WO2019198208A1 - Procédé de modification de câblage et dispositif d'affichage - Google Patents

Procédé de modification de câblage et dispositif d'affichage Download PDF

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Publication number
WO2019198208A1
WO2019198208A1 PCT/JP2018/015427 JP2018015427W WO2019198208A1 WO 2019198208 A1 WO2019198208 A1 WO 2019198208A1 JP 2018015427 W JP2018015427 W JP 2018015427W WO 2019198208 A1 WO2019198208 A1 WO 2019198208A1
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WO
WIPO (PCT)
Prior art keywords
wiring
slit
spare
slits
extending direction
Prior art date
Application number
PCT/JP2018/015427
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English (en)
Japanese (ja)
Inventor
琢也 大石
Original Assignee
堺ディスプレイプロダクト株式会社
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Filing date
Publication date
Application filed by 堺ディスプレイプロダクト株式会社 filed Critical 堺ディスプレイプロダクト株式会社
Priority to PCT/JP2018/015427 priority Critical patent/WO2019198208A1/fr
Publication of WO2019198208A1 publication Critical patent/WO2019198208A1/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals

Definitions

  • the present invention relates to a wiring correction method and a display device.
  • a method for correcting wiring there is a method of correcting a data signal line passing through a display area of a display device as disclosed in International Publication No. 2017/060980. Both ends of the data signal line are arranged on the display area side.
  • a source driving circuit is connected to one end of the data signal line. When it is determined that such a data signal line is disconnected in the display area, one end of the data signal line is electrically connected to the other end of the data signal line through a spare wiring formed outside the display area. Connect.
  • a signal from the source driving circuit is directly supplied to a portion from the one end portion to the disconnection portion (hereinafter referred to as “first portion of the data signal line”) in the data signal line.
  • first portion of the data signal line a signal from the source drive circuit is supplied to the portion from the other end portion to the disconnection portion in the data signal line (hereinafter referred to as “second portion of the data signal line”) via a spare wiring.
  • the spare wiring is formed outside the display area of the display device and usually has a line width wider than that of the data signal line. For this reason, a signal whose waveform is not relatively broken is supplied from the spare wiring to the second portion of the data signal line. On the other hand, a signal having a relatively broken waveform is supplied from the source driving circuit to the first portion of the data signal line.
  • an object of the present invention is to provide a wiring correction method and a display device that can reduce display unevenness.
  • a wiring correction method includes: A method of correcting a wiring, wherein one end of the wiring is electrically connected to a driving circuit of the display device and corrects a wiring passing through a display area of the display device, It extends along the peripheral edge of the display area outside the display area, and extends from one end of the wiring toward the other end of the wiring, and has at least one slit. Forming a preliminary wiring; and A step of electrically connecting one end of the wiring and the other end of the wiring with the spare wiring and cutting the peripheral edge of the slit when the wiring is disconnected.
  • a display device includes: A display area; Wiring through the display area; A drive circuit electrically connected to one end of the wiring; The first and second slits extend along the peripheral edge of the display area outside the display area and from one end of the wiring toward the other end of the wiring.
  • the first slit extends along a direction in which the preliminary wiring extends
  • the second slit extends along the extending direction, and the length in the extending direction is different from the length in the extending direction of the first slit,
  • the first slit and the second slit are adjacent to each other in the width direction of the spare wiring.
  • the wiring correction method and display device of the present invention can reduce display unevenness by the above-described configuration.
  • FIG. 1 is a schematic diagram showing a configuration of a liquid crystal panel 100 included in a display device according to an embodiment of the present invention.
  • the liquid crystal panel 100 includes a TFT (thin film transistor) side glass substrate 10, a plurality of source drivers 20, a source substrate 25, and a CF (color filter) side glass substrate (not shown). .
  • the CF side glass substrate is disposed at a distance from the TFT side glass substrate 10 so as to face the surface of the TFT side glass substrate 10. Further, light from a backlight (not shown) is incident on the back surface of the TFT side glass substrate 10.
  • the TFT side glass substrate 10 is formed to have a rectangular shape in plan view. That is, the peripheral edge of the TFT side glass substrate 10 includes first and second short sides 10a and 10b parallel to each other and first and second long sides 10c and 10d parallel to each other.
  • the first long side 10c is a side connecting one end of the first short side 10a and one end of the second short side 10b.
  • the second long side 10d is a side connecting the other end of the first short side 10a and the other end of the second short side 10b.
  • the TFT side glass substrate 10 may be formed to have another shape (for example, a square or the like) in a plan view.
  • the liquid crystal panel 100 includes a plurality of TFTs (not shown) arranged in a matrix on the surface of the TFT side glass substrate 10. In the vicinity of each TFT, a pixel electrode (not shown) electrically connected to the drain of each TFT is provided. In addition, on the surface of the TFT side glass substrate 10 means the CF side glass substrate side of the TFT side glass substrate 10.
  • each gate line 11 is electrically connected to the gate of each TFT.
  • each source line 21 is electrically connected to the source of each TFT.
  • the source line 21 is an example of wiring.
  • a plurality of gate drivers 15A are provided so as to be positioned in the vicinity of the first short side 10a of the TFT side glass substrate 10.
  • the plurality of gate drivers 15 ⁇ / b> A are arranged in a line along the first short side 10 a of the TFT side glass substrate 10 and are electrically connected to one end of each gate line 11.
  • a gate driver 15B provided in the vicinity of the second short side 10b of the TFT side glass substrate 10 is connected to the other end of each gate line 11.
  • the source substrate 25 has a rectangular shape in plan view, and extends along the first long side 10c of the TFT side glass substrate 10.
  • a plurality of source drivers 20 are arranged between the TFT side glass substrate 10 and the source substrate 25 along the first long side 10 c of the TFT side glass substrate 10.
  • One end of a plurality of source lines 21 is electrically connected to each source driver 20.
  • a plurality of source substrates 25 may be provided along the first long side 10 c of the TFT side glass substrate 10.
  • a counter electrode (not shown) facing the pixel electrode is provided under the back surface of the CF side glass substrate.
  • a liquid crystal layer (not shown) is sealed between the pixel electrode and the counter electrode.
  • the surface of the CF side glass substrate emits light to the side opposite to the TFT side glass substrate 10. That is, the surface of the CF side glass substrate is a surface facing the user. Note that the “under the back surface of the CF side glass substrate” means the TFT side glass substrate 10 side of the CF side glass substrate.
  • the light transmittance of the liquid crystal facing each TFT is adjusted, and the display luminance at each display pixel is adjusted. decide.
  • External gate driver power supply voltage is supplied to the gate drivers 15A and 15B via the gate trunk line L11 of the source substrate 25 and the gate trunk line L12 of the TFT side glass substrate 10.
  • an external gate driver control signal is input to the gate drivers 15A and 15B via the gate trunk line L11 of the source substrate 25 and the gate trunk line L12 of the TFT side glass substrate 10.
  • the external source driver power supply voltage is supplied to the source driver 20 via the source trunk line L 21 of the source substrate 25.
  • an external source driver control signal is input to the source driver 20 via the source trunk line L21 of the source substrate 25.
  • the gate trunk line L11 and the source trunk line L21 of the source substrate 25 are electrically connected to an external control circuit (not shown) via the connector CN.
  • the gate drivers 15A and 15B sequentially apply a control voltage for controlling on / off of each TFT to the gate line 11 which is a scanning line in synchronization with the input gate driver control signal.
  • the source driver 20 takes in pixel data in synchronization with the input source driver control signal, sequentially outputs signal voltages corresponding to the pixel data, and applies them to the source line 21.
  • the signal voltage output from the source driver 20 is applied to the corresponding liquid crystal.
  • FIG. 2 is a schematic diagram for explaining spare wirings 31A and 31B of the liquid crystal panel 100.
  • FIG. 2 is a schematic diagram for explaining spare wirings 31A and 31B of the liquid crystal panel 100.
  • the liquid crystal panel 100 includes a display area 50 through which a plurality of source lines 21 pass.
  • the display region 50 is a region between the TFT glass substrate 10 and the CF side glass substrate, includes a liquid crystal controlled by the TFT, and has a rectangular shape in plan view.
  • the spare wirings 31 ⁇ / b> A and 31 ⁇ / b> B extend from the one end of the source line 21 to the other end of the source line 21 along the peripheral edge of the display area 50 outside the display area 50. It is formed on the peripheral part. More specifically, the spare wirings 31 ⁇ / b> A and 31 ⁇ / b> B are formed on the peripheral portion of the TFT side glass substrate 10 so as not to overlap the display area 50. That is, the spare wirings 31 ⁇ / b> A and 31 ⁇ / b> B are wirings that do not pass through the display area 50.
  • the spare wiring 31A is in the vicinity of the first long side 10c of the TFT side glass substrate 10, in the vicinity of the first portion 41A extending along the first long side 10c, and in the vicinity of the first short side 10a of the TFT side glass substrate 10.
  • the spare wiring 31B has a shape symmetrical to the spare wiring 31A, and includes a first portion 41B, a second portion 42B, and a third portion 43B.
  • the spare wiring 31 ⁇ / b> A has a three-dimensional intersection with the plurality of source lines 21 on the peripheral portion of the TFT side glass substrate 10 on the first long side 10 c side, and the third portion 43 ⁇ / b> A has the TFT side glass substrate 10.
  • the three-dimensional crossing with the plurality of source lines 21 is performed on the peripheral portion on the second long side 10d side. Further, an insulating film (not shown) exists between the first and third portions 41A and 43A of the spare wiring 31A and the plurality of source lines 21.
  • the first and third portions 41A and 43A of the spare wiring 31A are also connected to the plurality of source lines 21 via an insulating film (not shown). Three-dimensional crossing.
  • the spare wirings 31A and 31B each have a substantially constant width from one end to the other end. At this time, each width of the spare wirings 31A and 31B is set to 90 ⁇ m, for example.
  • FIG. 3 is an enlarged schematic view of a part of the second portion 42A of the spare wiring 31A.
  • Slits 51, 52, 53, 54A to 54G are formed in the second portion 42A of the spare wiring 31A.
  • the slits 51, 52, 53, and 54A have different lengths in the extending direction of the spare wiring 31A.
  • the slit 54A has substantially the same length as the slits 54B to 54G. More specifically, in the extending direction of the spare wiring 31A, the length of the slit 51 is the longest, the length of the slit 52 is the second longest, the length of the slit 53 is the third longest, and the length of the slit 54A. Is the fourth longest.
  • the widths of the slits 51, 52, 53, 54A to 54G are substantially the same, and are set to 10 ⁇ m, for example. Also, between the slit 51 and the slits 52 and 54B, between the slits 52 and 54B and the slits 53, 54C and 54D, and between the slits 53, 54C and 54D and the slits 54A, 54E, 54F and 54G, For example, it is set to 10 ⁇ m. In addition, in the spare wiring 31A, the portion on the right side in the drawing with respect to the slit 51 is also set to 10 ⁇ m, for example.
  • portions on the left side of the drawing with respect to the slits 54A, 54E, 54F, and 54G are also set to 10 ⁇ m, for example.
  • the slits 51, 52, 53, 54A to 54G are an example of at least one of the first and second slits.
  • the slit 51 is arranged at a portion of the second portion 42A on the display area 50 (shown in FIG. 2) side.
  • slits 52 and 54B are arranged on the side opposite to the display area 50 with respect to the slit 51. That is, the slits 52 and 54B are adjacent to the slit 51 in the width direction of the auxiliary wiring 31A. The slits 52 and 54B are adjacent to each other in the extending direction of the auxiliary wiring 31A. At this time, one end of the slit 54B and one end of the slit 51 are substantially aligned in the width direction of the auxiliary wiring 31A. In other words, one end of the slit 54B and one end of the slit 51 are substantially the same in the extending direction of the auxiliary wiring 31A.
  • the other end of the slit 54 ⁇ / b> B faces one end of the slit 52. Further, the other end of the slit 52 and the other end of the slit 51 are aligned along the width direction of the auxiliary wiring 31A. In other words, the other end of the slit 52 and the other end of the slit 51 have substantially the same position in the extending direction of the auxiliary wiring 31A.
  • slits 53, 54C, 54D are arranged on the opposite side of the display area 50 with respect to the slits 52, 54B. That is, the slits 53, 54C, 54D are adjacent to the slits 52, 54B in the extending direction of the auxiliary wiring 31A. The slits 53, 54C, 54D are adjacent to each other in the extending direction of the spare wiring 31A. Further, one end of the slit 54D and one end of the slit 51 are substantially aligned in the width direction of the auxiliary wiring 31A. The other end of the slit 54D faces one end of the slit 54C. The other end of the slit 54 ⁇ / b> C faces one end of the slit 53. Further, the other end of the slit 53 and the other end of the slit 51 are substantially aligned in the width direction of the auxiliary wiring 31A.
  • slits 54A, 54E, 54F, and 54G are arranged on the side opposite to the display area 50 with respect to the slits 53, 54C, and 54D. That is, the slits 54A, 54E, 54F, and 54G are adjacent to the slits 53, 54C, and 54D in the width direction of the auxiliary wiring 31A. The slits 54A, 54E, 54F, and 54G are adjacent to each other in the extending direction of the spare wiring 31A. Further, one end of the slit 54G and one end of the slit 51 are substantially aligned in the width direction of the auxiliary wiring 31A. The other end of the slit 54G faces one end of the slit 54F.
  • the other end of the slit 54F faces one end of the slit 54E. Further, the other end of the slit 54E faces one end of the slit 54A. Further, the other end of the slit 54A and the other end of the slit 51 are substantially aligned in the width direction of the auxiliary wiring 31A.
  • marks 61A to 61E of places to be cut are provided in the vicinity of the slits 51 to 54A.
  • One or a plurality of marks may be provided at a place different from the places of the marks 61A to 61E.
  • the length of the slit 51 is L
  • the length of the slit 52 is substantially the same as the length obtained by multiplying L by 3/4.
  • the length of the slit 53 is substantially the same as the length obtained by multiplying L by 1/2
  • the length of the slits 54A to 54G is substantially the same as the length obtained by multiplying L by 1/4.
  • the marks 61A to 61E are arranged on one side in the width direction of the slits 51 to 53 and 54A to 54G in the spare wiring 31A from the viewpoint of greatly changing the resistance of the spare wiring 31A by cutting the mark portions.
  • it is preferably provided on the other side, that is, on the right side in FIG. 3 (the display region 50 side) or the left side in FIG. 3 (the side opposite to the display region 50) of the slits 51 to 53 and 54A to 54G.
  • the amount of increase in the resistance of the spare wiring 31A is determined by the length of the cut thin wiring portion.
  • the length of the thin wiring portion on the right side of the slit 51 in FIG. 3 is L
  • the mark 61A or the mark 61B is cut
  • the amount of increase in the resistance of the spare wiring 31A is as shown in FIG. This is in accordance with the length L of the middle right thin wiring portion.
  • the amount of increase in the resistance of the spare wiring 31A is the mark 61A or the mark 61B.
  • the increase amount is close to 3/4 when the portion is cut.
  • the length of the thin wiring portion on the right side in FIG. 3 of the slit 53 is L / 2, and therefore the amount of increase in the resistance of the spare wiring 31A is that of the mark 61A or the mark 61B.
  • the amount of increase is close to 1 ⁇ 2 when the portion is cut.
  • the length of the thin wiring portion is L / 4.
  • the increase amount of the resistance is an increase amount close to 1 ⁇ 4 when the mark 61A or the mark 61B is cut.
  • the second portion 42B of the spare wiring 31B is also formed in the same manner as the second portion 42A of the spare wiring 31A.
  • the display device having the above configuration for example, when a break occurs in the source line 21 whose one end is electrically connected to the source driver 20 at the left end in FIG. 2, one end of the source line 21 in which the break occurs. Is electrically connected to the other end of the source line 21 where the disconnection has occurred via a spare wiring 31A.
  • a spare wiring 31A for example, by laser irradiation, the one end portion of the source line 21 where the disconnection has occurred and the first portion 41A of the spare wiring 31A are welded together, and the other end portion of the source line 21 where the disconnection has occurred
  • the third portion 43A of the spare wiring 31A is welded to each other.
  • the resistance of the spare wiring 31A increases. Therefore, the waveform of the signal voltage supplied to the other end portion of the source line 21 via the spare wiring 31 ⁇ / b> A can be broken to the same extent as the waveform of the signal voltage supplied to one end portion of the source line 21. As a result, the luminance difference between the portion of the source line 21 on the one end side from the disconnection portion and the portion of the source line 21 on the other end side from the disconnection portion is reduced, so that display unevenness can be reduced.
  • the spare wiring 31A has the slits 51, 52, 53, 54A to 54G, it is possible to increase the number of locations for cutting to increase the resistance of the spare wiring 31A. Therefore, the resistance of the spare wiring 31A can be finely adjusted.
  • the length of the slit 51 is L
  • the length of the slit 52 is substantially the same as the length obtained by multiplying L by 3/4. Therefore, when only the portion of the mark 61C is cut, it is easy to predict the increase in resistance of the spare wiring 31A.
  • the increase in the resistance of the backup wiring 31A is It can be predicted to be approximately 0.75X. This is because the length of the thin wiring portion with the mark 61C is substantially the same as 3L / 4. That is, the amount of increase in the resistance of the spare wiring 31A can be easily estimated based on the length of the thin wiring portion.
  • the length of the slit 51 is L
  • the length of the slit 53 is substantially the same as the length obtained by multiplying L by 1/2. Therefore, when only the portion of the mark 61D is cut, it is easy to predict the increase in resistance of the spare wiring 31A.
  • the increase in resistance of the spare wiring 31A is approximately. It can be predicted as 0.50X.
  • the length of the slit 51 is L
  • the length of the slit 54A is substantially the same as the length obtained by multiplying L by 1/4. Therefore, when only the portion of the mark 61E is cut, the increase in resistance of the spare wiring 31A can be easily predicted.
  • the resistance of the spare wiring 31A can be increased and the capacity of the spare wiring 31A can be lowered. That is, the capacity of the spare wiring 31A can be adjusted by leaving or removing the fine wiring portion or adjusting the amount of the fine wiring portion to be removed.
  • the resistance of the spare wiring 31A may be adjusted by cutting a plurality of locations of the marks 61A to 61E. For example, by cutting the place of the mark 61A and at least one of the marks 61C, 61D, 61E, the resistance increase amount X of the spare wiring 31A when only the place of the mark 61A is cut is larger. Increases are obtained.
  • the resistance of the spare wiring 31A can be increased at a stretch.
  • the thin wiring portion on the right side in FIG. 3 or the left side in FIG. 3 of each of the slits 54A, 54E, 54F, and 54G is cut, the resistance of the spare wiring 31A can be increased stepwise.
  • the source line 21 in which the disconnection has occurred can be corrected by the same method as described above. it can.
  • one end of the source line 21 is insulated in order to correct the disconnection.
  • a first relay wiring that is three-dimensionally crossed through the film and is electrically connected to the first portion 41A of the spare wiring 31A or the first portion 41B of the spare wiring 31B is provided.
  • the second end of the source line 21 where the disconnection has occurred is three-dimensionally crossed via an insulating film and electrically connected to the third portion 43A of the spare wiring 31A or the third portion 43B of the spare wiring 31B.
  • Relay wiring is provided.
  • the spare wiring 31A is used in a GOA (Gate-on-Array) type display device in which the gate drivers 15A, 15B are formed on the TFT side glass substrate 10, but for example, the gate drivers 15A, 15B COF (Chip-On-Film) on which is mounted may be used for a COF-type display device connected to the TFT-side glass substrate 10. That is, at least one of the gate drivers 15A and 15B may be connected to the peripheral edge of the TFT side glass substrate 10 instead of the so-called gate COF.
  • GOA Gate-on-Array
  • one end of the source line 21 in which the disconnection has occurred is electrically connected to the other end of the source line 21 in which the disconnection has occurred via the spare wiring 31A, and then the second of the spare wiring 31A.
  • part of the part 42A was cut, after cutting part of the second part 42A of the spare wiring 31A, one end of the source line 21 where the disconnection occurred is connected to the disconnection via the spare wiring 31A. It may be electrically connected to the other end portion of the source line 21 in which the occurrence of.
  • one spare wiring 31A and 31B is formed, but a plurality of spare wirings 31A and 31B may be formed.
  • the slits 51, 52, 53, 54A to 54G are formed in the second portion 42A of the spare wiring 31A, but are formed in the first portion 41A or the third portion 43A of the spare wiring 31A. It may be. That is, the spare wiring 31A may have a plurality of slit groups including the slits 51, 52, 53, and 54A to 54G.
  • the slits 51, 52, 53, 54A to 54G are formed in a part of the second portion 42A of the spare wiring 31A, but other than the spare wiring 31A along the extending direction of the spare wiring 31A. You may extend to the part. In this case, the slits 51, 52, 53, 54A to 54G may be extended at the same extension rate.
  • the spare wiring 31A having ten slits 51, 52, 53, 54A to 54G is used.
  • the spare wiring 231A having one slit 251 may be used. Good.
  • the width of the spare wiring 231A is set to 90 ⁇ m, for example, the width of the slit 251 is set to 70 ⁇ m, for example.
  • the right portion of the slit 251 in the drawing may have, for example, 10 ⁇ m
  • the left portion of the slit 251 in the drawing may have, for example, 10 ⁇ m.
  • a spare wiring 331A having two slits 351 and 352 may be used.
  • the slits 351 and 352 extend along the extending direction of the auxiliary wiring 331A, and the lengths in the extending direction are different from each other. In the extending direction, the slits 351 and 352 are adjacent to each other.
  • the slit 351 is an example of one of the first and second slits.
  • the slit 352 is an example of the other of the first and second slits.
  • a spare wiring 431A having two slits 451 and 452 may be used.
  • the slits 451 and 452 extend along the extending direction of the auxiliary wiring 431A, and the lengths in the extending direction are different from each other.
  • the slits 451 and 452 are adjacent to each other in the width direction of the spare wiring 431A.
  • the slit 451 is an example of one of the first and second slits.
  • the slit 452 is an example of the other of the first and second slits.
  • the modification of the spare wiring 31A as described above may be performed on the spare wiring 31B.
  • the portions to be cut have the marks 61A to 61E, but may have a different color or shape from the other portions, for example.
  • a wiring correction method includes: A wiring correction method in which one end of the wiring is electrically connected to the drive circuit 20 of the display device and the wiring 21 passing through the display region 50 of the display device is corrected.
  • the outer side of the display area 50 extends along the peripheral edge of the display area 50 and extends from one end side of the wiring 21 to the other end side of the wiring 21 and at least one line.
  • the resistance of the spare wirings 31A and 31B is reduced by cutting the peripheral portions of the slits 51, 52, 53, 54A to 54G, 251, 351, 352, 451, and 452 of the spare wirings 31A and 31B. Can be raised. Therefore, the waveform of the signal supplied to the other end portion of the wiring 21 via the spare wirings 31 ⁇ / b> A and 31 ⁇ / b> B can be broken to the same extent as the waveform of the signal supplied to one end portion of the wiring 21. As a result, the difference between the luminance of light by the portion on the one end side in the display region 50 of the wiring 21 and the luminance of light by the portion on the other end side in the display region 50 of the wiring 21 is reduced. Therefore, display unevenness can be reduced.
  • the slits 51, 52, 53, 54A to 54G, 251, 351, 352, 451, 452 are plural in number
  • the plurality of slits 51, 52, 53, 54A to 54G, 251, 351, 352, 451, 452 are First slits 51, 52, 53, 54 A to 54 G, 251, 351, 352, 451, 452 extending along the extending direction of the auxiliary wirings 31 A, 31 B;
  • the length in the extending direction is the length of the first slits 51, 52, 53, 54A to 54G, 251, 351, 352, 451, 452 in the extending direction.
  • the spare wirings 31A, 31B are provided with the first slits 51, 52, 53, 54A to 54G, 251, 351, 352, 451, 452 or the second slits 51, 52, 53, 54A to 54G, Compared to having only 251, 351, 352, 451, 452, the spare wirings 31 A, 31 B have first and second slits 51, 52, 53, 54 A to 54 G, 251, 351, 352, 451, 452. In some cases, the number of cutting patterns for increasing the resistance of the spare wirings 31A and 31B can be increased.
  • the spare wirings 31A, 31B have the first and second slits 51, 52, 53, 54A to 54G, 251, 351, 352, 451, 452, thereby finely adjusting the resistance of the spare wirings 31A, 31B. be able to.
  • the second slits 51, 52, 53, 54 A to 54 G, 251, 351, 352, 451, 452 are arranged in the extending direction in the first slits 51, 52, 53, 54 A to 54 G, 251, 351, 352. , 451, 452 next to each other.
  • the second slits 51, 52, 53, 54A to 54G, 251, 351, 352, 451, 452 are arranged in the extending direction of the spare wirings 31A, 31B.
  • 53, 54A to 54G, 251, 351, 352, 451, 452, 452, 452, 452, 451, 452, 452, 452, 452, 452, 452, 452 452 When the peripheries of the slits 51, 52, 53, 54A to 54G, 251, 351, 352, 451, 452 are cut, the resistance of the spare wirings 31A, 31B can be greatly changed.
  • the second slits 51, 52, 53, 54 A to 54 G, 251, 351, 352, 451, and 452 are arranged in the width direction of the spare wirings 31 A and 31 B, and the first slits 51, 52, 53, 54 A to 54 G, 251, 351, 352, 451, 452.
  • the second slits 51, 52, 53, 54A to 54G, 251, 351, 352, 451, 452 are arranged in the width direction of the spare wirings 31A, 31B. , 54A to 54G, 251, 351, 352, 451, 452, it is possible to reduce the line width of the spare wirings 31 A and 31 B.
  • a natural number not including 0 is N
  • the number of slits 51, 52, 53, 54A to 54G, 251, 351, 352, 451, 452 arranged in the width direction of the spare wirings 31A, 31B is M (> N).
  • the lengths of the second slits 51, 52, 53, 54 A to 54 G, 251, 351, 352, 451, 452 in the extending direction are the first slits 51, 52, 53, 54 A to 54 G, 251, 351.
  • 352, 451, 452 is substantially the same as the length obtained by multiplying the length in the extending direction by N / M.
  • the lengths of the first slits 51, 52, 53, 54A to 54G, 251, 351, 352, 451, 452 are multiplied by N / M in the extending direction of the spare wirings 31A, 31B.
  • the lengths of the second slits 51, 52, 53, 54A to 54G, 251, 351, 352, 451, 452 are set to substantially the same length as the first length, the first slits 51, 52, 53, 54A 54G, 251, 351, 352, 451, 452 and the second slits 51, 52, 53, 54A to 54G, 251, 351, 352, 451, 452 are cut, the spare wirings 31A, 31B Increase in resistance is easier to predict.
  • the spare wirings 31A and 31B have portions that serve as marks 61A to 61E of locations to be cut.
  • a display device includes: A display area 50; Wiring 21 passing through the display area 50; A drive circuit 20 electrically connected to one end of the wiring 21; The outer side of the display area 50 extends along the peripheral edge of the display area 50 and from one end side of the wiring 21 toward the other end side of the wiring 21.
  • Spare wirings 31A, 31B having second slits 51, 52, 53, 54A to 54G, 251, 351, 352, 451, 452;
  • the first slits 51, 52, 53, 54A to 54G, 251, 351, 352, 451, 452 extend along the extending direction of the spare wirings 31 A, 31 B,
  • the second slits 51, 52, 53, 54 A to 54 G, 251, 351, 352, 451, 452 extend along the extending direction, and the length in the extending direction is the first slit 51.
  • the first slits 51, 52, 53, 54A to 54G, 251, 351, 352, 451, 452 and the second slits 51, 52, 53, 54A to 54G, 251, 351, 352, 451, 452 Adjacent to each other in the width direction of the spare wirings 31A and 31B.
  • the resistance of the spare wirings 31A, 31B is reduced. Can be raised. Therefore, the waveform of the signal supplied to the other end portion of the wiring 21 via the spare wirings 31 ⁇ / b> A and 31 ⁇ / b> B can be broken to the same extent as the waveform of the signal supplied to one end portion of the wiring 21. As a result, the difference between the luminance of light by the portion on the one end side in the display region 50 of the wiring 21 and the luminance of light by the portion on the other end side in the display region 50 of the wiring 21 is reduced. Therefore, display unevenness can be reduced.
  • the spare wirings 31A and 31B serve as the first slits 51, 52, 53, 54A to 54G, 251, 351, 352, 451, 452 or the second slits 51, 52, 53, 54A to 54G, 251, 351, 352. , 451, 452 only when the spare wirings 31 A, 31 B have the first and second slits 51, 52, 53, 54 A to 54 G, 251, 351, 352, 451, 452, A cutting pattern for increasing the resistance of the spare wirings 31A and 31B can be increased.
  • the spare wirings 31A, 31B have the first and second slits 51, 52, 53, 54A to 54G, 251, 351, 352, 451, 452, thereby finely adjusting the resistance of the spare wirings 31A, 31B. be able to.
  • the second slits 51, 52, 53, 54A to 54G, 251, 351, 352, 451, and 452 are arranged in the extending direction of the spare wirings 31 A and 31 B.
  • 251, 351, 352, 451, 452 the first slits 51, 52, 53, 54 A to 54 G, 251, 351, 352, 451, 452 or the second slits 51, 52, 53 are located next to each other.
  • 54A to 54G, 251, 351, 352, 451, 452 the resistances of the spare wirings 31 A and 31 B can be greatly changed.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Microelectronics & Electronic Packaging (AREA)

Abstract

La présente invention porte sur un procédé de modification de câblage comprenant : une étape consistant à former un câblage préliminaire (31A) qui comporte au moins une fente (51, 52, 53, 54A-54G) et qui s'étend de façon à suivre, à l'extérieur d'une région d'affichage, le bord périphérique de la région d'affichage, et de façon à aller d'une extrémité de câblage à une autre extrémité du câblage ; et une étape consistant à connecter électriquement, quand le câblage est déconnecté, la première extrémité du câblage et l'autre extrémité du câblage à l'aide du câblage préliminaire (31A), et à couper le bord périphérique de la fente (51, 52, 53, 54A-54G).
PCT/JP2018/015427 2018-04-12 2018-04-12 Procédé de modification de câblage et dispositif d'affichage WO2019198208A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6111558A (en) * 1997-05-30 2000-08-29 Samsung Electronics Co., Ltd. Liquid crystal displays including closed loop repair lines and methods of repairing same
JP2007011249A (ja) * 2005-05-30 2007-01-18 Sanyo Epson Imaging Devices Corp 電気光学装置及びその製造方法並びに電子機器
US20120169986A1 (en) * 2010-12-30 2012-07-05 Kwon Hokyoon Liquid crystal display panel
WO2017060980A1 (fr) * 2015-10-06 2017-04-13 堺ディスプレイプロダクト株式会社 Dispositif d'affichage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6111558A (en) * 1997-05-30 2000-08-29 Samsung Electronics Co., Ltd. Liquid crystal displays including closed loop repair lines and methods of repairing same
JP2007011249A (ja) * 2005-05-30 2007-01-18 Sanyo Epson Imaging Devices Corp 電気光学装置及びその製造方法並びに電子機器
US20120169986A1 (en) * 2010-12-30 2012-07-05 Kwon Hokyoon Liquid crystal display panel
WO2017060980A1 (fr) * 2015-10-06 2017-04-13 堺ディスプレイプロダクト株式会社 Dispositif d'affichage

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