CN1441396A - Display device - Google Patents
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- CN1441396A CN1441396A CN03106124A CN03106124A CN1441396A CN 1441396 A CN1441396 A CN 1441396A CN 03106124 A CN03106124 A CN 03106124A CN 03106124 A CN03106124 A CN 03106124A CN 1441396 A CN1441396 A CN 1441396A
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- initial setting
- setting data
- deposit
- data
- display device
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- 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
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Computer Hardware Design (AREA)
- Optics & Photonics (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Controls And Circuits For Display Device (AREA)
- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
To provide a display device which enables a controller in a panel module to read out and initialize an adjustment value stored in a nonvolatile memory provided in the panel module and also properly initialize set the adjustment value according to use environment. A controller part 5 in a liquid crystal driving device of module constitution directly reads out a group of necessary initializing data (address and set value) stored in the nonvolatile memory 8 and initializes them in corresponding addresses of a setting register 7 in sequence. For the same setting item, a different set value is stored to enable an optimum initialization corresponding to use environment.
Description
Technical field
The present invention relates to carry out the display device of modular structure of the initial setting of display screen and driver part etc.
Background technology
In liquid crystal display, have distinctive discreteness respectively in its critical voltage etc., and, comprise in the display module IC of liquid crystal display and discrete component etc. in formation and also to have discreteness.In order to eliminate this discreteness, after having assembled module, be necessary to carry out the adjustment such as reference value fine setting of driving voltage, show that kind specific character such as deep or light all meets the specification requirement of product thereby make.Always, such adjustment is to use variable resistor set in module or fine setting fusible link to wait in manufacturing process to carry out.
In addition, in a part of machine, also proposed in manufacturing process, these adjusted values can be stored in the scheme of the module of nonvolatile memory.Usually, in midget plants such as portable phone and PDA, the specification of the size of display screen, the shape of module, connector etc. customizes by requirement of client mostly.Therefore, determined that module just determined the user, also just determined the device that uses and using method etc.That is, determine various settings such as voltage that this device is fit to the most and frequency.
In this case, have: driver output voltage value and frame rate etc., the state of corresponding liquid crystal display and drive IC or other discrete component, the setting value that best adjusted value can change (to call A group's setting value in the following text); With N line paraphase number, memory write Inbound, the setting of booster circuit, the mode initialization of amplifier class etc., the setting value of according to the device that uses each table apparatus being determined at software development phase (to call B group's setting value in the following text).These setting values are kept in the nonvolatile memory that is arranged in the LCD MODULE.
More than the setting of each setting value, normally by the MPU equal controller that is arranged on the LCD MODULE outside, when the starting stages such as system start-up of this device, send setting command etc., the adjusted value reading in the nonvolatile memory to be preserved, and carry out initial setting.
Like this, in existing LCD MODULE, be to carry out initial setting according to the control of the MPU of outside.Therefore, former thereby the controller of LCD MODULE is reset but MPU when not being reset when taking place because of applying of similar electrostatic pulse etc., the problem that each setting value is initialized to other state (for example state that is set in advance by hardware etc.) will take place.
In addition, the adjusted value of being preserved in the nonvolatile memory because normally each setting item is a kind, can not corresponding environment for use carry out the best problem of setting so exist.
In addition, in the display module that uses nonvolatile memory, this nonvolatile memory can not be removed from device, so exist system architecture to lack the problem of flexibility.
Summary of the invention
The objective of the invention is to, a kind of display module (below be also referred to as display device) is provided, it can be read by the controller in the module and be kept at the setting value in the nonvolatile memory that is arranged in this display module and carry out initial setting.In addition, its purpose also is, a kind of display device of can corresponding environment for use carrying out best initial setting is provided.In addition, its purpose is that also providing a kind of can remove this nonvolatile memory from device, thereby makes system architecture have the display device of flexibility.
One of the present invention's display device is characterised in that: comprising: display part; Preserve this display part should displaying contents the demonstration storage part; Be connected with described display part, and according to the described drive division that should content displayed described display part is shown; Deposit the setting of initial set value and deposit portion; Be connected with described each one, and control their control part; Be connected with described control part, order is according to the rules deposited by deposited the positional information of portion address and the initial setting data that initial set value corresponding with it formed by the described setting of expression, deposited and followed afterwards in a group initial setting data (initial setting data group), the non-volatile memories portion of the end data of expression " the initial setting data group finishes ", described control part, according to the initial setting commencing signal, from described non-volatile memories portion decide start address and read the initial setting data in turn, the address of portion is deposited in the described setting that is comprised in mutually should the initial setting data, deposit in described setting and to deposit initial set value in the portion, when detecting described end data, finish the initial setting of initial setting data group.
The present invention's two display device is the described display device of one of the present invention, it is characterized in that: have as being arranged on the outside control device and the exterior I/F portion of the interface between the described control part.
The present invention's three display device, be the present invention's two described display device, it is characterized in that: in described non-volatile memories portion, stored a plurality of initial setting data groups, be clamped between them to major general's end data, and can read required initial setting data group selectively.
The present invention's four display device, be the present invention's three described display device, it is characterized in that: in described non-volatile memories portion, deposit the described setting of expression and deposit the different a plurality of initial setting data groups of initial set value of identical and corresponding its positional information of positional information of portion address.
The present invention's five display device, it is each described display device among one of the present invention～four, it is characterized in that: after earlier described control part being implemented to reset, described control part will be kept at the initial setting data in the described non-volatile memories portion, deposit in described setting again as initial set value and deposit in the portion.
The present invention's six display device, be the present invention's two described display device, it is characterized in that: described control part, write instruction according to the initial setting data, from described non-volatile memories portion decide start address, deposit in turn the address of described set-up register with to initial set value that should the address as a pair of initial setting data, and in the next address after an initial setting data group finishes, deposit described end data.
The present invention's seven display device, be the present invention's six described display device, it is characterized in that: be provided with and the signal wire that is connected to described non-volatile memories portion from described control part can be set at the opening portion of establishing the state of putting by cable, and can be by the outside directly with described initial setting deposit data in described non-volatile memories portion.
The present invention's eight display device, be the present invention's six or seven described display device, it is characterized in that: when the initial setting data are deposited by described non-volatile memories portion, odd and even data is also deposited in the lump, simultaneously, when the initial setting data are read by described non-volatile memories portion, carry out parity checking.
The present invention's nine display device is the present invention's two described display device, it is characterized in that: described non-volatile memories portion is made in the other IC chip different with constituting described control part IC chip.
The present invention's ten display device is the present invention's nine described display device, it is characterized in that: when described non-volatile memories portion was not connected with described driving governor, described end data or invalid data can take place in described driving governor.
Description of drawings
Fig. 1 is the structural drawing of expression liquid crystal indicator of the present invention.
Fig. 2 is the example of the initial setting data of expression nonvolatile memory.Among the figure: 1-exterior I/F circuit; Circuit takes place in 2-driving voltages etc.; 3-liquid crystal display drive circuit; 4-display-memory; 5-driver controller; 6-address control device; 7-set-up register; 8-nonvolatile memory; 9-display screen.
Embodiment
Below, in conjunction with Fig. 1, Fig. 2, the liquid crystal indicator that constitutes with module is an example, and embodiment of the present invention are illustrated.
Fig. 1 represents the structure of liquid crystal indicator of the present invention.This liquid crystal indicator is made of module, and its major part comprises: generation circuit 2 such as exterior I/F circuit 1, driving voltage, constitute liquid crystal display drive circuit 3, display-memory 4, driving governor 5, address control device 6, set-up register 7, nonvolatile memory 8 and the display screen 9 of drive division simultaneously with this generation circuit 2.In addition, also has necessary inscape such as abridged timing generator circuit among the figure.
Exterior I/F circuit 1 carries out and being connected of the MPU equal controller that is provided with in this module-external.Liquid crystal display drive circuit 3 is accepted the driving voltage from generation circuit 2 such as driving voltages, and display-memory 4 video datas that for example constitute by RAM etc., drive display screen 9 as display part.
Set-up register 7 is registers of depositing the various setting values of this liquid crystal indicator, deposits the output voltage values of driver and all setting values in the display mode etc.Nonvolatile memory 8 is storeies of preserving stored various initial set value in the set-up register 7, can use non-volatile storeies such as EEPROM, FLASH, FRAM.
Driving governor 5 is controllers that each the formation portion to this liquid crystal indicator controls, and carries out the wherein address control device 6 of part of functions in addition.This address control device 6 comprises address pointer and control part thereof etc., has the nonvolatile memory of making 8 and preserves the initial setting data or pass on and deposit effect such as regulation initial setting data to set-up register 7 from this nonvolatile memory 8.
In this liquid crystal indicator, at first, in nonvolatile memory 8, preserve the initial setting data.In this nonvolatile memory 8, in manufacturing process,, write A group's initial setting data (for example, driver output voltage value and frame rate etc.) according to the value of being adjusted in the manufacturing process.And then, also in manufacturing process, according to determine at each table apparatus of the corresponding operative installations of software development phase value, write B group's initial setting data (for example, the setting of N line paraphase number, memory write Inbound, booster circuit, the mode initialization of amplifier class etc.).
As the method to set up of nonvolatile memory 8, situation about forming is arranged, and with monomer, for example EEPROM is formed at other chip in the IC of driving governor 5 chip, again situation about being connected with the IC chip of driving governor 5.Any method to set up no matter, the initial setting data that should set all are to import from the outside through exterior I/F circuit 1, by driver controller 5 and address control device 6, be stored in nonvolatile memory 8 decide in the address.
And, under the situation that nonvolatile memory 8 connects as other IC chip, also can with each signal wire that nonvolatile memory 8 is connected on electronic switch is set.That is, be in off-state, the state of putting of establishing by cable can be set, thereby under this open state by making these electronic switches, in manufacturing process, for example can the use test device, the initial setting data are directly deposited in nonvolatile memory 8 by the outside.
Fig. 2 represents the preservation state of the initial setting data of nonvolatile memory 8.With reference to Fig. 2, to the order of initial setting deposit data in nonvolatile memory 8 is illustrated.The initial setting data that should set are a pair of data by stored setting value constituted in the address of set-up register 7 and this address.
The address of nonvolatile memory 8 that should preserve the data ahead of a group initial setting data is determined.For example, establish this address and be " 1B " district (below, "--" expression HEX data).The initial setting data of a group are stored in nonvolatile memory 8 by this " 1B " district in turn to " 1C " " 1D ".Behind " 25 " district of the initial setting ED that is saved in this a group, and then preserve the data of expression " the initial setting ED of this a group ".Be that " 26 " district preserves end data in this embodiment.No matter for what kind of initial setting data group, end data all is identical, in this embodiment, is assigned as in the address of set-up register " AA ", is assigned as in its setting value " 55 ".At this, the initial setting data of a group of being preserved are illustrated in the right-hand member of Fig. 2 as second data group.
Equally, with other a group initial setting data group, for example as the 3rd data group be stored in nonvolatile memory 8 " 27 " district after " 31 " district the address in.In this case, also be in its back that is right after " 32 " district, to preserve end data.
And then, can also in identical set-up register address, preserve different setting values.Should example represent as first data group.This first data group is stored in the address in " 19 " district after " 00 " district of nonvolatile memory 8, also preserves end data in the district of its back that is right after " 1A ".
Like this, in the same address that can be kept at set-up register 7, a plurality of initial setting data groups are stored in nonvolatile memory 8.Therefore, in fact in set-up register 7, when setting the initial setting data, can set suitable initial setting data according to environment for use at that time.In this embodiment, be the explanation of carrying out with 2, but also can repeat to preserve the data group of any number more than 3.
And, when preserving the initial setting data,, can add the preservation parity data though do not illustrate among Fig. 2.About the unit of this parity checking, can be to the total of the address of set-up register and setting value and carry out, also can each carry out separately.
Then, to the required initial setting data in the initial setting data of will be preserved in the nonvolatile memory 8, to set-up register 7 decide the address and pass on the method for depositing and be illustrated.
In the address control device 6 of driver controller 5,, the first leading address of preserving the nonvolatile memory 8 of required initial setting data is appointed as address pointer corresponding to the signal that initial setting begins.Suppose that second data group is required initial setting data among Fig. 2, then specify address " 1B " district of nonvolatile memory 8, read the initial setting data from this regional address, in the initial setting data, in the shown address " 09 ", set-up register address, deposit this setting value " 50 ".Then, increase address pointer, read the initial setting data in " 1C " district thereafter, in set-up register address " 12 ", deposit this setting value " 36 ".Below,, deposit setting value until reading the last initial setting data of this second data group by same order.When the initial setting data of being preserved in the non-volatile memory addresses " 26 " of reading thereafter because data " AA " and setting value " 55 " that these data are expressions to be finished, so driver controller 5 can be discerned this a group initial setting data group and be read out, and finish this setting action.Like this, can set-up register 7 decide the primary data of address setting necessity, according to the setting value of in set-up register 7, depositing, and carry out initial setting respectively.
In the present invention, the setting of these initial setting data is not to be undertaken by outside MPU, but undertaken by the driving governor in this liquid crystal indicator 5.And, by the object that driving governor 5 sets, also be not only A group's initial setting data of having adjusted in the manufacturing process, for the B group's initial setting data that determined at each table apparatus of software development phase, also be same.
Then, in common action, the processing when having taken place to reset for a certain reason is illustrated to liquid crystal indicator of the present invention.
When having produced fluctuation, the current potential of power lead that causes system because of electrostatic pulse (to call ESD in the following text) etc. or signal wire etc. driving governor 5 is produced reset, but outside MPU does not produce when not resetting, driving governor 5 and be solidificated in state in the hardware in advance by its set-up register of controlling 7 grades (settings) one-tenth that is initialised.Such state happens occasionally under the situation of the anti-ESD quantity not sufficient of machine.
At this moment, in the past, carry out at MPU under the situation of initial setting processing, because MPU can not carry out initial setting processing again, so its abnormal state of affairs is just kept in demonstration etc. by module-external.
In contrast, in the present invention, when driving governor 5 was only arranged for a certain reason by improper resetting, the initial setting data can automatically be set again in the set-up register 7.That is to say, by the deviser's of system optimal design and the initial setting data group of in nonvolatile memory 8, being preserved, can be driven controller 5 and oneself automatically read, the setting again to set-up register 7 implementation initial setting data recovers only show state.
And, in nonvolatile memory 8, owing to can preserve a plurality of different initial setting data group according to environment for use selectively, so when the setting again that resets, can select preassigned initial setting data group for same set-up register address.
Also have, for only there being driving governor 5 to reset, and the MPU countermeasure of reset case not on the other hand can be taked to have been resetted to the MPU of outside notice by driving governor 5, and MPU then carries out the processing of setting again according to this notice; Or MPU is detecting the measures such as processing of setting again of carrying out when resetting often to the driving governor monitoring.But, under above-mentioned any situation, MPU all since in program design, and the processing of MPU increases burden.And then, also must prepare in order to ensure required means such as this notice or supervision.
Therefore, as the present invention, only constitute the liquid crystal indicator side of (making 1 chip～several chips), just can automatically reply, thereby have very big advantages such as easy, the anti-unexpected interference capability of design is strong by reset mode in module.
Yet nonvolatile memory 8 can form in the IC of driving governor 5 chip, also can adopt separately to form on other chip, again the structure that is connected with the IC chip of driving governor 5.
Under situation about being connected to form, also can select not connect nonvolatile memory 8 at nonvolatile memory 8 as independent other IC chip.Therefore, when emphasizing to reduce cost, can from the component parts of liquid crystal indicator, deduct the cost of nonvolatile memory 8 parts.
Do not install in driving governor 5 under the situation (this also comprises owing to assembly failure or be subjected to impacting etc. makes the situation about disconnecting that connects) of (not connecting) nonvolatile memory 8, this splicing ear of driving governor 5 just becomes off-state.By allowing this input terminal become the particular state identical with the end of input data, to draw or pull-down state on for example, response is returned end data all the time from the sense order of driving governor 5.And, also can adopt to allow this input terminal for example be in pull-up state, be judged to be NG (not load) if receive the input signal of overall height, allow the non-existent method in address of this set-up register.
This situation is owing to can not obtain the initial setting data from nonvolatile memory 8, so each setting value at first is in advance at state fixing described in the hardware, promptly is set at default value.Like this, can prevent to set for nonsensical data by mistake.In addition, also the situation of not loading nonvolatile memory can be prenoticed MPU, the setting for preparing in advance by MPU.
Thus,, also nonvolatile memory 8 might not be installed, omit this being in the liquid crystal indicator of prerequisite with the system of reading initial setting data in the nonvolatile memory 8 by driving governor 5, can be corresponding with requiring of reducing cost.
And, can also display screen 9 be separated as complicated variant from the structure of module.In this case, in the present invention, display device (display module) and display drive apparatus (driver module) are alternately read.
Also have, above explanation is only to carry out for liquid crystal indicator, but the present invention can certainly be used for the display device that plasm display device (PDP) waits other form.
According to one of the present invention's display unit, the control part in its module can be deposited non-volatile Reservoir decide to preserve in the address, needed a group initial setting data (set-up register Address and setting value thereof) directly read, carry out in turn initial in the address of deserving of set-up register Set. So the initial setting action just becomes simple.
According to the present invention's two display unit, can be arranged on outside MPU equal controller Between, by exterior I/F section, show data, initial setting data and other data Exchange.
According to the present invention's three display unit, owing between the initial setting data group, deposited end Data are so control part only gives non-volatile memories with the first leading address of a group initial setting data Device just can be read this a group initial setting data.
According to the present invention's four display unit, (namely set and deposit the ground of section for same setting item The location) can preserve different setting values, can carry out thus can matching with environment for use Good initial setting.
According to the present invention's five display unit, taken place since electrostatic pulse apply etc. that some is former Thereby cause, the control part of this module resets, and in the situation that MPU does not reset, control part Can change according to resetting the initial setting when resetting. So can avoid respectively setting value into For other state initializes.
According to the present invention's six display unit, because in a series of address of nonvolatile memory In, preserve continuously an initial setting data group and end data, so to non-volatile memories The preservation of device is just easy, and the initial setting data of understanding a group are also easy.
According to the present invention's seven display unit, can be with initial setting data (in manufacturing process Location and setting value thereof) directly be stored in nonvolatile memory. And, can be by tester etc. The initial setting data that write are directly carried out repetition audit by comparison, thus, can directly deposit The detection of reservoir.
According to the present invention's eight display unit, owing to can often advance the initial setting data of reading The row even-odd check is so can make the reliability of initial setting data improve. And, by carrying out Even-odd check can also judge that nonvolatile memory is not installed in the driving governor.
According to the present invention's nine display unit, at nonvolatile memory as independent other IC core Sheet and in the situation about connecting and composing, can select not to be connected with nonvolatile memory. So In the situation that attention reduces cost, do not connect nonvolatile memory, can be from liquid crystal indicator Formation in deduct nonvolatile memory, thereby reduce cost.
According to the present invention's ten display unit, at the beginning of can preventing from not obtaining from nonvolatile memory Beginning setting data mistiming is set the situation of nonsensical data for. In addition, might not load Nonvolatile memory if do not load, can satisfy the requirement that reduces cost.
Claims (10)
1. a display device is characterized in that: comprising: display part;
Preserve this display part should displaying contents the demonstration storage part;
Be connected with described display part, and according to the described drive division that should content displayed described display part is shown;
Deposit the setting of initial set value and deposit portion;
Be connected with described each one, and control their control part;
Be connected with described control part, order is according to the rules deposited by deposited the positional information of portion address and the initial setting data that initial set value corresponding with it formed by the described setting of expression, deposit follow a group initial setting data (initial setting data group) afterwards, the non-volatile memories portion of end data of expression " the initial setting data group finishes "
Described control part, according to the initial setting commencing signal, from described non-volatile memories portion decide start address and read the initial setting data in turn, the address of portion is deposited in the described setting that is comprised in mutually should the initial setting data, deposit in described setting and to deposit initial set value in the portion, when detecting described end data, finish the initial setting of initial setting data group.
2. display device according to claim 1 is characterized in that: have as being arranged on the outside control device and the exterior I/F portion of the interface between the described control part.
3. display device according to claim 2, it is characterized in that: in described non-volatile memories portion, stored a plurality of initial setting data group is clamped between them to major general's end data, and can reads required initial setting data group selectively.
4. display device according to claim 3, it is characterized in that: in described non-volatile memories portion, deposit the described setting of expression and deposit the different a plurality of initial setting data groups of initial set value of identical and corresponding its positional information of positional information of portion address.
5. according to each described display device in the claim 1～4, it is characterized in that: after earlier described control part being implemented to reset, described control part will be kept at the initial setting data in the described non-volatile memories portion, deposit in described setting again as initial set value and deposit in the portion.
6. display device according to claim 2, it is characterized in that: described control part, write instruction according to the initial setting data, from described non-volatile memories portion decide start address, deposit in turn the address of described set-up register with to initial set value that should the address as a pair of initial setting data, and in the next address after an initial setting data group finishes, deposit described end data.
7. display device according to claim 6, it is characterized in that: be provided with and the signal wire that is connected to described non-volatile memories portion from described control part can be set at the opening portion of establishing the state of putting by cable, and can be by the outside directly with described initial setting deposit data in described non-volatile memories portion.
8. according to claim 6 or 7 described display device, it is characterized in that:, odd and even data is also deposited in the lump, simultaneously when the initial setting data are deposited by described non-volatile memories portion, when the initial setting data are read by described non-volatile memories portion, carry out parity checking.
9. display device according to claim 2 is characterized in that: described non-volatile memories portion is made in the other IC chip different with constituting described control part IC chip.
10. display device according to claim 9 is characterized in that: when described non-volatile memories portion was not connected with described driving governor, described end data or invalid data can take place in described driving governor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002039709 | 2002-02-18 | ||
| JP2002039709A JP2003241730A (en) | 2002-02-18 | 2002-02-18 | Display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1441396A true CN1441396A (en) | 2003-09-10 |
| CN100354917C CN100354917C (en) | 2007-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031061249A Expired - Fee Related CN100354917C (en) | 2002-02-18 | 2003-02-18 | Display device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2003241730A (en) |
| KR (1) | KR20030069050A (en) |
| CN (1) | CN100354917C (en) |
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| CN101359442B (en) * | 2007-08-02 | 2012-08-22 | 瑞萨电子株式会社 | Display device, device driver circuit and operating method of display device |
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| JP5246241B2 (en) * | 2010-10-29 | 2013-07-24 | セイコーエプソン株式会社 | Projector and control method thereof |
| US10748479B2 (en) * | 2016-12-07 | 2020-08-18 | Semiconductor Energy Laboratories Co., Ltd. | Semiconductor device, display system, and electronic device |
| WO2018116381A1 (en) * | 2016-12-20 | 2018-06-28 | 堺ディスプレイプロダクト株式会社 | Control circuit, display device, correction system, control method and correction method |
| US10909895B2 (en) * | 2016-12-20 | 2021-02-02 | Sakai Display Products Corporation | Correction system, display panel, display device, correction method, and storage medium |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1044292C (en) * | 1993-05-13 | 1999-07-21 | 卡西欧计算机公司 | Display driving device |
| JP3610418B2 (en) * | 1995-08-08 | 2005-01-12 | カシオ計算機株式会社 | Liquid crystal driving method and liquid crystal display device |
| KR100242665B1 (en) * | 1997-08-01 | 2000-02-01 | 김영환 | Color lcd driver with yuv to rgb converter |
| JP3532415B2 (en) * | 1998-07-06 | 2004-05-31 | シャープ株式会社 | Information recording device |
| JP3936141B2 (en) * | 2000-01-12 | 2007-06-27 | 東芝マイクロエレクトロニクス株式会社 | RAM built-in display driver, and image display apparatus equipped with the display driver |
| JP3620434B2 (en) * | 2000-07-26 | 2005-02-16 | 株式会社日立製作所 | Information processing system |
-
2002
- 2002-02-18 JP JP2002039709A patent/JP2003241730A/en active Pending
-
2003
- 2003-01-24 KR KR10-2003-0004679A patent/KR20030069050A/en not_active Application Discontinuation
- 2003-02-18 CN CNB031061249A patent/CN100354917C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100359554C (en) * | 2003-11-19 | 2008-01-02 | 义隆电子股份有限公司 | Vernier edjustment device of liquid crystal display comparative voltage and its method |
| CN101111900B (en) * | 2005-01-27 | 2011-02-16 | 斯班逊有限公司 | Semi-conductor device, address assignment method |
| CN101359442B (en) * | 2007-08-02 | 2012-08-22 | 瑞萨电子株式会社 | Display device, device driver circuit and operating method of display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100354917C (en) | 2007-12-12 |
| KR20030069050A (en) | 2003-08-25 |
| JP2003241730A (en) | 2003-08-29 |
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