TWI275068B - Driver integrated circuit - Google Patents

Abstract

A driver integrated circuit (IC) that can output a plurality of driver signals is provided. The driver IC includes a plurality of buffer output ports and a plurality of impedance components. Each of the buffer output ports outputs a buffer signal. Each of the impedance components receives independent buffer signals and outputs a driver signal from the output port. Therefore, these driver signals can be adjusted from the output port by tuning the impedance value of impedance components in the driver IC.

Description

I275 (M 16129twdl.doc/mita

I275(M 16129twdl.doc/mita my IP GROUP CONFIDENTIAL IX. Invention: [Technical Field] The present invention relates to a driving integrated circuit (Integrated ' 1C), in particular, an outputable complex array Driven by the children's one. Zhou Zheng mother group drive signal size drive ic. [Previous technology] ' v With the development of electronic technology, the design of liquid crystal display (LCD) technology is getting better and better, Whether it is the appearance = the volume occupied, or the function and product f provided by itself, it is more advanced than the month], and the cost of making the LCD is gradually reduced, so that the price is correspondingly reduced, so the more and more The more consumers buy monitors, they won't go to the traditional cathode ray tube (CRT) type of display. In the future, the future display market will gradually be replaced by LCD. The panel of the LCD is the same as the panel of the CRT display. It is composed of many small squares, but in the LCD, the voltage signal output by the driving ic is used to control the liquid. The degree of twist of the molecules to determine whether each liquid aa denier (red, blue, edge) is on or off, can not show the color. In general, the driving ic in the LCD can be divided into the X axis The source drives 1C and the gate drive ICs listed in the Y-axis. The LCD uses the voltage signals output by the two sets of drives 1C to control the arrangement and switching of hundreds of thousands of small halogens. The color surface is seen. Therefore, the voltage signal output by the driver 1C has a very important influence on the color surface displayed on the LCD panel. doc/m 1275 财财·月γΛ·, '图1' In the conventional technology, in the LCD, the output of the electric signal to the panel on the schematic diagram. For example, the length of the drive L is much smaller than (10) panel re = = when driving 1 (10) 1 The output end should be fanned out: Road: Long draw = each set of output to the panel's cloth is not opposite. As can be seen from the figure, the output end 111 produces ^ * length L4 will be the longest, while the output end 113 The length of the wiring path is two: the length of the wiring path L2 of the output terminal 115 is shorter than L3, producing L1; niC1 01 The output end 117 of the central position has a wiring path length of two/ϋ', and from the output end 119 to the output end 123, the length of the cloth and the spring road (four) will start to increase relatively. At the same time, when the voltage signal is transmitted on the wiring path that loses electricity for a long time, the loss of f23 and the general drive ια〇1 are designed, the output end of the signal is not mosquitoes, but it will be mosquitoes. The length of the path affects the magnitude of the voltage signal. This also means that the value of the voltage signal received by the receiving end of the fixed 并非 is not the size of the original ii value, thus causing the pixel brightness on the panel to drive the I month. c' in j 2 ' f _ is not in the conventional technique, the output voltage signal on the L __ _ f in the LCD to the active area of the panel (a schematic diagram of aetive. In order to improve the shortcomings in Figure 1 because of the wiring of the two ιι ° ° two, so in Figure 2 'drive 1C101's transmission ~ the design of the wiring method also made a different routing, 1275 twf. twf. The doc/m is compared with the schematic diagram shown in FIG. 1, and the output terminal 117 is connected to the wiring path of the panel: the line path 205 of the 'IC101' drive, and the output path 115 and the U: section of the winding path are the same. There are many more - the twists and turns of the household: the wiring to the panel is the same, the closer to the outer _ output, Μ ^03 and 201, the less the less, the outermost round-out spring path will increase the line path. Then, it is not necessary to increase the twists and turns of the driver. The wiring path originally used to drive the 1C 1〇1 terminal 117 is the shortest, and the position of the transmission path 2〇5 makes the wheel end 117 light j increase the zigzag The wiring path length 14 of the output terminal 111 is equal to 布线 reduced to the wiring path on the panel: - the fanout of the fan-out electric IC 101 is correct. c determines the voltage signal value received by the drive. Will === the same as the receiving end. The value of the voltage signal of the sigh & is not to solve the above mentioned problems by using this kind of increase and tortuous hitting; but it can be effective: the path mode must also occupy the beginning of more circuits on the panel' No on the glass: When using the design to increase the zigzag route path ° 2 wiring space 'then this [invention] 仏 The way to achieve thermal application. The purpose of this specification is to provide a built-in multi-plant component in 1C, which drives 1C, which drives 1C to impedance several pieces.

The voltage signal 'has no need to be used to drive the IC to adjust the voltage signal. In IC^H~ the purpose is to provide a kind of drive 1C, this drive Ic different wheel end, each cloth adjustment

Therefore, the external in is no longer required to adjust the voltage signal by driving the 1C. To improve the design of the circuit, the device is designed to provide a display device, and the display device and the driver 1c drive the display panel. Layout, can effectively make it to drive the display device on the glass line 2 drive driver IC 'This driver 1c can output complex array impedance component \ drive Ic including complex array buffer output and complex array m wheel Out-group buffer signal. In the foregoing complex array: anti-impedance element impedance tree has - input end and - output end, the output of each component receives a different buffer signal, and each set of impedance elements repeats 1;: 疋 will output the above The one-group drive signal mentioned. The different 卩H complex contact element wipes include at least two sets of electro-crystals as described in the f embodiment. The above-mentioned impedance element includes a ?, a % resistance and a second resistance. Wherein, the first receiving of the transistor is buffered, and the second end of the transistor is domain shouting. The first — 61 61 61 61 61 61 61 61 61 61 tw tw tw tw tw tw tw tw tw 。 tw tw tw tw tw tw tw tw tw tw 。 。 tw 。 。 tw The second end of the front: coupled to the first body: -;,. The second resistance signal, can be controlled === The three-terminal conduction of the Japanese body of the Japanese and Japanese. Not a voltage report 'When the control signal is high ::: control signal is low voltage level, electricity; the three ends of the Japanese body is open. And a private, according to the preferred embodiment, the second end of the ritual ^^ bean brother is the gate extreme.

IC 5 IC wiring components: the front array punches out the two or two I array buffer output end, each group is slow, the second complex array wiring component gamma, Γ has - input terminal and - lose ", each The input end of an electric device receives a different buffer signal, and each of the group of wiring elements rotates one of the above-mentioned ones of the driving signals at the end of the group. The middle of the bovine path group wiring components includes at least two The group of different paths is described in the preferred embodiment of the present invention, wherein the driving ic utilizes the routing path of the tuning component to change the size of the driving signal outputted from the wiring component. 9 127506^twf .doc/m According to a preferred embodiment of the present invention, the complex array driving signal output by the driving IC may be a voltage signal.

This number x shows another type of display, and the display device includes a complex array driver 1C and a display panel. Each of the above groups of driving π is used to output a complex array driving signal, and each group of driving 1C includes a complex array buffer output terminal and a complex array impedance component, wherein each of the buffer output terminals outputs a buffer signal, and each of the buffer outputs outputs a buffer signal. A set of impedance elements has an input end and an output end. The input end of each set of impedance elements receives a different buffer signal, and each of the output ends of the impedance element outputs the above-mentioned drive signal pot. In addition, the above-mentioned impedance element includes at least two different groups, and the above display panel has a complex array horizontal receiving end and a complex array vertical receiving end. Each group of horizontal receiving ends and each group of vertical receiving ends are used for receiving the front speed. One of the drive signals mentioned. The invention adopts a driving IC which can build a complex array impedance component, and ^ because the crane IC can output through each of the components of the anti-component device

The output voltage signal size is therefore no longer needed via the driver IC

The dice circuit performs the action of adjusting the voltage signal, so that the trouble in designing the circuit can be changed. J 乂汉. The above and other objects, features and advantages will be more apparent from the following detailed description of the example of the invention and the detailed description of the embodiment of the present invention. That is, in the mother-group output of this driver, before the output drive signal, a set of secrets

1275061轸—m ==' and the driver can change the resistance of each group of impedance components. V: This: =r=============================================================================== Week 4 moves. The function of ^ also avoids the design of the private spoon whisker and can reduce the wiring space on the glass. Referring to Figure 3, there is shown a block diagram of a pen drive in accordance with the present invention. As shown in FIG. 3, this embodiment uses a driving IC 301 having seven sets of output terminals 311 to 323 as an illustrative example, and the following is said. In general, the driving IC is in the circuit of the last stage. The buffer state fanouts the driving signal to be rotated, and since the driver IC3〇1 has 7 sets of output terminals 311 to 323, each of the output terminals is directly connected to the independent buffers B1 to B7. Output the drive signal. However, in the embodiment of the present invention, after the output ends of each of the buffers 61 to 87, a separate set of the resistor elements R1 to R7 are coupled to perform the adjustment driving signal. In this embodiment, each set of impedance elements has a rounding end and a transmitting end, and the input end of each set of impedance elements is only coupled to the lucky end of a set of buffers to receive the buffer The buffer signal output. Since the resistance values of the impedance elements of each group are different, when the buffer signal is transmitted to the output end of the driving IC 301 after passing through the impedance element, since some of the signal energy is lost in the impedance element, The original buffer signal size is changed. In this way, the driver IC 301 only needs to change the impedance value of the impedance component coupled to each group of output terminals, that is, the driving voltage value expected by 11 127506 & Wfdoc/m can be adjusted. . According to the prior art of FIG. 1 and FIG. 2, in the conventional design mode, the driving IC is in the transmission; the method of the zigzag line of different lengths can be obtained on the line path, The longer the zigzag route is at the output closer to the center. However, if the invention is used: to use IC3 (H, and apply D= when driving the LCD panel, and adjust the impedance element and value of each group of outputs at the last stage to reach and increase the zigzag The same effect of the line path ^ Γ Γ Γ - 组 = = = = = = = = = = = = = = = = 琥 琥 琥 琥 琥 琥 琥 琥 琥 琥 琥 琥 琥 琥 琥 琥 琥 琥 琥 琥 琥 琥 琥 琥 琥 琥 琥 琥 琥Applying this IC3G1 to different postal units, = each of the sets of wheels in the driver IC301 is built in the table = each device. So when designing the circuit, it can be 0丨 and cooperate with the conventional technology. The zigzag line used in the ==Zheng Zheng, so that the driver IC301 can be applied to more IC3G1 while adjusting with the zigzag routing path, the impedance component is adjusted by 4 = times, so 71 = path When the adjustment is made, the length of the zigzag path of the wiring is short. The plurality of sets of impedance elements R1 to R7 described by IC3〇r are the output of the parent set in the drive 1 311~323, the path length of the receiving end of the basin may not be the same - the length of the 1 is in the design ^ Element 12 Ι2750β^Μοο/π1 4th day can be + for different output terminals, using impedance components with different impedance values to match. If the wheel end 311 handle is connected to the receiving end, the path length (3) is originally long, so it is designed When the impedance element R1 is used, the = resistance element can be used. In the design of the impedance element of the transmission _17; κ Λ ;; ^ ^ 22 material navigation, this can improve the impedance end ^, R3 impedance value is also adjusted according to the output Driven by IC3G1 ° _ this step 1 and each set of rounds is lost in the transmission path, the driving shout energy will be the same, at this time, the circuit designer only recognizes each set of buffers in 1C, Referring to Figure 4, the performance is a circuit diagram of an impedance element according to the present invention. In Figure 4, the circuit of the impedance element is the internal circuit of Figure R1. As an illustrative example, as shown in Fig. 4, the impedance is composed of a parallel connection between the transistor M1 and the second resistor R8. = The component receives the buffer signal from the input terminal 403 and then the second resistor R8. The terminals are added up, and the output terminal 4〇= 13 Ι27506^— /ιώ Drive §fl Tiger. In the present example, 'Transistor Μ1 is a Metal-Oxide Semiconductor (MOS), this MOS transistor

The gate input terminal 401 of M1 additionally receives a set of externally input control signals, and the control signal can control whether or not the path between the first end and the third end of the MOS transistor M1 is turned on. Where '¥ controls the sfL level to the south voltage level, y[〇S transistor

The path between the first end of the M1 and the second end of the M1 is in a conducting state. Therefore, after the receiving end 403 receives the buffering signal, the buffering signal is outputted through the second end of the second resistor R8. From M〇s transistor

The third terminal output of M1 and the second end of the second resistor R8 are outputted by the wheel terminal 405 to drive the signal. # 衩 衩 衩 吼唬 为 为 为 为 为 为 为 为 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 mi mi mi 〇 mi mi mi mi 〇 mi mi mi mi mi The buffer signal will only output the driving signal through the second end of the second two-resistance R8, and will not flow in. The transistor 2 will be described by the upper phase. If the control signal is high, the buffer signal will pass through. When the input terminal 4G3 flows to the output terminal 405, the path 'is the second resistor R8 and the MOS transistor buffer transistor are respectively low in the on state, so the read 会 will be lost during the transfer process. less. The drive 1C3()1 of the embodiment shown in Fig. 3 is used in conjunction with the impedance element of Fig. 4. The wooden i port condition 3n has a fan-out path length L11!:m. The output end of the miscellaneous 1 (10) 1 is long. Therefore, the voltage value fanned out by the fan-out path L33 of the output terminal 311 2: 313 is relatively strict. 14 12750^^^^00/] 重# If the impedance components R1 and R2 at this time are exactly composed of the two examples described in Fig. 4, the control signal in the impedance component R1 can be set at this time. The high voltage level is set, and the control signal in the impedance element R2 is set to a low voltage level. _ So, since the loss of the signal in the impedance element R2 will be relatively heavy, the driving signal fanned out by the output terminal 313 will be lower than the driving signal fanned out by the output terminal 311, but the signal transmission process The fan-out path of the input terminal 311 is just more energy than the fan-out path of the output terminal 313. Therefore, the output ends 311 and 313 will lose the same energy during the transmission of the signal. Therefore, when different receiving terminals respectively receive the driving signals output by the output terminals 311 and 313, the voltage levels thereof will be the same. Therefore, if the circuit engineer is an application, the embodiment does not need to consider the influence of the signal level on the signal level when designing the circuit. Referring to Figure 5, there is shown a circuit diagram of another resistive element in accordance with the present invention. The impedance component in FIG. 5 differs from the resistive component illustrated in FIG. 4 in that it is at the first end of the MOS transistor M1, after the horse is connected to the first resistor R9, and then through the first resistor. R9 output drive. In this embodiment, when the control signal level is a high voltage level, the rush signal must flow through the :: R9 ' after flowing through the transistor M1. Therefore, when using this type of impedance element, it can be utilized. The magnitude of the impedance of the R9 is adjusted to the required buffer signal. In addition to the impedance elements shown in Figures 4 and 5, other types of impedance elements can be used in this implementation. Two = two 1275O ^ ^ twfdoc / m words 'usually when designing this type of impedance component, the impedance component value between each set of output, the maximum impedance difference is about 15 ohms, and the minimum impedance The difference may be 〇 ohms, and the arrangement positions of the output terminals are generally designed in a parallel manner for the cooperation and driving, and therefore the impedance elements in the driving IC may of course be arranged in a parallel manner. Although in the above embodiments, the driving IC for driving the LCD panel is taken as an illustrative example, those skilled in the art can of course apply this technique to different types of driving 1C, and if the driving IC is not fan-out This technique can also be applied when the voltage signal is used and the current signal is emitted from the fan. Referring to Figure 6, there is shown an internal structural diagram of another driving 1C proposed in accordance with the present invention. As shown in FIG. 6, in the embodiment, the output of the same punch is connected to a set of independent impedance components, and J is used as an adjustment signal. However, in the actual _, the length of the path is As an impedance element. According to the splicing of the cloth and spring according to the example illustrated in Fig. 3, it can be known that the fan-out path of 317 is the shortest so that the impedance element seems to be the largest, and the load at the output tends to be the same. Therefore, when this embodiment Medium impedance: When the length of the wiring surface is used as the impedance component, the output terminal = riR4, the wiring path must be the longest, and the loss must be two: ; Τ σ 唬, and in order to save the space inside the driving IC 301, (4) The area efficiency of the square wire resistance. The output end of the circuit board is 3: the output terminal of the moving: is short because the path of the fanout is shorter than the path of the fan of $17, so when designing the line path of the impedance component 16 1275, the length ratio impedance component can be designed. R4 is short. Of course, the output end 311 and the output end 323, the transmission path of the fan-out voltage at both ends is long, so the loss is the most serious, so in designing the impedance element R1 and the ruler 7 can not be secretly designed another multi-system (four) branch line (4) Connected to the direct mode design to avoid more serious loss of signals.

Referring to Fig. 7, a % shows a display device according to the present invention. The display device uses the above-described driver IC 301 in two or two. In the present embodiment, the display device 700 is a liquid crystal display. Generally, the liquid crystal display 701 f requires two drivers, a horizontal driver, a 7 〇 3 and a driver 705. The horizontal driver generates a pixel circuit write. The signal, the vertical driver 705 generates a data sampling number, and the liquid crystal display 701 controls the picture by the above two sets of drivers. As shown in Fig. 7, the horizontal driver 703 includes a complex array of insulting ICs 301a, 301b to 301c, and the vertical driver 7〇3, including

The driving ICs 301d, 301e to 301f, because the driving method of the present invention has first adjusted the output of each group of outputs in the interior of the driving IC, so that it is no longer necessary to carry out the ship by the wiring path of the line. In this way, it is possible to reduce the whisker during wiring and reduce the area occupied by the wiring line #. =Up-(4), the driving Ic proposed by the present invention, because the output of the m-group is ahead of the output driving signal, and then the -1L component is in the transmission path, so the driving Ic_ can be By changing::::anti:_impedance value size' adjusts the loss outputted by this output:: energy Ϊ two members = 丄: the number is in the entire transmission month 曰 所以 ' So when the receiving end is receiving When the signal is received, the voltage levels of the driving signals received by each of the 17 groups of receiving terminals are the same. So - come, when designing the money circuit, the designer should consider the length of the fan-out path to cause different degrees of damage: When designing the circuit, there is no need to design other anti-reactor components or circuits in the circuit. The function of the whole driving signal of the board 2 can effectively reduce the trouble and reduce the wiring space on the glass. π 限定 。 : : : : : : : : : : : : , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , : The scope of the cans attached to the scope of the patent is defined by the scope of the patent ~ [Simple description of the diagram] The circuit is a schematic diagram of the wiring mode of the drive ic in the lcd to the voltage signal on the panel in the conventional technology. In the conventional circuit of the circuit, the driving 1C in the LCD is shown in the figure. A schematic diagram of the alternate mode of the air pressure signal to the panel. θ, '_ is not a circuit block diagram of the driver IC proposed in accordance with the present invention. Θ A circuit diagram of an electrical impedance element of an anti-S component in accordance with the present invention.囷5,% shows another 18 according to the invention

Claims (1)

12750 激16129twdl .doc/mita 12750 激16129twdl .doc/mita Jr IP GROUP CONFIDENTIAL X. Patent application scope: The driving body circuit 'suppresses the plural secret signal, the signal rushes out the wheel, each - the buffer The output end rotates a buffer-piece 'every-the impedance elements have one of - the input end and the rush = each of the different ones; the output of the output of the drive signal S S7 at least includes two different sets The impedance value. The driving integrated circuit according to the first item of the first aspect of the present invention, wherein the impedance element comprises: the beta-type electric tower has a dry drain of 7曰, the first end of the transistor receives the buffer signal, and the transistor The second end receives a control signal; and the first end of the first resistor is connected to the first end of the transistor, and the second end of the resistor is coupled to the transistor. The third end; the 曰^ signal is used to control whether the first end of the transistor is electrically connected to the second end of the ego body. ^3. The driving integrated circuit of claim 2, wherein the third end of the first 盥 + 曰 body of the transistor is in a conducting state when the 忒 control 汛唬 is at a voltage level. 4. The driving integrated circuit of claim 2, wherein the control signal is a low voltage level, and the third end of the transistor is open to the third end of the transistor.甩曰曰 20 12750· 16129twd 1 .doc/m ita is IP ...5 驱动 驱动 中 专利 专利 专利 专利 专利 专利 专利 专利 = = = = = = = = = = = = = = = = = = = = = = = = = = = '6. 6. The second end of the MOS semiconductor according to the fifth patent application. The driving of the impedance element further includes a second resistor, wherein the second resistor 5 has a third end of the transistor and a second end of the second resistor. Output ==8: As described in the first paragraph of the patent application scope, the _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Where &gt; 9. The driving elements described in item i of the range of the towel are arranged in a parallel manner. , zhong 〇 如 如 % % % % % 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 些 些 些 些 些 些 些 些 些 些 些 些 些 些 些In the table, a driving integrated body 'for outputting a complex array driving the driving integrated circuit includes: now, reading a complex number, and buffering the wheel end, each of the buffering output signals; and balancing the complex array a wiring component, each of the wiring components having an output terminal 2, the input terminal receiving phase of each of the wiring components, wherein the output terminal of each of the wiring components outputs the % motion/in The wiring components include at least two different types of wirings. 12. The driving integrated circuit described in the scope of the patent application 帛u. 21 1275% &amp; 16129 twdl .doc/mita Jfc IP GROUP CONFIDENTIAL Changing the length of the routing path of each of the wiring elements for adjusting the size of the driving signal respectively outputted from each of the output terminals. 13. The driving integrated circuit of the U. The signal is a voltage signal. The display device comprises: a complex array driving integrated circuit, each of the driving integrated circuits is configured to fan out the complex array driving signals, and each of the driving integrated circuits comprises: a complex array buffer wheel output end And each of the buffer outputs outputs a buffer signal; and the plurality of array impedance elements, each of the impedance elements has an input end and an output end, and each of the impedance elements of the impedance element receives the phase= The buffer signal, the output end of each of the impedance components outputs one of the driving signals; wherein the impedance components include at least two different impedance values, and the number of the display panel has a complex array The horizontal receiving end and the receiving end are configured to receive one of the driving signals.罝 其中 其中 其中 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该Receiving a control signal at the terminal receiving the buffer body; and - a first resistor, the first resistor of the first resistor - the 22 12750 fiber 9 16129 twdl .doc/mita IP GROUP CONFIDENTIAL end, the second resistor The end is coupled to the third end of the transistor; wherein the control signal is used to control whether the first end of the transistor is electrically connected to the third end of the transistor. </ RTI> 16. The display device of claim 15, wherein the first end of the transistor and the third end of the transistor 导' are in a conducting state when the control signal is at a south voltage level. 17. The display device of claim 15, wherein the first end of the transistor is open to the third end of the transistor when the control signal is at a low voltage level. 18. The display device of claim 15, wherein the electro-crystalline system is a gold-oxygen semiconductor. The display device of claim 18, wherein the second end of the MOS is a gate terminal. 20. The display device of claim 14, wherein the display panel is a liquid crystal display. twenty three