WO2018086274A1 - 触控组件、显示面板及制造触控组件的方法 - Google Patents
触控组件、显示面板及制造触控组件的方法 Download PDFInfo
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- WO2018086274A1 WO2018086274A1 PCT/CN2017/074764 CN2017074764W WO2018086274A1 WO 2018086274 A1 WO2018086274 A1 WO 2018086274A1 CN 2017074764 W CN2017074764 W CN 2017074764W WO 2018086274 A1 WO2018086274 A1 WO 2018086274A1
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- Prior art keywords
- touch
- touch electrode
- electrode portion
- substrate
- period
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Classifications
-
- 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
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
-
- 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
-
- 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
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
- G02F2201/123—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode pixel
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- 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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/40—OLEDs integrated with touch screens
Definitions
- Embodiments of the present disclosure relate to the field of display technologies, and in particular, to a touch component, a display panel, and a method of manufacturing the touch component. Background technique
- the structure of the touch display panel generally includes three types: one is an Out Cell Touch Panel whose touch screen is independent of the display screen, and is an in-cell touch screen in which the touch component is disposed inside the display panel (In Cell Touch) Panel), there is also a surface touch panel (On Cell Touch Panel) in which the touch component is disposed on the surface of the display panel.
- Out Cell Touch Panel whose touch screen is independent of the display screen
- On Cell Touch Panel a surface touch panel in which the touch component is disposed on the surface of the display panel.
- the surface touch screens have become mainstream touch solutions due to their low cost, thin products, and low light impact.
- the light transmittance of the inclined side region at the taper position of the touch electrode is lower than that of the flat surface region of the touch electrode.
- the overshoot rate causes a difference in brightness, so light and dark streaks are produced.
- the arrangement period of the glass surface touch electrode (for example, made of ITO (indium tin oxide)) is similar to that of the pixel electrode, the light and dark stripes in the touch electrode layer are formed (the dark stripes are formed at the slope angle, and other portions are formed).
- the present disclosure is directed to a method of manufacturing a touch component, a display panel, and a touch component to improve the phenomenon of light and dark streaks and moiré of a surface touch screen product.
- a touch control assembly includes: a substrate and a plurality of touch electrodes.
- Each of the touch electrodes includes a first touch electrode portion and a plurality of second touch electrode portions disposed on the first touch electrode portion, wherein the first touch electrode portion is disposed on the substrate at a first periodic interval.
- the second touch electrode portions are disposed on each of the first touch electrode portions at a second period interval, and the second period is smaller than the first period.
- the period of the first touch electrode portion is 2-10 times of the period of the second touch electrode portion.
- each of the first touch electrode portion and the second touch electrode portion has a trapezoidal cross section, and the oblique side of the trapezoidal cross section of the first touch electrode portion and the second touch The positions of the oblique sides of the trapezoidal cross section of the electrode portion are shifted from each other.
- the width of the horizontal projection of each oblique side of the trapezoidal cross section of the first touch electrode portion on the substrate is equal to each oblique side of the trapezoidal cross section of the second touch electrode portion. The width of the horizontal projection on the substrate.
- the first touch electrode portion and the second touch electrode portion may be arranged such that each oblique side of the trapezoidal cross section of the first touch electrode portion and the second touch electrode portion The horizontal projection of each oblique side of the trapezoidal cross section on the substrate is evenly distributed.
- each of the first touch electrode portion and the second touch electrode portion has a thickness equal to half of the light passing through the first touch electrode portion or the second touch electrode portion. A multiple of the wavelength.
- the first touch electrode portion and the second touch electrode portion form a unitary structure.
- An embodiment of another aspect of the present disclosure provides a display panel including the touch assembly of the embodiments of the first aspect.
- the period of the pixel electrode in the display panel is 1-3 times the period of the first touch electrode portion.
- the display panel further includes: an OLED panel, wherein the touch component is formed on the OLED panel.
- An embodiment of the present disclosure provides a method for manufacturing a touch component, including the steps of: providing a substrate; and forming a plurality of touch electrodes on the substrate such that each touch electrode includes a first touch electrode portion and is disposed at a plurality of second touch electrode portions on the first touch electrode portion, wherein the first touch electrode portions are disposed on the substrate at a first periodic interval, and the second touch electrode portions are disposed at the first interval at a second interval On the touch electrode portion, the second period is smaller than the first period.
- the forming a plurality of touch electrodes on the substrate includes: forming a first touch electrode layer on the substrate, the first touch electrode layer including a plurality of the first touch electrodes And forming a second touch electrode layer on the first touch electrode layer, and the second touch electrode layer includes a plurality of the second touch electrode portions.
- the first touch electrode layer is patterned by a first photolithography process to form a plurality of the first touch electrode portions
- the second photomask is patterned by a second photolithography process.
- a second touch electrode layer to form a plurality of the second touch electrode portions.
- the forming a plurality of touch electrodes on the substrate includes: forming an electrode layer having a uniform thickness on the substrate; and patterning the electrode layer such that the electrode layer forms a plurality of the first a touch electrode portion and a plurality of the second electrode portions.
- the patterned electrode layer may include: patterning the electrode layer by one photolithography process using a halftone mask.
- a stacked first touch electrode portion and a second touch electrode portion are provided on a substrate instead of a conventional touch electrode.
- the arrangement period of the second touch electrode portion is smaller than the arrangement period of the first touch electrode portion, thereby increasing the frequency of the touch electrode on the surface of the substrate, and improving the light and dark stripe phenomenon and moiré of the touch display panel phenomenon.
- FIG. 1A is a schematic plan view of a touch component according to an embodiment of the present disclosure
- FIG. 1B is a schematic cross-sectional view of the touch component taken along line A-A' of FIG. 1A;
- FIG. 1C is a schematic view showing a dimensional relationship in a cross section of the touch component shown in FIG. 1B;
- FIG. 2 is a schematic cross-sectional view of a display panel in accordance with an embodiment of the present disclosure
- FIG. 3 is a schematic cross-sectional view of a display panel in accordance with another embodiment of the present disclosure.
- FIG. 4 is a schematic cross-sectional view of a display panel in accordance with still another embodiment of the present disclosure.
- FIG. 5 is a diagram of a process of a method of fabricating a touch component in accordance with an embodiment of the present disclosure
- FIG. 6 is a diagram of a process of a method of fabricating a touch component in accordance with another embodiment of the present disclosure; a simulation of the light and dark stripes produced by the display panel;
- Fig. 8 shows the relationship between the level of the moiré generated by the display panel and the number of the second touch electrode portions.
- orientation terms “upper”, “lower”, “left”, “right”, “top” or “bottom” as used herein are used to refer to the orientations shown in the drawings. These orientation terms are for convenience only. The description is not to be construed as limiting the disclosure.
- FIG. 1A is a schematic plan view of a touch component according to an embodiment of the present disclosure.
- FIG. 1B is a schematic cross-sectional view of the touch assembly shown in FIG. 1A along AA′.
- the touch component 100 includes a substrate 10 and a plurality of touch electrodes disposed on the substrate 10.
- Each touch electrode includes a first touch electrode portion 11 and a first touch electrode portion.
- the plurality of first touch electrode portions 11 are disposed at intervals of the first period L1
- the plurality of second touch electrode portions 12 are disposed on each of the first touch electrode portions 11 at intervals of the second period L2, and the second period L2 is smaller than The first period Ll.
- the first period L1 of the first touch electrode portion 11 may be approximately 50 ⁇ m, and the second period L2 of the second touch electrode portion 12 may be approximately 10 ⁇ ⁇ .
- the substrate 10 may be a glass substrate.
- the first touch electrode portion 11 and the second touch electrode portion 12 may be made of transparent germanium.
- the first period and the second period refer to lengths of one arrangement period of the regular arrangement of the first touch electrode portion 11 and the second touch electrode portion 12, respectively.
- the frequency of the touch electrode (or the touch electrode portion) may be defined as the number of touch electrodes (touch electrode portions) distributed over a certain length of the display panel, and the frequency of the pixel electrodes may be Defined as the number of pixel electrodes distributed over a certain length of the display panel, the period of the pixel electrode may be defined as the length of one arrangement period of the regular arrangement of the pixel electrodes.
- a first touch electrode portion 11 and a plurality of second touch electrode portions 12 disposed on a first touch electrode portion 11 are used in place of the conventional touch component.
- One of the touch electrodes, and the period of the first touch electrode portion 11 is substantially equal to the period of the touch electrodes in the conventional touch device, and the period of the second touch electrode portion 12 is smaller than that in the conventional touch device.
- the period of the electrode is much larger than the frequency of the pixel electrode in the display panel, thereby improving the frequency and touch of the pixel electrode in the conventional touch display panel.
- the frequency of the second touch electrode portion is greater than the frequency of the first touch electrode portion, so that the frequency of occurrence of light and dark stripes in the display panel is increased, so that the light and dark stripes are not easily visible to the human eye. Distinguishing and perceiving also improves the visual discomfort caused by light and dark stripes.
- the period of the first touch electrode portion 11 may be 2-10 times of the period of the second touch electrode portion 12.
- the frequency of the second touch electrode portion 12 may be 2-10 times the frequency of the first touch electrode portion 11.
- the period of the second touch electrode portion and the period of the pixel electrode are greatly different to reduce the moiré phenomenon.
- three first touch electrode portions 12 are disposed on each of the first touch electrode portions 11, and the period of the first touch electrode portion 11 is the period of the second touch electrode portion 12.
- the frequency of the second touch electrode portion 12 is approximately three times that of the first touch electrode portion 11.
- the first touch electrode portion 11 and the second touch electrode portion 12 each have a trapezoidal cross section, and the oblique side S1 of the trapezoidal cross section of the first touch electrode portion 11 and the second touch electrode
- the positions of the oblique sides S2 of the trapezoidal cross section of the portion 12 are offset from each other.
- Fig. 1C is a schematic view showing the dimensional relationship in the cross section of the touch component shown in Fig. 1B.
- the width W1 of the horizontal projection of the oblique side S1 of the trapezoidal cross section of the first touch electrode portion 11 on the substrate 10 is equal to the oblique side S2 of the trapezoidal cross section of the second touch electrode portion 12 on the substrate 10.
- the width of the horizontal projection on the W2. For example, both are 0.1 ⁇ ⁇ .
- the width of the dark stripe formed by the oblique side S1 of the first touch electrode portion 11 is substantially equal to the width of the dark stripe formed by the oblique side S2 of the second touch electrode portion 12, so that the dark stripe looks relatively uniform.
- first touch electrode portion 11 and the second touch electrode portion 12 may be arranged such that the oblique projection S1 of the trapezoidal cross section of the first touch electrode portion 11 has a horizontal projection XI and a second touch on the substrate 10 Electrode part The horizontal projection X2 of the oblique side S2 of the trapezoidal cross section of the sub- 12 is substantially evenly distributed on the substrate 10.
- both XI and X2 are 0.1 ⁇ m wide, and the spacing between adjacent XI and X2 or XI and XI or X2 and X2 is 5 ⁇ . In this way, the dark stripes can be evenly distributed over the entire display panel, which is visually difficult to be perceived by the human eye.
- each of the first touch electrode portion 11 and the second touch electrode portion 12 has a thickness equal to a half wavelength of light passing through the first touch electrode portion 11 or the second touch electrode portion 12. Multiples.
- the film thicknesses of the first touch electrode portion 11 and the second touch electrode portion 12 satisfy the optical interference cancellation condition, thereby improving the light transmittance and increasing the brightness of the display panel.
- the transmittance of visible light is the highest when the transmittance of yellow-green light is the highest in visible light, the main considerations are when designing the thicknesses of the first touch electrode portion 11 and the second touch electrode portion 12. The wavelength of yellow-green light.
- the first touch electrode portion 11 and the second touch electrode portion 12 form a unitary structure.
- the present disclosure is not limited thereto, and the first touch electrode portion 11 and the second touch electrode portion 12 may be formed into a layered structure from different materials.
- the thickness of the first touch electrode portion 11 and the thickness of the second touch electrode portion 12 may be the same or different; the slope angle of the trapezoidal cross section of the first touch electrode portion 11 and the second touch The slope angle of the trapezoidal cross section of the control electrode portion 12 may be the same or different.
- the first touch electrode portion 11 and the second touch electrode portion 12 may have an isosceles or a non-isometric ladder-shaped cross section. The effect of reducing moiré and light and dark stripes of the present disclosure can be achieved by providing a plurality of second touch electrode portions 12 on the first touch electrode portion 11 to increase the frequency of the touch electrodes.
- the touch component 100 of the above embodiment of the present disclosure can be used for SLOC (all touch electrodes are on the surface of the display panel) touch products or HIC (partial touch electrodes on the display panel surface) touch products.
- Figure 2 shows the touch products in which all of the touch electrodes are on the surface of the display panel.
- the display panel 200 includes a TFT array substrate 21, a liquid crystal layer 22, a color film layer 23, and a glass substrate 24 which are stacked.
- a plurality of touch electrodes 25 are formed on the glass substrate 24.
- the components formed by the glass substrate 24 and the touch electrodes 25 correspond to the touch components 100 as shown in FIGS. 1A and 1B.
- the glass substrate 24 corresponds to the substrate 10 shown in FIG. 1B.
- Each of the touch electrodes 25 includes a first touch electrode portion 11 and a plurality of second touch electrodes disposed on each of the first touch electrode portions 11. Electrode portion 12. The plurality of first touch electrode portions 11 are disposed on the glass substrate 24 at a first period interval, and the plurality of second touch electrode portions 12 are disposed on each of the first touch electrode portions 11 at a second period interval. The period is less than the first period.
- the touch electrode 25 can be a touch driving electrode or a touch sensing electrode.
- the color film layer 23 includes, for example, a red filter layer 23R, a green filter layer 23G, and a blue filter layer 24B arranged in an array, a red filter layer 23R, and a green filter layer.
- Each of 23G and blue filter layer 24B corresponds to one pixel electrode.
- 2 shows a pixel electrode corresponding to one touch electrode 25 happensing.
- each touch electrode 25 can include a first touch electrode portion 11 and two second touch electrode portions 12 .
- the period of the pixel electrode in the display panel 200 may be 1-3 times of the distribution period of the first touch electrode portion, and the period of the first touch electrode portion 11 may be The distribution period of the second touch electrode portion 12 is 2-10 times.
- 1-3 first touch electrode portions 11 are disposed on each of the pixel electrodes, and 2-10 second touch electrode portions 12 are disposed on each of the first touch electrode portions 11.
- the embodiment of the present disclosure sets each touch electrode to include the first touch electrode portion and the second touch electrode portion.
- the two layers are configured such that the period of the first touch electrode portion corresponds to the period of the touch electrode in the conventional display panel, and the period of the second touch electrode portion is set to be smaller than the period of the first touch electrode portion, thereby, the second touch
- the frequency of the control electrode portion is different from the frequency of the pixel electrode, and the moiré phenomenon caused by the frequency of the pixel electrode being close to the frequency of the touch electrode can be improved.
- the frequency of the second touch electrode portion is greater than the frequency of the first touch electrode portion, so that the frequency of occurrence of light and dark stripes in the display panel is increased, so that the light and dark stripes are not easily visible to the human eye. Distinguishing and perceiving also improves the visual discomfort caused by light and dark stripes.
- the embodiment of Fig. 2 shows the case where the substrate of the touch component is a glass substrate of a color film substrate.
- the substrate of the touch component 100 can be separately fabricated and bonded to the glass substrate of the color film substrate facing away from the array substrate. This embodiment can also obtain the effect of improving the moiré and the light and dark stripes of the display panel of the above embodiment.
- the display panel 300 includes a TFT array substrate 31, a liquid crystal layer 32, a color filter layer 33, and a glass substrate 34 which are stacked.
- the touch electrodes include a plurality of touch electrodes 35a formed on the surface of the glass substrate 34, such as touch driving electrodes.
- the touch electrode 35b may be formed on a surface of the array substrate 31 facing the glass substrate 34.
- the components formed by the glass substrate 34 and the touch electrode 35a correspond to the touch component 100 shown in FIGS. 1A and 1B.
- the glass substrate 34 corresponds to the substrate 10 shown in FIG. 1B.
- Each of the touch electrodes 35a includes a first touch electrode portion 11 and a plurality of second touch electrodes disposed on each of the first touch electrode portions 11. Electrode portion 12.
- the plurality of first touch electrode portions 11 are disposed on the glass substrate 34 at a first period interval
- the plurality of second touch electrode portions 12 are disposed on each of the first touch electrode portions 11 at a second period interval. The period is less than the first period.
- the touch electrode 35a may have a structure as shown in FIGS.
- the touch electrode 35b may be a structure of a conventional touch electrode.
- Other aspects of this embodiment are the same as those of the embodiment shown in Fig. 2. Therefore, this embodiment can also obtain the effect of improving the moiré and the light and dark stripes of the display panel of the above embodiment.
- FIG. 4 is a schematic cross-sectional view of a display panel in accordance with another embodiment of the present disclosure, showing the use of the touch assembly of FIG. 1A in an OLED panel.
- the display panel 400 is an OLED panel, and includes The substrate 40, the lower electrode 41, the organic light-emitting layer 42 and the upper electrode 43, and the upper cover 44 are included.
- a plurality of touch electrodes 45 are formed on the upper cover 44.
- the assembly formed by the glass substrate 44 and the touch electrode 45 has the structure of the touch assembly 100 as shown in FIGS. 1A and 1B.
- the glass substrate 44 corresponds to the substrate 10 shown in FIG. 1B.
- Each of the touch electrodes 45 includes a first touch electrode portion 11 and a plurality of second touch electrodes disposed on each of the first touch electrode portions 11. Electrode portion 12. The plurality of first touch electrode portions 11 are disposed at a first period interval, and the plurality of second touch electrode portions 12 are disposed on each of the first touch electrode portions 11 at a second period interval, and the second period is less than the first period. .
- the touch electrode 45 can be a touch driving electrode or a touch sensing electrode.
- Other aspects of this embodiment are similar to the embodiment shown in FIG. 2. Therefore, this embodiment can also obtain the effect of improving the moiré and the light and dark stripes of the display panel of the above embodiment.
- the display panels of the embodiments of FIG. 2, FIG. 3 and FIG. 4 are only schematic views, and those skilled in the art should understand that the display panel further includes other necessary known structures, such as a backlight module, a polarizer, and a quarter-wave plate. Structures such as pixel electrodes, common electrodes, and the like are not specifically described herein.
- a method of manufacturing the touch control assembly 100 includes the following steps: First, a substrate 10 as shown in FIG. 1B is provided, and the substrate 10 is, for example, a separate glass substrate or a liquid crystal display. a plurality of touch electrodes are formed on the substrate 10 such that each touch electrode includes a first touch electrode portion 11 and a plurality of the first touch electrode portions 11
- the second touch electrode portion 12 is disposed on the substrate 10 at a first period L1, and the second touch electrode portion 12 is disposed at each second touch at a second period L2.
- the second period L2 is smaller than the first period L1.
- FIG. 5 illustrates a specific process of a method of fabricating a touch component in accordance with one embodiment of the present disclosure.
- the substrate 10 is provided.
- the substrate 10 is specifically a glass substrate or other substrate.
- step S52 a plurality of first touch electrode portions 11 are formed on the substrate 10, and the plurality of first touch electrode portions 11 are disposed at a first period interval.
- step S53 a plurality of second touch electrode portions 12 are formed on each of the first touch electrode portions 11, and the plurality of second touch electrode portions 12 are arranged at a second period interval.
- the second period is less than the first period.
- the first period of the first touch electrode portion 11 may be 2-10 times of the second period of the second touch electrode portion 12.
- forming the plurality of first touch electrode portions 11 on the substrate 10 includes: forming a first electrode layer on the substrate 10; patterning the first electrode layer by a first photolithography process by using the first mask to form a plurality of The first touch electrode portion 11 is annealed to obtain a stable structure of the first touch electrode portion 11.
- Forming a plurality of second touch electrode portions 12 on each of the first touch electrode portions 11 includes: forming a second electrode layer on the substrate 10 on which the plurality of first touch electrode portions 11 are formed, using a second mask The second electrode layer is patterned by a second photolithography process to form a plurality of second touch electrode portions 12 on each of the first touch electrode portions 11, and is annealed to obtain the touch device 100.
- the material of the first electrode layer and the second electrode layer may be transparent ITO.
- the total thickness of the first electrode layer and the second electrode layer is substantially equal to or slightly larger than the thickness of the electrode layer of the conventional touch electrode.
- each of the first touch electrode portions 11 and the plurality of second touch electrode portions 12 disposed on each of the first touch electrode portions 11 constitute a touch electrode of the present disclosure and correspond to a conventional touch.
- the control unit can make the cross-sectional area (volume) of each touch electrode of the present disclosure equal to the cross-sectional area (volume) of each of the conventional touch electrodes, so that the resistivity of the touch electrode can be ensured.
- the touch performance of the touch panel is unchanged.
- the method for manufacturing the touch component of this embodiment adopts a common mask, and the manufacturing process is also relatively simple.
- FIG. 6 is a diagram of a specific process of a method of manufacturing a touch component according to another embodiment of the present disclosure.
- the substrate 10 is provided.
- the substrate 10 is specifically a glass substrate or other substrate.
- step S62 a layer of electrode layer 13 having a uniform thickness is formed on the substrate 10, and the thickness of the electrode layer 13 is substantially equal to or slightly larger than the thickness of the electrode layer of the conventional touch electrode.
- the electrode layer 13 is patterned such that the electrode layer 13 forms a plurality of first touch electrode portions 11 and a plurality of second touch electrode portions 12.
- the plurality of first touch electrode portions 11 are disposed on the substrate 10 at a first periodic interval
- the plurality of second touch electrode portions 12 are disposed at each of the first intervals at a second period.
- the second period is smaller than the first period.
- the first period of the first touch electrode portion 11 may be 2-10 times of the second period of the second touch electrode portion 12.
- the patterned electrode layer 13 includes: patterning the electrode layer by a photolithography process using a halftone mask to form a plurality of first touch electrode portions 11 and a plurality of second touch electrode portions 12.
- the method of manufacturing the touch panel of this embodiment employs a halftone mask, which can reduce the number of masks and simplify the manufacturing process.
- the above shows an embodiment of a method of manufacturing the touch assembly of the present disclosure.
- the method of manufacturing the touch component of the present disclosure is not limited to the above embodiment, and for example, a touch assembly as shown in Figs. 1A and 1B can be formed by a machining method.
- Figure 7 shows a simulation of the light and dark stripes produced by the display panel.
- the broken line indicates the light and dark stripes of the display panel of the conventional structure
- the solid line indicates the light and dark stripes of the display panel of the embodiment of the present disclosure.
- the abscissa in Fig. 7 indicates the position at which the light and dark stripes are generated, and the ordinate indicates the transmittance of the display panel.
- the frequency of the light and dark stripes of the display panel of the presently disclosed embodiment is increased, which is visually less noticeable.
- Fig. 8 shows the relationship between the level of the moiré generated by the display panel and the number of the second touch electrode portions.
- the abscissa indicates the number of second touch electrode portions corresponding to one sub-pixel on the display panel, and the ordinate indicates the moiré level. It can be seen that the number of the second touch electrode portions is increased from one to ten, and the moiré level is gradually lightened.
- a touch panel, a display panel, and a touch panel manufacturing method are provided by providing a stacked first touch electrode portion and a second touch electrode portion on a substrate, and Two touch The arrangement period of the electrode portion is smaller than the arrangement period of the first touch electrode portion, so that the second touch electrode portion has a larger frequency, which can improve the light and dark stripes and the moiré phenomenon of the touch display panel.
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CN108874244B (zh) * | 2017-05-12 | 2023-05-30 | 京东方科技集团股份有限公司 | 触控面板及触控装置 |
CN107678588B (zh) | 2017-09-27 | 2021-01-26 | 京东方科技集团股份有限公司 | 触控屏和触控显示装置 |
CN109582162B (zh) * | 2017-09-28 | 2024-06-04 | 京东方科技集团股份有限公司 | 触控显示模组及其制作方法、触控显示装置 |
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CN104199575A (zh) * | 2014-08-29 | 2014-12-10 | 昆山龙腾光电有限公司 | 触控显示装置及其制作方法 |
CN204515258U (zh) * | 2015-01-30 | 2015-07-29 | 深圳莱宝高科技股份有限公司 | 一种3d触控显示装置 |
CN105404418A (zh) * | 2015-11-03 | 2016-03-16 | 京东方科技集团股份有限公司 | 触控屏及其制备方法、显示面板和显示装置 |
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JP2009211377A (ja) * | 2008-03-04 | 2009-09-17 | Nec Lcd Technologies Ltd | タッチパネル、液晶表示装置、及びそれらの製造方法 |
CN101424817B (zh) * | 2008-12-17 | 2010-07-21 | 友达光电股份有限公司 | 制作彩色滤光触控基板的方法 |
TW201033640A (en) * | 2009-03-03 | 2010-09-16 | Ind Tech Res Inst | Electrowetting display devices |
CN103309536B (zh) * | 2013-06-13 | 2016-12-28 | 北京京东方光电科技有限公司 | 一种触摸屏及显示装置 |
KR101584423B1 (ko) * | 2014-02-21 | 2016-01-11 | 하이디스 테크놀로지 주식회사 | 모아레 감소를 위한 오버코트층을 구비한 터치 패널, 터치 패널을 구비한 액정표시장치 및 터치 패널 형성 방법 |
TWI597670B (zh) * | 2016-01-06 | 2017-09-01 | 晨星半導體股份有限公司 | 指紋辨識電極結構 |
TWI574192B (zh) * | 2016-03-04 | 2017-03-11 | 緯創資通股份有限公司 | 觸控面板 |
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CN104199575A (zh) * | 2014-08-29 | 2014-12-10 | 昆山龙腾光电有限公司 | 触控显示装置及其制作方法 |
CN204515258U (zh) * | 2015-01-30 | 2015-07-29 | 深圳莱宝高科技股份有限公司 | 一种3d触控显示装置 |
CN105404418A (zh) * | 2015-11-03 | 2016-03-16 | 京东方科技集团股份有限公司 | 触控屏及其制备方法、显示面板和显示装置 |
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US10481715B2 (en) | 2019-11-19 |
CN106648219A (zh) | 2017-05-10 |
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