CN105895034B - The method of backlight regulating system and adjusting backlight luminance - Google Patents
The method of backlight regulating system and adjusting backlight luminance Download PDFInfo
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- CN105895034B CN105895034B CN201610446445.1A CN201610446445A CN105895034B CN 105895034 B CN105895034 B CN 105895034B CN 201610446445 A CN201610446445 A CN 201610446445A CN 105895034 B CN105895034 B CN 105895034B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
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- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal Display Device Control (AREA)
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Abstract
The present invention provides a kind of backlight regulating system, applied to semi-transparent semi-reflecting liquid crystal display, the backlight regulating system includes the illuminant module being sequentially connected electrically, first computing module, judgment module, second computing module and setting module, the illuminant module reception ambient light signal is converted into electric signal and is transmitted to first computing module, first computing module calculates echo area display brightness value according to the electric signal received, the judgment module controls the backlight according to the result of calculation of the first computing module and opens or closes, second computing module calculates the current value that the backlight needs when the backlight is opened, the calculated current value of second computing module is set as the driving current value of the backlight by the setting module.The present invention also provides a kind of methods of adjusting backlight luminance.Energy saving of the present invention, satisfies the use demand simultaneously.
Description
Technical field
The present invention relates to display technology fields, more particularly, to the side of a kind of backlight regulating system and adjusting backlight luminance
Method.
Background technology
Liquid crystal display has irreplaceable status in modem display devices, it is widely used in Portable movable
The display equipment of electronic product, such as mobile phone, digital camera, palm PC, the mobile products such as GPRS.Panel of LCD is general
Box is formed by color membrane substrates and array substrate, is packaged with liquid crystal layer in the space between two substrates, certainly due to liquid crystal molecule
Body does not shine, it is desirable to provide light source.Therefore, how technical staff will select to drop simultaneously with control light source and raising light source utilization rate
The important content that the electric quantity consumption of low light source is studied as LCD technology.
In the prior art, it is the major way that liquid crystal display obtains light source to be shone using backlight and provide backlight.But
The ratio that the permeable light of backlight accounts for backlight transmitting light is smaller, and backlight source utilization rate is not high, what backlight was consumed
Electricity accounts for the 70%~90% of whole equipment power consumption, due under working condition backlight be constantly in be always on and be maximum brightness shape
State, backlight electric quantity consumption are huge.
Invention content
The technical problem to be solved in the present invention is to provide a kind of methods of backlight regulating system and adjusting backlight luminance, solve
Backlight electric quantity consumption is larger in the prior art, can not meet simultaneously and not only adapt to various working environments, but also energy minimization power supply
The problem of consumption.
In order to solve the above technical problems, on the one hand, the present invention provides a kind of backlight regulating system, it is applied to semi-transparent semi-reflecting liquid
Crystal display, it is characterised in that：The backlight regulating system includes the illuminant module being sequentially connected electrically, the first computing module, sentences
Disconnected module, the second computing module and setting module, the illuminant module reception ambient light signal are converted into electric signal and are transmitted to institute
The first computing module is stated, first computing module calculates echo area display brightness value, institute according to the electric signal received
It states judgment module to be opened or closed according to the result of calculation of the first computing module control backlight, second computing module
Calculate the current value that the backlight needs when the backlight is opened, the setting module is by second computing module
Calculated current value is set as the driving current value of the backlight.
Further, the backlight of the backlight regulating system control semi-transmission semi-reflection LCD, it is described semi-transparent
Half-reflection liquid crystal display includes echo area and transmission area, and the echo area includes reflecting layer, and the echo area is with the reflection
The ambient light of layer reflection is as work light, and the transmission area is using the light that the backlight provides as work light.
Further, the reflecting layer includes the reflecting surface of smooth shape, and first computing module utilizes the reflecting surface
The echo area brightness value is calculated in the electric signal that reflectivity is transmitted with the illuminant module.
Further, the judgment module includes receiving module, standard module and control module, and the judgment module includes connecing
Module, standard module and control module are received, the receiving module receives the result of calculation of the first computing module, the standard module
Reception system it is preset need to brightness value to be shown, the control module echo area display brightness value in advance
The need brightness value to be shown of setting, and the backlight is controlled according to comparison result and is opened or closed.
Further, second computing module includes transmission computing module, backlight computing module and current calculation module, institute
State transmission computing module calculate it is preset need to the difference of brightness value to be shown and the echo area brightness value obtain
It penetrates area's display brightness value, and transmission area display brightness value and transmission area is calculated to the transmitance of light by backlight computing module
For ratio to obtain backlight display brightness value, the current calculation module calculates the driving current value of the backlight, the back of the body
The driving current value of light source is the ratio of the backlight display brightness value and electric current brightness transition coefficient.
Further, the area of the echo area is more than the area of the transmission area.
Further, the illuminant module includes sensitive probe and signal conversion module, and the sensitive probe receives optical signal
And the optical signal is converted to by electric signal output by the signal conversion module.
Further, the setting module is electrically connected with the backlight, the driving current value control of the setting module setting
Make the back light source brightness.
On the other hand, the present invention provides a kind of method of adjusting backlight luminance, including：
There is provided backlight regulating system, the backlight regulating system include illuminant module, the first computing module, judgment module,
Second computing module and setting module,
The optical signal of ambient light is converted into electric signal by the illuminant module and is sent to first computing module；
First computing module calculates echo area display brightness value according to the electric signal received；
The result of calculation of first computing module is compared and is matched in the judgment module, the judgment module
The backlight is controlled according to the result of calculation of the first computing module to open or close, second computing module is in the backlight
Source calculates the current value of backlight needs when opening, the setting module is by the calculated current value of the second computing module
It is set as the driving current value of the backlight.
Further, " optical signal of ambient light is converted into electric signal by the illuminant module and is sent to first meter
Calculate module " step includes：The illuminant module includes sensitive probe and signal conversion module, and ambient light signal is by the photosensitive spy
After head receives, then by the signal conversion module optical signal to be converted to electric signal defeated to first computing module
Go out.
Beneficial effects of the present invention are as follows：Backlight regulating system and the method control transflective liquid crystal for adjusting backlight are aobvious
The backlight for showing device, when in echo area, display brightness meets need brightness value to be shown, backlight is closed, only echo area work
Make, energy saving；When in echo area, display brightness cannot meet need brightness value to be shown, backlight partially opens, specifically
The degree of opening is obtained by accurately calculating, and the drive current adjustment brightness by changing lamp bar, and echo area is same with transmission area
When on-the-job satisfaction need brightness value and reduce electrical source consumption to greatest extent.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other apparent modes of texturing are obtained according to these attached drawings.
Fig. 1 is backlight regulating system structural schematic diagram provided in an embodiment of the present invention；
Fig. 2 is that semi-transmission semi-reflection LCD backlight provided in an embodiment of the present invention closes work sheet；
Fig. 3 is that semi-transmission semi-reflection LCD backlight provided in an embodiment of the present invention opens work sheet.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 is backlight regulating system structural schematic diagram provided in an embodiment of the present invention, and backlight regulating system is applied to semi-transparent
Half-reflection liquid crystal display, with reference to Fig. 2 and Fig. 3, semi-transmission semi-reflection LCD includes liquid crystal display panel and backlight 10,
Wherein liquid crystal display panel includes echo area 01 and transmission area 02, and echo area 01 relies on the reflective surface ambient light in reflecting layer 30
Line 11.When only echo area 01 works, backlight 10 is closed, and when echo area 01 is worked at the same time with transmission area 02, backlight 10 is opened.The back of the body
Light source 10 is composed of the LED light bar that LED light forms, and the driving current value by controlling LED light can change the bright of LED light
Degree, the i.e. brightness of backlight.When backlight regulating system control semi-transmission semi-reflection LCD is in above two working condition
Backlight 10 the brightness for turning off or on and opening.
Backlight regulating system includes illuminant module 102, the first computing module 104, judgment module 106, the second computing module
108 and setting module 110.Ambient light is irradiated on the sensitive probe 1022 of illuminant module 102, and by signal conversion module 1024
It converts the optical signal that ambient light provides to electric signal and is sent to the first computing module 104, ambient light signal is ambient light
11 brightness.First computing module 104 obtains echo area brightness using environmental light brightness × reflecting layer reflectivity.Judgment module
106 receiving module 1062 receives this as a result, standard module 1064 receives the need brightness to be shown of default, control simultaneously
Echo area brightness is compared by module 1066 with brightness to be shown is needed, and in a kind of embodiment, control module 1066 uses 4
Position micro-control unit.When echo area brightness, which is more than, needs brightness to be shown, control module 1066 sends instruction and closes backlight
10；When echo area brightness, which is less than, needs brightness to be shown, control module 1066 sends instruction and opens backlight 10, and will reflection
Area's brightness is sent to the second computing module 108 with electric signal.Second computing module 108 includes that the transmission of processing signal successively calculates
Module 1082, backlight computing module 1084 and current calculation module 1086, transmission computing module 1082 calculates need to be to be shown bright
As transmission area brightness, backlight computing module 1084 utilizes transmissivity by transmission area brightness transition for degree and the difference of echo area brightness
For back light source brightness, current calculation module 1086 is calculated as obtaining the back light source brightness and need to carry using electric current/brightness transition coefficient
The driving current of confession.Setting module 110 receives the result of calculation of current calculation module 1086, and sets it to the drive of LED light
Streaming current directly controls the brightness of LED light.
Backlight regulating system makes transflective liquid crystal show by judging that ambient light intensity changes backlight working condition
The mode of operation of power supply is most saved in device selection, ensures to meet wanting for energy saving on the basis of display normally shows image
It asks.
Please refer to Fig. 2, under outdoor or indoor bright light environments, only echo area 01 works, and backlight 10 is closed, ambient light 11
Color film polaroid 502, color membrane substrates 202, public electrode 602 and liquid crystal 70 are sequentially passed through, the smooth reflection in reflecting layer 30
It is reflected on face, reflection light sequentially passes through liquid crystal 70, public electrode 602, color membrane substrates 202 and color film polaroid 502 simultaneously
Image is shown in LCD display plate surface.The surface of emission area in wherein reflecting layer 30 is as big as possible, increases the face of echo area 01
Product can reflect more ambient lights 11.
In the working condition of only echo area 01 work, reflecting layer 30 is reflected ambient light 11 and as light source in display surface
Plate shows image, greatly reduces the electric quantity consumption of equipment, and be effectively utilized ambient light.
Please refer to Fig. 3, under outdoor or indoor dark surrounds, transmission area 02 is worked together with echo area 01, and backlight 10 is opened
It opens, backlight regulating system adjusts the back light source brightness that need to be provided according to environmental light brightness.Backlight light 104 is in the saturating of liquid crystal display panel
Area 02 is penetrated to sequentially pass through array polaroid 504, array substrate 204, liquid crystal 70, color membrane substrates 202 and color film polaroid 502 and show
Diagram picture enters human eye.After backlight light 12 penetrates the transmission area 02 of liquid crystal display panel, reflected with the emission layer 30 of echo area 01
Faint 12 collective effect of ambient light forms image on a display panel.Wherein, reflecting layer 30 relies on transparent resin layer 40
It is fixed between color membrane substrates 202 and array substrate 204, in a kind of embodiment, between reflecting layer 30 and color membrane substrates 202
Distance is the half of the distance between array substrate 204 and color membrane substrates 202 so that into transmission area in liquid crystal display panel 02 and
The equivalent optical path of the light of echo area 01, to ensure that transmission area 02 and the aberration of echo area 01 are smaller and matching in color.
It is weaker or black in light that echo area 01 with 02 cooperative working condition of transmission area enables liquid crystal display to meet
The demand to work under dark working environment, while ambient light 11 provides light source, phase for liquid crystal display panel jointly with backlight light 12
Compared with light source is provided by back light merely, which reduces by the electric quantity consumption of backlight, while backlight is bright
It spends adjustable feature and has reasonably used backlight, further reduced the power consumption of liquid crystal display.
The method of backlight regulating system adjusting backlight luminance is as follows：
The reception external environment optical signal of sensitive probe 1022 of step 1, illuminant module 102, signal conversion module 1024 will
The optical signal that ambient light provides is converted into electric signal and is sent to the first computing module 104.
Step 2, the first computing module 104 calculate echo area 01 according to the environmental light brightness that illuminant module 102 receives and show
Brightness.According to formula：The reflectivity in echo area brightness=environmental light brightness × echo area reflecting layer, the wherein reflection in reflecting layer 30
Rate is fixed value, can be measured in advance, and echo area brightness is calculated.
Step 3, judgment module 106 determine backlight working condition.Receiving module 1062 receives the first computing module 104 and passes
The echo area luminance signal passed, standard module 1064 receive the need brightness to be shown of default, and control module 1066 will be anti-
Area's brightness is penetrated to be compared with brightness to be shown is needed, when echo area brightness, which is more than, needs brightness to be shown, control module
1066, which send instruction, closes backlight 10；When echo area brightness, which is less than, needs brightness to be shown, the transmission of control module 1066 refers to
It enables and opens backlight 10, and echo area brightness is sent to the second computing module 108 with electric signal.
Step 4, the second computing module 108 calculate the driving current of backlight.It transmits computing module 1082 and calculates transmission area
02 needs brightness value to be shown, according to formula：Transmission area brightness=need brightness to be shown-echo area brightness, being calculated needs
Brightness to be shown；Backlight computing module 1084, which calculates backlight, needs brightness value to be shown, according to formula：Back light source brightness=
Transmitance of the transmission area brightness/transmission area to light；Current calculation module 1086 calculates the current value of LED light, according to formula：LED
Current value=back light source brightness of lamp/electric current brightness transition coefficient, wherein electric current brightness transition coefficient are known fixed value.
The current value for the LED light being calculated is set as the driving current of LED light by step 5, setting module 110, and straight
Connect the brightness of control LED light.
Adjusting backlight luminance method provided in an embodiment of the present invention is experienced ambient light power and is judged by illuminant module 102
Module 106 judges brightness demand to determine the switch of backlight, meets need brightness to be shown in the environmental light brightness of reflection
When value, backlight is closed, and only echo area works, energy saving；It is to be shown the need cannot to be met in the environmental light brightness of reflection
When brightness value, backlight is opened, and the degree specifically opened is obtained by accurately calculating, and the electricity by changing LED light bar
Flow valuve controls, and this method rationally utilizes ambient light, meet the brightness value of needs and reduces electrical source consumption to greatest extent.
Above disclosed is only several preferred embodiments of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and is weighed according to the present invention
Equivalent variations made by profit requirement, still belong to the scope covered by the invention.
Claims (9)
1. a kind of backlight regulating system is applied to semi-transparent semi-reflecting liquid crystal display, it is characterised in that：The backlight regulating system packet
The illuminant module being sequentially connected electrically, the first computing module, judgment module, the second computing module and setting module are included, it is described photosensitive
Module reception ambient light signal is converted into electric signal and is transmitted to first computing module, and first computing module is according to reception
The electric signal arrived calculates echo area display brightness value, and the judgment module is controlled according to the result of calculation of the first computing module
Backlight opens or closes, and second computing module calculates the electric current that the backlight needs when the backlight is opened
The calculated current value of second computing module is set as the driving current value of the backlight by value, the setting module,
Second computing module includes transmission computing module, backlight computing module and current calculation module, the transmission computing module
The difference for calculating preset need brightness value to be shown and echo area brightness value obtains transmission area display brightness value, and leads to
Crossing backlight computing module, to calculate transmission area display brightness value and transmission area aobvious to obtain backlight to the ratio of the transmitance of light
Show that brightness value, the current calculation module calculate the driving current value of the backlight, the driving current value of the backlight is
The ratio of the backlight display brightness value and electric current brightness transition coefficient.
2. backlight regulating system according to claim 1, which is characterized in that the backlight regulating system control is semi-transparent semi-reflecting
The backlight of formula liquid crystal display, the semi-transmission semi-reflection LCD include echo area and transmission area, the reflection
Area includes reflecting layer, and the echo area is using the ambient light that the reflecting layer is reflected as work light, and the transmission area is with institute
The light of backlight offer is stated as work light.
3. backlight regulating system according to claim 2, which is characterized in that the reflecting layer includes the reflection of smooth shape
Institute is calculated using the electric signal that the reflectivity of the reflecting surface is transmitted with the illuminant module in face, first computing module
State echo area brightness value.
4. backlight regulating system according to claim 3, which is characterized in that the judgment module includes receiving module, mark
Quasi-mode block and control module, the receiving module receive the result of calculation of the first computing module, and the standard module receives system
Preset need brightness value to be shown, the control module echo area display brightness value and preset need
Brightness value to be shown, and the backlight is controlled according to comparison result and is opened or closed.
5. backlight regulating system according to claim 1, which is characterized in that the area of the echo area is more than the transmission
The area in area.
6. backlight regulating system according to claim 1, which is characterized in that the illuminant module includes sensitive probe and letter
Number conversion module, the sensitive probe receive optical signal and the optical signal are simultaneously converted to telecommunications by the signal conversion module
Number output.
7. backlight regulating system according to claim 1, which is characterized in that the setting module is electrically connected with the backlight
It connects, the driving current value of the setting module setting controls the back light source brightness.
8. a kind of method of adjusting backlight luminance, which is characterized in that including：
Backlight regulating system is provided, the backlight regulating system includes illuminant module, the first computing module, judgment module, second
Computing module and setting module,
The optical signal of ambient light is converted into electric signal by the illuminant module and is sent to first computing module；
First computing module calculates echo area display brightness value according to the electric signal received；
The result of calculation of first computing module is compared and is matched in the judgment module, the judgment module according to
The result of calculation control backlight of first computing module opens or closes, and second computing module is when the backlight is opened
The current value of backlight needs is calculated, the calculated current value of the second computing module is set as institute by the setting module
The driving current value of backlight is stated, second computing module includes transmission computing module, backlight computing module and Current calculation
Module, the transmission computing module calculate the difference of preset need brightness value and the echo area brightness value to be shown
Transmission area display brightness value is obtained, and transmission area display brightness value is calculated with transmission area to the saturating of light by backlight computing module
The ratio of rate is crossed to obtain backlight display brightness value, the current calculation module calculates the driving current value of the backlight,
The driving current value of the backlight is the ratio of the backlight display brightness value and electric current brightness transition coefficient.
9. the method for adjusting backlight luminance according to claim 8, which is characterized in that " optical signal of ambient light passes through institute
Illuminant module is stated to be converted into electric signal and be sent to first computing module " step includes：The illuminant module includes photosensitive
Probe and signal conversion module, after ambient light signal is received by the sensitive probe, then by the signal conversion module by institute
It states optical signal and is converted to electric signal and exported to first computing module.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107517396A (en) * | 2017-08-15 | 2017-12-26 | 深圳Tcl新技术有限公司 | The display shading process and display of television set, television set |
| CN108151774A (en) * | 2017-11-29 | 2018-06-12 | 苏州诺纳可电子科技有限公司 | A kind of photoelectric sensor |
| CN108053804B (en) * | 2017-12-29 | 2020-07-31 | 深圳Tcl新技术有限公司 | Configuration method and device for power supply current of display terminal and readable storage medium |
| CN111916032B (en) * | 2019-05-10 | 2023-06-27 | 京东方科技集团股份有限公司 | Gamma adjustment method and device for display panel |
| CN113589579A (en) * | 2021-07-23 | 2021-11-02 | Tcl华星光电技术有限公司 | Semi-transparent semi-reflection display device |
| CN114512104A (en) * | 2022-04-20 | 2022-05-17 | 宏齐光电子(深圳)有限公司 | Control method and device for energy-saving LED mobile phone backlight source |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6144359A (en) * | 1998-03-30 | 2000-11-07 | Rockwell Science Center | Liquid crystal displays utilizing polymer dispersed liquid crystal devices for enhanced performance and reduced power |
| CN1652660A (en) * | 2003-11-11 | 2005-08-10 | 三星电子株式会社 | Power conservation for a display apparatus |
| US6947017B1 (en) * | 2001-08-29 | 2005-09-20 | Palm, Inc. | Dynamic brightness range for portable computer displays based on ambient conditions |
| CN1782820A (en) * | 2004-12-02 | 2006-06-07 | 日本电气株式会社 | Liquid crystal display device and electronic device equipped with the same |
| CN102290022A (en) * | 2010-06-21 | 2011-12-21 | 李晓 | Self-adaptive brightness balancing method and complementary multi-screen electronic equipment |
| CN102737612A (en) * | 2011-04-08 | 2012-10-17 | 广达电脑股份有限公司 | Multi-mode display device and power saving method thereof |
-
2016
- 2016-06-20 CN CN201610446445.1A patent/CN105895034B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6144359A (en) * | 1998-03-30 | 2000-11-07 | Rockwell Science Center | Liquid crystal displays utilizing polymer dispersed liquid crystal devices for enhanced performance and reduced power |
| US6947017B1 (en) * | 2001-08-29 | 2005-09-20 | Palm, Inc. | Dynamic brightness range for portable computer displays based on ambient conditions |
| CN1652660A (en) * | 2003-11-11 | 2005-08-10 | 三星电子株式会社 | Power conservation for a display apparatus |
| CN1782820A (en) * | 2004-12-02 | 2006-06-07 | 日本电气株式会社 | Liquid crystal display device and electronic device equipped with the same |
| CN102290022A (en) * | 2010-06-21 | 2011-12-21 | 李晓 | Self-adaptive brightness balancing method and complementary multi-screen electronic equipment |
| CN102737612A (en) * | 2011-04-08 | 2012-10-17 | 广达电脑股份有限公司 | Multi-mode display device and power saving method thereof |
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