CN109637448A - PMOLED display module brightness adjusting device, system and method - Google Patents
PMOLED display module brightness adjusting device, system and method Download PDFInfo
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- CN109637448A CN109637448A CN201910025403.4A CN201910025403A CN109637448A CN 109637448 A CN109637448 A CN 109637448A CN 201910025403 A CN201910025403 A CN 201910025403A CN 109637448 A CN109637448 A CN 109637448A
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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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3216—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using a passive matrix
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
Abstract
The invention provides a device, a system and a method for adjusting the brightness of a PMOLED display module, relates to the field of display, and can solve the technical problems of large brightness difference and poor uniformity of the conventional PMOLED display module. The device comprises a flexible circuit board, a display driving chip and a display panel which are sequentially connected, wherein the flexible circuit board is used for receiving a brightness instruction sent by the MCU and transmitting the brightness instruction to the display driving chip; the flexible circuit board is provided with a level adjusting module; the level adjusting module is used for generating a level value corresponding to the brightness adjusting proportion data and outputting the level value to the display driving chip; the brightness adjustment proportion data is determined by the factory brightness and the target brightness of the display module; the display driving chip is used for generating a brightness driving signal based on the level value and the brightness instruction and outputting the brightness driving signal to the display panel. The device can improve the brightness difference of the PMOLED display module and improve the uniformity.
Description
Technical field
The present invention relates to display equipment technical field, more particularly, to a kind of PMOLED display module brightness adjusting device,
System and method.
Background technique
PMOLED (passive matrix Organic Light Emitting Diode) display module includes display panel, display driver chip and flexibility
Circuit board (Flexible Printed Circuit Board, FPC) composition.
As shown in Figure 1, existing PMOLED (passive matrix Organic Light Emitting Diode) display module brightness adjustment is electric at present
Route instruction receiving module and brightness drive module composition, command reception module receive the luminance instructions that MCU is issued, luminance instructions
The brightness of brightness register is modified, brightness drive module drives display panel according to the driving signal that brightness register exports.
It is above-mentioned since PMOLED display panel luminance difference is larger, be made of display panel, display driver chip and FPC
Display module brightness also generates biggish difference, splices especially for multi-disc display module in use, each PMOLED is shown
The luminance difference of mould group is more significant.
To sum up, existing PMOLED display module has that luminance difference is larger, homogeneity is poor.
Summary of the invention
In view of this, the purpose of the present invention is to provide PMOLED display module brightness adjusting device, system and method, with
Alleviate existing PMOLED display module there are luminance differences the technical problem larger, homogeneity is poor.
In a first aspect, the embodiment of the invention provides a kind of PMOLED display module brightness adjusting device, including successively phase
Flexible circuit board, display driver chip and the display panel of connection, the flexible circuit board is for receiving MCU
The luminance instructions are simultaneously transferred to the display drive by the luminance instructions of (Microcontroller Unit, microcontroller) transmission
Dynamic chip；Level adjustment module is provided on the flexible circuit board；
The level adjustment module is for generating with level value corresponding to brightness adjustment ratio data and output is to described
Display driver chip；The brightness adjustment ratio data is determined by the factory brightness and object brightness of display module；
The display driver chip is used to generate brightness driving signal simultaneously based on the level value and the luminance instructions
It exports to the display panel.
With reference to first aspect, the embodiment of the invention provides the first possible embodiments of first aspect, wherein institute
Stating level adjustment module includes that the first level adjustment cells D 3, second electrical level adjust cells D 4, third level adjustment cells D 5, the
Four level adjustment cells Ds 6, one end of the first level adjustment cells D 3, second electrical level adjust one end of cells D 4, third electricity
One end of Heibei provincial opera section cells D 5, one end of the 4th level adjustment cells D 6 are connected with display driver chip, the first level tune
Save the other end of cells D 3, second electrical level adjusts the other end of cells D 4, the other end of third level adjustment cells D 5, the 4th electricity
The other end of Heibei provincial opera section cells D 6 is grounded.
With reference to first aspect, the embodiment of the invention provides second of possible embodiments of first aspect, wherein states
First level adjustment cells D 3, second electrical level adjust cells D 4, third level adjustment cells D 5, the 4th level adjustment cells D 6
For connecting line.
With reference to first aspect, the embodiment of the invention provides the third possible embodiments of first aspect, wherein institute
Stating display driver chip includes: command reception module, interface read module, adjustment ratio module, brightness synthesis module, brightness drive
Dynamic model block, the input terminal of the interface read module are connected with the level adjustment module；The interface read module it is defeated
The input terminal of outlet and the adjustment ratio module is connected；The output end of the adjustment ratio module synthesizes mould with the brightness
The first input end of block is connected；The input terminal of described instruction receiving module is connected with the MCU；Described instruction receiving module
Output end be connected with the second input terminal of the brightness synthesis module；The output end of the brightness synthesis module with it is described bright
The input terminal of degree drive module is connected, and the output end of the brightness drive module is connected with the display panel；
The interface read module is used to obtain the level value of the level adjustment module output；
The adjustment ratio module is used to obtain the brightness adjustment corresponding with the level value according to the level value
Ratio data；
Described instruction receiving module is used to receive the luminance instructions of MCU sending；
The brightness synthesis module is used to synthesize brightness based on the luminance instructions and the brightness adjustment ratio data
Driving data；
The brightness drive module is used to generate brightness driving signal based on the brightness driving data and by the brightness
Driving signal is exported to display panel.
The third possible embodiment with reference to first aspect, the embodiment of the invention provides the 4th kind of first aspect
Possible embodiment, wherein the display driver chip further include: be set to the interface read module and adjustment ratio
Brightness adjustment register, the adjustment that is set between the adjustment ratio module and the brightness synthesis module between example module
Ratio register, the first order brightness register being set between described instruction receiving module and the brightness synthesis module and
The second level brightness register being set between the brightness synthesis module and the brightness drive module.
The third possible embodiment with reference to first aspect, the embodiment of the invention provides the 5th kind of first aspect
Possible embodiment, wherein the adjustment ratio module is previously provided with FPC digital interface level and brightness adjustment ratio
Mapping table；The adjustment ratio module is used to obtain institute corresponding with the level value by inquiring the mapping table
State brightness adjustment ratio data.
Second aspect, the embodiment of the present invention also provide a kind of PMOLED display module brightness adjustment system, comprising: MCU and
PMOLED display module brightness adjusting device as described in any one of first aspect and its possible embodiment；It is described
PMOLED display module brightness adjusting device is connected with the MCU.
In conjunction with second aspect, the embodiment of the invention provides the first possible embodiments of second aspect, wherein institute
State PMOLED display module brightness adjusting device be it is multiple, multiple PMOLED display module brightness adjusting devices respectively with institute
MCU is stated to be connected.
The third aspect, the embodiment of the present invention also provide a kind of PMOLED display module luminance regulating method, are applied to such as the
On the one hand and its described in any item PMOLED display module brightness adjusting devices of possible embodiment, this method are driven by display
Dynamic chip executes, comprising:
Receive the luminance instructions that MCU is sent；
Obtain the level value of level adjustment module output；
Based on the level value and luminance instructions synthesis brightness driving signal and export to the display panel.
In conjunction with the third aspect, the embodiment of the invention provides the first possible embodiments of the third aspect, wherein institute
It states based on the level value and luminance instructions synthesis brightness driving signal and exports to the display panel, comprising:
The brightness adjustment ratio data corresponding with the level value is obtained according to the level value；
Brightness driving data is synthesized based on the luminance instructions and the brightness adjustment ratio data；
Brightness driving signal is generated based on the brightness driving data and exports the brightness driving signal to display surface
Plate.
The embodiment of the present invention brings following the utility model has the advantages that PMOLED display module brightness tune provided in an embodiment of the present invention
Engagement positions, system and method, wherein the PMOLED display module brightness adjusting device, including being sequentially connected the flexible circuit connect
Plate, display driver chip and display panel, flexible circuit board are used to receive the luminance instructions of MCU transmission and transmit luminance instructions
To display driver chip；Level adjustment module is provided on flexible circuit board；Level adjustment module is for generation and brightness adjustment
Level value corresponding to ratio data is simultaneously exported to display driver chip；Brightness adjustment ratio data is the factory by display module
What brightness and object brightness determined；Display driver chip is used to generate brightness driving signal simultaneously based on level value and luminance instructions
It exports to display panel.Therefore, technical solution provided in an embodiment of the present invention can alleviate existing PMOLED display module and deposit
In the technical problem that luminance difference is larger, homogeneity is poor, improve the luminance difference of PMOLED display module, improve homogeneity,
And then improve the shipment rate in the related application field of Mo Zu factory.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention are in specification, claims
And specifically noted structure is achieved and obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of existing PMOLED display module brightness adjusting device；
Fig. 2 is a kind of structural schematic diagram of PMOLED display module brightness adjusting device provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the display driver chip of Fig. 2；
Fig. 4 is a kind of structural schematic diagram of PMOLED display module brightness adjustment system provided in an embodiment of the present invention；
Fig. 5 is a kind of flow chart of PMOLED display module luminance regulating method provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Current existing MOLED (passive matrix Organic Light Emitting Diode) display module brightness regulating circuit is by command reception
Module and brightness drive module composition, command reception module receive the luminance instructions that MCU is issued, and luminance instructions modify brightness deposit
The brightness of device, brightness drive module drive display panel according to the driving signal that brightness register exports, are based on this, and the present invention is real
A kind of PMOLED display module brightness adjusting device, the system and method for applying example offer, can alleviate existing PMOLED and show
The technical problem that there are luminance differences is larger for mould group, homogeneity is poor improves the luminance difference of PMOLED display module, improves equal
One property；The display module luminance difference of batch production is controlled in a lesser mistake in addition, the technical program is advantageously implemented
Poor range.
For convenient for understanding the present embodiment, first to a kind of PMOLED display module disclosed in the embodiment of the present invention
Brightness adjusting device describes in detail.
Embodiment one:
As shown in Figures 2 and 3, the embodiment of the invention provides a kind of PMOLED display module brightness adjusting devices, including
It is sequentially connected the flexible circuit board FPC100, display driver chip 200 and display panel 300 connect, above-mentioned flexible circuit board is used
In receiving luminance instructions that MCU is sent and above-mentioned luminance instructions be transferred to above-mentioned display driver chip；Above-mentioned flexibility
Level adjustment module 400 is provided on circuit board；
Wherein, above-mentioned level adjustment module 400 is for generating with level value corresponding to brightness adjustment ratio data simultaneously
It exports to above-mentioned display driver chip；Above-mentioned brightness adjustment ratio data is bright by the factory brightness of display module and target
Degree determination；
Above-mentioned display driver chip 200 is used to generate brightness based on above-mentioned level value and above-mentioned luminance instructions and drive
Dynamic signal is simultaneously exported to above-mentioned display panel 300.
Specifically, being provided with forwarding module (being not shown in the drawing) on flexible circuit board, digital communication interface (is not illustrated in figure
In) and level adjustment module 400, wherein forwarding module is used to receive the luminance instructions of MCU transmission and is forwarded to display driving
Chip；Digital communication interface for realizing level adjustment module and display driver chip connection；Level adjustment module is for connecing
It receives level value corresponding to the processing generation and brightness adjustment ratio data of user and exports to display driver chip, brightness adjustment
Ratio data is determined by the factory brightness and object brightness of display module；Level adjustment module passes through above-mentioned digital communication
Interface is connected with the interface read module of above-mentioned display driver chip.
Further, referring to Fig. 2, above-mentioned level adjustment module 400 includes the first level adjustment cells D 3, second electrical level
Adjusting cells D 4, third level adjustment cells D 5, the 4th level adjustment cells D 6, the one of the first above-mentioned level adjustment cells D 3
End, second electrical level adjust one end of cells D 4, one end of third level adjustment cells D 5, the 4th level adjustment cells D 6 one end
It is connected with display driver chip, the other end, the second electrical level of the first above-mentioned level adjustment cells D 3 adjust the another of cells D 4
End, the other end of third level adjustment cells D 5, the 4th level adjustment cells D 6 the other end be grounded.
Specifically, being connected to pull-up resistor (being not shown in the drawing) inside display driver chip, pull-up resistor is multiple, pull-up electricity
The quantity of resistance is identical as the quantity of level adjustment unit, and one end of the first above-mentioned level adjustment cells D 3, second electrical level are adjusted
One end of cells D 4, one end of third level adjustment cells D 5, the 4th level adjustment cells D 6 one end respectively with pull-up resistor
It is connected；
First level adjustment cells D 3, second electrical level adjust cells D 4, third level adjustment cells D 5, the 4th level adjustment
The original levels of cells D 6 are defaulted as low level 0, then can be by beating if you need to which a certain level adjustment unit is changed into high level
Hole machine, which carries out punching to the level adjustment unit, realizes it vacantly.
Further, the first above-mentioned level adjustment cells D 3, second electrical level adjust cells D 4, third level adjustment unit
D5, the 4th level adjustment cells D 6 are connecting line.
It should be noted that when leaving the factory, testing first display module brightness, the factory for testing display module is bright
Degree determines brightness range locating for factory brightness；In other words, factory brightness can be obtained by test；And according to brightness pair
Display module is sorted out, such as it is one kind that brightness range, which is -15%~-10%, and -10%~-5% is one kind, and -5%
~+5% is one kind, and+5%~+10% is one kind, and+10%~+15% is one kind；..., wherein brightness range is -5%
~+5% is object brightness.
Then, the corresponding FPC digital communication interface level of every a kind of mould group is determined according to factory brightness and object brightness；Tool
When body is realized, brightness adjustment ratio is first calculated based on factory brightness and object brightness, further according to brightness adjustment ratio and FPC number
The corresponding relationship of communication interface level determines FPC digital communication interface level, referring in particular to table 1；
The brightness range of 1 display module of table, brightness adjustment ratio, level mapping table
The corresponding relationship of above-mentioned FPC digital communication interface level and brightness adjustment ratio can preset and be stored in
In display driver chip, as shown in table 2；It is calculated in addition, only being shown in table 1 according to factory brightness and object brightness
The value of one of brightness adjustment ratio, certain brightness adjustment ratio can also be according to factory brightness range and object brightness model
The value for other brightness adjustment ratios that the value enclosed obtains, for example, for factory brightness range be -15%~-10% display mould
Group, object brightness are -5%~+5%, and in order to make to dispatch from the factory, brightness range is fallen into subject brightness range, and brightness adjustment ratio can be with
It is 10% or 15%, value 10% is illustrated only in table, naturally it is also possible to it is value 15%, it is right with brightness adjustment ratio 15% accordingly
The level answered also changes correspondingly, and is referred to table 2 and the level of level adjustment module is adjusted；
The mapping table of table 2 FPC digital interface level and brightness adjustment ratio
The level adjustment of level adjustment module is briefly described below:
Display driver chip is internally provided with and external level adjustment module D [6:3] (the i.e. pull-up that D6 is connected to D3)
Resistance, when the external D [6:3] of display driver chip be in it is hanging when show as high level.The upper level adjustment module D [6:3] of FPC
It is initially low level, it, then can be by puncher by level adjustment if you need to which level adjustment unit therein is changed into high level
The corresponding position punching of module D [6:3] keeps it hanging, and Fig. 3, which is shown, punches the level adjustment mould for making D4 be in high level to D4
Block.
It is, of course, understood that in other embodiments, electricity that can also by other means to level adjustment module
It is flat to be adjusted, such as the mode of outer connecting resistance.
Further, above-mentioned display driver chip includes: command reception module, interface read module, adjustment proportional die
Block, brightness synthesis module, brightness drive module, the input terminal of above-mentioned interface read module and above-mentioned level adjustment module phase
Connection；The output end of above-mentioned interface read module and the input terminal of above-mentioned adjustment ratio module are connected；Above-mentioned adjustment
The output end of ratio module is connected with the first input end of above-mentioned brightness synthesis module；Above-mentioned command reception module it is defeated
Enter end to be connected with above-mentioned MCU；The second of the output end of above-mentioned command reception module and above-mentioned brightness synthesis module is defeated
Enter end to be connected；The output end of above-mentioned brightness synthesis module is connected with the input terminal of above-mentioned brightness drive module, above-mentioned
The output end of brightness drive module be connected with above-mentioned display panel；
Wherein above-mentioned interface read module is used to obtain the level value of above-mentioned level adjustment module output；
Above-mentioned adjustment ratio module is used to be obtained according to above-mentioned level value corresponding with above-mentioned level value above-mentioned
Brightness adjustment ratio data；
Above-mentioned command reception module is used to receive the luminance instructions of MCU sending；
Above-mentioned brightness synthesis module is used to close based on above-mentioned luminance instructions and above-mentioned brightness adjustment ratio data
At brightness driving data；
Above-mentioned brightness drive module is used to generate brightness driving signal based on above-mentioned brightness driving data and will be above-mentioned
Brightness driving signal export to display panel.
Further, above-mentioned display driver chip further include: be set to above-mentioned interface read module and above-mentioned tune
Brightness adjustment register between whole ratio module, be set to above-mentioned adjustment ratio module and above-mentioned brightness synthesis module it
Between adjustment ratio register, the first order that is set between above-mentioned command reception module and above-mentioned brightness synthesis module it is bright
Degree register and the second level brightness being set between above-mentioned brightness synthesis module and above-mentioned brightness drive module deposit
Device.
Further, above-mentioned command reception module is also used to generate level signal based on above-mentioned level value；Brightness tune
Whole register is used to receive and store above-mentioned level value and/or level signal transmitting；
Above-mentioned adjustment ratio register is for receiving and storing above-mentioned brightness adjustment ratio data；
Above-mentioned first order brightness register is for receiving and storing luminance instructions；
Above-mentioned second level brightness register is for receiving and storing brightness driving data and/or brightness driving signal.
Further, above-mentioned adjustment ratio module is previously provided with FPC digital interface level and brightness adjustment ratio
Mapping table (i.e. above-mentioned table 2)；Above-mentioned adjustment ratio module be used to obtain by inquiring above-mentioned mapping table and
The corresponding above-mentioned brightness adjustment ratio data of above-mentioned level value.
Specifically, above-mentioned display driver chip includes: command reception module 201, interface read module referring to Fig. 3
203, ratio module 205, brightness synthesis module 207, brightness drive module 209, brightness adjustment register 204, adjustment ratio are adjusted
Example register 206, first order brightness register 202 and second level brightness register 208；Above-mentioned interface read module it is defeated
Enter end to be connected by the digital communication interface (abbreviation FPC digital communication interface) of flexible circuit board with above-mentioned level adjustment module
It connects；The output end of above-mentioned interface read module 203 passes through brightness adjustment register 204 and above-mentioned adjustment ratio module 205
Input terminal be connected；The output end of above-mentioned adjustment ratio module 205 by above-mentioned adjustment ratio register 206 with it is above-mentioned
The first input end of brightness synthesis module 207 be connected；The input terminal of above-mentioned command reception module passes through above-mentioned flexibility
The forwarding module of circuit board is connected with above-mentioned MCU；The output end of above-mentioned command reception module 201 passes through first order brightness
Register 202 is connected with the second input terminal of above-mentioned brightness synthesis module 207；Above-mentioned brightness synthesis module 207 it is defeated
Outlet is connected by second level brightness register 208 with the input terminal of above-mentioned brightness drive module 209, and above-mentioned brightness is driven
The output end of dynamic model block is connected with above-mentioned display panel；
Above-mentioned interface read module is for being obtained and being read by the FPC digital communication interface being connected with level adjustment module
The level value of above-mentioned level adjustment module output out；Above-mentioned interface read module is also used to generate based on above-mentioned level value
Level signal；Above-mentioned level signal is transmitted and is stored to brightness adjustment register；Here level signal is the two of one 8
System number, such as level value are 0010, then level signal is 00000010；It include level value in level signal.
Above-mentioned adjustment ratio module is used to be obtained and above-mentioned level value according to the level value in above-mentioned level signal
Corresponding above-mentioned brightness adjustment ratio data；Above-mentioned brightness adjustment ratio data is transmitted and is stored to adjustment ratio and deposits
Device；
Above-mentioned command reception module is used to receive the brightness that MCU is issued by the forwarding module of above-mentioned flexible circuit board
Instruction；Above-mentioned luminance instructions are transmitted and are stored to first order brightness register, and above-mentioned luminance instructions are above-mentioned for modifying
First order brightness register brightness；
Above-mentioned brightness synthesis module is used to close based on above-mentioned luminance instructions and above-mentioned brightness adjustment ratio data
At brightness driving data；Above-mentioned brightness driving data is transmitted and is stored to second level brightness register；
Above-mentioned brightness drive module is then based on for obtaining brightness driving data from second level brightness register first
Brightness driving data generates brightness driving signal, finally exports above-mentioned brightness driving signal to display panel, driving display
Display panel.
PMOLED display module brightness adjusting device provided in an embodiment of the present invention, including being sequentially connected the flexible circuit connect
Plate, display driver chip and display panel, flexible circuit board are used to receive the luminance instructions of MCU transmission and transmit luminance instructions
To display driver chip；Level adjustment module is provided on flexible circuit board；Level adjustment module is for generation and brightness adjustment
Level value corresponding to ratio data is simultaneously exported to display driver chip；Brightness adjustment ratio data is the factory by display module
What brightness and object brightness determined；Display driver chip is used to generate brightness driving signal simultaneously based on level value and luminance instructions
It exports to display panel.Therefore, technical solution provided in an embodiment of the present invention can alleviate existing PMOLED display module and deposit
In the technical problem that luminance difference is larger, homogeneity is poor, improve the luminance difference of PMOLED display module, improve homogeneity,
And then improve the shipment rate in the related application field of Mo Zu factory.
Embodiment two:
As shown in figure 4, the embodiment of the invention also provides a kind of PMOLED display module brightness adjustment systems, comprising:
MCU500 and such as above-mentioned PMOLED display module brightness adjusting device of embodiment one；Above-mentioned PMOLED display module brightness
Adjustment device is connected with above-mentioned MCU.
Specifically, MCU500 is connected with flexible circuit board FPC400.
Further, above-mentioned PMOLED display module brightness adjusting device is multiple, and multiple above-mentioned PMOLED are shown
Mould group brightness adjusting device is connected with above-mentioned MCU respectively.
PMOLED display module brightness adjustment system provided in an embodiment of the present invention, with PMOLED provided by the above embodiment
Display module brightness adjusting device technical characteristic having the same reaches identical so also can solve identical technical problem
Technical effect.
PMOLED display module brightness adjusting device provided in an embodiment of the present invention, system and method show mould to PMOLED
The homogeneity of group brightness is of great significance to, and can significantly improve the homogeneity of PMOLED display module brightness, especially
It is the splicing of multi-disc display module in use, due to higher to the uniformity requirements of mould group brightness, the PMOLED display module brightness
Adjustment device, system can satisfy this requirement.It will affect mould compared to traditional PMOLED display module brightness adjusting device
Group factory related application field shipment, the PMOLED display module brightness adjusting device, system due to homogeneity it is preferable, favorably
Shipment rate in the related application field for improving Mo Zu factory.
Embodiment three:
As shown in figure 5, being applied to real the embodiment of the invention also provides a kind of PMOLED display module luminance regulating method
The above-mentioned PMOLED display module brightness adjusting device of example one is applied, this method is executed by display driver chip, comprising:
Step S501 receives the luminance instructions that MCU is sent；
Specifically, the command reception module of display driver chip receives the luminance instructions that MCU is sent by FPC, brightness refers to
Enable the brightness for modifying the first order brightness register in display driver chip.
Step S502 obtains the level value of level adjustment module output.
Specifically, the interface read module of display driver chip reads level adjustment module by FPC digital communication interface
The level value of output；
Step S503 based on level value and luminance instructions synthesis brightness driving signal and is exported to above-mentioned display surface
Plate.
When specific implementation, step S503 includes:
1, above-mentioned brightness adjustment ratio data corresponding with above-mentioned level value is obtained according to above-mentioned level value；
Specifically, the adjustment proportional die root tuber of display driver chip according to above-mentioned level value search mapping table obtain with
The corresponding above-mentioned brightness adjustment ratio data of above-mentioned level value；
2, brightness driving data is synthesized based on above-mentioned luminance instructions and above-mentioned brightness adjustment ratio data；
The brightness synthesis module of display driver chip is based on above-mentioned luminance instructions and above-mentioned brightness adjustment proportional numbers
According to synthesis brightness driving data.
3, based on above-mentioned brightness driving data generate brightness driving signal and by above-mentioned brightness driving signal export to
Display panel.
The brightness drive module of display driver chip generates brightness driving signal based on above-mentioned brightness driving data and will
Above-mentioned brightness driving signal is exported to display panel.
PMOLED display module luminance regulating method provided in an embodiment of the present invention, with PMOLED provided by the above embodiment
Display module brightness adjusting device technical characteristic having the same reaches identical so also can solve identical technical problem
Technical effect.
The embodiment of the invention also provides a kind of smart machine (such as the wearable devices such as Intelligent bracelet), including embodiment
The two PMOLED display module brightness adjustment systems referred to.
Unless specifically stated otherwise, the opposite step of the component and step that otherwise illustrate in these embodiments, digital table
It is not limit the scope of the invention up to formula and numerical value.
The technical effect of equipment, system provided by the embodiment of the present invention, method, realization principle and generation and aforementioned dress
It is identical to set embodiment, to briefly describe, equipment, system, embodiment of the method part do not refer to place, can refer to aforementioned device implementation
Corresponding contents in example.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description
, can be with reference to the corresponding process in aforementioned device embodiment with the specific work process of method, details are not described herein.
In all examples being illustrated and described herein, any occurrence should be construed as merely illustratively, without
It is as limitation, therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
The flow chart and block diagram in the drawings show the system of multiple embodiments according to the present invention, method and computer journeys
The architecture, function and operation in the cards of sequence product.In this regard, each box in flowchart or block diagram can generation
A part of one module, section or code of table, a part of above-mentioned module, section or code include one or more
Executable instruction for implementing the specified logical function.It should also be noted that in some implementations as replacements, institute in box
The function of mark can also occur in a different order than that indicated in the drawings.For example, two continuous boxes can actually
It is basically executed in parallel, they can also be executed in the opposite order sometimes, and this depends on the function involved.It is also noted that
It is the combination of each box in block diagram and or flow chart and the box in block diagram and or flow chart, can uses and execute rule
The dedicated hardware based system of fixed function or movement is realized, or can use the group of specialized hardware and computer instruction
It closes to realize.
In addition, in the description of the embodiment of the present invention unless specifically defined or limited otherwise, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, and can be directly connected, can also can be two members indirectly connected through an intermediary
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition
Concrete meaning.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term "inner", "outside" is base
In orientation or positional relationship shown in the drawings, it is merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion
Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of invention.In addition, term " first ", " second ", " third " are used for description purposes only, it is not understood to indicate or imply
Relative importance.
The computer program product of PMOLED display module luminance regulating method, packet are carried out provided by the embodiment of the present invention
The computer readable storage medium for storing the executable non-volatile program code of processor is included, above-mentioned program code includes
Instruction can be used for executing method above-mentioned in previous methods embodiment, specific implementation can be found in embodiment of the method, herein not
It repeats again.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.The apparatus embodiments described above are merely exemplary, for example, the division of the unit,
Only a kind of logical function partition, there may be another division manner in actual implementation, in another example, multiple units or components can
To combine or be desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or beg for
The mutual coupling, direct-coupling or communication connection of opinion can be through some communication interfaces, device or unit it is indirect
Coupling or communication connection can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in the executable non-volatile computer-readable storage medium of a processor.Based on this understanding, of the invention
Technical solution substantially the part of the part that contributes to existing technology or the technical solution can be with software in other words
The form of product embodies, which is stored in a storage medium, including some instructions use so that
One computer equipment (can be personal computer, server or the network equipment etc.) executes each embodiment institute of the present invention
State all or part of the steps of method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-
Only Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can be with
Store the medium of program code.
Finally, it should be noted that embodiment described above, only a specific embodiment of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, those skilled in the art should understand that: anyone skilled in the art
In the technical scope disclosed by the present invention, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover in protection of the invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of PMOLED display module brightness adjusting device, including being sequentially connected the flexible circuit board connect, display driver chip
And display panel, the flexible circuit board are used to receive the luminance instructions of MCU transmission and are transferred to the luminance instructions described
Display driver chip；It is characterized in that, being provided with level adjustment module on the flexible circuit board；
The level adjustment module is for generating with level value corresponding to brightness adjustment ratio data and output is to the display
Driving chip；The brightness adjustment ratio data is determined by the factory brightness and object brightness of display module；
The display driver chip is used to generate brightness driving signal based on the level value and the luminance instructions and export
To the display panel.
2. the apparatus according to claim 1, which is characterized in that the level adjustment module includes the first level adjustment unit
D3, second electrical level adjust cells D 4, third level adjustment cells D 5, the 4th level adjustment cells D 6, first level adjustment
One end of cells D 3, second electrical level adjust one end of cells D 4, one end of third level adjustment cells D 5, the 4th level adjustment list
One end of first D6 is connected with display driver chip, and the other end, the second electrical level of the first level adjustment cells D 3 adjust unit
The other end of D4, the other end of third level adjustment cells D 5, the 4th level adjustment cells D 6 the other end be grounded.
3. the apparatus of claim 2, which is characterized in that the first level adjustment cells D 3, second electrical level are adjusted
Cells D 4, third level adjustment cells D 5, the 4th level adjustment cells D 6 are connecting line.
4. the apparatus according to claim 1, which is characterized in that the display driver chip includes: command reception module, connects
Mouthful read module, adjustment ratio module, brightness synthesis module, brightness drive module, the input terminal of the interface read module with
The level adjustment module is connected；The output end of the interface read module and the input terminal of the adjustment ratio module are connected
It connects；The output end of the adjustment ratio module is connected with the first input end of the brightness synthesis module；Described instruction receives
The input terminal of module is connected with the MCU；The second of the output end of described instruction receiving module and the brightness synthesis module
Input terminal is connected；The output end of the brightness synthesis module is connected with the input terminal of the brightness drive module, described bright
The output end of degree drive module is connected with the display panel；
The interface read module is used to obtain the level value of the level adjustment module output；
The adjustment ratio module is used to obtain the brightness adjustment ratio corresponding with the level value according to the level value
Data；
Described instruction receiving module is used to receive the luminance instructions of MCU sending；
The brightness synthesis module is used for based on the luminance instructions and brightness adjustment ratio data synthesis brightness driving
Data；
The brightness drive module is used to generate brightness driving signal based on the brightness driving data and drives the brightness
Signal is exported to display panel.
5. device according to claim 4, which is characterized in that the display driver chip further include: be set to described connect
Brightness adjustment register between mouthful read module and the adjustment ratio module is set to the adjustment ratio module and described
Adjustment ratio register between brightness synthesis module is set between described instruction receiving module and the brightness synthesis module
First order brightness register and the second level that is set between the brightness synthesis module and the brightness drive module it is bright
Spend register.
6. device according to claim 4, which is characterized in that the adjustment ratio module is previously provided with FPC number and connects
The mapping table of mouth level and brightness adjustment ratio；The adjustment ratio module is used to obtain by inquiring the mapping table
To the brightness adjustment ratio data corresponding with the level value.
7. a kind of PMOLED display module brightness adjustment system characterized by comprising MCU and any one of such as claim 1-6
The PMOLED display module brightness adjusting device；The PMOLED display module brightness adjusting device is connected with the MCU
It connects.
8. system according to claim 7, which is characterized in that the PMOLED display module brightness adjusting device is more
A, multiple PMOLED display module brightness adjusting devices are connected with the MCU respectively.
9. a kind of PMOLED display module luminance regulating method, which is characterized in that be applied to as described in claim any one of 1-6
PMOLED display module brightness adjusting device, the method executes by display driver chip, comprising:
Receive the luminance instructions that MCU is sent；
Obtain the level value of level adjustment module output；
Based on the level value and luminance instructions synthesis brightness driving signal and export to the display panel.
10. according to the method described in claim 9, it is characterized in that, described be based on the level value and the luminance instructions
It synthesizes brightness driving signal and exports to the display panel, comprising:
The brightness adjustment ratio data corresponding with the level value is obtained according to the level value；
Brightness driving data is synthesized based on the luminance instructions and the brightness adjustment ratio data；
Brightness driving signal is generated based on the brightness driving data and exports the brightness driving signal to display panel.
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| CN201910025403.4A CN109637448B (en) | 2019-01-10 | 2019-01-10 | PMOLED display module brightness adjusting device, system and method |
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| CN110570814A (en) * | 2019-09-16 | 2019-12-13 | 芯颖科技有限公司 | Visual effect compensation method and device for PMOLED display screen and storage medium |
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