CN112433636A - Touch display panel, touch display device and manufacturing method of touch display panel - Google Patents
Touch display panel, touch display device and manufacturing method of touch display panel Download PDFInfo
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- CN112433636A CN112433636A CN202011388645.9A CN202011388645A CN112433636A CN 112433636 A CN112433636 A CN 112433636A CN 202011388645 A CN202011388645 A CN 202011388645A CN 112433636 A CN112433636 A CN 112433636A
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- touch
- touch electrode
- display panel
- touch 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
-
- 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
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
Abstract
The application provides a touch display panel, a touch display device and a manufacturing method of the touch display panel, wherein the touch display panel comprises: a substrate; an organic light emitting layer disposed on the substrate; the first touch electrode is arranged on the organic light-emitting layer; the color filter layer is arranged on the first touch electrode; and the second touch electrode is arranged on the color filter layer. According to the touch display panel, the first touch electrode is arranged on the organic light emitting layer, the second touch electrode is arranged on the color filter layer, namely the first touch electrode and the second touch electrode are manufactured separately, the color filter layer is used as an insulating layer between the first touch electrode and the second touch electrode, the thickness of the touch display panel is reduced, product thinning is facilitated, and meanwhile, due to the fact that the manufacturing of the insulating layer between the first touch electrode and the second touch electrode is reduced, the process flow is also facilitated to be saved.
Description
Technical Field
The present disclosure relates to the field of touch display technologies, and in particular, to a touch display panel, a touch display device, and a method for manufacturing the touch display panel.
Background
With the advent and continuous development of OLED display technology, flexible display is a trend of future display development. The flexible screen capable of being bent and rolled is widely applied to mobile phones and flat panels, so that the requirement on a touch layer is increased.
Currently, a touch substrate is applied in a display device, and according to different combination modes of the touch substrate and a display screen in the display device, a touch screen generally includes: an out-cell touch screen (in which a touch substrate is attached to a display), an on-cell touch screen (in which a touch substrate is integrated to a display), and an in-cell touch screen (in which a touch substrate is formed on a display substrate of a display panel). Due to the fact that the manufacturing process of the embedded touch substrate is relatively easy to achieve the lightening and thinning of the product, the embedded touch substrate is more in line with the current thinning trend. Generally, an in-cell touch substrate is formed by coating a photoresist on an array substrate, exposing, developing, etching, and cleaning. The touch layer is formed through a continuous process, wherein the touch layer comprises a first touch electrode layer, an insulating layer and a second touch electrode layer which are stacked, the first touch electrode layer and the second touch electrode layer are located in the display area, and the insulating layer covers the display area and the packaging area.
However, the touch layer formed by the continuous process in the prior art still makes the finally formed touch display panel thicker, which is not favorable for realizing product thinning.
Disclosure of Invention
The embodiment of the application provides a touch display panel, a touch display device and a manufacturing method of the touch display panel, and aims to solve the problem that the existing touch display panel is thick.
In one aspect, the present application provides a touch display panel, including:
a substrate;
an organic light emitting layer disposed on the substrate;
the first touch electrode is arranged on the organic light-emitting layer;
the color filter layer is arranged on the first touch electrode;
and the second touch electrode is arranged on the color filter layer.
In a possible implementation manner of the present application, a protection layer is further disposed between the second touch electrode and the color filter layer.
In one possible implementation manner of the present application, the touch display panel further includes:
and the flat layer covers the first touch electrode.
In one possible implementation manner of the present application, the first touch electrode is one of a driving electrode or a sensing electrode, and the second touch electrode is the other of the driving electrode or the sensing electrode.
In a possible implementation manner of the present application, the first touch electrode and the second touch electrode are disposed perpendicular to each other in an orthogonal projection direction of the substrate.
In one possible implementation manner of the present application, the color filter layer includes a light-shielding layer, a red filter, a green filter, and a blue filter, which are disposed at intervals.
In one possible implementation manner of the present application, the first touch electrode and the second touch electrode are made of ito, or a nano silver wire.
In a possible implementation manner of the present application, a protection layer is further disposed between the second touch electrode and the color filter layer.
In one possible implementation manner of the present application, the touch display panel further includes:
the polaroid is arranged on the second touch electrode;
and the protective cover sheet is arranged on the polarizer.
In another aspect, the present application provides a touch display device including the touch display panel.
On the other hand, the present application also provides a method for manufacturing a touch display panel, including:
providing a substrate;
manufacturing an organic light emitting layer on the substrate;
manufacturing a first touch electrode on the organic light-emitting layer;
manufacturing a color filter layer covering the first touch electrode;
and manufacturing a second touch electrode on the organic light-emitting layer.
According to the touch display panel, the touch display device and the manufacturing method of the touch display panel, the first touch electrode is arranged on the organic light emitting layer, the second touch electrode is arranged on the color filter layer, namely the first touch electrode and the second touch electrode are manufactured separately, and the color filter layer is used as an insulating layer between the first touch electrode and the second touch electrode, so that the thickness of the touch display panel can be reduced, and thinning of products is facilitated. Meanwhile, the manufacturing of the insulating layer between the first touch electrode and the second touch electrode is reduced, so that the process flow is saved.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a touch display panel according to an embodiment of the present disclosure.
Fig. 2 is a schematic structural diagram of a first touch electrode and a second touch electrode according to an embodiment of the present disclosure.
Fig. 3 is a schematic structural diagram of a color filter layer according to an embodiment of the present disclosure.
Fig. 4 is a schematic structural diagram of another embodiment of a touch display panel provided in the present application.
Fig. 5 is a schematic flow chart of a manufacturing method of a touch display panel according to an embodiment of the present disclosure.
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. It is to be understood that the embodiments described are only a few embodiments of the present application and not all 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 "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" 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", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
Referring to fig. 1, the present application provides a touch display panel, which includes a substrate 100, an organic light emitting layer 200, a first touch electrode 300, a color filter layer 400, and a touch electrode 500.
A substrate 100, which may be a Thin Film Transistor (TFT) array substrate;
the organic light emitting layer 200 is disposed on one side of the substrate 100, wherein the organic light emitting layer 200 may be an OLED light emitting layer including a plurality of light emitting units for emitting light of different colors;
the first touch electrode 300 is disposed on the organic light emitting layer 200, specifically, the first touch electrode 300 is disposed on the light emitting side of the organic light emitting layer 200;
the color filter layer 400 is disposed on the first touch electrode 300;
the second touch electrode 500 is disposed on the color filter layer 400.
According to the touch display panel provided by the application, the first touch electrode 300 is arranged on the organic light emitting layer 200, and the second touch electrode 500 is arranged on the color filter layer 400, that is, the first touch electrode 300 and the second touch electrode 500 are manufactured separately, and the color filter layer 400 is used as an insulating material between the two electrodes, namely the first touch electrode 300 and the second touch electrode 500, so that the thickness of the touch display panel can be reduced, and the product thinning is facilitated.
It should be noted that, in the embodiment of the present application, the "thickness" of the touch display panel is a dimension of the panel in a direction perpendicular to the substrate.
The touch electrodes include a driving electrode and a sensing electrode, and when the first touch electrode 300 is one of the driving electrode or the sensing electrode, the second touch electrode 500 is the other of the driving electrode or the sensing electrode. For example, the first touch electrode 500 may be an upper touch electrode, that is, the first touch electrode 500 is close to the finger touch position, the first touch electrode 300 is set to be a touch sensing electrode (RX), and the second touch sensing electrode 500 is set to be a touch driving electrode (TX), since the touch sensing electrode (RX) is closer to the finger touch position, the capacitance of the finger is sensed conveniently.
As shown in fig. 2, the first touch electrode 300 and the second touch electrode 500 are disposed perpendicular to each other in the orthogonal projection direction of the substrate 100, so that the touch driving electrodes and the touch sensing electrodes are arranged in order, and the mask alignment is convenient during the preparation.
Specifically, the first touch electrode 300 and the second touch electrode 500 may be made of a material that satisfies the requirement of a low temperature process, for example, Indium Tin Oxide (ITO), Indium-tin Oxide (IZO), or a metal nanowire (e.g., a silver nanowire). Of course, other materials, such as conductive materials, for example, Gallium Zinc Oxide (GZO), Carbon Nanotube-based Thin Films (Carbon Nanotube Films), metals (such as metal Films of Ag, Au, Zn, etc.), silicon (silicon) or Graphene (Graphene), etc., may be used, but not limited thereto. In addition, the materials of the touch driving electrodes and the touch sensing electrodes can be the same or different.
In some embodiments, as shown in fig. 3, the color filter layer 400 includes a plurality of filters, and the filters allow light to pass through the same color as the light emitting color of the corresponding light emitting units. The color filter layer 400 includes a light-shielding layer 440, a red filter 410, a green filter 420, and a blue filter 430 arranged at intervals. Wherein, light shield layer 440 is used for spacing apart a plurality of filters, light shield layer 440 is located first touch electrode line with between the second touch electrode line, light shield layer 440 can be the black matrix, mainly has strong absorption to the incident full-wave band wavelength, generally requires the OD value to be greater than 3, and 1um thick black matrix transmissivity is less than 0.1%.
Further, a protection layer 600 may be formed on the surface of the color filter layer 400 by a low temperature process, and the protection layer may be made of an insulating material, such as oc (over coat) material, so as to protect the color filter layer 400.
In some embodiments, as shown in fig. 4, the touch display panel further includes: a planarization layer 700.
The flat layer 700 covers the first touch electrode 300 by means of adhesion. The planarization layer 700 is made of an organic insulating material through a low temperature process, and serves as a planarization function.
In some embodiments, the touch display panel further includes an anode layer 110, a cathode layer 120, a pixel definition layer 130, and an encapsulation layer 140.
The anode layer 110 is disposed on the substrate 100, the pixel defining layers 110 are formed on the anode 110 by an evaporation process, the organic light emitting layer 200 is disposed in a groove between the pixel defining layers 110, the cathode layer 120 covers the organic light emitting layer 200, an electric field is formed between the cathode layer 120 and the anode layer 110, the encapsulation layer 140 covers the cathode layer 120, and the first touch electrode 300 is disposed on the encapsulation layer 140.
In some embodiments, the touch display panel further comprises: polarizer 800 and protective cover sheet 900.
The polarizer 800 is disposed on the second touch electrode 500 in an attaching manner, and the protective cover 900 covers the polarizer 800. The protective cover 900 is used to protect the material below the protective cover 900, and the protective cover 900 may be made of transparent material such as glass.
In another aspect, the present application provides a touch display device including the touch display panel. The touch display device comprises the touch display panel of the embodiment. Since the touch display device has the touch display panel, the same beneficial effects are achieved, and the description of the invention is omitted here.
The application of the touch display device in the embodiment of the present application is not particularly limited, and the touch display device may be any product or component having a display function, such as a television, a notebook computer, a tablet computer, a wearable display device, a mobile phone, a vehicle-mounted display, a navigation device, an electronic book, a digital photo frame, an advertisement light box, and the like.
On the other hand, the present application further provides a method for manufacturing a touch display panel, as shown in fig. 5, the method includes the following steps S101 to S105:
s101, providing a substrate;
s102, manufacturing an organic light-emitting layer on the substrate;
s103, manufacturing a first touch electrode on the organic light emitting layer. Because the weight loss temperature of the OLED organic light-emitting layer material is lower, a low-temperature process (the temperature is lower than 90 ℃) is used when the first touch electrode is manufactured, and a low-temperature material which is suitable for the low-temperature process is selected.
S104, manufacturing a color filter layer covering the first touch electrode;
and S105, manufacturing a second touch electrode on the organic light-emitting layer. The low-temperature process (the temperature is lower than 90 ℃) is also used when the second touch electrode is manufactured, and a low-temperature material which is suitable for the low-temperature process is selected.
According to the manufacturing method of the touch display panel, the first touch electrode is arranged on the organic light emitting layer, the second touch electrode is arranged on the color filter layer, namely the first touch electrode and the second touch electrode are manufactured separately, and the color filter layer is used as an insulating material between the first touch electrode and the second touch electrode, so that the light and thin product is favorably realized.
In a specific implementation, in the manufacturing method provided in an embodiment of the present invention, between the step S103 and the step S104, the method may further include:
1) and preparing a protective layer on the second touch electrode.
After the step of S105, fabricating the second touch electrode on the organic light emitting layer, the method may further include:
2) and preparing a flat layer covering the first touch electrode.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The touch display panel, the touch display device and the manufacturing method of the touch display panel provided by the embodiment of the application are introduced in detail, a specific example is applied in the description to explain the principle and the implementation manner of the application, and the description of the embodiment is only used for helping to understand the technical scheme and the core idea of the application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A touch display panel, comprising:
a substrate;
an organic light emitting layer disposed on the substrate;
the first touch electrode is arranged on the organic light-emitting layer;
the color filter layer is arranged on the first touch electrode;
and the second touch electrode is arranged on the color filter layer.
2. The touch display panel according to claim 1, wherein a protective layer is further disposed between the second touch electrode and the color filter layer.
3. The touch display panel of claim 1, further comprising:
and the flat layer covers the first touch electrode.
4. The touch display panel of claim 1, wherein the first touch electrode is one of a driving electrode or a sensing electrode, and the second touch electrode is the other of one of the driving electrode or the sensing electrode.
5. The touch display panel according to claim 1, wherein the first touch electrode and the second touch electrode are disposed perpendicular to each other in an orthogonal projection direction of the substrate.
6. The touch display panel according to claim 1, wherein the color filter layer comprises a light-shielding layer, a red filter, a green filter and a blue filter, which are arranged at intervals.
7. The touch display panel of claim 1, wherein the first touch electrode and the second touch electrode are made of ito (indium tin oxide), ito (indium tin oxide) or nano-silver wire.
8. The touch display panel of any one of claims 1-7, further comprising:
the polaroid is arranged on the second touch electrode;
and the protective cover sheet is arranged on the polarizer.
9. A touch display device comprising the touch display panel according to any one of claims 1 to 8.
10. A manufacturing method of a touch display panel is characterized by comprising the following steps:
providing a substrate;
manufacturing an organic light emitting layer on the substrate;
manufacturing a first touch electrode on the organic light-emitting layer;
manufacturing a color filter layer covering the first touch electrode;
and manufacturing a second touch electrode on the organic light-emitting layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011388645.9A CN112433636A (en) | 2020-12-01 | 2020-12-01 | Touch display panel, touch display device and manufacturing method of touch display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011388645.9A CN112433636A (en) | 2020-12-01 | 2020-12-01 | Touch display panel, touch display device and manufacturing method of touch display panel |
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| Publication Number | Publication Date |
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| CN112433636A true CN112433636A (en) | 2021-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011388645.9A Pending CN112433636A (en) | 2020-12-01 | 2020-12-01 | Touch display panel, touch display device and manufacturing method of touch display panel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112987978A (en) * | 2021-04-26 | 2021-06-18 | 京东方科技集团股份有限公司 | Touch display panel and display device |
| CN113192255A (en) * | 2021-03-12 | 2021-07-30 | 广州朗国电子科技有限公司 | Display screen for vending machine |
| WO2023245959A1 (en) * | 2022-06-24 | 2023-12-28 | 合肥维信诺科技有限公司 | Display panel and display device |
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| TW201142418A (en) * | 2010-05-20 | 2011-12-01 | Unidisplay Inc | Touch-sensing display panel and color filter touch-sensing substrate |
| CN102279662A (en) * | 2010-06-13 | 2011-12-14 | 明兴光电股份有限公司 | Touch-control display panel and colorized filtering touch-control baseplate |
| CN110323355A (en) * | 2019-04-25 | 2019-10-11 | 昆山工研院新型平板显示技术中心有限公司 | A kind of OLED display panel and OLED display |
| CN111816681A (en) * | 2020-06-29 | 2020-10-23 | 合肥维信诺科技有限公司 | OLED display panel and OLED display device |
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| TW201142418A (en) * | 2010-05-20 | 2011-12-01 | Unidisplay Inc | Touch-sensing display panel and color filter touch-sensing substrate |
| CN102279662A (en) * | 2010-06-13 | 2011-12-14 | 明兴光电股份有限公司 | Touch-control display panel and colorized filtering touch-control baseplate |
| CN110323355A (en) * | 2019-04-25 | 2019-10-11 | 昆山工研院新型平板显示技术中心有限公司 | A kind of OLED display panel and OLED display |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113192255A (en) * | 2021-03-12 | 2021-07-30 | 广州朗国电子科技有限公司 | Display screen for vending machine |
| CN112987978A (en) * | 2021-04-26 | 2021-06-18 | 京东方科技集团股份有限公司 | Touch display panel and display device |
| CN112987978B (en) * | 2021-04-26 | 2023-12-22 | 京东方科技集团股份有限公司 | Touch display panel and display device |
| WO2023245959A1 (en) * | 2022-06-24 | 2023-12-28 | 合肥维信诺科技有限公司 | Display panel and display device |
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