TW309597B - LCD device - Google Patents

Abstract

A LCD device includes: 1) a LCD plate for holding a LC layer in which one of the substrate has plural scanning electrodes and the other has plural signal electrodes. The cross section of the scanning electrode and the signal electrode is a spot for displaying; 2) a driving circuit for scanning electrodes providing the driving voltage waveform to the scanning electrodes; 3) a driving circuit for signal electrodes providing the driving voltage waveform to the signal electrodes; 4) a power circuit providing the power source for the above two driving circuits; 5) a compensation method which applies the compensating voltage waveform on at least one of the scanning electrode and the signal electrode for the LCD to display text or graph; 6) a detecting method in the compensation method to detect the voltage or current variation in one of the driving circuits for scanning electrodes and signal electrodes and the power circuit. The detected variations are then converted into the corresponding compensating voltage waveform.

Description

Α6 Β6 Printed by R Industrial and Consumer Cooperative of Central Bureau of Standards of the Ministry of Economy V. Description of the invention (1) [Industry use field] The present invention is related to the liquid crystal display device, in particular, it improves the working point and depth of the display. Uneven liquid crystal display device. [Conventional Technology] The liquid crystal display panel of a liquid crystal display device uses a voltage waveform (hereinafter referred to as a driving voltage waveform) composed of different voltages generated by a power supply circuit in the liquid crystal display device to supply the driving voltage waveform to The scanning pole and the signal mold pole constituting the liquid crystal display panel are driven and displayed. Moreover, these driving voltage waveforms also change according to the display contents of the liquid crystal display panel. Here, because the liquid crystal display panel has a capacitive load (that is, both the scanning electrode and the signal electrode have resistance), the difference in the voltage waveforms applied to the scanning electrode and the signal electrode makes it imposed on the scanning electrode The voltage waveforms of the electrode and the signal electrode are distorted, so spots and unevenness in the display may occur. In response to this problem, in the past, the method described in Japanese Patent Application Laid-Open No. 2-89, which was filed by the applicant, was "a method of correcting its deformation by adding a correction voltage to the driving pressure waveform". Seeking a solution. [Problems to be Solved by the Invention] However, although the method described in Japanese Patent Laid-Open No. 2-8-9 can significantly reduce the problem of speckle and unevenness on the display, but (please pay attention to the Mf surface first Write this page again) Binding _ Order. Line < This paper size is suitable for China National Standard (CNS) A 4 specifications (210 X 297 mm) -4-A6 printed by the Codex Consumer Cooperative of the Central Bureau of Economic Development of the Ministry of Economic Affairs B6_ V. Description of the invention C) When performing this method, it is necessary to prepare a circuit for pre-computing the correction. The liquid crystal display device itself tends to be complicated and it is difficult to make it compact and lightweight. The present invention has been developed in view of the foregoing problems, focusing on: the deformation of the pressure waveform applied to the scan electrode and the signal electrode is caused by the sum of the voltage changes on the signal electrode relative to the voltage changes on the scan electrode The situation is formulated, and the current corresponding to the sum of this voltage change will flow to the power circuit, so it is estimated that the broadcast electrode or signal in the LCD panel is monitored by monitoring these voltage changes or current changes. «The deformation that occurs in the pole, and the use of adding a correction voltage that can be used to offset this deformation to the driving voltage waveform, in order to eliminate the spots, unevenness and other phenomena on the display, the purpose is to provide a simple The circuit configuration of the high-quality display device that solves the phenomenon of spots and unevenness on the display and the display device that looks more comfortable is a small and light-weight electric-motor- * sub-machine. [Means for solving the problem] The liquid crystal display device of the first invention of the present case is provided with: a liquid crystal display panel, which is one of a pair of substrates for sandwiching a liquid crystal layer A plurality of scanning electrodes are formed on the substrate, and a plurality of signal electrodes crossing the foregoing scanning electrodes are formed on the other substrate, and the intersecting portions constitute display points; and the scanning electrode driving circuit, such as To supply the driving voltage waveform to the above-mentioned plurality of scan electrodes of the liquid crystal display panel; and (please read the note f on the page before filling in this page> 丨 Installation_ order (CNS) A 4 specifications (210 X 297 mm) -5-

Sops # A6 B6_ printed by the Beigong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 5. Description of the invention (3) Signal electrode drive circuit, used to supply drive voltage waveform to the aforementioned plurality of signal electrodes; and power circuit, used to generate : A complex voltage required to form the scan electrode driving circuit to supply the driving calendar waveforms of the plurality of broadcast circuits, and a complex number required to form the signal electrode driving circuit to supply the driving voltage waveforms of the plurality of signal electrodes Voltage; and correction means for appending the correction voltage corresponding to the text and graphics displayed on the liquid crystal display panel to: the drive voltage waveform to be applied to the scan electrode and the signal to be applied to the signal electrode The liquid crystal display device in the form of at least one of the two waveforms of the driving voltage waveform is excited as follows: the correction means has a detection means, such as for detecting that the liquid crystal display panel or the scan electrode is driven At least one of the circuit or the aforementioned signal electrode driving circuit or power supply circuit Part of the generated voltage or current change, and the voltage corresponding to the magnitude of the voltage or current change detected by the detection means is used as the aforementioned correction voltage. The liquid crystal display device of the second invention of the present invention is like the liquid crystal display device of the first invention of the present invention, wherein the detection means is used to detect: at least one scan of the plurality of scan electrodes of the liquid crystal display panel A voltage changer between a voltage difference between at least one of the voltage generated by the electrode driving voltage waveform and the voltage necessary to form the driving voltage waveform supplied to the plurality of scan electrodes by the scan electrode driving circuit. The liquid crystal display device of the third invention of this case is applicable to the Chinese National Standard (CNS) A4 specifications (210 X 297 mm) for the paper size of the above case. _ _ (Please read the note on the back and then write Page). Binding · Order,-Line ί A6 B6 Printed by the Ministry of Economic Affairs, Central Associate β Industry Consumer Cooperatives V. Invention Description (4) The liquid crystal display device of the first invention, in which the liquid crystal display panel is formed with the aforementioned On the substrate of the scanning electrode, the substrate on which the signal electrode is formed is intersected with at least a certain part of the plurality of the aforementioned signal electrodes, at least some of the plurality of the aforementioned scanning electrodes At least one or more voltage detection electrodes are formed in a partially crossed manner; and the aforementioned detection means is used to detect voltage fluctuations occurring at the aforementioned voltage detection electrodes. The liquid crystal display device of the fourth invention of the present invention is directed to the liquid crystal display device of the first invention of the present invention, wherein the detection means is directed to at least one voltage supplied to the scan electrode driving circuit by the power supply circuit, and A current flowing from the power source to the scan electrode drive circuit is detected. The liquid crystal display device of the fifth invention of the present case is like the liquid crystal display device of the second, third, or fourth invention of the present case, wherein when the change of the voltage or the small current detected by the aforementioned detection means has a plurality of inclination At this time, the correction means is set: the change in the complex slump pressure or current detected by the detection means can be regarded as a function of the holding of the complex sluggish variable, and a correction spurious pressure corresponding to the function is generated. The liquid crystal display device of the sixth invention of the present invention is directed to the liquid crystal display device of the fifth invention of the present invention, wherein the aforementioned function is a function for averaging the plural variables. The liquid crystal display device of the seventh invention of the present invention is directed to the liquid crystal display device of the third invention of the present invention, wherein when the voltage detected on the liquid crystal display panel detects that a plurality of values exist, the correction ( Please read the note $ item on the back and then f this I > 丨 installed. Order _ line paper size is applicable to China recommended home standard (CNS) A 4 specifications (210 X 297 mm) -7-Central Bureau of Standards 8 A6 B6 printed by the industrial and consumer cooperative. V. Description of the invention (5) The method is set: the voltage change detected by each of the aforementioned voltage detection electrodes by the aforementioned detection means can be used as a specific function of a plurality of variables, and the response A plurality of correction voltages in this function, and the correction voltage to be added to the drive waveform on the signal electrode or the scan electrode, as the signal electrode or the scan electrode is located on the liquid crystal display panel The position within the range is determined from one of the plurality of correction voltages mentioned above. The liquid crystal display device of the eighth invention of the present invention is directed to the front In the liquid crystal display device of the third invention of the present case, the voltage detection electrode image will be: the area of the intersection of the voltage detection electrode and the plurality of signal electrodes or each of the scan electrodes is based on the signal electrode or This area is different for the scanning electrodes. The liquid crystal display device of the ninth invention of the present case is directed to the liquid crystal display device of the fifth invention of the present case, wherein the correction means is set to: the detection means can be detected The changes of the plurality of voltages or currents as a specific complex value function of the plurality of variables, and generate a plurality of correction voltages corresponding to the complex value function; and will be added to the signal electrode or the scan electrode The correction voltage on the driving waveform depends on the position of the signal electrode or the scan electrode in the liquid crystal display panel, and one of the correction voltages is determined from the plurality of correction voltages. The first invention of this case The liquid crystal display device is a liquid for the aforementioned third invention Crystal display device, wherein the aforementioned correction means generates the voltage change and the aforementioned liquid crystal in response to the aforementioned detection means (please read the notes first »item and then write this page)-installed. Ordered. This paper size is applicable to China National Standard (CNS> A4 specifications (210 X 297 mm) _ 8-

Correction voltage of the number of bright dots among the aforementioned display dots of the printed display panel of the Central Ministry of Economic Affairs of the Ministry of Economic Affairs #Cooperative Du Printed Panel · The 11th invention of this case is a kind of machine, and its special withdrawal is: [ Example] (First Example) The following is a detailed description of the method for stimulating the present invention with examples. Here, first, the case where the display unevenness in the arrangement direction of the signal electrodes of the liquid crystal display panel is to be eliminated To illustrate. Fig. 1 is a diagram showing the configuration of this embodiment. In the figure, 10 represents a liquid crystal display panel, which is composed of a pair of substrates 101 and 102 sandwiching a liquid crystal layer (not shown). On one of the substrates 101, scan electrodes Y1 to Y6 are formed. Signal electrodes XI ~ X6 are formed on one substrate 102. Here, although scan electrodes Y1 ~ Y6 and signal electrodes XI ~ X6 only show a relatively small number of six, this is to simplify the description , Usually the number is more than this number. 1 1 is the X driver, and 1 1 1 ~ 1 1 3 is the internal composition requirements, which are 6-bit shift register circuit, 6-bit latch circuit, and 6-bit four-circuit single circuit. Contact analog switch circuit • The number of bits represents the number of signal m poles of the LCD panel 10. The 12-series Y driver, and 121 and 122 are internal configuration requirements, which are 6-bit shifts. Memory circuit, 6-bit four-circuit single-sheet paper standard universal Chinese national rate (CNS) A4 specification (210X 297 mm) -------- {策 ----- r--book-- ---- ^ (Please read the precautions on the back before filling in this page) -9 ~ Α6 Β6 Printed by the R & C Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs V. Invention Instructions (7) Analog switch circuit of contacts. The bit number system represents the number of scanning electrodes of the liquid crystal display panel 10. As for the data signal, CK signal, LP signal, D I signal, FR signal are supplied from the outside. The above components are the same as the previous components. 1 3 represents the power supply circuit. When the 6-level voltage for driving the liquid crystal display panel is to be generated, it has the following: voltage V0-electricity 1 = voltage V 1-voltage V2 = voltage V3-voltage V4 = When voltage V4—voltage V5 (= V), and voltage V0—voltage V5 = n ♦ V (η is a positive number, usually around 10), when the electric MVO ~ V5 is off, 131 represents the voltage division circuit, as shown by 5 The branch resistors R1, R2, R3, R4, R5 are composed, the resistors R1, R2, R4, R5 have a resistance value R, and the resistor R3 has a resistance value of (n-4) R. At both ends of the electronic segmentation circuit 1 3 1, that is, when the electric voltage V 0 and the voltage V 5 are added above the resistor R1 and below the resistor R5 in the figure, respectively, each resistor R 1 And R2, R2 and R3, R3 and R4, R4 and R5 are divided to generate voltages VI, V2, V3, V4, respectively. 0P1 ~ 0P4 are voltage amplifying circuits for outputting the voltages VI, V2, V3, and V4 generated by the voltage division road 1 1 after lowering their impedances. These voltage amplifying circuits 0P1 ~ 0P4 are generally composed of a lotus amplifier circuit. 132 is a reference voltage switch, which is a switch that is output after switching to voltage VI or voltage V4 in response to the FR signal. 133 Ye input voltage switching control circuit, used when the driver is installed in (please pay attention to the first page before writing this page). Order-.Line f This paper standard applies to the national standard rate (CNS) A 4 Specifications (210 X 297 X PCT) -10-A6 B6 Printed by the Central Standards Bureau of the Ministry of Economic Affairs Xinggong Consumer Cooperative. V. Description of the invention (8) Image output during the period when the selected voltage is input to one of the scan electrodes Y1 ~ Y3 " 0 〃; while the Y driver outputs the switch control signal 1 34 of a 1 〃 while the selection voltage is input to one of the scan electrodes Y4 to Y6. Because this circuit is composed of: a counting circuit that takes the LP signal as a clock signal, a DI signal as a reset signal, and a comparison circuit that compares the result size of this counting circuit, etc., can be easily formed. The illustration and detailed description are omitted. 135 represents the input pressure switching switch. When the switch control signal 134 is > 1 〃, the voltage waveform output from the Y driver 12 to the scan electrode Y2 is selected for output; when the switch control signal 134 is "0 ", then Select the voltage waveform output to Y5 for output. 1 3 6 represents the differential amplifier circuit, which is used to output the difference between the voltage output from the reference voltage switch 21 and the input voltage switch. 1 3 7 ~ 1 4 ◦ representative For the voltage addition circuit, the voltage supplied from the outside and the voltages VO, V2, V3, and V5 output from the voltage amplifying circuits 0P2, 0P3 are added to the voltages output from the differential amplifying circuit 136, respectively. The voltages V0 ·, V2 ', V3', and V5 'are output. Here, the example of the configuration of the voltage adding circuit 137 ~ 14 is shown in Figure 2. In the figure, the terminals are used to input the reference voltage. To the terminal, input one of the voltages VO, V2, V3, and V5 in Figure 1. In Figure 2, the terminal Vin is used to input the voltage output from the differential amplifier circuit 1 3 6. 201 is a resistor, 202 Is formed by a capacitor The sub-circuit, 2 03 is a voltage amplifying circuit composed of lotus arithmetic amplifying circuits. Terminals (please read the note on the back before filling this page)

T This paper scale is applicable to "National Standards (CNS> A4 Specification (210 X 297 mm) -11-A6 B6 Printed by the Employees Consumer Cooperative of the Central Standards Bureau of the Ministry of Economy V. Description of Inventions ¢ 9) V. UT is used to output the output of the voltage amplifying circuit 203, and corresponds to the voltages VO ·, V2 ·, V3 ', and V5 · in Fig. 1. Here, the voltage output from the differential amplifier circuit 136 input to the terminal Vin in FIG. 2 is almost close to the differential waveform, so by connecting this voltage to the resistor 2 0 1 and the capacitor 2 0 2 composed of [sub-circuit terminal \ ^^, and was able to output from the voltage amplifying circuit 2 0 3 an inclination similar to the terminal Vm / voltage plus the terminal Vin voltage obtained by the warmth and in the first In the figure, the voltages V0, VI, V4, and V5 are supplied to the Y driver 12, and the voltages VO, V2, V3, and V5 'are supplied to the X driver. Here, the voltages V5 and VI supplied to the Y driver 12 and the electric boats VO · and V2 'images supplied to the X driver 11 are respectively referred to as: selection electric M, non-selection of the first electric body Voltage, lighting voltage, non-lighting voltage; and voltages V0, V4, V5 ·, V3 'are called: the second voltage group selection voltage, non-selection voltage, lighting voltage, non-lighting voltage. This embodiment constitutes this embodiment. The connection image between the circuits is clearly seen from the first circle, and the explanation is omitted. As shown in Figure 3, it is pseudo-supplied from the outside: data signal, CK signal, LP signal, D I signal. The operation will be described below. First, the X driver 11 sequentially takes in the data signals for determining the display content into the shift register circuit 111 in synchronization with the CK signal shown in FIG. 3 for shifting. Then, in the shift register Xiaolu (please read the note on the f-face first and then f this page). Binding · Order-The size of the clothing paper is in accordance with the Chinese National Standard (CNS> A 4 specifications (210 X 297 mm) -12-^ 〇〇5〇γ Α6 Β6 Printed by the R and Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy V. Description of Invention (1〇) 111 If the same number of data as the number of signal electrodes of the liquid crystal display panel 10 is taken in 111, then The contents of each bit of the shift register circuit 111 are taken into each bit of the latch circuit 112 in synchronization with the LP signal shown in Figure 3. The output of the level shift circuit 1 1 3 corresponds to Take the content in the latch circuit 112 and the voltage of the FR signal 15. That is, when the content of each bit taken in the latch circuit 1 1 2 represents "lighting" (hereinafter referred to as * 1) The lighting voltage is output at the time; when the content represents "non-lighting" (hereinafter referred to as a 〇 "), the non-lighting voltage is output. And, when the FR signal indicates that the first voltage group is selected (below When the abbreviation is "0", the first voltage group is output; when the FR signal indicates that the second voltage group is selected (in order to When abbreviated as * 1 ..), the second voltage group is output. The Y driver 12 selects the DI signal shown in FIG. 4 used to determine the scan electrode in synchronization with the LP signal and sequentially takes it into the shift. The bit register circuit 121 is shifted. The level shift circuit 122 outputs the voltage corresponding to the content taken in the latch circuit 121 and the FRI signal 15. That is, when the latch circuit 1 1 2 The content of each bit of the input is to output the selection voltage when indicating "selection"; the content is to output the non-selection voltage when indicating "non-selection". Moreover, the first voltage is falsely output when the FR signal is 15 * 0 〃 When the FR signal is * 1 ", the second voltage group is output. Here, the input voltage switching control circuit 133 switches its input voltage switching switch to: when the selected voltage goes from the scan electrodes Y1 to Y3, It is the voltage output from the Υ driver 12 to the scanning electrode Υ5 (please read the notes on the back and fill in this page first) Mm) -13-A6 B6 Ministry of Economic Affairs Central Bureau of Workers kind of quasi-printed consumer cooperatives

5. Description of the invention (H) The output to the differential amplifier circuit 1 3 6; and when the selection voltage is applied from the scan electrode Y4 to Y6, the voltage output from the gamma driver 12 to the scan electrode Y2 is output to the differential Amplifier circuit 1 36. Therefore, in response to the FR signal, the voltage waveform in which the voltages V 1 and V 4 are alternately superimposed into the distortion (distortion) can be output to the differential amplifier flute 1 3 6. At this time, the reference voltage switch 132 then In response to the FR signal, one of the voltages V1 or V4 is output to the differential amplifier circuit 1 3 6 0. Therefore, only the voltage waveform of the differential amplifier circuit 136 is output to the scan electrode Y 2 or Y 5 by the output Y driver 12 Distortion weight. These distortions are added to the voltages V0, V2, V3, and V4 by the voltage addition circuits 137 to 140 and output to the X driver 11 as the voltages V0 ', V2, V3, and V4. Due to the above-mentioned operation, when the voltage applied to the scan electrode applied to the non-selected voltage (VI or V4) is distorted (this distortion is regarded as Ve), the voltage on the scan electrode becomes Vc + Ve. At this time, the voltage on the signal electrode becomes: voltage V0 ·, VI · or V3 ·, V5 · which is obtained by adding Ve to voltages V0, VI or V3, V5. Therefore, the voltage difference between the scan electrode and the signal electrode becomes: V 〇 ·-v 1 = (V 0 + V e)-(Vl + Ve) = V Vl-V2 '= (Vl + Ve)-(V2 + Ve) = V (Please read the note $ item on the back and then $ this page)

K-installed. Ordered, • line. This paper scale is applicable to the Chinese National Standard (CNS) A 4 specifications (210 X 297 mm) -14-A6 _Β6_ printed by the R-Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs (12) V3.-V4 = (V 3 + V e) — (V 4 + V e) = V V4-V5 '= (V4 + Ve)-(V5 + Ve) = V regardless of the size or direction of the distortion Why, the difference is always kept constant. Therefore, the effective electrical charge applied to each point of the LCD panel 10 becomes no difference, and there will be no unevenness or spots on the display. This image is shown in Figure 4. The fourth image shows a part of the voltage V0 ~ V2 and the voltage V0 · ~ V2 · and the output waveform of the Y driver 12 input to the scan electrodes Y2 to Y5 when the liquid crystal display panel 10 is displaying. In the middle, the dashed lines 401 ~ 402 represent the voltage V ◦ ~ V2; the solid lines 404, 406 represent the voltage 0 ′, " 2 ·; the solid line 405 represents the output waveform of the Y driver 12 from the mountain to the scan electrodes Y2 to Y5 407 and 408 respectively represent the voltage difference between the voltages VO ', V2' and the output waveform 405 of the Y driver 12. And 401 ~ 403 are used for easier identification. Slightly stagger the display. Here, when the output waveform 405 of the Y driver 12 is distorted and a voltage change occurs, the voltage of 4 0 4 and 4 0 6 that is the voltages V Ο ′ and VI · also changes following this change In this way, the voltage difference 407, 408 can always remain constant regardless of the distortion value. Here, although the first voltage group is described, the second voltage group also becomes the same. Although the Y driver 12 outputs The deodorization of the voltage waveform is simply added to the voltage supplied to the X driver 11; however, compared to the distortion of the voltage waveform output by the Y driver 12, the amount of distortion inside the liquid crystal display panel 10 is greater, so You can also take into account this amount of distortion (please read the notes on the back before writing this page > Binding · Binding-i Line · This paper scale is applicable to China B Standard (CNS) A 4 specifications (210 X 297 Mm> -15-A6 B6 printed by the S Industry and Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 5. Description of the invention (13) The voltage added to the voltage supplied to the X drive 11 is increased. This value can be determined by the difference The gain of the dynamic amplifier circuit 136 is set to an appropriate It is easy to set up. And in this case, it is not necessary to increase the detected distortion into a linear shape. In addition, the reference scan electrode is selected here to represent Y2 and Y5, but It is not limited to this, and it can also be a scanning electrode of any part. In addition, the average value of the distortion of a plurality of scanning electrodes can also be used. As mentioned above, the voltage fluctuation on the scanning electrode can be detected to make the signal electrode The voltage on the display also fluctuates in response to this, by which the unevenness and speckle on the display can be eliminated easily and with a simple structure. (Second Embodiment) Although the first embodiment shows a method of adding a correction electric surge to the drive voltage waveform of the signal electrode, the method of adding a correction voltage to the drive voltage waveform of the scan electrode is also easy and possible. Get the same effect. Here, FIG. 5 is used to describe an example of the configuration of this embodiment. In the figure, 53 represents a power supply circuit, and the parts other than 531 to 533 in the power supply circuit 53 are the same as those in FIG. 1, so they all show the same Figure number and its description is omitted. 5 3 1 represents a differential amplifier circuit. It is used to reverse the polarity of the voltage output from the reference voltage switch 21 and the input voltage switch to reverse its polarity before outputting. 5 3 2 and 5 3 3 images are with voltage addition circuit as shown in Figure 1. This paper standard is applicable to Chinese National Standards (CNS> A 4 specifications (210 X 297 mm) ~ 16 ~ (Please note the MtRJC first (Fill in this page). Installation _ Order · A6 B6 printed by the Beige Consumer Cooperative of the Central Oak Bureau of Economics of the Ministry of Economy V. Description of the invention (14) 137 ~ 140 The voltage addition circuit with the same circuit configuration is located in the voltage amplifying circuits OP1, 0P4 The output voltages VI and V4 plus the voltage output by the differential amplifier circuit 5 3 1 are output as wires V 1 · and V 2 ·, respectively. In Figure 1, the voltages VO, VI ·, V4 ·, V5 are supplied to the Y driver 12; voltages V0, V2, V3, V5 are supplied to the X driver. Here, the voltages V5, VI · supplied to the Y driver 12 and to the X driver 1 1 The voltages V0 and V2 are the selected calendar, non-selected voltage, lighting voltage, and non-lighting voltage of the first voltage group; and the voltages V〇, V4 ·, V5, and V3 are the selection of the second voltage group, respectively Voltage, non-selected voltage, lighting voltage, non-lighting voltage. Because of the aforementioned structure When the voltage on the scan electrode applied with a non-selected voltage (VI or V4) is to be distorted (set this distortion to Ve), that is, when the voltage on the scan electrode becomes Vc + Ve, the voltage adder 532, 533 is to add a voltage of Ve to the voltage VI or V4, so that the original distortion will be cancelled. Therefore, the distortion of the non-selected voltage on the scan electrode almost disappears, so that the density on the display is not Phenomenon such as uniformity and speckle will not occur. In addition, compared with the amount of distortion of the voltage waveform output by the Y driver 12, the internal distortion of the liquid crystal display panel 10 is greater, so this part of the distortion can also be considered The size of the correction voltage added to the voltage supplied to the Y driver 12 is increased. This size can be easily set by setting the gain of the differential amplifier circuit 531 to an appropriate value (please read first (Notes on the back will write this page again)

X _ Pack · Order.

-Line K This paper scale is applicable to the Zhongyue National Standard (CNS> A4 specification (210 X 297 public potentiometer) -17-309597 A6 B6 Printed by the R and Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy V. Invention Instructions (15). In this case, it is not necessary to increase the detected distortion into a linear shape. As mentioned above, even by detecting the voltage fluctuation on the scanning electrode, the voltage on the signal electrode also corresponds The method of changing the ground can also eliminate the unevenness and spots on the display. Also, even if the first embodiment is combined with the second embodiment, the correction voltage is added to the two driving voltage waveforms of the signal electrode and the scan electrode at the same time. This method also has the same effect. (The third spring embodiment) In the first and second embodiments, the distortion of the output waveform of the Y driver output to a specific scan electrode is used to make the X driver or Y The voltage of the driver changes to eliminate the unevenness and speckle on the display. Although it is explained in detail in Japanese Patent Application No. 2-89 published by the inventor, it is simple here It is said that the output waveform of the Y driver and the distortion of the voltage waveform on the scan electrode are set based on the sum of the voltage changes of the scan electrode to the scan electrode. Therefore, it can also be used: the scan electrode formed on the liquid crystal display panel A voltage detection electrode is formed on the substrate. This voltage detection electrode is combined with the capacity of the signal electrode through the liquid crystal layer, and the sum of the voltage changes of the signal electrode is detected. From this result, the distortion on the scan electrode is estimated. The voltage supplied to the X driver is changed. The following is a detailed description of this embodiment with reference to Figure 6. In Figure 6, you show the structure of this embodiment. In the figure, except for the LCD panel 10 a and the electric power, please read first (Notes on this page will be written on this page). Binding _ Order. This paper standard is applicable to China National Standard (CNS) A 4 specifications (210 X 297 mm) -18-Central Standard of the Ministry of Economic Affairs Printed by S Industrial and Consumer Cooperative A6 B6 V. Description of the invention (16) Except for the source circuit 63, the other parts are the same as the structure of FIG. 1, so the description is omitted. The liquid crystal display panel 10a in FIG. 6 is like the liquid shown in FIG. The voltage detection electrode YD is newly added to the substrate 1 Ο 1 of the crystal display panel 10. The yoke pick-up electrode YD is all located opposite to the signal poles XI ~ X6 as shown in the figure. : The influence of the scanning electrodes is different because each signal electrode is different, that is, the voltage changes from the signal electrodes X1 to X6 are different, resulting in different effects on the scanning electrodes. Next, the width of the voltage detection electrode YD may not be kept the same, for example, it may be formed to gradually widen from left to right. In FIG. 6, 63 represents a power supply circuit, except for 631 ~ 6 3 3 The component image is the same as the power supply circuit 13 in FIG. 1 and the explanation is omitted. The 631 image is a resister. A differential circuit is formed by a voltage detection electrode YD provided on the liquid crystal display panel 10a and a capacitor composed of signal electrodes X1 ~ X6 facing it. 632 represents a voltage amplifying circuit. It is used to reduce the impedance generated by the voltage detection electrode YD and then output it. This voltage amplifying circuit 632 is not limited to a magnification of 1 times, and may also be a non-inverting amplifier that can amplify any multiple. 632 Ye is a switching circuit for switching the voltage applied to one end of the resistor 6 31 (hereinafter referred to as reference voltage) to a voltage VI or a voltage V4. That is, when the Y driver uses the voltage V1 as a non-selected voltage, the voltage V1 is applied to one end of the resistor 6 3 1; when the voltage V4 is used as a non-selected electric paper, the standard of the paper is 88 standard ( CNS) A 4 specifications (210 X 297¾ cm) ----------------- c ------ installed ------ ordered ---- line C 丨 (please read the precautions on the back and then f this page)-A6 B6 Printed by the Central Standards Bureau of the Ministry of Economic Affairs, Industry and Consumer Cooperatives 5. The description of invention (Π) When the voltage is applied, the voltage V4 is added to the resistor 631 One end. Due to the above-mentioned configuration, the voltage amplifying circuit 632 will generate a change in the Huo pressure corresponding to the sum of the changes in the pressure of each signal electrode X1 ~ X6. Using this voltage change, the voltage adding circuit 137 ~ 140 Electric VO, V2, V3, V5 · will be generated. After the operation of the aforementioned configuration method is performed, since the same operation is performed as in the first embodiment, in addition to obtaining the same effect, when the driving method does not use the voltage averaging method, for example, Japanese Patent Application When the method of driving the liquid crystal display panel with the method of applying voltage waveforms of different shapes with two-valued voltages to the scan electrodes and driving the liquid crystal display panel as shown in the publication No. 6 0-2 4 7 2 2 4 is due to the voltage of each scan electrode Because the waveforms are different shapes, it is difficult to directly detect the distortion of the scan electrode. Therefore, the method of estimating the distortion on the scan electrode by using the voltage detection electrode in this embodiment is a very effective method. In addition, because of the two types of voltages of the non-selective voltages VI and V4 used by the Y driver 12, the switching circuit 631 becomes what it needs. That is, when it is detected that the non-selected voltage corresponding to the output of the Y driver 12 is the sum of the electrical changes on the signal electrodes, when the non-selected voltage output from the Y driver 12 is switched by the voltage VI (or V4) When V4 (or VI) (ie, when the FR signal changes), the reference voltage applied to one end of the resistor 631 also needs to be changed. Therefore, the non-selected voltage is shared, and based on the non-selected voltage, the Y driver is configured to be driven by a group of positive and negative voltages with the same absolute value of the selected wiper (not necessarily a group). , And (please read the notes on f before writing this page) Γ

I-The paper standard is in accordance with the Chinese National Standard (CNS) A4 specifications (210 X 297 mm) _ 20 _ 309597 A6 B6 The Ministry of Economic Affairs Central Standards Bureau of the Ministry of Industry and Consumer Cooperation Du printed five, invention description (18) X drive also do Into the same positive and negative voltage group with the same absolute value (not necessarily a group) to drive the structure, thereby eliminating the need for switching to a relatively high voltage switch circuit 6 for switching to electrical KV1 and V4 3 3, and the value of the reference voltage applied to one end of the resistor 6 3 1 may also be any certain voltage. For example, the reference voltage can also be set at the midpoint of the voltages V 0 and V 5. In addition, the Y driver is made such that when the FR signal equivalent to the Y driver 12 in FIG. 6 changes, the non-selected voltage is switched from the mildew V 1 (or V4) to V4 (or VI), And made: when the FR signal changes, the circuit configuration method that forcibly does not cause it to produce a correction voltage (for example: a low voltage switch that short-circuits the resistor 6 31), the switch circuit 6 3 3 is no longer needed, and The value of the reference voltage applied to one end of the resistor 6 3 1 may also be any constant voltage. Furthermore, in this embodiment, although the correction voltage is added to the driving voltage waveform of the signal electrode, if an inverting amplifier circuit capable of inverting the polarity of the voltage output by the voltage amplifier circuit 632 is provided, When the output voltage is used as the correction voltage and this is added to the driving voltage waveform of the scan electrode, the same effect as in the second embodiment can also be obtained. (Fourth embodiment) Furthermore, the distortion of the output waveform of the Y driver and the voltage waveform on the scan electrode is caused by the current flowing through the Y driver and the scan electrode. And this current flows into the power supply circuit via the Y driver. Therefore, by detecting the current flowing through the power supply circuit, the distortion can be estimated. By this, you can also ----------------- II ------ install ------- 玎 ------ line and line- (please first Please read the notes on page f and fill out this page) This paper scale is applicable to the Chinese National Standard (CNS) A4 specifications (210 X 297 mm) -21-A6 B6 Central Government Bureau of Economic Affairs R-Consumer Cooperation Du Du. Invention talk (19) is used to change the voltage supplied to the X driver. The following is explained in detail with reference to Figure 7. Fig. 7 shows the configuration of this embodiment. In the figure, except for the power supply circuit 73, the other parts are the same as the structure of the first figure, and the detailed description is omitted. In addition, in the power supply circuit 73 of FIG. 6, the constituent elements other than the resistors 731, 732, and the differential amplifier circuits 733, 734 are the same as those of the power supply circuit 13 of FIG. 1, and the description thereof is omitted. The resistors 731 and 732 have a small resistance value as a resistor for detecting current, and cause a voltage proportional to the current flowing through this resistor to be generated at both ends of the resistor. The differential amplifier circuits 733 and 734 output the voltage difference between the resistors 731 and 732 to the voltage addition circuit. Based on this voltage difference, electrical voltages VO ·, V2 ·, V3 ·, V5 'are generated in the voltage addition circuits 137 to 140. After the operation of the foregoing configuration is performed, the same operation as the first embodiment is performed, and besides the same effect can be obtained, the reference voltage switching switch 132 and the input voltage switching originally required in the first embodiment The control circuit 133 and the input voltage switch 135 can be omitted, and the circuit can be simplified. In addition, the voltage output from the differential amplifier circuits 733 and 734 whose polarities are reversed is used as the correction voltage, and the same effect as in the second embodiment can be obtained by adding the driving voltage waveform to the scanning electrode. In addition, although the method for detecting the current of non-selective heating is shown in this embodiment, the distortion of each signal electrode due to the driving voltage waveform (non-selected voltage) on the scan electrode is as follows: All of them (please read the note 4 ^ -item and then 5 on the back! ^ Table page> — loaded. Ordered ·

Line K This paper scale is applicable to the SB home rubbing standard (CNS) A 4 specifications (210 X 297 mm) -22-308537 A6 B6 Printed by the Central Bureau of Standards of the Ministry of Economic Affairs ® Industrial and Consumer Cooperatives 5. Description of the invention (20) Signal electrode The voltage is switched from the lighting voltage to the non-lighting voltage, or the total current flowing through the signal electrodes when switching from the non-lighting voltage to the lighting voltage, for example: a resistor with a small value, etc. The current supplied to the X-driver 11 of Fig. 7 that is lit and that is not lit is detected. By adding the detected values, the drive voltage waveform generated on the scan electrode can also be estimated (not selected) Voltage), by which the correction voltage can be easily set and the same effect can be obtained. (Fifth embodiment) The first to fourth embodiments are used to eliminate unevenness and speckle on the display caused by the arrangement direction of the signal electrodes of the liquid crystal display panel. Here, an embodiment for eliminating display defects generated in the arrangement direction of the scanning electrodes of the liquid crystal display panel (hereinafter, such display defects will be referred to as horizontal stripe defects) will be described. The occurrence of this phenomenon of "bar defect J" is explained in more detail in Japanese Patent Application Laid-Open No. 2-89 filed by the applicant. Here, if it is briefly explained here, the display on each scan electrode There are more lights on the point, the capacitance of the capacitor made by the display point on the scan electrode becomes larger, and when the drive voltage waveform of the scan electrode is switched from the non-selected voltage to the selected voltage, it will be attenuated a lot. , So that the effective voltage applied to the display point on the scan electrode becomes smaller, thus generating horizontal stripe defects. That is, the amount of attenuation of the waveform when switching to the selection voltage determines whether there will be horizontal stripe defects. Therefore, a voltage detection electrode is formed on the substrate on which the signal electrode of the liquid crystal display panel is formed, and this voltage detection electrode is connected to the signal through the liquid crystal layer ----------------- 〈------ install ------ tr ------ line production (please read the precautions on the back and then this page) This paper size is applicable to the "National Standard (CNS) A 4 specifications ( 210 X 297 mm> -23-A6 3〇9S97 B6_ V. Description of invention ¢ 1) Electrode capacity junction , And detect the sum of the voltage changes of the scan electrodes, and estimate the attenuation on the scan electrodes from the results, and eliminate the horizontal bar defects on this display by changing the selection voltage supplied to the Y driver. This is explained in detail in Figure 8. Figure 8 shows the structure of this embodiment. In the circle, except for the liquid crystal display panel 10b and the power supply circuit 83, other parts are the same as those shown in Figure 1. The detailed description of the other parts is omitted. The image of the LCD panel 1 Ob in FIG. 8 is that a voltage detection electrode XD is newly added to the substrate 102 of the liquid crystal display panel 10 of the first circle. The voltage detection electrode XD 傺 如 圔It is generally provided on the opposite side of all scan electrodes Y1 ~ Y 6. As shown in Figure 8, 83 represents the power supply circuit, and the components other than 831 ~ 833 are the same as the mold source circuit 13 in Figure 1, so the description is omitted. .83 1 represents the inverting amplifier circuit image to invert the voltage output by the voltage amplifying circuit 6 3 2. And 8 3 2, 8 3 3 represents the adder Ye has the same as the adder 1 3 7 in Figure 1 Circuit configuration and function. Here, Figure 9 It shows the voltage output by the voltage amplifying circuit 6 3 2 when the liquid crystal display panel 10b is performing a display situation where the display points on the scan electrode Y 3 are more lit and the display points on the other scan electrodes are less lit. And the wedge type of the voltage waveform on each scan electrode. In the figure, 90 1 represents the voltage waveform output by the voltage amplifying circuit 632, and 902 ~ 904 represents the voltage waveform on each scan electrode Y2 ~ Y4. In addition, 9 0 2 ~ 9 04 is that it is assumed that no correction is added to the driving waveform of the scanning electrode ----------------- f ------ installed ------- 玎 ----- -Line β (Please read the note on the f-face first and then write this page >> The Central Standard of the Ministry of Economic Affairs is printed by the R-Consumer Cooperative Society. The paper standard selection is China National Standard (CNS) A 4 specifications (210 X 297 )-24-A6 B6 Printed by the Beigong Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs V. Invention Description (22) Voltage waveform at the time of voltage. Here, the voltage waveform 901 is the sum of the changes in the voltage waveforms of all the scan electrodes Y1 to 6, and the figure shows the portion where the selection voltage is sequentially applied to the scan electrodes Y2 to 4 in a switched manner. As shown in the ninth garden, when the scanning electrode applied with the selection voltage is switched from the scanning electrode Y2 to Y3, the electrical waveform 903 on the scanning electrode Y3 is greatly attenuated and becomes the selection voltage, which is output by the voltage amplification circuit 632 The voltage 901 also generates a fairly large split waveform of almost the same size. When the scanning electrode Y with the selective voltage is switched from the scanning electrode Y3 to Y4, the voltage waveform 904 on the scanning electrode Y4 becomes the selection voltage almost without attenuation, and the voltage output by the voltage amplifying circuit 6 3 2 9 ◦ 1 produces a smaller differential waveform. Here, the output of the electrical amplifier circuit 6 3 2 is that the inverting amplifier circuit 831 is inverted by the line polarity, and this is added as a correction voltage to the selection voltage in the adders 832, 833. Therefore, when the voltage waveform 903 on the scan electrode Y3 is greatly reduced to become the selection voltage, the selection voltage to which a larger correction voltage is added is added, and in fact it is corrected to be faster than Select the voltage. This makes it possible to prevent the occurrence of horizontal stripe defects, regardless of the number of lights on the display points on each scan electrode, which is almost the same as the reduction when switching from a non-selected voltage to a selected voltage. (Sixth embodiment) {Please read the parental note first and then write this page) 丨 Installation. Order · • Line f This paper size is applicable to China National Standard (CNS) A 4 specifications (210 X 2 mm) ) -25-A6 B6 Printed by the Central Standards Bureau of the Ministry of Economic Affairs ® Co-operative Fee Cooperative V. Description of invention ¢ 3) In addition, the distortion waveform of the output waveform of the Y driver and even the voltage waveform on the scan electrode is caused by the «current flowing through the Y driver and The green produced by the scanning electrode, when the pressure is selected and applied to a certain scanning electrode, when the display point on the scanning electrode has more lights, most of the voltage waveform will be greatly attenuated. This is because more current flows through the wire of the scan electrode. Therefore, it is possible to estimate the distortion by detecting the current flowing through the scan electrode, in other words, by detecting the current flowing through the portion used to generate the selection voltage of the power supply circuit. By this, it is no problem to change the voltage supplied to the Y driver. The following is explained in detail with the help of Figure 10. The first image shows the structure of this embodiment. In the figure, except for the power supply circuit 103, the rest is the same as the structure of FIG. 7 and the explanation is omitted. In addition, in the power supply circuit 103 of FIG. 10, the constituent elements other than the resistors 1031, 1032, the differential amplifier circuits 1034, 1034, and the adders 1035, 1036 are the same as the power supply circuit 73 of FIG. 7 and are omitted. Its description. The resistors 1031 and 1032 are resistors for picking up current with a small resistance value, and a voltage proportional to the current flowing through the resistor is generated at both ends. The differential amplifier circuits 1033 and 1034 are used to amplify the voltage difference occurring across the resistors 1031 and 1032 to an arbitrary multiple and output the voltage to the voltage addition circuit. The voltage addition circuits 1 0 3 5 and 1036 add some voltage differences to the voltages VO and V5 respectively to generate the voltages V〇 ′ and V5 *. Therefore, when the pressure is selected and applied to a scanning electrode, the scanning electrode (please read the note f on the back and then f this page)-丨 installation · order · .line (: This paper size is applicable to China National Standard (CNS ) A4 specifications (210 X 297 mm) -26-A6 B6_ printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs V. Invention Description (24) When the voltage waveform on the (24) is to be greatly attenuated, the resistors 1031, 1 032 Due to the large current flowing, the voltages VO ', V5 · become a voltage with a larger absolute value than the voltages V0 and V5 with respect to the non-selected voltage y. Therefore, the voltage waveform on this scan electrode is greatly reduced It is eliminated. By this, an effect that is different from that of the fifth embodiment can be obtained. (Seventh embodiment) In the third embodiment, a voltage detection is formed on the substrate on which the scanning electrode of the liquid crystal display panel is formed Electrode, this voltage detection electrode is combined with the signal electrode's capacitor through the liquid crystal layer, and the sum of the voltage changes on the signal electrode is detected, from which the distortion on the scan electrode is estimated to change the supply to X Driver voltage. However, If there are more scanning electrodes, in other words, if the length of each signal electrode becomes longer, the degree of voltage change on the part of the X driver close to each signal electrode and the part that it catches becomes different, sometimes It is difficult to accurately estimate the distortion on the scan electrode. In this case, it is possible to form a plurality of voltage detection electrodes, and appropriately divide the voltages detected by these voltage detection electrodes respectively, in other words To generate a correction voltage that uses these voltages as an appropriate function of the variable, and then add this correction voltage to the drive waveform of the signal electrode. The following will be detailed in Figure 11 Description. FIG. 11 is a configuration diagram of this embodiment. Except for the liquid crystal display panel 10c and the power supply circuit 13 in the figure, the configuration is the same as that in FIG. 1, and the description is omitted. The LCD panel 10c is as shown in the figure, it is the paper standard applicable to the Chinese National Standard (CNS) A 4 specifications (210 X 297 mm) One --------------- --Produce ----- install ------ order ------ line -ί (Please read the precautions on the back before writing the copy I) A6 B6 printed by S Industry and Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs V. Invention # (25) New on the substrate 101 of the LCD panel 10 in FIG. 1 The voltage detection electrodes YD1 and 2 are provided, and are arranged on the upper and lower sides so as to face all the signal electrodes XI ~ X6. Here, when the voltage changes on the signal electrodes XI ~ X6 occur on the scan electrodes Ying Ji is for each signal electrode when it is different, even if the width of the voltage detection electrode YD is the same, for example, it can be formed from left to right gradually widening 0 In Figure 1 1, 1 130 represents the power circuit Among them, the components other than 6311, 6312, 6321, 6322, and 1131 to 1 1 34 are the same as the power supply circuit 13 in FIG. 1, and the description thereof is omitted. The 6311 and 6312 are resistors, which form a differential circuit with capacitors composed of voltage detection electrodes YD1, 2 and their opposite signal electrodes X1 ~ X6, respectively. 6321 and 6322 represent voltage amplifying circuit images used to output the voltage generated by the electric detection electrodes YD1 and 2 respectively after reducing their impedance. In addition, this circuit must have a magnification of 1 times, and it can also be a non-inverting amplifier that can enlarge any multiple. From 1131 to 1134, the adder adds the voltages output by the two voltage amplifying circuits 6321 and 6322 to the voltages V0, V2, V3, and V5, and generates voltages vo'vs'vs'vs ·, respectively. Here, Fig. 12 shows a configuration example of the adders 1131 to 1134. In the figure, 1201 represents a resistor, 1202, 1 2 0 3 ye are two-input demultiplexing circuits formed by resistors, and 1204 is a voltage amplifying circuit composed of lotus arithmetic amplifying circuits. In addition, this paper scale is applicable to the Chinese National Standard (CNS) A 4 specifications (210 X 297 mm) _ 9β _ ------------------ ^ ----- installed ------ Subscribe ------ Yuan-ί (Please read the note on the back + ^ item before writing this page) ^ 09597 A6 B6 Printed by the Employee Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (6) The terminals Vhl and 2 are respectively input with the voltages output by the voltage amplifying circuits 6321 and 6322 in FIG. 11, and the terminal V ^ / is any one of the input voltages VO, V2, V3 and V5. The image of the terminal VcUt in FIG. 12 is the output of the voltage amplifying circuit 203, and the image corresponds to the voltages V0_, V2, V3_, and V5 in FIG. 11. Here, in FIG. 12, the voltages output by the voltage amplifying circuits 6321, 6322 input to the terminal Vin are approximately close to the differential waveform, so by connecting these voltages to the resistor 1201 and the capacitors 1202, 1 2 The terminals Vi „1 and 2 of the differential circuit composed of 0 3 can output a voltage approximately similar to the voltage of the terminals Vinl and 2 added to the voltage of the terminal Vm / from the lg voltage amplifying circuit 1204. Here, If the electrostatic capacitances of the capacitors 1 202 and 1 203 are made the same, the result is that the voltages at the terminals Vifll and 2 are equally weighted to the corrected voltage, in other words, they have been averaged. The capacitances of the two capacitors are made different values, for example, the capacitance of the capacitor 1203 is made smaller than the capacitance of the capacitor 1202, so that the contribution of the voltage change of the voltage detection electrode YD2 to the correction voltage can be increased. The electrostatic capacitance settings of 1 202 and 1 203 can be easily set by experiment. Furthermore, by setting the electrostatic capacitance settings of the capacitors 1202 and 1203 to the same first, for example, the The width of the voltage detection electrode YD1 is made smaller than the width of YD2, which can increase the contribution to the same correction circuit. Therefore, the same operation as in the third embodiment is carried out, but by applying the voltage to the paper size a National Standard (CNS) A4 specifications (210 X 297 mm) (please read the precautions before filling in this page) _Installed and ordered _ A6 B6 Printed by Beigong Consumer Cooperative of the Central Bureau of Economics of the Ministry of Economy V. Inventions Explanation (27) The detection electrode is pluralized, and the distortion generated on the driving waveform on the scan electrode can be detected more accurately, and the unevenness and speckle on the display can be more eliminated. In the fifth embodiment of the third embodiment, a plurality of voltage detection electrodes are provided on both sides of the left side of the substrate on which the signal electrodes are formed to face the scan electrodes Y1 to Y6, so as to be the same as the power supply unit The circuit configuration of this can achieve the same effect as that of this embodiment even for "bar defects". (Eighth embodiment) In the seventh embodiment, Ye is that a plurality of mold pressure detection electrodes are formed on the substrate on which the scanning electrode is formed of the liquid crystal display panel, and the voltage generated by these electric heating detection electrodes The electrical function as a function of complex variables is used as a correction voltage, but for example: the sum of the changes in the driving voltage waveform of the signal electrode on the left side of the liquid crystal display panel is completely different from the sum of the changes in the driving voltage waveform of the signal electrode on the right side At the time, the method of adding different correction voltages to these signal electrodes can further eliminate the unevenness and spots on the display. Therefore, the complex value correction voltage is generated from the voltage change obtained from the plurality of voltage detection electrodes. For these correction voltages, each signal electrode or each scan intersecting the voltage detection electrode that can generate a certain correction voltage The driving voltage waveform of the electrode is separately added with its correction voltage, thereby making it possible to further correct the unevenness and spots on the display. The following is explained in detail with the 13th meeting. Fig. 13 shows an example of the structure of this embodiment. (Please read the notes on the back before filling this page)

K — 装 · 定 · ^ This paper scale is applicable to the Chinese National Standard (CNS> A 4 specifications (210 X 297 mm) -30-A6 B6 Printed by W Ministry of Economy and Industry Cooperative Central Standard V. Inventive Pain 8 ) In the figure, the Y driver 12 has the same structure as the Y driver in FIG. 1, and its operation is the same, and the detailed description thereof is omitted here. In FIG. 13, 10d is a liquid crystal display panel, and the voltage detection electrodes YD1 and 2 are newly added to the substrate 101 of the liquid crystal display panel 10 in FIG. 1, and each is connected to each other as shown in the figure. It is located on the opposite side and is located on the upper side to face a part of the signal electrodes XI to X6. Here, the opposing portions of the voltage detection electrodes YD1, 2 are shaped like a wedge in this embodiment and share some signal electrodes (in this embodiment, the signal electrodes X2 to X5) and cross. However, it is not necessary that the opposite parts share the same signal electrode and cross. Furthermore, the two voltage detection electrodes YD1 and 2 may not be separated. That is, it can also be short-circuited. The 11L, 11M, and 11R X-drivers have the same structure and operation as the X-driver 1 in Figure 1 except that the number of bits of each internal circuit is different. The X drivers 11 1 L, 11 M, and 11 R are respectively supplied with voltages composed of different voltages, and output driving voltage waveforms according to the voltages. 133 is like a power supply circuit. Except for 1331 to 1333, the other configurations and operations are the same as those of the power supply circuit 1130 in FIG. 11, and the description is omitted. 1331 and 1333 are the adder groups. The image composed of the adders shown in Figure 2 is set to correspond to the voltages V0, V2, V3, V 5 〇1 332 Vulnerable adder group. 1 The composition of the adder shown in the figure 2 is set to correspond to the voltage v〇, V2, V3 (please read the precautions on the back before filling this page)

— V

T

K This paper scale is applicable to the Chinese National Standard (CNS> A4 specifications (210 X 297 mm) -31-8X Consumer Cooperative Printed by the Central Bureau of Standards of the Ministry of Economic Affairs «A6 ___ B6_ V. Description of Invention <; 29), V 5 〇 The voltages output from the adder groups 1331, 1332, and 1333 are respectively supplied to the X drivers 11L, 11M, and 11R. Due to the above-described configuration, the voltage detection electrodes YD 1 will generate signals from the signal electrodes X 1 to X5. The sum of the voltage changes of the driving voltage waveform. Here, the front end of the voltage detection electrode YD1 is formed into a wedge shape, and from the signal electrode XI toward X5 is closer to the side of the X5 Japanese side, the aggravation of the change in the driving voltage waveform The smaller the weight. Similarly, although the voltage detection electrode YD2 will also generate the sum of the voltage changes of the driving voltage waveform from the signal power X1 to X5, it is closer to X1 from the signal electrode X5 toward X1 The smaller the weight of the voltage change of the driving voltage waveform on this side. Therefore, the voltage amplifying circuit 6321 is mainly like the sum of the voltage changes of the driving voltage waveform that outputs the signal electrode on the left side of the LCD panel 1 Od The voltage amplifying circuit 6322 mainly outputs the sum of the voltage changes of the driving voltage waveform of the signal electrode on the right side. Here, the output voltage image of the voltage amplifying circuit 6321 is supplied as the correction voltage to the adder group 1331 and the adder group 1331. The output is supplied to the X driver 1 1 L. Similarly, the output voltage of the voltage amplifying circuit 6 3 2 2 is supplied as the correction voltage to the adder group 1 333, and the output of the adder group 1 333 is supplied to the X driver 11R The output of the voltage amplifying circuits 6321, 6322 is supplied as two correction voltages to the adder group 1 3 3 2, and the adder group 1 332 is the average correction voltage with these two correction voltages added. The paper scale is applicable to China S Home Standard (CNS) A 4 specifications (210 X 297 mm) _ _ ----------------- C ----- installed --- --- Subscribe --- Line-Γ (please read the notes on the back before filling in this page) A6 B6 Printed by the Central Standards Bureau of the Ministry of Economic Affairs S, Industry and Consumer Cooperatives V. Yu Ming • Description 00) The output is scraped to the X driver 11M. Due to the aforementioned operation, the driving of the signal electrode on the left side of the liquid crystal display panel 10d ® pressure wave The middle image is added: the correction voltage generated by the sum of many changes in the driving calendar waveforms according to the changes in the driving voltage waveforms of the signal electrodes attached to the left side of the signal; and the middle bar of the driving voltage waveforms of the signal electrodes on the right side are added: Many correction voltages are added to the change of the pulse voltage waveform of the signal electrode on the right side, and the correction voltages averaged left and right are added in the center. Therefore, it is almost the most appropriate to add the drive voltage waveforms of the respective signal electrodes separately The voltage is corrected to further eliminate the unevenness and spots on the display. In addition, in this embodiment, the adder groups 1331 and 1333 are the adders shown in FIG. 2, but the adder shown in FIG. 12 may also be used, and the input from the adder group 1332 is the same as that of the adder group 1332. The two outputs of the low voltage amplifying circuits 6321, 6322, and the output capacitances of the two output voltages are appropriately set using the capacitances of the capacitors 1202 and 1203 in FIG. 12 to output. In this embodiment, although the number of different correction circuits M is set to 3, it can be appropriately increased or decreased according to the size of the liquid crystal display panel. Furthermore, although the method of using a voltage detection electrode is shown in this embodiment, for example, for each X driver 11L, M, and R in FIG. 13, a small-value resistor is used to detect the detected The current of the lighting voltage and the non-lighting voltage supplied to these X drivers, and by applying this paper standard to the national standards of the troubled countries (CNS> Τ 4 specifications (210 X 297 mm) (please read the notes on the back Matters will be written on this page again) Binding, Ordering, and Threads _ Printed by the Central Sample Bureau of the Ministry of Economic Affairs Employee Consumer Cooperative Society s〇9S97 A6 ____B6 V. Invention Saying 01) The method of adding these currents can also be obtained with this A plurality of correction voltages are the same in the embodiment, and the method of using the value correction voltage to perform the correction can also obtain the same effect as the present embodiment. As mentioned above, by adding the additional "correction voltage" into different correction voltages due to the different positions of the signal electrodes on the liquid crystal display panel, it can further solve the unevenness and spots on the display . (Ninth Embodiment) In the eighth embodiment, a plurality of voltage detection electrodes are formed on the substrate on which the scanning electrodes of the liquid crystal display panel are formed, and the voltage generated at these voltage detection electrodes is used as a plurality of variables The electric K of the function is used as the three correction voltages, but another method can be used, for example: forming a voltage detection electrode, and the voltage generated from the voltage detection electrode generates three correction voltages, A certain correction voltage is added to the driving voltage waveform of each signal electrode. For example: according to the experimental results of the applicant of this case, when the terminal of the scanning electrode used to apply the driving voltage waveform to the liquid crystal display panel is on the left, the voltage obtained from a voltage detection electrode is slightly increased. When the ground-amplified correction voltage is applied to the signal electrode on the left side of the LCD panel, and the greatly amplified correction voltage is applied to the signal electrode on the right side of the LCD panel, the density on the display can be further eliminated. Evenness, spots and other phenomena. Therefore, this value structure is shown in Fig. 14, and Fig. 14 is an example of the structure of this embodiment. In the 1st figure, 10a series LCD panel, 12 series YA driver < please read the note of 1 ^ face + item before filling out this page> 丨 Installation_ Order-This paper size is suitable for China National Standard (CNS) A4 specifications (210 X 297 mm) -34-A6 B6__ printed by the WT Industrial and Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs V. Invention descriptions (issued), all of which have the same structure as in Figure 6, and 1 1L, M, R are The X drive has the same structure as in Fig. 13. In addition, 143 is a power supply circuit, except that 1431 to 1433 are the same as the power supply circuit 63 of FIG. 6. Therefore, the explanation is omitted. In Fig. 14, 143 1 to 1433 are adder groups, which are each composed of adders shown in Fig. 2. However, the capacity of the capacitor 2 0 2 in FIG. 2 is smaller when the adder group 1 4 3 1 is larger, it is larger when the adder group 1 4 3 3 is, and the median value is 1 4 3 2. . Also, even if the voltage applied to the terminal V ^ is the same, the added correction voltage image is set such that the adder group 1431 is the smallest, the order is 1432, and 1433 is the largest. Because of the above-mentioned structure, a plurality of correction voltages can be generated from the voltage obtained by the voltage detection electrode, and a correction voltage can be added to the drive voltage waveform from the drive terminal of the scan electrode. This correction voltage is further away from the signal electrode The greater the addition, the more unevenness and spots on the display can be eliminated. (Tenth Embodiment) In the third embodiment, although the shape of the voltage detection electrode is not touched in detail, the shape of the voltage detection electrode can be changed according to the shape of the liquid crystal display panel, so that Further eliminate the unevenness and spots on the display. This will be explained using Figure 15 below. Figure 15 is the paper standard applicable to the Chinese National Standard (CNS) A 4 specifications (210 X 297 mm) _ 35-(please read the precautions on the back before writing this page) 丨 Installation · Order-.Thread ( A6 B6 Printed by the Ministry of Economy, Central Bureau of Standards, R Industrial and Consumer Cooperatives V. The Marriage Theory (33) A diagram showing an example of the configuration of a liquid crystal display panel. In the figure, it is compared with the liquid crystal display panel 10a in Figure 14 except The shapes of the electrodes are different except for the others. Here, the shape of the scan electrodes Y1 to Y6 is the same as the shape on the liquid crystal display panel 10a, and the image of the signal electrodes XI to X6 is alternately formed with the supplied driving voltage. Terminal. (This terminal is formed on the odd-numbered signal electrodes of XI, 3, and 5 in Figure 15.) Here, the voltage detection electrode YD is formed on its upper part to cross each signal electrode. The voltage detection electrode YD image is formed to have a smaller width at the portion crossing the odd-numbered signal electrode and a larger width at the portion crossing the even-numbered signal electrode. The voltage detection electrode YD is formed as The above-mentioned shape. With this, the driving electric The capacity combination of the signal electrode of the terminal and the electrical IS detection electrode YD becomes smaller, and the capacity combination of the signal electrode and the voltage detection electrode YD farther from the terminal applied with the driving voltage becomes larger. Therefore, the voltage is picked up The position of the electrode YD is based on the change of the driving voltage waveform on the odd-numbered signal electrode with less attenuation, and the voltage detection electrode YD is generated with a smaller emphasis division to produce the divided voltage, according to the even-numbered with greater attenuation The change of the driving voltage waveform on the signal electrode causes the voltage pick-up electrode YD to generate a differential voltage with a larger weight. Therefore, for the voltage detection electrode YD, the strip can be evenly taken away from the applied driving voltage The voltage changes of the signal electrode of the waveform terminal and the signal electrode close to the terminal. This can more accurately predict the distortion occurring on the scan electrode, and thus can generate a more correct correction voltage, which can eliminate the display. Unevenness and spots on the surface. ----------------- X—— 装 ------ 訂 -------- 线 K (Please read the back side first Note the Ϋ item and then write this page > reference paper ruler Du Yun uses China's National Standards (CNS) Grade 4 specifications (210 X 297 commonweed) 309597 A6 B6 Central Bureau of Standards of the Ministry of Economic Affairs * 5 Industrial and Consumer Cooperatives Printed V. Invention Ut Ming (34) (the first 11 examples) In the third embodiment, the voltage detected by the voltage detection mold electrode is amplified by a certain magnification as the correction voltage. Here, the voltage difference between the voltage detection electrode and the opposite signal electrode It is about OV. However, the voltage difference between the actual scan electrode and the signal electrode facing it is only a few V in terms of effective voltage conversion. Generally speaking, if the effective voltage applied by the liquid crystal is larger, the induced electric power It also gets bigger. This phenomenon means that the more the display points of the liquid crystal display panel are, the more the electrostatic capacity of the capacitor made by the liquid crystal display panel becomes larger. Therefore, even if the sum of the voltage changes of the drive waveforms of the signal electrodes is the same, the drive voltage waveforms on the scan electrodes cause more distortion. However, the degree to which the voltage detection electrode is combined with the capacity of the signal electrode facing it is not affected by the number of displays. It is still maintained for a certain reason, because the number of display lights indicates that the correction voltage becomes insufficient. Therefore, the positive voltage can be increased or decreased according to the number of displayed lighting points, and the display that is not affected by the number of lighting points can be displayed without unevenness on the display. The following will use Figure 16 to illustrate this value. Fig. 16 shows a configuration example of this embodiment. In the figure, except for the power supply circuit 163 and the lighting point count circuit 164, the other configurations are the same as the configuration of FIG. 6, so the explanation is omitted. 1 64 in Fig. 16 represents a lighting point counting circuit, which is composed of a counting circuit 1 64 1 and a latch circuit 1 642. The counting circuit 1641 is synchronized with the CK signal. When the data signal is a 1 #, the counting is performed, and the count value is sent to the latch circuit synchronously with the DI signal (please read the note on the back and write this page).丨 Line. This paper scale is applicable to China National Standard (CNS) A4 specifications (210 X 297 mm) -37-A6 B6_ printed by the SK Industrial and Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs V. After the invention, P5) 1 642, At the same time, the count value is reset to zero before starting counting. The output of the latch circuit 1 642 is sent to the variable amplifier 1 6 3 1 163 of the power supply circuit 1 63. The power supply circuit is represented by 163, and the configuration other than 1631 is the same as the configuration of FIG. 6 and is omitted. Its description. 1 63 1 means that the variable amplifier is a kind of amplifier circuit whose amplification rate becomes larger when the value of the lighting point counting circuit 1 64 becomes larger. An example of the configuration of this circuit is shown in Figure 17. In Fig. 17, 171 represents a lotus amplifier, 172 to 175 are resistors, the resistance value of 173 is half of 174, and the resistance value of 174 is half of 175. 176 ~ 178 are open reeds. The circuit is connected with each resistor 172 ~ 175 in parallel. In this embodiment, although there are three such resistors and switch circuits, this number can be increased or decreased as appropriate. Vm / and terminal pins are respectively connected to the output of the switch circuit 603 and the output of the voltage amplifying circuit 632 shown in FIG. Therefore, a non-inverting amplifier circuit having an amplification ratio proportional to the ratio of the resistance value of the resistor 1 7 2 and the resistance value between the resistor 1 7 3, 1 7 5 is formed, and the voltage of Vm / terminal is As a reference, the voltage input to the V IN terminal is amplified at this value and then output. Here, the switch circuits 176 to 178 are the binary digit values of the complex digits output by the lighting point counting circuit 164 to control ◦ Ν or ◦ F F. That is, when the binary value is a 1 〃, it is ◦ F F, and when it is a 0 〃, it is Ο Ν. Furthermore, the upper numerical value controls the switching circuit 1 7 8, and the lower numerical value controls the switching circuit 1 7 6. Hereby, (please read the precautions on the back ¾ before filling in this page) Binding-Order · This paper size is applicable to China National Standard (CNS) A 4 specifications (210 X 297 mm) -38-Central Bureau of Standards, Ministry of Economic Affairs 8 309597 A6 _B6 printed by the Industrial and Commercial Co-operative Co., Ltd. V. The invention says 06) The larger the value, the greater the resistance between the resistors 173 and 175. Therefore, the greater the number of lighting points, the greater the magnification. Due to the aforementioned structure, the more the display points of the liquid crystal display panel 10 a are turned on, the larger the correction power becomes, and the display can be performed without being affected by the number of lighting points. Display of unevenness. (Twelfth Embodiment) In the fourth embodiment, by detecting the current flowing in the unselected voltages (VI, V4) in the power supply circuit 73, the correction voltage is added to the voltage supplied to the X driver 11, but The correction voltage may be added to the voltage supplied to the Y driver 12. This will be explained in Figure 18 below. Figure 18 shows an example of the structure of the present embodiment. In the figure, except for the power supply circuit 183, the other parts are the same as the configuration of the first round, and the description thereof is omitted. On the other hand, 141, OP2, and O P 3 in the power supply circuit 183 are the same as those shown in the same figure in FIG. 1. 1810 and 1840 are electrical calendar correction circuits for adding the correction voltage to the voltages VI and V4, respectively, and the image is provided between the voltage dividing circuit 1 3 1 and the Y driver 12. The voltage correction molds 1 8 1 ◦, 184 ◦ have the same circuit configuration. Figure 19 shows a specific configuration example of the voltage correction circuits 1810 and 1840. Here, in the twelfth embodiment to the sixteenth embodiment to be described later, although the period in which the voltage VI is used in accordance with the FR signal and the non-selected voltage is described, the period in which the voltage V4 is used is also the same . In Figure 19, the Vin terminal is used to input the voltage VI (or V4) (please read the note on the back ^ * · item before writing this page) Binding · Order · This paper standard is applicable to the Chinese National Standard (CNS ) A 4 specifications (210 297 mm) -39-A6 B6 printed by the 8th Industrial and Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 5. The description of the invention is divided into 7) terminals. 1911 represents a resistor for current detection, and a voltage proportional to the sum of the currents flowing through the scan electrodes applied with the non-selected voltage is generated at both ends of the resistor. This voltage Ye is applied to the inverting amplifier circuit 1 9 1 2 composed of the operational amplifier 1 9 1 3, the resistors 1914, and 1915. By setting the amplification factor of the inverting amplifier circuit 1 9 1 2 to an appropriate value according to the resistance values of the resistors 1 9 1 4 and 1 9 1 5, the output voltage of the inverting amplifier 1 9 1 2 can be made (This is regarded as Vd) and the voltage on the non-selective scan electrode that is distorted by the influence of the transient current is approximately equal. The operational amplifier 1916 will be used to make both the voltage VI 'applied to the inverting input of the lotus amplifier 1 9 1 6 and the voltage sent from the Vt terminal applied to the non-inverting input become equal voltages. The voltage (this is regarded as Vc) is output to the Y driver 12. Due to the above configuration and the above operation, even when the transient current flows, the voltage and the voltage VI applied to the scan electrode of the non-selected voltage (Or voltage V4) can always be kept at the same voltage. As described above, by detecting the current flowing through the non-selected voltages (voltages V 1 and V 4) in the power supply circuit, the corrected voltage is added to the supply Y The non-selected voltage of the driver 12 can suppress the voltage fluctuation on the scan electrode applied to the non-selected electric ®, and can easily solve the unevenness of the display on the display with a simple structure like the first embodiment Phenomenon. (1st to 3rd embodiment) The voltage correction circuits 1810 and 1840 of the 12th embodiment ------ Subscribe ------ ^ (Please read the notes on f and then write this page) (CNS) A 4 specifications (210 X 297 mm) -40-s〇9S97 A6 B6 Central Standard of the Ministry of Economic Affairs is printed by the R-Consumer Cooperative. V. The invention says that the circuit structure (38) does not necessarily have to be as The structure shown in FIG. 19 can also be made into other circuit structures. Here, the second ◦ image shows an example of another kind of circuit structure of the voltage correction circuit. Pseudo 1911 to 1916 in FIG. 20 correspond to the 19th The same figure number in the figure. 2017 Ye capacitor, by combining with the resistor 1914, the time fixed number of the inverting amplifier circuit 1 9 1 2 is set to 7: 1. Similarly, 20 1 8 and 20 1 9 respectively use resistance The capacitor and capacitor set the time constant r2 of the lotus-calculated amplifying circuit 1916. Because of the above-mentioned configuration, the value of the constant time r1, r 2 and the amplification factor described in the 12th embodiment Set to an appropriate value, even if a transient current flows in the voltage VI (or V4), the effective voltage value of each 1 LP signal cycle of the voltage applied to the scan electrode with the non-selected voltage can be changed to the voltage V 1 is equal, so it has the same effect as the twelfth embodiment. Furthermore, enlarge The output voltage of circuit 1913 and 1 9 1 6 has a small voltage change per unit time. Therefore, a relatively low-cost lotus amplifier can be used, and the stability of the circuit can also be improved. In addition, in this implementation The example is described for the case of detecting the current flowing through the non-selected voltage in the power supply circuit, but when the current of the selected voltage is detected, when the correction voltage is generated by using electricity to the detection electrode, The same effect can also be obtained by adopting the same circuit configuration. (The 14th embodiment) In the 12th and 13th embodiments, although there is electricity with a small resistance (please note first and then f this page)-Binding · Binding. Line f This paper size is applicable to the Chinese national frame Standard (CNS) A4 specifications (210 X 297 mm) -41-A6 B6 Printed by the Central Standards Bureau of the Ministry of Economic Affairs, S Industry and Consumer Cooperatives 5. Description of invention (39) A resistor to detect the current flowing through the power circuit, However, it is not necessary to use a resistor when detecting the current, but other components can also be used. Here, the voltage correction voltage used to replace the voltage correction voltage 19 10, 1 940 in FIG. 19 is as shown in FIG. 21 The specific configuration example of the voltage compensation voltage when the transformer is used as the component. The lotus calculation amplifying circuit in Figure 21 1 9 1 6 is the same as the figure in Figure 19. 2 1 20 is the transformer, and the voltage is 1 The secondary winding 2121 and the secondary winding 2122. Here, by setting the ratio of the number of windings of the primary winding 2121 and the secondary winding 2 122 to an appropriate value, the same as in the first and second embodiments can be obtained In addition, it can also be used to reduce the number of components. Here, Figure 22 pseudo display In this embodiment, a configuration example of another voltage correction circuit in which a resistor and a capacitor are added. In FIG. 22, 2223 and 2224 are resistors and capacitors added to the voltage correction circuit. The time constant r 2 of the lotus-calculation amplifier circuit 1 9 1 6 can be set for the resistor and the capacitor, and the same effect as in the first embodiment can be obtained. (15th embodiment) In the 12th embodiment to the first embodiment In the 14th embodiment, although the non-selected voltage supplied to the Y driver 12 is changed "in real time", for example, in the aforementioned twelfth embodiment, the voltage can be corrected by the voltage path 18 10 1, 1840 is made into a voltage correction circuit as shown in FIG. 23 to obtain the same effect as the twelfth embodiment, and can be applied to the national standard (CNS) A 4 specifications (210 X 297 PCT) -Δ9--------------- X ------ installed ------ ordered ------ 4 (please read the notes on the back first (Fill in this page again) Α6 Β6 5. The invention says that suction (40) makes the operation of the voltage correction circuit more stable. That is, as shown in Figure 23, the A switchable capacitor circuit or extended element 2325 such as a CCD is inserted between the circuit 1912 and the lotus amplifier circuit 1916, so as to extend the correction voltage within the same LP signal period for a certain period of time before adding it to the non-selected voltage, and The method of supplying it to the Y driver 12 can also obtain the same effect as the first embodiment. Because of the non-immediate hunger, the corrected voltage circuit becomes less susceptible to vibration and stable operation can be obtained. As for the method of inserting such a delay element, it can also be applied to Embodiments 13 and 14, and the effect of synchronism can be obtained (you may read the first note of $ 1 and then write this page). Bureau R Industrial Consumer Cooperative Printing Department (the 16th embodiment) can also detect the non-selected voltage in the power circuit that occurs during each 1LP cycle, when the LP1 cycle starts, or after a predetermined time elapses after the start The instantaneous current value or the peak current value flowing in, and the corrected voltage corresponding to the detected current value is regarded as a certain corrected voltage during the same LP period and added to the non-selected voltage (VI or V4) in. The following is illustrated with Figure 24. FIG. 24 pseudo-shows the configuration of the voltage correction circuit of FIG. 18. 1911 to 1 9 1 5 are the same as those with the same drawing number in Figure 19. In FIG. 24, 2426 is a sample-and-hold circuit, which is based on the signal that delays the LP signal for a specific time, and the voltage Vd output from the inverting amplifier circuit 1 9 1 3 corresponding to the transition current is calculated by the lotus calculation amplifier circuit. 1 9 1 6 The output voltage Vc is used as a reference to sample and save the circuit. Aka order_

.Line X This paper scale is applicable to China National Standard (CNS) A4 specification (210 X 297 mm) -43-A6 B6 Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy V. Invention description (41) Save dV = Vd -The voltage of VC. Therefore, since Vc + dV is added to the non-inverting input of the lotus amplifier 1916, the voltage defined by VI (or V4)-dV is output during the same L P period. As a result of the above action, the saved voltage Vd is proportional to the voltage applied to the scanning electrode of the non-selective electrode, and the effective voltage of one 1LP cycle, VI (V4), is amplified by inverting The amplification of the circuit 1 9 1 2 is set to an appropriate value. Even if a transient current is generated, the effective voltage of each 1LP cycle of the voltage applied to the scan electrode of the non-selected voltage can be equal to the voltage VI (V4) Therefore, the same effect as the twelfth embodiment can be obtained. In addition, in this embodiment, although the case where the current of the non-selected voltage flowing in the power supply circuit is detected is described, it is the case where the current of the selected voltage is detected, and further the correction voltage is generated by using the voltage detection electrode In the case of, the same effect can also be obtained by adopting the same circuit configuration. (17th embodiment) In the aforementioned 16th embodiment, the voltage on the scan electrode to which the non-selected voltage is applied is changed by changing the correction voltage applied to the non-selected voltage supplied to the Y driver 12 Or the correction of the actual value of the voltage, although not described in detail, but for example: by detecting the non-selective voltage of the power circuit as in the 16th embodiment, the current corresponding to this detected The time of the value can be added to the predetermined correction electronic nickname (please read the note ΦΗΙ *. On the back and fill in this page >>

I-Loading · Ordering · The paper size is in accordance with Chinese National Standard (CNS) A4 specifications (210 X 297 mm) 44-Printed by the Ministry of Economic Affairs, Central Standard, Jugong 8 Consumer Cooperatives 309597 A6 _____B6 V. Description of invention (42) Obtained The same effect as the sixteenth embodiment. Also, this is similar to the sixteenth embodiment in that the current of the selected voltage is detected, and further, in the case where the correction voltage is generated using the voltage detection electrode, the same effect can be obtained by adopting the same circuit configuration. (Embodiment 18) Prior to this, only the scanning electrode and the signal electrode were applied to the liquid crystal display panel in which the driving voltage waveform was applied from one end together. However, regarding one of the scanning electrode and the signal electrode or The liquid crystal display panel having a structure in which both sides add the driving voltage waveforms at both ends can also be adapted to the foregoing embodiment. In addition, in an embodiment in which a voltage detection electrode is provided to generate a corrected voltage, it may be formed that a terminal for extracting the voltage of the voltage detection electrode is not only from one of the terminals, but also from both ends to detect the circuit configuration Or, it may be on the side of the drive voltage terminal having the scan electrode and the signal electrode and the terminal on which the voltage detection electrode is formed on the opposite side. In addition, the voltage detection electrode may be formed beside any one of the upper, lower, left, and right sides, and as long as the display does not interfere, even if it is formed in the center. In addition, from the first embodiment to the eighteenth embodiment, a combination of several of them is used. For example, by combining the third embodiment and the fifth embodiment, the display of the vertical white line and the horizontal white line can be solved simultaneously. On the defect. Furthermore, in the first embodiment to the eighteenth embodiment, it is aimed at a plurality of signal electrodes and a plurality of scanning electrodes having a group on a pair of substrates. Page) .Installed. ^ This paper scale is applicable to the Chinese National Standard (CNS) A 4 specifications (210 X 297 common potion) -45-A6 B6 Printed by the Central Standards Bureau of the Ministry of Economic Affairs 8 Industrial and Consumer Cooperatives 5. Description of the invention (43) The case of a liquid crystal display panel that intersects and becomes the form of a display point has been described, but for a pair of substrates, there are two sets of complex value signal electrodes and two sets of complex value scan electrodes crossing each other to form a form of display points In the case of a liquid crystal display panel that is a dual-screen driven LCD panel, the correction voltage corresponding to each screen can also be added to the power supply voltage of the X or Y driver used to drive each screen, and Broadcast the same effect. And at this time, the signal after the FR signal supplied to the X or Y driver used to drive one side can be reversed to serve as the X or Y driver used to drive the other side's picture If the FR signal is supplied in a way, a part of the circuit configuration can be shared, and the circuit configuration can be simplified. That is, when the selection voltage, non-selection voltage, lighting voltage, and non-lighting voltage of one of the screens use V 0 (5), V 4 (1), V 5 (0), and V 3 (2) respectively At the time, the other party's screen uses V5 (0), VI (4), V0 (5), V2 (3). For example: when the method of adding a correction voltage to the non-selected calendar, when one of them When using VI in the screen, add the correction voltage corresponding to the daytime display of one of the VI to the Y driver for driving this value screen, and add the screen corresponding to the other in V4 The corrected voltage of the display can be supplied to the Y driver used to drive this screen. Therefore, the voltage circuit can be corrected together. (19th embodiment) In addition, in this manual, in order to simplify the description, although it is mainly cited (please read the precautions on the back and then fill out this page) _installation · order · This paper standard is applicable to China National Oak Standard (CNS ) A4 specifications (210 X 297 mm) 46-309597 Α6 Β6 Printed by the Codex Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs V. Invention description (44) A voltage average driving method is used as an example to explain, but even for other Various driving methods such as: the driving method in which the voltage applied to the signal electrode changes while the selection voltage is applied to the scan electrode (for example: the time that the lighting voltage and the non-lighting power M are added increases or decreases The meaning of "harmonic display method using pulse width modulation), a driving method of simultaneously applying a selection voltage to a plurality of scan electrodes, and supplying a drive voltage composed of many voltage levels to scan electrodes or signal electrodes The method of driving the waveform, etc., the above-mentioned embodiments also have the effect of solving the lack of display. (20th embodiment) It is necessary to have a display function Powerful voltage devices such as personal computers, word processors, electronic manuals, etc. can also improve the display quality of electronic devices by using various display devices from the first embodiment to the nineteenth embodiment. [Effect of the invention] As described above, by detecting the change in current or the change in current in a certain part of the liquid crystal display device bar, it is assumed that the distortion occurred on the electrodes of the liquid crystal display panel, thereby generating a correction voltage, and By adding this correction voltage to the driving voltage waveform, it is easy to change the defects such as unevenness and speckle on the display. That is, it is no longer necessary to calculate the atypical circuit from the display data, and it is extremely simplified. The circuit configuration is to provide a viable and high-quality LCD display device, which in turn makes an electronic device using such a display device '....-- ·., (Please fill in the item on the Htwe page before filling in the clothing page >. Binding · Order. This paper scale is applicable to the Chinese National Standard (CNS) A4 specifications (210 X 297 mm) -47-A6 __B6_ printed by the Beigong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy V. Description of Invention (f5) The display part of the device tends to be of high quality, and at the same time, it can be realized to be small and light. By detecting the voltage change or current change of a certain part of the liquid crystal display device bar, it is assumed that what happened on the gate of the liquid crystal display panel The distortion and the resulting correction voltage can improve the defects such as unevenness and spots on the display regardless of any driving method used to drive the liquid crystal display panel. [Simple description of the drawing] Figure 1 It is a configuration diagram of the liquid crystal display device of the first embodiment. FIG. 2 is a diagram of a specific configuration example of the electric scraper addition circuit of the first embodiment. FIG. 3 is a signal electric power for driving the liquid crystal display device of the first embodiment. Fig. 4 is a voltage waveform diagram illustrating the operation of the first embodiment. Fig. 5 is a diagram showing a specific configuration example of the liquid crystal display device of the second embodiment. Fig. 6 is a diagram of a specific configuration example of the liquid crystal display device of the third embodiment. Fig. 7 is an example of the specific configuration of the liquid crystal display device of the fourth embodiment. Fig. 8 is a diagram of a specific configuration example of the liquid crystal display device of the fifth embodiment. Fig. 9 is a waveform diagram of the actuating pressure in the fifth embodiment of Aming. Figure 10 is an example of the configuration of the liquid crystal display device of the sixth embodiment (please read the precautions on the back and then fill out this page) i pack and order. • The size of the line paper is applicable to the national standard (CNS > A4 specifications (210 X 297 mm) -48-309597 A6 B6 Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy V. Description of invention (46) -Jy IB} Garden Ο Figure 1 1 is the liquid crystal of the seventh example A specific configuration example of the display device is shown in Fig. 12. Fig. 12 is a fishy configuration example of the voltage addition circuit of the seventh embodiment-½ | S | Fig. 13 is a specific configuration example of the liquid crystal display device of the eighth embodiment Fig. 14-4 is an example of the configuration example of the liquid crystal display device of the ninth embodiment. Fig. 15 is a diagram of a specific configuration example of the liquid crystal display panel of the tenth embodiment. Fig. 16 is the first Fig. 17 is a diagram of a specific configuration example of the liquid crystal display device of the first embodiment. Fig. 17 is a diagram of a specific configuration example of the variable amplifier of the eleventh embodiment. Fig. 18 is a specific structure of the liquid crystal display device of the 12th embodiment Fig. 19 is a diagram of a specific configuration example of the voltage signal circuit of the 12th embodiment Fig. 20 is a diagram of a specific configuration example of the voltage signal circuit of the 13th embodiment. Fig. 21 is a diagram of a specific configuration example of the voltage signal circuit of the 14th embodiment. Fig. 2 2 is a 14th embodiment The specific paper size of the other voltage correction circuits is applicable to the Chinese National Standard (CNS) A 4 specifications (210 X 297 mm) ~ 49 ~ (please read the precautions on the back and then fill out this page). Install · Threading ^ 09597 A6 B6 Printed by the Central Standards Bureau of the Ministry of Economic Affairs Xinggong Consumer Cooperative V. Description of the invention (47) A configuration example. Figure 23 is a specific configuration example of the voltage correction circuit of the fifteenth embodiment. Figure 24 is the 16th A diagram of a specific configuration example of the voltage correction circuit of the embodiment. [Explanation of drawing numbers] 10: liquid crystal display panel 101, 102: —substrate Y 1 ~ Y 6: scan electrode X 1 ~ X 6: signal electrode 1 1: Signal electrode drive circuit (X driver) 1 1 1: Shift register circuit 112: Latch circuit 1 1 3: Analog switch circuit 12: Scan electrode drive circuit 1 2 1: Shift register circuit 1 2 2: Analog switch circuit 1 3: Power supply circuit 1 3 1: Voltage dividing circuit R 1 ~ R 5: Resistor OP 1 ~ 0P4: Voltage amplifying circuit 132: Reference voltage switching switch 1 33: Input voltage switching control circuit (please read the precautions on the back before filling in this page) -Installed "Order-This paper size applies to China B Home Standard (CNS) A 4 specifications (210 X 297 mm) -50-A6 _B6_ 5. Description of the invention (48) 1 34: Input voltage switching control signal 1 3 5: Input voltage switching control switch 1 3 6: Differential Amplifier circuits 137 ~ 140: voltage addition circuit voltages VO, V5: externally supplied voltage data signal, CK signal, LP signal, DI signal, FR signal are signals used to drive the liquid crystal display device. (Please read the precautions on the back before writing this page> / .installation. ΤΓ Printed by the Ministry of Economic Affairs Central Standards Bureau Beigong Consumer Cooperative. The paper size is applicable to a® home naked standard (CNS> A 4 specifications ( 210 X 297 mm) -51-

Claims (1)

Annex: Printed by the Consumer Cooperative of the Central Ministry of Economic Affairs of the Ministry of Economic Affairs «.: Patent Application No. 81108708 'Chinese application Patent Fan Garden Amendment April, 1984 Amendment of a kind of liquid crystal display device. It belongs to: LCD display panel, which The liquid crystal display panel is formed by forming a plurality of scan electrodes on one substrate of a pair of substrates sandwiching the liquid crystal ϋ, and forming a plurality of signal electrodes crossing the aforementioned scan electrodes on the other substrate, and The intersecting parts constitute the display point; and the scanning electrode driving circuit is used to supply the driving voltage waveform to the plurality of scanning electrodes of the liquid crystal display panel, and the signal electrode mole circuit is used to supply driving Voltage waveforms are given to the plurality of signal electrodes; and the power supply circuit is used to generate: a plurality of voltages required to form a driving voltage waveform for the plurality of scanning circuits for forming the scanning electrode driving circuit, and a signal electrode driving for forming Xiaolu supplies the complex multiple required voltages for the drive voltage waveforms of the aforementioned multiple signal electrodes; and The positive means is to add the correction voltage corresponding to the characters and graphics displayed on the liquid crystal display panel to: the voltage waveform to be applied to the scan electrode and the vibration to be applied to the signal electrode The liquid crystal display device in the form of at least one of the two waveforms of the voltage waveform is characterized by: The correction means has a detection means for detecting that the liquid crystal display panel or the scan electrode driving circuit Or the above-mentioned signal electrode paper size selection is based on the Chinese national standard rate (CNS > Α4 is now (210_Χ297mm) ---------— (please read the note Ϋ on the back before filling this page) A8 B8 C8 D8 Printed by the Ministry of Economic Affairs of the Central Government Consumer Cooperative Co., Ltd. 6. Patent application scope The change in voltage or current generated by at least a part of the drive circuit or power supply circuit, and will correspond to the inspection The voltage whose magnitude is detected by the voltage or current change is taken as the aforementioned correction voltage. 2. If the liquid crystal display device of patent application No. 1 is applied, the aforementioned detection Means for detecting: the driving voltage waveform of at least one scan electrode in the plurality of scan electrodes of the liquid crystal display panel and the power supply circuit generated for forming the scan electrode drive circuit to the plurality of scan electrodes A voltage change in the difference between at least one voltage within the electrical voltage necessary to move the voltage waveform. 3. The liquid crystal display device according to item 1 of the patent application circle, in which the aforementioned scan is formed on the aforementioned liquid crystal display panel On the electrode substrate, at least one or more voltage detection electrodes are formed to cross at least some of the aforementioned signal electrodes; or on the substrate on which the signal electrodes of the liquid crystal display panel are formed , Forming at least one or more voltage detection electrodes by crossing at least some of the plurality of scan electrodes; and the detection means is used to detect the voltage generated at the voltage detection electrodes "Changes" 4. For example, the liquid crystal display device of patent application No. 1 in which the aforementioned detection means For help in the flow of the power supply circuit is supplied to the scan electrode driving circuit of the at least one voltage, the power source is detected from a «flow path before the scanning electrode Qu said movable circuit. 5. As for the liquid crystal display device of patent application circle item 2, 3 or 4, wherein when there are multiple changes in voltage or current detected by the detection means, the correction means is set: Check out the hand --------- Ί— (Please read the notes on the back before filling in this page) The size of the paper used in this book is not in China (CNS> A4 * i grid (210X297 Gong *)- 2-Printed and printed by the WC Industrial and Consumer Cooperatives of the Central Bureau of Economic Affairs of the Ministry of Economic Affairs A8 B8 C8 _______D8 6. The plurality of changes in the aforementioned voltages or currents detected in the scope of the patent application are regarded as a specific function of the plurality of variables, and the response The corrected voltage of the function. 6. For the liquid crystal display device according to item 5 of the patent application range, the aforementioned function is: a function to average the aforementioned plural variables by angles. 7. If applying for item 3 of the patent application park A liquid crystal display device, wherein when there are a plurality of the voltage detection electrodes formed on the liquid crystal display panel, the correction means is set: the detection means can The voltage change detected by the output electrode serves as a specific function of a plurality of variables and generates a plurality of correction voltages corresponding to the function; and the correction to the drive waveform to be added to the signal electrode or the scan electrode The voltage depends on the position of the signal electrode or the scanning electrode in the liquid crystal display panel, and one of the plurality of correction voltages is determined to correct the cyanide voltage. 8. If applying for patent patent No. 3 The liquid crystal display device, wherein the voltage detection electrode is: the voltage detection electrode and the plurality of the signal electrodes or the surface of each intersection of the scan electrode is based on the signal electrode or the scan The electrodes vary the area. 9. As shown in item 5 of the patent application, the liquid ^ display device, wherein the correction means sets: a plurality of changes in the voltage or current detected by the detection means can be regarded as a plurality of A specific complex number of functions of the variable, and a complex number corresponding to the complex function is generated Positive voltage; and the correction electrode to be added to the turbulence waveform on the signal electrode or the scan electrode is due to the position of the signal electrode or the scan electrode in the liquid crystal display panel The standard of the multiple papers is applicable to the Chinese National Standard (CNS) Α4 «ϋ 2 丨 Ο X 297 Gong ϋ (please read the precautions on the back before filling in this education) Γ. End-3-B8 C8 D8 々, patent scope _ Among the correction voltages, one of the correction voltages is determined. 1 0. For the liquid crystal display device of Patent Application No. 3, wherein the aforementioned correction means generates a voltage change that is detected in response to the forward escape detection means And the correction voltage of the number of bright dots among the display dots of the liquid crystal display panel. 1 1. If the liquid crystal display device of patent application circle item 1 is used in an electronic device.丨;, ».-- (Please read the precautions on the back and then fill out this page) The paper standard printed by the Consumer Labor Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs is applicable to the Chinese National Standards (CNS) 4 (210. X297mm) -4-