CN108735094A - Display panel - Google Patents

Display panel Download PDF

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Publication number
CN108735094A
CN108735094A CN201810828030.XA CN201810828030A CN108735094A CN 108735094 A CN108735094 A CN 108735094A CN 201810828030 A CN201810828030 A CN 201810828030A CN 108735094 A CN108735094 A CN 108735094A
Authority
CN
China
Prior art keywords
touching signals
signals line
display panel
line
display
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810828030.XA
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Chinese (zh)
Inventor
洪光辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to CN201810828030.XA priority Critical patent/CN108735094A/en
Publication of CN108735094A publication Critical patent/CN108735094A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412Digitisers structurally integrated in a display
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00Screening of apparatus or components against electric or magnetic fields
    • H05K9/0067Devices for protecting against damage from electrostatic discharge

Abstract

This announcement provides a kind of display panel, which is characterized in that includes:One viewing area is provided with multiple display units of array arrangement;One first non-display area surrounds the viewing area;One trepanning is opened in the region in the viewing area;One second non-display area, position is provided with a plurality of arc routing between the viewing area and the trepanning in second non-display area, for being separately connected corresponding data line, grid line and touching signals line;And an electrostatic discharge protection circuit, including a suspension joint metal routing, wherein the suspension joint metal routing is set to the periphery of the trepanning and position is in second non-display area.By the way that electrostatic discharge protection circuit is arranged in the second non-display area, to promote the anti-ESD abilities of touching signals line at the second non-display area, and then the reliability of the display panel with trepanning in viewing area ensure that.

Description

Display panel
Technical field
This announcement is related to a kind of display panel, more particularly to a kind of display surface with trepanning design in viewing area Plate.
Background technology
To realize comprehensive screen design of complete machine and retaining front camera position, one kind has been developed in viewing area Display panel with trepanning design in (Active Area).Fig. 1 is please referred to, display one kind is existing to be had in viewing area There is the schematic diagram of the display panel 1 of the design of trepanning 10.Trepanning 10 is provided in the upper face of display panel 1, that is, in upper face Remove part display unit in the position of corresponding front camera.In existing trepanning design scheme, typically opened with circular 10 design method of hole removes part display unit, while frame 11 is designed around trepanning 10, is similar to the non-of left and right side frame Viewing area is to provide the setting of associated transport line.Compared to common abnormity (non-rectangle) panel with groove (notch), display Panel 1 increases the round frame 11 of a circle, and then increases the risk of reliability test failure, such as display panel 1 is carrying out electrostatic When electric discharge (Electrostatic discharge, ESD) test, the risk of test failure.
Since the design of trepanning 10 can remove part display unit, to ensure that the position at trepanning 10 other than can be normal It has been shown that, needs at frame 11 to data line (data line), grid line (gate line) and touching signals line (TP Signal line) etc. cablings optimize.Typically make grid in such a way that arc routing is set at frame 11 Line can by corresponding arc routing around at trepanning 10 by left and right connection, data line can be by corresponding arc routing around opening It is vertically connected at hole 10 and touching signals line can be vertically connected with by corresponding arc routing around at trepanning 10.Base Have in the presence of what connection data line, grid line and touching signals line etc. were convexly curved at present design scheme, frame 11 Metal routing is imitated, 11 design space of most of frame is occupied.And 11 generally use narrow frame design of frame and occupy display The part viewing area of panel 1 causes to have the ground wire design as at left and right side frame at frame 11 to protect gold Belong to cabling will not when ESD is tested 1 inner accumulation of display panel excessive electrostatic due to cause circuit wound, especially ESD can In property test, the anti-ESD abilities at frame 11 are weaker.In addition, in the epoch for pursuing comprehensive screen, ultimate attainment narrow frame design, enclose Frame 11 at trepanning 10 can also be compressed, and (ESD is tested at frame 11) is put forward higher requirements in turn to reliability test Increase the difficulty of panel design.
In view of this, it is necessary to a kind of display panel is proposed, to solve problems of the prior art.
Invention content
To solve above-mentioned problem of the prior art, the one kind that is designed to provide of this announcement is set in viewing area with trepanning The display panel of meter is arranged electrostatic discharge protection circuit by the non-display area in the outside of trepanning, is existed with promoting setting Close to tapping touching signals line anti-ESD abilities, and then ensure that in viewing area with trepanning display panel can By property.
To reach above-mentioned purpose, this announcement provides a kind of display panel, which is characterized in that includes:One viewing area, is provided with Multiple display units of array arrangement;One first non-display area surrounds the viewing area;One trepanning is opened in the viewing area Interior region;One second non-display area, position are set between the viewing area and the trepanning in second non-display area It is equipped with a plurality of arc routing, for connecting corresponding data line, grid line or touching signals line;And one anti-electrostatic-discharge protect Protection circuit, including a suspension joint metal routing, wherein the suspension joint metal routing is set to the periphery of the trepanning and position is in institute It states in the second non-display area.
In one of them preferred embodiment of this announcement, the suspension joint metal routing is annular and closed cabling.
In one of them preferred embodiment of this announcement, the display panel includes also one first touching signals line, and described The part setting of first touching signals line in the viewing area and another part setting in second non-display area, and it is described The both ends of first touching signals line all terminate in the viewing area.
In one of them preferred embodiment of this announcement, the position of the first touching signals line is in the part of the viewing area The position of the straight line and the first touching signals line parallel with the data line is in arc in the part of second non-display area Shape is bent.
In one of them preferred embodiment of this announcement, the display panel includes also one second touching signals line, is set as By the viewing area and second non-display area, and the first touching signals line and the second touching signals line are opposite Vertical line in the center by the trepanning is arranged symmetrically in relation to each other.
In one of them preferred embodiment of this announcement, a ground wire, Yi Jisuo are provided in first non-display area It includes one first virtual touching signals line to state electrostatic discharge protection circuit also, connects the suspension joint metal routing and the ground connection Line.
In one of them preferred embodiment of this announcement, the display panel also includes a third touching signals line, along The direction linear extension of the parallel data line, and one end of the third touching signals line terminates in the viewing area, and The other end terminates in second non-display area.
In one of them preferred embodiment of this announcement, the third touching signals line and the described first virtual touching signals line Position is on same linear position.
In one of them preferred embodiment of this announcement, the electrostatic discharge protection circuit also includes one second virtual touch-control Signal wire connects the suspension joint metal routing and the ground wire and the second virtual touching signals line and described first Virtual touching signals line is parallel and spaced a distance.
In one of them preferred embodiment of this announcement, the display panel includes also one the 4th touching signals line, with institute It is parallel and be separated by the identical distance to state third touching signals line, and the 4th touching signals line and described second virtual Touching signals line position is on same linear position.
Compared to prior art, this announcement passes through the one circle metal of (i.e. the second non-display area) increase at the outside of trepanning Cabling to realize the function of the ground wire of (i.e. the first non-display area) at the outer rim such as display panel, and then plays protection Cabling of the position at the second non-display area of trepanning periphery will not be wound in ESD reliability tests.It further, will be described Ground wire at the outer rim of one circle metal routing and display panel connects, to promote touching signals at the second non-display area The anti-ESD abilities of line, and then ensure that the reliability of the display panel with trepanning in viewing area.
Description of the drawings
Fig. 1 shows a kind of schematic diagram of the existing display panel with trepanning in viewing area;
Fig. 2 shows the schematic diagram of the display panel of the first preferred embodiment of this announcement;
Fig. 3 shows the enlarged diagram of the part A of the display panel of Fig. 1, be shown at the second non-display area data line and The design diagram of grid line;
Fig. 4 shows the enlarged diagram of the part B of the display panel of Fig. 1;And
Fig. 5 shows the partial schematic diagram of the display panel of the second preferred embodiment of this announcement.
Specific implementation mode
In order to which the above-mentioned and other purposes of this announcement, feature, advantage can be clearer and more comprehensible, it is excellent that spy is hereafter lifted into this announcement Embodiment is selected, and coordinates institute's accompanying drawings, is described in detail below.
Fig. 2 is please referred to, the schematic diagram of the display panel 2 of the first preferred embodiment of this announcement is shown, is particularly shown The touch scheme and relevant tracks design diagram of the display panel 2 with trepanning in viewing area.The display surface of this announcement Plate 2 be in order to realize complete machine comprehensive screen design and retain front camera position and provide, wherein display panel 2 is upper The position of plate face is provided with trepanning 20, that is, is arranged in the position of corresponding front camera.Also, display panel 2 can be LCD, OLED etc., and can be applicable in the fields such as mobile phone, display, TV.Display panel 2 includes that viewing area 21 and first is non-display Area 22, the first non-display area 22 surrounds the viewing area 21, and position is at the outermost side frame of display panel 2.In viewing area 21 The multiple display unit C and trepanning 20 for being provided with array arrangement are opened in viewing area 21.It should be noted that aobvious Show in the region other than the part A of panel 2, the generally rectangular cross-section designs of display unit C, and in the region of part A, for cooperation Trepanning 20 designs, and display unit C usually carries out (non-rectangle) the change design of abnormity to meet touch-control performance requirement, i.e., according to trepanning 20 The profile diagram at place carries out special-shaped design.
As shown in Fig. 2, being provided with ground wire 23 (i.e. GND) in the first non-display area 22, it is designed to protection and is located at Circuit at surrounding frame.Specifically, ground wire 23 is usually a circle metal routing to play the work(of circuit at protecting border Effect, and then improve the whole anti-ESD abilities of display panel 2.In addition, definition has viewing area boundary 24, colorized optical filtering on display panel 2 Sheet border 25 and thin film transistor (TFT) boundary 26, wherein colorized optical filtering sheet border 25 is on viewing area boundary 24 and film crystal tube edge Between boundary 26.
Fig. 3 is please referred to, shows the enlarged diagram of the part A of the display panel 2 of Fig. 1, is specifically shown in close to trepanning The design diagram of data line D1-D4 and gate lines G 1-G4 at 20.Display panel 2 also includes the second non-display area 28, and position is aobvious Show between area 21 and trepanning 20, size is defined by panel boundary 27 and viewing area boundary 24.It is opened since display panel 2 has Hole 20 is designed, therefore partial display unit can be removed, and to ensure that the position at trepanning 20 other than can normally be shown, is needed Data line (data line) D1-D4, grid line (gate line) G1-G4 and touch-control are believed at the second non-display area 28 The cablings such as number line (TP signal line) RX1-RX6 optimize.It is usually utilized on the second non-display area 28 and sets Set arc routing R mode enable gate lines G 1-G4 by corresponding arc routing R around at trepanning 20 by left and right connection, Data line D1-D4 can be vertically connected at trepanning 20 by corresponding arc routing R and touching signals line RX1-RX6 (with reference to Fig. 4) can be vertically connected with by corresponding arc routing R around at trepanning 20.Based on this design scheme, second is non-aobvious The a plurality of effective metal cabling (i.e. arc routing R) being convexly curved can be had for connecting corresponding data line by showing at area 28 D1-D4, gate lines G 1-G4 and touching signals line RX1-RX6 etc..
Fig. 4 is please referred to, the enlarged diagram of the part B of the display panel 2 of Fig. 1 is shown, is particularly shown display panel 2 The design diagram of touching signals line at the second non-display area 28.Fig. 4 is with 6 sensor mats at trepanning 20 It is illustrated for (Sensor Pad).Each sensor mat through hole is believed with corresponding touch-control in this touch-control sensing schemes Number line RX1-RX6 connections are to realize touch function.To ensure sensitivity and the accuracy of touch function, usually each sensor mat Connection hole number is consistent as far as possible.By taking touching signals line RX1 as an example, three sensor mats from top to bottom respectively with touch-control Signal wire RX1, touching signals line RX2, the RX3 connections of touching signals line.Also, to ensure close to sensor mat and touch-control at trepanning 20 The consistency of the connection hole number of signal wire RX1-RX6, three sensor mats of secondary series from top to bottom respectively with touching signals line RX6, touching signals line RX5, the RX4 connections of touching signals line.
As shown in figure 4, at the second non-display area 28, it is usually non-display second to ensure the homogeneity of touch-control performance Processing is optimized to touch scheme at area 28.Specifically, by the second non-display area 28 by touching signals line RX3, RX4 uses designed in mirror image to ensure the one of the sensor mat at trepanning 20 and the connection hole number of touching signals line RX3, RX4 Cause property.In addition, for the first touching signals line RX3 and the second touching signals line RX4 this two touching signals lines, to ensure The homogeneity of whole touching signals line RX3, RX4 design, is usually arc routing R at the second non-display area 28, i.e., with arc The mode of shape bending is arranged.It further illustrates, the first touching signals line RX3 and the second touching signals line RX4 are set as by aobvious Show area 21 and the second non-display area 28, and both ends all terminate in viewing area 21.The position of first touching signals line RX3 is in viewing area 21 Part be the straight line and first touching signals line RX3 parallel with data line D1-D4 (with reference to Fig. 3) position it is non-aobvious second Show that the part in area 28 is similarly arc routing R, that is, is convexly curved.Also, the second touching signals line RX4 is with respect to trepanning 20 Center vertical line (vertical line parallel with data line D1-D4), the first touching signals line RX3 and the second touching signals line RX4 is arranged symmetrically in relation to each other, and so ensures the homogeneity of touch-control performance.
As shown in figure 4, display panel 2 includes also electrostatic discharge protection circuit, it is positioned close to the position of trepanning 20, with The anti-ESD abilities of touching signals line RX3, RX4 at the second non-display area 28 are promoted, and then ensure that there is trepanning in viewing area The reliability of 20 display panel 2.In the present embodiment, electrostatic discharge protection circuit is with a ring shape and closed suspension joint (floating) metal routing 29 is realized.Suspension joint metal routing 29 is set to the periphery of trepanning 20 and position is non-display second In area 28, wherein suspension joint metal routing 29 can be single layer cabling, two-layer wiring, three layers of cabling, it is not limited to this.Pass through suspension joint The setting of metal routing 29 may be implemented if position is in the function of the ground wire 23 of the first non-display area 22, to play when ESD is tested The cabling at the second non-display area 28 is protected, and improves anti-ESD abilities at the second non-display area 28 to a certain extent, in turn Promote the reliability of display panel 2.
Fig. 5 is please referred to, shows the partial schematic diagram of the display panel 3 of the second preferred embodiment of this announcement.Second is excellent The display panel 3 of embodiment is selected to be similarly the display panel with trepanning design in viewing area, structure is substantially excellent with first Select the display panel 2 of embodiment identical, the Discrepancy Description of the two is as follows.Display panel 3 also includes electrostatic discharge protection circuit 39, it is positioned close to the position of trepanning 30, to promote the anti-ESD abilities of touching signals line RX7, RX8 at the second non-display area 38, And then it ensure that the reliability of the display panel 3 with trepanning 30 in viewing area.In the present embodiment, electrostatic discharge protection Circuit 39 includes virtual (dummy) the touching signals line of a ring shape and closed suspension joint metal routing 391, first 392 and second Virtual touching signals line 393, wherein 392 and second virtual touching signals line 393 of the first virtual touching signals line connects suspension joint gold Belong to cabling 391 and ground wire 33.
As shown in figure 5, suspension joint metal routing 391 is set to the periphery of trepanning 30 and position is in the second non-display area 38, Wherein suspension joint metal routing 391 can be single layer cabling, two-layer wiring, three layers of cabling, it is not limited to this.It is walked by suspension joint metal The setting of line 391 may be implemented if position is in the function of the ground wire 33 of aobvious the first non-display area for being 3 outermost of panel, to play ESD protects the cabling at the second non-display area 38 when testing, and improves anti-ESD at the second non-display area 38 to a certain extent Ability, and then promote the reliability of display panel 3.
Furthermore as shown in figure 5, display panel 3 also include third touching signals line RX7 and the 4th touching signals line RX8, Along the direction linear extension of panel data line, and one end of third touching signals line RX7 and the 4th touching signals line RX8 are whole Only the second non-display area 38 is terminated in viewing area 31 and the other end.It should be noted that third touching signals line RX7 with First 392, virtual touching signals line is on same linear position and the 4th touching signals line RX8 and the second virtual touch-control Signal wire 393 is on same linear position.Also, 393 and first virtual touching signals line of the second virtual touching signals line 392 parallel and spaced a distance D and the 4th touching signals line RX8 are parallel with third touching signals line RX7 and are separated by identical Distance D.
As shown in figure 5, by optimization design, using at the second non-display area 38 by electrostatic discharge protection circuit 39 Ground wire 33 of the one circle suspension joint metal routing 391 with position in aobvious the first non-display area for being 3 outermost of panel connects, that is, exists Second non-display area 38 is grounded design scheme, greatly promotes anti-ESD abilities at the second non-display area 38, improves display surface The reliability of plate 3.Furthermore, it is understood that ensure the homogeneity of touch-control performance, it will usually to touch-control at the second non-display area 38 Scheme optimizes processing, and designed in mirror image is used particular by touching signals line RX7, RX8 at the second non-display area 38, To ensure the consistency of the connection hole number of sensor mat and touching signals at trepanning 30.In this design, right For the 4th touching signals line RX8 and third touching signals line two touching signals lines of RX7, to ensure whole touching signals line The homogeneity of design, and under the premise of not influencing touch-control performance, the present embodiment are used the at the second non-display area 38 Four touching signals line RX8 and third touching signals line RX7 is disconnected, can ensure in former design the 4th touching signals line RX8 with The connectivity of third touching signals line RX7 and sensor mat.On the other hand by by suspension joint metal routing 391 and position it is aobvious be panel The ground wire 33 of first non-display area of 3 outermosts connects, and effectively promotes the suspension joint metal at the second non-display area 38 The anti-GND functions of cabling 391, and then the anti-ESD abilities of touching signals line RX7, RX8 at the second non-display area 38 are promoted, ensure The reliability of the display panel 3 with trepanning in viewing area.
In conclusion this announcement by the outside of trepanning (i.e. the second non-display area) increase by one circle metal routing, To realize the function of the ground wire of (i.e. the first non-display area) at the outer rim such as display panel, and then plays guard bit and opening Cabling at second non-display area of hole periphery will not be wound in ESD reliability tests.Further, by the circle gold Belong to the ground wire at the outer rim of cabling and display panel to connect, to promote the anti-of touching signals line at the second non-display area ESD abilities, and then ensure that the reliability of the display panel with trepanning in viewing area.
It the above is only the preferred embodiment of this announcement, it is noted that for one of ordinary skill in the art, do not departing from this Under the premise of disclosing principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as the protection of this announcement Range.

Claims (10)

1. a kind of display panel, which is characterized in that include:
One viewing area is provided with multiple display units of array arrangement;
One first non-display area surrounds the viewing area;
One trepanning is opened in the region in the viewing area;
One second non-display area, position are provided between the viewing area and the trepanning in second non-display area A plurality of arc routing, for connecting corresponding data line, grid line or touching signals line;And
One electrostatic discharge protection circuit, including a suspension joint metal routing, wherein the suspension joint metal routing is set to described open The periphery and position in hole are in second non-display area.
2. display panel as claimed in claim 1, which is characterized in that the suspension joint metal routing is annular and closed cabling.
3. display panel as claimed in claim 1, which is characterized in that the display panel also includes one first touching signals line, and The part setting of the first touching signals line is arranged in the viewing area and another part in second non-display area, and The both ends of the first touching signals line all terminate in the viewing area.
4. display panel as claimed in claim 3, which is characterized in that portion of the position of the first touching signals line in the viewing area It is divided into the position of the straight line parallel with the data line and the first touching signals line in the part of second non-display area It is convexly curved.
5. display panel as claimed in claim 4, which is characterized in that the display panel also includes one second touching signals line, if It is set to through the viewing area and second non-display area, and the first touching signals line and the second touching signals line It is arranged symmetrically in relation to each other with respect to the vertical line at the center of the trepanning.
6. display panel as claimed in claim 1, which is characterized in that it is provided with a ground wire in first non-display area, with And the electrostatic discharge protection circuit includes also one first virtual touching signals line, connects the suspension joint metal routing and described Ground wire.
7. display panel as claimed in claim 6, which is characterized in that the display panel also includes a third touching signals line, The viewing area is terminated in along one end of the direction linear extension of the parallel data line, and the third touching signals line, And the other end terminates in second non-display area.
8. display panel as claimed in claim 7, which is characterized in that the third touching signals line is believed with the described first virtual touch-control Number line position is on same linear position.
9. display panel as claimed in claim 8, which is characterized in that the electrostatic discharge protection circuit also includes one second virtual Touching signals line, connect the suspension joint metal routing and the ground wire and the second virtual touching signals line with it is described First virtual touching signals line is parallel and spaced a distance.
10. display panel as claimed in claim 9, which is characterized in that the display panel also includes one the 4th touching signals line, It is parallel with the third touching signals line and be separated by the identical distance, and the 4th touching signals line and described second Virtual touching signals line position is on same linear position.
CN201810828030.XA 2018-07-25 2018-07-25 Display panel Pending CN108735094A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201810828030.XA CN108735094A (en) 2018-07-25 2018-07-25 Display panel
PCT/CN2018/104372 WO2020019415A1 (en) 2018-07-25 2018-09-06 Display panel

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CN108735094A true CN108735094A (en) 2018-11-02

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WO (1) WO2020019415A1 (en)

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WO2020019415A1 (en) * 2018-07-25 2020-01-30 武汉华星光电技术有限公司 Display panel
CN109545085A (en) * 2018-11-22 2019-03-29 武汉天马微电子有限公司 Display panel and display device
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CN109671705A (en) * 2018-12-26 2019-04-23 武汉天马微电子有限公司 A kind of display panel and its display device
CN109545089A (en) * 2018-12-29 2019-03-29 厦门天马微电子有限公司 A kind of display panel and display device
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CN110610667A (en) * 2019-10-28 2019-12-24 武汉天马微电子有限公司 Display panel and display device

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