CN104469346A - Signal output circuit and device - Google Patents
Signal output circuit and device Download PDFInfo
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- CN104469346A CN104469346A CN201410715695.1A CN201410715695A CN104469346A CN 104469346 A CN104469346 A CN 104469346A CN 201410715695 A CN201410715695 A CN 201410715695A CN 104469346 A CN104469346 A CN 104469346A
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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, particularly relate to a kind of signal output apparatus and device.
Background technology
4K2K is a kind of abbreviation of high definition display resolution, reaches the physical resolution of 3840 × 2160, makes the total pixel number amount of display device reach more than 8,000,000.Therefore, 4K2K liquid crystal panel is used to become trend in current large-scale liquid crystal module.And liquid crystal module aborning, in order to improve the reliability of liquid crystal module, ageing management is absolutely necessary link.And in order to realize ageing management, first need to light 4K2K liquid crystal panel, then ageing management is carried out to the 4K2K liquid crystal panel lighted.
In the prior art, the type of 4K2K liquid crystal panel can divide according to the specifications parameter of 4K2K liquid crystal panel (such as several groups of several subregions of pixel), and 4K2K liquid crystal panel carries out associative operation to light by the television set chip mated with it usually.But television set chip only stores specifications parameter corresponding to the liquid crystal panel of a certain type usually, that is TV master chip can only mate the 4K2K liquid crystal panel of a type, and show on this 4K2K liquid crystal panel after relevant treatment being carried out to the picture read according to the specifications parameter of the 4K2K liquid crystal panel mated with it, thus normally light the 4K2K liquid crystal panel of this type.
In summary, in the prior art, for dissimilar 4K2K liquid crystal panel, because the difference of its specifications parameter needed normally is lighted with regard to needing different television set chips, therefore very inconvenient in the test process of liquid crystal panel, change a kind of liquid crystal panel just to need for this liquid crystal panel is equipped with the TV chip of corresponding types, namely TV chip does not possess the versatility lighting all types of 4K2K liquid crystal panels, affects testing efficiency.
Summary of the invention
Embodiments of the invention provide a kind of signal output apparatus and device, for exporting the data message lighting dissimilar liquid crystal panel, thus realize versatility.
For achieving the above object, embodiments of the invention adopt following technical scheme:
The embodiment of the present invention provides a kind of signal output apparatus, for lighting liquid crystal panel, comprising: main control chip, external data memory, the first switch, at least one the first resistance and power supply; Each input of described first switch is all connected with described power supply, and each output respectively one end of first resistance described with one and described main control chip is connected; The other end ground connection of described first resistance; Described main control chip is also connected with described external data memory; Wherein, each input of described first switch corresponding output 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 that prestore with specifications parameter that the is described liquid crystal panel of the combinations of states information matches of described first switch in described external data memory; Described main control chip, also for calling the 4K2K pictorial information prestored in described external data memory, and according to the specifications parameter of described liquid crystal panel, processing described 4K2K pictorial information and exporting described liquid crystal panel to and show.
The embodiment of the present invention provides a kind of signal output apparatus, comprises 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 comprises: main control chip, external data memory, the first switch, at least one the first resistance and power supply; First main control chip obtains the combinations of states information that the first switch produces, and according to the combinations of states information of the first switch obtained, the specifications parameter with the liquid crystal panel of the combinations of states information matches of the first switch is searched in external data memory, and in external data memory, obtain the 4K2K pictorial information prestored, and show according to search process with the specifications parameter of the liquid crystal panel of the combinations of states information matches of the first switch 4K2K pictorial information and export liquid crystal panel to, thus light liquid crystal panel.Like this, due to the corresponding relation of the specifications parameter of the combinations of states information and liquid crystal panel that are previously stored with the first switch in external data memory, then when user needs to light a certain liquid crystal panel, specifications parameter for this liquid crystal panel operates the first switch, thus make master control chip obtain the combinations of states information of the first switch, and the type of the liquid crystal panel corresponding with the combinations of states information of the first switch is determined according to the corresponding relation prestored, 4K2K pictorial information after the final output process that liquid crystal panel is corresponding therewith, thus normally light this liquid crystal panel, so signal output apparatus of the present invention can export the data message lighting dissimilar liquid crystal panel, thus achieve versatility.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The schematic diagram of a kind of signal output apparatus that Fig. 1 provides for the embodiment of the present invention;
The schematic diagram of the another kind of signal output apparatus that Fig. 2 provides for the embodiment of the present invention;
The schematic diagram of the another kind of signal output apparatus that Fig. 3 provides for the embodiment of the present invention;
The schematic diagram of the another kind of signal output apparatus that Fig. 4 provides for the embodiment of the present invention;
The schematic diagram of the another kind of signal output apparatus that Fig. 5 provides for the embodiment of the present invention;
The instance graph of a kind of signal output apparatus that Fig. 6 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of signal output apparatus, for lighting liquid crystal panel, as shown in Figure 1, comprising: main control chip 101, external data memory 102, the first switch 103, at least one the first resistance 104 and power supply 105.
Each input of described first switch 103 is all connected with described power supply 105, and each output respectively one end of first resistance 104 described with one and described main control chip 101 is connected; The other end ground connection of described first resistance 104; Described main control chip 101 also with described external data memory 102 be connected.
Wherein, each input of described first switch 103 corresponding output respectively.
Described main control chip 101, for obtaining the combinations of states information that described first switch 103 produces, and according to the combinations of states information of described first switch 103, search that prestore with specifications parameter that the is liquid crystal panel of the combinations of states information matches of described first switch 103 in described external data memory 102.
Described main control chip 101, also for calling the 4K2K pictorial information prestored in described external data memory 102, according to the specifications parameter of described liquid crystal panel, processing described 4K2K pictorial information and exporting described liquid crystal panel to and show.
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 comprises red, green, blue, black, white, vertical colour bar GTG, the longitudinally pictorial information such as 256 GTGs and horizontal 256 GTGs.
Concrete, liquid crystal panel is 4K2K liquid crystal panel, refers to that the number of pixels of horizontal direction is 3840, and the number of pixels of vertical direction is 2160.So-called several groups of pixels refer to and all pixels on 4K2K liquid crystal panel are divided into several groups.So-called several subregion refers in units of at least one group of pixel, and all groups of pixels on liquid crystal panel are divided into several district.
Exemplary, suppose that the specifications parameter of liquid crystal panel is eight groups of pixels, two subregions, then first group of pixel, second group of pixel, 3rd group of pixel and the 4th group of pixel form a subregion, and the pixel of corresponding horizontal direction is pixel 1, pixel 2, pixel 3, until pixel 1920, the pixel of vertical direction is pixel 1, pixel 2, pixel 3 ... until pixel 2160; 5th group of pixel, the 6th group of pixel, the 7th group of pixel and the 8th group of pixel form another subregion, and the pixel of corresponding horizontal direction is pixel 1921, pixel 1922, pixel 1923 ... until pixel 3840, the pixel of vertical direction is pixel 1, pixel 2, pixel 3 ... until pixel 2160.That is, whole liquid crystal panel has been divided into two symmetrical parts, and pixel is also divided into two parts, and two multi-section display that this two parts pixel is corresponding on liquid crystal panel respectively.If the specifications parameter of liquid crystal panel is eight groups of pixels, four subregions, then liquid crystal panel has been divided into four parts, and pixel is also divided into four parts, and four multi-section display that this four partial pixel is corresponding on liquid crystal panel respectively.
In addition, the combinations of states information of the first switch 103 refers to that the first switch 103 is when closing or disconnect, the level signal of each output is 1 or 0, if the first switch 103 has an input and an output, then when the first switch 103 closes, described power supply 105 is connected with described main control chip 101, then main control chip 101 receives high level signal, is 1; When the first switch 103 disconnects, described main control chip 101 is by described first resistance 104 ground connection, then described main control chip 101 receives low level signal, is 0; So the combinations of states information of described first switch 103 is 1 and 0 two kind; If the first switch 103 has two inputs and two outputs, the combinations of states information of the first switch 103 is 00,01,10,11 4 kinds; If the first switch 103 has four inputs and four outputs, then the combinations of states information of the first switch 103 is 0000,0001,0010,0011,0100,0101,0110,0111,1000,1001,1010,1011,1100,1101,1110,1,111 ten six kinds.
Exemplary, suppose that the first switch 103 comprises four inputs and four outputs, the specifications parameter of liquid crystal panel is respectively eight groups of pixels subregion 8lane1, eight groups of pixels, two subregion 8lane2, eight groups of pixels, four subregion 8lane4,16 groups of pixels subregion 16lane1,16 groups of pixels, two subregion 16lane2,16 groups of pixels, four subregion 16lane4, then the corresponding relation of the combinations of states information of the first switch 103 and the specifications parameter of liquid crystal panel can be corresponding relation as shown in table 1.
Table 1
| The combinations of states information of the 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 combinations of states information of the first switch 103 and the specifications parameter of liquid crystal panel is stored in advance in external data memory 102.
It should be noted that, the difference of the input comprised according to the first switch 103 and the number of output, the combinations of states information of the first switch 103 stored in external data memory 102 is also different from the corresponding relation of the specifications parameter of liquid crystal panel.
Concrete, first user determines the specifications parameter of the liquid crystal panel needing to light, search the combinations of states information of the first switch 103 corresponding to the specifications parameter of liquid crystal panel therewith again, thus according to the combinations of states information of this first switch 103, first switch 103 is operated, with the combinations of states information making master control chip 101 get this first switch 103, and in the corresponding relation of the combinations of states information of the first switch 103 prestored in external data memory 102 and the specifications parameter of liquid crystal panel, search the specifications parameter of the liquid crystal panel of the combinations of states information matches of the first switch 103 therewith, then call red, green, blue, black, in vain, vertical colour bar GTG, longitudinally 256 GTGs and the laterally pictorial information such as 256 GTGs, and according to the specifications parameter of the liquid crystal panel of the combinations of states information matches of the first switch 103 therewith respectively by red, green, blue, black, in vain, vertical colour bar GTG, longitudinally 256 GTGs and laterally the pictorial information such as 256 GTGs process, namely according to the specifications parameter of the liquid crystal panel of coupling by red, green, blue, black, in vain, vertical colour bar GTG, longitudinally the pictorial information such as 256 GTGs and horizontal 256 GTGs is treated to the pictorial information of several groups of pixels and several subregion respectively, finally obtains with red, green, blue, black, in vain, vertical colour bar GTG, the combination of pixels data message that longitudinally pictorial information such as 256 GTGs and horizontal 256 GTGs is corresponding respectively, and all combination of pixels data messages obtained are exported in the liquid crystal panel needing to light, thus lighted by this liquid crystal panel, thus make user can carry out burn-in test to the liquid crystal panel lighted.
It should be noted that, the combination of pixels data message of output is corresponding with the specifications parameter of liquid crystal panel, if the specifications parameter of liquid crystal panel is eight groups of pixels, then the combination of pixels data message exported is the combination of pixels data message of eight groups of pixels; If the specifications parameter of liquid crystal panel is 16 groups of pixels, then the combination of pixels data message exported is the combination of pixels data message of 16 groups of pixels.
It should be noted that, in the present invention to the selection gist of the first switch 103 be: the kind according to the specifications parameter of liquid crystal panel is selected, such as, when the specifications parameter of liquid crystal panel only has one or both, then select first switch with an input and an input; When the specifications parameter of liquid crystal panel has 6 kinds, then need the first switch at least selecting there are three inputs and three outputs.
It should be noted that, on the circuit that power supply 105 is connected with the first switch 103, a resistance of can also connecting, during for the voltage that provides at power supply 105 higher than normal working voltage, this resistance shares a part of voltage, thus the safety of protection main control chip 101.
It should be noted that, be comprise three inputs and three outputs with the first switch 103 in Fig. 1, and the first resistance 104 is also three is described for example.
The embodiment of the present invention provides a kind of signal output apparatus, comprising: main control chip, external data memory, the first switch, at least one the first resistance and power supply; First main control chip obtains the combinations of states information that the first switch produces, and according to the combinations of states information of the first switch obtained, the specifications parameter with the liquid crystal panel of the combinations of states information matches of the first switch is searched in external data memory, and in external data memory, obtain the 4K2K pictorial information prestored, and show according to search process with the specifications parameter of the liquid crystal panel of the combinations of states information matches of the first switch 4K2K pictorial information and export liquid crystal panel to, thus light liquid crystal panel.Like this, due to the corresponding relation of the specifications parameter of the combinations of states information and liquid crystal panel that are previously stored with the first switch in external data memory, then when user needs to light a certain liquid crystal panel, specifications parameter for this liquid crystal panel operates the first switch, thus make master control chip obtain the combinations of states information of the first switch, and the type of the liquid crystal panel corresponding with the combinations of states information of the first switch is determined according to the corresponding relation prestored, 4K2K pictorial information after the final output process that liquid crystal panel is corresponding therewith, thus light this liquid crystal panel, so signal output apparatus of the present invention can export the data message lighting dissimilar liquid crystal panel, thus achieve versatility.
Further, as shown in Figure 2, described signal output apparatus also comprises: 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, for storing the data produced when described main control chip 101 processes described 4K2K pictorial information.
Further, as shown in Figure 3, described signal output apparatus also comprises: second switch 107 and the second resistance 108.
The input of described second switch 107 is connected with described power supply 105, and the output of described second switch 107 is connected with one end of described second resistance 108 and described main control chip 101 respectively; The other end ground connection of described second resistance 108.
Described second switch 107, for the show state of control data information on liquid crystal panel, if when operating personnel need data message to show, second switch 107 closes by operating personnel, the pin then main control chip 101 is connected with the output of second switch 107 is connected with power supply 105, so main control chip 101 accesses high level signal, thus control data information shows; If when operating personnel need data message to be stopped display, second switch 107 disconnects by operating personnel, the pin then main control chip 101 is connected with the output of second switch 107 is by the second resistance 108 ground connection, so main control chip 101 accesses low level signal, thus control data information stops display.
Second resistance 108 is pull down resistor, for when second switch disconnects, is dragged down by the level of the pin that main control chip 101 is connected with the second end of second switch 107, is 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, during for the voltage that provides at power supply 105 higher than normal working voltage, this resistance shares a part of voltage, thus the safety of protection main control chip 101.
Further, as shown in Figure 4, described signal output apparatus also comprises: the 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, all for being connected with described liquid crystal panel by described main control chip 101.
It should be noted that, first socket 109 and the second socket 110 are corresponding with the socket of two on liquid crystal panel, under normal circumstances, are the liquid crystal panel of eight groups of pixels for specifications parameter, only there is the socket of 51 pins, for receiving combination of pixels data message corresponding to 8 groups of pixels; And be the liquid crystal panel of 16 groups of pixels for specifications parameter, there is the socket of 51 pins, for receiving combination of pixels data message corresponding to 8 groups of pixels wherein, also has the socket of 1 41 pin, for receiving combination of pixels data message corresponding to 8 groups of other pixels.And the socket of 51 pins on liquid crystal panel and the socket of 41 pins all have HTP pin and LOCK pin, main control chip 101 also has corresponding HTP pin and LOCK pin.
Concrete, main control chip 101 is when the specifications parameter determining liquid crystal panel is eight groups of pixels, main control chip 101 internal circuit allows to send detection signal by connected second socket 110 to liquid crystal panel, when liquid crystal panel receives detection signal on the socket of 51 pins, HTP pin on the socket of 51 pins and LOCK pin are dragged down, HTP pin on the socket of i.e. 51 pins and the level signal of LOCK pin are low level signal, and set up the Handshake Protocol between liquid crystal panel and main control chip 101 by the socket of 51 pins, the combination of pixels data message corresponding with eight groups of pixels is exported to liquid crystal panel by the second socket 110 to make master control chip 101.And main control chip 101 internal circuit does not allow to send detection signal by connected first socket 109 to liquid crystal panel, thus liquid crystal panel is obtained less than detection signal on the socket of 41 pins, then the HTP pin on the socket of 51 pins and LOCK pin are drawn high by liquid crystal panel, HTP pin on the socket of i.e. 51 pins and the level signal of LOCK pin are high level signal, now, do not set up the Handshake Protocol between liquid crystal panel and main control chip 101, thus main control chip 101 also can not export the combination of pixels data message corresponding with eight groups of pixels to liquid crystal panel by the first socket 109.
When the specifications parameter determining liquid crystal panel is 16 groups of pixels, main control chip 101 internal circuit allows to send detection signal by connected first socket 109 and the second socket 110 to liquid crystal panel, liquid crystal panel is when receiving the detection signal on the first socket 109 and the second socket 110, respectively the HTP pin on the socket of 51 pins and LOCK pin are dragged down, HTP pin on the socket of 41 pins and LOCK pin are also dragged down, HTP pin on the socket of i.e. 51 pins and the level signal of LOCK pin are low level signal, HTP pin on the socket of 41 pins and the level signal of LOCK pin are also low level signal, and set up the Handshake Protocol between liquid crystal panel and main control chip 101 respectively by the socket of 41 pins and the socket of 51 pins, the combination of pixels data message corresponding with wherein eight groups of pixels is exported to liquid crystal panel by the first socket 109 to make master control chip 101, the combination of pixels data message corresponding with other 8 groups of pixels exports liquid crystal panel to by the second socket 110.
It should be noted that, when the specifications parameter that main control chip 101 determines liquid crystal panel is eight groups of pixels, can also by the input of the inner circuit termination pair HTP pin be connected with the second socket 110, and the input opened the HTP pin be connected with the first socket 109, concrete selects according to the circuit of main control chip 101 inside, and the present invention does not limit this.
It should be noted that, directly can also be connected with liquid crystal panel by main control chip 101 by holding wire, and be connected with the second socket 110 by the first socket 109, the present invention does not limit this.
Preferably, described first switch 103 comprises: toggle switch.Described main control chip 101 comprises: the main control chip of NT 72324.The supply power voltage of described power supply 105 is 3.3V.
Concrete, toggle switch can for having the toggle switch of at least one slide block, and the number of slide block is equal with the number of output with the input of toggle switch, for controlling the state of the output of toggle switch, when sliding to the one end connecting power supply 105 by a certain slide block, be equivalent to the output that slide block connects therewith be connected with power supply 105, the level signal that the output that namely slide block connects therewith exports is high level signal 1; When being stirred to the other end by this slide block, be equivalent to the output that slide block connects therewith and be connected to ground, the level signal that the output that namely slide block connects therewith exports is low level signal 0.Because this kind of toggle switch is after stirring, operating personnel are easy to the position recognizing each slide block place in toggle switch, and then also just know the state of each output in toggle switch.And common key switch is when button is pressed and upspring by button by operating personnel, be not easy to tell button state now, so toggle switch is preferred first switch 103.
And when main control chip 101 comprises the main control chip of NT 72324, described circuit comprises 4 DDR 106.
Concrete, the data that the main control chip due to NT 72324 produces when processing 4K2K pictorial information need to be stored to respectively in 4 DDR 106, therefore, need to select 4 DDR106.
Preferably, described external data memory 102 comprises flash memory.
Concrete, because flash memory has when power down, before can preserving, store all data in a flash memory.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 comprises: debugging interface 111.
Described debugging interface 111 is connected with described main control chip 101.
Described debugging interface 111, for when upgrading the information in described external data memory 102, by lastest imformation by described debugging interface 111 and described main control chip 101, is stored in described external data memory 102.
Concrete, debugging interface 111 is reserved interface, when kind for the specifications parameter when liquid crystal panel increases, need to upgrade the specifications parameter being stored in advance in liquid crystal panel corresponding with the combinations of states information of the first switch 103 in external data memory 102, now, need by debugging interface 111, the data that needs upgrade to be write in external data memory 102 by main control chip 101.
In addition, signal output apparatus provided by the invention also comprises different voltage conversion chip and connected peripheral circuit, and the voltage transitions for the power supply provided outside is the voltage of other amplitudes.
And usually adopt the external power source of 12V (volt) to power to signal output apparatus, and the voltage that each operational module needs of the main control chip 101 that signal output apparatus comprises normally work is all different, namely the starting resistor of main control chip 101 is 1.15V; Operating voltage when main control chip 101 communicates with DDR is 1.5V; Operating voltage when main control chip 101 communicates with liquid crystal panel is 1.8V and 2.5V; The operating voltage that main control chip 101 carries out communicating with the first switch 103 is 3.3V, so need the 12V voltage provided by external power source to be converted to 1.15V respectively by different voltage conversion chip, 1.5V, 2.5V and 5V, then 5V voltage is converted to 1.8V and 3.3V respectively by different voltage conversion chip.
Such as, can be the voltage of 5V by the voltage transitions of 12V by voltage conversion chip PS 54528; Be the voltage of 1.15V by voltage conversion chip TPS 54821 by the voltage transitions of 12V; Be the voltage of 1.5V by voltage conversion chip TPS 54528 by the voltage transitions of 12V; Be the voltage of 2.5V by voltage conversion chip AIC 2862-5GR8TB by the voltage transitions of 12V; The voltage of 5V can be converted to the voltage of 3.3V and the voltage of 1.8V respectively by voltage conversion chip TLV 70233DBVR and different peripheral circuits.
It should be noted that, concrete voltage conversion chip and the connected mode of peripheral circuit are prior art, and the present invention does not repeat them here.
As shown in Figure 6, the instance graph of its a kind of signal output apparatus provided for the embodiment of the present invention, comprise: main control chip NT 72324101, flash memory MX 25L 6405D 102,4 pin toggle switch 103,4 first resistance, 104,4 DDR 106, second switch 107, second resistance 108,41 pin first socket 109,51 pin second socket 110,6 pin debugging interfaces 111, first voltage conversion circuit a, the second voltage conversion circuit b, tertiary voltage change-over circuit c, 4th voltage conversion circuit d, the 5th voltage conversion circuit e and the 6th voltage conversion circuit f.
Wherein, when 4 pin toggle switchs 103 slide left, output is high level 1; When 4 pin toggle switchs 103 slide to the right, output is low level 0.
Concrete connected mode is: the power supply of 12v all with the input of the first voltage conversion circuit a, the input of the second voltage conversion circuit b, the input of tertiary voltage change-over circuit c and the input of the 4th voltage conversion circuit d are all connected with the power supply of 12v, the output of the first voltage conversion circuit a, the output of the second voltage conversion circuit b, the output of tertiary voltage change-over circuit c and all corresponding with the main control chip NT 72324101 power pin VCC1 of the input of the 4th voltage conversion circuit d, VCC2, VCC3, VCC4 connects, be respectively used to export 1.15V, 1.5V, 2.5V and 5V, the output of the 4th voltage conversion circuit d is connected with the input of the 5th voltage conversion circuit e and the input of the 6th voltage conversion circuit f respectively, the output of the 5th voltage conversion circuit e and all corresponding with the main control chip NT 72324101 power pin VCC5 of the output of the 6th voltage conversion circuit f, VCC6 connects, be 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, each output of 4 outputs of the toggle switch 103 of 4 pins respectively with one end of 1 the first resistance 104 and 4 input/output port GPA_0 of main control chip NT72324101, GPA_1, GPA_2, GPA_3 connects, the other end ground connection of the first resistance 104, the input of second switch 107 is connected with 3.3V, the output of second switch 107 is connected with one end of the second resistance 108 and 1 GPA_4 of main control chip NT 72324101 respectively, the other end ground connection of the second resistance 108, the input pin SI/SISO of flash memory MX25L 6405D 102, output pin SO/SISO, sheet selects the input pin SPI_FLASH-SDI that pin CS and clock signal pin SCLK is corresponding with main control chip NT72324 101 respectively, output pin SPI_FLASH-SDO, sheet selects pin SPI_FLASH-SCSN and clock signal pin SPI_FLASH-SCK to connect, voltage input pin VCC and the 3.3V of flash memory MX 25L6405D 102 connects, ground pin GND ground connection, pin is kept to be connected by resistance R and 3.3V, all corresponding with main control chip NT 72324101 pin of 4 DDR connects, the HTP pin of 41 pin first sockets 109, LOCK pin, the HTP pin of power supply input pin VCC and 51 pin second sockets 110, LOCK pin, power supply input pin VCC respectively with the HTP1 pin of main control chip NT 72324101, LOCK1 pin, 1.8V power pin, HTP2 pin, LOCK2 pin is connected with 2.5V power pin, the pin that each pin of 6 pin debugging interfaces 111 is all corresponding with main control chip NT 72324101 connects.
Concrete operation principle is: suppose that the specifications parameter of liquid crystal panel is 16lane1, then operating personnel's 1 combinations of states information determining the 4 pin toggle switchs 103 corresponding with 16lane1 of tabling look-up is 0001, then slide first of 4 pin toggle switchs 103 to the right for the slide block of answering according to 0001, second slides to the right for the slide block of answering, 3rd slides to the right for the slide block of answering, 4th slides left for the slide block of answering, thus the signal of the input/output port making master control chip NT 72324101 be connected with 4 pin toggle switchs 103 is respectively low level 0, low level 0, low level 0 and high level 1, be combined as 0001, now, main control chip NT 72324101 selects pin CS to send low level signal to the sheet of flash memory MX25L 6405D 102, thus make flash memory MX25L 6405D 102 selected, start working, and the clock generator of clock signal pin CLK meeting trigger internal after level being detected produces the clock signal for transfer of data, at this moment, the signal carrying 0001 is sent to the input pin SI/SISO of flash memory MX 25L6405D 102 by main control chip NT 72324101, the specifications parameter that flash memory MX25L 6405D 102 searches with 0001 corresponding liquid crystal panel according to table 1 according to this signal in internal memory is 16lane1, and obtain 4K2K pictorial information, main control chip NT 72324101 reads the specifications parameter 16lane1 of 4K2K pictorial information and the liquid crystal panel corresponding with 0001 by the output pin SO/SISO of flash memory, thus can process 4K 2K pictorial information according to the specifications parameter of the liquid crystal panel corresponding with 0001, obtain the combination of pixels data message corresponding with 16 groups of pixels, and export combination of pixels data message corresponding for wherein 8 groups of pixels to liquid crystal panel by the first socket 109, combination of pixels data message corresponding for other 8 groups of pixels is exported to liquid crystal panel by the second socket 110, thus light the liquid crystal panel that specifications parameter is 16lane1.
It should be noted that, the first voltage conversion circuit a can be made up of the peripheral circuit of voltage conversion chip TPS 54821 and correspondence; Second voltage conversion circuit b can be made up of the peripheral circuit of voltage conversion chip TPS 54528 and correspondence; Tertiary voltage change-over circuit c can be made up of the peripheral circuit of voltage conversion chip AIC 2862-5GR8TB and correspondence; 4th voltage conversion circuit d can be made up of the peripheral circuit of voltage conversion chip PS 54528 and correspondence; 5th voltage conversion circuit e and the 6th voltage conversion circuit f can be made up of the different peripheral circuits of voltage conversion chip TLV 70233DBVR and correspondence, and concrete circuit the present invention does not repeat them here.
The embodiment of the present invention provides a kind of signal output apparatus, comprising: main control chip, external data memory, the first switch, at least one the first resistance and power supply; First main control chip obtains the combinations of states information that the first switch produces, and according to the combinations of states information of the first switch obtained, the specifications parameter with the liquid crystal panel of the combinations of states information matches of the first switch is searched in external data memory, and in external data memory, obtain the 4K 2K pictorial information prestored, and show according to search process with the specifications parameter of the liquid crystal panel of the combinations of states information matches of the first switch 4K 2K pictorial information and export liquid crystal panel to, thus light liquid crystal panel.Like this, due to the corresponding relation of the specifications parameter of the combinations of states information and liquid crystal panel that are previously stored with the first switch in external data memory, then when user needs to light a certain liquid crystal panel, specifications parameter for this liquid crystal panel operates the first switch, thus make master control chip obtain the combinations of states information of the first switch, and the type of the liquid crystal panel corresponding with the combinations of states information of the first switch is determined according to the corresponding relation prestored, 4K 2K pictorial information after the final output process that liquid crystal panel is corresponding therewith, thus light this liquid crystal panel, so signal output apparatus of the present invention can export the data message lighting dissimilar liquid crystal panel, thus achieve versatility.In addition, signal output apparatus also comprises debugging interface, the first socket and the second socket, thus facilitates main control chip to be connected with liquid crystal panel, and conveniently upgrades being stored in data in external data memory.
The embodiment of the present invention provides a kind of signal output apparatus, comprises the signal output apparatus described in above-described embodiment.
The embodiment of the present invention provides a kind of signal output apparatus, comprises signal output apparatus, and this signal output apparatus comprises: main control chip, external data memory, the first switch, at least one the first resistance and power supply; First main control chip obtains the combinations of states information that the first switch produces, and according to the combinations of states information of the first switch obtained, the specifications parameter with the liquid crystal panel of the combinations of states information matches of the first switch is searched in external data memory, and in external data memory, obtain the 4K 2K pictorial information prestored, and show according to search process with the specifications parameter of the liquid crystal panel of the combinations of states information matches of the first switch 4K 2K pictorial information and export liquid crystal panel to, thus light liquid crystal panel.Like this, due to the corresponding relation of the specifications parameter of the combinations of states information and liquid crystal panel that are previously stored with the first switch in external data memory, then when user needs to light a certain liquid crystal panel, specifications parameter for this liquid crystal panel operates the first switch, thus make master control chip obtain the combinations of states information of the first switch, and the type of the liquid crystal panel corresponding with the combinations of states information of the first switch is determined according to the corresponding relation prestored, 4K 2K pictorial information after the final output process that liquid crystal panel is corresponding therewith, thus light this liquid crystal panel, so signal output apparatus of the present invention can export the data message lighting dissimilar liquid crystal panel, thus achieve versatility.
In several embodiments that the application provides, should be understood that, disclosed system, apparatus and method, can realize by another way.Such as, device embodiment described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of device or unit or communication connection can be electrical, machinery or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit comprises, also can two or more unit in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form that hardware also can be adopted to add SFU software functional unit realizes.
The above-mentioned integrated unit realized with the form of SFU software functional unit, can be stored in a computer read/write memory medium.Above-mentioned SFU software functional unit is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform the part steps of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (Read-Only Memory, be called for short ROM), random access memory (Random Access Memory, be called for short RAM), magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (9)
1. a signal output apparatus, for lighting liquid crystal panel, is characterized in that, described circuit comprises: main control chip, external data memory, the first switch, at least one the first resistance and power supply;
Each input of described first switch is all connected with described power supply, and each output respectively one end of first resistance described with one and described main control chip is connected; The other end ground connection of described first resistance; Described main control chip is also connected with described external data memory; Wherein, each input of described first switch corresponding output 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 that prestore with specifications parameter that the is described liquid crystal panel of the combinations of states information matches of described first switch in described external data memory;
Described main control chip, also for calling the 4K2K pictorial information prestored in described external data memory, and according to the specifications parameter of described liquid crystal panel, processing described 4K2K pictorial information and exporting described liquid crystal panel to and show.
2. circuit according to claim 1, is characterized in that, described circuit also comprises: at least one Double Data Rate synchronous DRAM DDR;
At least one DDR described is connected with described main control chip;
At least one DDR described, for storing the data produced when described main control chip processes described 4K2K pictorial information.
3. circuit according to claim 2, is characterized in that, described circuit comprises 4 described DDR.
4. circuit according to claim 1 and 2, is characterized in that, described circuit also comprises: second switch and the second resistance;
The input of described second switch is connected with described power supply, and the output of described second switch is connected with one end of described second resistance and described main control chip respectively; The other end ground connection of described second resistance.
5. circuit according to claim 1, is characterized in that, described circuit also comprises: the 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, all for being connected with described liquid crystal panel by described main control chip.
6. circuit according to claim 1, is characterized in that, described first switch comprises toggle switch.
7. circuit according to claim 1, is characterized in that, described external data memory comprises flash memory.
8. circuit according to claim 1, is characterized in that, described circuit also comprises: debugging interface;
Described debugging interface is connected with described main control chip;
Described debugging interface, for when upgrading the information in described external data memory, by lastest imformation by described debugging interface and described main control chip, is stored in described external data memory.
9. a signal output apparatus, is characterized in that, comprises the signal output apparatus described in any one of claim 1-8.
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| CN104469346B (en) | 2017-02-22 |
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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. |
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