CN109239979A - A kind of Mini LED direct-type backlight LCM liquid crystal display die set and brightness control method - Google Patents

A kind of Mini LED direct-type backlight LCM liquid crystal display die set and brightness control method Download PDF

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Publication number
CN109239979A
CN109239979A CN201811405429.3A CN201811405429A CN109239979A CN 109239979 A CN109239979 A CN 109239979A CN 201811405429 A CN201811405429 A CN 201811405429A CN 109239979 A CN109239979 A CN 109239979A
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China
Prior art keywords
liquid crystal
crystal display
mini led
lcm liquid
back side
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Pending
Application number
CN201811405429.3A
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Chinese (zh)
Inventor
欧阳华标
张西洋
习阳
党蒙
刘凯
陈春荣
李仲儒
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SHENZHEN K&D TECHNOLOGY Co Ltd
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SHENZHEN K&D TECHNOLOGY Co Ltd
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Priority to CN201811405429.3A priority Critical patent/CN109239979A/en
Publication of CN109239979A publication Critical patent/CN109239979A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133603Direct backlight with LEDs
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133606Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133606Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F1/133607Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses

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

Abstract

The present invention provides a kind of Mini LED direct-type backlight LCM liquid crystal display die set; including LCM liquid crystal display, the glue frame for placing liquid crystal display and the backlight module set on the LCM liquid crystal display back side; the back side of backlight module has been equipped with the lower metal frame of support protective effect; lower metal frame has cavity, and the backlight module includes the backlight membrane material in the LCM liquid crystal display back side, the just luminous Mini LED light group in the backlight membrane material back side and the lamp plate for being used to install Mini LED light group in lower metal frame;The back side of the backlight membrane material is additionally provided with the driving mould group connecting with LCM liquid crystal display, and lamp plate is connect with driving mould group.Compared with prior art, which avoids the defect of traditional side-emitting LED by Mini LED straight-down negative array distribution under liquid crystal display;Using the brightness control method application picture analytical technology of the display module, cooperated by software and hardware, to realize that picture pixels Block Brightness controls, makes improvement in energy conservation and contrast, 30% or more power consumption can be reduced under the same terms, contrast promotes one times or more.

Description

A kind of Mini LED direct-type backlight LCM liquid crystal display die set and brightness control method
Technical field
The present invention relates to technical field of liquid crystal display, especially a kind of Mini LED direct-type backlight LCM liquid crystal display mode Group and brightness control method.
Background technique
LCM liquid crystal display is not flashed with its image clearly exquisiteness, is not hurt eye, radiationless, low-power consumption, more frivolous to wait crowds More advantages and instead of traditional CRT cathode-ray tube display, favor by the majority of consumers.More application is in electronics at present Table, mobile phone, PDA, handheld device, learning machine, GPS navigator, digital camera, digital code camera, computer monitor, TV Machine etc..In automobile, medical treatment, also there is application in the high reliability requests such as military affairs field.Wherein preferable structure design and structure fill skill Art can be more energy efficient in daily use, preferably protect liquid crystal display from the influence and destruction of external environment, be The service life of product, which extends, plays the role of very energetically, accumulates more prestige and public praise for product.
The construction of LCM liquid crystal display die set traditional at present, as shown in Figure 1, including liquid crystal display 1, upper bright enhancement film 2, lower increasing Light film 3, diffusion barrier 4, glue frame 5, light guide plate 6, side-emitting LED 7, flexible circuit board 8, reflectance coating 9 and lower metal frame 10.Traditional LCM liquid crystal display die set uses side-emitting LED, light source lamp bar 7 be side entering type by reflectance coating 9 to light guide plate 6, diffusion barrier 4, under Bright enhancement film 3, upper bright enhancement film 2 arrive LCM liquid crystal display 1 again;Overall process be all it is entire flat luminous, this mode is doomed cannot be with display The brightness that targetedly brightness carries out unit pixel block of image content block of pixels carries out corresponding control, in terms of energy conservation and right Than just having opposite defect in terms of degree.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of Mini LED direct-type backlight LCM liquid crystal display die sets, by Mini For LED straight-down negative array distribution under liquid crystal display, the just below that such light source is placed directly in LCM liquid crystal display avoids traditional side hair Light LED bring defect.
The technical solution adopted by the present invention are as follows:
A kind of Mini LED direct-type backlight LCM liquid crystal display die set, including LCM liquid crystal display, the glue frame for placing liquid crystal display And the backlight module set on the LCM liquid crystal display back side, the back side of backlight module have been equipped with the lower metal frame of support protective effect, under Metal frame has cavity, and spy is being, the backlight module includes the backlight membrane material for being in the LCM liquid crystal display back side, in back The just luminous Mini LED light group at the light membrane material back side and the lamp plate for being used to install Mini LED light group in lower metal frame;Institute The back side for stating backlight membrane material is additionally provided with the driving mould group connecting with LCM liquid crystal display, and lamp plate is connect with driving mould group.
Preferably, each Mini LED according to matrix arrangement mode is mounted on lamp plate in the Mini LED light group that just shining On.
Preferably, the driving mould group includes the main circuit board and multiple and LCM liquid crystal for connecting with host computer The driving IC of display screen connection, main circuit board are connect by flexible circuit board with multiple driving IC, and lamp plate is connect with main circuit board.
Preferably, the backlight membrane material includes the lower diffusion sheet, lower brightening piece and upper brightening piece stacked gradually, drives mould group The back side in lower diffusion sheet.
The present invention also provides a kind of brightness control method using Mini LED direct-type backlight LCM liquid crystal display die set, The following steps are included:
1) the Mini LED321 for the Mini LED light group that just shines and corresponding lamp plate are divided into the rectangular lamps block of multiple X*Y, X and Y is constant;
2) LCM liquid crystal display is divided into multiple K*J pixel control units, K and J are constant;
3) the corresponding pixel control unit of each rectangular lamps block;
4) by using image analysis software, mini LED light required for picture respective pixel control unit to be shown is analyzed Brightness, and transfer data to driving mould group;
5) each in the corresponding rectangular lamps block of each pixel control unit of data processing that driving mould group is obtained by image analysis software The time span for being electrified timing and mini LED is powered on of Mini LED.
Preferably, each Mini LED is mounted on lamp according to matrix arrangement mode in the Mini LED light group that just shining in step 1) On plate.
Compared with prior art, the beneficial effects of the present invention are: the present invention provides a kind of Mini LED direct-type backlight LCM liquid crystal display die set, by Mini LED straight-down negative array distribution under liquid crystal display, such light source is placed directly in LCM liquid crystal display Just in the following, avoid traditional side-emitting LED bring defect, can be for each picture in the corresponding block of pixels of display image content The brightness of plain block matrix is controlled;And passed through using the brightness control method of the display module using picture analytical technology Software and hardware cooperation improves, phase to realize that picture pixels Block Brightness controls in this way in terms of being directed to energy conservation and in terms of contrast 30% or more power consumption can be reduced under the conditions of, contrast promotes one times or more.
Detailed description of the invention
Fig. 1 is the organigram of traditional LCM liquid crystal display die set;
Fig. 2 is a kind of schematic diagram of Mini LED direct-type backlight LCM liquid crystal display die set provided by the invention.
Specific embodiment
Preferred embodiment provided by the invention is illustrated with reference to the accompanying drawings.
Fig. 2 is a kind of preferred implementation side of Mini LED direct-type backlight LCM liquid crystal display die set provided by the invention Formula.As shown in Fig. 2, the Mini LED direct-type backlight LCM liquid crystal display die set includes LCM liquid crystal display 10, for placing LCM liquid The glue frame 20 that crystalline substance shields and the backlight module 30 set on the LCM liquid crystal display back side, the back side of backlight module 30 have been equipped with support protection The lower metal frame 40 of effect, lower metal frame 40 have cavity, and the backlight module 30 includes the back in 10 back side of LCM liquid crystal display Light membrane material 31, the Mini LED light group 32 and in the lower metal frame of just shining in 31 back side matrix arrangement of backlight membrane material For installing the lamp plate 33 of Mini LED light group 32;The back side of the backlight membrane material 31 is additionally provided with the drive connecting with LCM liquid crystal display Dynamic model group 40, lamp plate 33 with driving mould group 50 connect, such light source be placed directly in LCM liquid crystal display just in the following, avoiding tradition Side-emitting LED bring defect can be controlled for the brightness of the corresponding each pixel control unit of display image content, Improve in terms of energy saving aspect and contrast, can reduce by 30% or more power consumption under the same terms, contrast promoted one times with On.
Each Mini LED321 is mounted on lamp plate 33 according to matrix arrangement mode in the Mini LED light group 32 that just shining On, such light source Direct Uniform is placed on the just following of LCM liquid crystal display 10.
The driving mould group 50 includes main circuit board 51 and the multiple and LCM liquid crystal display for connecting with host computer The driving IC52 of 10 connection of screen, main circuit board 51 are connect by flexible circuit board 53 with multiple driving IC42, lamp plate 33 and main electricity Road plate 51 connects, and such main circuit board 51 can control the luminous situation of Mini LED light group on lamp plate 33, while also can control LCM The display situation of liquid crystal display 10.
The backlight membrane material 31 includes lower diffusion sheet 311, lower brightening piece 312 and the upper brightening piece 313 stacked gradually, driving Mould group 50 is in the back side of lower diffusion sheet 311.
The present invention also provides a kind of brightness control method using Mini LED direct-type backlight LCM liquid crystal display die set, The following steps are included:
1) by the Mini LED light group 32 that just shines Mini LED321 and corresponding lamp plate 33 be divided into the square of multiple X*Y Shape lamp block, X and Y are constant;
2) LCM liquid crystal display 10 is divided into multiple K*J pixel control unit matrixes, K and J are constant;
3) the corresponding pixel control unit of each rectangular lamps block;
4) by using image analysis software, mini LED light required for picture respective pixel control unit to be shown is analyzed Brightness, and transfer data to driving mould group 50;
5) each in the corresponding rectangular lamps block of each pixel control unit of data processing that driving mould group 50 is obtained by image analysis software The time span for being electrified timing and mini LED is powered on of Mini LED.
Each Mini LED321 is mounted on lamp plate according to matrix arrangement mode in the Mini LED light group 32 that just shining in step 1) On 33.
The method for the brightness that driving mould group 50 controls picture block of pixels is, utilization similar with TV set row field scanning theory The vision reflection of human eye persists.It is single that pixel control in entire LCM liquid crystal display is handled by electrifying timing sequence and power-on time length Each Mini LED in the corresponding rectangular lamps block of member, to realize the brightness control of picture to be shown, reach energy conservation and promote comparison The purpose of degree.
Cooperated using picture analytical technology by software and hardware using the brightness control method of the display module, to realize figure The control of piece pixel Block Brightness improves in this way in terms of being directed to energy conservation and in terms of contrast, function can be reduced under the same terms 30% or more consumption, contrast promote one times or more.
In conclusion technical solution of the present invention can sufficiently effective realization foregoing invention purpose, and knot of the invention Structure and the principle of work and power have all adequately been verified in embodiment, can reach expected effect and purpose, without departing substantially from this Under the premise of the principle and essence of invention, various changes or modifications can be made to the embodiment of invention.Therefore, the present invention includes All are previously mentioned all replacement contents in range in patent claim, any to be made in scope of the present invention patent Equivalence changes, all category this case application the scope of the patents within.

Claims (6)

1. a kind of Mini LED direct-type backlight LCM liquid crystal display die set, including LCM liquid crystal display, the glue for placing liquid crystal display Frame and backlight module set on the LCM liquid crystal display back side, the back side of backlight module have been equipped with the lower metal frame of support protective effect, Lower metal frame has cavity, and spy is being that the backlight module includes the backlight membrane material for being in the LCM liquid crystal display back side, is in The just luminous Mini LED light group at the backlight membrane material back side and the lamp plate for being used to install Mini LED light group in lower metal frame; The back side of the backlight membrane material is additionally provided with the driving mould group connecting with LCM liquid crystal display, and lamp plate is connect with driving mould group.
2. Mini LED direct-type backlight LCM liquid crystal display die set according to claim 1, spy is being: it is described just Each Mini LED is mounted on lamp plate according to matrix arrangement mode in the Mini LED light group that shines.
3. Mini LED direct-type backlight LCM liquid crystal display die set according to claim 1, spy is being: the drive Dynamic model group includes the main circuit board and multiple driving IC connecting with LCM liquid crystal display for connecting with host computer, main Circuit board is connect by flexible circuit board with multiple driving IC, and lamp plate is connect with main circuit board.
4. Mini LED direct-type backlight LCM liquid crystal display die set according to claim 1, spy is being: the back Light membrane material includes the lower diffusion sheet, lower brightening piece and upper brightening piece stacked gradually, and driving mould group is in the back side of lower diffusion sheet.
5. a kind of brightness using any Mini LED direct-type backlight LCM liquid crystal display die set of Claims 1-4 4 Control method, which comprises the following steps:
1) the Mini LED321 for the Mini LED light group that just shines and corresponding lamp plate are divided into the rectangular lamps block of multiple X*Y, X and Y is constant;
2) LCM liquid crystal display is divided into multiple K*J pixel control units, K and J are constant;
3) the corresponding pixel control unit of each rectangular lamps block;
4) by using image analysis software, mini LED light required for picture respective pixel control unit to be shown is analyzed Brightness, and transfer data to driving mould group;
5) each in the corresponding rectangular lamps block of each pixel control unit of data processing that driving mould group is obtained by image analysis software The time span for being electrified timing and mini LED is powered on of Mini LED.
6. brightness control method according to claim 5, it is characterised in that: in the Mini LED light group that just shining in step 1) Each Mini LED is mounted on lamp plate according to matrix arrangement mode.
CN201811405429.3A 2018-11-23 2018-11-23 A kind of Mini LED direct-type backlight LCM liquid crystal display die set and brightness control method Pending CN109239979A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109782487A (en) * 2019-02-19 2019-05-21 惠州市华星光电技术有限公司 Liquid crystal display
CN110985902A (en) * 2019-12-30 2020-04-10 上海摩软通讯技术有限公司 MiniLED assembling method and assembly
CN114019716A (en) * 2021-08-26 2022-02-08 苏州东山精密制造股份有限公司 Mini LED liquid crystal display module and control circuit thereof
WO2024198215A1 (en) * 2023-03-29 2024-10-03 苏州源泽物联科技有限公司 High-contrast display apparatus and display system

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Publication number Priority date Publication date Assignee Title
CN102298908A (en) * 2011-09-16 2011-12-28 Tcl光电科技(惠州)有限公司 Dimming method for light-emitting diode (LED) liquid crystal module and direct type LED liquid crystal module
CN103035205A (en) * 2011-10-09 2013-04-10 王勇 Active type dynamic light emitting diode (LED) backlight module applied to large screen liquid crystal display (LCD)
CN107390428A (en) * 2017-07-24 2017-11-24 武汉华星光电技术有限公司 Down straight aphototropism mode set and liquid crystal display
CN108681148A (en) * 2018-04-28 2018-10-19 珠海晨新科技有限公司 A kind of LED backlight and LED display
CN209118020U (en) * 2018-11-23 2019-07-16 深圳市国显科技有限公司 A kind of Mini LED direct-type backlight LCM liquid crystal display die set

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102298908A (en) * 2011-09-16 2011-12-28 Tcl光电科技(惠州)有限公司 Dimming method for light-emitting diode (LED) liquid crystal module and direct type LED liquid crystal module
CN103035205A (en) * 2011-10-09 2013-04-10 王勇 Active type dynamic light emitting diode (LED) backlight module applied to large screen liquid crystal display (LCD)
CN107390428A (en) * 2017-07-24 2017-11-24 武汉华星光电技术有限公司 Down straight aphototropism mode set and liquid crystal display
CN108681148A (en) * 2018-04-28 2018-10-19 珠海晨新科技有限公司 A kind of LED backlight and LED display
CN209118020U (en) * 2018-11-23 2019-07-16 深圳市国显科技有限公司 A kind of Mini LED direct-type backlight LCM liquid crystal display die set

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109782487A (en) * 2019-02-19 2019-05-21 惠州市华星光电技术有限公司 Liquid crystal display
CN110985902A (en) * 2019-12-30 2020-04-10 上海摩软通讯技术有限公司 MiniLED assembling method and assembly
CN114019716A (en) * 2021-08-26 2022-02-08 苏州东山精密制造股份有限公司 Mini LED liquid crystal display module and control circuit thereof
WO2024198215A1 (en) * 2023-03-29 2024-10-03 苏州源泽物联科技有限公司 High-contrast display apparatus and display system

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