CN1336565A - Signal processing unit with LCD panel - Google Patents
Signal processing unit with LCD panel Download PDFInfo
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- CN1336565A CN1336565A CN 00121953 CN00121953A CN1336565A CN 1336565 A CN1336565 A CN 1336565A CN 00121953 CN00121953 CN 00121953 CN 00121953 A CN00121953 A CN 00121953A CN 1336565 A CN1336565 A CN 1336565A
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Abstract
A signal processor with liquid crystal display faceplate consists of input interface and micro-processing device. The input interface receives multi image signal. The first image signal is selected from image signal on the input interface which is controlled by first control signal that is a output of the micro-processing device. The first iamge signal is converted to a digital image signal with an output format. Meanwhile an informing signal is sent out to inform the faceplate what the output format is. The faceplate controller receives digital image signal based on said output format, and produces and sends to the signal for grid drive and source drive.
Description
The present invention relates to a kind of signal processor, particularly a kind of signal processing unit with LCD panel.
As shown in Figure 1, United States Patent (USP) the 5th, 856, No. 818 patent is addressed a traditional structure of liquid crystal display panel, comprise a drawing controller 1, in order to produce control signal (Vsync, Hsync, DE, MCLK) and data-signal (DATA_EVEN, DATA_ODD), one interface device 2, then come control gate driver 3 and Source drive 4,5 up and down according to the control signal of drawing controller 1 and data-signal, display panels (LCD) 6 then mat gate driver 3 and up and down Source drive 4,5 operate.
Yet because aforementioned drawing controller 1 and interface device 2 belong to LCD module section and LCD faceplate part, both must match each other.
In addition, in the inputting interface design of signal of video signal, the general input that all only can specify a kind of signal of video signal, can not make multiple signal of video signal input simultaneously, for example the U.S. the 5th, 987, No. 543 patents, be to disclose the image input mode that a kind of tradition is used for mobile computer, it is in order to overcome the EMI problem that high speed data transfer produces, a kind of standard low pressure difference signal (LVDS:standard Low Voltage Differential Signaling) that is used for inputting interface circuit (interface circuits) and develop, and utilizing peripheral slot to receive single signal of video signal, peripheral slot (peripheral slot) then couples image input port (video port) in regular turn in the mode of serial connection, the LVDS forwarder, the LVDS receiver, and display device.In addition, another kind of similarly known manner is for adopting TMDS technology (transition minimizeddifferential signaling: minimize low pressure difference signal conversion).
The U.S. the 5th in addition, 959, No. 601 patents, exposure utilizes a display engine (display engine) to receive image data, and in order to decision it is shown in CRT monitor or LCD display, if be used for CRT monitor, then image data is delivered to digital/analog converter, image data is converted to the simulating signal of expression pixel count certificate such as red, blue, green,, then image data is delivered to the LCD engine as if being used for LCD display.
The U.S. the 6th in addition, 025, No. 817 patents, disclose a kind of signal pin configuration (allocation orsignal pins) standard, as select the D-sub connector of 15-pin, in a DDC 1,2 system, 15 pin correspondences signal (connector that is used for the output of standard VGA image) separately.
The aforementioned conventional technology discloses display device and can utilize interface circuit to receive digital image data or analog image data, does not a kind ofly integrate different interface circuits to select the method for required image data again after receiving various image datas but disclosed.
Moreover, the power management design of tradition structure of liquid crystal display panel still has improved space, the 104th page, 105 pages in up-to-date liquid crystal applications technology one book for example, be to address bias voltage to produce circuit, it only decides variant driving power with variable-resistance electric resistance partial pressure, therefore can not look the direct supply voltage of each interior arrangement institute palpus at any time and dynamically adjust, on usefulness, can't reach optimization.
In view of this, the invention reside in the solution foregoing problems, it provides a kind of signal processing unit with LCD panel (LCD panel signal processor), is applicable to that one has the display panels of gate driver and Source drive, comprise an inputting interface, receive multiple signal of video signal; One micro treatmenting device, export one first control signal and in aforementioned signal of video signal, select one first kind of signal of video signal with the control inputting interface, and to change first kind of signal of video signal be one to have the digital image signal of output format, send a notification signal simultaneously output format is notified to a panel controller, this panel controller then receives digital image signal according to this output format, and produces gate driver signal and Source drive signal to export gate driver and Source drive to.
In addition, signal processing unit with LCD panel also comprises an electric power source distribution device, in order to produce at least more than one direct supply, wherein electric power source distribution device is coupled to the pulse-width modulating signal generator of micro treatmenting device, with the magnitude of voltage by pulse width modulation signal controlling direct supply.
Below in conjunction with accompanying drawing and preferred embodiment with explanation the present invention.
Fig. 1 is traditional structure of liquid crystal display panel.
Fig. 2 is in one embodiment of the invention, the circuit block diagram of signal processing unit with LCD panel.
Fig. 3 is in one embodiment of the invention, the detailed circuit calcspar of inputting interface.
Fig. 4 is in one embodiment of the invention, the circuit block diagram of electric power source distribution device.
Fig. 5 is in one embodiment of the invention, the circuit block diagram of panel controller.
Fig. 6 is in one embodiment of the invention, the detailed circuit calcspar of electric power source distribution device.
Below utilize Fig. 2 that a kind of signal processing unit with LCD panel of the present invention is described.And the identical person of each element numbers is an element of representing identical function.
With reference to figure 2, signal processing unit with LCD panel 10 is applicable to that one has the display panels 20 of gate driver 22 and Source drive 24, and it comprises following elements.
At first with reference to figure 2 and Fig. 3, inputting interface 12 is to be integrated with a plurality of interfaces to receive multiple signal of video signal, is example at this with three kinds of signal of video signal, as analog image signal V1, can be a signal of video signal (AV:audio-visual signal) from remote controller (TV tunnel box), it can be sent to image-decoding device 122 by AV connector 121, when 122 activations of image-decoding device, can decode to signal of video signal, produce the digital image signal of output format (output format) with corresponding this signal of video signal; Digital image signal V2, can be a low pressure difference signal from the LVDS/TMDS forwarder of VGA device, this low pressure difference signal can be sent to LVDS/TMDS receiver 124 by LVDS/TMDS connector 123, when 124 activations of LVDS/TMDS receiver, can receive this low pressure difference signal, produce the digital image signal of output format (output format) with corresponding this low pressure difference signal; And another simulating signal V3, can be a D-sub connector 125 by the 15-pin, transmit the signal that is used for the output of standard VGA image of corresponding 15 pins, as pixel count such as red, blue, green according to R, G, B and horizontal synchronization and vertical synchronizing signal HSY/VSY to analog/digital converter ADC126, when analog/digital converter ADC126 activation, changing aforementioned simulating signal is the digital image signal with output format (output format) of corresponding this simulating signal.
Micro treatmenting device MCU14, be in multiple signal of video signal, to select a kind of signal of video signal with control inputting interface 12 in order to export one first control signal C1, as utilize the first control signal C1 to come activation image-decoding device 122, LVDS/TMDS receiver 124, and analog/digital converter ADC126 thrin is to make it action, for example in the occasion of activation analog/digital converter ADC126, analog image signal V3 is converted into one and has digital image signal (digitalvideo signal) OFDV of output format (output format), as comprises even data EVEN-DATA, odd data ODD-DATA, digital image signal with synchronizing signal SYNC.
Wherein, micro treatmenting device MCU14 can send the output format OF of a notification signal N1 with notice panel controller 16 corresponding this kind signal of video signal V3 simultaneously, panel controller 16 is after receiving this notification signal N1, receive this digital image signal OFDV according to output format OF, and therefore produce a gate driver signal GRS1 and Source drive signal SRS1 to gate driver 22 and Source drive 24.
In addition, with reference to Fig. 5, panel controller 16 also comprises selecting arrangement 164 and test pattern generation device 162, and wherein in carrying out the test occasion whether display panels normally show, but the mat following elements is finished.
As shown in the figure, test pattern generation device 162 comprises a test pattern memory storage 162a, and as being made of storer, it is in order to store a plurality of test pattern p; And a test pattern acquisition/conversion equipment 162b, from one of a plurality of test patterns of test pattern memory storage 162a, and to change the test pattern that is captured be gate driver signal GRS2 and Source drive signal SRS2 in order to acquisition for it.
Wherein panel controller 16 also comprises a selecting arrangement 164, micro treatmenting device MCU14 then exports one second control signal C2, to control the selection of aforementioned selecting arrangement 164, be output as gate driver signal GRS1 and the Source drive signal SRS1 that changes from the signal of video signal of inputting interface 12 as Selection Floater controller 16, or the test pattern P of self-test figure memory storage 162a the gate driver signal GRS2 and the Source drive signal SRS2 that are changed.
In addition, micro treatmenting device can pass through the test pattern of IIC (Industry Interchip communication) transmission line 166 refresh test figure memory storage 162a storage at any time in addition.
Simultaneously with reference to Fig. 2 and Fig. 4, in the signal processing unit with LCD panel of present embodiment, also have an electric power source distribution device 18, micro treatmenting device MCU14 then also has a pulse-width modulating signal generator PG 142, and it is in order to produce a pulse width modulation signal PWM.
Wherein electric power source distribution device 18, be in order to produce at least more than one direct supply DC1, DC2, DC3, wherein electric power source distribution device 18 is coupled to the pulse-width modulating signal generator 142 of micro treatmenting device 14, with the magnitude of voltage by pulse width modulation signal PWM control direct supply DC1～DC3.
In addition, this direct supply DC1～DC3 is also fed back in the micro treatmenting device 14, changes the pulse width (W) of pulse width modulation signal PWM with the magnitude of voltage of foundation direct supply.So pulse-width modulating signal generator 142 can be controlled the magnitude of voltage of direct supply DC1～DC3 with the pulse width W of pulse width modulation signal PWM.
The specific embodiment of electric power source distribution device 18 has a voltage-operated device 182 and direct supply generation device 184 as shown in Figure 4 in addition.Wherein, voltage-operated device 182 is to export at least one alternating voltage such as AC1～AC3 according to supply voltage such as 3.3/5V, wherein, voltage-operated device 182 is coupled to the pulse-width modulating signal generator 142 of micro treatmenting device 14, to be adjusted the magnitude of voltage of alternating voltage AC1～AC3 by pulse width modulation signal PWM.
Direct supply generation device 184 is conversion alternating voltage AC1～AC3 with the direct supply DC1～DC3 of the magnitude of voltage that produces corresponding alternating voltage AC1～AC3.
With reference to figure 6, the inside of its further display voltage control device 182 and direct supply generation device 184 is formed in addition.Voltage-operated device 182 has an at least one transistor 182b and an inductance 182a.The termination of inductance 182a is received supply voltage 3.3/5V, the other end is coupled to transistor 182b, in order to produce an alternating voltage AC1～AC3, wherein pulse width modulation signal PWM is that mat oxide-semiconductor control transistors 182b (base stage) switch switches the magnitude of voltage that (switching) adjusts alternating voltage AC1～AC3.184 of direct supply generation devices are made up of at least one Zener diode 184a, generally can couple direct earth capacitance Cn in addition again, alternating voltage AC1～AC3 promptly produces corresponding direct supply DC1～DC3 by Zener diode 184a, offering gate driver 22, Source drive 24, and panel controller 16 respectively, and be fed back to micro treatmenting device MCU14.
According to shown in Figure 6, the termination of inductance 182a is received supply voltage, the other end couples the collector terminal of transistor 182b, emitter terminal ground connection, the base terminal of transistor 182b then couple pulse-width modulating signal generator 142, switch with the switch by pulse width modulation signal PWM oxide-semiconductor control transistors 182b.
In addition, in the above-described embodiments, signal processing unit with LCD panel 10 can adopt integrated circuit (IC) to integrate, can adopt the integrated circuit of IC numbering SM51C48D1 to design as micro treatmenting device 14 and electric power source distribution device 18, and inputting interface 12 and panel controller 16 can adopt the integrated circuit of IC numbering Smu32X01 to design.
Though the present invention discloses as above with preferred embodiment; right its is not in order to qualification the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when can doing to change and retouching, so protection scope of the present invention should be with being as the criterion that the claim scope is defined.
Claims (12)
1. a signal processing unit with LCD panel is applicable to that one has the display panels of gate driver and Source drive, comprising:
One inputting interface receives multiple signal of video signal;
One micro treatmenting device, export one first control signal and in this multiple signal of video signal, select one first kind of signal of video signal to control this inputting interface, and to change this first kind of signal of video signal be one to have the digital image signal of output format, sends a notification signal simultaneously to notify this output format; And
One panel controller receives this notification signal to receive this digital image signal according to this output format, produces one first group of gate driver signal and Source drive signal and gives this gate driver and Source drive.
2. signal processing unit with LCD panel as claimed in claim 1, wherein this panel controller also comprises a test pattern generation device, this test pattern generation device comprises:
One test pattern memory storage is in order to store a plurality of test patterns; And
One test pattern acquisition/conversion equipment, from one of a plurality of test patterns of this test pattern memory storage, and the test pattern of changing this acquisition is second group of gate driver signal and Source drive signal in order to acquisition.
3. signal processing unit with LCD panel as claimed in claim 2, wherein this panel controller also comprises a selecting arrangement, in order to selecting this panel controller to be output as, this first group of gate driver signal and Source drive signal or this second group of gate driver signal and Source drive signal one group.
4. signal processing unit with LCD panel as claimed in claim 3, wherein this micro treatmenting device also comprises output one second control signal, to control the selection of this selecting arrangement to the output of this panel controller.
5. signal processing unit with LCD panel as claimed in claim 4, wherein the test pattern of this test pattern memory device stores is to be upgraded by this micro treatmenting device.
6. signal processing unit with LCD panel as claimed in claim 1, wherein this micro treatmenting device also comprises a pulse-width modulating signal generator, in order to produce a pulse width modulation signal.
7. signal processing unit with LCD panel as claimed in claim 6, it also comprises an electric power source distribution device, in order to produce at least more than one direct supply, wherein this electric power source distribution device is coupled to the pulse-width modulating signal generator of this micro treatmenting device, with the magnitude of voltage by this this direct supply of pulse width modulation signal controlling.
8. signal processing unit with LCD panel as claimed in claim 7, wherein this direct supply is also fed back to this micro treatmenting device, changes the pulse width of this pulse width modulation signal with the magnitude of voltage according to this direct supply.
9. signal processing unit with LCD panel as claimed in claim 8, wherein this pulse-width modulating signal generator is to control the magnitude of voltage of this direct supply with the pulse width of this pulse width modulation signal.
10. signal processing unit with LCD panel as claimed in claim 7, wherein this electric power source distribution device comprises:
One voltage-operated device, in order to export an alternating voltage according to a supply voltage, wherein, this voltage-operated device is coupled to the pulse-width modulating signal generator of this micro treatmenting device, to be adjusted the magnitude of voltage of this alternating voltage by this pulse width modulation signal; And
One direct current power supply generator is changed this alternating voltage to produce at least more than one the direct supply to magnitude of voltage that should alternating voltage.
11. signal processing unit with LCD panel as claimed in claim 10, wherein this voltage-operated device comprises at least one transistor, an and inductance, the one termination is received this supply voltage, the other end is coupled to this transistor, in order to produce an alternating voltage, wherein this pulse width modulation signal is that this transistorized switch of mat control switches the magnitude of voltage that (switching) adjusts this alternating voltage.
12. signal processing unit with LCD panel as claimed in claim 11, wherein this direct supply generation device is made up of at least one Zener diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00121953 CN1121627C (en) | 2000-07-27 | 2000-07-27 | Signal processing unit with LCD panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00121953 CN1121627C (en) | 2000-07-27 | 2000-07-27 | Signal processing unit with LCD panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1336565A true CN1336565A (en) | 2002-02-20 |
| CN1121627C CN1121627C (en) | 2003-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00121953 Expired - Lifetime CN1121627C (en) | 2000-07-27 | 2000-07-27 | Signal processing unit with LCD panel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101556771B (en) * | 2008-04-08 | 2012-11-28 | 联咏科技股份有限公司 | Microprocessor device for controller of liquid crystal display device and related method |
-
2000
- 2000-07-27 CN CN 00121953 patent/CN1121627C/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101556771B (en) * | 2008-04-08 | 2012-11-28 | 联咏科技股份有限公司 | Microprocessor device for controller of liquid crystal display device and related method |
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| Publication number | Publication date |
|---|---|
| CN1121627C (en) | 2003-09-17 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: MAODE TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: TAIWAN MAOXI ELECTRONICS CO., LTD. Effective date: 20040924 |
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Effective date of registration: 20040924 Address after: Hsinchu Science Industrial Park, Taiwan Patentee after: Maode Science and Technology Co., Ltd. Address before: Hsinchu Science Industrial Park, Taiwan Patentee before: Maoxi Electronic Co., Ltd., Taiwan |
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Owner name: QUNCHUANG PHOTOELECTRICITY CO., LTD. Free format text: FORMER OWNER: MAODE SCIENCE CO., LTD. Effective date: 20091016 |
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Effective date of registration: 20091016 Address after: Science Road, Hsinchu, Taiwan, China Miaoli County Science Town, No. 160 Patentee after: Innolux Display Group Address before: Hsinchu Science Industrial Park, Taiwan Patentee before: Maode Science and Technology Co., Ltd. |
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| C56 | Change in the name or address of the patentee |
Owner name: QIMEI ELECTRONIC CO LTD Free format text: FORMER NAME: INNOLUX DISPLAY GROUP |
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| CP03 | Change of name, title or address |
Address after: Science Road, Hsinchu, Taiwan Science Park, Miaoli County, No. 160, science Road Patentee after: Chimei Optoelectronics Co., Ltd. Address before: Taiwan, China Science Road, Hsinchu, Miaoli science and Engineering Industrial Park No. 160 Patentee before: Innolux Display Group |
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Granted publication date: 20030917 |