CN111798795A - Display device - Google Patents
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- CN111798795A CN111798795A CN202010622920.2A CN202010622920A CN111798795A CN 111798795 A CN111798795 A CN 111798795A CN 202010622920 A CN202010622920 A CN 202010622920A CN 111798795 A CN111798795 A CN 111798795A
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- display device
- display area
- detection unit
- switch units
- signal line
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- 238000001514 detection method Methods 0.000 claims abstract description 60
- 238000009434 installation Methods 0.000 claims abstract description 15
- 238000003466 welding Methods 0.000 claims 2
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 230000002950 deficient Effects 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application discloses a display device. The display device includes: the display device comprises a display area and a non-display area arranged around the display area; the mounting area is arranged in the non-display area and comprises a first mounting part and a second mounting part positioned between the first mounting part and the display area, the first mounting part is used for connecting a signal input end of a driving device, the second mounting part is used for connecting a signal output end of the driving device, and the second mounting part is electrically connected with the display area through a first connecting wire; and the first detection unit is electrically connected with the second installation part and is used for detecting whether the first connecting line is disconnected or not. Therefore, whether the first connecting line is abnormal or not can be detected through the first detection unit.
Description
Technical Field
The present application relates to the field of display panel technology, and more particularly, to a display device.
Background
In a conventional OLED (organic light-Emitting Diode) display device, a display region and a driving device disposed on a non-display region are generally included; wherein the driving device is disposed in the non-display area for controlling display in the display area.
However, the line between the position of the driving device and the display area position in the above display device cannot be detected, and thus a problem of a defective display device may occur.
Disclosure of Invention
The present application provides a display device to solve the above technical problem.
In order to solve the technical problem, the application adopts a technical scheme that: provided is a display device including: the display device comprises a display area and a non-display area arranged around the display area, wherein a plurality of pixels arranged in an array are arranged in the display area; the display device comprises a display area and a non-display area arranged around the display area, wherein a plurality of pixels arranged in an array are arranged in the display area; the mounting area is arranged in the non-display area and comprises a first mounting part and a second mounting part positioned between the first mounting part and the display area, the first mounting part is used for connecting a signal input end of a driving device, the second mounting part is used for connecting a signal output end of the driving device, and the second mounting part is electrically connected with the display area through a first connecting wire; and the first detection unit is electrically connected with the second installation part and is used for detecting whether the first connecting line is disconnected or not.
Optionally, the second mounting portion includes a plurality of pads arranged at intervals, and each pad is connected to one end of one of the first connection lines; the other end of the first connecting wire is connected with a data wire in the display area, and the data wire is used for inputting a driving signal to the pixel to drive the pixel to emit light.
Optionally, the first detection unit is located between the first mounting portion and the second mounting portion.
Optionally, the first detecting unit includes a plurality of first switch units, the number of the first switch units is equal to that of the pads, the first switch units correspond to the pads one by one, the first switch units are used for controlling on/off between the detecting signal lines and the corresponding pads, and on/off of the first switch units is controlled by a first control signal line.
Optionally, the display device further includes a second detection unit, the second detection unit is located between the second installation portion and the display area, and the second detection unit is configured to detect whether the pixel normally operates.
Optionally, the second detection unit includes a plurality of second switch units, the number of the second switch units is equal to that of the first connection lines, the second switch units are in one-to-one correspondence with the first connection lines, the second switch units are used for controlling on/off between the second detection signal lines and the corresponding first connection lines, and on/off of the second switch units is controlled by a second control signal line.
Optionally, the first switch unit and the second switch unit cannot be turned on simultaneously.
Optionally, the voltage signals on the first control signal line and the second control signal line are direct current signals.
Optionally, the absolute values of the voltages on the first control signal line and the second control signal line are equal.
Optionally, in a direction pointing to the second mounting portion along the first mounting portion, a width of the first detection unit is smaller than a width of the second detection unit.
The beneficial effect of this application is: being different from the prior art's condition, this application provides a display device, connects first detecting element through adding to can detect the first connecting line that connects between drive arrangement and display area is whole, avoid leading to appearing the unusual problem of first connecting line.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
fig. 1 is a schematic structural diagram of an embodiment of a display device provided in the present application;
FIG. 2 is a schematic structural diagram of a first detecting unit in the display device shown in FIG. 1;
fig. 3 is a schematic structural diagram of a second detecting unit in the display device shown in fig. 1.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are referred to in the embodiments of the present application, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a display device provided in the present application.
The display device 10 includes a display area 101 and a non-display area 102, the display area 101 is disposed at a middle position of the display device 10, and the non-display area 102 is disposed around the display area 101. A plurality of pixels arranged in an array are disposed in the display area 101, so that a light emitting area of the display device 10 can be formed. In this embodiment, the display device 10 may be an OLED display device or a liquid crystal display device.
In the non-display area 102, a mounting area 110 is further disposed, and the mounting area 110 may be used for mounting a driving device (not shown). The first mounting portion 111 and the second mounting portion 112 may be disposed in the mounting area 110, each of the first mounting portion 111 and the second mounting portion 112 includes a plurality of sub-mounting portions disposed at intervals, each of the sub-mounting portions may be a pad, and a center line of a plurality of pads of the first mounting portion 111 and a center line of a plurality of pads of the second mounting portion 112 may be disposed in parallel. The pads of the first and second mounting portions 111 and 112, which are disposed at intervals, may be electrically connected to the pins of the driving device in a one-to-one correspondence manner.
The first mounting portion 111 may be connected to a signal input end of the driving device, and an external power source or a control signal may be electrically connected to the driving device through the first mounting portion 111; the second mounting portion 112 may be connected to a signal output terminal of the driving device and one first connection line 120 is connected to each pad on the second mounting portion 112, so that the output terminal of the driving device is electrically connected to the data line of the display area 101 through the first connection line 120. Therefore, an external power or a control signal may be transmitted to the pixels in the display area 101 through the first mounting portion 111, the driving device, the second mounting portion 112, and the first connecting line 120, thereby enabling the pixels in the display area 101 to perform a normal operation.
The second mounting portion 112 is disposed on a side close to the display area 101, and the first mounting portion 111 is disposed on a side of the second mounting portion 112 away from the display area 101, that is, the second mounting portion 112 is disposed between the first mounting portion 111 and the display area 101.
Further, a first detection unit 200 is also provided in the non-display area 102. The first detecting unit 200 may be disposed between the first mounting portion 111 and the second mounting portion 112, and the first detecting unit 200 may be electrically connected to the first connecting line 120 through the second mounting portion 112, so that the first connecting line 120 may be detected to determine whether the first connecting line 120 is broken.
The first detecting unit 200 may include a first detecting signal line 210, a first control signal line 220, and a first switching unit 230, wherein the first switching unit 230 is configured to control on/off of connection between the first detecting signal line 210 and the first connecting line 120, and the first control signal line 220 is configured to control on/off of the first switching unit 230.
The first detection signal line 210 and the first control signal line 220 may be two conductive lines disposed in parallel and spaced apart from each other. The first detection signal line 210 and the first control signal line 220 may be disposed in parallel with the scan line in the display area 101. In the detection of the display device 10, the first detection signal line 210 and the first control signal line 220 may be connected to an external power source or control device (wherein the external power source or control device may be an external detection device).
Referring to fig. 2, fig. 2 is a schematic structural diagram of a first detecting unit in the display device shown in fig. 1.
Specifically, in the embodiment of the present application, the first switch unit 230 may be a Thin Film Transistor (TFT), the first switch unit 230 may be formed in synchronization with a TFT corresponding to a pixel in the display area 101, the first detection signal line 210 is connected to a source of the first switch unit 230, a drain of the first switch unit 230 is connected to a pad on the second installation portion 112, and the first control signal line 220 is connected to a gate of the first switch unit 230; when the first control signal line 220 controls the first switch unit 230 to be turned on, the first connection line 120 connected to the first detection signal line 210 may be turned on, so that the detection signal output by the first detection signal line 210 may pass through the first switch unit 230 and the second installation part 112, and then be electrically transmitted to the display region 101 through the first connection line 120, so that the pixels of the display region 101 emit light to detect whether the first connection line 120 is disconnected. When the first control signal line 220 controls the first switch unit 230 to be turned off, the first detection signal line 210 and the first connection line 120 are in an open circuit state.
As described above, the second mounting portion 112 may include a plurality of pads spaced apart from each other, and each pad may be connected to the first connection line 120. Therefore, the first sensing unit 200 may include several first switching units 230, wherein each pad of the second mounting part 112 may be electrically connected to the first sensing signal line 210 through one first switching unit 230.
The first detecting unit 200 may only have one first detecting signal line 210, and the pads of the second mounting portion 112 may be electrically connected to the first detecting signal line 210 through the first switch units 230, respectively.
Note that, in the display device 10, since the size of the driving device is generally smaller than that of the display region 101, when the first connecting line 120 is electrically connected to the data line in the display region 101, a diagonal line portion (not shown) may be further provided on the first connecting line 120 to connect the first connecting line 120 to the data line at the end of the display region 101 according to the wiring requirement.
Therefore, the first connection line 120 and the pixel in the display area 101 connected thereto can be detected by the first detection unit 200, so that the line from the second mounting portion 112 to the pixel in the display area 101 can be detected, and the problem of defective products of the display device 10 can be avoided.
Please further refer to fig. 1 and 2.
In the embodiment of the present application, the first sensing unit 200 may include only one first sensing signal line 210 and one first control signal line 220, so that the first sensing unit 200 has a simple structure, requires a small installation area, and may be installed between the first and second installation parts 111 and 112, thereby improving space utilization of the display device 10.
Further, the first detecting unit 200 may be disposed on a side of the first mounting portion 111 away from the second mounting portion 112, and the output end of the first switching unit 230 may be connected to the second mounting portion 112 by providing a thin lead.
It should be noted that the first detecting unit 200 can drive a whole row of pixels connected by the first connecting line 120, so that the pixels in the display area 101 can display a black frame or a white frame, or any gray-scale frame between the black frame and the white frame.
Referring to fig. 1 and 3, fig. 3 is a schematic structural diagram of a second detecting unit 300 in the display device shown in fig. 1.
In an embodiment of the present application, the display apparatus 10 may further include a second detection unit 300, wherein the second detection unit 300 is disposed in the non-display area 102.
Wherein the second detecting unit 300 is disposed between the second mounting part 112 and the display area 101, and is used for detecting whether the pixels in the display area 101 are normally operated.
The second detecting unit 300 may be connected to the first connecting line 120, and the first connecting line 120 is connected to a plurality of pixels in the display area 101 through a portion between the second detecting unit 200 and the display area. When the second detecting unit 300 is used to detect the display device 10, the second detecting unit 300 can only detect whether the plurality of pixels in the display area 101 and a portion of the first connecting line 120 between the second detecting unit 300 and the display area 101 can work normally. However, since it is only determined whether the first connection line 120 is broken and the position of the first connection line 120 short-circuited when the first detection unit detects whether the first connection line 120 is broken, the present application detects whether a portion of the first connection line 120 between the second detection unit 200 and the display area is broken by providing the second detection unit 300, thereby more accurately locating the position of the first connection line 120 where the first connection line 120 is broken.
The second sensing unit 300 may include a second sensing signal line 310, a second control signal line 320, and a second switching unit 330, which are the same as the first sensing unit 200. Similarly, the second switch unit 330 may also be a thin film transistor, wherein the source of the second switch unit 330 may be electrically connected to the second detection signal line 310, and the drain of the second switch unit 330 is electrically connected to the first connection line 120. The second control signal line 320 is connected to a gate of the second switching unit 330 to control on/off of the second switching unit 330. The second detection signal line 310 may supply a driving signal to the data line of the pixel in the display area 101 through the first connection line 120 through the second switching unit 330, so that the pixel in the display area 101 may be driven to emit light.
In addition, whether the pixels in the display area 101 can operate normally can also be checked by the second detection unit 300. The second detection unit 300 can drive the pixels in the display device 10 to display a black frame or a white frame, or any gray-scale frame between the black frame and the white frame; the pixels in the display device 10 may also be driven to display different monochrome pictures, such as a red picture, a blue picture or a green picture; alternatively, the pixels in the display device 10 may be driven to display different color pictures.
The second detecting unit 300 may include at least three sub-detecting units. The three sub-detection units may be respectively electrically connected to data lines corresponding to the red sub-pixel, the blue sub-pixel, and the green sub-pixel of the pixels in the display area 101, so as to respectively detect whether the red sub-pixel, the blue sub-pixel, and the green sub-pixel can work normally.
The second detecting unit 300 may include a first sub-detecting unit 301, a second sub-detecting unit 302, and a third sub-detecting unit 303. The first sub-detecting unit 301, the second sub-detecting unit 302, and the third sub-detecting unit 303 may each include a second detecting signal line 310, a second control signal line 320, and a second switching unit 330.
That is, the second detecting unit 300 composed of the first sub-detecting unit 301, the second sub-detecting unit 302, and the third sub-detecting unit 303 may include three second detecting signal lines 310, three second control signal lines 320, and at least three second switching units 330.
Among them, the three second detection signal lines 310 and the three second control signal lines 320 are arranged in parallel and at intervals, so that the size of the first detection unit 200 is smaller than that of the second detection unit 300. Specifically, the width of the first sensing unit 200 is smaller than the width of the second sensing unit 300 in a direction along the first mounting portion 111 toward the second mounting portion 112.
In the present embodiment, when the display device 10 is detected, the first switch unit 230 and the second switch unit 330 cannot be simultaneously turned on.
Taking the first switch unit 230 and the second switch unit 330 as P-type transistors for example, when the first detection unit 200 works normally, the gate of the second switch unit 330 in the second detection unit 300 is at a high level, and the second switch unit 330 is in an off state; when the second detecting unit 300 works normally, the gate of the first switching unit 230 in the first detecting unit 200 is at a high level, and the first detecting unit 200 is in an off state.
Alternatively, the voltages on the first detection signal line 210 and the second detection signal line 310 are dc signals and have equal absolute values. Specifically, the first detection signal line 210 and the second detection signal line 310 can input a direct current signal of ± 7V, and can simulate the voltage state of the display device during actual operation when the first detection unit 200 and the second detection unit 300 perform detection, so that the detection effect is more accurate. In other embodiments, the first detection signal line 210 may also input a dc signal with other voltage values, which is not further limited herein.
In summary, the present application provides a display device. Through adding the first detecting element who connects the second installation department to can detect the whole first connecting wire of connection between second installation department and display area, thereby avoid appearing the problem that first connecting wire is unusual to miss examining. Meanwhile, the first detection unit is simple in structure, and the first detection unit is arranged between the first installation part and the second installation part, so that the size of the display device is not required to be increased, and the space utilization efficiency of the display device can be improved.
The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (10)
1. A display device, characterized in that the display device comprises:
the display device comprises a display area and a non-display area arranged around the display area, wherein a plurality of pixels arranged in an array are arranged in the display area;
the mounting area is arranged in the non-display area and comprises a first mounting part and a second mounting part positioned between the first mounting part and the display area, the first mounting part is used for connecting a signal input end of a driving device, the second mounting part is used for connecting a signal output end of the driving device, and the second mounting part is electrically connected with the display area through a first connecting wire;
and the first detection unit is electrically connected with the second installation part and is used for detecting whether the first connecting line is disconnected or not.
2. The display device according to claim 1,
the second mounting part comprises a plurality of welding pads arranged at intervals, and each welding pad is connected with one end of one first connecting wire;
the other end of the first connecting wire is connected with a data wire in the display area, and the data wire is used for inputting a driving signal to the pixel to drive the pixel to emit light.
3. The display device according to claim 1,
the first detection unit is located between the first installation part and the second installation part.
4. The display device according to claim 3,
the first detection unit comprises a plurality of first switch units, the number of the first switch units is equal to that of the bonding pads, the first switch units correspond to the bonding pads one by one, the first switch units are used for controlling the on-off between the detection signal lines and the corresponding bonding pads, and the on-off of the first switch units is controlled by a first control signal line.
5. The display device according to claim 4,
the display device further comprises a second detection unit, the second detection unit is located between the second installation part and the display area, and the second detection unit is used for detecting whether the pixels work normally or not.
6. The display device according to claim 5,
the second detection unit comprises a plurality of second switch units, the number of the second switch units is equal to that of the first connection lines, the second switch units are in one-to-one correspondence with the first connection lines, the second switch units are used for controlling the on-off between the second detection signal lines and the corresponding first connection lines, and the on-off of the second switch units is controlled by a second control signal line.
7. The display device according to claim 6,
the first switching unit and the second switching unit cannot be simultaneously turned on.
8. The display device according to claim 7,
the voltage signals on the first control signal line and the second control signal line are direct current signals.
9. The display device according to claim 8,
the absolute values of the voltages on the first control signal line and the second control signal line are equal.
10. The display device according to claim 5, wherein a width of the first detection unit is smaller than a width of the second detection unit in a direction pointing to the second mounting portion along the first mounting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010622920.2A CN111798795A (en) | 2020-06-30 | 2020-06-30 | Display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010622920.2A CN111798795A (en) | 2020-06-30 | 2020-06-30 | Display device |
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|---|---|
| CN111798795A true CN111798795A (en) | 2020-10-20 |
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|---|---|---|---|
| CN202010622920.2A Pending CN111798795A (en) | 2020-06-30 | 2020-06-30 | Display device |
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