CN111625131A - Display device and electronic apparatus - Google Patents
Display device and electronic apparatus Download PDFInfo
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- CN111625131A CN111625131A CN202010413766.8A CN202010413766A CN111625131A CN 111625131 A CN111625131 A CN 111625131A CN 202010413766 A CN202010413766 A CN 202010413766A CN 111625131 A CN111625131 A CN 111625131A
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- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 2
- 230000005669 field effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- Liquid Crystal Display Device Control (AREA)
Abstract
The application discloses display device and electronic equipment, in this display device, touch-control driver chip's first signal output part can be simultaneously with corresponding first electrode and second electrode electric connection, under the control of first control signal and second control signal, control the connection between corresponding first electrode and the touch-control driver chip and the connection between corresponding second electrode and the touch-control driver chip through first the control unit, realize the control of same touch-control driver chip to first touch-sensitive screen and second touch-sensitive screen. According to the scheme, the number of the touch driving chips is effectively reduced, and further the production cost is saved.
Description
Technical Field
The application relates to the technical field of display, in particular to a display device and electronic equipment.
Background
At present, a flexible OLED (organic light-Emitting Diode) gradually replaces a conventional hard-screen LCD (Liquid Crystal Display) to become a Display screen of various Display devices, and especially, the flexible OLED can be bent and folded, so that more possibilities are brought to the appearance design of the Display device. For example, a foldable smart phone includes a large-sized inner screen and a small-sized outer screen, and is in a mobile phone shape when folded, and is in a flat state after being folded inwards, so that one machine has multiple functions.
However, after the foldable display screen in this form appears, the display device may include a plurality of touch screens, and the number of electronic components that are configured therewith may be correspondingly increased, for example, a touch driving chip is usually required for each touch screen to be controlled separately, which may increase the production cost.
Disclosure of Invention
The embodiment of the application provides a display device and electronic equipment, and aims to solve the technical problem that the number of touch driving chips in the display device with a plurality of touch screens is large, and further the production cost is increased.
The application provides a display device, it includes:
a first touch screen comprising a plurality of first electrodes;
a second touch screen comprising a plurality of second electrodes;
the touch control driving chip is provided with a plurality of first signal output ends;
each first control unit is provided with a first control end, a second control end, a first input end, a first output end and a second output end, the first control end is connected with a first control signal, the second control end is connected with a second control signal, the first input end is electrically connected with the corresponding first signal output end, the first output end is electrically connected with the corresponding first electrode, and the second output end is electrically connected with the corresponding second electrode; wherein,
the first control unit is used for controlling connection between the corresponding first electrode and the touch driving chip and connection between the corresponding second electrode and the touch driving chip under the control of the first control signal and the second control signal.
In the display device provided by the present application, each of the first control units includes a first transistor, and the first transistor is disposed corresponding to the corresponding first electrode;
the grid electrode of the first transistor is electrically connected with the first control end; the source of the first transistor is electrically connected to the first input terminal, and the drain of the first transistor is electrically connected to the first output terminal.
In the display device provided by the present application, each of the first control units further includes a second transistor, and the second transistor is disposed corresponding to the corresponding second electrode;
the grid electrode of the second transistor is electrically connected with the second control end; the source of the second transistor is electrically connected to the first input terminal, and the drain of the second transistor is electrically connected to the second output terminal.
In the display device provided by the present application, the first transistor and the second transistor are both transistors of the same type.
In the display device provided by the application, the potential of the first control signal is opposite to the potential of the second control signal.
In the display device provided by the application, the display device further comprises at least one second control unit, the second control unit is provided with a third control end, a second input end and a third output end, the third control end is connected to the second control signal, the second input end is electrically connected with the corresponding first signal output end, and the third output end is electrically connected with the corresponding second electrode;
the second control unit is used for controlling connection between the corresponding second electrode and the touch driving chip under the control of the second control signal.
In the display device provided by the present application, the second control unit includes a third transistor;
the grid electrode of the third transistor is electrically connected with the third control end; the source of the third transistor is electrically connected to the second input terminal, and the drain of the third transistor is electrically connected to the third output terminal.
In the display device provided by the present application, the first electrode and the second electrode are both touch receiving electrodes or touch sensing electrodes.
In the display device provided by the application, the first touch screen and the second touch screen are flat touch screens or foldable touch screens.
Correspondingly, the application also provides electronic equipment which comprises the display device.
The application provides a display device and electronic equipment, in this display device, touch-control driver chip's first signal output part can be simultaneously with corresponding first electrode and second electrode electric connection, simultaneously through first the control unit under the control of first control signal and second control signal, control the connection between corresponding first electrode and the touch-control driver chip and the connection between corresponding second electrode and the touch-control driver chip, realize the control of same touch-control driver chip to first touch-sensitive screen and second touch-sensitive screen, the quantity of touch-control driver chip has effectively been reduced, and then manufacturing cost has been practiced thrift.
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, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of a first structure of a display device provided in an embodiment of the present application;
fig. 2 is a second structural schematic diagram of a display device provided in the embodiment of the present application;
fig. 3 is a schematic diagram of a third structure of a display device provided in an embodiment of the present application;
fig. 4 is a fourth structural schematic diagram of a display device provided in the embodiment of the present application.
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.
In the description of the present application, it is to be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second", etc. may explicitly or implicitly include one or more of the described features and are therefore not to be construed as limiting the application.
Referring to fig. 1, fig. 1 is a schematic view of a first structure of a display device according to an embodiment of the present disclosure. As shown in fig. 1. The display device includes: the touch screen device comprises a first touch screen 10, a second touch screen 20, a touch driving chip 30 and a plurality of first control units 41.
Wherein the first touch screen 10 comprises a plurality of first electrodes 11. The second touch screen 20 includes a plurality of second electrodes 21. The touch driving chip 30 has a plurality of first signal output terminals p. Each of the first control units 41 has a first control terminal a, a second control terminal b, a first input terminal c, a first output terminal d, and a second output terminal e. The first control terminal a is connected to a first control signal MUX 1. The second control terminal b is connected to a second control signal MUX 2. The first input terminal c is electrically connected to the corresponding first signal output terminal p. The first output end d is electrically connected to the corresponding first electrode 11. The second output end e is electrically connected with the corresponding second electrode 21; wherein,
the first control unit 41 is used for controlling the connection between the corresponding first electrode 11 and the touch driving chip 30 and the connection between the corresponding second electrode 21 and the touch driving chip 30 under the control of the first control signal MUX1 and the second control signal MUX 2.
Specifically, when the first touch screen 10 is in a touch state, the first control unit 41, under the control of the first control signal MUX1 and the second control signal MUX2, connects the corresponding first electrode 11 with the touch driving chip 30, disconnects the corresponding second electrode 21 from the touch driving chip 30, and the touch driving chip 30 transmits a signal to the corresponding first electrode 11 through the first signal output end p. When the second touch screen 20 is in a touch state, the first control unit 41, under the control of the first control signal MUX1 and the second control signal MUX2, disconnects the corresponding first electrode 11 from the touch driving chip 30, connects the corresponding second electrode 21 to the touch driving chip 30, and the touch driving chip 30 transmits a signal to the corresponding second electrode 21 through the first signal output end p. Therefore, the same touch driving chip 30 can control the first touch screen 10 and the second touch screen 20 at the same time, which effectively reduces the number of touch driving chips 30.
It should be noted that, in some embodiments, the first control unit 41, under the control of the first control signal MUX1 and the second control signal MUX2, enables connection between the corresponding first electrode 11 and the touch driving chip 30, and connection between the corresponding second electrode 21 and the touch driving chip 30. At this time, the first touch screen 10 and the second touch screen are simultaneously in a touch state, and the touch driving chip 30 transmits signals to the corresponding first electrode 11 and the corresponding second electrode 21 through the first signal output end p.
In addition, the first electrode 11 and the second electrode 21 are both touch receiving electrodes or touch sensing electrodes. The touch receiving electrodes or the touch sensing electrodes are arranged in a cross insulation mode. It should be noted that the touch receiving electrode and the touch sensing electrode are well known to those skilled in the art, and are not described herein again.
The first touch screen 10 and the second touch screen 20 are two touch screens independently disposed, and may be disposed on the same side of the display device or disposed on different sides of the display device. The first touch screen 10 and the second touch screen 20 may be a flat touch screen, a curved touch screen, or a foldable touch screen. The shape of the first touch screen 10 and the second touch screen 20 may be a circle, a rectangle, or other odd-shaped structure. The first touch screen 10 and the second touch screen 20 may have the same shape or different shapes, which is not specifically limited in this application.
In the display device, the first signal output end p of the touch driving chip 30 can be electrically connected to the corresponding first electrode 11 and the second electrode 21 at the same time, and the first control unit 41 controls the connection between the corresponding first electrode 11 and the touch driving chip 30 and the connection between the corresponding second electrode 21 and the touch driving chip 30 under the control of the first control signal MUX1 and the second control signal MUX 2. The number of the touch driving chips 30 is effectively reduced, and the production cost is further saved.
In the embodiments of the present application, the display device includes two touch panels as an example, but the present application is not limited to the example, and the technical solutions of the present application are also applicable when the display device includes a plurality of touch panels.
Referring to fig. 2, fig. 2 is a second structural schematic diagram of a display device according to an embodiment of the present disclosure. As shown in fig. 2. In the embodiment of the present application, each of the first control units 41 includes a first transistor T1. The first transistors T1 are disposed corresponding to the respective first electrodes 11.
The gate of the first transistor T1 is electrically connected to the first control terminal a. The source of the first transistor T1 is electrically connected to the first input terminal c. The drain of the first transistor T1 is electrically connected to the first output terminal d. That is, the first control signal MUX1 controls the switching of the first transistor T1.
In addition, each first control unit 41 further includes a second transistor T2. The second transistors T2 are provided corresponding to the respective second electrodes 21;
the gate of the second transistor T2 is electrically connected to the second control terminal e. The source of the second transistor T2 is electrically connected to the first input terminal c. The drain of the second transistor T2 is electrically connected to the second output terminal e. I.e. the second control signal MUX2 controls the switching of the second transistor T2.
Specifically, the transistors T1 used in the embodiment of the present application may be thin film transistors or field effect transistors or other devices with the same characteristics, and since the source and the drain of the transistor T1 used herein are symmetrical, the source and the drain may be interchanged. In the embodiment of the present application, to distinguish the two poles of the transistor T1 except for the gate, one pole is referred to as a source, and the other pole is referred to as a drain. In the form of fig. 2, the transistor T1 has a gate at its center, a source at its signal input terminal, and a drain at its output terminal. In addition, the transistor adopted in the embodiment of the application can be an N-type transistor or a P-type transistor, wherein the N-type transistor is turned on when the grid electrode is at a high level and is turned off when the grid electrode is at a low level; the P-type transistor is turned on when the gate is at a low level and turned off when the gate is at a high level.
In the embodiment of the present application, the first transistor T1 and the second transistor T2 are both transistors of the same type. Therefore, a plurality of transistors of the same type are formed among the first touch screen 10, the second touch screen 20 and the touch driving chip 30, so that the process is simplified, and the productivity can be effectively saved. The examples of the present application should not be construed as limiting the present application.
In the embodiment of the present application, the first transistor T1 and the second transistor T2 are both N-type transistors. When the display device is in the touch mode, the potential of the first control signal MUX1 is opposite to the potential of the second control signal MUX2, so that the same touch driving chip 30 can control the first touch screen 10 and the second touch screen 20 at the same time.
Specifically, when the first touch screen 10 is in a touch state, the first control signal MUX1 is a high-potential signal, and the second control signal MUX2 is a low-potential signal, at this time, the first transistor T1 is turned on, and the second transistor T2 is turned off, so that the corresponding first electrode 11 is connected to the touch driving chip 30, and the corresponding second electrode 21 is disconnected from the touch driving chip 30, so that the touch driving chip 30 transmits a signal to the corresponding first electrode 11 through the first signal output terminal p. When the second touch screen 20 is in a touch state, the first control signal MUX1 is a low-potential signal, and the second control signal MUX2 is a high-potential signal, at this time, the first transistor T1 is turned off, and the second transistor T2 is turned on, so that the corresponding first electrode 11 is disconnected from the touch driving chip 30, the corresponding second electrode 21 is connected to the touch driving chip 30, and the touch driving chip 30 transmits a signal to the corresponding second electrode 21 through the first signal output terminal p. Therefore, the same touch driving chip 30 can control the first touch screen 10 and the second touch screen 20 at the same time, which effectively reduces the number of touch driving chips 30.
In some embodiments, please refer to fig. 3, wherein fig. 3 is a schematic diagram of a third structure of a display device provided in the present application. As shown in fig. 3, the display device further comprises at least one second control unit 42. The second control unit 42 has a third control terminal f, a second input terminal g and a third output terminal h. The third control terminal f is connected to the second control signal MUX 2. The second input terminal g is electrically connected to the corresponding first signal output terminal p. The third output terminal h is electrically connected with the corresponding second electrode 21;
the second control unit 42 is configured to control the connection between the corresponding second electrode 21 and the touch driving chip 30 under the control of the second control signal MUX 2.
It is understood that when the size of the second touch screen 20 is larger than that of the first touch screen 10, the number of the second electrodes 21 is larger than that of the first electrodes 11. When a portion of the first signal output terminals p of the touch driving chip 30 are electrically connected to the corresponding first electrodes 11 and the corresponding second electrodes 21 at the same time, another portion of the second electrodes 21 of the second touch screen 10 are separately electrically connected to another portion of the signal output terminals p, so that the touch driving chip 30 transmits a signal to the second touch screen 20 through the first signal output terminals p. It should be noted that the display device shown in fig. 3 is a double-sided folding touch display device, in which the first touch screen 10 is an outer screen, and the second touch screen 20 is an inner screen (the second electrode 21 is only partially shown), and the illustration is only for explaining the technical solution of the present application, but the present application is not limited thereto.
In some embodiments, please refer to fig. 4, where fig. 4 is a fourth structural diagram of the display device provided in the present application. As shown in fig. 4, the second control unit 42 includes a third transistor T3. The gate of the third transistor T3 is electrically connected to the third control terminal f. The source of the third transistor T3 is electrically connected to the second input terminal g. The drain of the third transistor T3 is electrically connected to the third output terminal h.
Specifically, when the first touch screen 10 is in a touch state, the first control signal MUX1 is a high-potential signal, the second control signal MUX2 is a low-potential signal, at this time, the first transistor T1 is turned on, and both the second transistor T2 and the third transistor T3 are turned off, so that the corresponding first electrode 11 is connected to the touch driving chip 30, the corresponding second electrode 21 is disconnected from the touch driving chip 30, and the touch driving chip 30 transmits a signal to the corresponding first electrode 11 through the first signal output end p. When the second touch screen 20 is in a touch state, the first control signal MUX1 is a low-potential signal, and the second control signal MUX2 is a high-potential signal, at this time, the first transistor T1 is turned off, and both the second transistor T2 and the third transistor T3 are turned on, so that the corresponding first electrode 11 and the touch driving chip 30 are disconnected, the corresponding second electrode 21 and the touch driving chip 30 are connected, and the touch driving chip 30 transmits a signal to the corresponding second electrode 21 through the first signal output end p. Therefore, the same touch driving chip 30 can control the first touch screen 10 and the second touch screen 20 at the same time, which effectively reduces the number of touch driving chips 30.
Correspondingly, the application also provides electronic equipment which comprises the display device. The specific structure of the display device can refer to the above embodiments, and is not described herein again.
The application provides an electronic device, in the display device that this electronic device includes, touch-control driver chip's first signal output part can be simultaneously with corresponding first electrode and second electrode electric connection, simultaneously through first the control unit under the control of first control signal and second control signal, control the connection between corresponding first electrode and the touch-control driver chip and the connection between corresponding second electrode and the touch-control driver chip, effectively reduced touch-control driver chip's quantity, and then practiced thrift manufacturing cost.
The display device and the electronic device provided by the embodiments of the present application are described in detail above, and the principles and embodiments of the present application are described herein by applying specific examples, and the description of the embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A display device, comprising:
a first touch screen comprising a plurality of first electrodes;
a second touch screen comprising a plurality of second electrodes;
the touch control driving chip is provided with a plurality of first signal output ends;
each first control unit is provided with a first control end, a second control end, a first input end, a first output end and a second output end, the first control end is connected with a first control signal, the second control end is connected with a second control signal, the first input end is electrically connected with the corresponding first signal output end, the first output end is electrically connected with the corresponding first electrode, and the second output end is electrically connected with the corresponding second electrode; wherein,
the first control unit is used for controlling connection between the corresponding first electrode and the touch driving chip and connection between the corresponding second electrode and the touch driving chip under the control of the first control signal and the second control signal.
2. The display device according to claim 1, wherein each of the first control units comprises a first transistor disposed corresponding to the corresponding first electrode;
the grid electrode of the first transistor is electrically connected with the first control end; the source of the first transistor is electrically connected to the first input terminal, and the drain of the first transistor is electrically connected to the first output terminal.
3. The display device according to claim 2, wherein each of the first control units further comprises a second transistor disposed corresponding to the corresponding second electrode;
the grid electrode of the second transistor is electrically connected with the second control end; the source of the second transistor is electrically connected to the first input terminal, and the drain of the second transistor is electrically connected to the second output terminal.
4. The display device according to claim 3, wherein the first transistor and the second transistor are both transistors of the same type.
5. The display device according to claim 4, wherein a potential of the first control signal is opposite to a potential of the second control signal.
6. The display device according to claim 1, further comprising at least one second control unit, wherein the second control unit has a third control terminal, a second input terminal and a third output terminal, the third control terminal is connected to the second control signal, the second input terminal is electrically connected to the corresponding first signal output terminal, and the third output terminal is electrically connected to the corresponding second electrode;
the second control unit is used for controlling connection between the corresponding second electrode and the touch driving chip under the control of the second control signal.
7. The display device according to claim 6, wherein the second control unit comprises a third transistor;
the grid electrode of the third transistor is electrically connected with the third control end; the source of the third transistor is electrically connected to the second input terminal, and the drain of the third transistor is electrically connected to the third output terminal.
8. The display device according to claim 1, wherein the first electrode and the second electrode are both touch receiving electrodes or touch sensing electrodes.
9. The display device according to claim 1, wherein the first touch screen and the second touch screen are a flat touch screen or a foldable touch screen.
10. An electronic device characterized by comprising the display device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010413766.8A CN111625131A (en) | 2020-05-15 | 2020-05-15 | Display device and electronic apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010413766.8A CN111625131A (en) | 2020-05-15 | 2020-05-15 | Display device and electronic apparatus |
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| CN111625131A true CN111625131A (en) | 2020-09-04 |
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| CN202010413766.8A Pending CN111625131A (en) | 2020-05-15 | 2020-05-15 | Display device and electronic apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112764590A (en) * | 2021-03-16 | 2021-05-07 | 合肥维信诺科技有限公司 | Touch display panel and driving method thereof |
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