CN110673253B - Side light type hexagonal light guide plate - Google Patents

Side light type hexagonal light guide plate Download PDF

Info

Publication number
CN110673253B
CN110673253B CN201910874719.0A CN201910874719A CN110673253B CN 110673253 B CN110673253 B CN 110673253B CN 201910874719 A CN201910874719 A CN 201910874719A CN 110673253 B CN110673253 B CN 110673253B
Authority
CN
China
Prior art keywords
guide plate
light guide
trapezoid
isosceles trapezoid
hemisphere
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201910874719.0A
Other languages
Chinese (zh)
Other versions
CN110673253A (en
Inventor
杨希峰
王水银
梅坦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Talant Optronics Suzhou Co ltd
Original Assignee
Talant Optronics Suzhou Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Talant Optronics Suzhou Co ltd filed Critical Talant Optronics Suzhou Co ltd
Priority to CN201910874719.0A priority Critical patent/CN110673253B/en
Publication of CN110673253A publication Critical patent/CN110673253A/en
Application granted granted Critical
Publication of CN110673253B publication Critical patent/CN110673253B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
    • G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0045—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Planar Illumination Modules (AREA)

Abstract

The invention discloses a side light type hexagonal light guide plate, which comprises a light guide plate body, wherein the light guide plate body is hexagonal, the hexagon comprises a rectangular part and an isosceles trapezoid part arranged on one side of the rectangular part, the longer bottom edge of the trapezoid of the isosceles trapezoid part is connected with the rectangular part, the surface of the light guide plate body is provided with a plurality of hemispherical structures which are arranged in a matrix form, the light incident side of the side-light type hexagonal light guide plate is the opposite side of the side where the rectangular part and the isosceles trapezoid part are connected, the hemisphere structure of the rectangular part of the light guide plate body is a first hemisphere structure, the hemisphere structure of the isosceles trapezoid part of the light guide plate body is a second hemisphere structure, the first hemispherical structure and the second hemispherical structure have different longitudinal and transverse spacing sizes, and the first hemispherical structure is larger and sparser than the second hemispherical structure in size. The invention effectively improves the phenomenon of uneven illumination at the bottom angle position of the trapezoid.

Description

Side light type hexagonal light guide plate
Technical Field
The present invention relates to a photometric light guide plate, and more particularly, to a sidelight type hexagonal light guide plate.
Background
The development of liquid crystal display technology is becoming mature, and the liquid crystal display technology is very common in daily life. In recent years, wearable devices have become popular, and they are single in shape and do not have much difference in appearance from conventional watches. Due to the problems of uneven illumination of the polygonal backlight module and the like, the wearable device with the irregular shape is slow to develop. The edge-light type polygonal backlight module has more edges, and the illumination distribution at the included angle is not particularly ideal, so that the design is more difficult than that of the conventional rectangular backlight module. Because the edge illumination distribution of the light-emitting surface of the polygonal backlight module is uneven and the regional dimming of the side-in backlight module is difficult to realize, the utilization rate of the polygonal light guide plate is not high. The important design part of the backlight module is the design of the size and distribution of the internal microstructures of the light guide plate.
Disclosure of Invention
The invention aims to provide a side-light type hexagonal light guide plate, which solves the problem of uneven illumination of a light emergent surface of the light guide plate.
The technical scheme of the invention is as follows: the utility model provides a sidelight formula hexagon light guide plate, includes the light guide plate body, the light guide plate body is the hexagon, the hexagon include a rectangular part and set up in the isosceles trapezoid part of rectangular part one side, the trapezoidal longer base of isosceles trapezoid part with the rectangular part meets, the surface of light guide plate body is equipped with a plurality of hemisphere structures that are the matrix and arrange, the income light side of sidelight formula hexagon light guide plate does the rectangular part with the offside of one side is met to the isosceles trapezoid part, the hemisphere structure of the rectangular part of light guide plate body is first hemisphere structure, the hemisphere structure of the isosceles trapezoid part of light guide plate body is second hemisphere structure, the sphere radius of first hemisphere structure is greater than the sphere radius of second hemisphere structure, first hemisphere structure is in the ball interval of the trapezoidal longer base length direction is less than first hemisphere structure is in the ball interval of the trapezoidal isosceles trapezoid part's trapezoidal direction of height The distance between the balls of the second hemispherical structure in the length direction of the longer bottom side of the trapezoid is smaller than the distance between the balls of the second hemispherical structure in the height direction of the trapezoid of the isosceles trapezoid part, the distance between the balls of the first hemispherical structure in the height direction of the trapezoid of the isosceles trapezoid part is equal to the distance between the balls of the second hemispherical structure in the height direction of the trapezoid of the isosceles trapezoid part, and the distance between the balls of the first hemispherical structure in the length direction of the longer bottom side of the trapezoid is larger than the distance between the balls of the second hemispherical structure in the length direction of the longer bottom side of the trapezoid.
Furthermore, the spherical radius of the first hemispherical structure is 0.66-1.0 mm, and the spherical radius of the second hemispherical structure is 0.55-0.8 mm.
Furthermore, the ball pitch of the first hemispherical structure in the length direction of the longer bottom side of the trapezoid is 2.15-2.7 mm, the ball pitch of the second hemispherical structure in the length direction of the longer bottom side of the trapezoid is 1.79-2.36 mm, and the ball pitch of the first hemispherical structure in the height direction of the trapezoid of the isosceles trapezoid part is 2.6-3.58 mm.
Further, the thickness of the light guide plate is 1.5-2 mm.
Furthermore, the side length of the rectangular part is not less than 25mm, the shorter bottom edge of the trapezoid of the isosceles trapezoid part is not less than 10mm, and the trapezoid bottom angle of the isosceles trapezoid part is 30-60 degrees
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
the problem of the inhomogeneous phenomenon of illuminance of the trapezoidal base angle position of hexagon light guide plate is solved, the vertical and horizontal interval size of first hemisphere structure and second hemisphere structure is different, first hemisphere structure is big and sparse than second hemisphere structure ball size, will be in the past the ball structure of diameter less than 0.1mm enlarges the size by a wide margin, the requirement to equipment when having reduced batch production, when guaranteeing the micro-structure surface area in the unit area, the quantity of micro-structure in the unit area has been reduced, thereby the number of times of processing has been reduced, the processing degree of difficulty has been reduced and the yields has been improved.
Drawings
Fig. 1 is a schematic diagram of a side-light type hexagonal light guide plate structure.
Fig. 2 is a schematic side view of a side-view hexagonal light guide plate.
Fig. 3 is a graph of light uniformity of the hexagonal light guide plate according to example 1.
Detailed Description
The present invention is further described in the following examples, which are intended to be illustrative only and not to be limiting as to the scope of the invention, which is to be given the full breadth of the appended claims and any and all equivalent modifications thereof which would occur to persons skilled in the art upon reading the present specification and which are intended to be within the scope of the present invention as defined in the appended claims.
Embodiment 1, please refer to fig. 1 and 2, a side-light type hexagonal light guide plate includes a light guide plate body 1, the thickness of which is 1.5mm, the light guide plate body 1 is a hexagon, the hexagon includes a rectangular portion 11 and an isosceles trapezoid portion 12 disposed at one side of the rectangular portion 11, the longer bottom side of the trapezoid of the isosceles trapezoid portion 12 is connected to the rectangular portion 11, the rectangular portion 11 is 30mm long and 26mm wide, the shorter bottom side of the trapezoid of the isosceles trapezoid portion 12 is 10mm, the base angle of the trapezoid is 30 °, a plurality of hemisphere structures are disposed on the surface of the light guide plate body 1 in a matrix arrangement, the light incident side of the side-light type hexagonal light guide plate is the opposite side of the side where the rectangular portion is connected to the isosceles trapezoid portion 12, i.e., the 30mm long side of the rectangular portion 11, the hemisphere structure of the light guide plate body 1 is a first hemisphere structure 2, the hemisphere structure of the isosceles trapezoid portion 12 of the light guide plate body 1 is a second hemisphere structure 3, the sphere radius of the first hemisphere structure 2 is 0.66mm, the sphere radius of the second hemisphere structure 3 is 0.55mm, the sphere radius of the first hemisphere structure 1 is a longer sphere structure in the sphere length direction, the light emergent distance D is 3.15 mm, and the second hemisphere structure is a simulated hemisphere structure 3.15 mm in the light emitting direction, and 3 mm, the isosceles trapezoid hemisphere distance D3.6 mm.
Embodiment 2, side light formula hexagon light guide plate, including the light guide plate body, thickness is 1.5mm, the light guide plate body is the hexagon, the hexagon includes a rectangle part and sets up in the isosceles trapezoid part of rectangle part one side, the longer base of the trapezoid of isosceles trapezoid part meets with the rectangle part, rectangle length 30mm, width 26mm, the shorter base 10mm of the trapezoid of isosceles trapezoid part, trapezoidal base angle is 30 degrees, the surface of light guide plate body is equipped with a plurality of hemisphere structures that are arranged in the matrix, the income light side of side light formula hexagon light guide plate is the offside that rectangle part meets with isosceles trapezoid part one side, namely, the 30mm length one side of rectangle, the hemisphere structure of the rectangle part of light guide plate body is first hemisphere structure, the hemisphere structure of the isosceles trapezoid part of light guide plate body is second hemisphere structure, the sphere radius of first hemisphere structure is 1.0mm, the sphere radius of second hemisphere structure is 0.8mm, the sphere interval of first hemisphere structure is 2.7mm in the longer base length direction of trapezoid, the sphere interval of second hemisphere structure is 2.36mm in the longer base length direction of trapezoid, the second hemisphere structure is L mm through light-emitting angle light.
Embodiment 3, side light formula hexagon light guide plate, including the light guide plate body, thickness is 1.5mm, the light guide plate body is the hexagon, the hexagon includes a rectangle part and sets up in the isosceles trapezoid part of rectangle part one side, the longer base of the trapezoid of isosceles trapezoid part meets with the rectangle part, rectangle length 30mm, width 26mm, the shorter base 12mm of the trapezoid of isosceles trapezoid part, trapezoidal base angle is 60 degrees, the surface of light guide plate body is equipped with a plurality of hemisphere structures that are arranged in the matrix, the income light side of side light formula hexagon light guide plate is the offside that rectangle part meets with isosceles trapezoid part one side, namely, the 30mm length one side of rectangle, the hemisphere structure of rectangle part of light guide plate body is first hemisphere structure, the hemisphere structure of isosceles trapezoid part of light guide plate body is second hemisphere structure, the sphere radius of first hemisphere structure is 0.78mm, the sphere radius of second hemisphere structure is 0.62mm, the sphere pitch of first hemisphere structure is 2.36mm in the longer base length direction of trapezoid, the sphere pitch of second hemisphere structure is 2.05mm in the longer base length direction of trapezoid, the second hemisphere structure is 3524 mm through light-emitting angle light, the half ball pitch is obvious.

Claims (5)

1. The utility model provides a side light formula hexagon light guide plate, a serial communication port, including the light guide plate body, the light guide plate body is the hexagon, the hexagon include a rectangular part and set up in the isosceles trapezoid part of rectangular part one side, the trapezoidal longer base of isosceles trapezoid part with the rectangular part meets, the surface of light guide plate body is equipped with a plurality of hemisphere structures that are the matrix and arrange, the income light side of side light formula hexagon light guide plate does the rectangular part with the offside of isosceles trapezoid part one side that meets, the hemisphere structure of the rectangular part of light guide plate body is first hemisphere structure, the hemisphere structure of the isosceles trapezoid part of light guide plate body is second hemisphere structure, the sphere radius of first hemisphere structure is greater than the sphere radius of second hemisphere structure, first hemisphere structure is in the sphere interval of trapezoidal longer base length direction is less than the first hemisphere structure is in the ladder of isosceles trapezoid part The sphere spacing in the shape height direction is smaller than that in the trapezoid height direction of the isosceles trapezoid part, the sphere spacing in the trapezoid height direction of the isosceles trapezoid part is smaller than that in the trapezoid height direction of the trapezoid structure, the sphere spacing in the trapezoid height direction of the isosceles trapezoid part is equal to that in the isosceles trapezoid part, the sphere spacing in the trapezoid height direction of the isosceles trapezoid part is larger than that in the trapezoid height direction of the trapezoid structure, and the protrusion height of the first hemisphere structure is equal to that in the second hemisphere structure.
2. The edge-lit hexagonal light guide plate according to claim 1, wherein the first hemispherical structure has a spherical radius of 0.66 to 1.0mm, and the second hemispherical structure has a spherical radius of 0.55 to 0.8 mm.
3. The edge-light hexagonal light guide plate according to claim 1, wherein the first hemispherical structure has a ball pitch of 2.15 to 2.7mm in a length direction of a longer base of the trapezoid, the second hemispherical structure has a ball pitch of 1.79 to 2.36mm in a length direction of a longer base of the trapezoid, and the first hemispherical structure has a ball pitch of 2.6 to 3.58mm in a height direction of the trapezoid of the isosceles trapezoid portion.
4. The edge-lit hexagonal light guide plate according to claim 1, wherein the light guide plate has a thickness of 1.5 to 2 mm.
5. The edge-light hexagonal light guide plate according to claim 1, wherein the rectangular portion has a side length of not less than 25mm, the shorter base of the trapezoid of the isosceles trapezoidal portion is not less than 10mm, and the base angle of the trapezoid of the isosceles trapezoidal portion is 30 ° to 60 °.
CN201910874719.0A 2019-09-17 2019-09-17 Side light type hexagonal light guide plate Active CN110673253B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910874719.0A CN110673253B (en) 2019-09-17 2019-09-17 Side light type hexagonal light guide plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910874719.0A CN110673253B (en) 2019-09-17 2019-09-17 Side light type hexagonal light guide plate

Publications (2)

Publication Number Publication Date
CN110673253A CN110673253A (en) 2020-01-10
CN110673253B true CN110673253B (en) 2020-08-04

Family

ID=69078354

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910874719.0A Active CN110673253B (en) 2019-09-17 2019-09-17 Side light type hexagonal light guide plate

Country Status (1)

Country Link
CN (1) CN110673253B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2480990Y (en) * 2001-06-18 2002-03-06 广东科龙电器股份有限公司 Color changeable multi-color type back lingting board for LED
CN1437056A (en) * 2002-02-05 2003-08-20 三星电子株式会社 Lighting device and display equipment utilizing the same lighting device
JP2005116268A (en) * 2003-10-06 2005-04-28 Sanyo Electric Co Ltd Surface light source device
CN201397401Y (en) * 2009-02-27 2010-02-03 东莞市翌唐新晨光电科技有限公司 Ultra-thin light guide plate for LCD screen of mobile phone
WO2016027511A1 (en) * 2014-08-20 2016-02-25 河西工業株式会社 Passenger compartment illumination device
CN107740995A (en) * 2017-10-25 2018-02-27 上海小糸车灯有限公司 A kind of LED total reflection lens, LED light conductors and automobile lamp

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2480990Y (en) * 2001-06-18 2002-03-06 广东科龙电器股份有限公司 Color changeable multi-color type back lingting board for LED
CN1437056A (en) * 2002-02-05 2003-08-20 三星电子株式会社 Lighting device and display equipment utilizing the same lighting device
JP2005116268A (en) * 2003-10-06 2005-04-28 Sanyo Electric Co Ltd Surface light source device
CN201397401Y (en) * 2009-02-27 2010-02-03 东莞市翌唐新晨光电科技有限公司 Ultra-thin light guide plate for LCD screen of mobile phone
WO2016027511A1 (en) * 2014-08-20 2016-02-25 河西工業株式会社 Passenger compartment illumination device
CN107740995A (en) * 2017-10-25 2018-02-27 上海小糸车灯有限公司 A kind of LED total reflection lens, LED light conductors and automobile lamp

Also Published As

Publication number Publication date
CN110673253A (en) 2020-01-10

Similar Documents

Publication Publication Date Title
CN101750666B (en) Light guide plate and backlight module using thereof
CN202267758U (en) Light guide plate, backlight source and display device
TW200745490A (en) Light guide plate
WO2015043490A1 (en) Light guide plate, planar light-emission apparatus, liquid crystal display apparatus, liquid crystal display terminal device, and method for manufacturing light guide plate
CN103629570A (en) lighting device
CN202870335U (en) Light guide plate with dots
CN104806976A (en) Novel uniform light direct type LED (light-emitting diode) back lighting light distribution lens
CN103629571B (en) Lighting device
CN110673253B (en) Side light type hexagonal light guide plate
CN102655198B (en) LED source
CN101191852A (en) Optical plate
WO2021237849A1 (en) Light guide plate and planar light source having light guide plate
CN203385889U (en) Light guide plate
CN101196574A (en) Optical plate
CN202256751U (en) Edge-type light guide plate
CN201628178U (en) Light guide plate
CN212781321U (en) Light guide plate and diffusion plate integrated module
CN205809492U (en) A kind of LED-backlit structure of specular removal
CN102840521A (en) Backlight module and liquid crystal display device
CN202546479U (en) Side light type backlight module
CN204328883U (en) A kind of high backlight arrangement covering diffuser plate and a kind of display
CN203571628U (en) Novel reflective sheet
CN207867068U (en) The special light guide plate of TV liquid crystal modules of novel energy-conserving
CN212808682U (en) Light guide plate and planar light source having the same
CN205450331U (en) Circle concave point face adds light guide plate of frosting

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant