invention by reference to the accompanying drawings.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combination in any mutually.
Lens are a kind of common optical elements.In recent years, people can produce the very little lens of diameter and lens arra, this lens and lens arra normally can not be identified by the human eye, and only have and just can observe with equipment such as microscope, scanning electron microscope, atomic force microscopes, Here it is lenticule and microlens array.These microlens arrays are widely used in each technical fields such as laser, photoelectron, imageing sensor.
The invention discloses a kind of direct transmission-regular reflection film utilizing micro lens technology to make, the major part of the light coming from side (transmissive side) can be allowed to penetrate self, and the light major part coming from opposite side (reflection side) is reflected back.
As shown in Figure 1, embodiments provide a kind of Unidirectional transparent film, comprising: a transparency carrier 10, comprises upper surface and lower surface;
The upper surface of described transparency carrier 10 is coated with microlens array, and the lenticule 20 in described microlens array is convex lens;
The lower surface of described transparency carrier is coated with reflective material layer 30, described reflective material layer 30 is for reflecting light incident below described Unidirectional transparent film, described reflective material layer 30 position corresponding with the center of each lenticule 20 has transparency window 40, and light incident above described Unidirectional transparent film to converge in described transparency window 40 and through described reflective material layer 30;
Wherein, the upper surface of described transparency carrier refers to the surface being coated with microlens array, and the lower surface of described transparency carrier refers to the surface being coated with reflective material layer.Distinguishing upper and lower surface is for convenience of description, and the direction that should not be considered to when using Unidirectional transparent film limits.
Preferably, each transparency window is positioned on corresponding lenticular focal plane.
Wherein, described lenticular shape is not limit, and is generally circle, square or regular hexagon.
Preferably, described microlens array dense arrangement, connects between adjacent lenticule.As described in lenticular shape be circular, then tangent between adjacent lenticule, as described in lenticular shape be square or regular hexagon, then a shared side between adjacent lenticule.
Preferably, the area of described transparency window is less than 1/3 of corresponding lenticule clear field.Such as, the shape of lenticule and transparency window is circle, and lenslet diameter is 200um, and transparency window diameter is 40um, then the area of described transparency window is 1/25 of described lenticule clear field.
Wherein, described Unidirectional transparent film is mantle or dura mater.
Fig. 1 and Fig. 2 is the principle schematic of this Unidirectional transparent film (direct transmission-regular reflection film), and wherein Fig. 1 is longitudinal sectional view, and Fig. 2 is the skeleton view overlooked.From structure, this direct transmission-regular reflection film comprises a transparency carrier 10, and are microlens arrays of dense arrangement at the upper surface of described transparency carrier 10, these lenticules 20 are convex lens.The shape of these convex lens is not limit, but is generally circular, square or regular hexagon.Cover one deck high reflecting material layer 30 at the lower surface of described transparency carrier 10, the reflecting rate of high reflecting material is very high.High reflecting material layer 30 has transparent fenestella 40 corresponding on the position at lenticule center.These fenestellas 40 are positioned on lenticular focal plane, can allow the light collection of vertical direction incidence in fenestella 40 and pass reflective material layer 30.
Fig. 3 is the light path principle figure of this direct transmission-regular reflection film, for single lenticule and transparent fenestella, when light is incident from the top (transmissive side) of direct transmission-regular reflection film, major part light is converged by convex lens, and through transparency carrier 10, penetrate from the transparent fenestella 40 of reflective material layer 30.When light is incident from the below (reflection side) of direct transmission-regular reflection film, due to the most area of lower surface of transparency carrier 10 being all coated with high reflecting material, so most of light can be reflected back.
As shown in Figure 4, embodiments provide a kind of light collector, comprise the transparent body,
The end face of the described transparent body covers Unidirectional transparent film, and the described transparent body is except a side, and other surfaces are all coated with the inside reflective material layer of reflective surface.
Wherein, the shape of the described transparent body is not limit, and is generally rectangular parallelepiped.
Wherein, the side not covering reflective material layer of the described transparent body is as transparent illumination window.
The embodiment of the present invention additionally provides a kind of light collector, comprises a box body,
The end face of described box body is Unidirectional transparent film, or the end face of described box body is coated with Unidirectional transparent film;
Described box body side is transparent illumination window, and other sides of described box body and the inwall of bottom surface are coated with the inside reflective material layer of reflective surface.
Wherein, described tray interior is air or other transparent mediums.
The principle of work of described light collector is: come from the surround lighting above light collector, after entering light collector inside through Unidirectional transparent film, due to the Unidirectional transparent characteristic of Unidirectional transparent film, light cannot inject to light collector outside again, at light collector inner counter interflection, and finally can only penetrate from the transparent illumination window of side.
As shown in Figure 5, embodiments provide a kind of backlight source module, comprise backlight, described backlight comprises a backlight diffuser plate, described backlight diffuser plate be used for offside always light carry out scattering with uniform illumination LCDs, also comprise: a light collector, the side not covering reflective material layer of described light collector connects with the side of described backlight diffuser plate;
Described light collector, for collecting surround lighting, imports the side direction of described backlight diffuser plate by the surround lighting collected.
Wherein, described light collector comprises the transparent body, and the end face of the described transparent body covers above-mentioned Unidirectional transparent film, and the described transparent body is except a side, and other surfaces are all coated with the inside reflective material layer of reflective surface.
Wherein, described backlight source module can comprise one or more light collector, and the side at the transparent illumination window place of each light collector connects with a side of described backlight.
As shown in Figure 5, the embodiment of the present invention additionally provides a kind of backlight source module, comprise backlight, described backlight comprises a backlight diffuser plate, described backlight diffuser plate be used for offside always light carry out scattering with uniform illumination LCDs, also comprise: a light collector, the side at the illumination window place of described light collector connects with the side of described backlight diffuser plate;
Described light collector, for collecting surround lighting, imports the side direction of described backlight diffuser plate by the surround lighting collected.
Wherein, described light collector comprises a box body, and the end face of described box body is Unidirectional transparent film, or the end face of described box body is coated with Unidirectional transparent film; Described box body side is transparent illumination window, and other sides of described box body and the inwall of bottom surface are coated with the inside reflective material layer of reflective surface.
Wherein, described backlight source module can comprise one or more light collector, and the side at the transparent illumination window place of each light collector connects with a side of described backlight.
As shown in Figure 5, on the right side of Fig. 5 top shadow region be LCD screen, the below of LCD screen is backlight, and described backlight comprises a backlight diffuser plate, for offside always light carry out scattering with uniform illumination screen.The left side of Fig. 5 is the distinctive light collector of the present invention.At the upper surface of light collector, be coated with above-mentioned direct transmission-regular reflection film, the bottom of film is the cavity of an inner transparent.In the illumination window that the right side of this cavity is transparent, all the other several surfaces are then fully reflecting surfaces.This backlight source module by come from top surround lighting, after entering inside cavity through Unidirectional transparent film, due to the Unidirectional transparent characteristic of film, light cannot inject to the external world again, by the inwall interreflection of cavity, and finally can only inject to backlight diffuser plate from the right side of cavity, illuminate LCD screen.
Above-mentioned backlight source module directly collects surround lighting, imports the backlight side of transmission liquid crystal screen, strengthens backlight intensity.This backlight without the need to consuming any electricity, and can increase backlight intensity along with the enhancing of surround lighting automatically, improves the display effect of screen.
Fig. 6 is the panel computer schematic diagram of a band LCD display, light collector has been installed for collecting surround lighting in the side of LCD display, after increasing surround lighting collecting function, compare with traditional LCD screen, although sacrifice the space of a part of screen, but the ultra-traditional equipment far away of the LCD screen display effect out of doors under high light, has very strong practical value.
Be example according to an actual LCDs containing surround lighting collecting function below, the present invention is conducted further description.
Suppose that light collector is one block of rectangular parallelepiped glass, upper surface covers Unidirectional transparent film, and the lenslet diameter on Unidirectional transparent film is 200um, and transparency window (circle) diameter on Unidirectional transparent film is 40um.The reflectivity of the reflectorized material of the reflection side of Unidirectional transparent film is 90%, and the absorptivity of the lenticule medium of the transmissive side of Unidirectional transparent film is 10%, and the reflectivity of micro-lens surface is 10%, and lenticular light path loss is 10%;
The ratio calculated from the light traverses transparency window arrival reflection side of transmissive side is:
0.9*0.9*0.9＝73％；
Calculating the ratio that the useful area of reflectorized material accounts for reflection side is:
1-(1/4*pi*40*40)/(1/4*pi*200*200)＝96％；
Macroscopical reflectivity of computational reflect side is:
96％*90％＝86％；
Suppose that the area of the upper surface of light collector is 10cm*5cm, thickness is 0.5cm, and ambient light is the high light (being equivalent to the direct sunlight at fine day noon) of 100000lux;
The luminous flux then projected from upper surface is:
100000*(0.1*0.05)＝500lm；
Surround lighting passes through Unidirectional transparent film, and the luminous flux entering light collector inside is:
500lm*73％＝365lm；
Enter the light of light collector inside, absorbed by glass-reflected and penetrate from the transparent illumination window of side.If light collector side (area is 10cm*0.5cm) is transparent illumination window, the transmissivity of transparency window is 90%, reflectivity is 10%, macroscopical reflectivity of the reflection side of known Unidirectional transparent film is 86%, the Absorption of Medium rate of each fully reflecting surface of light collector is 10%, and reflectivity is 90%;
Suppose that the inner illumination of light collector is x, then the luminous flux of light collector each Surface absorption inner is:
Upper surface: (0.1*0.05) * (1-86%) * x=0.0007*x;
Lower surface: (0.1*0.05) * (1-90%) * x=0.0005*x;
The side at transparent illumination window place: 0.1*0.005*90%*x=0.00045*x;
Its excess-three side has altogether:
(0.05*0.005*2+0.1*0.005)*10％*x＝0.0001*x；
Therefore, the luminous flux of light collector each Surface absorption inner altogether: 0.0007*x+0.0005*x+0.00045*x+0.0001*x
Separate following equation:
0.0007x+0.0005x+0.00045x+0.0001x＝365lm
The illumination x that can obtain light collector inside that solves an equation is:
X=208571 lux;
When the illumination of light collector inside is 208571 lux, the illumination of far super external environment condition more than one times.
Luminous flux through transparent illumination window is:
208571* (0.1*0.005) * 90%=94 lumen;
According to the efficiency estimation of about every watt of 100 lumens of current white light LEDs, 94 lumens are about as much as the LED backlight of a 1W.
This, from 94 lumen of light flux of surround lighting collecting region, scatters to screen surface by the backlight diffuser plate of lcd screen, estimates with efficiency 90%, and suppose that the area of lcd screen is 10cm*10cm, the illumination being equivalent to backlight adds:
94*90％/(0.1*0.1)＝8460lux；
For desirable diffuse scattering surface, lux/ circular constant=nit, we are with being similar to the uniform light thought on screen to all angles injection, and therefore, corresponding screen intensity adds:
8460/3.14＝2694nit；
Namely screen intensity adds 2694 nanoteslas.
Due to general LCD display, screen backlight brightness is only about 500 nanoteslas, and the brightness of increase is very huge relative to original backlight.For screen reflecting only 5% display screen, list contrast as follows:
Visible, have the LCDs of surround lighting collecting function, under periods of direct sunlight, backlight illumination is ordinary screen more than six times, and contrast promotes 130%, and therefore, the visibility of screen is greatly improved.
A kind of Unidirectional transparent film that above-described embodiment provides, light collector and backlight source module, the Unidirectional transparent film (direct transmission-regular reflection film) utilizing micro lens technology to make, the major part of the light coming from (transmissive side) above Unidirectional transparent film can be allowed to penetrate self, and the major part of the light coming from (reflection side) below Unidirectional transparent film is reflected back, utilize the light collector of this Unidirectional transparent film production to collect surround lighting and penetrate from the transparent illumination window of light collector side, be integrated with the backlight source module of this light collector, light collector can be utilized to collect surround lighting and import backlight diffuser plate, illuminate LCDs, therefore described backlight source module can under the prerequisite not increasing backlight power consumption, improve the backlight illumination of transmission liquid crystal screen, be lifted at the screen visibility under outdoor high light.
The all or part of step that one of ordinary skill in the art will appreciate that in said method is carried out instruction related hardware by program and is completed, and described program can be stored in computer-readable recording medium, as ROM (read-only memory), disk or CD etc.Alternatively, all or part of step of above-described embodiment also can use one or more integrated circuit to realize, and correspondingly, each module/unit in above-described embodiment can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
It should be noted that; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art can make various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by the present invention.
Claims (12)
1. a Unidirectional transparent film, is characterized in that, comprising: a transparency carrier, comprises upper surface and lower surface;
The upper surface of described transparency carrier is coated with microlens array, and the lenticule in described microlens array is convex lens;
The lower surface of described transparency carrier is coated with reflective material layer, described reflective material layer is for reflecting light incident below described Unidirectional transparent film, the described reflective material layer position corresponding with each lenticular center has transparency window, and light incident above described Unidirectional transparent film to converge in described transparency window and through described reflective material layer.
2. Unidirectional transparent film as claimed in claim 1, is characterized in that:
Each transparency window is positioned on corresponding lenticular focal plane.
3. Unidirectional transparent film as claimed in claim 1, is characterized in that:
Described lenticular shape is circular, square or regular hexagon.
4. the Unidirectional transparent film according to any one of claim 1-3, is characterized in that:
Described microlens array dense arrangement, connects between adjacent lenticule.
5. the Unidirectional transparent film according to any one of claim 1-3, is characterized in that:
The area of described transparency window is less than 1/3 of corresponding lenticule clear field.
6. the Unidirectional transparent film according to any one of claim 1-3, is characterized in that:
Described Unidirectional transparent film is mantle or dura mater.
7. a light collector, is characterized in that, comprises the transparent body,
The end face of the described transparent body covers the Unidirectional transparent film according to any one of claim 1-6, and the described transparent body is except a side, and other surfaces are all coated with the inside reflective material layer of reflective surface.
8. light collector as claimed in claim 7, is characterized in that:
The described transparent body is rectangular parallelepiped.
9. a light collector, is characterized in that, comprises a box body,
The end face of described box body is the Unidirectional transparent film such as according to any one of claim 1-6, or the end face of described box body is coated with the Unidirectional transparent film according to any one of claim 1-6;
Described box body side is transparent illumination window, and other sides of described box body and the inwall of bottom surface are coated with the inside reflective material layer of reflective surface.
10. light collector as claimed in claim 9, is characterized in that:
Described tray interior is air or other transparent mediums.
11. 1 kinds of backlight source module, comprise backlight, described backlight comprises a backlight diffuser plate, described backlight diffuser plate be used for offside always light carry out scattering with uniform illumination LCDs, it is characterized in that, also comprise: light collector as claimed in claim 7 or 8, the side not covering reflective material layer of described light collector connects with the side of described backlight diffuser plate;
Described light collector, for collecting surround lighting, imports the side direction of described backlight diffuser plate by the surround lighting collected.
12. 1 kinds of backlight source module, comprise backlight, described backlight comprises a backlight diffuser plate, described backlight diffuser plate be used for offside always light carry out scattering with uniform illumination LCDs, it is characterized in that, also comprise: the light collector as described in claim 9 or 10, the side at the illumination window place of described light collector connects with the side of described backlight diffuser plate;
Described light collector, for collecting surround lighting, imports the side direction of described backlight diffuser plate by the surround lighting collected.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410397961.0A CN105334554A (en) | 2014-08-13 | 2014-08-13 | One-way light transmitting film, light collector and backlight source module |
| PCT/CN2014/088903 WO2015154413A1 (en) | 2014-08-13 | 2014-10-20 | One-way transmitting film, light collector and backlight source module |
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| CN201410397961.0A CN105334554A (en) | 2014-08-13 | 2014-08-13 | One-way light transmitting film, light collector and backlight source module |
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| WO (1) | WO2015154413A1 (en) |
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| CN106814497A (en) * | 2017-01-19 | 2017-06-09 | 京东方科技集团股份有限公司 | A kind of semi-transparent semi-reflecting display panel and preparation method thereof, display device |
| CN107479315A (en) * | 2016-06-08 | 2017-12-15 | 深圳市光峰光电技术有限公司 | A kind of movie theatre viewing system |
| CN112967588A (en) * | 2021-02-07 | 2021-06-15 | 中山职业技术学院 | Light response label |
| CN113504589A (en) * | 2021-07-27 | 2021-10-15 | 昆山金运新材料科技有限公司 | One-way light-transmitting film and manufacturing method thereof |
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| CN103424813A (en) * | 2012-05-21 | 2013-12-04 | 鸿富锦精密工业（深圳）有限公司 | Light adaptor and light signal transmission device |
| US20150192707A1 (en) * | 2012-07-13 | 2015-07-09 | Saint-Gobain Glass France | Transparent element with diffuse reflection comprising a sol-gel layer |
| CN103836523A (en) * | 2012-11-20 | 2014-06-04 | 华为终端有限公司 | Display device and backlight module thereof |
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| CN106814497A (en) * | 2017-01-19 | 2017-06-09 | 京东方科技集团股份有限公司 | A kind of semi-transparent semi-reflecting display panel and preparation method thereof, display device |
| US10409107B2 (en) | 2017-01-19 | 2019-09-10 | Boe Technology Group Co., Ltd. | Semi-transmissive, semi-reflective display panel and method of manufacturing the same and display device |
| CN112967588A (en) * | 2021-02-07 | 2021-06-15 | 中山职业技术学院 | Light response label |
| CN113504589A (en) * | 2021-07-27 | 2021-10-15 | 昆山金运新材料科技有限公司 | One-way light-transmitting film and manufacturing method thereof |
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| WO2015154413A1 (en) | 2015-10-15 |
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