CN109697938A - Display panel, preparation method, detection method and display device - Google Patents
Display panel, preparation method, detection method and display device Download PDFInfo
- Publication number
- CN109697938A CN109697938A CN201910066910.2A CN201910066910A CN109697938A CN 109697938 A CN109697938 A CN 109697938A CN 201910066910 A CN201910066910 A CN 201910066910A CN 109697938 A CN109697938 A CN 109697938A
- Authority
- CN
- China
- Prior art keywords
- control signal
- detection
- transistor
- display panel
- signal line
- 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.)
- Granted
Links
Classifications
-
- 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
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
-
- 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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
-
- 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
- G02F1/136254—Checking; Testing
Abstract
The invention discloses a kind of display panel, preparation method, detection method and display devices, by the way that detection transistor is arranged between signal lines and corresponding drive signal line, and it will put light detection signal to control all detection transistors in the conducting of lighting detection-phase by setting first switch transistor and be supplied to viewing area and light display panel.In reliability detection-phase, all detection transistor cutoffs are controlled by the signal that third control signal wire loads, it is opened with will test signal wire with drive signal line by detection transistor partition, so as to avoid the extension due to signal lines corrosion sites from influencing the transmission of signal in drive signal line, and then avoid display abnormal.
Description
Technical field
The present invention relates to field of display technology, in particular to a kind of display panel, preparation method, detection method and display dress
It sets.
Background technique
With the development of display panel production technology, the mass automatic production epoch are entered at present.In display panel
After manufacturing, display panel may existing defects, it is therefore desirable to detect to the quality of display panel.In order to avoid at
This increase, therefore driving IC (Integrated Circuit, integrated circuit), PCB (Printed can be assembled in display panel
Circuit Board, printed circuit board), before FPC (Flexible Printed Circuit, flexible circuit board), to its into
Row lighting test.The structure of lighting test stage corresponding display panel, as shown in Figure 1, may include, underlay substrate 100 is used
In to viewing area AA input drive signal a plurality of drive signal line 110, with drive signal line 110 correspond the drive that is electrically connected
Moved end 111 is corresponded for a plurality of signal lines 120 of input point light detection signal, and with signal lines 120
The detection terminal 121 of electrical connection.Also, a drive signal line 110 is correspondingly connected with a signal lines 120.It is surveyed in lighting
It in the examination stage, is electrically connected by the detection terminal 121 for being electrically connected signal lines 120 with lighting jig, to detection signal
120 input point light detection signal of line, is lighted to control viewing area AA, to detect display panel with the presence or absence of bad.If
Lighting detection-phase does not find bad, then is cut according to cutting line CG to underlay substrate 100, will test terminal 121
It removes, as shown in Figure 2.Later, the drive terminal 111 in display panel shown in Fig. 2 is passed through into the elements such as FPC and driving IC, PCB
It is electrically connected, the elements such as display panel and driving IC, FPC, PCB is assembled.
Since display panel may work in certain particular surroundings (such as high-temperature high-humidity environment), assembling
After driving IC, FPC, PCB, it is also necessary to reliability test is carried out to display panel under certain temperature and certain humidity, with detection
Signal transmission between display panel and driving IC, FPC, PCB further ensures that the quality of display panel with the presence or absence of bad.
However, got rid of since above-mentioned cutting can not will test signal wire 120 completely, it will lead to residual a part detection letter
Number line 120.And the remaining signal lines 120 are flushed with underlay substrate frontside edge, so as to cause remaining signal lines
120 can directly contact water oxygen.In this way when carrying out reliability test to display panel, it will lead to remaining signal lines
120 occur corrosion phenomenon.Also, as water oxygen constantly enters, corrosion sites also can constantly extend, when corrosion sites extend to inspection
When surveying the junction of signal wire 120 and drive signal line 110, the transmission of electric signal in drive signal line 110 will affect, to lead
The problems such as causing display abnormal.
Summary of the invention
The embodiment of the present invention provides a kind of display panel, preparation method, detection method and display device, with to avoid corrosion
Influence to display panel.
The embodiment of the invention provides a kind of display panels, comprising: underlay substrate, be located at the underlay substrate on for
The a plurality of drive signal line of the viewing area input drive signal of the display panel, and it is a pair of with each drive signal line one
The signal lines that should be electrically connected, the display panel further include: first switch transistor, first control signal line, the second control
Signal wire processed, third control signal wire and transistor is detected correspondingly with each signal lines；Wherein, each institute
Signal lines are stated to be electrically connected by the corresponding detection transistor with corresponding drive signal line；
The grid of the first switch transistor is electrically connected with the first control signal line, the first switch transistor
The first pole be electrically connected with the second control signal line, the second pole of the first switch transistor respectively with the third control
The grid electrical connection of signal wire processed and all detection transistors.
Optionally, in embodiments of the present invention, the display panel further include: second switch transistor, the 4th control letter
Number line and the 5th control signal wire；Second pole of the first switch transistor passes through the second switch transistor and each institute
State the grid electrical connection of detection transistor；
The grid of the second switch transistor respectively with the second pole of the first switch transistor and the described 4th
Control signal wire electrical connection, the first pole of the second switch transistor is electrically connected with the 5th control signal wire, and described the
Second pole of two switching transistors is electrically connected with the grid of each detection transistor respectively.
Optionally, in embodiments of the present invention, each detection transistor is P-type transistor, the 5th control letter
Number line is electrically connected with the signal lines for loading the signal lines of low level signal；Alternatively,
Each detection transistor is N-type transistor, is used in the 5th control signal wire and the signal lines
In the signal lines electrical connection of load high level signal.
Optionally, in embodiments of the present invention, the 4th control signal wire and each same material of drive signal line same layer
Matter.
Optionally, in embodiments of the present invention, the drive signal line and the different layer of the signal lines are arranged.
Optionally, in embodiments of the present invention, the third control signal wire and each same material of drive signal line same layer
Matter；And/or
The first control signal line, the second control signal line, each signal lines and all transistors
Grid same layer same material.
Optionally, in embodiments of the present invention, the second control signal line is polyline shaped；And/or all transistors
The material of active layer is polysilicon.
Correspondingly, it the embodiment of the invention also provides a kind of display device, includes such as above-mentioned display panel and driving electricity
Road；Wherein, the driving circuit is electrically connected with each drive signal line and the third control signal wire respectively.
Optionally, in embodiments of the present invention, the driving circuit is also electrically connected with the 4th control signal wire.
Correspondingly, the embodiment of the invention also provides a kind of preparation methods of above-mentioned display panel, comprising:
Each drive signal line, each signal lines, first control are respectively formed on the underlay substrate
Signal wire, the second control signal line, the third control signal wire, the first switch transistor and each inspection processed
Survey the figure of transistor.
Optionally, in embodiments of the present invention, the preparation method further include: institute is respectively formed on the underlay substrate
State the figure of second switch transistor, the 4th control signal wire and the 5th control signal wire.
Correspondingly, the embodiment of the invention also provides a kind of detection methods of above-mentioned display panel, comprising:
In lighting detection-phase, the first control signal of the first level is loaded to the first control signal line, to described
Second control signal line loads the second control signal of the first level, and loads corresponding lighting to each signal lines
Signal is detected, to control the first switch transistor turns, controls each detection transistor turns, and is controlled described aobvious
Show that panel is lighted；
In reliability detection-phase, signal is controlled to the third of third control signal wire load second electrical level, and
Corresponding driving signal is loaded to each drive signal line, to control each detection transistor cutoff, and described in control
Display panel is lighted.
Optionally, in embodiments of the present invention, in the lighting detection-phase, the detection method further include: to described
5th control signal wire loads the 5th control signal of the first level；
In the reliability detection-phase, the detection method further include: to the 4th control signal wire load second
4th control signal of level.
The present invention has the beneficial effect that:
Display panel, preparation method, detection method and display device provided in an embodiment of the present invention, by detection signal
Setting detection transistor between line and corresponding drive signal line, and by setting first switch transistor to control all inspections
It surveys transistor to be connected in lighting detection-phase, light detection signal will be put be supplied to viewing area and light display panel.In reliability
Detection-phase, the signal loaded by third control signal wire control all detection transistor cutoffs, with will test signal wire with
Drive signal line is opened by detection transistor partition, so as to avoid the extension due to signal lines corrosion sites from influencing to drive
The transmission of signal in dynamic signal wire, and then avoid display abnormal.
Detailed description of the invention
Fig. 1 is one of the overlooking structure diagram of display panel in the prior art；
Fig. 2 is the two of the overlooking structure diagram of display panel in the prior art；
Fig. 3 is one of the overlooking structure diagram of display panel provided in an embodiment of the present invention；
Fig. 4 is the schematic diagram of the section structure of display panel shown in Fig. 3；
Fig. 5 is the two of the overlooking structure diagram of display panel provided in an embodiment of the present invention；
Fig. 6 is the schematic diagram of the section structure of display panel shown in fig. 5.
Specific embodiment
In order to make the purpose of the present invention, the technical scheme and advantages are more clear, with reference to the accompanying drawing, to the embodiment of the present invention
The display panel of offer, preparation method, the specific embodiment of detection method and display device are described in detail.It should manage
Solution, preferred embodiment disclosed below is only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.And it is not rushing
In the case where prominent, the features in the embodiments and the embodiments of the present application be can be combined with each other.It should be noted that each in attached drawing
Layer film thickness and shape do not reflect the actual proportions of array substrate, and purpose is schematically illustrate the content of present invention.And from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.
The pixel list that a plurality of grid line, multiple data lines and grid line and data line limit is provided in general display panel
Member.Wherein, grid line is electrically connected with gate driving circuit, to input gated sweep signal, control to grid line by gate driving circuit
The pixel unit for making every grid line connection is opened.Data line is electrically connected with source electrode drive circuit, with defeated by source electrode drive circuit
Enter data-signal, so that display panel realizes display effect.Therefore, a part of drive signal line can be used for transmitting and drive to grid
The signals such as clock signal clk, frame trigger signal STV, high voltage signal VGH and the low voltage signal VGL of dynamic circuit input, with
Control gate drive circuit exports gated sweep signal to grid line, is scanned driving.Another part drive signal line can be used
In the data controlling signal that transmission is inputted to source electrode drive circuit, believed with controlling source electrode drive circuit to data line output data
Number.General circuit or driving IC using on PCB passes through drive signal line to gate driving circuit input clock signal CLK, frame
The signals such as trigger signal STV, high voltage signal VGH and low voltage signal VGL are exported with control gate drive circuit to grid line
Gated sweep signal.And by drive signal line to source electrode drive circuit input signal, to control source electrode drive circuit to number
According to line outputting data signals.Certainly, in practical applications, to gate driving circuit input signal with it is defeated to source electrode drive circuit
The signal entered can also include other signals in the prior art, be not limited thereto.
Some display panels provided in an embodiment of the present invention, as shown in figure 3, may include: underlay substrate 100, being located at lining
On substrate 100 for display panel viewing area AA input drive signal a plurality of drive signal line 110, and with it is each
Drive signal line 110 corresponds the signal lines 120 of electrical connection.Display panel can also include: first switch transistor
M1, first control signal line 130, second control signal line 140, third control signal wire 150 and with each signal lines
110 one-to-one detection transistor M0；Wherein, each signal lines 120 by corresponding detection transistor M0 with it is corresponding
Drive signal line 110 is electrically connected.Also, the grid of first switch transistor M1 is electrically connected with first control signal line 130, and first
The first pole of switching transistor M1 is electrically connected with second control signal line 140, the second pole of first switch transistor M1 respectively with
The grid electrical connection of third control signal wire 150 and all detection transistor M0.The first pole of each detection transistor M0 with it is right
The signal lines 120 answered are electrically connected, and each the second pole for detecting transistor M0 is electrically connected with corresponding drive signal line 110.
Display panel provided in an embodiment of the present invention, by being arranged between signal lines and corresponding drive signal line
Transistor is detected, and is connected by setting first switch transistor with controlling all detection transistors in lighting detection-phase,
Viewing area is supplied to so that light detection signal will be put and lights display panel.In reliability detection-phase, pass through third control signal wire
The signal of load controls all detection transistor cutoffs, passes through detection transistor partition will test signal wire and drive signal line
It opens, so as to avoid the extension due to signal lines corrosion sites from influencing the transmission of signal in drive signal line, and then keeps away
It is abnormal to exempt from display.
It should be noted that the first control of the first level can be loaded to first control signal line in lighting detection-phase
Signal processed loads the second control signal of the first level to second control signal line, and loads and correspond to each signal lines
Point light detection signal control each detection transistor turns, and control the display panel to control first switch transistor turns
It lights, to carry out lighting detection to display panel.Wherein, point light detection signal is input to display surface by signal lines 120
In the viewing area AA of plate, point light detection signal may include the clock signal clk inputted to gate driving circuit, frame trigger signal
The signals such as STV, high voltage signal VGH and low voltage signal VGL, and the data-signal inputted to data line.Also, believing
Rely property detection-phase, the third that second electrical level can be loaded to third control signal wire controls signal, and to each driving signal
Line loads corresponding driving signal, to control each detection transistor cutoff, and controls the display panel and lights, to display panel
Carry out reliability detection.Wherein, driving signal is input in the viewing area AA of display panel by drive signal line 110, is driven
Signal may include clock signal clk, frame trigger signal STV, the high voltage signal VGH and low inputted to gate driving circuit
The signals such as voltage signal VGL, and the data-signal inputted to data line.
In the specific implementation, each signal lines 120 pass through corresponding detection transistor M0 and corresponding drive signal line
110 electrical connections, can be for referring to input the signal lines 120 of identical signal in lighting detection-phase and reliability detection-phase
It is electrically connected with drive signal line 110.For example, lighting detection-phase transmission frame trigger signal STV signal lines 120 and
The drive signal line 110 of reliability detection-phase transmission frame trigger signal STV is electrically connected, and transmits high voltage in lighting detection-phase
The signal lines 120 of signal VGH and reliability detection-phase transmission high voltage signal VGH drive signal line 110 be electrically connected
It connects, remaining and so on, therefore not to repeat here.
It should be noted that since second control signal line in lighting detection-phase needs to input second control signal, because
This can also be electrically connected before display panel is cut with a detection terminal 121 shown in FIG. 1, to pass through detection terminal
121 are input to second control signal on second control signal line.Make after display panel is cut in this way, it also can be residual
There are part second control signal lines, can also directly contact water oxygen so as to cause remaining second control signal line and cause corruption
Erosion.Due to being provided with first switch transistor between second control signal line and third control signal wire, so as to pass through the
The partition of one switching transistor acts on, and avoids the corrosion due to second control signal line to the unfavorable shadow of third control signal wire
It rings.
In the specific implementation, in embodiments of the present invention, as shown in figure 3, second control signal line 140 can be made to be set as
Polyline shaped.The length of second control signal line 140 can be extended, in this way to delay the corrosion of second control signal line 140 to extend
To the time of first switch transistor.
In the specific implementation, drive signal line, signal lines, first control signal line, second control signal can be made
The material of line and third control signal wire is set as conductive material, such as metal, ITO etc..
General polysilicon (p-Si) belongs to semiconductor material, and relative to metal, ITO these conductive materials, p-Si is not easy to send out
Raw electrochemical corrosion.In the specific implementation, in embodiments of the present invention, the material of the active layer of all transistors can be made to be arranged
For polysilicon.To further avoid corroding the influence to drive signal line.
In the specific implementation, using the first pole of above-mentioned each switching transistor as its source electrode, the second pole is as its drain electrode；
Alternatively, the second pole does not do specific differentiation as its source electrode herein using the first pole as its drain electrode.
General P-type transistor ends under high level effect, is connected under low level effect；N-type transistor is in high level
The lower conducting of effect, ends under low level effect.In the specific implementation, in embodiments of the present invention, as shown in figure 3, can make
First switch transistor and each detection transistor are disposed as P-type transistor.Such first level can be set to low level,
Second electrical level is set as high level.Alternatively, first switch transistor and each detection transistor can also be made to be disposed as N-type crystalline substance
Body pipe.Such first level can be set to high level, and second electrical level is set as low level.This is needed according to actual application environment
Determination is designed, is not limited thereto.
Further, each drive signal line same layer same material is set, and makes each same material of signal lines same layer
Matter setting.In order to avoid influence of the corrosion to signal lines of drive signal line, in the specific implementation, as shown in figure 4, can be with
Drive signal line 110 and the different layer of signal lines 120 are set.Drive can be touched by the gap of interlayer to avoid water oxygen in this way
Dynamic signal wire.
Further, in the specific implementation, in embodiments of the present invention, as shown in figure 4, third control signal wire can be made
150 with each 110 same layer same material of drive signal line, patterning processes can be passed through in this way and form third control signal wire 150
And the figure of each drive signal line 110, preparation process can be simplified, save production cost, improve production efficiency.
Further, in the specific implementation, in embodiments of the present invention, first control signal line 130, second can be made to control
120 same layer same material of signal wire 140 processed and each signal lines can form the first control by a patterning processes in this way
The figure of signal wire 130, second control signal line 140 and each signal lines 120 can simplify preparation process, save life
Cost is produced, production efficiency is improved.
In the specific implementation, above-mentioned each transistor can be using the setting of the transistor arrangement of top gate type or bottom gate type, herein
It is not construed as limiting.Below by taking top-gate type structure as an example, as shown in figure 4, the active layer 210 and first switch crystal of detection transistor M0
The 310 same layer same material of active layer of pipe M1 is set on underlay substrate 100, is set in active layer 210 away from 100 side of underlay substrate
It is equipped with 410 place layer of the first insulating layer, 100 side of underlay substrate is provided with detection crystalline substance in 410 place layer of the first insulating layer
The grid 220 of body pipe M0, the grid 320 of first switch transistor M1, signal lines 120, first control signal line 130 and
140 place layer of second control signal line is provided with second insulating layer 420 away from 100 side of underlay substrate in 220 place layer of grid
Place layer is provided with third control signal wire 150 and driving away from 100 side of underlay substrate in 420 place layer of second insulating layer
110 place layer of signal wire is provided with 430 institute of third insulating layer away from 100 side of underlay substrate in 110 place layer of drive signal line
In layer, 231 He of the first pole of detection transistor M0 is provided with away from 100 side of underlay substrate in 430 place layer of third insulating layer
Second pole 232, first switch transistor M1 the first pole 331 and the second pole 332.Wherein, the first pole 231 of transistor M0 is detected
By being electrically connected through the via hole of third insulating layer 430 and second insulating layer 420 with signal lines 120, transistor M0 is detected
The second pole 232 by being electrically connected through the via hole of third insulating layer 430 with drive signal line 110.First switch transistor M1
The first pole 331 be electrically connected by the via hole through third insulating layer 430 and second insulating layer 420 with second control signal line 140
It connects, the second pole 332 of first switch transistor M1 passes through the via hole and third control signal wire 150 through third insulating layer 430
Electrical connection.Further, can also be arranged in the 231 place layer of the first pole of detection transistor M0 away from 100 side of underlay substrate
There is planarization layer.
In the specific implementation, display panel can be liquid crystal display panel.Pixel unit may include pixel electrode in this way
And thin film transistor (TFT).The grid of thin film transistor (TFT) is electrically connected with grid line, and the source electrode of thin film transistor (TFT) is electrically connected with data line, thin
The drain electrode of film transistor is electrically connected with pixel electrode.Wherein, when thin film transistor (TFT) is opened, the data transmitted on data signal line
Signal charges to pixel electrode.Alternatively, display panel may be electroluminescence display panel, such pixel unit may include
Electroluminescent diode and the pixel circuit for driving electroluminescent diode luminous.Wherein, pixel circuit respectively with grid line
It is electrically connected with data line, when grid line controls the transistor turns in pixel circuit, the data transmitted on data line can be believed
Number it is input to the grid of the driving transistor in pixel circuit.Further, electroluminescent diode may include: organic light emission
Diode (Organic Light-Emitting Diode, OLED) or light emitting diode with quantum dots (Quantum Dot Light
Emitting Diodes, QLED), it is not limited thereto.Further, electroluminescence display panel can cause hair for flexible electrical
Light display panel or rigid electroluminescence display panel, are not limited thereto.It is possible to further make drive signal line 110 with
Electrode same layer same material setting in storage capacitance in pixel circuit.
In the specific implementation, first switch transistor, detection transistor and the transistor in pixel unit can be made
The setting of active layer same layer same material.It can make grid line, first switch transistor, detection transistor, the transistor in pixel unit
Grid same layer same material setting.And make data line, first switch transistor, detection transistor, the crystal in pixel unit
The source-drain electrode same layer same material of pipe is arranged, to reduce technique preparation difficulty.
It is illustrated its detection process by taking display panel shown in Fig. 3 as an example below, but reader should be advised that, detailed process is not
It is confined to this.
It does not cut off detection terminal 121 also in lighting detection-phase, display panel, therefore, is provided on underlay substrate 100
Multiple detection terminals 121 (Fig. 3 is not shown, reference can be made to Fig. 1).Wherein, every signal lines 120 connect one to one one and examine
Terminal 121 is surveyed, first control signal line 130 connects one to one a detection terminal 121, and second control signal line 140 is one by one
It is correspondingly connected with a detection terminal 121.In this way when carrying out lighting detection to display panel, pass through lighting jig and each test side
Son 121 is electrically connected, and to load low level first control signal to first control signal line 130, controls first switch transistor
M1 conducting.Low level second control signal is loaded to second control signal line 140, to pass through the second switch transistor of conducting
M1 is transferred to the grid of each detection transistor M0, to control each detection transistor M0 conducting.And each signal lines 120 are added
Corresponding light detection signal is carried, the viewing area AA controlled the display panel is lighted, to detect display panel with the presence or absence of bad.If
Lighting detection-phase does not find bad, then is cut according to the cutting line CG in Fig. 1 to underlay substrate 100, will test end
Son 121 removes.
The elements such as display panel and driving IC, FPC, PCB are assembled later.Enter reliability after finishing assembly to examine
The survey stage, to carry out reliability test (such as carrying out reliability test at a temperature of 85 humidity 85) to display panel.Trusting
Property detection-phase, corresponding driving signal is loaded to each drive signal line 110 by circuit on PCB or driving IC, with control
Display panel is lighted, to carry out reliability test to display panel.Also, the circuit or driving IC on PCB, which control third, to be believed
The third that number line 150 loads high level controls signal, is ended with controlling each detection transistor M0, can be to avoid due to transistor
Electric leakage causes the signal on drive signal line 110 to be transferred to signal lines 120, so as to so that nothing in signal lines 120
Electrical signal, and then signal lines 120 is avoided corrosion phenomenon comparatively fast occur, further decrease the corrosion of signal lines 120
Influence to drive signal line 110.
The present invention also provides the structural schematic diagrams of the corresponding display panel of other embodiments as shown in figs. 5 and 6.Its
It is deformed for the embodiment of display panel shown in Fig. 3.Only illustrate present embodiment and implementation shown in Fig. 3 below
In place of the difference of mode, therefore not to repeat here for something in common.
In order to further decrease the influence corroded to drive signal line, in the specific implementation, in embodiments of the present invention, such as
Shown in Fig. 5, display panel can also include: second switch transistor M2, the 4th control signal wire 160 and the 5th control signal
Line 170.The second pole of first switch transistor M1 is electrically connected by second switch transistor M2 and the grid of each detection transistor M0
It connects.The grid of second switch transistor M2 respectively with the second pole of first switch transistor M1 and the 4th control signal wire 160
Electrical connection, the first pole of second switch transistor M2 is electrically connected with the 5th control signal wire 170, and the of second switch transistor M2
Two poles are electrically connected with the grid of each detection transistor M0 respectively.
In the specific implementation, in embodiments of the present invention, as shown in figure 5, each detection transistor can be made to be disposed as p-type
Transistor.Further, in order to save wiring space, the 5th control signal wire 170 can be made and be used to add in signal lines
The signal lines electrical connection of low level signal VGL is carried, each detection transistor can be controlled by low level signal VGL in this way and led
It is logical.It is, of course, also possible to which each detection transistor is made to be disposed as N-type transistor.It further, can be in order to save wiring space
It is electrically connected the 5th control signal wire for loading the signal lines of low level signal VGH with signal lines, in this way may be used
To control each detection transistor turns by low level signal VGH.This needs designs determination according to actual application environment, herein
It is not construed as limiting.
In the specific implementation, in embodiments of the present invention, as shown in fig. 6, the 4th control signal wire 160 and each drive can be made
Dynamic 110 same layer same material of signal wire saves production cost to simplify preparation process, improves production efficiency.
In the specific implementation, in embodiments of the present invention, as shown in fig. 6, can make that second switch transistor M2's is active
The 210 same layer same material of active layer of layer 510 and detection transistor M0 saves production cost to simplify preparation process, improves production
Efficiency.
In the specific implementation, in embodiments of the present invention, as shown in fig. 6, the grid of second switch transistor M2 can be made
520 save production cost with the 220 same layer same material of grid for detecting transistor M0 to simplify preparation process, improve production effect
Rate.
In the specific implementation, in embodiments of the present invention, as shown in fig. 6, the 5th control signal wire and second can be made
The 231 same layer same material of the first pole of the first pole 531 of switching transistor M2 and the second pole 532 and detection transistor M0, with simplification
Preparation process saves production cost, improves production efficiency.
It is illustrated its detection process for preparing display panel shown in fig. 5 below, but reader should be advised that, specific mistake
Journey is not limited to this.
In lighting detection-phase, it is electrically connected by lighting jig with each detection terminal 121, to each signal lines 120
Load corresponding light detection signal.And low level first control signal loaded to first control signal line 130, control the
One switching transistor M1 conducting.Low level second control signal is loaded to second control signal line 140, to pass through the of conducting
Two switching transistor M1 are transferred to the grid of second switch transistor M2, control second switch transistor M2 conducting.Due to second
Switching transistor M2 conducting can will test the low level signal VGL transmitted on signal wire 120 and pass through the 5th control signal wire
170 are supplied to the grid of each detection transistor M0, to control each detection transistor M0 conducting.Display to control the display panel
Area AA is lighted, to detect display panel with the presence or absence of bad.If lighting detection-phase do not find it is bad, according to cutting in Fig. 1
Secant CG cuts underlay substrate 100, will test the removal of terminal 121.
Reliability test is carried out to display panel later.In reliability detection-phase, pass through the circuit or driving IC on PCB
Corresponding driving signal is loaded to each drive signal line 110, is lighted with controlling the display panel, to carry out reliability to display panel
Test.Also, the third that the circuit or driving IC on PCB load high level to third control signal wire 150 controls signal, with control
Each detection transistor M0 cut-off is made, the signal on drive signal line 110 can be caused to be transferred to avoid the electric leakage due to transistor
Signal lines 120.And the 4th control of circuit or driving IC also to the 4th control signal wire 160 load high level on PCB
Signal processed can lead to third to control second switch transistor M2 cut-off to avoid the electric leakage due to second switch transistor M2
Signal on control signal wire 150 is transferred to signal lines 120.So as to so that without electrical signal in signal lines 120,
And then signal lines 120 is avoided corrosion phenomenon comparatively fast occur, the corrosion of signal lines 120 is further decreased to driving signal
The influence of line 110.
The embodiment of the invention also provides the preparation methods of some above-mentioned display panels, may include: on underlay substrate
It is respectively formed each drive signal line, each signal lines, first control signal line, second control signal line, third control signal
The figure of line, first switch transistor and each detection transistor.
Specifically, it is illustrated for preparing display panel shown in Fig. 4 below, but reader should be advised that, detailed process
It is not limited to this.As shown in connection with fig. 4, the preparation method of display panel may include steps of:
(1) by patterning processes, the figure of active layer is formed on underlay substrate 100.Wherein, which may include
Transistor has in the active layer 210 of each detection transistor M0, the active layer 310 and pixel unit of first switch transistor M1
Active layer.
(2) by patterning processes, the figure of the first insulating layer 410 is formed on the underlay substrate 100 for being formed with active layer.
(3) by patterning processes, each detection transistor is formed on the underlay substrate 100 for being formed with the first insulating layer 410
The grid 220 of M0, the grid 320 of first switch transistor M1, each signal lines 120, first control signal line 130 and
The figure of two control signal wires 140.
(4) by patterning processes, the figure of second insulating layer 420 is formed on underlay substrate 100.
(5) by patterning processes, each drive signal line 110 and third control signal wire 150 are formed on underlay substrate 100
Figure.
(6) by patterning processes, the figure of third insulating layer 430 is formed on underlay substrate 100, runs through third insulating layer
Multiple via holes of 430 to the first insulating layers 410, through multiple via holes of third insulating layer 430 and second insulating layer 420, and
Through multiple via holes of third insulating layer 430.
(7) by patterning processes, the first pole 231 and the second pole of each detection transistor M0 are formed on underlay substrate 100
232, the figure of the first pole 331 and the second pole 332 of first switch transistor M1.Wherein, the first pole 231 of transistor M0 is detected
By being electrically connected through the via hole of third insulating layer 430 and second insulating layer 420 with signal lines 120, transistor M0 is detected
The second pole 232 by being electrically connected through the via hole of third insulating layer 430 with drive signal line 110, detect the of transistor M0
One pole 231 and the second pole 232 pass through 210 electricity of via hole and active layer through 430 to the first insulating layer 410 of third insulating layer respectively
Connection.The first pole 331 of first switch transistor M1 by via hole through third insulating layer 430 and second insulating layer 420 with
Second control signal line 140 is electrically connected, and the second pole 332 of first switch transistor M1 passes through the mistake through third insulating layer 430
Hole is electrically connected with third control signal wire 150, and the first pole 331 and the second pole 332 of first switch transistor M1 is respectively by passing through
The via hole for wearing 430 to the first insulating layer 410 of third insulating layer is electrically connected with active layer 310.
(8) by patterning processes, planarization layer is formed on underlay substrate 100.
It is illustrated for preparing display panel shown in fig. 6 below, but reader should be advised that, detailed process is not limited to
This.As shown in connection with fig. 6, the preparation method of display panel may include steps of:
(1) by patterning processes, the figure of active layer is formed on underlay substrate 100.Wherein, which may include
Each detection active layer 210 of transistor M0, the active layer 310 of first switch transistor M1, second switch transistor M2 it is active
The active layer of transistor in layer 510 and pixel unit.
(2) by patterning processes, the figure of the first insulating layer 410 is formed on the underlay substrate 100 for being formed with active layer.
(3) by patterning processes, each detection transistor is formed on the underlay substrate 100 for being formed with the first insulating layer 410
The grid 220 of M0, the grid 320 of first switch transistor M1, the grid 520 of second switch transistor M2, each signal lines
120, the figure of first control signal line 130 and second control signal line 140.
(4) by patterning processes, the figure of second insulating layer 420 is formed on underlay substrate 100.
(5) by patterning processes, each drive signal line 110, third control signal wire 150 are formed on underlay substrate 100
And the 4th control signal wire 160 figure.
(6) by patterning processes, the figure of third insulating layer 430 is formed on underlay substrate 100, runs through third insulating layer
Multiple via holes of 430 to the first insulating layers 410, through multiple via holes of third insulating layer 430 and second insulating layer 420, and
Through multiple via holes of third insulating layer 430.
(7) by patterning processes, the first pole 231 and the second pole of each detection transistor M0 are formed on underlay substrate 100
232, the first pole 331 and the second pole 332 of first switch transistor M1, second switch transistor M2 the first pole 531 and second
The figure of pole 532 and the 5th control signal wire.Wherein, it detects the first pole 231 of transistor M0 and the second pole 232 passes through respectively
Via hole through 430 to the first insulating layer 410 of third insulating layer is electrically connected with active layer 210, detects the first pole of transistor M0
231, by being electrically connected through the via hole of third insulating layer 430 and second insulating layer 420 with signal lines 120, detect transistor
The second pole 232 of M0 is electrically connected by the via hole through third insulating layer 430 with drive signal line 110.First switch transistor
The first pole 331 and the second pole 332 of M1 respectively by through 430 to the first insulating layer 410 of third insulating layer via hole with it is active
Layer 310 is electrically connected, and the first pole 331 of first switch transistor M1 passes through through third insulating layer 430 and second insulating layer 420
Via hole is electrically connected with second control signal line 140, and the second pole 332 of first switch transistor M1 is by running through third insulating layer
430 via hole is electrically connected with the 4th control signal wire 160.The first pole 531 of second switch transistor M2 and the second pole 532 difference
It is electrically connected by the via hole through 430 to the first insulating layer 410 of third insulating layer with active layer 510, second switch transistor M2
The first pole 531 it is electric by via hole through third insulating layer 430 and second insulating layer 420 and corresponding signal lines 120
Second pole 532 of connection, second switch transistor M2 passes through the via hole and third control signal wire through third insulating layer 430
150 electrical connections.
(8) by patterning processes, planarization layer is formed on underlay substrate 100.
It should be noted that patterning processes can only include photoetching process, or, may include photoetching process and etching step
It suddenly, while can also include other techniques for being used to form predetermined pattern such as printing, ink-jet；Photoetching process refer to including film forming,
The technique for forming figure using photoresist, mask plate, exposure machine etc. of the technical process such as exposure, development.In the specific implementation, may be used
The corresponding patterning processes of structure choice formed according to the present invention.
It based on the same inventive concept, can be with the embodiment of the invention also provides a kind of detection method of above-mentioned display panel
Include:
In lighting detection-phase, the first control signal of the first level is loaded to first control signal line, is controlled second
Signal wire loads the second control signal of the first level, and loads corresponding light detection signal to each signal lines, with
First switch transistor turns are controlled, control each detection transistor turns, and control the display panel and light；
In reliability detection-phase, signal is controlled to the third of third control signal wire load second electrical level, and to each
Drive signal line loads corresponding driving signal, to control each detection transistor cutoff, and controls the display panel and lights.
In the specific implementation, in embodiments of the present invention, in lighting detection-phase, detection method further include: controlled to the 5th
Signal wire processed loads the 5th control signal of the first level；
In reliability detection-phase, detection method further include: the 4th control to the 4th control signal wire load second electrical level
Signal processed.
In the specific implementation, believe in the 5th control signal wire and signal lines for loading the detection of low level signal
When the electrical connection of number line, the of the first level can be loaded to the 5th control signal wire by the low level signal in signal lines
Five control signals.
In the specific implementation, believe in the 5th control signal wire and signal lines for loading the detection of high level signal
When the electrical connection of number line, the of the first level can be loaded to the 5th control signal wire by the high level signal in signal lines
Five control signals.
Wherein, the reality of the detection of the detection method of the display panel dynamic principle and specific embodiment and above-mentioned display panel
The principle for applying example is identical with embodiment, and therefore, the detection method of the display panel can be found in display panel in above-described embodiment
Specific embodiment implemented, details are not described herein.
Based on the same inventive concept, the embodiment of the invention also provides a kind of display devices, including the embodiment of the present invention to mention
The above-mentioned display panel and driving circuit supplied；Wherein, driving circuit respectively with each drive signal line and third control signal wire
Electrical connection.The principle that the display device solves the problems, such as is similar to aforementioned display panel, therefore the implementation of the display device can be joined
See the implementation of aforementioned display panel, repeating place, details are not described herein.
In the specific implementation, when display panel further includes four control signal wire, in embodiments of the present invention, driving electricity
Road is also electrically connected with the 4th control signal wire.
In the specific implementation, driving circuit may include the circuit or driving IC on PCB.
In the specific implementation, display device provided in an embodiment of the present invention can be with are as follows: mobile phone, tablet computer, television set, aobvious
Show any products or components having a display function such as device, laptop, Digital Frame, navigator.For the display device
Other essential component parts be it will be apparent to an ordinarily skilled person in the art that having, this will not be repeated here,
Also it should not be taken as limiting the invention.
Display panel, preparation method, detection method and display device provided in an embodiment of the present invention, by detection signal
Setting detection transistor between line and corresponding drive signal line, and by setting first switch transistor to control all inspections
It surveys transistor to be connected in lighting detection-phase, light detection signal will be put be supplied to viewing area and light display panel.In reliability
Detection-phase, the signal loaded by third control signal wire control all detection transistor cutoffs, with will test signal wire with
Drive signal line is opened by detection transistor partition, so as to avoid the extension due to signal lines corrosion sites from influencing to drive
The transmission of signal in dynamic signal wire, and then avoid display abnormal.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (13)
1. a kind of display panel, comprising: underlay substrate is used on the underlay substrate to the viewing area of the display panel
The a plurality of drive signal line of input drive signal, and the detection signal being electrically connected is corresponded with each drive signal line
Line, which is characterized in that the display panel further include: first switch transistor, first control signal line, second control signal
Line, third control signal wire and transistor is detected correspondingly with each signal lines；Wherein, each detection
Signal wire is electrically connected by the corresponding detection transistor with corresponding drive signal line；
The grid of the first switch transistor is electrically connected with the first control signal line, and the of the first switch transistor
One pole is electrically connected with the second control signal line, and the second pole of the first switch transistor is controlled with the third respectively believes
The grid electrical connection of number line and all detection transistors.
2. display panel as described in claim 1, which is characterized in that the display panel further include: second switch transistor,
4th control signal wire and the 5th control signal wire；Second pole of the first switch transistor is brilliant by the second switch
Body pipe is electrically connected with the grid of each detection transistor；
The grid of the second switch transistor is controlled with the second pole of the first switch transistor and the described 4th respectively
Signal wire electrical connection, the first pole of the second switch transistor are electrically connected with the 5th control signal wire, and described second opens
The second pole for closing transistor is electrically connected with the grid of each detection transistor respectively.
3. display panel as claimed in claim 2, which is characterized in that each detection transistor is P-type transistor, described
5th control signal wire is electrically connected with the signal lines for loading the signal lines of low level signal；Alternatively,
Each detection transistor is N-type transistor, for adding in the 5th control signal wire and the signal lines
Carry the signal lines electrical connection of high level signal.
4. display panel as claimed in claim 2, which is characterized in that the 4th control signal wire and each driving signal
Line same layer same material.
5. display panel according to any one of claims 1-4, which is characterized in that the drive signal line and the detection are believed
The different floor setting of number line.
6. display panel as claimed in claim 5, which is characterized in that the third control signal wire and each driving signal
Line same layer same material；And/or
The first control signal line, the second control signal line, each signal lines and all transistors grid
Pole same layer same material.
7. display panel according to any one of claims 1-4, which is characterized in that the second control signal line is broken line
Shape；And/or the material of the active layer of all transistors is polysilicon.
8. a kind of display device, which is characterized in that including such as described in any item display panels of claim 1-7 and driving electricity
Road；Wherein, the driving circuit is electrically connected with each drive signal line and the third control signal wire respectively.
9. display device as claimed in claim 8, which is characterized in that the driving circuit is also electrically connected with the 4th control signal wire
It connects.
10. a kind of preparation method of such as described in any item display panels of claim 1-7 characterized by comprising
Each drive signal line, each signal lines, the first control letter are respectively formed on the underlay substrate
Number line, the second control signal line, the third control signal wire, the first switch transistor and each detection are brilliant
The figure of body pipe.
11. preparation method as claimed in claim 10, which is characterized in that the preparation method further include: in the substrate base
The figure of the second switch transistor, the 4th control signal wire and the 5th control signal wire is respectively formed on plate
Shape.
12. a kind of detection method of such as described in any item display panels of claim 1-7 characterized by comprising
In lighting detection-phase, the first control signal of the first level is loaded to the first control signal line, to described second
Control signal wire loads the second control signal of the first level, and loads corresponding lighting to each signal lines and detect
Signal controls each detection transistor turns, and the control display surface to control the first switch transistor turns
Plate is lighted；
In reliability detection-phase, signal is controlled to the third of third control signal wire load second electrical level, and to each
The drive signal line loads corresponding driving signal, to control each detection transistor cutoff, and the control display
Panel is lighted.
13. detection method as claimed in claim 12, which is characterized in that in the lighting detection-phase, the detection method
Further include: the 5th control signal of the first level is loaded to the 5th control signal wire；
In the reliability detection-phase, the detection method further include: load second electrical level to the 4th control signal wire
The 4th control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910066910.2A CN109697938B (en) | 2019-01-24 | 2019-01-24 | Display panel, preparation method, detection method and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910066910.2A CN109697938B (en) | 2019-01-24 | 2019-01-24 | Display panel, preparation method, detection method and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109697938A true CN109697938A (en) | 2019-04-30 |
| CN109697938B CN109697938B (en) | 2021-11-30 |
Family
ID=66234196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910066910.2A Active CN109697938B (en) | 2019-01-24 | 2019-01-24 | Display panel, preparation method, detection method and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109697938B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110189672A (en) * | 2019-06-27 | 2019-08-30 | 京东方科技集团股份有限公司 | A kind of display panel, its detection method and display device |
| CN111261055A (en) * | 2020-01-21 | 2020-06-09 | 京东方科技集团股份有限公司 | OLED display screen and OLED display device |
| CN111583842A (en) * | 2020-05-29 | 2020-08-25 | 京东方科技集团股份有限公司 | Display panel, display device and disconnection detection method thereof |
| CN113448131A (en) * | 2021-06-23 | 2021-09-28 | 惠科股份有限公司 | Display panel and test method thereof |
| CN113539131A (en) * | 2021-07-20 | 2021-10-22 | 京东方科技集团股份有限公司 | Display panel and manufacturing method thereof, display mother board and detection method thereof, and display device |
| CN113643636A (en) * | 2021-10-14 | 2021-11-12 | 惠科股份有限公司 | Test circuit of display panel and display device |
| GB2614817A (en) * | 2021-10-14 | 2023-07-19 | Hkc Corp Ltd | Test circuit of display panel and display device |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101131805A (en) * | 2006-08-23 | 2008-02-27 | 三星Sdi株式会社 | Organic light emitting display device and mother substrate of the same |
| CN101231626A (en) * | 2007-01-25 | 2008-07-30 | 富士通株式会社 | Interface circuit and semiconductor integrated circuit |
| CN101364022A (en) * | 2008-09-12 | 2009-02-11 | 昆山龙腾光电有限公司 | Array substrate and defect detecting method thereof |
| CN102800668A (en) * | 2012-08-09 | 2012-11-28 | 京东方科技集团股份有限公司 | Thin-film field effect transistor array substrate and manufacturing method thereof |
| CN104483795A (en) * | 2015-01-04 | 2015-04-01 | 京东方科技集团股份有限公司 | Array substrate, array substrate detection method, display panel and display device |
| WO2015128920A1 (en) * | 2014-02-25 | 2015-09-03 | 株式会社Ｊｏｌｅｄ | Method for manufacturing electroluminescent display device |
| CN105304517A (en) * | 2015-10-23 | 2016-02-03 | 信利（惠州）智能显示有限公司 | Organic light emitting diode display substrate, detection circuit and isolation circuit thereof |
| CN105632383A (en) * | 2016-01-11 | 2016-06-01 | 京东方科技集团股份有限公司 | Test circuit, test method, display panel and display device |
| US20160195740A1 (en) * | 2015-01-06 | 2016-07-07 | Samsung Display Co., Ltd. | Liquid crystal display |
| CN108122804A (en) * | 2017-12-15 | 2018-06-05 | 武汉华星光电半导体显示技术有限公司 | Tft array substrate full-contact measurement circuit |
| CN108182895A (en) * | 2017-12-12 | 2018-06-19 | 武汉华星光电技术有限公司 | It is a kind of to be used to detect the circuit of pixel potential and method, display panel in display panel |
| US20180224340A1 (en) * | 2017-02-09 | 2018-08-09 | Microsoft Technology Licensing, Llc | Measuring strain on display device |
| CN108565278A (en) * | 2018-02-28 | 2018-09-21 | 京东方科技集团股份有限公司 | Array substrate motherboard, array substrate, display device and preparation method thereof |
| CN108646941A (en) * | 2018-04-26 | 2018-10-12 | 武汉华星光电技术有限公司 | The detection method of tft array substrate and tft array substrate |
| CN108885236A (en) * | 2016-04-20 | 2018-11-23 | 住友电装株式会社 | Break detection circuit and electric circuit connection container |
-
2019
- 2019-01-24 CN CN201910066910.2A patent/CN109697938B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101131805A (en) * | 2006-08-23 | 2008-02-27 | 三星Sdi株式会社 | Organic light emitting display device and mother substrate of the same |
| CN101231626A (en) * | 2007-01-25 | 2008-07-30 | 富士通株式会社 | Interface circuit and semiconductor integrated circuit |
| CN101364022A (en) * | 2008-09-12 | 2009-02-11 | 昆山龙腾光电有限公司 | Array substrate and defect detecting method thereof |
| CN102800668A (en) * | 2012-08-09 | 2012-11-28 | 京东方科技集团股份有限公司 | Thin-film field effect transistor array substrate and manufacturing method thereof |
| WO2015128920A1 (en) * | 2014-02-25 | 2015-09-03 | 株式会社Ｊｏｌｅｄ | Method for manufacturing electroluminescent display device |
| CN104483795A (en) * | 2015-01-04 | 2015-04-01 | 京东方科技集团股份有限公司 | Array substrate, array substrate detection method, display panel and display device |
| US20160195740A1 (en) * | 2015-01-06 | 2016-07-07 | Samsung Display Co., Ltd. | Liquid crystal display |
| CN105304517A (en) * | 2015-10-23 | 2016-02-03 | 信利（惠州）智能显示有限公司 | Organic light emitting diode display substrate, detection circuit and isolation circuit thereof |
| CN105632383A (en) * | 2016-01-11 | 2016-06-01 | 京东方科技集团股份有限公司 | Test circuit, test method, display panel and display device |
| CN108885236A (en) * | 2016-04-20 | 2018-11-23 | 住友电装株式会社 | Break detection circuit and electric circuit connection container |
| US20180224340A1 (en) * | 2017-02-09 | 2018-08-09 | Microsoft Technology Licensing, Llc | Measuring strain on display device |
| CN108182895A (en) * | 2017-12-12 | 2018-06-19 | 武汉华星光电技术有限公司 | It is a kind of to be used to detect the circuit of pixel potential and method, display panel in display panel |
| CN108122804A (en) * | 2017-12-15 | 2018-06-05 | 武汉华星光电半导体显示技术有限公司 | Tft array substrate full-contact measurement circuit |
| CN108565278A (en) * | 2018-02-28 | 2018-09-21 | 京东方科技集团股份有限公司 | Array substrate motherboard, array substrate, display device and preparation method thereof |
| CN108646941A (en) * | 2018-04-26 | 2018-10-12 | 武汉华星光电技术有限公司 | The detection method of tft array substrate and tft array substrate |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110189672A (en) * | 2019-06-27 | 2019-08-30 | 京东方科技集团股份有限公司 | A kind of display panel, its detection method and display device |
| CN111261055A (en) * | 2020-01-21 | 2020-06-09 | 京东方科技集团股份有限公司 | OLED display screen and OLED display device |
| CN111261055B (en) * | 2020-01-21 | 2022-02-22 | 京东方科技集团股份有限公司 | OLED display screen and OLED display device |
| CN111583842A (en) * | 2020-05-29 | 2020-08-25 | 京东方科技集团股份有限公司 | Display panel, display device and disconnection detection method thereof |
| CN113448131A (en) * | 2021-06-23 | 2021-09-28 | 惠科股份有限公司 | Display panel and test method thereof |
| CN113539131A (en) * | 2021-07-20 | 2021-10-22 | 京东方科技集团股份有限公司 | Display panel and manufacturing method thereof, display mother board and detection method thereof, and display device |
| CN113643636A (en) * | 2021-10-14 | 2021-11-12 | 惠科股份有限公司 | Test circuit of display panel and display device |
| WO2023060780A1 (en) * | 2021-10-14 | 2023-04-20 | 惠科股份有限公司 | Test circuit of display panel and display device |
| GB2614817A (en) * | 2021-10-14 | 2023-07-19 | Hkc Corp Ltd | Test circuit of display panel and display device |
| GB2614817B (en) * | 2021-10-14 | 2024-02-14 | Hkc Corp Ltd | Test circuit of display panel and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109697938B (en) | 2021-11-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109697938A (en) | Display panel, preparation method, detection method and display device | |
| US11232728B2 (en) | Display panel and crack detecting method thereof, display apparatus | |
| KR20230047990A (en) | Display device | |
| WO2016206224A1 (en) | In-cell touch display panel, driving method therefor, and display device | |
| CN107170400B (en) | Electroluminescent display panel, detection method thereof and display device | |
| CN111682011B (en) | Display substrate, detection method and preparation method thereof, and display panel | |
| CN110827730B (en) | Circuit and method for detecting characteristics of transistors in pixel region of LTPSAMOLED display substrate | |
| US10362651B2 (en) | Micro lighting device | |
| CN110190106B (en) | Display panel, preparation method and detection method thereof, and display device | |
| US20230045160A1 (en) | Method for manufacturing a display device using a semiconductor light emitting device and a self-assembly apparatus used therefor | |
| CN113811938B (en) | Display substrate and testing method thereof | |
| CN110189672B (en) | Display panel, detection method thereof and display device | |
| CN114639328A (en) | Display panel and display device | |
| US8242492B2 (en) | Organic light emitting diode display | |
| CN112885845A (en) | Crack detection method, display substrate and display device | |
| CN105070740A (en) | Array substrate and preparation method thereof, display panel and display apparatus | |
| CN113466252A (en) | Display panel, detection method of display panel and display device | |
| CN211044987U (en) | Display panel and display device | |
| CN204991708U (en) | Array substrate and display panel | |
| CN112259576B (en) | Array substrate, display panel and display device | |
| JP2021157060A (en) | Inspection method for array substrate, and display device | |
| CN113485586A (en) | Touch control display panel | |
| JP6927805B2 (en) | Light emitting element substrate inspection method and light emitting element substrate | |
| WO2022205260A1 (en) | Pixel driving circuit, driving method therefor, and display panel | |
| KR100796619B1 (en) | Array substrate for organic light emitting diode display |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |