CN105323909B - The method of light-emitting device array module and control light-emitting device array chip - Google Patents
The method of light-emitting device array module and control light-emitting device array chip Download PDFInfo
- Publication number
- CN105323909B CN105323909B CN201510362939.7A CN201510362939A CN105323909B CN 105323909 B CN105323909 B CN 105323909B CN 201510362939 A CN201510362939 A CN 201510362939A CN 105323909 B CN105323909 B CN 105323909B
- Authority
- CN
- China
- Prior art keywords
- light
- emitting device
- device array
- signal
- array chip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
- G03G15/04036—Details of illuminating systems, e.g. lamps, reflectors
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
- G03G15/5075—Remote control machines, e.g. by a host
- G03G15/5087—Remote control machines, e.g. by a host for receiving image data
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/04—Arrangements for exposing and producing an image
- G03G2215/0402—Exposure devices
- G03G2215/0407—Light-emitting array or panel
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
Abstract
A kind of light-emitting device array module includes: the control driver for being configured as receiving print data and operating, and it is configured to the light-emitting device array chip for receiving signal from control driver and operating, wherein light-emitting device array chip is connected to control driver by each data line, and controls driver by adjusting the input time point of commencing signal and data-signal according to the registration error of each light-emitting device array chip to control the operating time point of each light-emitting device array chip.
Description
Cross reference to related applications
This application claims U.S. Provisional Application 62/017,473 submitted in U.S.Patent & Trademark Office on June 26th, 2014
With South Korea patent application 10-2014-0130330 priority submitted in Korean Intellectual Property Office on the 29th of September in 2014, this
In by quote by these application disclosures be fully incorporated.
Technical field
The method for being related to light-emitting device array module and controlling light-emitting device array chip is described below.
Background technique
Using the image forming apparatus of light-emitting device array chip from personal computer (personal computer, PC)
It receives print data and forms image using light-emitting component.When light-emitting component issues light, electrostatic latent image is formed on figure
As on the photoconductor drum in formation device.Then, print image is exported by development, transfer and fixing.
Light-emitting device array chip is connected to control unit by wire bonding (wire bonding).Therefore, it is necessary to
The wire bonding of the number of the signal exported from control unit as much.
Summary of the invention
One or more embodiments include reducing the light-emitting device array module of the number of wire bonding, and control shines
The method of element arrays chip.
One or more embodiments include applying extra to light-emitting component smoothly to operate light-emitting device array
The method for the transferring member for including in module.
In addition aspect a part will be recorded in following description, and a part, which will be clear from the description, to be shown, or
Person can be known by practicing the embodiment provided.
According to one or more embodiments, a kind of light-emitting device array module includes: to be configured as receiving print data simultaneously
The control driver of operation, and it is configured to the light-emitting device array core for receiving signal from control driver and operating
Piece, wherein light-emitting device array chip is connected to control driver by each data line, and controls driver and pass through according to every
The registration error adjustment commencing signal of a light-emitting device array chip and the input time point of data-signal are each luminous to control
The operating time point of element arrays chip.
According to one or more embodiments, it is a kind of control light-emitting device array chip method include: reception print data,
Apply commencing signal to each light-emitting device array chip by data line, and passes through data line after applying commencing signal
Apply data-signal to each light-emitting device array chip, wherein commencing signal is matching according to each light-emitting device array chip
Quasi- error applies in the operating time point of each light-emitting device array chip.
According to one or more embodiments, it is a kind of control light-emitting device array chip method include: reception print data,
Apply the transfer signal of operation transferring member array, applies the data-signal of operation light-emitting device array, and in transfer signal
Just the extra that low level time point application keeps light-emitting component luminous is changed to from high level.
According to one or more embodiments, a kind of light-emitting device array module includes: with light-emitting device array and transfer
The light-emitting device array chip of element arrays, and apply the transfer letter for operating transferring member array by receiving print data
Number and apply operation light-emitting device array data-signal control driver, wherein control driver transfer signal just from
High level changes to the extra that low level time point application keeps light-emitting component luminous.
Detailed description of the invention
By the description below in conjunction with attached drawing to embodiment, these and or other aspects will be apparent and be easier
Understand, in attached drawing:
Fig. 1 is the figure for illustrating using light-emitting device array the process for exporting image；
Fig. 2 is the figure for illustrating light-emitting device array module according to the embodiment；
Fig. 3 is the exemplary figure for illustrating light-emitting device array module according to the embodiment；
Fig. 4 is the exemplary figure for illustrating light-emitting device array module according to the embodiment；
Fig. 5 is the block diagram of light-emitting device array module according to the embodiment；
Fig. 6 is the block diagram of light-emitting device array module according to the embodiment；
Fig. 7 is the exemplary figure for illustrating light-emitting device array chip according to the embodiment；
Fig. 8 is the timing diagram of the signal exported from control driver；
Fig. 9 is the timing diagram of the signal exported from control driver；
Figure 10, Figure 11 and Figure 12 are the figures for illustrating the application timing of commencing signal；
Figure 13 is to illustrate the figure compensated to the registration error of light-emitting device array chip；
Figure 14 is the flow chart of the method for control light-emitting device array chip according to the embodiment；
Figure 15 is to control the timing diagram of the method for the operation of transferring member by applying extra；
Figure 16 is to control the timing diagram of the method for the operation of transferring member by applying extra；And
Figure 17 is the flow chart of the method for control light-emitting device array chip according to the embodiment.
Specific embodiment
Embodiment will be referred in detail now, the example of embodiment illustrates in the accompanying drawings, and similar label refers to always in attached drawing
For similar element.Here, embodiment here can have different forms and should not be construed as being limited to record herein
Description.To which here is only the various aspects that embodiment is described with reference to the drawings to illustrate this description.When used herein
When, word "and/or" includes the associated any and all combination for listing one or more of project.Such as " among
At least one " etc statement entire element list is modified when before element list rather than modify list in a volume elements
Element.
Various embodiments and modification and embodiment are illustrated and are described in detail in the accompanying drawings.It will be understood, however, that real
Apply example include modification in the spirit and scope for belong to inventive concept, equivalent and substitution.
Although the word of such as " first " and " second " etc can be used for describing various elements or component herein, this
A little elements or component should not be limited by these words.These words are for distinguishing an element or component and another element or group
Part.
Word used herein describes embodiment, and is not intended to the range of limitation inventive concept.Make when herein
Used time, singular " one " and "the" are intended to also include plural form, unless the context clearly dictates otherwise.It will be understood that
Other one or more spies are not precluded in the word of such as "include", "comprise" and " having " etc as used herein
The presence or addition of sign, integer, step, operation, element, component or combinations thereof.
Hereinafter, embodiment is described in detail with reference to the attached drawings.In the following description, similar label indicates similar element, and
And omission is to its redundancy description.
Fig. 1 is the figure for illustrating using light-emitting device array the process for exporting image.With reference to Fig. 1, from individual calculus
When machine (PC) 50 receives print data, image forming apparatus executes the operation for exporting image.
Image forming apparatus forms electrostatic latent image using light-emitting component on photoconductor drum 300, and by development, transfer and
Fixing exports image.
Image forming apparatus includes control driver 110, chip array 120, lens array 200 and photoconductor drum 300.
It controls driver 110 and controls chip array 120 according to from the received print data of PC 50.Chip array 120 includes
A plurality of light-emitting elements array chip.These light-emitting device array chips can be separately controlled in control driver 110.Control driver
The method of 110 control light-emitting device array chips illustrates in Fig. 2.
Lens array 200 is disposed in the axis direction (that is, main scanning direction) of photoconductor drum 300.Lens array is passed through
200 light forms image on the surface of photoconductor drum 300.
Photoconductor drum 300 is exposed to light to form electrostatic latent image.Developer (not shown) is to being formed on photoconductor drum 300
Latent electrostatic image developing.
Fig. 2 is the figure for illustrating light-emitting device array module according to the embodiment.With reference to Fig. 2, light-emitting device array module
100 can compensate (or correction) to the registration error of light-emitting device array chip 125.Registration error on main scanning direction can
It is present between light-emitting device array chip 125.When light-emitting device array chip 125 same time point issue light when, shine
Registration error between element arrays chip 125 may not be compensated.To light-emitting device array module according to the embodiment
100 can mend the registration error of light-emitting device array chip 125 by the way that each light-emitting device array chip 125 is separately controlled
It repays.In other words, light-emitting device array module 100 adjusts the time for applying commencing signal to each light-emitting device array chip 125
Point, to control the operating time point of light-emitting device array chip 125.
Control driver 110 receives print data and operates.Driver 110 is controlled from including in image forming apparatus
Central Processing Unit (central processing unit, CPU) or mainboard receive print data, and are beaten according to what is received
Printing is according to the on/off for controlling light-emitting component.Print data is to indicate the data of image to be formed.Control 110 basis of driver
Print data controls the on/off of light-emitting component, controls in the case where considering the registration error of light-emitting device array chip 125
The operating time point of light-emitting device array chip 125.
Control driver 110 further includes the information for storing the operating time point about light-emitting device array chip 125
Memory (not shown).In other words, control driver 110 considers that registration error will be about light-emitting device array chip 125
Operating time point information it is pre-stored in memory.
Control driver 110 controls the member that shines by separately applying commencing signal to each light-emitting device array chip 125
The operating time point of part array chip 125.According to the registration error on the main scanning direction of light-emitting device array chip 125, control
Driver 110 processed mends registration error by adjusting the timing for applying commencing signal to light-emitting device array chip 125
It repays.In other words, control driver 110 is adjusted by adjusting the timing of the commencing signal for being input to light-emitting device array chip 125
Whole phototiming, to correct image on main scanning direction.
Controlling driver 110 is not complete white luminous member to such as print data among light-emitting device array chip 125
Part array chip 125 exports commencing signal.When light-emitting device array chip 125 does not need to issue light, control driver 110 is not
Commencing signal is exported to the light-emitting device array chip 125.Because light-emitting device array can be separately controlled in control driver 110
Chip 125, so control driver 110 is not that the complete white output of light-emitting device array chip 125 starts to such as print data
Signal, to reduce unnecessary power consumption.When print data is complete white, may there is no print data, that is to say, that
It may be without image to be formed.
Light-emitting device array module 100 includes control driver 110 and chip array 120.Chip array 120 includes multiple
Light-emitting device array chip 125.Control driver 110 can be connected with light-emitting device array chip 125 by conducting wire.
Each light-emitting device array chip 125 receives signal from control driver 110 respectively, and operates.Light-emitting component battle array
Column chip 125 is operated according to separating received commencing signal from control driver 110, and (or is connected according to data-signal
Signal) and issue light.Can by word mode and be divided to two rows arrange light-emitting device array chip 125.
Fig. 3 is the exemplary figure for illustrating light-emitting device array module according to the embodiment.
It controls driver 110 and commencing signal sum number is exported to light-emitting device array chip 125 by terminal Φ i1 to Φ i5
It is believed that number.Terminal Φ i1 to Φ i5 in control driver 110 is independently connected to each light-emitting device array chip 125.From
And control driver 110 can be by applying commencing signal to each light-emitting device array chip 125 via terminal Φ i1 to Φ i5
Each light-emitting device array chip 125 is separately controlled.
It controls driver 110 and commencing signal and data-signal is exported by data line.Believe by data line input data
Before number, the data line by wherein having input commencing signal inputs commencing signal.After applying commencing signal, transferring member
Array processing.Data line refers to the terminal Φ i1 to Φ i5 for controlling driver 110 being connected to each light-emitting device array core
The conducting wire of piece 125.Control driver 110 according to the registration error of each light-emitting device array chip 125 adjust commencing signal and
The input time point of data-signal, to control the operating time point of each light-emitting device array chip 125.Control driver
110 apply in delay time to each light-emitting device array chip 125 according to the registration error of each light-emitting device array chip 125
Add commencing signal and data-signal, to compensate to registration error.Delay time is in each light-emitting device array chip
The multiple in the period of the transfer signal applied in 125.
Control driver 110 or image forming apparatus may also include for storing each light-emitting device array chip 125
Registration error and the memory of delay time.
The commencing signal input terminal Φ s1 to Φ s5 of light-emitting device array chip 125 can be parallel-connected to the member that shines respectively
The data signal input terminal Φ i1 to Φ i5 of part array chip 125.For example, the terminal Φ i1 of light-emitting device array chip 125
It can be parallel-connected to each other with Φ s1.It is therefore not required to for connecting control driver 110 and light-emitting device array chip 125
Terminal Φ s1 to Φ s5 each individual conductor.The grid of commencing signal input terminal Φ s1 to Φ s5 expression transferring member
Pole.The cathode of data signal input terminal Φ i1 to Φ i5 expression light-emitting component.
It controls driver 110 and passes through terminal Φ 1 and Φ 2 output transfer signal.Identical transfer signal Phi 1 and Φ 2 are sent out
Optical component array chip 125 receives.Vga refers to ground.
Fig. 4 is the exemplary figure for illustrating light-emitting device array module according to the embodiment.With reference to Fig. 4, commencing signal is defeated
Enter terminal Φ s1 to Φ s5 and data signal input terminal Φ corresponding with commencing signal input terminal Φ s1 to Φ s5 difference
I1 to Φ i5 is connected internally to each other in light-emitting device array chip 125.Therefore, it is possible to reduce light-emitting device array chip 125
The number of external wire bonding.
Fig. 5 is the block diagram of light-emitting device array module according to the embodiment.With reference to Fig. 5, the terminal of light-emitting device array 127
The terminal Φ s of Φ i and transferring member array 126 can be parallel-connected to each other.
Control transferring member array 126 and light-emitting device array 127 of the driver 110 to light-emitting device array chip 125
Apply signal.It controls driver 110 and commencing signal is applied to control transferring member battle array by the terminal Φ i of control driver 110
The operating time point of column 126.
Transferring member array 126 includes multiple transferring members based on commencing signal and transfer signal operation.Transferring member
Array 126 starts to operate when applying commencing signal by terminal Φ s.The multiple transferring members for including in element arrays 126 are suitable
Operate to sequence.
Light-emitting device array 127 includes a plurality of light-emitting elements based on data-signal operation.
The lighting conditions of light-emitting component can be determined according to the state of transferring member.Transferring member and light-emitting component can be
It is one-to-one matched.In order to allow light-emitting component to issue light, transferring member corresponding with the light-emitting component must be in dormant state
In.When transferring member is in dormant state, the on/off of light-emitting component can be according to the data-signal for being input to light-emitting component come really
It is fixed.When commencing signal is input into transferring member, transferring member enters dormant state according to transfer signal sequence.
Control driver 110 is come by using the data-signal for being applied to light-emitting device array 127 to transferring member array
126 output commencing signals.Driver 110 is controlled to export by the terminal Φ i of control driver 110 to transferring member array 126
Commencing signal.After exporting commencing signal, control driver 110 passes through light-emitting component from the terminal Φ i of control driver 110
The terminal Φ i of array 127 is to 127 outputting data signals of light-emitting device array.
The data-signal of commencing signal input terminal (terminal Φ s) and light-emitting device array 127 of transferring member array 126
Input terminal (terminal Φ i) may be connected to the output terminal (terminal Φ i) of control driver 110.To from control driver
The signal (Φ i signal) of 110 outputs can be simultaneously input to transferring member array 126 and light-emitting device array 127.To turn
The commencing signal input terminal Φ s of printing elements array 126 is not connected with control driver 110 by individual conducting wire.
Transferring member array 126 includes multiple transferring members, and light-emitting device array 127 includes a plurality of light-emitting elements.
Transferring member can be by commencing signal and transfer signal (that is, Φ 1 and Φ 2) control.Transferring member is in commencing signal and transfer signal
Φ 1 starts to operate when being applied simultaneously.In other words, transferring member starts to operate in a case where: transferring signal Phi 1 applying
While, commencing signal is applied by the terminal Φ s of transferring member array 126.Light-emitting device array 127 can be according to data-signal
It is switched on the state of transferring member.
Transfer signal can have there are two alternate potential.When first voltage is high level voltage, second voltage is low electricity
Ordinary telegram pressure.
Commencing signal can have the voltage level opposite with signal Phi 1 is transferred.For example, if transfer signal Phi 1 is with low
Level voltage, then commencing signal can have high level voltage.On the other hand, if transfer signal Phi 1 has high level voltage,
Commencing signal can have low level voltage.Control driver 110 can be applied by the period according to transfer signal Phi 1 and Φ 2 to be opened
Beginning signal controls the operation of transferring member.
Fig. 6 is the block diagram of light-emitting device array module according to the embodiment.With reference to Fig. 6, the terminal of light-emitting device array 127
The terminal Φ s of Φ i and transferring member array 126 can be connected internally to each other in light-emitting device array chip 125.
Fig. 7 is the exemplary figure for illustrating light-emitting device array chip according to the embodiment.With reference to Fig. 7, by identical
Terminal Φ i inputs commencing signal and data-signal.Light-emitting device array chip 125 includes the diode Ds and resistance of positive connection
Device Rs.Commencing signal and data-signal are input into the terminal Φ i of light-emitting device array chip 125.The voltage of commencing signal
Level is identical as the maximum level of the voltage of data-signal.To which transferring member or light-emitting component are input into commencing signal
It is not operated before light-emitting device array chip 125.
Disclose the operation of transferring member and light-emitting component.
Light-emitting device array 127 includes multiple luminous thyristors (thyristor), and transferring member array 126 includes
Multiple transfer thyristors.In other words, light-emitting component can be luminous thyristor, and transferring member can be transfer thyristor.
Light-emitting component is represented as L1 to L256, and transferring member is represented as T1 to T256.
Thyristor has PNPN junction structure and including grid.In Fig. 7, in a light-emitting device array chip 125
Including 256 thyristors, and G1 to G256 respectively indicates the gate terminal of these thyristors.When the voltage for determining level or more
When being applied to the grid of thyristor, the breakdown voltage of thyristor is lowered, so that the operation voltage of thyristor is lowered.From
And by applying voltage to the grid of thyristor, it can be by lower driving voltage come operation of thyristors.
Commencing signal provides voltage to the grid G 1 of transfer thyristor T1.Commencing signal is provided to grid by diode Ds
Pole G1.Transfer thyristor T1 starts to operate when commencing signal and transfer signal Phi 1 are applied simultaneously.Then, thyristor is transferred
T2 to T256 sequentially enters mode of operation according to transfer signal Phi 1 and Φ 2.
When transfer thyristor T1 is in mode of operation, the thyristor L1 that shines enters luminance.Transfer thyristor T1
Grid G 1 be equal to shine thyristor L1 grid.To which when transfer thyristor T1 enters mode of operation, shine thyristor L1
Also enter mode of operation.When luminous thyristor L1 is in mode of operation, the thyristor L1 that shines is inputted according to by terminal Φ i
Data-signal issue light.
By repeating the process, transfer thyristor T1 to T256 sequentially enters mode of operation, and the thyristor L1 that shines
Enter mode of operation to L256, and sequentially issues light or do not issue light.
Commencing signal and data-signal are inputted by terminal Φ i.Commencing signal passes through resistor Rs and diode Ds
It is applied to the grid G 1 of transfer thyristor T1.Commencing signal is inputted before input data signal.Commencing signal is turning
Print signal Phi 1 is applied to each light-emitting device array chip 125 while being entered, thus according to each light-emitting device array
The registration error of chip 125 determines the input time point of commencing signal.
Fig. 8 is the timing diagram of the signal exported from control driver.With reference to Fig. 8, controlling driver 110 can be not independent
Commencing signal in the case where drive transferring member.
As shown in figure 8, control driver 110 maintains high level voltage by terminal Φ i.Control driver 110 is maintaining
Outputting data signals while high level voltage.Control driver 110 exports the first data when 1 signal of Φ is in low state
Signal.Therefore, light-emitting device array module 100 can drive transferring member in the case where not applying individual commencing signal.
First transfer signal Phi 1 can be applied to odd number transfer thyristor, and the second transfer signal Phi 2 can be applied
Thyristor is transferred to even number.
First transfer signal Phi 1 and second transfer signal Phi 2 have two potentials of high level and low level and alternately into
Enter high state and low state.First transfer signal Phi 1 and second transfer signal Phi 2 during time ta with overlap each other.This is
In order to enable next transfer thyristor to advance into dormant state what the operation of previous transfer thyristor terminated.Time tb be for
The stable operation of light-emitting component and the time of determination, and time tw is the time of light-emitting component practical operation.
Fig. 9 is the timing diagram of the signal exported from control driver.With reference to Fig. 9, controlling driver 110 can be single by applying
Only commencing signal is separately controlled each light-emitting device array chip 125.
As shown in figure 9, control driver 110 applies commencing signal before through terminal Φ i outputting data signals.Fig. 9
In be expressed as the part " started " corresponding to commencing signal.Controlling driver 110 can be by will be high before outputting data signals
Level voltage maintains a certain amount of time to apply commencing signal.However, control driver 110 can be in transfer signal Phi 1
Apply commencing signal when in low state.
The time point for applying commencing signal can be determined according to each light-emitting device array chip 125 by controlling driver 110.Cause
Be light-emitting device array chip 125 have mutually different registration error, so control driver 110 can according to registration error come
Determine the time point for applying commencing signal.In addition, applying commencing signal when transferring signal Phi 1 and being in low level.Therefore, it controls
Driver 110 can apply the commencing signal for delaying a period of transfer signal Phi 1.
For example, controlling driver 110 can if duration of the transfer signal Phi 1 in high level or low level is T
Every 2T applies commencing signal.This will be described in detail in Figure 10 into Figure 12.
Apply commencing signal Φ s when the first transfer signal Phi 1 is in low state, and the first transfer thyristor T1 connects
It is logical.At this point, control driver 110 is by connecting the first luminous thyristor L1 using data-signal Φ i.Then, when the first transfer
For signal Phi 1 into high state and when the second transfer signal Phi 2 enters low state, control driver 110 utilizes data-signal Φ i
Connect the second luminous thyristor L2.By repeating the process, control driver 110 can connect the 1st to the 256th luminous thyristor L1
To L256.
Figure 10 to Figure 12 is the figure for illustrating the application timing of commencing signal.With reference to figures 10 to Figure 12, driver 110 is controlled
The commencing signal and data-signal of delay can be applied according to the registration error of light-emitting device array chip 125.Control driver 110
The commencing signal of delay can be applied according to the period of transfer signal Phi 1.Because controlling driver 110 to need in transfer signal Phi 1
Apply the commencing signal for being in high level when in low level, so control driver 110 enters low state in transfer signal Phi 1
Time point apply commencing signal.
Figure 10 illustrates the example without lingeringly applying commencing signal and data-signal.It is represented as the height electricity " started "
Ordinary mail number is commencing signal, and controls driver 110 and do not apply commencing signal lingeringly.In other words, driver 110 is controlled
Apply commencing signal at the time point for applying transfer signal Phi 1.Control driver 110 is sequentially applied after applying commencing signal
Add data-signal.
Figure 11 illustrates the example for applying the commencing signal and data-signal that delay 2T.Control driver 110 is postponing
The time of 2T applies commencing signal and data-signal is compensated with the registration error to light-emitting device array chip 125.Cause
Commencing signal is applied by terminal Φ i for control driver 110, so control driver 110 can be to each light-emitting component battle array
Column chip 125 separately applies commencing signal.For example, being controlled if there is the registration error of 2T in light-emitting device array chip 125
Driver 110 processed can apply commencing signal in the time for delaying 2T.
Figure 12 illustrates the example for applying the commencing signal and data-signal that delay 4T.Control driver 110 is postponing
The time of 4T applies commencing signal and data-signal is compensated with the registration error to light-emitting device array chip 125.
The example that it is 0 to 4T delay time that although Figure 10 to Figure 12, which is illustrated, delay time can be according to light-emitting component battle array
The registration error of column chip 125 and change.In addition, if not corresponding to the multiple of 2T to the compensation time of registration error, then control
Multiple with the compensation time immediate 2T to registration error can be determined as delay time by driver 110 processed, and can
Apply commencing signal according to these delay times.
Figure 13 is to illustrate the figure compensated to the registration error of light-emitting device array chip.Light-emitting device array chip
125 position may be suitably arranged during processing.Therefore, it is necessary to the offsets to light-emitting device array chip 125
It compensates.
Based on the first light-emitting device array chip 1301,2 points of offsets are generated in the second light-emitting device array chip 1302,
4 points of offsets are generated in third light-emitting device array chip 1303, and generate 6 in the 4th light-emitting device array chip 1304
Point offset.
Control driver 110 adjusts the application time point of data according to the offset.Control driver 110 check first to
The offset of 4th light-emitting device array chip 1301 to 1304, and determine delay time corresponding with these offsets.Work as control
When driver 110 processed applies data-signal to the second light-emitting device array chip 1302, control driver 110 by 2T by being compensated
Time applies data-signal.When control driver 110 applies data-signal to third light-emitting device array chip 1303, control
Driver 110 processed applies data-signal by compensating the time by 4T.When control driver 110 is to the 4th light-emitting device array core
When piece 1304 applies data-signal, control driver 110 applies data-signal by compensating the time by 6T.
Because data line be separately be connected to control driver 110 and first to fourth light-emitting device array chip 1301 to
Between 1304, so control driver 110 can determine to each of light-emitting device array chip 1301 to 1304 and apply number
It is believed that number time point.Therefore, control driver 110 can determine and first to fourth light-emitting device array chip 1301 to 1304
Each corresponding delay time, and adjust according to identified delay time the time point for applying data-signal.
In addition, delay time can be predefined during processing and stored it in memory, can pass through to control driver 110
Apply data-signal with reference to the delay time of light-emitting device array chip 125 stored in memory.
Figure 14 is the flow chart of the method for control light-emitting device array chip according to the embodiment.
In operation 1410, control driver 110 receives print data.Print data can be received from CPU or PC 50.It beats
Printing evidence is the data about the image to be printed by image forming apparatus.
In operation 1420, control driver 110 starts letter to the application of each light-emitting device array chip by data line
Number.Control driver 110 passes through the direction of signal using the light-emitting device array 127 for being applied to light-emitting device array chip 125
Transferring member array 126 applies commencing signal.
Control driver 110 controls the member that shines by separately applying commencing signal to each light-emitting device array chip 125
The operating time point of part array chip 125.Chip array 120 includes a plurality of light-emitting elements array chip 125.Control driver
110 can put in different times to each light-emitting device array chip 125 application commencing signal.
According to the registration error on the main scanning direction of light-emitting device array chip 125, control driver 110 by adjusting
Apply the timing of commencing signal to each light-emitting device array chip 125 to compensate to registration error.Registration error exists
Between each light-emitting device array chip 125, and control the operation that driver 110 controls each light-emitting device array chip 125
Time point is to compensate registration error.In other words, driver 110 is controlled by adjusting each light-emitting component battle array is input to
The timing of the commencing signal of column chip 125 adjusts phototiming, to correct image on main scanning direction.
It controls driver 110 and the data-signal for indicating image is transmitted to light-emitting device array 127.Data-signal instruction hair
The on/off of optical element.
In operation 1430, controls driver 110 and pass through data line after applying commencing signal to each light-emitting component
Array chip 125 applies data-signal.Control driver 110 apply commencing signal and transferring member start operation it is rear to
Each light-emitting device array 127 applies data-signal.
Figure 15 is to control the timing diagram of the method for the operation of transferring member by applying extra.With reference to Figure 15, control
Driver 110 processed can apply extra, and light-emitting component is made to shine a certain amount of time (ton).
Extra --- signal for keeping each light-emitting component luminous --- is to be applied during time ton by data line
's.Time ton can be the very short time of about several nanoseconds.In addition, low electricity just can changed to from high level in transfer signal
Flat time point applies extra.Transfer signal just from high level change to low level time point can refer to transfer signal quilt
The time point of low level voltage is reduced to from high level voltage.Extra can just changed to from high level in transfer signal Phi 1
Low level time point is applied, or is just being applied from the time point that low level changes to high level in transfer signal Phi 2.This
Outside, extra just can change to low level all time points from high level in transfer signal Phi 1 and Φ 2 and be applied.Figure 15
It is consistent with each other for illustrating the time point at time point and application extra that transfer signal Phi 1 is reduced from high level, but this
A little time points are not consistent with each other always.
Control driver 110 determines the application time of extra to avoid sub-image is formed on photoconductor drum, and in institute
Apply extra during determining time ton.Even if light-emitting component is connected by extra, also formed not on photoconductor drum latent
Picture.In other words, control driver 110 determines the time that will not form sub-image on photoconductor drum light-emitting component issues light,
And apply extra during identified time ton.
With reference to Fig. 7, because the grid of light-emitting component L1 to L256 is connected to each grid of transferring member T1 to T256, institute
It will affect transferring member T1 to T256 with the operation of light-emitting component L1 to L256.Therefore, it is being applied to transferring member T1 to T256
Transfer signal Phi 1 and Φ 2 just change to low level time point from high level and apply to light-emitting component L1 to L256 additional letter
It number will affect the operation of transferring member T1 to T256.When light-emitting component issues light, the grid potential of light-emitting component becomes 3.3V
(Vcc).The grid potential for being connected to the transferring member of light-emitting component also becomes 3.3V.The grid potential of transferring member is sequentially passed
It is delivered to next transferring member, and the grid potential of next transferring member becomes about 1.8V.Light-emitting component is passed in grid potential
The operation of transferring member is helped when being delivered to next transferring member.
Another method for helping the operation of transferring member is so that the grid voltage of each transferring member is than the first transfer
The height of element.In other words, voltage more higher than the high level voltage of transfer signal is applied to the anode of transferring member, becomes
VG2, VG3, VG4 ... and VG256 > VG1.
With reference to Figure 15, when only applying data-signal, whether indication light element is connect according to transfer signal Phi 1 and Φ 2
The unique data signal of logical/shutdown can be applied to light-emitting component.Low level voltage is applied to data-signal, in time t1 or
Light-emitting component is connected during t2.The fluorescent lifetime of light-emitting component changes according to the length of time t1 or t2, and in light guide
The size of the sub-image formed on drum becomes larger as the fluorescent lifetime of light-emitting component is elongated.
When applying data-signal and extra, extra is applied to according to the variation of transfer signal Phi 1 and Φ 2
Light-emitting component.Extra can be applied before or after applying data-signal.
Figure 16 is to control the timing diagram of the method for the operation of transferring member by applying extra.Figure 16 illustrates control
Driver 110 processed applies the example of extra when data-signal is turned off.
Because data-signal is turned off in Figure 16, data-signal maintains high level voltage.
Control driver 110 can also apply extra when data-signal is turned off.In other words, driver 110 is controlled
Not only just it can apply extra from the time point that high level voltage changes to low level voltage in transfer signal Phi 1 and Φ 2,
And apply extra during transfer signal Phi 1 and Φ 2 maintain the low level time.
It is primary further to apply extra during transfer signal Phi 1 and Φ 2 maintain the low level time in Figure 16,
But extra can also be applied at least twice.In addition, extra has rectangular pulse shape, but extra in Figure 16
It can apply by various shape, such as triangular pulse etc..
Figure 17 is the flow chart of the method for control light-emitting device array chip according to the embodiment.
In operation 1710, control driver 110 receives print data.
In operation 1720, control driver 110 applies the transfer signal of operation transferring member array 126.Transfer signal
It indicates the first transfer signal Phi 1 of operation odd number transferring member and operates the second transfer signal Phi 2 of even number transferring member.
In operation 1730, control driver 110 applies the data-signal of operation light-emitting device array 127, and is turning
Official seal number just changes to the extra that low level time point application keeps light-emitting component luminous from high level.In addition, control is driven
Dynamic device 110 also applies extra during the time for applying data-signal when data-signal is turned off.
As described above, according to one or more of above-described embodiment, because the commencing signal of transferring member array inputs
Terminal is parallel-connected to the data signal input terminal of light-emitting device array, it is possible to reduce in light-emitting device array module
The number of wire bonding.
According to the method for control light-emitting device array chip, can be exported by adjusting to each light-emitting device array chip
Each light-emitting device array chip is separately controlled in the time point of commencing signal.
According to control light-emitting device array chip method, can by be separately controlled each light-emitting device array chip come pair
The registration error of light-emitting device array chip compensates.
According to control light-emitting device array chip method, can by light-emitting component apply extra sum number it is believed that
Number influence the operation of transferring member.
Device according to an embodiment may include processor, the memory for storing and executing program data, such as disk
The permanent storage of driver etc for the communication port with external device communication and such as touch panel, key and is pressed
User interface (user interface, UI) equipment of button etc.Can be used as by the method that software module or algorithm are realized can be
The computer-readable code or program command executed on processor is stored on non-transient computer readable medium recording program performing.It calculates
The example of machine readable medium recording program performing includes magnetic storage medium (for example, read-only memory (read-only memory, ROM), random
Access memory (random-access memory, RAM), floppy disk and hard disk) and optical recording medium (for example, compact disk-is read-only
Memory (compact disc-read only memory, CD-ROM) and digital versatile disc (digital versatile
Disc, DVD)).Computer readable recording medium can be also distributed in the computer system by network coupling, so that computer
Readable code can be stored and executed in a distributed fashion.Computer readable recording medium can be readable by a computer, and can quilt
Storage is performed in memory and in the processor.
Can by functional block components and it is various process operations to description embodiment.Functional block can be by hardware and/or software group
Part is realized.For example, various integrated circuits (integrated circuit, IC) component, such as memory can be used in an embodiment
Element, processing element, logic element and look-up table, can be under the control of one or more microprocessors or other control equipment
It performs various functions.Element can realize by software programming or software element, and by such as C, C++, Java or assembler language
Etc programming or scripting language realize, wherein the group of various algorithms by data structure, process, routine or other programming elements
It closes to realize.It can be realized by the algorithm executed in one or more processors in terms of function." mechanism ", " element ", " list
Member " and " configuration " are not limited to mechanical and physical configuration, but may include software routines combination processing device etc..
Specific implementation described herein is exemplary, the range without limiting inventive concept.It is illustrated in attached drawing
Connecting line and connecting elements indicate function connects between various elements and/or physically or logically connect, and can be used
Various replacements or additional function connects, physical connection or logical connection.
To " one " and "the" and similar (especially in the context of appended claims) in the context of specification
The use of denotion can be interpreted that both having covered singular also covers plural form.In addition, herein to the range of value
The each individual value for separately referring to and falling in the range is recorded, unless otherwise indicated herein, and each individual value is incorporated in this
It just look like separately to describe herein equally in specification.The operation of method described herein can be any suitable order
It executes, unless otherwise indicated herein or is apparently contradicted in the context.The range of inventive concept is not limited to above-described behaviour
Work sequence.Example provided herein or word (for example, " such as ") are for being described in detail embodiment, and range is not shown by these
The limitation of example or word, except non-claimed is separately on the books.In addition, one ordinarily skilled in the art will readily appreciate that not taking off
In the case where spirit and scope from inventive concept as defined in the appended claims, it can be made respectively according to design situation and factor
Kind modifications and combinations.
It should be appreciated that embodiment described herein should only take in descriptive sense, rather than in order to limit
's.The description of features or aspect in each embodiment should be usually considered to be useful for other similar in other embodiments
Features or aspect.
Although one or more embodiments have been described with reference to the drawings, it will be recognized by those of ordinary skill in the art that
In the case where not departing from spirit and scope as defined in the appended claims, can carry out to it in form and details various changes
Become.
Claims (12)
1. a kind of light-emitting device array module, comprising:
Driver is controlled, is configured as receiving print data；And
A plurality of light-emitting elements array chip, each of the multiple light-emitting device array chip include transferring member array and
Light-emitting device array, and each of the multiple light-emitting device array chip is configured as connecing from the control driver
It brings drill to an end and makees the data-signal for transferring signal and operating light-emitting device array of transferring member array,
Wherein, each of the multiple light-emitting device array chip is connected to the control by respective data line and drives
Device, and
The control driver according to the adjustment of the registration error of each of the multiple light-emitting device array chip by opening
When operation of the input time of the beginning signal and data-signal point to control each of the multiple light-emitting device array chip
Between point, and just change to low level time point from high level in the transfer signal and apply make light-emitting component shine additional
Signal, the duration of the extra are confirmed as avoiding forming sub-image on photoconductor drum.
2. light-emitting device array module as described in claim 1, wherein the control driver passes through according to the multiple hair
The registration error of each of optical component array chip is every into the multiple light-emitting device array chip in delay time
One applies the commencing signal and data-signal to compensate to the registration error.
3. light-emitting device array module as claimed in claim 2, wherein the delay time is in the multiple light-emitting component
The multiple in the period of each of the transfer signal applied in array chip.
4. light-emitting device array module as described in claim 1, wherein the control driver is applied by the data line
Operate the commencing signal of transferring member array.
5. light-emitting device array module as described in claim 1, wherein the commencing signal input terminal of the transferring member array
Son is parallel-connected to the data line.
6. light-emitting device array module as described in claim 1 further includes for storing about the multiple light-emitting component battle array
The memory of the information of the operating time point of column chip.
7. a kind of method for controlling a plurality of light-emitting elements array chip, this method comprises:
Receive print data；
Apply commencing signal to each of the multiple light-emitting device array chip by data line；
Apply the transfer signal for operating the transferring member array in the multiple light-emitting device array chip；
Just changing to low level time point application from high level in the transfer signal makes the multiple light-emitting device array core
The extra that light-emitting component in piece shines, the duration of the extra are confirmed as avoiding being formed on photoconductor drum
Sub-image；And
Pass through the data line after applying the commencing signal to each of the multiple light-emitting device array chip
Apply data-signal,
Wherein, the application of the commencing signal includes being missed according to the registration of each of the multiple light-emitting device array chip
Difference applies the commencing signal in the operating time point of each of the multiple light-emitting device array chip.
8. the method for claim 7, wherein the application of the commencing signal includes by according to the multiple luminous member
The registration error of each of part array chip is in delay time to each of the multiple light-emitting device array chip
Apply the commencing signal to compensate to the registration error.
9. method according to claim 8, wherein the delay time is applied in the multiple light-emitting device array chip
The multiple in the period of each of the transfer signal added.
10. the method for claim 7, wherein the height electricity of the voltage level of the commencing signal and the data-signal
Ordinary telegram pressure is identical.
11. a kind of method for a plurality of light-emitting elements array chip for including in control image forming apparatus, this method comprises:
Receive print data；
Apply the transfer signal of operation transferring member array；
Apply the data-signal of operation light-emitting device array；And
The extra that low level time point application keeps light-emitting component luminous just is being changed to from high level in the transfer signal,
The duration of the extra is confirmed as avoiding forming sub-image on photoconductor drum.
12. the light-emitting device array module for including in a kind of image forming apparatus, comprising:
Light-emitting device array chip is configured with light-emitting device array and transferring member array；And
Driver is controlled, is configured as applying the transfer signal of operation transferring member array by receiving print data, and apply
The data-signal of add operation light-emitting device array,
Wherein, the control driver just changes to low level time point application from high level in the transfer signal and makes to shine
The luminous extra of element, the duration of the extra are confirmed as avoiding forming sub-image on photoconductor drum.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201462017473P | 2014-06-26 | 2014-06-26 | |
| US62/017,473 | 2014-06-26 | ||
| KR1020140130330A KR20160001567A (en) | 2014-06-26 | 2014-09-29 | Light-emitting element array module and method for controlling Light-emitting element array chips |
| KR10-2014-0130330 | 2014-09-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105323909A CN105323909A (en) | 2016-02-10 |
| CN105323909B true CN105323909B (en) | 2019-03-29 |
Family
ID=55165420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510362939.7A Active CN105323909B (en) | 2014-06-26 | 2015-06-26 | The method of light-emitting device array module and control light-emitting device array chip |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20160001567A (en) |
| CN (1) | CN105323909B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320082A (en) * | 1999-08-30 | 2001-10-31 | 日本板硝子株式会社 | Self-scanning light-emitting device |
| US6710794B1 (en) * | 1999-08-31 | 2004-03-23 | Canon Kabushiki Kaisha | Light print head |
| CN102019766A (en) * | 2009-09-18 | 2011-04-20 | 富士施乐株式会社 | Light-emitting device, print head and image forming apparatus |
| CN104956267A (en) * | 2014-01-29 | 2015-09-30 | 三星电子株式会社 | Light-emitting element array module and method of controlling light-emitting element array chips |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001260410A (en) * | 2000-03-16 | 2001-09-25 | Nippon Sheet Glass Co Ltd | Optical write head and method off correcting light spot train shift |
| JP2003127462A (en) * | 2001-10-29 | 2003-05-08 | Nippon Sheet Glass Co Ltd | Method for correcting quantity of light of optical write head |
| JP5200360B2 (en) * | 2006-09-29 | 2013-06-05 | 富士ゼロックス株式会社 | Exposure apparatus and image forming apparatus |
-
2014
- 2014-09-29 KR KR1020140130330A patent/KR20160001567A/en not_active Application Discontinuation
-
2015
- 2015-06-26 CN CN201510362939.7A patent/CN105323909B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320082A (en) * | 1999-08-30 | 2001-10-31 | 日本板硝子株式会社 | Self-scanning light-emitting device |
| US6710794B1 (en) * | 1999-08-31 | 2004-03-23 | Canon Kabushiki Kaisha | Light print head |
| CN102019766A (en) * | 2009-09-18 | 2011-04-20 | 富士施乐株式会社 | Light-emitting device, print head and image forming apparatus |
| CN104956267A (en) * | 2014-01-29 | 2015-09-30 | 三星电子株式会社 | Light-emitting element array module and method of controlling light-emitting element array chips |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20160001567A (en) | 2016-01-06 |
| CN105323909A (en) | 2016-02-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9417552B2 (en) | Light-emitting element array module and method of controlling light-emitting element array chips | |
| KR102395869B1 (en) | Stage Circuit and Scan Driver Using The Same | |
| US10096281B2 (en) | Display device, driving method thereof, and timing controller thereof | |
| US7773104B2 (en) | Apparatus for driving a display and gamma voltage generation circuit thereof | |
| CN107665675B (en) | Display device, gate driver and method of driving gate driver | |
| KR20170102691A (en) | Image Display Apparatus and Driving Method Thereof | |
| US20160180491A1 (en) | Display system having two systems which operate one at a time | |
| KR102473299B1 (en) | Display device and method of driving the same | |
| US10747360B2 (en) | Display device and driver thereof | |
| US9898948B2 (en) | Data driver and display device having the same | |
| US10019922B2 (en) | Display device that adjusts the level of a reference gamma voltage used for generating a gamma voltage | |
| US8411011B2 (en) | Method and apparatus to generate control signals for display-panel driver | |
| US20080062111A1 (en) | Apparatus for Driving a Display | |
| CN105323909B (en) | The method of light-emitting device array module and control light-emitting device array chip | |
| US10580347B2 (en) | Timing controller, display device including timing controller, and method of driving timing controller | |
| US9365050B2 (en) | Light-emitting element array module and method of controlling light-emitting element array chips | |
| US11107389B2 (en) | Data driving apparatus for display and driver thereof | |
| US11386834B2 (en) | Light-emitting diode (LED) display driver with programmable scan line sequence | |
| US11373579B2 (en) | Display device | |
| CN111107294B (en) | Semiconductor device with a semiconductor device having a plurality of semiconductor chips | |
| KR102568650B1 (en) | Communication device, display device test system and test method using thereof | |
| US11900857B2 (en) | Data transmission/reception circuit and display device including the same | |
| CN105632431B (en) | Controller and display device with improved performance and associated methods | |
| KR20230103559A (en) | Timing Controller, Data Driver and Display Device including the same | |
| CN115836343A (en) | LED pixel package with controllable light emitting time |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170328 Address after: Gyeonggi Do, South Korea Applicant after: Ace Print Solutions Ltd Address before: Gyeonggi Do, South Korea Applicant before: Samsung Electronics Co., Ltd. |
|
| TA01 | Transfer of patent application right | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Gyeonggi Do, South Korea Applicant after: HP printer Korea Co., Ltd. Address before: Gyeonggi Do, South Korea Applicant before: Ace Print Solutions Ltd |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191115 Address after: American Texas Patentee after: Hewlett-Packard Development Corporation, Limited Liability Partnership Address before: Han Guojingjidao Patentee before: HP printer Korea Co., Ltd. |
|
| TR01 | Transfer of patent right |