CN102998841B - Display substrate and display device with display substrate - Google Patents
Display substrate and display device with display substrate Download PDFInfo
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- CN102998841B CN102998841B CN201210564717.XA CN201210564717A CN102998841B CN 102998841 B CN102998841 B CN 102998841B CN 201210564717 A CN201210564717 A CN 201210564717A CN 102998841 B CN102998841 B CN 102998841B
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Abstract
The invention provides a display substrate and a liquid crystal display device adopting the substrate. The display substrate has an optical scattering structure on the substrate, wherein the optical scattering structure is used for scattering the incident light rays emitted by a backlight source and allowing the light rays to enter the display substrate; and the optical scattering structure comprises at least one of a light diffusion film layer, scattered particles and optical patterns. Compared with the prior art, the display substrate has the advantages that at least one optical film in a diffusion film or a light guide plate in the backlight module can be saved, the integration of the liquid crystal display is improved, the thinning of the liquid crystal display can be realized, and the cost of the liquid crystal display is reduced.
Description
Technical field
The present invention relates to display technique field, particularly relate to a kind of display base plate and the display device with this display base plate.
Background technology
Liquid crystal display is widely used in the various aspects of daily life, use the product of liquid crystal display too numerous to enumerate, in small size application aspect, such as mobile terminal is as mobile phone, music player, palm PC (Personal Digital Assistant, PDA) etc.; Such as, in large scale application aspect, display, LCD TV etc.Liquid crystal display is the important component part of these products.
Liquid crystal due to liquid crystal display does not have directly luminous function, therefore additionally must provide backlight module at the back side of liquid crystal display.LCDs and backlight module are two independently elements.Backlight module, is generally by light source and the servicing unit arranged in order from light source, comprises light guide plate, diffusion sheet, prism film etc.The function of light guide plate is that the irregular light sent by light source guides into and disperses to display direction.The function of diffusion sheet is then the light through light guide plate is done scattering process, to reach atomizing effect.The light be diffused then is gathered in the direction of normal to screen by prism film, to increase the front brightness of screen, thus can produce image limpid in sight.
In down straight aphototropism mode set, diffusion sheet is placed in above light source, and light, through diffusion sheet scattering, successively by prism film, brightness enhancement film, rises partially through polaroid, is irradiated on liquid crystal display.In side entrance back module, light source is placed in the one or both sides of light guide plate, and light enters light guide plate from the side, in the upper surface outgoing of light guide plate, by diffusion sheet, prism film and brightness enhancement film, rises partially, be irradiated on liquid crystal display through polaroid.
With reference to Fig. 1, for the schematic cross-section (upper substrate is not shown) of traditional liquid crystal display panel, this conventional liquid crystal is side entrance back mode, comprises liquid crystal layer 101, display base plate 102, polaroid 103, prism film 104, diffusion sheet 105, light guide plate 106.The liquid crystal display of direct-insert backlight mode can omit light guide plate 106.The design of multi-layer optical membrane in conventional liquid crystal, the thickness of detector not only prepared is comparatively large, and cumbersome, causes cost to increase and efficiency reduction, also easily causes defect in assembling process.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of display base plate, can make and use the display device integral thickness reduction of this display base plate, weight saving, structure simple.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of display base plate, described display base plate has optical scattering structure, and described optical scattering structure injects described display base plate for the incident ray dispersion making backlight send.
Above-mentioned optical scattering structure comprises at least one in light diffusion film layer, scattering particle, optical design, in the light incident surface that wherein said light diffusion film layer is arranged on described display base plate and/or inner interlayer, described scattering particle is scattered in described substrate, and described optical design is distributed on the light incident surface of described substrate.
Above-mentioned scattering particle comprises at least one in inorganic particles, organism particle, metallics, composite particles, hollow hole.
Above-mentioned optical design comprises at least one in stipple pattern, candy strip and concaveconvex structure.
At least one deck prism array structure is also provided with in the light exit surface of aforesaid substrate and/or inner interlayer.
The xsect of the rib of above-mentioned prism array structure is serrate or waveform or random protruding figure.
The light exit surface of above-mentioned prism array structure is provided with protective clear layer.
The refractive index of above-mentioned protective clear layer is less than the refractive index of described prism array structure.
The present invention also provides a kind of display device, comprises above-mentioned display base plate.
Display base plate provided by the invention, has optical scattering structure, can omit diffusion sheet or light guide plate wherein at least one blooming piece, can make and use the display device integral thickness reduction of this substrate, weight saving, structure simple.
Accompanying drawing explanation
Fig. 1 is the structural representation of display panels in prior art;
The structural representation of the display base plate that Fig. 2 provides for embodiments of the invention one;
The structural representation of the display base plate that Fig. 3 provides for embodiments of the invention two;
The structural representation of the display base plate that Fig. 4 provides for embodiments of the invention three;
The structural representation of the display base plate that Fig. 5 provides for embodiments of the invention four;
The structural representation of the display base plate that Fig. 6 provides for embodiments of the invention five;
The structural representation of the display base plate that Fig. 7 provides for embodiments of the invention six;
The structural representation of the display base plate that Fig. 8 provides for embodiments of the invention seven.
Embodiment
In order to make the object of the embodiment of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment and accompanying drawing, the embodiment of the present invention is elaborated.At this, illustrative examples of the present invention and illustrating for explaining the present invention, but not as a limitation of the invention.
Technical scheme of the present invention provides a kind of display base plate, and described display base plate has optical scattering structure, and described optical scattering structure injects described display base plate for the incident ray dispersion making backlight send.
Wherein, described optical scattering structure is not limited to only utilize scattering process that incident ray is disperseed to enter the structure of described display base plate more equably, also comprise have refraction, reflex other can play the optical texture making incident ray enter described display base plate more equably, be referred to as optical scattering structure.
Particularly, described optical scattering structure comprises at least one in light diffusion film layer, scattering particle, optical design, in the light incident surface that wherein said light diffusion film layer is arranged on described display base plate and/or inner interlayer, described scattering particle is scattered in described substrate, and described optical design is distributed on the light incident surface of described substrate.
Hereafter 2 will describe embodiment one in detail with reference to the accompanying drawings.
The display substrate structure schematic diagram that Fig. 2 provides for embodiment one, the display base plate that the present embodiment provides can be applicable to display panels, understands in Fig. 2 other part-structures that also show this display panels for convenience.This display panels comprises upper substrate (not shown) and liquid crystal layer 201, display base plate 202, polaroid 203, prism film 204, light guide plate 205 as shown in Figure 2.
Wherein, the display base plate that the embodiment one that display base plate 202 is the claimed display base plate of the present invention provides, the light incident surface of display base plate 202 is provided with light scattering rete 2021.The light be incident in display base plate 202 is extended to evenly by scattering process or close to uniform face light, reaches atomizing effect by described light scattering rete 2021.
Light is by propagating in display base plate 202 after light guide plate 205 forming surface light source, due to the effect of light scattering rete 2021, light outgoing from substrate more equably after atomization, light, successively through prism film 204, polaroid 203, is changed by phase place after liquid crystal layer 201 and polarization state.Controlled the retardation of liquid crystal layer by the electrode effect between upper and lower display base plate, and then control passing through of light, make display produce light and shade change, realize Presentation Function.
Alternatively, the position of light scattering rete 2021 is not limited to the light incident surface at display base plate 202, can also be arranged in the inside interlayer of display base plate 202, and the quantity of light scattering rete 2021 is also not limited to one deck, all can arrange in the light incident surface of display base plate and inner interlayer, in this no limit.
Light scattering rete is provided with in the light incident surface of the display base plate that the present embodiment provides and/or inner interlayer.Shown light scattering rete can substitute the diffusion sheet in backlight module, to reach the object omitting diffusion sheet in display base plate.Owing to eliminating one deck blooming piece, such that the thickness of liquid crystal display reduces, weight saving, structure simplify.Be to be noted that in above-described embodiment that being applied in liquid crystal display device by above-mentioned display base plate is only the restriction of preferred embodiment and non-corresponding scope.
Hereafter 3 will describe embodiment two in detail with reference to the accompanying drawings.
The display substrate structure schematic diagram that Fig. 3 provides for embodiment two, the display base plate that the present embodiment provides can be applicable to display panels, understands in Fig. 3 other part-structures that also show this display panels for convenience.This display panels comprises upper substrate (not shown) and liquid crystal layer 301, display base plate 302, polaroid 303, prism film 304, light guide plate 305 as shown in Figure 3.
Wherein, the display base plate that the embodiment one that display base plate 302 is the claimed display base plate of the present invention provides, display base plate 302 inner dispersion has scattering particle 3021.The light be incident in display base plate 302 to be extended to evenly by the optical scattering effect of microscopic particle or close to uniform face light, to reach atomizing effect by scattering particle 3021.
Light propagates in substrate 302 by light guide plate 305, due to the effect of scattering particle 3021, to be formed evenly or close to uniform face light.Light through prism film 304, polaroid 305, is changed by phase place after liquid crystal layer and polarization state successively.Controlled the retardation of liquid crystal layer by the electrode effect between upper and lower display base plate, and then control passing through of light, make display produce light and shade change, realize Presentation Function.
Alternatively, the material of scattering particle 3021, shape and distribution density can be regulated according to light source position, make light can fully diffuse to whole display plane.Scattering particle 3021 can be at least one in inorganic particles, organism particle, metallics, composite particles, hollow hole, comprises the various scattering particles that in current backlight, scatter plate uses.The concrete material of scattering particle 3021, shape and distribution density is not limited, as long as the effect of better diffusing light can be obtained in the present embodiment.The position of described scattering particle 3021 is not limited to the light exit surface of display base plate, also can be arranged in the inside interlayer of display base plate.
The display base plate inner dispersion that the present embodiment provides has scattering particle.Therefore display base plate can substitute the diffusion sheet in backlight module, reaches the object omitting diffusion sheet.Owing to eliminating one deck blooming piece, such that the thickness of liquid crystal display reduces, weight saving, structure simplify.Be to be noted that in above-described embodiment that being applied in liquid crystal display device by above-mentioned display base plate is only the restriction of preferred embodiment and non-corresponding scope.
Hereafter 4 will describe embodiment three in detail with reference to the accompanying drawings.
The display substrate structure schematic diagram that Fig. 4 provides for embodiment three, the display base plate provided for the present embodiment can be applicable to display panels, understands in Fig. 4 other part-structures that also show this display panels for convenience.This display panels comprises upper substrate (not shown) and liquid crystal layer 401, display base plate 402, polaroid 403, prism film 404, diffusion sheet 405 as shown in Figure 4.
Wherein, the display base plate that the embodiment one that display base plate 402 is the claimed display base plate of the present invention provides, display base plate 402 light incident surface is distributed with optical design 4021.Optical design 4021 and display base plate 20 are structure as a whole.Optical design 4021, by optical reflection effect, by the light conduction of display base plate dipped beam end to the distance light end of display base plate, makes the light of the backlight of side entering type or other modes can be extended to uniform area source by line or pointolite.。
Light sends in backlight, due to the reflex of optical design 4021, light can be propagated to distance light end to the dipped beam end by display base plate, be extended to uniform area source.Light through diffusion sheet 405, prism film 404, polaroid 403, is changed by phase place after liquid crystal layer and polarization state successively.Controlled the retardation of liquid crystal layer by the electrode effect between upper and lower display base plate, and then control passing through of light, make display produce light and shade change, realize Presentation Function.
Alternatively, the material of optical design 4021, shape and distribution density can be regulated according to light source position, make light fully conduct on the exiting surface of substrate.Optical design 4021 can be the various optical designs that in the current backlight such as concaveconvex structure, site, striped, light guide plate uses, and does not limit its shape and distribution.
The display base plate that the present embodiment provides is provided with optical design away from the surface of liquid crystal layer.Therefore display base plate can substitute the light guide plate in backlight module, reaches the object omitting light guide plate.Owing to eliminating one deck blooming piece, such that the thickness of liquid crystal display reduces, weight saving, structure simplify.Be to be noted that in above-described embodiment that being applied in liquid crystal display device by above-mentioned display base plate is only the restriction of preferred embodiment and non-corresponding scope.
Hereafter 5 will describe embodiment four in detail with reference to the accompanying drawings.
The display substrate structure schematic diagram that Fig. 5 provides for embodiment four, the display base plate that the present embodiment provides can be applicable to display panels, understands in Fig. 5 other part-structures that also show this display panels for convenience.This display panels comprises upper substrate (not shown) and liquid crystal layer 501, display base plate 502, polaroid 503, light guide plate 504 as shown in Figure 5.
Wherein, the display base plate that the embodiment one that display base plate 502 is the claimed display base plate of the present invention provides, the light exit surface side of display base plate 502 arranges prism array structure 5021.Display base plate 502 inner dispersion has scattering particle 5022.Prism array structure 5021 and display base plate 502 are structure as a whole, and the light from external incident is guided into the direction perpendicular to display surface.The light be incident in display base plate 502 is extended to evenly by scattering process or close to uniform face light, reaches atomizing effect by scattering particle 5022.The present embodiment is identical with the scattering particle in embodiment two, and difference is, the surface of described display base plate light outgoing is provided with prism array structure.
Light is propagated into by light guide plate 504 and is transmitted to distance light end by dipped beam end, enter in display base plate 502 after forming surface light source, make area source be tending towards even by scattering particle 5022, then light is concentrated on the direction perpendicular to display surface by prism array structure 5021.Then light is through polaroid 503, is changed by phase place after liquid crystal layer and polarization state.Liquid crystal display relies on the electrode effect between upper display base plate to control the retardation of liquid crystal layer, and then controls passing through of light, makes display produce light and shade change, realizes Presentation Function.
Alternatively, described prism array structure 5021 is not limited to only have one deck, also can have multilayer prism array structure, play the effect of multiple blast.
Alternatively, shape and the distribution density of prism array structure 5021 can be regulated according to light source position, on the direction that light can fully be gathered perpendicular to display surface.The shape of prism array structure 5021 can be the shape of the prism array structure that may adopt in all prism films such as those skilled in the art serrate, waveform or the random protruding figure known.The concrete shape of prism array structure 5021 is not limited in the present embodiment.
Alternatively, the light exit surface of prism array structure 5021 can also arranging protective clear layer, prism array structure 5021 can be prevented to be damaged, providing smooth surface for attaching blooming piece simultaneously.Transparency protected layer material comprises at least one in inorganic material, organic material, organic-inorganic composite material, it is appreciated of course that, do not limit the concrete material of protective clear layer in the present embodiment.Preferably, the refractive index of described transparency protected layer material is less than the refractive index of described prism array structure 5021, utilizes the refraction principle of light that emergent ray can be made more to concentrate on display direction.
In the present embodiment, display base plate is provided with prism array structure on the surface of light outgoing, has scattering particle in inner dispersion.Therefore display base plate can substitute prism film in backlight module and diffusion layer, reaches the object omitting prism film and diffusion layer.Owing to eliminating two-layer blooming piece, such that the thickness of liquid crystal display reduces, weight saving, structure simplify.Be to be noted that in above-described embodiment that being applied in liquid crystal display device by above-mentioned display base plate is only the restriction of preferred embodiment and non-corresponding scope.
Hereafter 6 will describe embodiment five in detail with reference to the accompanying drawings.
The display substrate structure schematic diagram that Fig. 6 provides for embodiment five, the display base plate that the present embodiment provides can be applicable to display panels, understands in Fig. 6 other part-structures that also show this display panels for convenience.This display panels comprises upper substrate (not shown) and liquid crystal layer 601, display base plate 602, polaroid 603, prism film 604 as shown in Figure 6.
Wherein, the display base plate that the embodiment one that display base plate 602 is the claimed display base plate of the present invention provides, display base plate 602 inner dispersion has scattering particle 6021.The light incident surface of display base plate 602 is provided with optical design 6022.The light be incident in display base plate 602 is extended to evenly by scattering process or close to uniform face light, reaches atomizing effect by scattering particle 6021.Optical design 6022, by optical reflection effect, by the light conduction of display base plate dipped beam end to the distance light end of display base plate, makes the light of the backlight of side entering type or other modes can be extended to uniform area source by line or pointolite.
The present embodiment is preferred embodiment embodiment two and embodiment three combined, and scattering particle 6021, optical design 6022 are identical with embodiment two, embodiment three respectively.
The display base plate inner dispersion that the present embodiment provides has scattering center, is being provided with optical design away from the surface of liquid crystal layer.Therefore display base plate 20 can substitute diffusion layer in backlight module and light guide plate, reaches the object omitting diffusion layer and light guide plate.Owing to eliminating two-layer blooming piece, such that the thickness of liquid crystal display reduces, weight saving, structure simplify.Be to be noted that in above-described embodiment that being applied in liquid crystal display device by above-mentioned display base plate is only the restriction of preferred embodiment and non-corresponding scope.
Hereafter 7 will describe embodiment six in detail with reference to the accompanying drawings.
The display substrate structure schematic diagram that Fig. 7 provides for embodiment six, the display base plate that the present embodiment provides can be applicable to display panels, understands in Fig. 7 other part-structures that also show this display panels for convenience.This display panels comprises upper substrate (not shown) and liquid crystal layer 701, display base plate 702, polaroid 703, diffusion layer 704 as shown in Figure 7.
Wherein, the display base plate that the embodiment one that display base plate 702 is the claimed display base plate of the present invention provides, the light exit surface of display base plate 702 is arranged prism array structure 7021, the light from external incident is guided into the direction perpendicular to display surface.The light incident surface of display base plate 702 is provided with optical design 7022, by optical reflection effect, by the light conduction of display base plate dipped beam end to the distance light end of display base plate, make the light of the backlight of side entering type or other modes can be extended to uniform area source by line or pointolite.Prism array structure 7021, optical design 7022 and display base plate 702 are structure as a whole.The present embodiment is identical with the optical design in embodiment two, and difference is, the surface of described display base plate light outgoing is provided with prism array structure.
The display base plate that the present embodiment provides is provided with prism array structure on the light exit surface, and light incident surface is provided with optical design.Therefore display base plate can substitute prism film in backlight module and light guide plate, reaches the object omitting prism film and light guide plate.Owing to eliminating two-layer blooming piece, such that the thickness of liquid crystal display reduces, weight saving, structure simplify.Be to be noted that in above-described embodiment that being applied in liquid crystal display device by above-mentioned display base plate is only the restriction of preferred embodiment and non-corresponding scope.
Hereafter 8 will describe embodiment seven in detail with reference to the accompanying drawings.
The display substrate structure schematic diagram that Fig. 8 provides for embodiment seven, the display base plate that the present embodiment provides can be applicable to display panels, understands in Fig. 8 other part-structures that also show this display panels for convenience.This display panels comprises upper substrate (not shown) and liquid crystal layer 801, display base plate 802, polaroid 803 as shown in Figure 8.
Wherein, the display base plate that the embodiment one that display base plate 802 is the claimed display base plate of the present invention provides, display base plate 802 light exit surface is provided with prism array structure 8011, the light from external incident is guided into the direction perpendicular to display surface.Display base plate 802 inner dispersion has scattering particle 8021, is extended to evenly by the light be incident in display base plate 802 or close to uniform face light, reaches atomizing effect by scattering process.Surface away from liquid crystal layer 801 is provided with optical design 803 to display base plate 802, the light be incident in display base plate 802 is transmitted to the surface of substrate near liquid crystal layer 801.
The present embodiment is preferred embodiment embodiment four and embodiment six combined, and prism array structure 8021, optical scattering structure 8022 and optical design 8023 are identical with in embodiment four, embodiment six.
The display base plate that the present embodiment provides is provided with prism array structure on the light exit surface, and inner dispersion has optical scattering structure, and light incident surface is provided with optical design.Therefore display base plate can substitute prism film, diffusion layer and the light guide plate in backlight module, reaches the object omitting prism film, diffusion layer and light guide plate.Owing to eliminating three layers of blooming piece, such that the thickness of liquid crystal display reduces, weight saving, structure simplify.Be to be noted that in above-described embodiment that being applied in liquid crystal display device by above-mentioned display base plate is only the restriction of preferred embodiment and non-corresponding scope.
In technique scheme, alternatively, light source can be light emitting diode (Light Emitting Diode, LED), cathode fluorescent tube (Cold Cathode Fluorescent Lamp, the backlight Ordinary Light Sources Have such as CCFL), does not limit its kind at this.And the position of light source can be straight-down negative or side entering type, comprise the various arrangement modes that light source in current backlight is common, wherein direct-type backlight can omit light guide plate.
Technique scheme has following beneficial effect: by array structure prism-integrated in display base plate, optical scattering structure or optical design wherein at least one, make display base plate possess the effect of scatter plate or light guide plate, on the basis not reducing its optical characteristics, effectively can reduce the integral thickness of liquid crystal display, weight reduction, simplification structure.
The present invention also comprises a kind of display device, comprises the display base plate protected in technique scheme.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as falling into protection scope of the present invention.
Claims (8)
1. a display base plate, is characterized in that,
Described display base plate has optical scattering structure, and described optical scattering structure injects described display base plate for the incident ray dispersion making backlight send,
Described optical scattering structure comprises at least one in light diffusion film layer, scattering particle, optical design, in the light incident surface that wherein said light diffusion film layer is arranged on described display base plate and/or inner interlayer, described scattering particle is scattered in described substrate, described optical design is distributed on the light incident surface of described substrate
Wherein, optical design is concaveconvex structure, site, striped, the optical design that namely in backlight, light guide plate uses.
2. display base plate as described in claim 1, it is characterized in that, described scattering particle comprises at least one in inorganic particles, organism particle, metallics, composite particles, hollow hole.
3. display base plate as claimed in claim 1, it is characterized in that, described optical design comprises at least one in stipple pattern, candy strip and concaveconvex structure.
4. display base plate as claimed in claim 1, is characterized in that, be also provided with at least one deck prism array structure in the light exit surface of described substrate and/or inner interlayer.
5. display base plate as claimed in claim 4, is characterized in that, the xsect of the rib of described prism array structure is serrate or waveform or random protruding figure.
6. display base plate as described in claim 4, is characterized in that, the light exit surface of described prism array structure is provided with protective clear layer.
7. display base plate as described in claim 6, it is characterized in that, the refractive index of described protective clear layer is less than the refractive index of described prism array structure.
8. a display device, is characterized in that, comprises the display base plate as described in any one of claim 1 ~ 7.
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| CN201210564717.XA CN102998841B (en) | 2012-12-21 | 2012-12-21 | Display substrate and display device with display substrate |
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| CN104280933A (en) | 2014-10-21 | 2015-01-14 | 京东方科技集团股份有限公司 | Display substrate, display panel and display device |
| CN104362171A (en) * | 2014-12-03 | 2015-02-18 | 京东方科技集团股份有限公司 | Organic electroluminescence display panel as well as manufacturing method thereof and display device |
| CN104536202A (en) | 2015-01-19 | 2015-04-22 | 京东方科技集团股份有限公司 | Display panel and display device |
| US20180354225A1 (en) * | 2015-12-28 | 2018-12-13 | 3M Innovative Properties Company | Article with microstructed layer |
| CN105954927A (en) * | 2016-06-13 | 2016-09-21 | 联想(北京)有限公司 | Liquid crystal display panel and electronic equipment |
| CN106534738A (en) * | 2016-12-07 | 2017-03-22 | 广东长虹电子有限公司 | Backlight module and TV set |
| CN108242454B (en) | 2016-12-23 | 2020-05-26 | 京东方科技集团股份有限公司 | Display substrate, preparation method thereof and display device |
| CN107357086A (en) * | 2017-08-15 | 2017-11-17 | 环球智达科技（北京）有限公司 | Down straight aphototropism mode set |
| CN109377871B (en) * | 2018-11-07 | 2021-01-22 | 合肥京东方光电科技有限公司 | Backlight module, manufacturing method thereof and display device |
| WO2020194719A1 (en) * | 2019-03-28 | 2020-10-01 | 堺ディスプレイプロダクト株式会社 | Liquid crystal display device |
| TWI764028B (en) * | 2019-08-06 | 2022-05-11 | 台煒有限公司 | High-penetration uniform light diffusion module |
| CN111489637B (en) | 2020-04-23 | 2022-11-25 | 京东方科技集团股份有限公司 | Display module and display device |
| CN112485941B (en) * | 2020-12-03 | 2022-03-08 | 惠州市华星光电技术有限公司 | Liquid crystal display panel and preparation method thereof |
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