CN203337950U - Optical structure and liquid crystal display device - Google Patents

Optical structure and liquid crystal display device Download PDF

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Publication number
CN203337950U
CN203337950U CN2013204445289U CN201320444528U CN203337950U CN 203337950 U CN203337950 U CN 203337950U CN 2013204445289 U CN2013204445289 U CN 2013204445289U CN 201320444528 U CN201320444528 U CN 201320444528U CN 203337950 U CN203337950 U CN 203337950U
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prism
prisms
layers
light
optical
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刘方兴
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BOE Technology Group Co Ltd
Beijing BOE Optoelectronics Technology Co Ltd
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Beijing BOE Optoelectronics Technology Co Ltd
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Abstract

The utility model discloses an optical structure and a liquid crystal display device. The optical structure comprises a first prism layer and a second prism layer which are sequentially formed from the light-in side to the light-out side. The first prism layer comprises a plurality of first prisms which are arranged in parallel at intervals, and the first prisms are used for reflecting the light opposite to emergent light on the light-out side to the second prism layer. The second prism layer comprises a plurality of prism groups, the positions of the prism groups and the positions of the first prisms are arranged to be staggered, and the prism groups are used for refracting the light reflected by the first prisms to the light-out side. According to the optical structure, when incident light is emitted out through the first prisms and then is reflected back to the first prisms by an object on the light-out side, the reflected light is emitted by the prism groups ultimately, the reflected light is the same as the emergent light in direction, and therefore the utilization rate of the incident light is improved. When the optical structure is used for the display device, the utilization rate of the incident light can be improved, and accordingly the transmittance is improved.

Description

A kind of optical texture and liquid crystal indicator
Technical field
The utility model relates to field of liquid crystal display, relates in particular to a kind of optical texture and liquid crystal indicator.
Background technology
TFT-LCD (Thin Film Transistor-Liquid Crystal Display, the Thin Film Transistor (TFT) liquid crystal display) be current most widely used flat panel display, because it has the advantages such as volume is little, low in energy consumption, radiationless, deeply be subject to people's favor.Transmitance is the important technical indicator of TFT-LCD, and in the design of TFT-LCD, the light that backlight sends is by after liquid crystal layer, part incident light is deceived matrix (Black Matrix, BM) block, another part incident light sees through the outgoing of R/G/B color blocking, forms emergent light.And incident light can be reflected after reaching BM, the incident light demonstration that this part is reflected can't contribute to the demonstration of liquid crystal indicator, and the light utilization efficiency that causes backlight to send is low, and then can cause the decline of transmitance.
In order to overcome the problems referred to above, the method for existing raising TFT-LCD transmitance is mainly to improve the pixel aperture ratio of TFT, or chooses better friction (Rubbing) angle, or improves the inner structure of backlight.But these of prior art are improved one's methods, all can't solve the low problem of light utilization efficiency that backlight that BM reflection causes sends, fettered the ability that the TFT-LCD transmitance improves.
The utility model content
The purpose of this utility model is to provide a kind of optical texture and liquid crystal indicator, for improving the transmitance of liquid crystal display.
The purpose of this utility model is achieved through the following technical solutions:
The utility model embodiment provides a kind of optical texture, comprises the first layers of prisms and the second layers of prisms that are formed successively by light inlet side to bright dipping side;
Described the first layers of prisms comprises a plurality of the first prisms that parallel interval arranges, described the first prism for by the bright dipping side with the reciprocal light reflection of emergent light to described the second layers of prisms;
Described the second layers of prisms comprises a plurality of prism groups, and the position of the position of described prism group and described the first prism is staggered, and described prism group is used for the light refraction of described the first prismatic reflection to the bright dipping side.
Preferably, comprise the optical waveguide layer be arranged between described the first layers of prisms and described the second layers of prisms, described optical waveguide layer covers described the first layers of prisms.Optical waveguide layer can make the light of incident arrive more uniformly the second layers of prisms.
Preferably, described the first prism has unidirectional permeability, can make to enter the first prism by the light of light inlet side, and can't enter the first prism with the reciprocal light of emergent light.
Preferably, described optical waveguide layer has high reflectance and extinction not, makes passing through that light can be without hindrance, and can not lose.
In the cross section of the first prism, prism group, the cross section of prism can be arbitrary graphic, for example prismatic, rectangle, trapezoidal or sexangle, this more calculating and adjustment certainly.Therefore, based on being easy to the consideration realized, preferred, described the first prism is prism, and described prism group is the prism group.
The utility model beneficial effect is as follows: one, by by light inlet side to bright dipping side, forming successively the first layers of prisms and the second layers of prisms, a plurality of first prismatic reflections of the first layers of prisms and the light of emergent light opposite direction, after light after the first prismatic reflection arrives the second layers of prisms, light by prism group refraction formation with the emergent light equidirectional, thus the outgoing light intensity increased; Its two, when incident light, by the first prism outgoing and while by the object of bright dipping side, being reflected back the first prism, the process in one makes this reflected light finally by the outgoing of prism group, and identical with the emergent light direction, improves the utilization factor of incident light.
The utility model embodiment provides a kind of liquid crystal indicator, comprise color membrane substrates and array base palte, described color membrane substrates is included in parallel black matrix and the color blocking be crisscross arranged on substrate, and being arranged at the optical texture between described color membrane substrates and described array base palte, described optical texture comprises the first layers of prisms and the second layers of prisms formed successively by light inlet side to bright dipping side;
Described the first layers of prisms comprises a plurality of the first prisms that parallel interval arranges, described the first prism for by the bright dipping side with the reciprocal light reflection of emergent light to described the second layers of prisms;
Described the second layers of prisms comprises a plurality of prism groups, and the position of the position of described prism group and described the first prism is staggered, described prism group for by the light refraction of described the first prismatic reflection to the bright dipping side, the light after refraction is identical with described emergent light direction.
Preferably, described the first prism of each of described optical texture is corresponding with the black matrix position of a row/column, and each described prism group is corresponding with the described color blocking of row/column position.
Preferably, the width of described the first prism is less than the width of described black matrix.
Because the width of the first prism is less than the width of black matrix, therefore the first prism is inevitable can not have influence on the pixel openings district, and this can guarantee the validity of open region.
Preferably, the width of described prism group is greater than the width of described color blocking.The prism group has the width wider than color blocking, while making the light reflected by the prism group arrive the color blocking open region, can cover whole open region, makes the light of incident open region even.
Preferably, comprise the optical waveguide layer be arranged between described the first layers of prisms and described the second layers of prisms, described optical waveguide layer covers described the first layers of prisms.Optical waveguide layer can make the light of incident arrive more uniformly the second layers of prisms.
Preferably, described the first prism has unidirectional permeability, can make to enter the first prism by the light of light inlet side, and can't enter the first prism with the reciprocal light of emergent light.
The utility model embodiment beneficial effect is as follows: an optical texture is set in display device, optical texture is by forming successively the first layers of prisms and the second layers of prisms by light inlet side to bright dipping side, described the first prism of each of the first layers of prisms is corresponding with the black matrix position of a row/column, and the described prism group of each of the second layers of prisms is corresponding with the described color blocking of row/column position; By the first prismatic reflection to the second layers of prisms, by the refraction of prism group, forms outgoing after the light with the emergent light equidirectional when the light of black matrix reflection arrives the first prism, improved the utilization factor of backlight emitted light, thus the raising transmitance.
The accompanying drawing explanation
The structural representation that Fig. 1 is the described optical texture of the utility model embodiment;
The structural representation of the first layers of prisms that Fig. 2 is the described optical texture of the utility model embodiment;
The structural representation of the second layers of prisms that Fig. 3 is the described optical texture of the utility model embodiment;
The knot schematic diagram of the optical waveguide layer that Fig. 4 is the described optical texture of the utility model embodiment;
Fig. 5 is the possible structural representation of the described optical texture the second of the utility model embodiment;
Fig. 6 is the third possible structural representation of the described optical texture of the utility model embodiment;
The structural representation that Fig. 7 is the described display device of the utility model embodiment;
The schematic diagram that Fig. 8 is the described display device of the utility model embodiment incident light incident.
Embodiment
Implementation procedure below in conjunction with Figure of description to the utility model embodiment is elaborated.It should be noted that same or similar label means same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and should not be construed restriction of the present utility model.
Referring to Fig. 1, the utility model embodiment provides a kind of optical texture, comprises the first layers of prisms 1 and the second layers of prisms 2 that are formed successively by light inlet side to bright dipping side;
The first layers of prisms 1 comprise a plurality of the first prism 11, the first prisms 11 that parallel interval arranges for by the bright dipping side with reciprocal light reflection to the second layers of prisms 2 of emergent light;
The second layers of prisms 2 comprises a plurality of prism groups 21, and the position of the position of prism group 21 and the first prism 11 is staggered, and prism group 21 is for the light refraction by the first prism 11 reflections to the bright dipping side, and the light after refraction is identical with the emergent light direction.
Preferably, also comprise the optical waveguide layer 3 be arranged between the first layers of prisms 1 and the second layers of prisms 2, optical waveguide layer 3 covers the first layers of prisms 1.
Show the first layers of prisms 1 referring to Fig. 2, comprise the first prism 11 that parallel interval arranges; Show the second layers of prisms 2 referring to Fig. 3, comprise prism group 21; Referring to Fig. 4, show optical waveguide layer 3.
According to different needs, the optical texture of the present embodiment can change accordingly, referring to Fig. 5, shows another kind of optical texture, slightly different, as follows from the optical texture shown in Fig. 1:
Optical texture shown in Fig. 1, each prism group 21 is arranged at the top in zone between two adjacent with it the first prisms 11, and the top, zone that exceeds the first prism of both sides does not arrange the prism group.
Optical texture shown in Fig. 5, each first prism 11 is arranged at the below in zone between two adjacent with it prism groups 21, and the below, zone that exceeds the prism group of both sides does not arrange the first prism 11.
According to the optical texture shown in Fig. 1 and Fig. 5, there is various deformation, for example: referring to Fig. 6, shown in optical texture shown in Fig. 6 and Fig. 1, the optical texture difference is, the prism group 21 of the top of optical texture one side exceeds the first prism 11, the first prism 11 of the below of opposite side exceeds prism group 21, and the position of the position of prism group 21 and the first prism 11 is staggered.Certainly, above-mentioned unshowned various deformation, be all that those skilled in the art can not expect by the utility model by creative work, and it is all within protection domain of the present utility model.
Preferably, the material of the first prism 11 is the polyester material with unidirectional permeability.
Adopt the polyester material of unidirectional permeability, only allow the incident light of light inlet side to pass through, do not allow to pass through for bright dipping side and the rightabout light of emergent light, but by its reflection of direction with the normal symmetry.
Preferably, the material of prism group 21 is glass, polyethylene terephthalate (Polyethylene Terephthalate, PET) or polymethylmethacrylate (Polymeric Methyl Methacrylate, PMMA).
In addition, can also be formed respectively by PET and PMMA the part of prism group 21, wherein PET forms the base section of prism group 21, and PMMA forms the main part of prism group 21, at this, no longer gives an example.
Preferably, the material of optical waveguide layer 3 is high reflectance and the material of extinction not.
Preferably, the material of high reflectance is optical-grade polymethylmethacrylacontinuous material or polycarbonate pc material.
Need explanation, the optical texture provided in the utility model, can adopt any prism that can realize the utility model thought as the first prism 11 or form prism group 21.Preferably, the first prism 11 is prism, and prism group 21 is the prism group.
What further illustrate is, due to the demand for different, different light source or form the material difference of the first prism 11 or prism group 21, therefore, the size of the first prism 11, prism group 21 (comprising width and height) and the first prism 11 all need to depend on the circumstances with the relative distance of prism group 21 place layers, those skilled in the art can obtain data accurately by repetition test according to thought of the present utility model, thereby be applied to actual production, above data do not given an example one by one at this.
The beneficial effect of the utility model embodiment is as follows: one, by by light inlet side to bright dipping side, forming successively the first layers of prisms and the second layers of prisms, a plurality of first prismatic reflections of the first layers of prisms and the light of emergent light opposite direction, after light after the first prismatic reflection arrives the second layers of prisms, light by prism group refraction formation with the emergent light equidirectional, thus the outgoing light intensity increased; Its two, when incident light, by the first prism outgoing and while by the object of bright dipping side, being reflected back the first prism, the process in one makes this reflected light finally by the outgoing of prism group, and identical with the emergent light direction, improves the utilization factor of incident light.
Referring to Fig. 7, the utility model embodiment provides a kind of liquid crystal indicator, comprise color membrane substrates 100 and array base palte 200, color membrane substrates 100 is included in the parallel black matrix 102 be crisscross arranged and color blocking 103 on substrate 101, display device also comprises optical texture as above, and optical texture is arranged between color membrane substrates 100 and array base palte 200.Wherein, optical texture comprises the first layers of prisms 1 and the second layers of prisms 2 formed successively by light inlet side to bright dipping side; The first layers of prisms 1 comprise a plurality of the first prism 11, the first prisms 11 that parallel interval arranges for by the bright dipping side with reciprocal light reflection to the second layers of prisms 2 of emergent light; The second layers of prisms 2 comprises a plurality of prism groups 21, and the position of the position of prism group 21 and the first prism 11 is staggered, and prism group 21 is for the light refraction by the first prism 11 reflections to the bright dipping side, and the light after refraction is identical with the emergent light direction; Also comprise the optical waveguide layer 3 be arranged between the first layers of prisms 1 and the second layers of prisms 2, optical waveguide layer 3 covers the first layers of prisms 1.
Preferably, each of optical texture the first prism 11 is corresponding with the black matrix of a row/column 102 positions, and each prism group 21 is corresponding with row/column color blocking 103 positions.
Preferably, the width of the first prism 11 is less than the width of black matrix 102.
Preferably, the width of prism group 21 is greater than the width of color blocking 103.
Referring to Fig. 8, the light that shows the backlight of the present embodiment in conjunction with Fig. 7 is injected the schematic diagram of liquid crystal indicator.Wherein, backlight sends incident light 300, and a part of incident light 300, through prism group 21, forms the part of emergent light 301, forms a part that sees through light 400 after color blocking 103.Another part incident light arrives black matrix 102 through the first prism 11, be reflected back the first prism 11(as reflected light in Fig. 8 302 by black matrix 102), again through the first prism 11 reflex to prism group 21(as Fig. 8 in reflected light 303), form again another part of emergent light 301 after 21 refractions of prism group, form the another part that sees through light 400 after color blocking 103.Thereby realize taking full advantage of incident light 300.
The utility model embodiment beneficial effect is as follows: an optical texture is set in display device, optical texture is by forming successively the first layers of prisms and the second layers of prisms by light inlet side to bright dipping side, described the first prism of each of the first layers of prisms is corresponding with the black matrix position of a row/column, and the described prism group of each of the second layers of prisms is corresponding with the described color blocking of row/column position; By the first prismatic reflection to the second layers of prisms, by the refraction of prism group, forms outgoing after the light with the emergent light equidirectional when the light of black matrix reflection arrives the first prism, improved the utilization factor of backlight emitted light, thus the raising transmitance.
It should be noted that, shown in Fig. 7 or Fig. 8, in display device, optical texture is arranged at array base palte 200 1 sides, also optical texture can be arranged to color membrane substrates 100 1 sides.In addition, also can adjust the first prism 11 with respect to the position of black matrix 102, prism group 21 position with respect to color blocking 103, thereby adapt to different needs.
Obviously, those skilled in the art can carry out various changes and modification and not break away from spirit and scope of the present utility model the utility model.Like this, if within of the present utility model these are revised and modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model also is intended to comprise these changes and modification interior.

Claims (10)

1. an optical texture, is characterized in that, comprises the first layers of prisms and the second layers of prisms that are formed successively by light inlet side to bright dipping side;
Described the first layers of prisms comprises a plurality of the first prisms that parallel interval arranges, described the first prism for by the bright dipping side with the reciprocal light reflection of emergent light to described the second layers of prisms;
Described the second layers of prisms comprises a plurality of prism groups, and the position of the position of described prism group and described the first prism is staggered, and described prism group is used for the light refraction of described the first prismatic reflection to the bright dipping side.
2. optical texture as claimed in claim 1, is characterized in that, between described the first layers of prisms and described the second layers of prisms, is provided with optical waveguide layer, and described optical waveguide layer covers described the first layers of prisms.
3. optical texture as claimed in claim 1 or 2, is characterized in that, described the first prism has unidirectional permeability.
4. optical texture as claimed in claim 2, is characterized in that, described optical waveguide layer has high reflectance and extinction not.
5. optical texture as claimed in claim 1, is characterized in that, described the first prism is prism, and described prism group is the prism group.
6. a liquid crystal indicator, comprise color membrane substrates and array base palte, described color membrane substrates is included in parallel black matrix and the color blocking be crisscross arranged on substrate, it is characterized in that, comprise the optical texture be arranged between described color membrane substrates and described array base palte, described optical texture comprises the first layers of prisms and the second layers of prisms formed successively by light inlet side to bright dipping side;
Described the first layers of prisms comprises a plurality of the first prisms that parallel interval arranges, described the first prism for by the bright dipping side with the reciprocal light reflection of emergent light to described the second layers of prisms;
Described the second layers of prisms comprises a plurality of prism groups, and the position of the position of described prism group and described the first prism is staggered, and described prism group is used for the light refraction of described the first prismatic reflection to the bright dipping side.
7. liquid crystal indicator as claimed in claim 6, is characterized in that, described the first prism of each of described optical texture is corresponding with the black matrix position of a row/column, and each described prism group is corresponding with the described color blocking of row/column position.
8. liquid crystal indicator as claimed in claim 7, is characterized in that, the width of described the first prism is less than the width of described black matrix.
9. liquid crystal indicator as claimed in claim 7, is characterized in that, the integral width of described prism group is greater than the width of described color blocking.
10. liquid crystal indicator as described as claim 6 to 9 any one, is characterized in that, between described the first layers of prisms and described the second layers of prisms, is provided with optical waveguide layer, and described optical waveguide layer covers described the first layers of prisms; Described the first prism has unidirectional permeability.
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105204221A (en) * 2015-10-28 2015-12-30 京东方科技集团股份有限公司 Color film substrate, display panel and display device
CN105759490A (en) * 2016-04-28 2016-07-13 乐视控股(北京)有限公司 Brightness enhancement film, display module and display device
WO2017185595A1 (en) * 2016-04-28 2017-11-02 乐视控股(北京)有限公司 Brightness enhancement film, display module and display device
CN109669296A (en) * 2019-02-22 2019-04-23 京东方科技集团股份有限公司 A kind of liquid crystal display panel, and preparation method thereof and display device
WO2020253567A1 (en) * 2019-06-18 2020-12-24 京东方科技集团股份有限公司 Transparent display substrate and transparent display device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105204221A (en) * 2015-10-28 2015-12-30 京东方科技集团股份有限公司 Color film substrate, display panel and display device
WO2017071344A1 (en) * 2015-10-28 2017-05-04 京东方科技集团股份有限公司 Color film substrate, display panel and display device
CN105204221B (en) * 2015-10-28 2018-12-07 京东方科技集团股份有限公司 Color membrane substrates, display panel and display device
US10247985B2 (en) 2015-10-28 2019-04-02 Boe Technology Group Co., Ltd. Color filter substrate, display panel and display device
CN105759490A (en) * 2016-04-28 2016-07-13 乐视控股(北京)有限公司 Brightness enhancement film, display module and display device
WO2017185595A1 (en) * 2016-04-28 2017-11-02 乐视控股(北京)有限公司 Brightness enhancement film, display module and display device
CN109669296A (en) * 2019-02-22 2019-04-23 京东方科技集团股份有限公司 A kind of liquid crystal display panel, and preparation method thereof and display device
WO2020253567A1 (en) * 2019-06-18 2020-12-24 京东方科技集团股份有限公司 Transparent display substrate and transparent display device

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Owner name: JINGDONGFANG SCIENCE AND TECHNOLOGY GROUP CO., LTD

Free format text: FORMER OWNER: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY CO., LTD.

Effective date: 20150709

Owner name: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY

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Effective date of registration: 20150709

Address after: 100015 Jiuxianqiao Road, Beijing, No. 10, No.

Patentee after: BOE Technology Group Co., Ltd.

Patentee after: Beijing BOE Photoelectricity Science & Technology Co., Ltd.

Address before: 100176 Beijing city in Western Daxing District economic and Technological Development Zone, Road No. 8

Patentee before: Beijing BOE Photoelectricity Science & Technology Co., Ltd.