[go: up one dir, main page]

CN2768052Y - LCD display clock - Google Patents

LCD display clock Download PDF

Info

Publication number
CN2768052Y
CN2768052Y CN200420014188.7U CN200420014188U CN2768052Y CN 2768052 Y CN2768052 Y CN 2768052Y CN 200420014188 U CN200420014188 U CN 200420014188U CN 2768052 Y CN2768052 Y CN 2768052Y
Authority
CN
China
Prior art keywords
real
liquid crystal
time
crystal display
light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN200420014188.7U
Other languages
Chinese (zh)
Inventor
何伟强
王楚翘
吴伟辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thomson Hongkong Co ltd
Original Assignee
Thomson Hongkong Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thomson Hongkong Co ltd filed Critical Thomson Hongkong Co ltd
Priority to CN200420014188.7U priority Critical patent/CN2768052Y/en
Priority to PCT/EP2005/055543 priority patent/WO2006048393A2/en
Application granted granted Critical
Publication of CN2768052Y publication Critical patent/CN2768052Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0082—Visual time or date indication means by building-up characters using a combination of indicating elements and by selecting desired characters out of a number of characters or by selecting indicating elements the positions of which represents the time, i.e. combinations of G04G9/02 and G04G9/08
    • G04G9/0094—Visual time or date indication means by building-up characters using a combination of indicating elements and by selecting desired characters out of a number of characters or by selecting indicating elements the positions of which represents the time, i.e. combinations of G04G9/02 and G04G9/08 using light valves, e.g. liquid crystals
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133621—Illuminating devices providing coloured light
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0005—Transmission of control signals
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0073—Light emitting diode [LED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
    • 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
    • G09G3/3413—Details of control of colour illumination sources
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Nonlinear Science (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Electric Clocks (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal (AREA)

Abstract

A LCD clock comprises a real-time clock circuit, a LCD screen, a background lighting device, a backlight control circuit, a power supply device, a main control unit electrically connected with the backlight control circuit and the power supply device, wherein the real-time clock circuit outputs real-time information to the main control unit, the liquid crystal display comprises at least one area for displaying the real-time information, the background lighting device comprises a plurality of light-emitting devices, wherein at least two light emitting devices have different colors, the backlight control circuit comprises a plurality of controllable regulators, each regulator is electrically connected with a corresponding light emitting device, for continuously controlling the luminous intensity of the light emitting device, the main control unit generates control signals according to the real-time information to respectively control a plurality of regulators of the backlight control circuit, so that the luminous color and light intensity of the background lighting device can be continuously changed according to the real-time change.

Description

The liquid crystal display clock
Technical field
The utility model relates to a kind of liquid crystal display clock, and particularly a kind of have a liquid crystal display clock of the background lighting installation of changes colour automatically.
Background technology
The liquid crystal display clock of knowing at present has a large amount in variety.The liquid crystal display clock can be arranged in various device or the device, for example: wireless liquid crystal display clock, the LCDs of Active Desktop Calendar platform is in the various audio/video devices and other similar devices with liquid crystal indicator.In order to adapt to and satisfy the consumption demand of different levels, continually develop out various trendy liquid crystal display clocks on the market.
The United States Patent (USP) of authorizing Donald R.Brewer etc. shows a kind of polychrome device of liquid crystals with dynamic change characterization that is used for electronic watch or other forms of decorative article for the 5th, 995, No. 456.The liquid crystal display surface of this wrist-watch is made up of the part of a plurality of different colours.This liquid crystal display surface is provided with the clock apparatus of an instruction time.Also be provided with a control device in this wrist-watch, be used for dynamically controlling the change color on this liquid crystal display surface, making wherein, the color at least a portion surface does not change in time and changes independently.The LCD of this wrist-watch can constitute the pattern of different colours on its polychrome background, as geometric scheme, and animal pattern, other special patterns, sign of designer or the like also can make different background colors partly produce dynamic change, makes the more beautiful and fashion of its outward appearance.
United States Patent (USP) the 6th, 633,510 and 6,639, No. 875 a kind of pair of elapsed time clock described, its liquid crystal background display comprises two clock face parts that adjoin each other, when voltage put on each clock face, the color of pairing clock face promptly changed; This liquid crystal background display also comprises a power supply that connects this background display; And control circuit that connects this power supply and clock circuit, be used to control and change the voltage that is applied on the liquid crystal background display, make the color of corresponding liquid crystal background display change automatically by these devices, and only when the clock circuit of correspondence becomes (PM) by (AM) time in the morning time in the afternoon, the color of each corresponding liquid crystal background display is changed, that is, make the color of the liquid crystal background display that each is corresponding become another kind of color by a kind of color the period in the morning period in the afternoon.
In sum, although above-mentioned prior art has disclosed different liquid crystal display clocks respectively, the color of its bias light all can change, but the variation of the background color of above-mentioned first kind of clock example does not change in time and changes, and the variation of the background color of above-mentioned second kind of clock example is just according to the variation generation instantaneous variation of time, these examples are not all made any prompting and hint for design of the present utility model, and do not occur and design of the present utility model and the identical or similar product of technical characterictic as yet in the market.
Therefore, the purpose of this utility model is to provide a kind of novelty that has, the new product of creative and practicality adapts to and satisfies consumer's strange consumption demand of always looking for novelty, and following explanation will be described in detail design of the present utility model and technical characterictic.
Summary of the invention
Although the color that liquid crystal display clock of the prior art has disclosed the LCD bias light is according to time or the example that do not change according to the variation of time, but the continually varying embodiment takes place as the color of the bias light of clock and luminance brightness according to the variation of time in all real proposition the gradually, therefore the purpose of this utility model is to provide a kind of new liquid crystal display clock, the LCDs of this clock is provided with a background lighting installation, and the color of the bias light that it provided and luminance brightness can take place gradually to change continuously according to the variation of time.
In order to realize the foregoing invention purpose, the utility model provides a kind of liquid crystal display clock to comprise a real time clock circuit, a LCDs, a background lighting installation, a backlight control circuit, a supply unit, with a main control unit that is electrically connected with backlight control circuit and supply unit, it is characterized in that real time clock circuit exports real-time information to main control unit, LCDs comprises that at least one zone shows real-time information, background lighting installation comprises a plurality of light-emitting devices, wherein the color of at least two light-emitting devices is inequality, backlight control circuit comprises a plurality of controllable regulators, the input end of each regulator is electrically connected with the output terminal of main control unit, the output terminal of each regulator is electrically connected with a corresponding light-emitting device, be used for controlling continuously the light intensity of light-emitting device, main control unit produces control signal according to real-time information and controls a plurality of regulators of backlight control circuit respectively, thereby makes the glow color of background lighting installation and light intensity produce continuous variation according to real-time change.
According to above-mentioned technical scheme, in the time of liquid crystal display clock energized, export real-time information by real time clock circuit to main control unit, main control unit produces corresponding associated control signal according to real-time information, then control signal is delivered to backlight control circuit, backlight control circuit drives the light intensity that each regulator is controlled each light-emitting device respectively according to the control signal of being received.Because the light-emitting device of different colours produces the continuous variation of different light intensity degree respectively according to real-time change, thereby make the color of its background lighting installation and light intensity produce continuous variation, thereby make the utility model obtain a kind of compared with prior art liquid crystal display clock of significantly different novelties according to real-time change.
Description of drawings
Fig. 1 is the planimetric map according to the LCDs of the liquid crystal display clock of the utility model embodiment;
Fig. 2 is the diagrammatic cross-section of the LCDs of the shown liquid crystal display clock of Fig. 1;
Fig. 3 is the circuit block diagram according to the liquid crystal display clock of the utility model embodiment;
Fig. 4 has shown the synoptic diagram of different time segmented model; With
Fig. 5 is the fundamental diagram according to the liquid crystal display clock master control program of the utility model embodiment.
Embodiment
The utility model provides a kind of liquid crystal display clock of novelty, and embodiment as depicted in figs. 1 and 2 is the LCDs (LCD) 10 of a common liquid crystal display clock.At least including a zone on the screen of this LCDs 10 is the real-time time viewing area.The background lighting installation of LCDs 10 comprises that one deck is located at the photoconductive layer 20 of LCDs 10 inboards, around photoconductive layer 20, be provided with a plurality of light-emitting devices 30, as an example, example shown in the figure is two (LED) light-emitting devices 30, but also can select to be provided with more light-emitting device 30.These light-emitting devices 30 normally adopt light emitting diode (LED), wherein have at least the color of two light-emitting devices 30 inequality, and preferably the color of at least two light-emitting devices 30 is complementary colors, for example red and green, perhaps blue and orange etc., also can be that two above light-emitting devices 30 have different colors respectively, for example red, green and blueness etc.With reference to shown in Figure 2, be provided with one deck scattering layer 40 at photoconductive layer 20 towards first face of LCDs 10, in addition, on second of 20 first reverse side of this photoconductive layer, be provided with one deck reflection horizon 50.
According to shown in Figure 3, liquid crystal display clock of the present utility model also comprises a main control unit 60 that is electrically connected on this LCDs 10, a real time clock circuit 70 that is electrically connected on main control unit 60,80, one supervisory keyboards 90 of backlight control circuit and a supply unit (not shown) that is electrically connected with main control unit 60 and light-emitting device 30 respectively.Wherein, main control unit 60 also comprises first memory 62 and second memory 63 of preserving data of 61, one save routines of microprocessor of a working procedure.Backlight control circuit 80 mainly comprises a plurality of regulators 81, the input end of each regulator 81 is electrically connected with main control unit 60, the output terminal of each regulator 81 is electrically connected in order to control each light-emitting device 30 with a corresponding light-emitting device 30, makes the light intensity of each light-emitting device 30 produce continuously variation uniformly respectively.The regulator 81 that is adopted can be the current regulator of using always, controls the light intensity generation variation uniformly continuously that light-emitting device 30 sends by the drive current of regulating light-emitting device 30; It also can be pulse width regulator (PWM), the ratio of the conduction number of times by being adjusted in light-emitting device 30 in certain work period is controlled light intensity that light-emitting device 30 sends and is produced continuously and change uniformly, the function and application of these regulators 81 belongs to the known technology of those skilled in the art in this area, for saving space, be not described in detail at this.
According to embodiment of the present utility model, color different time segmentation display mode difference within a day that the background lighting installation of liquid crystal display clock is shown, and produce continuous variation according to the variation of real-time time.Wherein can be separated into several time slices in one day 24 hours, the separation of these time slices is set to T 1, T 2, T 3T n, different time slice methods is preset to multiple different time slice pattern and is kept in the second memory 63, can select for the user.Refer now to Fig. 4 and illustrate, the day and night time among 1 year during the Autumnal Equinox in the Spring Equinox equates basically, shown in Fig. 4 a; Sunshine-duration during the Summer Solstice is the longest, shown in Fig. 4 b; And the sunshine-duration during Winter Solstice is the shortest, shown in Fig. 4 c.Therefore can set in advance different time slice patterns according to different sunshine-duration length.For example, with the separation T of the time slice among Fig. 4 a 1, T 2, T 3, T 4Be made as time slice pattern one, with the separation T of the time slice among Fig. 4 b 1', T 2', T 3', T 4' be made as time slice pattern two, the separation T of the time slice among Fig. 4 c 1", T 2", T 3", T 4" be made as time slice pattern three.The time slice pattern of giving tacit consent to when time slice pattern one is set as program run usually, the user can select needed time slice pattern by the operation of supervisory keyboard 90, the special time slice pattern that can also define voluntarily by supervisory keyboard 90 inputs according to actual needs.Each time slice is determined corresponding a kind of control signal, and different control signals is determined different color display modes.
Illustrate below in conjunction with embodiment, Fig. 4 a is a time slice pattern that is divided into four sections, in the daytime (the determined corresponding control signal of T1≤Tr≤T2) drives background lighting installation and shows bias light in the daytime the period, this moment, night, backlight mode was closed, in the daytime backlight mode is opened, and for example red LED is opened and transferred to the strongest luminous intensity and green LED is closed; At dusk (the determined corresponding control signal of T2＜Tr＜T3) drives background lighting installation and shows by in the daytime to the bias light of gradual change at night the period, night this moment, backlight mode was opened and enhancing gradually, and in the daytime backlight mode gradually deepening until closing, for example red LED is gradually by bright deepening, and green LED is opened and gradually by secretly brightening; (the determined corresponding control signal of T3≤Tr≤T4) drives background lighting installation and shows the bias light at night night-time hours, and this moment, backlight mode was closed in the daytime, and night, backlight mode was opened, and promptly red LED is closed and the strongest luminous intensity is opened and transferred to green LED; Driving background lighting installation from determined control signal of the period at dawn between the T4 to T1 shows by the bias light of night to gradual change in the daytime, backlight mode was opened and was strengthened gradually in the daytime this moment, and night backlight mode gradually deepening until closing, for example green LED is gradually by bright deepening, and red LED is opened and gradually by secretly brightening.
When liquid crystal display clock of the present utility model when connecing electricity, main control unit 60 is according to the real-time information T of real time clock circuit 70 input rCarry out program run and determine corresponding real-time information T rThe control signal of time slice, then the control signal of determining is delivered to backlight control circuit 80, each regulator 81 of backlight control circuit 80 drives the light intensity of controlling each corresponding light-emitting device 30 respectively by control signal and produces continuously and change uniformly.Because the light-emitting device 30 that the utility model adopts itself has different colours respectively, the light of different colours and intensity sees through photoconductive layer 20 through mixing the back, and demonstrates the mixed-color light of different colours and intensity respectively via the surface that is scattered in LCDs 10 of the reflection in reflection horizon 50 and scattering layer 40.Because each specific period can be determined corresponding a kind of specific control signal, thereby drive background lighting installations according to the corresponding different control signals of different time segmentation and present different colors and luminance brightness respectively, and produce continuously according to real-time variation and to change uniformly at different time slices.
Figure 5 shows that the fundamental diagram of the program run of main control unit of the present utility model.Explain the principle of work of liquid crystal display clock of the present utility model and main control unit 60 in detail below in conjunction with embodiment of the present utility model.
During beginning, real-time information T rBy real time clock circuit 70 output and input to main control unit 60, carry out the operation of program by the microprocessor in the main control unit 60 61, if the first step is result of calculation T 1≤ T r≤ T 2Set up then that output shows the control signal of backlight mode in the daytime, if be false then carry out next step calculating; Second step is if result of calculation satisfies T 2＜T r＜T 3Then the output demonstration to the control signal of gradual change at night backlight mode, does not enter next step if do not satisfy by in the daytime; The 3rd step is if result of calculation satisfies T 3≤ T r≤ T 4Then output shows the control signal of backlight mode at night, and if do not satisfy output show by night to the control signal of gradual change backlight mode in the daytime.When the user need reselect the time slice pattern, at first make program switch to the pattern of setting by supervisory keyboard 90 input " setting " signals, background lighting installation is closed under the mode state being provided with, can reset this moment, the user can select to be kept at the other times segmented model of second memory simply, also can define special time slice pattern voluntarily according to user's special requirement and is kept in the second memory 63.After setting was finished, by supervisory keyboard 90 input " finishing " signals, program run finished then.Liquid crystal display clock after resetting is opened again, and main control unit is activated, and setting and real-time information working procedure output control signal corresponding according to new default time segmented model drive background lighting installation and show corresponding display mode.
In sum, the background lighting installation that can realize making the liquid crystal display clock by above-mentioned technical solution of the present utility model produces continuously and the variation of gradual change according to the variation of time, thereby produce a kind of new and original new product, have good technical application and very high commercial value.

Claims (7)

1.一种液晶显示时钟包括一个实时时钟电路，一个液晶显示屏，一个背景照明装置，一个背光控制电路，一个电源装置，一个与背光控制电路和电源装置电连接的主控制单元，其特征在于：1. A liquid crystal display clock comprises a real-time clock circuit, a liquid crystal display screen, a background lighting device, a backlight control circuit, a power supply unit, a main control unit electrically connected with the backlight control circuit and the power supply unit, and is characterized in that : -实时时钟电路向主控制单元输出实时信息信号；- The real-time clock circuit outputs real-time information signals to the main control unit; -液晶显示屏包括至少一个区域显示实时信息；- the liquid crystal display includes at least one area displaying real-time information; -背景照明装置包括多个发光装置，其中至少两个发光装置的颜色不相同；- the backlighting means comprises a plurality of light emitting means, wherein at least two light emitting means are not of the same color; -背光控制电路包含多个可控制的调节器，每一个调节器的输入端与主控制单元的输出端电连接，每一个调节器的输出端与一个相对应的发光装置电连接，用于连续地控制发光装置的发光强度；- The backlight control circuit includes a plurality of controllable regulators, the input terminal of each regulator is electrically connected with the output terminal of the main control unit, and the output terminal of each regulator is electrically connected with a corresponding light-emitting device for continuous Control the luminous intensity of the light-emitting device; -主控制单元接收实时时钟电路输出的实时信息并产生控制信号，然后将控制信号输送至背光控制电路的多个调节器的输入端，调节器收到主控制单元输入的相应控制信号驱动背景照明装置的发光装置，从而使背景照明装置的整体发光颜色和光强度根据实时变化而产生连续的变化。- The main control unit receives the real-time information output by the real-time clock circuit and generates control signals, and then sends the control signals to the input terminals of multiple regulators of the backlight control circuit, and the regulators receive corresponding control signals from the main control unit to drive the background lighting The light-emitting device of the device, so that the overall light-emitting color and light intensity of the background lighting device produce continuous changes according to real-time changes. 2.根据权利要求1所述的液晶显示时钟，其中主控制单元包括一个用于运行程序的微处理器，一个用于保存程序的第一存储器，和一个保存预设时间分段模式数据的第二存储器，每一个时间分段确定一个对应的控制信号；因此2. The liquid crystal display clock according to claim 1, wherein the main control unit comprises a microprocessor for running the program, a first memory for saving the program, and a first memory for saving the preset time segment mode data Two memories, each time segment determines a corresponding control signal; therefore 当液晶显示时钟接通电源的时候，由实时时钟电路向主控制单元输出实时信息，并由液晶显示屏显示实时信息，主控制单元的微处理器接收到实时信息进行程序运行，从而产生对应于实时的时间分段的相关控制信号，然后将控制信号输送至背光控制电路，背光控制电路根据所收到的控制信号驱动各个调节器分别控制各个发光装置的光强度。When the liquid crystal display clock is powered on, the real-time clock circuit outputs real-time information to the main control unit, and the real-time information is displayed on the liquid crystal display, and the microprocessor of the main control unit receives the real-time information and executes the program to generate the The real-time time-segmented related control signals are then sent to the backlight control circuit, and the backlight control circuit drives each regulator to control the light intensity of each light-emitting device according to the received control signal. 3.根据权利要求2所述的液晶显示时钟，其中第二存储器中还预设有至少两组以上不同的时间分段模式可供用户选择，还设有一个和主控制单元电连接的控制键盘，通过控制键盘可以向主控制单元输入信息，从至少两组以上预设的时间分段模式中选择其中一组作为程序运行所利用的模式，或者也可以由用户自行定义一组特殊的时间分段模式保存在第二存储器中，作为可供用户选择的时间分段模式之一。3. The liquid crystal display clock according to claim 2, wherein at least two or more different time segment modes are preset in the second memory for selection by the user, and a control keyboard electrically connected to the main control unit is also provided , input information to the main control unit through the control keyboard, select one of at least two groups of preset time-segmented modes as the mode used by the program, or a group of special time-segmented modes can also be defined by the user The segment pattern is stored in the second memory as one of the time segment patterns available for user selection. 4.根据权利要求1至3中的任意一项所述的液晶显示时钟，其中液晶显示屏的背面设置有一层光导层，多个发光装置分别设置在光导层的四周。4. The liquid crystal display clock according to any one of claims 1 to 3, wherein a light guide layer is arranged on the back of the liquid crystal display, and a plurality of light emitting devices are respectively arranged around the light guide layer. 5.根据权利要求4所述的液晶显示时钟，其中在光导层面向液晶显示屏的第一面上设置有一层散射层，在光导层第一面反面的第二面上设置有一层反射层。5. The liquid crystal display clock according to claim 4, wherein a scattering layer is arranged on the first surface of the light guiding layer facing the liquid crystal display, and a reflective layer is arranged on the second surface opposite to the first surface of the light guiding layer. 6.根据权利要求1至3中的任意一项所述的液晶显示时钟，其中背光控制电路的调节器为电流调节器或脉宽调节器。6. The liquid crystal display clock according to any one of claims 1 to 3, wherein the regulator of the backlight control circuit is a current regulator or a pulse width regulator. 7.根据权利要求1至3中的任意一项所述的液晶显示时钟，其中至少两个发光装置的颜色为互补色。7. The liquid crystal display clock according to any one of claims 1 to 3, wherein the colors of at least two light emitting devices are complementary colors.
CN200420014188.7U 2004-11-02 2004-11-02 LCD display clock Expired - Fee Related CN2768052Y (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN200420014188.7U CN2768052Y (en) 2004-11-02 2004-11-02 LCD display clock
PCT/EP2005/055543 WO2006048393A2 (en) 2004-11-02 2005-10-25 Time display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200420014188.7U CN2768052Y (en) 2004-11-02 2004-11-02 LCD display clock

Publications (1)

Publication Number Publication Date
CN2768052Y true CN2768052Y (en) 2006-03-29

Family

ID=36130065

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200420014188.7U Expired - Fee Related CN2768052Y (en) 2004-11-02 2004-11-02 LCD display clock

Country Status (2)

Country Link
CN (1) CN2768052Y (en)
WO (1) WO2006048393A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101950154A (en) * 2010-09-08 2011-01-19 周大庆 Multifunctional environment stimulation device
CN101819405B (en) * 2010-01-13 2013-07-03 深圳市强大实业有限公司 Electronic clock or watch with changeable display color

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8740443B2 (en) 2006-07-03 2014-06-03 Core Wireless Licensing S.A.R.L. Changing graphics in an apparatus including user interface illumination
US20080129719A1 (en) * 2006-12-04 2008-06-05 Marten Andreas Jonsson Electronic device and method for controlling the illumination of a display and/or a keypad thereof
JP2010181487A (en) * 2009-02-03 2010-08-19 Sanyo Electric Co Ltd Display device
CN101916549A (en) * 2010-07-22 2010-12-15 中兴通讯股份有限公司 Method and device for controlling screen backlight
CN104156052B (en) * 2014-07-23 2016-09-14 深圳市金立通信设备有限公司 A kind of management method of desktop real-time clock
CN107749288B (en) * 2017-11-21 2020-04-28 深圳市华星光电技术有限公司 Mura compensation method of liquid crystal display device and liquid crystal display device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4579460A (en) * 1984-05-17 1986-04-01 Shannon Thomas D Synchronous world clock
FR2639753A1 (en) * 1988-11-16 1990-06-01 Vuarnesson Bernard Apparatus for reproducing the apparent vision of a heavenly body
US5245590A (en) * 1992-07-10 1993-09-14 Galison William A Display of changing moon on watch face
GB2367385A (en) * 2000-09-25 2002-04-03 Protein Ltd Clock
FR2847044B1 (en) * 2002-11-13 2007-03-02 Gil Boivin ANALOG WATCH AND VARIABLE DIAL

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101819405B (en) * 2010-01-13 2013-07-03 深圳市强大实业有限公司 Electronic clock or watch with changeable display color
CN101950154A (en) * 2010-09-08 2011-01-19 周大庆 Multifunctional environment stimulation device

Also Published As

Publication number Publication date
WO2006048393A3 (en) 2006-09-21
WO2006048393A2 (en) 2006-05-11

Similar Documents

Publication Publication Date Title
CN101578001B (en) Method for adjusting direct LED backlight color and adjusting device thereof
CN2768052Y (en) LCD display clock
CN105575341A (en) Liquid crystal display device and backlight control method thereof
JP2014209239A (en) Reflective and transflective operating modes for display device
CN102592554A (en) Liquid crystal display device having a plurality of pixel electrodes
CN101553065A (en) LED atmosphere illumination control system
CN101369407A (en) Control Method of Field Sequential Color LED Backlight Technology
CN110415652A (en) Display driving method and display driver circuit
CN106415377B (en) Liquid crystal display device
CN101686590A (en) Led dynamic backlight source control algorithm
CN111103723A (en) A liquid crystal display backlight module
CN103970329B (en) A kind of method and a kind of electronic equipment for switching display
CN101363994A (en) Liquid crystal display device and method
CN102448232A (en) LED (light-emitting diode) lighting controller with sensitization function
CN102143634B (en) Fuzzy control technology based scene lighting comprehensive control system
CN201682675U (en) Energy-saving intelligent street lamp control device
CN113934054A (en) Display with regional dimming function, dimming method and backlight module
JP2002303846A (en) Field sequential liquid crystal display
CN2314431Y (en) Color liquid crystal display element
CN102044222B (en) Color filter-free liquid crystal display and display method thereof
CN102419963B (en) Color display screen and display method thereof
CN115985230A (en) Screen-off energy-saving control method for constant-current LED display driving chip
CN101751862A (en) Device for controlling luminance of backlight source and control method thereof
WO2017193494A1 (en) Low-power-consumption liquid crystal display device backlight loop and control method therefor
CN107295729A (en) A kind of street lamp brightness autocontrol method

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee