CN104469346B - Signal output circuit and device - Google Patents
Signal output circuit and device Download PDFInfo
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- CN104469346B CN104469346B CN201410715695.1A CN201410715695A CN104469346B CN 104469346 B CN104469346 B CN 104469346B CN 201410715695 A CN201410715695 A CN 201410715695A CN 104469346 B CN104469346 B CN 104469346B
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Abstract
The embodiment of the invention provides a signal output circuit and device and relates to the field of electronic equipment. The signal output circuit and device are used for outputting data information for lightening different types of liquid crystal display panels and achieving universality. The signal output circuit comprises a master control chip, an external data storage device, a first switch, at least one first resistor and a power supply. Each input end of the first switch is connected with the power supply, and each output end of the first switch is connected with one end of the first resistor and the master control chip respectively. The master control chip is further connected with the external data storage device and is used for obtaining state combination information produced by the first switch, looking up pre-stored liquid crystal display panel specification parameters matched with the state combination information of the first switch in the external data storage device, invoking pre-stored 4K2K picture information in the external data storage device and processing and outputting the 4K2K picture information to a liquid crystal display panel for display according to the liquid crystal display panel specification parameters.
Description
Technical field
The present invention relates to electronic device field, more particularly, to a kind of signal output apparatus and device.
Background technology
4K2K is a kind of abbreviation of high definition display resolution, has reached 3840 × 2160 physical resolution so that showing
The total pixel number amount of equipment has reached more than 8,000,000.Therefore, become using 4K2K liquid crystal panel in large-scale liquid crystal module at present
Trend.And liquid crystal module is aborning, in order to improve the reliability of liquid crystal module, ageing management is requisite link.And
In order to realize ageing management it is necessary first to light 4K2K liquid crystal panel, then aging inspection is carried out to the 4K2K liquid crystal panel lighted
Survey.
In the prior art, the type of 4K2K liquid crystal panel can be (for example several according to the specifications parameter of 4K2K liquid crystal panel
The group several subregion of pixel) dividing, and 4K2K liquid crystal panel generally carries out associative operation by matched television set chip
To light.But television set chip generally only stores the corresponding specifications parameter of liquid crystal panel of a certain type that is to say, that one
Individual TV master chip can only mate a type of 4K2K liquid crystal panel, and the specification according to matched 4K2K liquid crystal panel
Parameter carries out to the picture reading showing on this 4K2K liquid crystal panel after relevant treatment, thus normally lighting the 4K2K of this type
Liquid crystal panel.
In summary, in the prior art, for different types of 4K2K liquid crystal panel, the specifications parameter being needed due to it
Difference be accomplished by different television set chips normally to light, therefore in the test process to liquid crystal panel very side
Just, change a kind of liquid crystal panel to be accomplished by being equipped with the TV chip of corresponding types for this liquid crystal panel, that is, TV chip does not possess
Light the versatility of all types of 4K2K liquid crystal panels, affect testing efficiency.
Content of the invention
Embodiments of the invention provide a kind of signal output apparatus and device, light different types of liquid crystal surface for output
The data message of plate, thus realize versatility.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that：
The embodiment of the present invention provides a kind of signal output apparatus, is used for lighting liquid crystal panel, including：Main control chip, outside
Data storage, first switch, at least one first resistor and power supply；Each input of described first switch all with described electricity
Source connects, and each outfan is connected with one end of a described first resistor and described main control chip respectively；Described first resistor
The other end ground connection；Described main control chip is also connected with described external data memory；Wherein, each of described first switch is defeated
Enter end and correspond to an outfan respectively；Described main control chip, for obtaining the combinations of states information that described first switch produces, and
According to the combinations of states information of described first switch, search in described external data memory prestore with described first
The specifications parameter of the described liquid crystal panel of combinations of states information matches of switch；Described main control chip, is additionally operable in described outside
The 4K2K pictorial information prestoring is called in data storage, and the specifications parameter according to described liquid crystal panel, to described
4K2K pictorial information is processed and exported to be shown to described liquid crystal panel.
The embodiment of the present invention provides a kind of signal output apparatus, including the signal output apparatus described in above-described embodiment.
The embodiment of the present invention provides a kind of signal output apparatus and device, and wherein, signal output apparatus include：Master control core
Piece, external data memory, first switch, at least one first resistor and power supply；Main control chip obtains first switch first and produces
Raw combinations of states information, and the combinations of states information according to the first switch obtaining, search in external data memory with
The specifications parameter of the liquid crystal panel of combinations of states information matches of first switch, and obtain in external data memory and deposit in advance
The 4K2K pictorial information of storage, and the specifications parameter of the liquid crystal panel according to the combinations of states information matches with first switch searched
4K2K pictorial information is processed and exported and is shown to liquid crystal panel, thus lighting liquid crystal panel.So, due to outside
It is previously stored with the combinations of states information of first switch and the corresponding relation of the specifications parameter of liquid crystal panel in portion's data storage,
Then when user needs a certain liquid crystal panel is lighted, the specifications parameter for this liquid crystal panel is grasped to first switch
Make so that main control chip obtains the combinations of states information of first switch, and according to the corresponding relation that prestores determine with
The type of the corresponding liquid crystal panel of combinations of states information of first switch, after final output process corresponding with this liquid crystal panel
4K2K pictorial information, thus normally lighting this liquid crystal panel, so the signal output apparatus of the present invention can export lights difference
The data message of the liquid crystal panel of type, it is achieved thereby that versatility.
Brief description
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be in embodiment or description of the prior art
The accompanying drawing of required use be briefly described it should be apparent that, drawings in the following description be only the present invention some are real
Apply example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is a kind of schematic diagram of signal output apparatus provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of another kind signal output apparatus provided in an embodiment of the present invention；
Fig. 3 is the schematic diagram of another kind signal output apparatus provided in an embodiment of the present invention；
Fig. 4 is the schematic diagram of another kind signal output apparatus provided in an embodiment of the present invention；
Fig. 5 is the schematic diagram of another kind signal output apparatus provided in an embodiment of the present invention；
Fig. 6 is a kind of instance graph of signal output apparatus provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
The embodiment of the present invention provides a kind of signal output apparatus, is used for lighting liquid crystal panel, as shown in figure 1, including：Master control
Chip 101, external data memory 102, first switch 103, at least one first resistor 104 and power supply 105.
Each input of described first switch 103 is all connected with described power supply 105, each outfan respectively with an institute
State one end of first resistor 104 and described main control chip 101 connects；The other end ground connection of described first resistor 104；Described master control
Chip 101 also with described external data memory 102 be connected.
Wherein, each input of described first switch 103 corresponds to an outfan respectively.
Described main control chip 101, for obtaining the combinations of states information that described first switch 103 produces, and according to described
The combinations of states information of first switch 103, what in described external data memory 102, lookup prestored opens with described first
Close the specifications parameter of 103 liquid crystal panel of combinations of states information matches.
Described main control chip 101, is additionally operable to call the 4K2K picture prestoring in described external data memory 102
Information, according to the specifications parameter of described liquid crystal panel, is processed to described 4K2K pictorial information and is exported to described liquid crystal surface
Plate is shown.
Wherein, the specifications parameter of liquid crystal panel refers to that liquid crystal panel has several groups of pixels and several subregion.4K2K pictorial information
Including red, green, blue, black, white, vertical colour bar GTG, the longitudinally pictorial information such as 256 GTGs and horizontal 256 GTGs.
Specifically, liquid crystal panel is 4K2K liquid crystal panel, refers to that the number of pixels of horizontal direction is 3840, vertical direction
Number of pixels be 2160.So-called several groups of pixels refer to for all pixels on 4K2K liquid crystal panel to be divided into several groups.So-called
Several subregions refer to, in units of least one set pixel, all groups of pixels on liquid crystal panel are divided into several areas.
Exemplary it is assumed that the specifications parameter of liquid crystal panel is two subregions of eight groups of pixels, then first group of pixel, second group
Pixel, the 3rd group of pixel and the 4th group of pixel constitute a subregion, and the pixel of corresponding horizontal direction is pixel 1, pixel 2, as
Until pixel 1920, the pixel of vertical direction is pixel 1 to element 3 ..., pixel 2, and pixel 3 ... is until pixel 2160；5th group of picture
Element, the 6th group of pixel, the 7th group of pixel and the 8th group of pixel constitute another subregion, and the pixel of corresponding horizontal direction is pixel
1921, pixel 1922, until pixel 3840, the pixel of vertical direction is pixel 1 to pixel 1923 ..., pixel 2, and pixel 3 ... is straight
To pixel 2160.That is, whole liquid crystal panel is divided into symmetrical two part, pixel is also divided into two parts,
And this two parts pixel corresponding two multi-section display on liquid crystal panel respectively.If the specifications parameter of liquid crystal panel is eight groups of pictures
Plain four subregions, then liquid crystal panel be divided into four parts, pixel is also divided into four parts, and this four partial pixel divides
Not four multi-section display corresponding on liquid crystal panel.
In addition, the combinations of states information of first switch 103 refers to first switch 103 in closure or disconnection, each output
The level signal at end is 1 or 0, if first switch 103 has an input and an outfan, closes in first switch 103
When, described power supply 105 is connected with described main control chip 101, then main control chip 101 receives high level signal, and as 1；?
When one switch 103 disconnects, described main control chip 101 is grounded by described first resistor 104, then described main control chip 101 receives
To low level signal, as 0；So the combinations of states information of described first switch 103 is 1 and 0 two kind；If first switch 103
There are two inputs and two outfans, the combinations of states information of first switch 103 is 00,01,10,11 four kind；If first opens
Closing 103 has four inputs and four outfans, then the combinations of states information of first switch 103 is 0000,0001,0010,
0011,0100,0101,0110,0111,1000,1001,1010,1011,1100,1101,1110,1,111 ten six kind.
Exemplary it is assumed that first switch 103 includes four inputs and four outfans, the specifications parameter of liquid crystal panel
It is respectively one subregion 8lane1 of eight groups of pixels, two subregion 8lane2 of eight groups of pixels, four subregion 8lane4 of eight groups of pixels, ten
One subregion 16lane1 of six groups of pixels, two subregion 16lane2 of 16 groups of pixels, four subregion 16lane4 of 16 groups of pixels,
Then the corresponding relation of the combinations of states information of first switch 103 and the specifications parameter of liquid crystal panel can be as shown in table 1 right
Should be related to.
Table 1
| The combinations of states information of first switch 103 | The specifications parameter of liquid crystal panel |
| 0100 | 8lane1 |
| 0010 | 8lane2 |
| 0110 | 8lane4 |
| 0001 | 16lane1 |
| 0101 | 16lane2 |
| 0011 | 16lane4 |
It should be noted that the corresponding relation of the specifications parameter of the combinations of states information of first switch 103 and liquid crystal panel
It is stored in advance in external data memory 102.
It should be noted that the difference of the number of the input being included according to first switch 103 and outfan, in external number
Corresponding relation according to the combinations of states information of the first switch 103 of storage in memorizer 102 and the specifications parameter of liquid crystal panel
Different.
Specifically, user determines the specifications parameter of the liquid crystal panel that needs are lighted first, then searches and this liquid crystal panel
The combinations of states information of the corresponding first switch of specifications parameter 103, thus the combinations of states information pair according to this first switch 103
First switch 103 is operated, so that master control chip 101 gets the combinations of states information of this first switch 103, and outside
The combinations of states information of the first switch 103 prestoring in portion's data storage 102 is right with the specifications parameter of liquid crystal panel
In should being related to, search the specifications parameter with the liquid crystal panel of combinations of states information matches of this first switch 103, then call
Red, green, blue, black, white, vertical colour bar GTG, the longitudinally pictorial information such as 256 GTGs and horizontal 256 GTGs, and first open according to this
Close 103 the liquid crystal panel of combinations of states information matches specifications parameter respectively by red, green, blue, black, white, vertical colour bar GTG, vertical
Processed to the pictorial information such as 256 GTGs and horizontal 256 GTGs, that is, according to coupling liquid crystal panel specifications parameter by red,
Green, blue, black, white, vertical colour bar GTG, the longitudinally pictorial information such as 256 GTGs and horizontal 256 GTGs be processed as respectively several groups of pixels and
The pictorial information of several subregions, finally gives and red, green, blue, black, white, vertical colour bar GTG, longitudinally 256 GTGs and horizontal 256 ashes
The pictorial informations such as rank corresponding combination of pixels data message respectively, and all pixels obtaining data splitting information output is extremely needed
In liquid crystal panel to be lighted, thus this liquid crystal panel is lighted, so that user can be carried out to the liquid crystal panel lighted
Burn-in test.
It should be noted that the combination of pixels data message of output is corresponding with the specifications parameter of liquid crystal panel, if liquid crystal
The specifications parameter of panel is eight groups of pixels, then the combination of pixels data message exporting is the combination of pixels data letter of eight groups of pixels
Breath；If the specifications parameter of liquid crystal panel is 16 groups of pixels, the combination of pixels data message exporting is the picture of 16 groups of pixels
Plain data splitting information.
It should be noted that in the present invention to the selection gist of first switch 103 being：Specifications parameter according to liquid crystal panel
Species select, for example, when the specifications parameter of liquid crystal panel only has one or two, then select there is an input and one
The first switch of individual input；When the specifications parameter of liquid crystal panel has 6 kinds, then need at least to select that there are three inputs
End and the first switch of three outfans.
It should be noted that on the circuit that power supply 105 is connected with first switch 103, a resistance of can also connecting, use
When the voltage providing in power supply 105 is higher than normal working voltage, this resistance shares a part of voltage, thus protecting main control chip
101 safety.
It should be noted that being that three inputs and three outfans are included with first switch 103 in Fig. 1, and the first electricity
Resistance 104 illustrates as a example being also three.
The embodiment of the present invention provides a kind of signal output apparatus, including：Main control chip, external data memory, first opens
Pass, at least one first resistor and power supply；Main control chip obtains the combinations of states information of first switch generation first, and according to obtaining
The combinations of states information of the first switch taking, searches the combinations of states information matches with first switch in external data memory
Liquid crystal panel specifications parameter, and obtain the 4K2K pictorial information prestoring in external data memory, and according to looking into
The specifications parameter of the liquid crystal panel of combinations of states information matches that look for and first switch carries out processing simultaneously to 4K2K pictorial information
Export and shown to liquid crystal panel, thus lighting liquid crystal panel.So, due to being previously stored with external data memory
The corresponding relation of the specifications parameter of the combinations of states information of first switch and liquid crystal panel, then when user needs to a certain liquid crystal surface
When plate is lighted, the specifications parameter for this liquid crystal panel operates to first switch, so that main control chip obtains
The combinations of states information of first switch, and the combinations of states information pair with first switch is determined according to the corresponding relation prestoring
The type of the liquid crystal panel answered, the 4K2K pictorial information after final output process corresponding with this liquid crystal panel, thus light this
Liquid crystal panel, so the signal output apparatus of the present invention can export the data message lighting different types of liquid crystal panel, from
And achieve versatility.
Further, as shown in Fig. 2 described signal output apparatus also include：At least one DDR (Double Data
Rate, Double Data Rate synchronous DRAM) 106.
At least one DDR 106 described is connected with described main control chip 101.
At least one DDR 106 described, is processed to described 4K2K pictorial information for storing described main control chip 101
When the data that produces.
Further, as shown in figure 3, described signal output apparatus also include：Second switch 107 and second resistance 108.
The input of described second switch 107 is connected with described power supply 105, and the outfan of described second switch 107 is respectively
It is connected with one end of described second resistance 108 and described main control chip 101；The other end ground connection of described second resistance 108.
Described second switch 107, for dispaly state on liquid crystal panel for the control data information, if operator need
When data message is shown, second switch 107 is closed by operator, then the output with second switch 107 on main control chip 101
The pin that end connects is connected with power supply 105, so main control chip 101 accesses high level signal, thus control data information is carried out
Display；If operator need for data message to stop display, second switch 107 is disconnected by operator, then main control chip
The pin being connected with the outfan of second switch 107 on 101 is grounded by second resistance 108, thus main control chip 101 access low
Level signal, thus control data information stops display.
Second resistance 108 is pull down resistor, for when second switch disconnects, by main control chip 101 with second switch
The level of the pin that 107 the second end connects drags down, as low level signal.
It should be noted that on the circuit that power supply 105 is connected with second switch 107, a resistance of can also connecting, use
When the voltage providing in power supply 105 is higher than normal working voltage, this resistance shares a part of voltage, thus protecting main control chip
101 safety.
Further, as shown in figure 4, described signal output apparatus also include：First socket 109 and the second socket 110.
Described first socket 109 is all connected with described main control chip 101 with described second socket 110.
Described first socket 109 and described second socket 110, are used to described main control chip 101 and described liquid crystal surface
Plate is attached.
It should be noted that the first socket 109 is corresponding with two sockets on liquid crystal panel with the second socket 110
It is generally the case that be eight groups of pixels for specifications parameter liquid crystal panel, the only socket of 51 pins, for receiving 8 groups
Pixel corresponding combination of pixels data message；And the liquid crystal panel being 16 groups of pixels for specifications parameter, there are 51 pins
Socket, for receiving the corresponding combination of pixels data message of 8 groups of pixels therein, the also socket of 1 41 pin, for receiving separately
The outer corresponding combination of pixels data message of 8 groups of pixels.And the socket of the socket of 51 pins on liquid crystal panel and 41 pins all has HTP
Pin and LOCK pin, main control chip 101 also has corresponding HTP pin and LOCK pin.
Specifically, main control chip 101 determine liquid crystal panel specifications parameter be eight groups of pixels when, in main control chip 101
Portion's circuit allows to send detection signal by connected second socket 110 to liquid crystal panel, liquid crystal panel inserting in 51 pins
When receiving detection signal on seat, the HTP pin on the socket of 51 pins and LOCK pin are dragged down, that is, on the socket of 51 pins
The level signal of HTP pin and LOCK pin is low level signal, and sets up liquid crystal panel and master control by the socket of 51 pins
Handshake Protocol between chip 101, so that combination of pixels data message corresponding with eight groups of pixels is passed through by master control chip 101
Second socket 110 exports to liquid crystal panel.And main control chip 101 internal circuit does not allow by connected first socket
109 send detection signal, so that liquid crystal panel obtains less than detection signal on the socket of 41 pins, then liquid to liquid crystal panel
HTP pin on the socket of 51 pins and LOCK pin are drawn high by crystal panel, i.e. HTP pin on the socket of 51 pins and LOCK pin
Level signal be high level signal, now, do not set up the Handshake Protocol between liquid crystal panel and main control chip 101, thus
Combination of pixels data message corresponding with eight groups of pixels also will not be exported to liquid crystal by main control chip 101 by the first socket 109
Panel.
Determine liquid crystal panel specifications parameter be 16 groups of pixels when, main control chip 101 internal circuit allow by with
Its connect the first socket 109 and the second socket 110 to liquid crystal panel send detection signal, liquid crystal panel receive first insert
During detection signal on socket 110 for the seat 109 and second, respectively the HTP pin on the socket of 51 pins and LOCK pin are dragged down, will
HTP pin on the socket of 41 pins and LOCK pin also drag down, i.e. the level of the HTP pin on the socket of 51 pins and LOCK pin
Signal is low level signal, and the HTP pin on the socket of 41 pins and the level signal of LOCK pin are also low level signal,
And respectively the Handshake Protocol between liquid crystal panel and main control chip 101 is set up by the socket of 41 pins and the socket of 51 pins, so that
Master control chip 101 will be exported to liquid crystal by the first socket 109 with wherein eight groups of pixel corresponding combination of pixels data messages
Panel, combination of pixels data message corresponding with other 8 groups of pixels is exported to liquid crystal panel by the second socket 110.
It should be noted that when the specifications parameter determining liquid crystal panel in main control chip 101 is eight groups of pixels, can also lead to
Cross the signal detection that internal circuit terminates to the HTP pin being connected with the second socket 110, and open to the first socket 109
The signal detection of the HTP pin connecting, specifically selecting, the present invention does not do the circuit according within main control chip 101 to this
Limit.
It should be noted that main control chip 101 and liquid crystal panel can also be directly connected to by holding wire, and do not pass through
First socket 109 is connected with the second socket 110, and the present invention is without limitation.
Preferably, described first switch 103 includes：Toggle switch.Described main control chip 101 includes：The master of NT 72324
Control chip.The supply voltage of described power supply 105 is 3.3V.
Specifically, toggle switch can be the toggle switch with least one slide block, and the number of slide block is opened with dial-up
The input closing and the number of outfan are equal, for controlling the state of the outfan of toggle switch, will a certain slide block to even
Connect power supply 105 one end slide when, be equivalent to the outfan being connected with this slide block and be connected with power supply 105, be connected with this slide block
Outfan output level signal be high level signal 1；By this slide block to the other end stir when, be equivalent to and be connected with this slide block
Outfan be connected to ground, the level signal of the outfan that is connected with this slide block output is low level signal 0.Due to this kind of group
After stirring, operator are easy to recognize the position that in toggle switch, each slide block is located code switch, and then are also known that
The state of each outfan in toggle switch.And button is pressed in operator and button is upspring by common key switch
When it is not easy to tell button state now, so toggle switch be preferred first switch 103.
And in the case that main control chip 101 includes the main control chip of NT 72324, described circuit includes 4 DDR 106.
Specifically, the data needs being produced when processing to 4K2K pictorial information due to the main control chip of NT 72324
Store respectively to 4 DDR 106, accordingly, it would be desirable to select 4 DDR106.
Preferably, described external data memory 102 includes flash memory.
Specifically, because flash memory has in the case of power down, storage all data in a flash memory before can preserving.
And other external data memories do not possess this function, so flash memory is preferred external data memory.
Further, as shown in figure 5, described signal output apparatus also include：Debugging interface 111.
Described debugging interface 111 is connected with described main control chip 101.
Described debugging interface 111, for when updating the information in described external data memory 102, by fresh information
By described debugging interface 111 and described main control chip 101, store to described external data memory 102.
Specifically, debugging interface 111 is reserved interface, when increasing for the species of the specifications parameter when liquid crystal panel,
Need to being stored in advance in the corresponding liquid crystal panel of combinations of states information with first switch 103 in external data memory 102
Specifications parameter be updated, at this time, it may be necessary to by debugging interface 111 by need update data write by main control chip 101
Enter in external data memory 102.
In addition, the signal output apparatus that the present invention provides also include different voltage conversion chip and connected periphery
Circuit, for the voltage being other amplitudes by the voltage conversion of the outside power supply providing.
And generally adopt the external power source of 12V (volt) to power to signal output apparatus, and what signal output apparatus included
Each operational module of main control chip 101 needs the voltage of normal work all different, and that is, the startup voltage of main control chip 101 is
1.15V；Running voltage when main control chip 101 is communicated with DDR is 1.5V；Main control chip 101 and liquid crystal panel are led to
Running voltage during letter is 1.8V and 2.5V；The running voltage that main control chip 101 is communicated with first switch 103 is 3.3V,
So needing the 12V voltage providing external power source to be respectively converted into 1.15V, 1.5V by different voltage conversion chip,
2.5V and 5V, then 5V voltage is respectively converted into 1.8V and 3.3V by different voltage conversion chip.
For example, it is possible to passing through voltage conversion chip PS 54528 by the voltage conversion of 12V is the voltage of 5V；Turned by voltage
Changing chip TPS 54821 by the voltage conversion of 12V is the voltage of 1.15V；By voltage conversion chip TPS 54528 by 12V's
Voltage conversion is the voltage of 1.5V；By voltage conversion chip AIC 2862-5GR8TB by the voltage conversion of 12V be 2.5V electricity
Pressure；The voltage of 5V can be respectively converted into by 3.3V by voltage conversion chip TLV 70233DBVR and different peripheral circuits
Voltage and 1.8V voltage.
It should be noted that the connected mode of specific voltage conversion chip and peripheral circuit is prior art, this
Bright will not be described here.
As shown in fig. 6, it is a kind of instance graph of signal output apparatus provided in an embodiment of the present invention, including：Master control core
Piece NT 72324101, flash memory MX 25L 6405D 102,4 pin toggle switch 104,4 DDR 106 of 103,4 first resistors,
Second switch 107, second resistance 108,41 pin the first socket, 109,51 pin the second socket 110,6 pin debugging interface 111, the first electricity
Voltage conversion circuit a, second voltage change-over circuit b, tertiary voltage change-over circuit c, the 4th voltage conversion circuit d, the 5th voltage turns
Change circuit e and the 6th voltage conversion circuit f.
Wherein, when 4 pin toggle switch 103 slide to the left, outfan is high level 1；4 pin toggle switch 103 slide to the right
When, outfan is low level 0.
Specifically connected mode is：The input all with first voltage change-over circuit a for the power supply of 12v, second voltage is changed
The input of circuit b, the input of tertiary voltage change-over circuit c and the input of the 4th voltage conversion circuit d electricity all with 12v
Source connects, the outfan of first voltage change-over circuit a, the outfan of second voltage change-over circuit b, tertiary voltage change-over circuit c
Outfan and the 4th voltage conversion circuit d input all with corresponding power pin in main control chip NT 72324101
VCC1, VCC2, VCC3, VCC4 connect, and are respectively used to export 1.15V, 1.5V, 2.5V and 5V, the 4th voltage conversion circuit d's is defeated
Go out end to be connected with the input of the 5th voltage conversion circuit e and the input of the 6th voltage conversion circuit f respectively, the 5th voltage turns
Change the outfan of the outfan of circuit e and the 6th voltage conversion circuit f all with corresponding power supply in main control chip NT 72324101
Pin VCC5, VCC6 connect, and are respectively used to export 1.8V and 3.3V.
4 inputs of the toggle switch 103 of 4 pins are all connected with 3.3V, 4 outfans of the toggle switch 103 of 4 pins
Each outfan respectively with one end of 1 first resistor 104 and 4 input/output port GPA_0 of main control chip NT72324101,
GPA_1, GPA_2, GPA_3 connect, the other end ground connection of first resistor 104, and the input of second switch 107 is connected with 3.3V,
The outfan of second switch 107 is connected with one end of second resistance 108 and 1 GPA_4 of main control chip NT 72324101 respectively
Connect, the other end ground connection of second resistance 108, the input pin SI/SISO of flash memory MX25L 6405D 102, output pin SO/
SISO, chip-select pin CS and clock signal pin SCLK input pin SPI_ corresponding with main control chip NT72324 101 respectively
FLASH-SDI, output pin SPI_FLASH-SDO, chip-select pin SPI_FLASH-SCSN and clock signal pin SPI_
FLASH-SCK connects, and the voltage input pin VCC of flash memory MX 25L6405D 102 is connected with 3.3V, and ground pin GND is grounded,
Pin is kept to be connected with 3.3V by resistance R, 4 all corresponding with main control chip NT 72324101 pins of DDR connect, 41
The HTP pin of pin the first socket 109, LOCK pin, the HTP pin of power input pin VCC and 51 pin the second sockets 110,
LOCK pin, the power input pin VCC HTP1 pin with main control chip NT 72324101 respectively, LOCK1 pin, 1.8V electricity
Source capsule foot, HTP2 pin, LOCK2 pin and 2.5V power pin connect, and each pin of 6 pin debugging interfaces 111 is all and master control
The corresponding pin of chip NT 72324101 connects.
Specifically operation principle is：The specifications parameter assuming liquid crystal panel is 16lane1, then operator table look-up 1 determination
The combinations of states information of 4 pin toggle switch 103 corresponding with 16lane1 is 0001, then according to 0001 by 4 pin toggle switch 103
The corresponding slide block of the first pin slide to the right, the corresponding slide block of the second pin slides to the right, and the corresponding slide block of the 3rd pin slides to the right,
The corresponding slide block of 4th pin slides to the left, so that main control chip NT 72324101 is defeated with what 4 pin toggle switch 103 were connected
The signal entering delivery outlet is respectively low level 0, low level 0, low level 0 and high level 1, is combined as 0001, now, main control chip
NT 72324101 sends low level signal to chip-select pin CS of flash memory MX25L 6405D 102, so that flash memory MX25L
6405D 102 is selected, starts working, and the clock that clock signal pin CLK can trigger inside after level is detected occurs
Device produces the clock signal for data transfer, and at this moment, main control chip NT 72324101 sends the signal carrying 0001 to sudden strain of a muscle
Deposit the input pin SI/SISO of MX 25L6405D 102, flash memory MX25L 6405D 102 basis in internal memory according to this signal
The specifications parameter that liquid crystal panel corresponding with 0001 searched by table 1 is 16lane1, and obtains 4K2K pictorial information, main control chip NT
72324101 read the specification of 4K2K pictorial information and liquid crystal panel corresponding with 0001 by the output pin SO/SISO of flash memory
Parameter 16lane1, at according to the specifications parameter of liquid crystal panel corresponding with 0001 to 4K 2K pictorial information
Reason, obtains combination of pixels data message corresponding with 16 groups of pixels, and by corresponding for wherein 8 groups pixels combination of pixels data message
Exported to liquid crystal panel by the first socket 109, corresponding for other 8 groups of pixels combination of pixels data message is passed through the second socket
110 export to liquid crystal panel, thus lighting the liquid crystal panel that specifications parameter is 16lane1.
It should be noted that first voltage change-over circuit a can be by voltage conversion chip TPS 54821 and corresponding periphery
Circuit forms；Second voltage change-over circuit b can be made up of voltage conversion chip TPS 54528 and corresponding peripheral circuit；The
Three voltage conversion circuit c can be made up of voltage conversion chip AIC 2862-5GR8TB and corresponding peripheral circuit；4th voltage
Change-over circuit d can be made up of voltage conversion chip PS 54528 and corresponding peripheral circuit；5th voltage conversion circuit e and
Six voltage conversion circuit f can be made up of voltage conversion chip TLV 70233DBVR and corresponding difference peripheral circuit, specifically
Circuit is the present invention will not be described here.
The embodiment of the present invention provides a kind of signal output apparatus, including：Main control chip, external data memory, first opens
Pass, at least one first resistor and power supply；Main control chip obtains the combinations of states information of first switch generation first, and according to obtaining
The combinations of states information of the first switch taking, searches the combinations of states information matches with first switch in external data memory
Liquid crystal panel specifications parameter, and obtain the 4K 2K pictorial information prestoring in external data memory, and according to looking into
The specifications parameter of the liquid crystal panel of combinations of states information matches that look for and first switch carries out processing simultaneously to 4K 2K pictorial information
Export and shown to liquid crystal panel, thus lighting liquid crystal panel.So, due to being previously stored with external data memory
The corresponding relation of the specifications parameter of the combinations of states information of first switch and liquid crystal panel, then when user needs to a certain liquid crystal surface
When plate is lighted, the specifications parameter for this liquid crystal panel operates to first switch, so that main control chip obtains
The combinations of states information of first switch, and the combinations of states information pair with first switch is determined according to the corresponding relation prestoring
The type of the liquid crystal panel answered, the 4K 2K pictorial information after final output process corresponding with this liquid crystal panel, thus light this
Liquid crystal panel, so the signal output apparatus of the present invention can export the data message lighting different types of liquid crystal panel, from
And achieve versatility.In addition, signal output apparatus also include debugging interface, the first socket and the second socket, thus convenient lead
Control chip is connected with liquid crystal panel, and conveniently the middle data being stored in external data memory is updated.
The embodiment of the present invention provides a kind of signal output apparatus, including the signal output apparatus described in above-described embodiment.
The embodiment of the present invention provides a kind of signal output apparatus, and including signal output apparatus, this signal output apparatus includes：
Main control chip, external data memory, first switch, at least one first resistor and power supply；Main control chip obtains first first
The combinations of states information that switch produces, and the combinations of states information according to the first switch obtaining, in external data memory
Search the specifications parameter with the liquid crystal panel of combinations of states information matches of first switch, and obtain in external data memory
The 4K 2K pictorial information that prestores, and the liquid crystal panel according to the combinations of states information matches with first switch searched
Specifications parameter is processed and exported to 4K 2K pictorial information to be shown to liquid crystal panel, thus lighting liquid crystal panel.This
Sample, due to being previously stored with the combinations of states information of first switch and the specifications parameter of liquid crystal panel in external data memory
Corresponding relation, then when user needs a certain liquid crystal panel is lighted, for this liquid crystal panel specifications parameter to
One switch is operated, so that main control chip obtains the combinations of states information of first switch and right according to prestore
The type determining with the corresponding liquid crystal panel of combinations of states information of first switch, final output and this liquid crystal panel pair should be related to
4K 2K pictorial information after the process answered, thus lighting this liquid crystal panel, so the signal output apparatus of the present invention can export
Light the data message of different types of liquid crystal panel, it is achieved thereby that versatility.
It should be understood that disclosed system in several embodiments provided herein, apparatus and method are permissible
Realize by another way.For example, device embodiment described above is only schematically, for example, described unit
Divide, only a kind of division of logic function, actual can have other dividing mode when realizing, for example multiple units or assembly
Can in conjunction with or be desirably integrated into another system, or some features can be ignored, or does not execute.Another, shown or
The coupling each other discussing or direct-coupling or communication connection can be by some interfaces, the indirect coupling of device or unit
Close or communicate to connect, can be electrical, mechanical or other forms.
The described unit illustrating as separating component can be or may not be physically separate, show as unit
The part showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.The mesh to realize this embodiment scheme for some or all of unit therein can be selected according to the actual needs
's.
In addition, can be integrated in a processing unit in each functional unit in each embodiment of the present invention it is also possible to
It is that the independent physics of unit is included it is also possible to two or more units are integrated in a unit.Above-mentioned integrated list
Unit both can be to be realized in the form of hardware, it would however also be possible to employ the form that hardware adds SFU software functional unit is realized.
The above-mentioned integrated unit realized in the form of SFU software functional unit, can be stored in an embodied on computer readable and deposit
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions with so that a computer
Equipment (can be personal computer, server, or network equipment etc.) executes the portion of each embodiment methods described of the present invention
Step by step.And aforesaid storage medium includes：USB flash disk, portable hard drive, read only memory (Read-Only Memory, referred to as
ROM), random access memory (Random Access Memory, abbreviation RAM), magnetic disc or CD etc. are various can store
The medium of program code.
Finally it should be noted that：Above example only in order to technical scheme to be described, is not intended to limit；Although
With reference to the foregoing embodiments the present invention is described in detail, it will be understood by those within the art that：It still may be used
To modify to the technical scheme described in foregoing embodiments, or equivalent is carried out to wherein some technical characteristics；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (9)
1. a kind of signal output apparatus, are used for lighting liquid crystal panel it is characterised in that described circuit includes：Main control chip, outside
Data storage, first switch, at least one first resistor and power supply；
Each input of described first switch is all connected with described power supply, each outfan respectively with a described first resistor
One end and described main control chip connect；The other end ground connection of described first resistor；Described main control chip also with described external number
Connect according to memorizer；Wherein, each input of described first switch corresponds to an outfan respectively；
Described main control chip, for obtaining the combinations of states information that described first switch produces, and according to described first switch
Combinations of states information, searches the combinations of states information with described first switch prestoring in described external data memory
The specifications parameter of the described liquid crystal panel of coupling；Wherein, the specifications parameter of described liquid crystal panel is used for indicating 4K2K liquid crystal panel
On the group number that is divided into of all pixels, and in units of least one set pixel, by all groups of pixels on 4K2K liquid crystal panel
The subregion number being divided into；
Described main control chip, is additionally operable to call the 4K2K pictorial information prestoring in described external data memory, and root
According to the specifications parameter of described liquid crystal panel, described 4K2K pictorial information is processed and exported shown to described liquid crystal panel
Show；Wherein, described main control chip is used for described 4K2K pictorial information is processed, and believes particularly for by described 4K2K picture
Breath is processed as described group of number and the pictorial information of described subregion number.
2. circuit according to claim 1 is it is characterised in that described circuit also includes：At least one Double Data Rate is synchronous
Dynamic RAM DDR；
At least one DDR described is connected with described main control chip；
At least one DDR described, for storing the number producing when described main control chip is processed to described 4K2K pictorial information
According to.
3. circuit according to claim 2 is it is characterised in that described circuit includes 4 described DDR.
4. circuit according to claim 1 and 2 is it is characterised in that described circuit also includes：Second switch and the second electricity
Resistance；
The input of described second switch is connected with described power supply, the outfan of described second switch respectively with described second resistance
One end and described main control chip connect；The other end ground connection of described second resistance.
5. circuit according to claim 1 is it is characterised in that described circuit also includes：First socket and the second socket；
Described first socket is all connected with described main control chip with described second socket；
Described first socket and described second socket, are used to be attached described main control chip with described liquid crystal panel.
6. circuit according to claim 1 is it is characterised in that described first switch includes toggle switch.
7. circuit according to claim 1 is it is characterised in that described external data memory includes flash memory.
8. circuit according to claim 1 is it is characterised in that described circuit also includes：Debugging interface；
Described debugging interface is connected with described main control chip；
Described debugging interface, for when updating the information in described external data memory, fresh information being passed through described tune
Try mouth and described main control chip, store to described external data memory.
9. a kind of signal output apparatus are it is characterised in that include the signal output apparatus described in any one of claim 1-8.
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| CN201410715695.1A CN104469346B (en) | 2014-11-28 | 2014-11-28 | Signal output circuit and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410715695.1A CN104469346B (en) | 2014-11-28 | 2014-11-28 | Signal output circuit and device |
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| CN104469346A CN104469346A (en) | 2015-03-25 |
| CN104469346B true CN104469346B (en) | 2017-02-22 |
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| CN1719309A (en) * | 2004-07-06 | 2006-01-11 | 联合聚晶股份有限公司 | Displaying and testing device of liquid crystal display |
| KR100671698B1 (en) * | 2004-08-05 | 2007-01-18 | 매그나칩 반도체 유한회사 | A Test Circuit for Digital-to-Analog Converter in LCD Driver IC |
| CN101089678A (en) * | 2006-06-16 | 2007-12-19 | 群康科技(深圳)有限公司 | Detection device for flat display picture and detection method thereof |
| CN103236242A (en) * | 2013-04-23 | 2013-08-07 | 青岛海信电器股份有限公司 | Signal generating device for display panel testing |
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Address after: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee after: Hisense Video Technology Co.,Ltd. Address before: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee before: HISENSE ELECTRIC Co.,Ltd. |