CN204790248U - Visual display device under sunshine - Google Patents
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- CN204790248U CN204790248U CN201520433802.1U CN201520433802U CN204790248U CN 204790248 U CN204790248 U CN 204790248U CN 201520433802 U CN201520433802 U CN 201520433802U CN 204790248 U CN204790248 U CN 204790248U
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Abstract
The utility model provides a visual display device under sunshine, include: display screen and back of the body the light source device, the display screen includes first base plate and second base plate, be equipped with the liquid crystal materials layer between first base plate and the second base plate, first base plate, second base plate with all be equipped with the base plate rete between the liquid crystal materials layer, display device still includes the rotatory polarization lamella, the display screen sets up between rotatory polarization lamella and the back of the body the light source device. The utility model discloses an increase rotatory polarization lamella and wave plate layer in current display device structure, the rotatory polarization piece has the reflectance characteristics of subtracting, mainly is to carry out the reflecting curtain through the light to among the incident liquid crystal display device to can realize subtracting the reflection, when adopting the rotatory polarization piece, because the malus law emergent light can brightness decay, increase the wave plate layer and can promote emergent light luminance, realized that display device has visual effect under the splendid sunshine.
Description
Technical field
The utility model relates to a kind of liquid crystal indicator, display device visual under particularly relating to a kind of sunlight.
Background technology
Requirement visual under outdoor display device all possesses sunlight.These equipment comprise hand held mobile terminals series products, and such as mobile phone, GPS, POS, barcode scanning machine and outdoor advertisement machine, ATM, industrial computer series products, relate to face quite extensive.Existing main flow display technique is lcd technology (point active and passive type, active segmentation by TFT material comprises amorphous silicon (a-Si), low temperature polycrystalline silicon (LTPS), oxide semiconductor (Oxide)), organic light emission (OLED) display technique, quantum dot (Qdot) display technique mainly.Remain lcd technology at present and occupy absolute leading position.Through development for many years, lcd technology is progress constantly, and the key index such as resolution, brightness, visual angle of liquid crystal display all obtains great lifting.But it is low that lcd technology exists transmitance, color saturation is not enough, the problem that color rendition degree is not strong.In the sun due to strong reflected light, its visual effect becomes poorer.Universal particularly along with touch control operation mode, the display screen of terminal device often will attach contactor control device, and the sandwich construction of contactor control device has increased the weight of the degree of reflection of reflected light under sunlight, weakens display effect further, does not see displaying contents even completely.
Increase brightness to realize by promoting display screen aperture opening ratio or increasing backlight arrangement brightness, such as, under a kind of sunlight that patent CN201220560975 discloses visual-display screen, have employed this technology; Improving contrast by strengthening viewing effect according to the environmental light brightness dynamic adjustments picture contrast of sensing, showing unsharp method and system under the one that patent CN201210421627 discloses effectively solves display screen sunlight, just have employed such technology; The technology utilizing reflection is typically half reflection and half transmission formula (Transflective) lcd technology, and a part for each sub-pixel of display screen is designed to reflective by this technology, and other partial design become transmission-type.When applying under sunlight out of doors, reflecting part plays a major role, and the inside that reflected light can enter display screen becomes controlled light source, strengthens image display effect; Indoor or when applying night, transmissive portion plays a major role, utilize transmitted light to see displaying contents clearly.Under the sunlight of this technology, visual effect is with the obvious advantage, but because reflecting part occupies certain space, the more common display screen of aperture opening ratio of its transmissive portion is lower, when causing indoor or night to use, power consumption increases the weight of, and often design a new model and all need special design, again die sinking to make display screen, cost is higher, and model is less and expensive on the market.Therefore, by contrast, reducing reflection is the mode that under more common enhancing sunlight, visual effect uses, and the realization of anti-reflection technology is mainly at display device outside surface coated with antireflection film.What utilize due to antireflection is interfere the principle disappeared mutually, and need thicknesses of layers to meet the requirement of 0.25 times for anti-reflection wavelength, therefore single antireflection film is often only best to single wavelength effect, needs double-layer reflection reducing coating to realize good look neutral.In addition, best antireflection conditional request antireflection film material refractive index is the square root of incident medium and substrate refractive index product, in visible region if substrate glass refractive index is 1.52, require that antireflecting film refractive index is 1.23, the actual film lowest refractive index that can utilize is 1.28 (MgF2), is therefore difficult to realize zero reflection.A kind of anti-reflection structure that this type of technology such as patent CN201410042064 discloses and antireflective film, the preparation method of the cleaning anti-reflection coating that patent CN201110250081 discloses.In addition, full coating technique can also reduce reflection as a kind of supplementary means, although prior art reduction reflection to a certain degree can promote visual effect under sunlight, but being limited to antireflective film can not exact matching minimal reflection condition to the selectivity of wavelength and glue refractive index, its anti-reflection effect is unsatisfactory, usually only can reflectivity be controlled at 1-2%, be difficult to accomplish within 1%, effective contrast (the ECR of usual use, ECR=1+ display brightness/reflectance lightness), the power that this parameter is readable under characterizing sunlight, ECR is higher, high light readability is better, at least to ensure that ECR>5 is visual under just having reasonable sunlight.For outdoor brightness 10,000 nits, backlight illumination 400nits, ECR=1+400/ (10000*1%)=5, visual under reflectivity being controlled just to have an opportunity to make ECR>5 obtain reasonable sunlight below 1%.
Utility model content
The utility model proposes a kind of new method, by increasing rotatory polarization lamella in existing display device structure, rotatory polarization lamella has anti-reflection characteristic, can reduce sunlight reflection, thus make display device visual in the sun.
In order to realize above-mentioned technique effect, the technical solution adopted in the utility model is:
Display device visual under a kind of sunlight, wherein, comprise: display screen and backlight arrangement, described display screen comprises first substrate and second substrate, liquid crystal material layer is provided with between described first substrate and second substrate, described first substrate, substrate layer is equipped with between second substrate and described liquid crystal material layer, described backlight arrangement comprises light source, light guide section and reflection diaphragm group, the two ends that described light guide section is connected with reflection diaphragm group are respectively equipped with described light source, described display device also comprises rotatory polarization lamella, described rotatory polarization lamella covers described display screen upper surface.
Display device visual under above-mentioned a kind of sunlight, wherein, described display device also comprises wave plate layer, and described wave plate layer is arranged between described rotatory polarization lamella and display screen.
Display device visual under above-mentioned a kind of sunlight, wherein, described wave plate layer is quarter-wave lamella or 3/4ths wave plate layers.
Display device visual under above-mentioned a kind of sunlight, wherein, described display device also comprises contactor control device, and described contactor control device is arranged on outside described rotatory polarization lamella or is arranged between described wave plate layer and described rotatory polarization lamella or is arranged between described wave plate layer and display screen.
Display device visual under above-mentioned a kind of sunlight, wherein, described contactor control device surface is provided with the anti-reflection processing layer of antireflection.
Display device visual under above-mentioned a kind of sunlight, wherein, described rotatory polarization lamella comprises linear polarizer and wave plate.
Display device visual under above-mentioned a kind of sunlight, wherein, described wave plate is quarter-wave plate or 3/4ths wave plates.
Display device visual under above-mentioned a kind of sunlight, wherein, described display screen also comprises layer of polarizer, described upper layer of polarizer is located at outside described second substrate, described wave plate is quarter-wave plate, the light transmission shaft of described linear polarizer respectively with the optical axis of layer of polarizer light transmission shaft on described display screen and quarter-wave plate in angle of 45 degrees.
Display device visual under above-mentioned a kind of sunlight, wherein, the surface, linear polarizer side in described rotatory polarization lamella is coated with antireflection film.
Display device visual under above-mentioned a kind of sunlight, wherein, described substrate layer comprises array base palte rete and CF substrate layer, and described substrate layer is arranged between described first substrate and liquid crystal material layer, and described CF substrate layer is arranged between described second substrate liquid crystal material layer.
The utility model proposes a kind of new method, by increasing rotatory polarization lamella in existing display device structure, rotatory polarization sheet has anti-reflection characteristic and reduces reflected light further, further, according to the brightness decay that Malus law is introduced, again by increasing wave plate layer, failure line polarization characteristic promotes the anti-reflection of rotatory polarization lamella further.The utility model can reduce reflectivity further to less than 1%, and ensure that ECR>5 is visual under obtaining splendid sunlight, can ensure again the transmissivity of backlight arrangement, display device has splendid visual effect in the sun simultaneously.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, the utility model and feature, profile and advantage will become more obvious.Mark identical in whole accompanying drawing indicates identical part.Deliberately proportionally do not draw accompanying drawing, focus on purport of the present utility model is shown.
Fig. 1 is the sectional view of current liquid crystal indicator;
The sectional view of display device visual under a kind of sunlight that Fig. 2 provides for the utility model;
The sectional view of display device two kinds of different embodiments visual under a kind of sunlight that Fig. 3 a and Fig. 3 b provides for the utility model;
Fig. 4 a, Fig. 4 b and Fig. 4 c are the principle of work schematic diagram of display device visual under a kind of sunlight of the utility model;
Fig. 5 is the sectional view of the display device visual under a kind of sunlight in embodiment two of the utility model;
Fig. 6 a and Fig. 6 b is display device light path principle schematic diagram visual under a kind of sunlight of the utility model;
Fig. 7 is the sectional view of the display device visual under a kind of sunlight in embodiment three of the utility model;
Embodiment
In the following description, give a large amount of concrete details to provide to understand more thoroughly the utility model.But, it is obvious to the skilled person that the utility model can be implemented without the need to these details one or more.In other example, in order to avoid obscuring with the utility model, technical characteristics more well known in the art are not described.
In order to thoroughly understand the utility model, by proposing detailed step and detailed structure in following description, to explain the technical solution of the utility model.Preferred embodiment of the present utility model is described in detail as follows, but except these are described in detail, the utility model can also have other embodiments.
Fig. 1 shows the sectional view of a kind of liquid crystal indicator in prior art, comprises display screen 100, back lighting device 200, and the contactor control device 300 that display screen attaches above.Display screen 100 comprises first substrate 101, second substrate 107, array base palte multiple film layer 102, CF substrate multiple film layer 106, first both alignment layers 103, second both alignment layers 105, and liquid crystal material 104 is encapsulated between first substrate 101 and second substrate 107.
According to the many disadvantages of liquid crystal indicator in prior art, illustrate in the introduction, the display device that the utility model is visual under providing a kind of sunlight, with reference to shown in Fig. 2, do not mark display screen 100 same as the prior art and the composition of back lighting device 200 in fig. 2, can refer to shown in Fig. 1 of the prior art, under this kind of sunlight, visual display device mainly comprises: display screen 100 and back lighting device 200, display screen 100 comprises first substrate 101 and second substrate 107, liquid crystal material layer 104 is provided with between described first substrate 101 and second substrate 107, first substrate 101, substrate layer is equipped with between second substrate 107 and described liquid crystal material layer 104, described back lighting device 200 comprises light source 201, light guide section 202 and reflection diaphragm group 203, the two ends that light guide section 201 is connected with reflection diaphragm group 203 are respectively equipped with described light source 201, display device also comprises rotatory polarization lamella 400, rotatory polarization lamella 400 covers display screen 100 upper surface, that is display screen 100 is arranged between described rotatory polarization lamella 400 and back lighting device 200.The utility model by increasing rotatory polarization lamella 400 in existing display device structure, rotatory polarization lamella 400 has minimizing reflected light characteristic, reflected light can be reduced further, mainly by carrying out reflecting barrier to the light in incident liquid crystal indicator, the utility model can reduce reflectivity further to less than 1%, ensure that ECR>5 obtains under splendid sunlight visual, thus achieve display device there is splendid visual effect in the sun.In the utility model, display screen 100 in display device includes but not limited to liquid crystal and non-liquid crystal class display screen, which kind of display mode is not limited to is, display screen display mode common at present includes but not limited to VA type, IPS type, TN type etc., it is the backlight arrangement which kind of technology realizes that backlight arrangement in display device is not limited to, and includes but not limited to the illuminated or bottom lighting type backlight device in side etc.Luminophor can be CCFL can be also LED, comprise various white light LEDs (include but not limited to yellow fluorescent powder LED, red green fluorescence powder LED, RGB tri-LED of chip package, can be top emitting led also can be that limit is emitting led).In the utility model, be noted that especially, as long as display device increases rotatory polarization lamella 400 just can reach effect visual in the sun, if wherein increase one deck wave plate layer 500 in a display device again, visual effect in the sun can be improved further.
In the utility model one optional embodiment, display device also comprises wave plate layer 500, wave plate layer 500 is arranged between rotatory polarization lamella 400 and display screen 100, by increasing one deck wave plate layer 500 more in a display device in the utility model, wave plate layer 500 is arranged between rotatory polarization lamella 400 and display screen 100, can anti-reflection further, thus make display device obtain better visual effect in the sun.In the utility model, be noted that especially, as long as display device increases rotatory polarization lamella 400 just can reach effect visual in the sun, if wherein increase one deck wave plate layer 500 in a display device again, visual effect in the sun can be improved further, the polarisation intensity loss brought after mainly passing through to reduce introducing rotatory polarization lamella 400.
In the utility model one optional embodiment, display device also comprises contactor control device 300, contactor control device 300 is arranged on outside described rotatory polarization lamella 400 or is arranged between wave plate layer 500 and rotatory polarization lamella 400 or is arranged between wave plate layer 500 and display screen 100, display device in the utility model can increase one deck contactor control device 300, after increasing contactor control device 300, rotatory polarization lamella 400 and wave plate layer 500 have multiple installation site relative to contactor control device 300, relative to contactor control device 300, be respectively contactor control device 300 be arranged on outside described rotatory polarization lamella 400 or be arranged between wave plate layer 500 and rotatory polarization lamella 400 or be arranged between wave plate layer 500 and display screen 100, above different installation site can realize effect of the present utility model, preferred mount scheme is that rotatory polarization lamella 400 is placed on above contactor control device 300, the below being placed on contactor control device 300 of wave plate layer 500, as shown in Figure 3 b, preferred wave plate layer 500 is quarter-wave lamella, further anti-reflection more, wherein contactor control device 300 is not limited to is the touch-control module which kind of technology realizes, include but not limited to the type such as resistance-type and condenser type.Laminating type does not do restriction yet and can be GFF (CoverGlass+ITOFilm+ITOFilm, ITOFilm also can be 1 layer or two-sided), GG (CoverGlass+GlassSensor, ITO can be single or double), the various laminating type such as OGS (Oneglasssolution comprises the various method only realizing touch controllable function with individual glass).In the utility model, also to illustrate that in some display device, contactor control device 300 can increase as required or delete, directly not affect the beneficial effect visual in the sun that the utility model brings.
In the utility model one optional embodiment, contactor control device 300 surface is provided with the anti-reflection processing layer 301 of antireflection, increases the anti-reflection processing layer 301 of antireflection, sunlight reflection can be effectively reduced, strengthen transmission, promote display effect, include but not limited to the anti-reflection process of antireflection.
In the utility model one optional embodiment, rotatory polarization lamella 400 comprises linear polarizer 401 and wave plate, external reflection light forms line polarisation after inciding linear polarizer 401, dextrorotation is converted to again (or left-handed through wave plate, according to wave plate optical axis direction) circularly polarized light, this circularly polarized light is after each Rotating fields surface reflections such as contactor control device 300, wave plate layer 500, reflected light is converted to left-handed (or dextrorotation) circularly polarized light, this circularly polarized light is again converted to through wave plate and absorbs axle with linear polarizer 401 and cannot pass through in the same way, therefore can realize anti-reflective effect.
In the utility model one optional embodiment, wave plate is quarter-wave plate 3/402nds or four wave plate, preferred quarter-wave plate 402, external reflection light forms line polarisation after inciding linear polarizer 401, dextrorotation is converted to again (or left-handed through quarter-wave plate 402, according to quarter-wave plate optical axis direction) circularly polarized light, this circularly polarized light is after each Rotating fields surface reflections such as contactor control device 300, reflected light is converted to left-handed (or dextrorotation) circularly polarized light, this circularly polarized light is again converted to and absorbs axle with linear polarizer 401 and cannot pass through in the same way when quarter-wave plate 402, therefore anti-reflective effect can be realized, rotatory polarization lamella 400 wherein in display device can be combined by line polaroid 401 and quarter-wave plate 402, do not limit its concrete methods of realizing.Placement direction does not limit, layer of polarizer 108 light transmission shaft angle 45 ° on preferred rotatory polarization sheet linear polarization partial light permeability axle and display screen, shown in upper layer of polarizer 108 in FIG, wave plate layer 500 in display device can be the wave plate layer of various thickness, includes but not limited to quarter-wave lamella, 3/4ths wave plate layers.Preferred quarter-wave lamella, placement direction does not limit, layer of polarizer 108 light transmission shaft angle 45 ° on preferred optical axis and display screen.
In the utility model one optional embodiment, the light transmission shaft of linear polarizer 401 respectively with the optical axis of polaroid light transmission shaft on display screen 100 and quarter-wave plate 402 in angle of 45 degrees, as Fig. 6 a illustrate be display device external reflection light incident the utility model structure time optical path change principle, wherein rotatory polarization lamella 400, it is primarily of linear polarizer 401 and quarter-wave 402 two parts composition, in angle of 45 degrees, this kind of design display device has better visuality in the sun for the light transmission shaft of linear polarizer 401 and the optical axis of quarter-wave plate 402.
In the utility model one optional embodiment, the surface, linear polarizer 401 side in rotatory polarization lamella 400 is coated with antireflection film, and the surface, linear polarizer 401 side in rotatory polarization lamella 400 is coated with antireflection film, can realize the effect of antireflection.
In the utility model one optional embodiment, substrate layer comprises array base palte rete 102 and CF substrate layer 106, substrate layer 102 is arranged between first substrate 101 and liquid crystal material layer 104, and described CF substrate layer 106 is arranged between described second substrate 107 liquid crystal material layer 104.
3 specific embodiments are provided to be further elaborated with regard to the utility model below.
Embodiment one
The sectional view of display device visual under being illustrated in figure 2 a kind of sunlight of the utility model, in fig. 2, be respectively back lighting device 200 from the bottom to top, display screen 100, rotatory polarization lamella 400, by increasing rotatory polarization lamella 400 in existing display device structure, rotatory polarization lamella 400 has minimizing reflected light characteristic, mainly by carrying out reflecting barrier to the light in incident liquid crystal indicator, reflected light can be reduced further, the utility model can reduce reflectivity further to less than 1%, ensure that ECR>5 is visual under obtaining splendid sunlight, thus achieve display device there is splendid visual effect in the sun, in this embodiment, when display device visual under a kind of sunlight does not install contactor control device 300, display device has just lacked the function of touch-control, but in the sun there is visual effect too, do not affect original intention of the present utility model, wherein mainly by minimizing reflected light characteristic that rotatory polarization lamella 400 plays, realize the beneficial effects of the utility model.
Embodiment two
The sectional view of display device visual under being illustrated in figure 5 a kind of sunlight of the utility model, in its Fig. 5, be respectively from the bottom to top, back lighting device 200, display screen 100, wave plate layer 500, contactor control device 300, rotatory polarization lamella 400, in the present embodiment, layer of polarizer 108 light transmission shaft 0 ° on display screen 100.Rotatory polarization lamella 400 adopts linear polarizer+quarter-wave plate unitized construction, linear polarizer side plated surface antireflection film in rotatory polarization lamella 400, linear polarizer light transmission shaft 45 °, with layer of polarizer 108 light transmission shaft angle 45 ° on display screen 100.Wave plate layer 500 adopts quarter-wave lamella, layer of polarizer 108 light transmission shaft angle 45 ° (see Fig. 6) on optical axis and display screen 100, optical path change principle during the incident the utility model structure of what Fig. 6 a illustrated is display device external reflection light.Wherein 400 is rotatory polarization lamellas, its primarily of 401 linear polarizer and 402 quarter-wave 402 two parts composition, the light transmission shaft of linear polarizer 401 and the optical axis of quarter-wave plate 402 at 45 °.Optical path change principle when what wherein Fig. 4 a illustrated is display device external reflection light incidence the utility model structure.Wherein 400 is aforesaid rotatory polarization lamellas, its primarily of 401 linear polarizer and 402 quarter-wave plate two parts composition, the light transmission shaft of linear polarizer 401 and the optical axis of quarter-wave plate 402 at 45 °.Adopt the structure shown in Fig. 3 a to be example when principle of work is described, namely contactor control device 300 is clipped between rotatory polarization lamella 400 and wave plate layer 500.External reflection light forms line polarisation after inciding linear polarizer 401, dextrorotation is converted to again (or left-handed through quarter-wave plate 402, according to quarter-wave plate optical axis direction) circularly polarized light, this circularly polarized light is after each Rotating fields surface reflections such as contactor control device 300, wave plate layer 500, reflected light is converted to left-handed (or dextrorotation) circularly polarized light, this circularly polarized light is again converted to and absorbs axle with linear polarizer 401 and cannot pass through in the same way when quarter-wave plate 402, therefore can realize anti-reflective effect.What Fig. 4 b illustrated is develop situation by the transmitted light of display panel transmission through the light path of the utility model structure.Fig. 4 b rightmost side is the linear polarization light of display panel transmission, this linear polarization light is converted to circularly polarized light (or elliptically polarized light after wave plate layer 500, according to thickness and the optical axis direction of wave plate layer 500, i.e. the linear polarization optical vibration direction angle of optical axis and display panel transmission a).Preferably wave plate layer 500 is quarter-wave plate, angle a=45 °, and the linear polarization light of now display panel transmission is converted to circularly polarized light after wave plate layer 500.After continuing through contactor control device 300, polarization characteristic does not change, still remain circularly polarized light (or elliptically polarized light), during quarter-wave plate 402 in rotatory polarization lamella 400, this circularly polarized light (or elliptically polarized light) is converted to linear polarization light (or major and minor axis ratio larger elliptically polarized light), and transmitted light brightness is kept largely.For illustrating that brightness strengthens effect, in contrast, if do not add wave plate layer 500 structure in the utility model, as illustrated in fig. 4 c, after the linear polarization light of display panel transmission continues through contactor control device 300, polarization characteristic does not change, still remain linear polarization light, after quarter-wave plate 402, quarter-wave plate 402 optical axis direction is identical with this linear polarization optical vibration direction, still remains line polarisation, under this kind of supposed situation, maximum (in other situations, this linear polarization light can become elliptical polarized light or rotatory polarization through quarter-wave plate 402 to final transmission intensity, luminance loss is larger), do not consider absorption loss, only calculate polarisation loss, final outgoing brightness about can keep 70% of former incident brightness, and according to structure shown in the utility model Fig. 4 b, do not consider absorption loss equally, only calculate polarisation loss, final outgoing brightness about can keep 100% of former incident brightness, there is the beneficial effect promoting transmitted light brightness, therefore anti-reflective effect can be realized.What Fig. 6 b illustrated is develop situation by the transmitted light of display panel transmission through the light path of the utility model structure.Fig. 6 b rightmost side is the linear polarization light of display panel transmission, and this linear polarization light is converted to circularly polarized light after wave plate 300.The linear polarization light of display panel transmission is converted to circularly polarized light after wave plate layer 500.After continuing through contactor control device 300, polarization characteristic does not change, still remain circularly polarized light, during quarter-wave plate 402 in rotatory polarization lamella 400, this circularly polarized light is converted to linear polarization light, transmitted light brightness is kept largely, has the beneficial effect keeping transmitted light brightness while reducing reflection.
Embodiment three
The sectional view of display device visual under being illustrated in figure 7 a kind of sunlight of another kind that the utility model provides, is followed successively by back lighting device 200, display screen 100, wave plate layer 500, rotatory polarization lamella 400, contactor control device 300 from bottom to up.In the present embodiment, layer of polarizer 108 light transmission shaft 0 ° on display screen 100.Rotatory polarization sheet adopts linear polarizer+quarter-wave plate unitized construction, and rotatory polarization sheet linear polarizer side plated surface antireflection film, linear polarizer light transmission shaft 45 °, with layer of polarizer 108 light transmission shaft angle 45 ° on display screen 100.Wave plate layer 500 adopts quarter-wave plate, layer of polarizer 108 light transmission shaft angle 45 ° (see Fig. 6) on optical axis and display screen 100, in the present embodiment, optical path change principle during no longer incident to display device external reflection light the utility model structure is set forth, and can refer to the optical path change principle in embodiment 2.Embodiment 2 is relative to embodiment 1, each Rotating fields and wave plate optical axis, polaroid all do not do through the relative position etc. of axle and change, only change the lamination order of each Rotating fields, in order to the various stacked position possible cases that the utility model is possible to be described, contactor control device 300 to be stacked in the superiors and to be conducive to ensureing touch accuracy.
Above-described embodiment is only for illustration of the utility model, and the various amendment not departing from the utility model spirit make embodiment of the present utility model and replacement, should be considered as dropping in protection domain of the present utility model.
The beneficial effects of the utility model:
, there is the problems such as the high or transmission effects of reflectivity is poor in method visual under the liquid-crystal apparatus of prior art realizes sunlight.Method given by the utility model patent, by adopting rotatory polarization lamella or adopting rotatory polarization lamella and the collocation of wave plate layer can reduce the reflectivity of external light source, can ensure again the transmissivity of backlight arrangement simultaneously, has visual effect under splendid sunlight.For application under liquid crystal indicator outdoors sunlight opens new method, technology of the present utility model can be widely used in the equipment that GPS, mobile phone, POS etc. have application demand under outdoors sunlight.
Above preferred embodiment of the present utility model is described.It is to be appreciated that the utility model is not limited to above-mentioned particular implementation, the equipment wherein do not described in detail to the greatest extent and structure are construed as to be implemented with the common mode in this area; Any those of ordinary skill in the art, do not departing under technical solutions of the utility model ambit, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solutions of the utility model, or being revised as the Equivalent embodiments of equivalent variations, this does not affect flesh and blood of the present utility model.Therefore, every content not departing from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solutions of the utility model protection.
Claims (10)
1. display device visual under a sunlight, comprise display screen and backlight arrangement, described display screen comprises first substrate and second substrate, liquid crystal material layer is provided with between described first substrate and second substrate, described first substrate, substrate layer is equipped with between second substrate and described liquid crystal material layer, described backlight arrangement comprises light source, light guide section and reflection diaphragm group, the two ends that described light guide section is connected with reflection diaphragm group are respectively equipped with described light source, it is characterized in that, described display device also comprises rotatory polarization lamella, described rotatory polarization lamella covers described display screen upper surface.
2. display device visual under a kind of sunlight as claimed in claim 1, it is characterized in that, described display device also comprises wave plate layer, and described wave plate layer is arranged between described rotatory polarization lamella and display screen.
3. display device visual under a kind of sunlight as claimed in claim 2, it is characterized in that, described display device also comprises contactor control device, and described contactor control device is arranged on outside described rotatory polarization lamella or is arranged between described wave plate layer and described rotatory polarization lamella or is arranged between described wave plate layer and display screen.
4. display device visual under a kind of sunlight as claimed in claim 2, is characterized in that, described wave plate layer is quarter-wave lamella or 3/4ths wave plate layers.
5. display device visual under a kind of sunlight as claimed in claim 3, is characterized in that, described contactor control device surface is provided with the anti-reflection processing layer of antireflection.
6. display device visual under a kind of sunlight as described in as arbitrary in claim 1-5, it is characterized in that, described rotatory polarization lamella comprises linear polarizer and wave plate.
7. display device visual under a kind of sunlight as claimed in claim 6, is characterized in that, described wave plate is quarter-wave plate or 3/4ths wave plates.
8. display device visual under a kind of sunlight as claimed in claim 7, it is characterized in that, described display screen also comprises layer of polarizer, described upper layer of polarizer is located at outside described second substrate, described wave plate is quarter-wave plate, the light transmission shaft of described linear polarizer respectively with the optical axis of layer of polarizer light transmission shaft on described display screen and quarter-wave plate in angle of 45 degrees.
9. display device visual under a kind of sunlight as claimed in claim 6, is characterized in that, the surface, linear polarizer side in described rotatory polarization lamella is coated with antireflection film.
10. display device visual under a kind of sunlight as claimed in claim 1, it is characterized in that, described substrate layer comprises array base palte rete and CF substrate layer, described substrate layer is arranged between described first substrate and liquid crystal material layer, and described CF substrate layer is arranged between described second substrate liquid crystal material layer.
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Cited By (7)
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| CN105355168A (en) * | 2015-12-22 | 2016-02-24 | 广东小天才科技有限公司 | Processing method and device for display screen of intelligent terminal |
| CN105448200A (en) * | 2015-12-04 | 2016-03-30 | 中国电子科技集团公司第五十五研究所 | Method for improving OLED outdoor readability |
| CN105629553A (en) * | 2016-03-31 | 2016-06-01 | 中航华东光电有限公司 | Composite glass structure used for liquid crystal display |
| CN106324886A (en) * | 2015-06-22 | 2017-01-11 | 上海冠显光电科技有限公司 | Display module visible in sunlight |
| WO2017152446A1 (en) * | 2016-03-11 | 2017-09-14 | 武汉华星光电技术有限公司 | Liquid crystal display panel and device |
| US10811396B2 (en) | 2019-01-20 | 2020-10-20 | Lextar Electronics Corporation | Display device |
| CN113433729A (en) * | 2021-06-23 | 2021-09-24 | 京东方科技集团股份有限公司 | Display panel and display device |
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2015
- 2015-06-22 CN CN201520433802.1U patent/CN204790248U/en active Active
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| CN105355168A (en) * | 2015-12-22 | 2016-02-24 | 广东小天才科技有限公司 | Processing method and device for display screen of intelligent terminal |
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| CN105629553A (en) * | 2016-03-31 | 2016-06-01 | 中航华东光电有限公司 | Composite glass structure used for liquid crystal display |
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