CN105096844A - Panel and electronic device - Google Patents
Panel and electronic device Download PDFInfo
- Publication number
- CN105096844A CN105096844A CN201510513822.4A CN201510513822A CN105096844A CN 105096844 A CN105096844 A CN 105096844A CN 201510513822 A CN201510513822 A CN 201510513822A CN 105096844 A CN105096844 A CN 105096844A
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- Prior art keywords
- subsignal
- frequency
- dutycycle
- control signal
- backlight
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Classifications
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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
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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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal Display Device Control (AREA)
- Liquid Crystal (AREA)
Abstract
The invention provides a panel and a display device. The panel includes a backlight module set and a backlight driving chip, wherein the backlight driving chip is used for generating backlight control signals, wherein the backlight control signals are pulse width modulation signals and are used for driving the backlight module set, the duty cycle of the backlight control signal is a preset duty cycle, and the frequency of at least one part of the backlight control signals is smaller than or equal to a preset frequency.
Description
Technical field
The present invention relates to display field, particularly relate to a kind of panel and electronic installation.
Background technology
Along with liquid crystal indicator (LiquidCrystalDisplay, LCD) by comprising backlight, backlight driving chip, display panels and display panels driving chip, described backlight is used for providing area source for display panels, described driving chip is for driving backlight, and described display panels is for showing the information such as word, image, data.In order to the power consumption of backlight, the method for content-adaptive brilliance control (ContentAdaptiveBrightnessControl, CABC) is usually adopted to save the power consumption of backlight.Below CABC method is described below.Processor (CenterProcessUnit, CPU) data or image that need display are transferred to display panels driving chip by certain interface mode, display panels driving chip is after the data receiving required display or image, certain analyzing and processing is carried out to described data or image, export a pulse width control (PulseWidthModulation, PWM) signal, the dutycycle of described pwm signal is certain and frequency of operation is in fixing high frequency conversion state always, such as, the dutycycle of described pwm signal is up to hundreds of KHZ.The display panels driving chip that the pwm signal being always in fixing high-frequency transition status is is in high frequency conversion state for a long time, reduce the serviceable life of described display panels driving chip, and cause the huge power consumption of display panels driving chip.
Summary of the invention
The invention provides a kind of panel, described panel comprises backlight module and backlight driving chip, described backlight driving chip is for generation of backlight control signal, described backlight control signal is for driving described backlight module, wherein, described backlight control signal is pulse width modulating signal, and the dutycycle of described backlight control signal is for presetting dutycycle, and in described backlight control signal, the frequency of at least part of signal is less than or equal to predeterminated frequency.
Wherein, described backlight control signal comprises the first subsignal and the second subsignal, described first subsignal and the second subsignal are pulse width modulating signal, the dutycycle of described first subsignal is the first dutycycle, the frequency of described first subsignal is first frequency, the dutycycle of described second subsignal is the second dutycycle, the frequency of described second subsignal is second frequency, wherein, described first dutycycle equals described second dutycycle, described second frequency is less than described first frequency, and described first frequency equals described predeterminated frequency.
Wherein, described first subsignal and described second subsignal are all in units of frame, and described first subsignal and described second subsignal periodically intersect output.
Wherein, in one-period, preset in frame first and export described first subsignal, preset in frame exporting the second subsignal second.
Wherein, described first subsignal and described second subsignal are all in units of the time, and be that cycle sex-intergrade exports with frame, in same frame, described first subsignal intersects with described second subsignal and exports.
Present invention also offers a kind of electronic installation, described electronic installation comprises panel, described panel comprises backlight module and backlight driving chip, described backlight driving chip is for generation of backlight control signal, described backlight control signal is for driving described backlight module, and wherein, described backlight control signal is pulse width modulating signal, the dutycycle of described backlight control signal is for presetting dutycycle, and in described backlight control signal, the frequency of at least part of signal is less than or equal to predeterminated frequency.
Wherein, described backlight control signal comprises the first subsignal and the second subsignal, described first subsignal and the second subsignal are pulse width modulating signal, the dutycycle of described first subsignal is the first dutycycle, the frequency of described first subsignal is first frequency, the dutycycle of described second subsignal is the second dutycycle, the frequency of described second subsignal is second frequency, wherein, described first dutycycle equals described second dutycycle, described second frequency is less than described first frequency, and described first frequency equals described predeterminated frequency.
Wherein, described first subsignal and described second subsignal are all in units of frame, and described first subsignal and described second subsignal periodically intersect output.
Wherein, in one-period, preset in frame first and export described first subsignal, preset in frame exporting the second subsignal second.
Wherein, described first subsignal and described second subsignal are all in units of the time, and be that cycle sex-intergrade exports with frame, in same frame, described first subsignal intersects with described second subsignal and exports.
Compared to prior art, in the present invention, by by the set of frequency of signal at least part of in described backlight control signal for being less than or equal to predeterminated frequency, the frequency of the pulse width modulating signal controlling described backlight module can be made lower than of the prior art, thus, extend the serviceable life of described backlight driving chip.And the dutycycle of described secondary signal, for presetting dutycycle, can ensure the constant of the voltage and current of the light source in described backlight module, thus ensure that the brightness of the light that described backlight module provides for described liquid crystal display module.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the panel of the present invention one better embodiment.
Fig. 2 is the structural representation of the backlight module of the present invention one better embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, Fig. 1 is the structural representation of the panel of the present invention one better embodiment.Described panel 10 comprises backlight module 100 and backlight driving chip 500.Described backlight driving chip 500 is for generation of backlight control signal, described backlight control signal is for driving described backlight module 100, wherein, described backlight control signal is pulse width modulating signal, the dutycycle of described backlight control signal is for presetting dutycycle, and in described backlight control signal, the frequency of at least part of signal is less than or equal to predeterminated frequency.
Below the panel 10 of an embodiment is described in detail as follows.Described panel 10 comprises liquid crystal display module 200, processing unit 300, liquid crystal display drive chip 400, backlight driving chip 500 and backlight module 100.Described liquid crystal display module 200 is for showing the information such as word, image, data.Described processing unit 300 is for being transferred to described liquid crystal display drive chip 400 by data-signal, wherein, described data-signal characterizes the signal needing to carry out the content shown on described liquid crystal display module 200.Described liquid crystal display drive chip 400 works for driving described liquid crystal display module 200.Described backlight driving chip 500 is for generation of backlight control signal, wherein, described backlight control signal is pulse width modulating signal, the dutycycle of described backlight control signal is for presetting dutycycle, the frequency of described backlight control signal is unfixed, and the frequency of described backlight control signal signal is less than or equal to predeterminated frequency.Wherein, described predeterminated frequency is the frequency of pulse width control signal in prior art, and such as, described predeterminated frequency is 500 KHZ.The contiguous described liquid crystal display module 200 of described backlight module 100 is arranged, for providing light for described liquid crystal display module 200.
In the present embodiment, by by the set of frequency of signal at least part of in described backlight control signal for being less than or equal to predeterminated frequency, the frequency of the pulse width modulating signal controlling described backlight module 100 can be made lower than of the prior art, thus, extend the serviceable life of described backlight driving chip 500.And the dutycycle of described secondary signal, for presetting dutycycle, can ensure the constant of the voltage and current of the light source in described backlight module 100, thus ensure that the brightness of the light that described backlight module 100 provides for described liquid crystal display module 200.
In one embodiment, described backlight control signal comprises the first subsignal and the second subsignal.Described first subsignal and described second subsignal are pulse width modulating signal, and the dutycycle of described first subsignal is the first dutycycle, and the frequency of described first subsignal is first frequency.The dutycycle of described second subsignal is the second dutycycle, and the frequency of described second subsignal is second frequency.Described first dutycycle equals described second dutycycle, described second frequency hour described first frequency, and described first frequency equals predeterminated frequency.In one embodiment, described first subsignal and described second subsignal are all in units of frame, and described first subsignal and described second subsignal periodically intersect output.Preferably, in one-period, preset in frame first and export described first subsignal, preset in frame exporting the second subsignal second.In the present embodiment, can be export the first subsignal in a frame or multiframe (N frame), next in multiframe (M frame, N and M is unequal), export the second subsignal; Also can be export the second subsignal in multiframe (N frame), then in a frame or multiframe (M frame, N and M is unequal), export the first subsignal.
In another embodiment, described first subsignal and described second subsignal are all in units of the time, and be that cycle sex-intergrade exports with frame, in same frame, described first subsignal intersects with described second subsignal and exports.
Below described backlight module 100 is described below.See also Fig. 2, Fig. 2 is the structural representation of the backlight module of the present invention one better embodiment.Described backlight module 100 comprises backboard 110, light guide plate 120, light source 130 and glue frame 140.Described backboard 110 comprises base plate 111 and the first side wall 112 that extends to same direction along the both sides of described base plate 111 and the second sidewall 113.The contiguous described base plate 111 of described light guide plate 120 is arranged, and described light guide plate 120 comprises the first side 121 and the second side 122 be oppositely arranged.The contiguous described light source 130 in described first side 121 is arranged, using the incidence surface as described light guide plate 120.Described glue frame 140 is arranged on described base plate 111, and described glue frame 140 comprises the 3rd sidewall 141 and the 4th sidewall 142.Described 3rd sidewall 141 is arranged between described the first side wall 112 and described light source 130, and described 4th sidewall 142 is arranged between described second sidewall 113 and described second side 122.Described glue frame 140 also comprises at least one hold-down mechanism 143, described hold-down mechanism 143 extends to the second side 122 of described light guide plate 120 from described 4th sidewall 142, and described second side 122 supported in described light guide plate 120, to make the exiting surface 131 of the contiguous described light source in the first side 121 of described light guide plate 120, and described hold-down mechanism 143 is one-body molded with described glue frame 140.
Described hold-down mechanism 143 comprises support division 1431 and connecting portion 1432, and described support division 1431 supports described second side 122 of described light guide plate 120, and described connecting portion 1432 connects the 4th sidewall 142 of described glue frame 140 and described support division 1431.
Preferably, the number of described hold-down mechanism 143 is more than or equal to two.When the number of described hold-down mechanism 143 is more than or equal to two, it is evenly arrange that described hold-down mechanism 143 supports in the position of described light guide plate 120.Thus, the acting force that described hold-down mechanism 143 applies described light guide plate 120 is uniform, and so that the acting force preventing hold-down mechanism 143 from applying described light guide plate 120 is uneven, light guide plate 120 that is that cause is damaged or the light guide plate 120 position skew that causes and make the light inlet of light guide plate 120 uneven.
When the number of described hold-down mechanism 143 is three, for convenience of description, three described hold-down mechanisms 143 called after first hold-down mechanism respectively, second hold-down mechanism and the 3rd hold-down mechanism, described first hold-down mechanism, described second hold-down mechanism and described 3rd hold-down mechanism support respectively on described second side 122, described first hold-down mechanism supports the central authorities of the second side 122 in described light guide plate 120, described second hold-down mechanism supports to support in the position of described second side 122 and described 3rd hold-down mechanism and supports the positional symmetry on described second side 122 in the position of described second side 122 about described first hold-down mechanism.Thus, the acting force that described first hold-down mechanism, described second hold-down mechanism and described 3rd hold-down mechanism apply described light guide plate 120 is uniform, and to prevent described hold-down mechanism from applying that acting force is uneven to described light guide plate 120, light guide plate 120 that is that cause is damaged or the light guide plate 120 position skew that causes and make the light inlet of described light guide plate 120 uneven.
In the present embodiment, described backlight module 100 also comprises reflector plate 150 and at least one blooming piece 160.Described reflector plate 150 is arranged between described light guide plate 120 and the base plate 111 of described backlight 110.When the light that described light source 130 sends goes out to shoot out from the surface of the contiguous described reflector plate 150 of described light guide plate 120, described reflector plate 150 is close to the light reflection of the surperficial outgoing of described reflector plate 150 in described light guide plate 120 by from described light guide plate 120, to reduce light loss.Described light guide plate 120 also comprises an exiting surface 123, the exiting surface 123 of described light guide plate 120 is connected with the incidence surface (i.e. the first side 121) of described light guide plate 120, and described exiting surface 123 is the surface of described light guide plate 123 away from described base plate 111.From exiting surface 123 outgoing from described light guide plate 120 of the light of the incidence surface incidence of described light guide plate 120, so that the light sent from light source 130 is converted to area source.The exiting surface 123 of the contiguous described light guide plate 120 of described blooming piece 160 is arranged.In the present embodiment, three described blooming pieces 160 are stacked together, are then set directly on the exiting surface 123 of described light guide plate 120.So-called directly setting refers between described blooming piece 160 and described light guide plate 120 very close to each other.Understandably, in other embodiments, described blooming piece 160 can not be set directly on the exiting surface 123 of described light guide plate 120, is provided with gap between described blooming piece 160 and the exiting surface 123 of described light guide plate 120.Described blooming piece 160 is for making the light of exiting surface 123 outgoing from described light guide plate 120 more even.
Preferably, between described glue frame 140 and the exiting surface 123 of described light guide plate 120, between described glue frame 140 and described light source 130, and be connected by adhesive structure 170 between described glue frame 140 with other elements (such as liquid crystal display module 200).Described adhesive structure 170 for fixing described glue frame 140 and described light guide plate 120, described glue frame 140 and described light source 130, and described glue frame 140 and other elements.In one embodiment, described adhesive structure 170 is double faced adhesive tape.
In backlight module 100 of the present invention, glue frame 140 due to described backlight module 100 is provided with at least one hold-down mechanism 143, and described hold-down mechanism 143 supports the second side 122 in described light guide plate 120, to make the exiting surface of the contiguous described light source 130 in the first side 121 of described light guide plate 120, therefore, the light that described light source 130 sends can enter into described light guide plate 120 more, increases the light inlet rate of described light guide plate 120.Further, because described hold-down mechanism 143 is one-body molded with the 4th sidewall 142 in described glue frame 140, described hold-down mechanism 143 can not loosen, thus plays and compress effect better.
In addition, present invention also offers a kind of electronic installation, described electronic installation comprises panel 10 described above, does not repeat them here.In the present embodiment, described electronic installation includes but are not limited to smart mobile phone (SmartPhone), internet device (MobileInternetDevice, MID), e-book, panel computer, portable broadcast station (PlayStationPortable, or the portable set such as personal digital assistant (PersonalDigitalAssistant, PDA) PSP).
Above disclosedly be only a kind of preferred embodiment of the present invention, certainly the interest field of the present invention can not be limited with this, one of ordinary skill in the art will appreciate that all or part of flow process realizing above-described embodiment, and according to the equivalent variations that the claims in the present invention are done, still belong to the scope that invention is contained.
Claims (10)
1. a panel, it is characterized in that, described panel comprises backlight module and backlight driving chip, described backlight driving chip is for generation of backlight control signal, described backlight control signal is for driving described backlight module, and wherein, described backlight control signal is pulse width modulating signal, the dutycycle of described backlight control signal is for presetting dutycycle, and in described backlight control signal, the frequency of at least part of signal is less than or equal to predeterminated frequency.
2. panel as claimed in claim 1, it is characterized in that, described backlight control signal comprises the first subsignal and the second subsignal, described first subsignal and the second subsignal are pulse width modulating signal, the dutycycle of described first subsignal is the first dutycycle, the frequency of described first subsignal is first frequency, the dutycycle of described second subsignal is the second dutycycle, the frequency of described second subsignal is second frequency, wherein, described first dutycycle equals described second dutycycle, described second frequency is less than described first frequency, and described first frequency equals described predeterminated frequency.
3. panel as claimed in claim 2, is characterized in that, described first subsignal and described second subsignal are all in units of frame, and described first subsignal and described second subsignal periodically intersect output.
4. panel as claimed in claim 3, is characterized in that, in one-period, presets in frame export described first subsignal first, preset in frame exporting the second subsignal second.
5. panel as claimed in claim 2, is characterized in that, described first subsignal and described second subsignal, all in units of the time, are that cycle sex-intergrade exports with frame, and in same frame, described first subsignal intersects with described second subsignal and exports.
6. an electronic installation, it is characterized in that, described electronic installation comprises panel, described panel comprises backlight module and backlight driving chip, and described backlight driving chip is for generation of backlight control signal, and described backlight control signal is for driving described backlight module, wherein, described backlight control signal is pulse width modulating signal, and the dutycycle of described backlight control signal is for presetting dutycycle, and in described backlight control signal, the frequency of at least part of signal is less than or equal to predeterminated frequency.
7. electronic installation as claimed in claim 6, it is characterized in that, described backlight control signal comprises the first subsignal and the second subsignal, described first subsignal and the second subsignal are pulse width modulating signal, the dutycycle of described first subsignal is the first dutycycle, the frequency of described first subsignal is first frequency, the dutycycle of described second subsignal is the second dutycycle, the frequency of described second subsignal is second frequency, wherein, described first dutycycle equals described second dutycycle, described second frequency is less than described first frequency, and described first frequency equals described predeterminated frequency.
8. electronic installation as claimed in claim 7, is characterized in that, described first subsignal and described second subsignal are all in units of frame, and described first subsignal and described second subsignal periodically intersect output.
9. electronic installation as claimed in claim 8, is characterized in that, in one-period, presets in frame export described first subsignal first, preset in frame exporting the second subsignal second.
10. electronic installation as claimed in claim 7, it is characterized in that, described first subsignal and described second subsignal are all in units of the time, and be that cycle sex-intergrade exports with frame, in same frame, described first subsignal intersects with described second subsignal and exports.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510513822.4A CN105096844A (en) | 2015-08-20 | 2015-08-20 | Panel and electronic device |
| PCT/CN2015/091676 WO2017028367A1 (en) | 2015-08-20 | 2015-10-10 | Panel and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510513822.4A CN105096844A (en) | 2015-08-20 | 2015-08-20 | Panel and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105096844A true CN105096844A (en) | 2015-11-25 |
Family
ID=54577138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510513822.4A Pending CN105096844A (en) | 2015-08-20 | 2015-08-20 | Panel and electronic device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105096844A (en) |
| WO (1) | WO2017028367A1 (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1971376A (en) * | 2005-11-25 | 2007-05-30 | 群康科技(深圳)有限公司 | Backlight module and LCD device |
| CN101282610A (en) * | 2008-05-09 | 2008-10-08 | 西安交通大学 | Method for adjusting light of plane fluorescent lamp |
| CN101547540A (en) * | 2008-03-07 | 2009-09-30 | 凹凸电子（武汉）有限公司 | Backlight controller, method for driving light sources, and display system |
| US20100309194A1 (en) * | 2009-06-08 | 2010-12-09 | Samsung Electronics Co., Ltd. | Method of dimming a light source and display apparatus for performing the method |
| CN102014543A (en) * | 2010-07-02 | 2011-04-13 | 凹凸电子（武汉）有限公司 | Drive circuit and method of drive light source and controller |
| CN102402953A (en) * | 2011-12-08 | 2012-04-04 | 深圳市华星光电技术有限公司 | Driving circuit and method of light-emitting diode and display device applying same |
| CN102798094A (en) * | 2012-04-25 | 2012-11-28 | 友达光电股份有限公司 | Rubber frame structure of backlight module and backlight module thereof |
| CN103198799A (en) * | 2013-03-20 | 2013-07-10 | 深圳市华星光电技术有限公司 | Backlight driver board and liquid crystal display |
| CN103680417A (en) * | 2012-08-31 | 2014-03-26 | 乐金显示有限公司 | Apparatus and method for driving light source in backlight unit |
| CN104299578A (en) * | 2014-11-10 | 2015-01-21 | 深圳市华星光电技术有限公司 | Backlight unit and driving method thereof as well as liquid crystal display device |
| CN104456193A (en) * | 2014-11-17 | 2015-03-25 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN104482423A (en) * | 2014-11-17 | 2015-04-01 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944328B (en) * | 2009-07-06 | 2012-07-18 | 奕力科技股份有限公司 | Backlight control method and device thereof |
| US8228098B2 (en) * | 2009-08-07 | 2012-07-24 | Freescale Semiconductor, Inc. | Pulse width modulation frequency conversion |
| US9524679B2 (en) * | 2010-09-21 | 2016-12-20 | Apple Inc. | Backlight system for a display |
| TWI558262B (en) * | 2015-01-28 | 2016-11-11 | 友達光電股份有限公司 | Light emitting diode driver |
-
2015
- 2015-08-20 CN CN201510513822.4A patent/CN105096844A/en active Pending
- 2015-10-10 WO PCT/CN2015/091676 patent/WO2017028367A1/en active Application Filing
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1971376A (en) * | 2005-11-25 | 2007-05-30 | 群康科技(深圳)有限公司 | Backlight module and LCD device |
| CN101547540A (en) * | 2008-03-07 | 2009-09-30 | 凹凸电子（武汉）有限公司 | Backlight controller, method for driving light sources, and display system |
| CN101282610A (en) * | 2008-05-09 | 2008-10-08 | 西安交通大学 | Method for adjusting light of plane fluorescent lamp |
| US20100309194A1 (en) * | 2009-06-08 | 2010-12-09 | Samsung Electronics Co., Ltd. | Method of dimming a light source and display apparatus for performing the method |
| CN102014543A (en) * | 2010-07-02 | 2011-04-13 | 凹凸电子（武汉）有限公司 | Drive circuit and method of drive light source and controller |
| CN102402953A (en) * | 2011-12-08 | 2012-04-04 | 深圳市华星光电技术有限公司 | Driving circuit and method of light-emitting diode and display device applying same |
| CN102798094A (en) * | 2012-04-25 | 2012-11-28 | 友达光电股份有限公司 | Rubber frame structure of backlight module and backlight module thereof |
| CN103680417A (en) * | 2012-08-31 | 2014-03-26 | 乐金显示有限公司 | Apparatus and method for driving light source in backlight unit |
| CN103198799A (en) * | 2013-03-20 | 2013-07-10 | 深圳市华星光电技术有限公司 | Backlight driver board and liquid crystal display |
| CN104299578A (en) * | 2014-11-10 | 2015-01-21 | 深圳市华星光电技术有限公司 | Backlight unit and driving method thereof as well as liquid crystal display device |
| CN104456193A (en) * | 2014-11-17 | 2015-03-25 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN104482423A (en) * | 2014-11-17 | 2015-04-01 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017028367A1 (en) | 2017-02-23 |
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