CN201156136Y - Contrast strengthening film construction of display apparatus and display apparatus or screen applying the film construction - Google Patents
Contrast strengthening film construction of display apparatus and display apparatus or screen applying the film construction Download PDFInfo
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- CN201156136Y CN201156136Y CNU2008200620841U CN200820062084U CN201156136Y CN 201156136 Y CN201156136 Y CN 201156136Y CN U2008200620841 U CNU2008200620841 U CN U2008200620841U CN 200820062084 U CN200820062084 U CN 200820062084U CN 201156136 Y CN201156136 Y CN 201156136Y
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Abstract
The utility model provides a display device contrast-enhancing film structure, which comprises a transparent substrate (L1), and display light source rays enter from the back surface and exit from the front surface. A plurality of transparent geometric solid structures are arranged on the front surface of the transparent substrate (L1); each transparent geometric solid structure is provided with a display light source ray inlet and a display light source ray outlet; the inlet, the projected area of which is larger than the projected area of the outlet, is integrated with the front surface of the transparent substrate (L1); and a packing layer with low transparency or a non-transparent packing layer is filled in the gap between each two transparent geometric solid structures. The display device contrast-enhancing film structure can receive the light rays emitted by a display device, which enter through the inlet and intensively exit through the outlet, few outside light rays can enter into the screen of the display device and then are reflected out, and therefore the brightness of pixels is greatly reduced. In general, the display device contrast-enhancing film structure enhances the contrast of the display device and reduces the interference of environmental light on images, thus greatly improving the display effect of the display device, and moreover, the display device contrast-enhancing film structure can be superposed with most of other contrast-enhancing structures.
Description
Technical field:
The utility model is relevant with the diaphragm with raising display contrast, and is relevant with the display or the display screen that adopt this diaphragm.
Background technology:
The contrast performance of display is one of display performance index of paying much attention to of numerous producers and client.Contrast is exactly the ratio of (white) brightness of (black) when the darkest when same point is the brightest on the screen, specifically exactly white signal is subtracted each other in 100% and 0% saturation degree, again divided by 0% white value (0% white signal is exactly a black), resulting numeral.
Contrast is just from deceiving to white gradual change level.Ratio is big more, and from black just many more to white gradual change level, thereby color representation is abundant more.Contrast is very crucial to the influence of visual effect, and in general contrast is big more, and image is clear more eye-catching, and color is also distinct more gorgeous; And contrast is little, then can allow whole image all dusky.High-contrast all has very great help for sharpness, details performance, the gray-level performance of image.It is more obvious that details performance, sharpness and the high-speed moving object of product in some dark portion scenes that contrast is high shows advantage.From definition, two keys that improve contrast are exactly the brightness that improves white brightness and reduce black.
Can accomplish under the very bright situation that in the brightness of display at present the method that improves contrast mainly contains the optimization display drive method.The patent that is called plasma display system and its driving method as 1783183 of publication numbers, relate to a kind of plasma display system and driving method thereof, rising waveform and falling waveform are applied on the scan electrode in the reset cycle of first subdomain of frame by the controller handle, and during the cycle of keeping keeping after voltage is applied on the scan electrode first, when the very first time passes, falling waveform is applied on the scan electrode.Applied first keep voltage after, when second goes by, apply second and keep voltage to keeping electrode.It can reduce power consumption and can improve contrast, so that can show the image of high-contrast.Also just like 1797082 patents that are called liquid crystal display device and driving method thereof of publication number, a kind of display panels is disclosed, corresponding to a plurality of viewing areas of split image.The quantity of the lamp by consider covering the viewing area is set the quantity of split image.Thereby the mean flow rate of entire image and the mean flow rate of split image are compared the brightness that changes each split image according to this comparative result.To the light of each viewing area irradiation corresponding to different brightness.Therefore, dark split image shows secretlyer and shows the score and cut image and show brightlyer in a two field picture, thereby improves contrast.
The method that improves contrast mainly improves the structure of luminous or display element in addition.Be called plasma display and the patent of having used the image display system of this panel as 1889222 of publication numbers, by the laminate component that is made of light absorbing zone and reflection layer is dispersed in each discharge cell, reduce the order of reflection of light-emitting phosphor light beam, and the reflection horizon of visible light is set in the opposite side in the space that takes place with discharge, the brightness reduction is suppressed to Min., in plasma display, improves contrast and brightness.
The method that improves contrast mainly increases the performance that the increased functionality diaphragm improves display in addition.As 20060511 patents that are called optical compensating film, Polarizer and liquid crystal indicator of publication number, a kind of optical compensating film is provided and has had the Polarizer and the liquid crystal indicator of this optical compensating film, described optical compensating film has the optical anisotropic layer that supporter and the one deck at least on supporter are formed by the composition that contains liquid-crystal compounds, purpose is to reduce the light of liquid crystal indicator when black the demonstration and leaks, and improves contrast rating.
The utility model content:
The purpose of this utility model is in order to overcome above deficiency, to provide a kind of use easier, easier suitability for industrialized production, and cost more low energy improves display contrast's reinforcing membrane structure of the contrast of display greatly.
Another purpose of the present utility model is for strong display of a kind of contrast or display screen are provided.
The purpose of this utility model is achieved in that
The utility model provides a kind of display contrast's reinforcing membrane structure, comprises the L1 of printing opacity basic unit with a front surface and a rear surface, and display light source light is injected from the rear surface, penetrates from front surface; A plurality of transparent solid structures are arranged on the front surface of the above-mentioned printing opacity L1 of basic unit, single transparent solid structure has a display light source light light inlet and a display light source light light-emitting window, the light inlet projected area is greater than the projected area of light-emitting window, and the front surface of this light inlet and the L1 of printing opacity basic unit is connected as a single entity; And how much inclined-planes and/or the curved surface that comprise the connection light inlet that is positioned at this transparent solid structure periphery and light-emitting window; There are low transmission or light tight packed layer in space between the above-mentioned transparent solid structure.The refractive index of the material of transparent solid structure can be different from that fill around it low sees through or the refractive index of lighttight material or composite material.Make between two kinds of materials and form medium interface, when similar optical fiber, light are injected with low-angle, can not penetrate dielectric layer and process reflection continuation at internal communication.When the material refractive index of solid structure during greater than the refractive index of exterior material, there is an angle of total reflection, significantly reduce the loss of light.
Also comprise the L2 of another basic unit with a front surface and a rear surface in above-mentioned display contrast's reinforcing membrane structure, the rear surface of the light-emitting window of described transparent solid structure and the L2 of this printing opacity basic unit is bonding.
The above-mentioned L2 of another basic unit is transparent, or have at least and adjust display lighting color, reflective color, improve light penetration, electromagnetic screen (EMI), near infrared light are by (NIR-cut), and the neon characteristic light is by the blooming or the optical sheet of one of (Ne-cut) function.
The above-mentioned L1 of basic unit is transparent, or has the display lighting of adjustment color at least, and electromagnetic screen (EMI), near infrared light are by (NIR-cut), and the neon characteristic light improves the blooming or the optical sheet of one of luminous ray transmitance function by (Ne-cut).
Above-mentioned transparent solid mechanism has a height, and this height and above-mentioned light inlet, light-emitting window have been determined the geometric configuration of this transparent solid structure.The light inlet projected area is greater than the projected area of light-emitting window, allows how much inclined-planes of this transparent solid and/or the tangent line and the basic unit L1 plane of curved surface, has 90 ° of smaller angles of a ratio.
Above-mentioned bright dipping actinal surface is a curved surface.
Above-mentioned bright dipping actinal surface is the plane.
The front surface of the above-mentioned L2 of basic unit have two-layer above with the height refraction with hang down the refracting medium film and stack gradually the anti-reflection antireflective film system of formation.
The rear surface of the above-mentioned printing opacity L1 of basic unit have two-layer above with the height refraction with hang down the refracting medium film and stack gradually the anti-reflection antireflective film system of formation.
The front surface of the above-mentioned L2 of another basic unit has the coating with anti-dazzle function that astigmatic particle forms.
The special optical of transparent solid structure allows it become an optical texture of can leaded light, concentrating light to penetrate.The light process L1 of basic unit that the display light source sends injects the light inlet of transparent solid, can concentrate ejaculation together through boundary reflection and middle light near the light at light inlet edge.
In general, extraneous light can reduce the contrast of display.When extraneous light was incident upon display, meeting reflecting part light was to spectators, and this moment, the mutually plain brightness of 0% white signal just improved, and contrast is reduction just, was placed on open-air just being placed on as TV and did not feel clear in the room.Because the special tectonic of above-mentioned contrast reinforcing membrane, smaller and low on every side see through or light tight of light-emitting window, the part light of being injected by the external world can't enter on the display lighting device smoothly, has avoided extraneous light to reflex to spectators and reduce contrast on luminescent device.
This transparent solid structure has a height in addition, low see through or lighttight part also has equal height then, form the equally spaced arrangement of structure of one group of parallel similar " wall ", the anti-film of spying on of similar Minnesota Mining and Manufacturing Company, the light that surpasses certain angle then almost completely is blocked.With ground is surface level, and preferred structure was for should " wall " trend being horizontal direction, " wall " of cancellation vertical direction.Can inject ejaculation to the light in 90 ° ± 30 ° scopes of the special preferred vertical of display in addition, all the other are blocked; The horizontal direction full angle can be injected ejaculation.Then can reach broad angle of visibility, not influence use.
Above-mentioned single transparent solid structure has a display light source light light inlet and a display light source light light-emitting window, and above-mentioned bright dipping actinal surface is curved surface or plane.The contrast reinforcing membrane structure that with the curved surface is light-emitting window is intended to make light to disperse ejaculation by the curved surface light-emitting window, improves the visible angle of display.Or by curved surface light-emitting window convergence ejaculation, the brightness that improves display is as the lenticule brightness enhancement film.
The utility model display or display location are sent out display contrast's reinforcing membrane structure in imaging device to the dress between the user of display or display screen.
At least simultaneously there was air interface in it when above-mentioned contrast reinforcing membrane structure was installed.
When above-mentioned contrast reinforcing membrane structure was installed, one side utilized translucent adhesive or pressure sensitive adhesive and display to be bonded as one at least.
The L1 of printing opacity basic unit of above-mentioned contrast reinforcing membrane structure and/or the L2 of another printing opacity basic unit are the printing opacity optical texture of script display or display screen.
Different displays wants that the result of use that reaches is also different, then can both adjust, make up by two L1 of basic unit, L2 of this film.PDP display for example needs electromagnetic screen, near infrared light to end or the like function by, neon characteristic light, can be to simplify the production method of PDP optical filter by two the last formation of the L1 of basic unit, L2 function corresponding films of this film then.To the display that the needs height sees through, can be to reach requirement also by the last coating high transmittance film of the L1 of basic unit, L2, or the like.The production method of these functional membrane systems is all very ripe, as patent 200510021262.7,200510021263.1,200610021717.X, 200610022680.2, the 200710048369.X of the applicant's application.
The utility model display contrast reinforcing membrane structure can be accepted the light of the emission of display, enters from light inlet, and similar optical fiber is concentrated ejaculation from light-emitting window; And because light-emitting window is smaller, and the space between the above-mentioned transparent solid structure is filled with low transmission or lighttight material, and extraneous light is seldom gone into to inject indicator screen and is reflected, and reduces the brightness of dark pixel greatly.Comprehensively improved the display contrast, and reduced the interference of surround lighting, increased substantially the display effect of display, can superpose with the structure of other most of enhancing contrast ratio simultaneously, do not conflicted image.
Description of drawings:
Fig. 1 reaches the synoptic diagram (having omitted the L1/L2 of basic unit) of wherein a kind of structure of described packing material on every side for the transparent solid of the utility model display contrast reinforcing membrane.
Fig. 2 is that display light source light passes the light path synoptic diagram according to transparent solid structure of the present utility model.
Fig. 3 for extraneous light directive during according to transparent solid structure of the present utility model the part permeation parts by around described packing material stop.
Fig. 4 is the transparent solid structure of a utility model cross-sectional view.
Fig. 5 is the transparent solid structural perspective of the utility model.
Fig. 6 is the utility model display contrast reinforcing membrane structural representation.
Fig. 7 is another structural representation of the utility model display contrast reinforcing membrane.
Fig. 8 is the utility model display contrast reinforcing membrane structural representation again.
Fig. 9 is the utility model display contrast reinforcing membrane structural representation of glass/resin protection screen with LCD.
Figure 10 is the utility model display assembling perspective view.
Embodiment:
Embodiment 1:
Fig. 1～Fig. 6 has provided the structural representation of present embodiment 1.Referring to Fig. 1, Fig. 6, present embodiment 1 described contrast reinforcing membrane structure adopts the PET film of 180～200 μ m as the L1 of basic unit, apply photocuring or heat reactive resin, method with impression forms described transparent solid structure 12, the solid height is 175 μ m, light inlet 14 width are 75 μ m, and light-emitting window 11 width are 50 μ m, and length is grown to the basement membrane edge.Afterwards on the resin structure after the described curing, coating has the light-sensitive emulsion or the pressure sensitive adhesive of black dyes, PET film with 175um covers on it as the L2 of basic unit again, certain pressure compressive belt when utilize covering has the light-sensitive emulsion of dyestuff or pressure sensitive adhesive to go in the space between the above-mentioned transparent solid structure 12, it is solidify to form low light transmission at last or lighttight structure 13 (packed layer) is finished product.
Fig. 2 is that display light source light passes the light path synoptic diagram according to transparent solid structure of the present utility model.
Fig. 3 for extraneous light directive during according to transparent solid structure of the present utility model the part permeation parts by around described packing material stop.
Fig. 4 is the transparent solid structure of a utility model cross-sectional view.
Fig. 5 is the transparent solid structural perspective of the utility model.
Use the desk-top reflective spectral measure of the GSR-2 system of Beijing AoBoTai Science Co., Ltd, transmitance to this membrane structure is carried out actual transmission measurement, transmitance along the display light direction is about 65%, and be about 49% along the transmitance of extraneous light incident direction, coincide with the intended purposes of structural design.
This film is installed between the optical filter and teletron of PDP plasm TV, uses Japanese TopconSR-3A brightness photometer/YC meter the contrast of its display to be tested test result such as table 1.The laboratory is the darkroom, and ambient brightness is less than 0.01cd/cm
2
The contrast method of testing is the make-to-break ratio method of testing:
1. the contrast reinforcing membrane is not installed, shows complete white image, the brightness of former display is adjusted into about 120cd/cm
2
2. show complete black image, measure brightness.
3. the contrast reinforcing membrane is installed, and demonstration is complete white visual, the brightness of display is brought up to be about 120cd/cm
2
4. show complete black image, measure brightness.
Table 1
| Former display brightness (cd/cm 2) | Display brightness (cd/cm after the installation contrast reinforcing membrane 2) | |
| Complete white image | 119.5 | 120.8 |
| Complete black image | 0.095 | 0.032 |
Measurement result represents that former display contrast is approximately 1258: 1, and uses the contrast reinforcing membrane 3777: 1, and contrast has increased about three times.In addition, when being daily lamplight brightness, range estimation can see that the surface reflection of the display that uses the contrast reinforcing membrane is substantially weaker than display originally when indoor, illustrates that this contrast reinforcing membrane also has really to reduce the function of surround lighting to the influence of image.
As mentioned above, this contrast strengthens diaphragm by modes such as bonding or direct installations, be installed in the display element of display before, can improve the contrast of display, allow display have the function of resisting ambient light interference simultaneously.
Embodiment 2:
Fig. 7 has provided the structural drawing of present embodiment 2.Referring to Fig. 7, the contrast reinforcing membrane is similar to embodiment 1 in the present embodiment, and different is that L1 of basic unit and/or the L2 of basic unit have been carried out the optics improvement.At present the technology of comparative maturity is as using the vacuum magnetic-control sputtering coating technique, and the rear surface (L1-1) at front surface (L2-1) and/or the L1 of the L2 of basic unit forms high refracting medium material (as TiO
2, Nb
2O
5) with low refracting medium material (as SiO
2, MgF) the anti-reflection antireflecting film system that constitutes of film, can improve the transmitance of whole diaphragm, improve display brightness.Also can adopt the mode of accurate coating to form one deck anti-dazzle (AG) film, can be widely used in indoor display, eliminate the shadow that display mirrors reflects to form at the front surface of the L2 of basic unit.Simultaneously, also can adopt the combination of dual mode, the front surface of the L2 of basic unit forms one deck antiglare film, and anti-reflection antireflecting film system is plated in the rear surface of the L1 of basic unit.To satisfy the different needs of different occasions.
Embodiment 3:
Fig. 8 has provided present embodiment 3 figure.Referring to Fig. 8, the contrast reinforcing membrane is similar to embodiment 1 in the present embodiment, and different is that present embodiment has carried out the optics improvement at the part of the optical filter that is used for the PDP display.For realizing that electromagnetic screen (EMI), near infrared end (Ne-cut) by (NIR-cut) and neon characteristic light, have the coatings of electro-magnetic screen function or be copper mesh layers in formation of the rear surface of the L1 of basic unit or bonding portion functional membrane: L1-2, L1-3 has near infrared by ending the pigment application layer of function with the neon characteristic light; Perhaps L1-2 has near infrared by ending the pigment application layer of function with the neon characteristic light, and L1-3 has the coatings of electro-magnetic screen function or is copper mesh layers.Glass/the resin substrate of PDP display filter faces mutually with the front surface of the L2 of basic unit or pastes, or the L2 of basic unit also can be the glass/resin substrate of PDP optical filter.
This example also has other several functional membrane structural order mapping modes:
To be substrate as the structure among Fig. 6, coatings or copper mesh layers with electro-magnetic screen function are positioned at this substrate front surface (or rear surface), have near infrared by being positioned at this substrate rear surface (or front surface) with the neon characteristic light by the pigment application layer of function.And the glass/resin substrate of PDP display filter is positioned at the front of the membrane structure of this substrate front surface.
Or being substrate as the structure among Fig. 6, its front surface has the coatings or the copper mesh layers of electro-magnetic screen function and has near infrared by all being positioned at this substrate front surface with the neon characteristic light by the pigment application layer of function, and order can be changed arbitrarily before and after this two-layer functional membrane structure.The front of this two-layer film configuration is PDP display filter glass/resin substrate.
Embodiment 4:
Fig. 9 has provided present embodiment 4 figure.As shown in Figure 9, the contrast reinforcing membrane is similar to embodiment 1 in the present embodiment, and different the is L2-4 of basic unit is the glass/resin protection screen of LCD originally, and integral body has simple structure, simple installation, anti-characteristics such as smash.
Embodiment 5:
Figure 10 is present embodiment 5 figure.Figure 10 is the structural representation of a kind of LCD of the present utility model.TFT-LCD video picture panel 4 is not shown to the structure of inside.Above-mentioned contrast reinforcing membrane 1 is installed between glass/resin protection screen 2 and the TFT-LCD video picture panel 4, and panel shell 3 is protected mounted protection screen and video picture panel interior with shell 5.If contrast reinforcing membrane 1 is bonded in glass/resin protection screen 2 rear surfaces, then has the anti-function that smashes.Simultaneously, owing to reduced by an air interface, with bonding comparing not, the integral light-transmitting rate improves 2%.If contrast reinforcing membrane 1 is bonding with TFT-LCD video picture panel 4, also can continue to improve 2% transmitance.
The various embodiments described above are that foregoing of the present utility model is further described, but this should be interpreted as that the scope of the above-mentioned theme of the utility model only limits to the foregoing description.All technology that realizes based on foregoing all belong to scope of the present utility model.
Claims (14)
1, display contrast's reinforcing membrane structure, comprise the L1 of printing opacity basic unit with a front surface and a rear surface, display light source light is injected from the rear surface, penetrate from front surface, a plurality of transparent solid structures are arranged on the front surface of the described printing opacity L1 of basic unit, single transparent solid structure has a display light source light light inlet and a display light source light light-emitting window, the front surface of this light inlet and the L1 of printing opacity basic unit is connected as a single entity, and how much inclined-planes and/or the curved surface that comprise the connection light inlet that is positioned at this transparent solid structure periphery and light-emitting window, it is characterized in that the projected area of the light inlet projected area of described transparent solid structure greater than light-emitting window, there are low transmission or light tight packed layer in the space between the described transparent solid structure.
2, display contrast's reinforcing membrane structure as claimed in claim 1 is characterized in that also comprising the L2 of another basic unit, has a front surface and a rear surface, and the rear surface of the light-emitting window of described transparent solid structure and the L2 of this printing opacity basic unit is bonding.
3, display contrast's reinforcing membrane structure as claimed in claim 2, it is characterized in that the described L2 of another basic unit is transparent, or have at least adjust display lighting color, reflective color, improve light penetration, electromagnetic screen, near infrared light be by, neon characteristic light blooming or the optical sheet by one of function.
4, as claim 1 or 2 or 3 described display contrast's reinforcing membrane structures, it is characterized in that the described L1 of basic unit is transparent, or have at least adjust display lighting color, electromagnetic screen, near infrared light by, neon characteristic light by, improve the blooming or the optical sheet of one of luminous ray transmitance function
5, as claim 1 or 2 or 3 described display contrast's reinforcing membrane structures, it is characterized in that described transparent solid structure has a height, this height and above-mentioned light inlet, light-emitting window have been determined the geometric configuration of this transparent solid structure.
6, as claim 1 or 2 or 3 described display contrast's reinforcing membrane structures, it is characterized in that described bright dipping actinal surface is a curved surface.
7, as claim 1 or 2 or 3 described display contrast's reinforcing membrane structures, it is characterized in that described bright dipping actinal surface is the plane.
8, as claim 1 or 2 or 3 described display contrast's reinforcing membrane structures, the front surface that it is characterized in that the described L2 of basic unit have two-layer at least above with the height refraction with hang down the refracting medium film and stack gradually the anti-reflection antireflective film system of formation.
9, as claim 1 or 2 or 3 described display contrast's reinforcing membrane structures, the rear surface that it is characterized in that the described printing opacity L1 of basic unit have two-layer at least above with the height refraction with hang down the refracting medium film and stack gradually the anti-reflection antireflective film system of formation.
10,, it is characterized in that the front surface of the described L2 of another basic unit has the coating with anti-dazzle function that astigmatic particle forms as claim 2 or 3 described display contrast's reinforcing membrane structures.
11, display or display screen is characterized in that imaging device at display or display screen between the user, installing a slice display contrast reinforcing membrane structure.
12, display as claimed in claim 11 or display screen, at least simultaneously there is air interface in it when it is characterized in that the installing of contrast reinforcing membrane structure.
13, as claim 11 or 12 described display or display screens, when it is characterized in that the installing of contrast reinforcing membrane structure, one side utilizes translucent adhesive or pressure sensitive adhesive and display to be bonded as one at least.
14,, it is characterized in that the L1 of printing opacity basic unit of contrast reinforcing membrane structure and/or the L2 of another printing opacity basic unit are the printing opacity optical texture of former display or display screen as claim 11 or 12 described display or display screens.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200620841U CN201156136Y (en) | 2008-01-31 | 2008-01-31 | Contrast strengthening film construction of display apparatus and display apparatus or screen applying the film construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200620841U CN201156136Y (en) | 2008-01-31 | 2008-01-31 | Contrast strengthening film construction of display apparatus and display apparatus or screen applying the film construction |
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| Publication Number | Publication Date |
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| CN201156136Y true CN201156136Y (en) | 2008-11-26 |
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| CNU2008200620841U Expired - Fee Related CN201156136Y (en) | 2008-01-31 | 2008-01-31 | Contrast strengthening film construction of display apparatus and display apparatus or screen applying the film construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI561900B (en) * | 2014-12-19 | 2016-12-11 | Ind Tech Res Inst | Optical film and display assembly applying the same |
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2008
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI561900B (en) * | 2014-12-19 | 2016-12-11 | Ind Tech Res Inst | Optical film and display assembly applying the same |
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Granted publication date: 20081126 Termination date: 20110131 |