CN113126797A - Reflective display panel, touch device and touch system - Google Patents
Reflective display panel, touch device and touch system Download PDFInfo
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- CN113126797A CN113126797A CN202010048212.2A CN202010048212A CN113126797A CN 113126797 A CN113126797 A CN 113126797A CN 202010048212 A CN202010048212 A CN 202010048212A CN 113126797 A CN113126797 A CN 113126797A
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- touch
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- reflective display
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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
Abstract
The invention provides a reflective display panel, a touch device and a touch system, and relates to the technical field of touch. Wherein, reflective display panel includes: a substrate; the touch sensing layer is formed on the first surface of the substrate; the pixel structure is arranged on the second surface, far away from the touch sensing layer, of the substrate. In the embodiment of the invention, the touch sensing layer can be formed on the first surface of the substrate, so that the touch function can be integrated on the display panel without attaching a separate electromagnetic film, and the thickness of the touch device is reduced. In addition, the reflective display panel can display by reflecting ambient light, so that a backlight module is not needed to provide a light source required by display for the touch device comprising the reflective display panel, the backlight module can be omitted, and the thickness of the touch device is further reduced.
Description
Technical Field
The present invention relates to the field of touch technologies, and in particular, to a reflective display panel, a touch device, and a touch system.
Background
With the rapid development of touch technology, the types of touch products are increasing, for example, a touch panel for drawing and writing, a touch panel for teaching which can replace a blackboard, and the like, and such touch products bring brand new touch experience to various aspects of life.
The existing touch device adopts a transmission type display panel to display, and adopts an independent electromagnetic film to perform touch induction on an electromagnetic pen. The transmissive display panel needs the backlight module to provide a light source, and the electromagnetic film is opaque, so the electromagnetic film needs to be attached to the side of the backlight module far away from the transmissive display panel, i.e. under the reflector of the backlight module. Because need attach solitary electromagnetic film, consequently, increased the holistic thickness of touch device, can't satisfy the product demand of frivolousization.
Disclosure of Invention
The invention provides a reflective display panel, a touch device and a touch system, which are used for solving the problems that the conventional touch device is large in thickness and cannot meet the requirements of light and thin products.
In order to solve the above problems, the present invention discloses a reflective display panel, including:
a substrate;
the touch sensing layer is formed on the first surface of the substrate;
the pixel structure is arranged on the second surface, far away from the touch sensing layer, of the substrate.
Optionally, the touch sensing layer includes:
the first routing layer is formed on the first surface of the substrate and comprises a plurality of first strip coils which are parallel to each other and provided with first openings;
the first insulating layer covers the first wiring layer;
the second wiring layer is formed on the first insulating layer and comprises a plurality of second strip-shaped coils which are parallel to each other and provided with second openings, and the second strip-shaped coils are perpendicular to the first strip-shaped coils;
and the second insulating layer covers the second routing layer.
Optionally, the touch sensing layer further includes:
a signal shielding layer covering the second insulating layer.
Optionally, the material of the signal shielding layer is a metal material.
Optionally, the first bar coil and the second bar coil are both made of metal materials.
Optionally, the material of the first insulating layer and the material of the second insulating layer are both optical glue.
Optionally, the reflective display panel is a reflective liquid crystal display panel.
In order to solve the above problem, the present invention further discloses a touch device, which includes the reflective display panel.
Optionally, the touch device further includes a touch chip; the touch-control inductive layer of reflective display panel includes first routing layer and second routing layer, first routing layer includes a plurality of first bar coil that are parallel to each other and have first open-ended, the second routing layer includes a plurality of second bar coil that are parallel to each other and have second open-ended, second bar coil with first bar coil is perpendicular, first bar coil with touch-control chip connects and forms closed loop, second bar coil with touch-control chip connects and forms closed loop.
In order to solve the above problems, the present invention also discloses a touch system, comprising the touch device as described above, and an electromagnetic pen; the touch device is configured to identify a touch trajectory of the electromagnetic pen through the touch sensing layer when the electromagnetic pen touches on the touch device.
Compared with the prior art, the invention has the following advantages:
in an embodiment of the present invention, the reflective display panel includes a substrate, a touch sensing layer and a pixel structure, wherein the touch sensing layer is formed on a first surface of the substrate, and the pixel structure is disposed on a second surface of the substrate away from the touch sensing layer. In the embodiment of the invention, the touch sensing layer can be formed on the first surface of the substrate, so that the touch function can be integrated on the display panel without attaching a separate electromagnetic film, and the thickness of the touch device is reduced. In addition, the reflective display panel can display by reflecting ambient light, so that a backlight module is not needed to provide a light source required by display for the touch device comprising the reflective display panel, the backlight module can be omitted, and the thickness of the touch device is further reduced.
Drawings
Fig. 1 is a schematic diagram of a reflective display panel according to a first embodiment of the invention;
fig. 2 is a schematic diagram illustrating a touch sensing layer according to a first embodiment of the invention;
fig. 3 is a schematic diagram illustrating a trace of a touch sensing layer according to a first embodiment of the invention;
FIG. 4 is a flow chart illustrating a method for fabricating a reflective display panel according to a second embodiment of the present invention;
fig. 5 is a schematic diagram illustrating a touch device according to a third embodiment of the invention;
fig. 6 is a schematic diagram of a touch system according to a fourth embodiment of the invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example one
Referring to fig. 1, a schematic diagram of a reflective display panel according to a first embodiment of the present invention is shown, where the reflective display panel includes a substrate 10, a touch sensing layer 20 formed on a first surface 01 of the substrate 10, and a pixel structure 30, and the pixel structure 30 is disposed on a second surface 02 of the substrate 10 away from the touch sensing layer 20.
The pixel structure 30 includes an array layer structure 31 formed on the second surface 02 of the substrate 10, a color filter substrate 33 bonded to the array substrate, and a liquid crystal layer 32 located between the array substrate and the color filter substrate 33. The array substrate includes the substrate 10 and an array layer structure 31. In the reflective display panel, the array substrate comprises the reflecting layer, so that when the ambient light irradiates the reflecting layer, the ambient light can be emitted by the reflecting layer after being modulated, and thus, the reflective display panel can display by utilizing the ambient light.
The touch sensing layer 20 may be used to sense touch operations, and when the electromagnetic pen performs touch on the reflective display panel, the magnetic flux of the touch sensing layer 20 at a touch point may change, so that the touch device may determine a touch position, a touch pressure, a touch tilt angle, and the like of the electromagnetic pen according to the change of the magnetic flux, thereby identifying a touch trajectory of the electromagnetic pen.
The touch sensing layer 20 may be formed on the first side 01 of the substrate 10 through a yellow light process, so that a touch function may be integrated on a display panel without attaching a separate electromagnetic film. In practical applications, the thickness of an existing electromagnetic film in an FPC (Flexible Printed Circuit) connection mode is usually 0.3 mm, and the thickness of a touch sensing layer is only about several micrometers, so that the thickness of the touch device can be further reduced by integrating the touch sensing layer on a display panel.
Optionally, referring to fig. 2, a schematic diagram of a touch sensing layer according to a first embodiment of the present invention is shown, where the touch sensing layer 20 includes:
referring to fig. 3, which is a schematic diagram illustrating routing of a touch sensing layer according to a first embodiment of the present invention, the first routing layer 21 being formed on the first side 01 of the substrate 10, the first routing layer 21 including a plurality of first strip coils 211 parallel to each other and having first openings 03;
a first insulating layer 22, wherein the first insulating layer 22 covers the first wiring layer 21;
a second wiring layer 23, the second wiring layer 23 being formed on the first insulating layer 22, referring to fig. 3, the second wiring layer 23 including a plurality of second bar coils 231 parallel to each other and having second openings 04, the second bar coils 231 being perpendicular to the first bar coils 211;
and a second insulating layer 24, wherein the second insulating layer 24 covers the second routing layer 23.
The line end of the first bar coil at the first opening 03 may be connected with the touch chip to form a closed loop, and the line end of the second bar coil at the second opening 04 may be connected with the touch chip to form a closed loop. In the signal transmitting stage, an ac signal may be input to the first bar coil 211 and the second bar coil 231, and the ac signal may cause the first bar coil 211 and the touch chip to generate a magnetic flux in a closed loop, and the second bar coil 231 and the touch chip to generate a magnetic flux in a closed loop. When the electromagnetic pen 2000 performs touch control near the reflective display panel, the electromagnetic pen 2000 may sense an ac signal in the first bar coil 211 and the second bar coil 231, so that the ac signal may charge the LC oscillating circuit in the electromagnetic pen 2000, and then the LC oscillating circuit may transmit an electromagnetic feedback signal to the reflective display panel.
In the signal receiving phase, the input of the ac signal to the first bar coil 211 and the second bar coil 231 may be stopped, so that both the first bar coil 211 and the second bar coil 231 may receive an electromagnetic feedback signal transmitted by the LC oscillating circuit of the electromagnetic pen 2000, and the electromagnetic feedback signal causes a change in magnetic flux in the first bar coil 211 and the second bar coil 231, and thus the first bar coil 211 and the second bar coil 231 may generate an induced current.
The first bar-shaped coil 211 and the second bar-shaped coil 231 are staggered horizontally and vertically, so that the intersection point of the first bar-shaped coil 211 and the second bar-shaped coil 231 with the largest induced current is the touch position. In addition, when the touch pressure of the electromagnetic pen 2000 is different, parameters such as capacitance and inductance in the LC oscillating circuit are changed, so that the frequency of the electromagnetic feedback signal emitted by the LC oscillating circuit is different, and the touch pressure of the electromagnetic pen 2000 can be determined by detecting the frequency of the received electromagnetic feedback signal. Furthermore, when the electromagnetic pen 2000 performs touch control at a different angle from the reflective display panel, the number of the bar coils capable of generating the induced current may be different, and the induced current of the bar coil farther from the touch position may be smaller, so that the touch tilt angle of the electromagnetic pen 2000 may be determined by the number of the bar coils generating the induced current and the magnitude of the induced current.
By determining information such as the touch position, the touch pressure, the touch inclination angle and the like of the electromagnetic pen, the real pen touch of a user during writing can be simulated during handwriting display, and the simulation degree of touch writing is improved.
Alternatively, the first bar-shaped coil 211 and the second bar-shaped coil 231 may be both made of a metal material, such as copper, and the embodiment of the present invention is not particularly limited thereto. Because the reflective display panel utilizes external ambient light to display, and the ambient light can not reach the touch-control induction layer and just can be reflected, consequently, the touch-control induction layer adopts metal material can not cause the influence to the display effect.
Optionally, the material of the first insulating layer 22 and the material of the second insulating layer 24 are both optical glue, but may also be other insulating materials, which is not specifically limited in this embodiment of the present invention.
Further optionally, referring to fig. 2, the touch sensing layer 20 may further include a signal shielding layer 25, and the signal shielding layer covers the second insulating layer.
The signal shielding layer 25 is located on the back side of the pixel structure, so that the electromagnetic pen signal on the back side of the touch device can be shielded, and the back side of the touch device is prevented from being in a writable state. In addition, the signal shielding layer 25 can also prevent the traces in the touch sensing layer 20 from being oxidized. In addition, in the manufacturing process of the array layer structure, the signal shielding layer 25 can also be used as a protective layer for the trace, so as to prevent the trace in the touch sensing layer 20 from being scratched.
Of course, the signal shielding layer 25 may not be provided in the touch device, for example, when the touch device needs to be installed on a plane such as a wall surface for use, the back surface of the touch device is disposed close to the plane such as the wall surface, and thus there is no writing space for the electromagnetic pen, and the user cannot write on the back surface of the touch device, so that the signal shielding layer 25 can be eliminated.
Alternatively, the material of the signal shielding layer 25 may be a metal material, such as aluminum metal, and the like, which is not particularly limited in this embodiment of the present invention.
Alternatively, in a specific application, the reflective display panel may be a reflective liquid crystal display panel.
In an embodiment of the present invention, the reflective display panel includes a substrate, a touch sensing layer and a pixel structure, wherein the touch sensing layer is formed on a first surface of the substrate, and the pixel structure is disposed on a second surface of the substrate away from the touch sensing layer. In the embodiment of the invention, the touch sensing layer can be formed on the first surface of the substrate, so that the touch function can be integrated on the display panel without attaching a separate electromagnetic film, and the thickness of the touch device is reduced. In addition, the reflective display panel can display by reflecting ambient light, so that a backlight module is not needed to provide a light source required by display for the touch device comprising the reflective display panel, the backlight module can be omitted, and the thickness of the touch device is further reduced.
Example two
Referring to fig. 4, a flowchart of a method for manufacturing a reflective display panel according to a second embodiment of the present invention is shown, where the method may include the following steps:
step 401: a substrate is provided.
In an embodiment of the present invention, a substrate may be provided, and the substrate may be made of silicon, glass, Polyimide (PI), and the like, which is not particularly limited in this embodiment of the present invention.
Step 402: and forming a touch sensing layer on the first surface of the substrate.
In the embodiment of the invention, the touch sensing layer can be used for sensing touch operation of the electromagnetic pen on the touch device.
In an alternative implementation, the step may be implemented by the following steps, including:
forming a first routing layer on a first surface of a substrate, wherein the first routing layer comprises a plurality of first strip-shaped coils which are parallel to each other and provided with first openings;
forming a first insulating layer, wherein the first insulating layer covers the first wiring layer;
forming a second routing layer on the first insulating layer, wherein the second routing layer comprises a plurality of second strip-shaped coils which are parallel to each other and provided with second openings, and the second strip-shaped coils are perpendicular to the first strip-shaped coils;
and forming a second insulating layer which covers the second routing layer.
Specifically, a first routing layer may be formed on a first surface of the substrate through a step of a yellow light process such as plating, exposure, development, and etching, a first insulating layer may be formed by coating, so as to cover the first routing layer, a second routing layer may be formed on the first insulating layer through a step of a yellow light process such as plating, exposure, development, and etching, and a second insulating layer may be formed by coating, so as to cover the second routing layer.
Further optionally, after forming the second insulating layer, the following steps may be further included:
and forming a signal shielding layer which covers the second insulating layer.
The signal shielding layer is positioned on the back of the pixel structure, so that electromagnetic pen signals on the back of the touch device can be shielded, the back of the touch device is prevented from being in a writable state, and further, mistaken touch can be avoided. In addition, the signal shielding layer can also prevent the wiring in the touch sensing layer from being oxidized. In addition, in the manufacturing process of the array layer structure, the signal shielding layer can also be used as a protective layer of the wiring, so that the wiring in the touch sensing layer is prevented from being scratched.
Step 403: and arranging a pixel structure on a second surface of the substrate far away from the touch sensing layer.
In the embodiment of the invention, after the touch sensing layer is prepared, the substrate can be turned over, and the pixel structure is further arranged on the second surface of the substrate away from the touch sensing layer. The substrate can be used as a substrate of an array substrate, and array layer structures such as a thin film transistor, a pixel electrode, a reflecting layer and the like can be prepared on the substrate. Then, liquid crystal can be coated on the array substrate, the separately prepared color film substrate and the array substrate coated with the liquid crystal can be aligned, and a polarizer is attached to one side of the color film substrate away from the array substrate, so that the reflective display panel can be obtained. In the embodiments of the present invention, reference may be made to related technologies for the preparation of the array layer structure, the preparation of the color film substrate, and the processes of box alignment of the array substrate and the color film substrate.
It should be noted that, in the reflective display panel, since the reflection of the ambient light is used for displaying, the ambient light does not penetrate through the reflective display panel, and therefore, a polarizer is not required to be disposed between the substrate and the touch sensing layer.
In the embodiment of the invention, a substrate may be provided first, then a touch sensing layer is formed on a first surface of the substrate, and further a pixel structure may be disposed on a second surface of the substrate away from the touch sensing layer. In the embodiment of the invention, the touch sensing layer can be formed on the first surface of the substrate, so that the touch function can be integrated on the display panel without attaching a separate electromagnetic film, and the thickness of the touch device is reduced. In addition, the reflective display panel can display by reflecting ambient light, so that a backlight module is not needed to provide a light source required by display for the touch device comprising the reflective display panel, the backlight module can be omitted, and the thickness of the touch device is further reduced.
EXAMPLE III
Fig. 5 shows a touch device according to a third embodiment of the invention, and referring to fig. 5, the touch device includes the reflective display panel 100 as described above.
Optionally, the touch device further includes a touch chip; the touch sensing layer of the reflective display panel 100 includes a first routing layer and a second routing layer, the first routing layer includes a plurality of first bar coils parallel to each other and having a first opening, the second routing layer includes a plurality of second bar coils parallel to each other and having a second opening, the second bar coils are perpendicular to the first bar coils, wherein the first bar coils are connected with the touch chip to form a closed loop, and the second bar coils are connected with the touch chip to form a closed loop.
In addition, referring to fig. 5, the touch device may further include a cover plate 200, and the cover plate 200 may be attached to one side of the color film substrate away from the touch sensing layer by an optical adhesive or the like, and may be used to protect the surface of the reflective display panel 100. When a user performs touch writing through the electromagnetic pen, the electromagnetic pen can perform touch on the cover plate of the touch device.
Further, referring to fig. 5, the touch device may further include a middle frame 300, and the reflective display panel 100 may be embedded in the middle frame 300, so that the middle frame 300 may protect structures in the reflective display panel 100. The edge of the middle frame 300 may be bonded to the cover plate 300, so that the cover plate 200 and the middle frame 300 may completely cover the reflective display panel 100, thereby preventing the structure in the reflective display panel 100 from being damaged.
In an embodiment of the present invention, a reflective display panel of a touch device includes a substrate, a touch sensing layer, and a pixel structure, wherein the touch sensing layer is formed on a first surface of the substrate, and the pixel structure is disposed on a second surface of the substrate away from the touch sensing layer. In the embodiment of the invention, the touch sensing layer can be formed on the first surface of the substrate, so that the touch function can be integrated on the display panel without attaching a separate electromagnetic film, and the thickness of the touch device is reduced. In addition, the reflective display panel can display by reflecting ambient light, so that a backlight module is not needed to provide a light source required by display for the touch device comprising the reflective display panel, the backlight module can be omitted, and the thickness of the touch device is further reduced.
Example four
The embodiment of the present invention further discloses a touch system, referring to fig. 6, including the touch device 1000 as described above, and an electromagnetic pen 2000; the touch device 1000 is configured to recognize a touch trajectory of the electromagnetic pen 2000 through the touch sensing layer when the electromagnetic pen 2000 touches on the touch device 1000.
In an embodiment of the present invention, a touch system includes a touch device and an electromagnetic pen, and a reflective display panel of the touch device includes a substrate, a touch sensing layer and a pixel structure, wherein the touch sensing layer is formed on a first surface of the substrate, and the pixel structure is disposed on a second surface of the substrate away from the touch sensing layer. The touch device is used for identifying the touch track of the electromagnetic pen through the touch sensing layer when the electromagnetic pen touches the touch device. In the embodiment of the invention, the touch sensing layer can be formed on the first surface of the substrate, so that the touch function can be integrated on the display panel without attaching a separate electromagnetic film, and the thickness of the touch device is reduced. In addition, the reflective display panel can display by reflecting ambient light, so that a backlight module is not needed to provide a light source required by display for the touch device comprising the reflective display panel, the backlight module can be omitted, and the thickness of the touch device is further reduced.
While, for purposes of simplicity of explanation, the foregoing method embodiments have been described as a series of acts or combination of acts, it will be appreciated by those skilled in the art that the present invention is not limited by the illustrated ordering of acts, as some steps may occur in other orders or concurrently with other steps in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The reflective display panel, the touch device and the touch system provided by the invention are described in detail above, and specific examples are applied herein to explain the principles and embodiments of the invention, and the description of the above embodiments is only used to help understanding the method and the core concept of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, 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 invention.
Claims (10)
1. A reflective display panel, comprising:
a substrate;
the touch sensing layer is formed on the first surface of the substrate;
the pixel structure is arranged on the second surface, far away from the touch sensing layer, of the substrate.
2. The reflective display panel of claim 1, wherein the touch sensing layer comprises:
the first routing layer is formed on the first surface of the substrate and comprises a plurality of first strip coils which are parallel to each other and provided with first openings;
the first insulating layer covers the first wiring layer;
the second wiring layer is formed on the first insulating layer and comprises a plurality of second strip-shaped coils which are parallel to each other and provided with second openings, and the second strip-shaped coils are perpendicular to the first strip-shaped coils;
and the second insulating layer covers the second routing layer.
3. The reflective display panel of claim 2, wherein the touch sensing layer further comprises:
a signal shielding layer covering the second insulating layer.
4. The reflective display panel of claim 3, wherein the signal shielding layer is made of a metal material.
5. The reflective display panel according to claim 2, wherein the first bar coil and the second bar coil are both of a metal material.
6. The reflective display panel of claim 2, wherein the material of the first insulating layer and the material of the second insulating layer are both optical glue.
7. The reflective display panel according to claim 1, wherein the reflective display panel is a reflective liquid crystal display panel.
8. A touch device comprising the reflective display panel according to any one of claims 1 to 7.
9. The touch device of claim 8, further comprising a touch chip; the touch-control inductive layer of reflective display panel includes first routing layer and second routing layer, first routing layer includes a plurality of first bar coil that are parallel to each other and have first open-ended, the second routing layer includes a plurality of second bar coil that are parallel to each other and have second open-ended, second bar coil with first bar coil is perpendicular, first bar coil with touch-control chip connects and forms closed loop, second bar coil with touch-control chip connects and forms closed loop.
10. A touch system comprising the touch device according to any one of claims 8 to 9, and an electromagnetic pen; the touch device is configured to identify a touch trajectory of the electromagnetic pen through the touch sensing layer when the electromagnetic pen touches on the touch device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010048212.2A CN113126797A (en) | 2020-01-16 | 2020-01-16 | Reflective display panel, touch device and touch system |
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| CN202010048212.2A CN113126797A (en) | 2020-01-16 | 2020-01-16 | Reflective display panel, touch device and touch system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI810817B (en) * | 2022-02-16 | 2023-08-01 | 元太科技工業股份有限公司 | Touch display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1534333A (en) * | 2003-03-28 | 2004-10-06 | Lg.飞利浦Lcd有限公司 | Liquid crystal display equipment possessing electromagnetic contact screen |
| TW201411255A (en) * | 2012-09-11 | 2014-03-16 | Wintek Corp | Touch display device |
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2020
- 2020-01-16 CN CN202010048212.2A patent/CN113126797A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1534333A (en) * | 2003-03-28 | 2004-10-06 | Lg.飞利浦Lcd有限公司 | Liquid crystal display equipment possessing electromagnetic contact screen |
| TW201411255A (en) * | 2012-09-11 | 2014-03-16 | Wintek Corp | Touch display device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI810817B (en) * | 2022-02-16 | 2023-08-01 | 元太科技工業股份有限公司 | Touch display device |
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