WO2022199071A1 - 显示装置、触控显示面板、触控面板及其制造方法 - Google Patents

显示装置、触控显示面板、触控面板及其制造方法 Download PDF

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Publication number
WO2022199071A1
WO2022199071A1 PCT/CN2021/131566 CN2021131566W WO2022199071A1 WO 2022199071 A1 WO2022199071 A1 WO 2022199071A1 CN 2021131566 W CN2021131566 W CN 2021131566W WO 2022199071 A1 WO2022199071 A1 WO 2022199071A1
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WIPO (PCT)
Prior art keywords
light
substrate
touch
display
layer
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PCT/CN2021/131566
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English (en)
French (fr)
Inventor
闵航
姜立清
张贵玉
罗鸿强
王强
Original Assignee
京东方科技集团股份有限公司
成都京东方光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 成都京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US18/283,224 priority Critical patent/US20240094837A1/en
Publication of WO2022199071A1 publication Critical patent/WO2022199071A1/zh

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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
    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • 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

Definitions

  • the present disclosure relates to the field of display technology, and in particular, to a display device, a touch display panel, a touch panel, and a manufacturing method of the touch panel.
  • logo graphics such as trademarks, ie LOGO, are usually set in specific positions.
  • the general logo pattern is usually a fixed structure with a specific color display pattern, which is easy to wear and fall off after long-term use.
  • the purpose of the present disclosure is to provide a display device, a touch display panel, a touch panel, and a manufacturing method of the touch panel.
  • a touch panel comprising:
  • a touch layer disposed on one side of the substrate
  • the light-shielding layer is arranged on the same side of the substrate as the touch-control layer, the light-shielding layer is annular, and surrounds the touch-control layer;
  • the light-transmitting portion includes light-transmitting holes distributed in an array, and the aperture ratio of the light-transmitting portion satisfies the following formula:
  • T N ⁇ (D/2) 2 /A;
  • T is the aperture ratio
  • N is the number of light-transmitting holes in the light-transmitting portion
  • D is the diameter of the light-transmitting holes
  • A is the area of the orthographic projection of the light-transmitting portion on the substrate.
  • the aperture ratio is not greater than 0.8.
  • the distance between adjacent light-transmitting holes is smaller than the aperture of any one of the light-transmitting holes.
  • the aperture of the light-transmitting holes is 5 ⁇ m-10 ⁇ m, and the distance between two adjacent light-transmitting holes is 3 ⁇ m-8 ⁇ m.
  • the material of the light shielding layer includes photoresist.
  • the touch layer includes:
  • a plurality of second touch electrodes extend along the column direction and are distributed along the row direction; any of the second touch electrodes intersects with each of the first touch electrodes, and are insulated at the intersections.
  • a manufacturing method of a touch panel comprising:
  • a ring-shaped light-shielding layer is formed on one side of the substrate; the light-shielding layer includes a light-transmitting portion in a logo pattern; the light-transmitting portion includes an array of light-transmitting holes, and the aperture ratio of the light-transmitting portion satisfies the following formula:
  • T N ⁇ (D/2) 2 /A;
  • T is the aperture ratio
  • N is the number of light-transmitting holes in the light-transmitting portion
  • D is the diameter of the light-transmitting holes
  • A is the area of the orthographic projection of the light-transmitting portion on the substrate
  • a touch control layer is formed on the side of the substrate on which the light shielding layer is provided, and the touch control layer is located in a range surrounded by the light shielding layer.
  • a touch display panel including:
  • a display substrate disposed on the side of the light shielding layer away from the substrate; the display substrate has a first display area and a second display area located outside the first display area; the first display area is located in the The orthographic projection on the substrate is located within the range surrounded by the light shielding layer; the orthographic projection of the second display area on the substrate at least partially coincides with the orthographic projection of the light-transmitting portion on the substrate .
  • the display substrate includes:
  • a light-emitting device layer disposed on the side of the driving backplane close to the touch panel, and comprising a plurality of light-emitting devices, and a plurality of the light-emitting devices are arranged in the first display area and the second display area device.
  • the display substrate includes:
  • liquid crystal layer disposed on the side of the array substrate close to the touch panel
  • a color filter substrate is arranged on the side of the liquid crystal layer close to the touch panel; the color filter substrate includes a plurality of filter parts, and the first display area and the second display area are each provided with a plurality of filter parts. filter section.
  • a touch display panel including:
  • a display substrate disposed on the side of the light shielding layer away from the substrate;
  • the light-emitting element is arranged between the light-shielding layer and the display substrate, and the light-emitting element is used for emitting light to the light-transmitting part.
  • a display device comprising:
  • the casing has a light-transmitting area, and the light-transmitting area and the light-transmitting part are on the substrate
  • the orthographic projections coincide at least partially.
  • FIG. 1 is a top view of an embodiment of the disclosed touch panel.
  • FIG. 2 is a cross-sectional view of an embodiment of the disclosed touch panel.
  • FIG. 3 is a partial schematic diagram of an embodiment of the disclosed touch panel.
  • FIG. 4 is a flow chart of an embodiment of the disclosed manufacturing method.
  • FIG. 5 is a cross-sectional view of an embodiment of the disclosed touch display panel.
  • FIG. 6 is a top view of a display substrate in an embodiment of the disclosed touch display panel.
  • FIG. 7 is a cross-sectional view of another embodiment of the disclosed touch display panel.
  • FIG. 8 is a cross-sectional view of an embodiment of a display device of the present disclosure.
  • FIG 9 is a cross-sectional view of a housing in an embodiment of a display device of the present disclosure.
  • FIGS. 8 and 9 1. touch panel; 11, substrate; 110, touch area; 111, edge area; 12, touch layer; 121, first touch electrode; 122 1, the second touch electrode; 1221, the connection unit; 1222, the electrode unit; 13, the light shielding layer; 131, the light transmission part; 1310, the light transmission hole; 2, the display substrate; 21, the first display area; 22, the second Display area; 23. Peripheral area; 3. Light-emitting element; 4. Housing; 41. Light-transmitting area.
  • 210 display area
  • 220 peripheral area
  • Example embodiments will now be described more fully with reference to the accompanying drawings.
  • Example embodiments can be embodied in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.
  • the same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.
  • the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale.
  • Embodiments of the present disclosure provide a touch panel, which can be used for a touch display panel.
  • the touch display panel can include a display substrate and the touch panel of the present disclosure.
  • the touch panel can be used to sense a user's touch operation, determine the touch control position.
  • the display substrate may be an OLED (organic electroluminescence) display substrate or a liquid crystal display substrate, which is not particularly limited herein.
  • the touch panel 1 of the present disclosure may include a substrate 11 , a touch layer 12 and a light shielding layer 13 , wherein:
  • the touch layer 12 is disposed on one side of the substrate 11 .
  • the light shielding layer 13 and the touch layer 12 are disposed on the same side of the substrate 11 , the light shielding layer 13 is annular and surrounds the touch layer 12 ;
  • the touch panel of the present disclosure can use the second display area 22 of the display substrate 2 or a special light source to emit light to the light-transmitting portion 131.
  • the logo graphics can be displayed in the casing 4 instead of using a fixed structure and a fixed paint color to display the logo graphics, which can avoid the wear of the logo graphics, and the color of the logo graphics can be adjusted in real time through the control of the luminous color.
  • the logo graphics may not be displayed to reduce energy consumption.
  • the substrate 11 may be a flat plate structure, which may adopt a single-layer or multi-layer structure, and the material of the substrate 11 may include hard materials such as glass, and may also include polyimide, etc.
  • the flexible material is not particularly limited here.
  • the substrate 11 may include a touch area 110 and an edge area 111 surrounding the touch area 110 , wherein the touch area 110 and the edge area 111 are only divided according to the functions of the film layers carried, and may not be The actual observed boundary.
  • the touch layer 12 can be disposed on one side of the substrate 11 and located in the touch area 110 for sensing the user's touch operation, and determining the touch area 110 according to the touch operation, so as to Control the screen displayed on the display board to realize human-computer interaction.
  • the touch layer 12 may adopt a self-capacitance structure or a mutual capacitance structure, and of course, may also be a resistive structure, etc., which is not particularly limited here, as long as the touch function can be realized.
  • the touch layer 12 is a mutual capacitance structure. Specifically, as shown in FIG. 1 , the touch layer 12 may include a plurality of first touch electrodes 121 and a plurality of second touch electrodes Electrode 122, wherein:
  • Each of the first touch electrodes 121 may extend along the row direction and be spaced apart along the column direction.
  • the plurality of second touch electrodes 122 may extend along the column direction and be spaced apart along the row direction. Any one of the second touch electrodes 122 intersects with each of the first touch electrodes 121 and is insulated at the intersection. in particular:
  • the touch layer 12 may include a conductive layer, an insulating layer and a connection layer, wherein:
  • the conductive layer is disposed in the touch area 110 of the substrate 11 , and includes a plurality of first touch electrodes 121 .
  • the first touch electrodes 121 may extend along the row direction and are spaced apart along the column direction.
  • the conductive layer may further include a plurality of electrode unit groups, each electrode unit group extending along the column direction and distributed along the row direction, each electrode unit group including a plurality of electrode units 1222 distributed along the column direction, two adjacent first contact A row of electrode units 1222 distributed along the row direction is disposed between the control electrodes 121 .
  • the row direction is shown as the X direction in FIG. 1
  • the column direction is shown as the Y direction in FIG. 1 .
  • the insulating layer covers the conductive layer, which is a transparent insulating material, and the surface of the insulating layer facing away from the substrate 11 may be flat.
  • connection layer is provided on the surface of the insulating layer facing away from the substrate 11 .
  • the connection layer may include a plurality of connection units 1221 , and in the column direction, two adjacent electrode units 1222 are connected by a connection unit 1221 .
  • Any second touch electrode 122 includes a row of connection units 1221 and the electrode units 1222 connected thereto.
  • the material of the connection layer can be a transparent conductive material, such as ITO (Indium Tin Oxide).
  • first touch electrodes 121 and the second touch electrodes 122 can be interchanged, that is, the first touch electrodes 121 can also extend in the column direction and are distributed in the row direction; the second touch electrodes 122 can also be Extends in the row direction and distributes in the column direction.
  • FIG. 1 is only illustrative, and does not constitute a specific limitation on the directions and patterns of the first touch electrodes 121 and the second touch electrodes 122 .
  • the light shielding layer 13 and the touch layer 12 are disposed on the same side of the substrate 11 , for example, the two can be disposed on the same surface of the substrate 11 .
  • the light shielding layer 13 may be located in the edge region 111 of the substrate 11 and disposed around the touch layer 12 , that is, the touch layer 12 is located in the range surrounded by the light shielding layer 13 .
  • the light-shielding layer 13 can be made of a resin material such as photoresist, and is not light-transmitting. Of course, the light-shielding layer 13 can also be made of other materials, as long as it is light-shielding.
  • the thickness of the light shielding layer 13 is not less than that of the touch layer 12 .
  • the shape of the orthographic projection of the light-shielding layer 13 on the substrate 11 can be determined by the shape of the substrate 11. If the substrate 11 is a rectangle, the shape of the orthographic projection of the light-shielding layer 13 on the substrate 11 can be a rectangle.
  • the bottom 11 is circular, and the shape of the orthographic projection of the light shielding layer 13 on the substrate 11 may be circular.
  • the light-shielding layer 13 may include a light-transmitting portion 131.
  • the light-transmitting portion 131 is located in a local area of the light-shielding layer 13 and has a preset logo pattern, and the specific shape of the logo pattern is not described here. Special restrictions, which can be geometric figures or words, etc., are used to display the trademark or other logo patterns of the product.
  • the pattern shown by the logo graphics can be displayed, and if no light passes through the light-transmitting portion 131 , the logo graphics are not displayed.
  • the light-transmitting portion 131 may include a plurality of light-transmitting holes 1310 distributed in an array, and the light-transmitting holes 1310 pass through the light shielding layer 13 in a direction perpendicular to the substrate 11 . , so that light can pass through.
  • a specific pattern that is, a logo pattern, can be formed through the distribution of the light-transmitting holes 1310, and each light-transmitting hole 1310 is a basic element constituting the logo pattern.
  • the light-transmitting portion 131 may also be a continuous and completely light-transmitting region.
  • the aperture ratio of the light-transmitting portion 131 satisfies the following formula:
  • T N ⁇ (D/2) 2 /A;
  • T is the aperture ratio
  • N is the number of light-transmitting holes 1310 in the light-transmitting portion 131
  • D is the diameter of the light-transmitting holes 1310
  • A is the area of the orthographic projection of the light-transmitting portion 131 on the substrate 1
  • the aperture ratio can be made not greater than 0.8, that is, the area of the light transmission area in the light transmission portion 131 is not larger than 80% of the total area.
  • the light-transmitting hole 1310 in the light-transmitting portion 131 needs to be shielded.
  • the size and density are limited.
  • the aperture D of the light-transmitting holes 1310 can be 5 ⁇ m-10 ⁇ m, 5 ⁇ m, 7 ⁇ m, 8 ⁇ m and 10 ⁇ m, etc.; It is 3 ⁇ m-8 ⁇ m, such as 3 ⁇ m, 5 ⁇ m, 6 ⁇ m and 8 ⁇ m, etc. Further, the aperture D of the light-transmitting holes 1310 may be 5 ⁇ m-10 ⁇ m, and the distance d between two adjacent light-transmitting holes 1310 is 5 ⁇ m-6 ⁇ m.
  • the light-transmitting hole 1310 is a circular hole, its aperture is the diameter of the light-transmitting hole 1310; if the light-transmitting hole 1310 is a regular polygonal hole, the aperture is the diameter of its circumscribed circle. Diameter; if the light-transmitting hole 1310 has other shapes, the aperture is the distance between the two points on the edge of the light-transmitting hole 1310 that are farthest apart. That is to say, no matter what the shape of the light-transmitting hole 1310 is, its aperture is not greater than the distance between the two farthest points on its edge. Meanwhile, the distance between two adjacent light-transmitting holes 1310 is the distance between the closest points of the two light-transmitting holes 1310 .
  • the distance d between adjacent light-transmitting holes 1310 can be made smaller than the aperture D of any light-transmitting hole 1310 , that is, d ⁇ D, so as to avoid that the light-transmitting holes 1310 are too sparse and cannot be displayed clearly and variable. logo graphics.
  • the distance between two adjacent light-transmitting holes 1310 is 5 ⁇ m, and the aperture of the light-transmitting holes 1310 is 7 ⁇ m.
  • the present disclosure provides a manufacturing method of a touch panel, and the touch panel may be the touch panel of any of the above-mentioned embodiments.
  • the manufacturing method may include steps S110 and S120, wherein:
  • Step S110 forming an annular light shielding layer on one side of the substrate; the light shielding layer includes a light-transmitting portion in a logo pattern.
  • Step S120 forming a touch layer on the side of the substrate where the light shielding layer is provided, and the touch layer is located in a range surrounded by the light shielding layer.
  • the substrate can be made of glass, for example, it can be tempered white glass, and the light shielding layer can be made of black photoresist.
  • the substrate may be cleaned first, and then a layer of black photoresist may be scraped on the substrate. Then, the substrate and the black photoresist on it are put into the exposure machine, and the mask is used for exposure, and the pattern on the mask is transferred to the black photoresist. Then, it is developed in a developing solution, and the pattern of the logo pattern of the light-shielding layer and its light-transmitting portion is retained to obtain a light-shielding layer with a light-transmitting portion.
  • the light-transmitting portion 131 needs to cooperate with light to display the logo graphics. Therefore, a light source for emitting light to the light-transmitting portion 131 needs to be provided in the touch display panel.
  • the light-emitting device of the touch display panel itself is used as a light source to emit light to the light-transmitting portion 131 .
  • an independent light source can also be used to emit light to the light-transmitting portion 131 .
  • the present disclosure also provides a touch display panel, as shown in FIG. 5 and FIG. 6 , which may include a touch panel 1 and a display substrate 2 , wherein:
  • the touch panel 1 may be the touch panel 1 of any of the above-mentioned embodiments, and the structure of the touch panel 1 can be referred to the above embodiments of the touch panel 1 , which will not be repeated here.
  • the display substrate 2 is arranged on the side of the light shielding layer 13 away from the substrate 11; the display substrate 2 has a first display area 21 and a second display area 22 outside the first display area 21, the first display area 21 and the second display area 22 can both emit light toward the touch panel 1 .
  • the display substrate 2 has a peripheral area 23 surrounding the first display area 21, and the second display area 22 is located within the range of the peripheral area 23, that is, a partial area of the peripheral area 23 can emit light, and the partial area is is the second display area 22 .
  • the second display area 22 and the first display area 21 may be two spaced light-emitting areas, or may be continuous areas, that is, the second display area 22 may be the part of the first display area 21 extending into the peripheral area 23 .
  • the orthographic projection of the first display area 21 on the substrate 11 is located within the range surrounded by the light shielding layer 13, and is used to display a picture for the user to watch.
  • the orthographic projection of the second display area 22 on the substrate 11 at least partially overlaps with the orthographic projection of the light-transmitting portion 131 on the substrate 11 , and at least part of the light emitted by the second display area 22 can pass through the light-transmitting portion 131 to make the light transparent Section 131 displays a logo graphic.
  • the display area of the display substrate 2 itself can be used, and the second display area 22 can be used as a light source while displaying an image, so that the light-transmitting portion 131 can display a logo pattern.
  • the display substrate 2 may be an organic electroluminescence display panel.
  • the display substrate 2 may include a driving backplane and a light emitting device layer, wherein:
  • the driving backplane includes a driving circuit for driving the light emitting device to emit light.
  • the driving backplane includes a pixel area and a peripheral circuit area located outside the pixel area, the pixel area is the area of the driving backplane corresponding to the first display area 21 and the second display area 22, and the peripheral circuit area is the area corresponding to the driving backplane in the area of the peripheral area 23 .
  • the driving circuit can include pixel circuits and peripheral circuits.
  • the number of pixel circuits is multiple and located in the pixel area.
  • the pixel circuits can be pixel circuits such as 7T1C, 7T2C, 6T1C or 6T2C, as long as they can drive the light-emitting device to emit light. There is no special restriction on its structure.
  • the number of pixel circuits is the same as the number of light-emitting devices, and is connected to each light-emitting device in one-to-one correspondence, so as to control each light-emitting device to emit light.
  • nTmC indicates that a pixel circuit includes n transistors (represented by the letter "T") and m capacitors (represented by the letter "C").
  • the peripheral circuit is located in the peripheral circuit area and is connected to the pixel circuit for inputting driving signals to the pixel circuit so as to control the light-emitting device to emit light.
  • the peripheral circuit may include a gate driving circuit and a light-emitting control circuit, and of course, may also include other circuits, and the specific structure of the peripheral circuit is not limited herein.
  • the pixel circuit for driving the second display area 22 may be located in the area of the second display area 22 , that is, in the peripheral area 23 .
  • a space for accommodating the pixel circuits for driving the second display area 22 can also be formed by compressing part of the pixel circuits corresponding to the first display area 21, and the pixel circuits for driving the second display area 22 are arranged in the first display area 22. in the display area 21 .
  • the driving backplane can be formed by a plurality of film layers.
  • the driving backplane can include a substrate and a driving layer disposed on one side of the substrate, wherein the substrate can be a single-layer or multi-layer structure, and it can be rigid or flexible structure, no special restrictions are made here.
  • the above-mentioned driving circuit may be located in the driving layer.
  • the driving layer may include an active layer, a first gate insulating layer, a gate electrode, a second gate insulating layer, and an interlayer dielectric. layer, a first source and drain layer, a passivation layer, a first planar layer, a second source and drain layer, and a second planar layer, wherein:
  • the active layer is arranged on the substrate; the first gate insulating layer covers the active layer; the gate is arranged on the surface of the first gate insulating layer away from the substrate, and is opposite to the active layer; the second gate insulating layer covers the gate and The first gate insulating layer; the interlayer dielectric layer covers the second gate insulating layer; the first source and drain layers are arranged on the surface of the interlayer dielectric layer away from the substrate, and include a source electrode and a drain electrode, and the source electrode and the drain electrode are connected to the active
  • the passivation layer covers the first source and drain layer; the first flat layer covers the passivation layer; covering the second source-drain layer and the first flat layer.
  • the light-emitting device layer is disposed on the side of the driving backplane close to the touch panel 1 and includes a plurality of light-emitting devices, which can be connected to each pixel circuit in a one-to-one correspondence, so as to emit light under the driving of the driving circuit.
  • the light-emitting device can be connected to the second source-drain layer, and can emit light under the driving of the driving circuit.
  • the light-emitting device as an organic electroluminescent device as an example, the light-emitting device may include a first electrode, a light-emitting functional layer, and a second electrode that are sequentially stacked in a direction away from the driving backplane.
  • the light-emitting functional layer may include stacking a hole injection layer, a hole transport layer, a light-emitting material layer, an electron transport layer, and an electron injection layer in sequence along a direction away from the driving backplane, and by applying a driving signal to the first electrode and the second electrode, Holes and electrons are generated, and the holes and electrons are combined into excitons in the light-emitting material layer, and photons are radiated by the excitons, thereby generating visible light.
  • the specific light-emitting principle will not be described in detail here.
  • the display substrate 2 may include a first display area 21 and a second display area 22 , the orthographic projection of the first display area 21 on the substrate 11 is located within the range surrounded by the light shielding layer 13 , and the second display area 22 is located in the first display area 21 and the range of the second display area 22 is smaller than that of the first display area 21 .
  • the orthographic projection of the second display area 22 on the substrate 11 at least partially coincides with the orthographic projection of the light-transmitting portion 131 on the substrate 11 .
  • Both the first display area 21 and the second display area 22 are provided with a plurality of light-emitting devices, the light-emitting devices in the first display area 21 can be used to display images, and the light-emitting devices in the second display area 22 can be used as light sources to transmit light.
  • the portion 131 emits light to display the logo graphic.
  • the touch display panel may further include an encapsulation layer, which may cover the surface of the display substrate 2 close to the touch panel 1 , and the touch panel 1 is disposed on the side of the encapsulation layer away from the display substrate 2 .
  • the display substrate 2 may be a liquid crystal display substrate 2, and the display substrate 2 includes an array substrate, a liquid crystal layer and a color filter substrate, wherein:
  • the array substrate and the color filter substrate are arranged in a cell-to-cell arrangement, and the liquid crystal layer is arranged between the array substrate and the color filter substrate.
  • the display substrate 2 may also include pixel electrodes and common electrodes, both of which can be arranged on the array substrate and the color filter. Between the substrates, it is used to apply an electric field to the liquid crystal layer to adjust the deflection direction of the liquid crystal in the liquid crystal layer, so as to achieve the purpose of adjusting the light transmittance of the liquid crystal layer.
  • the color filter substrate includes a plurality of filter parts, and each filter part can transmit light of one color. According to the color of the filter part, the filter part can be divided into at least three types, and the color of the same filter part is the same. Different types of filters have different colors.
  • the display substrate 2 may include a first display area 21 and a second display area 22 , the orthographic projection of the first display area 21 on the substrate 11 is located within the range surrounded by the light shielding layer 13 , and the second display area 22 is located in the first display area 21 and the range of the second display area 22 is smaller than that of the first display area 21 .
  • the orthographic projection of the second display area 22 on the substrate 11 at least partially coincides with the orthographic projection of the light-transmitting portion 131 on the substrate 11 .
  • the first display area 21 and the second display area 22 are both provided with a plurality of filter parts, so that both the first display area 21 and the second display area 22 can emit light, so that the first display area 21 can be used to display the picture, and the second display area 22 can be used to display the picture.
  • the second display area 22 emits light to the light-transmitting part 131 to display the logo graphics.
  • the present disclosure also provides a touch display panel, as shown in FIG. 7 , which may include a touch panel 1 , a display substrate 2 and a light-emitting element 3 , wherein:
  • the touch panel 1 may be the touch panel 1 of any of the above-mentioned embodiments, and the structure of the touch panel 1 can be referred to the above embodiments of the touch panel 1 , which will not be repeated here.
  • the display substrate 2 is disposed on the side of the light shielding layer 13 away from the substrate 11 ; the display substrate 2 has a display area 210 and a peripheral area 220 surrounding the display area 210 , and the orthographic projection of the display area 210 on the substrate 11 is located around the light shielding layer 13 For displaying images, the orthographic projection of the peripheral region 220 on the substrate 1 is at least partially located within the light shielding layer 13 .
  • the light-emitting element 3 can be disposed between the light-shielding layer 13 and the display substrate 2 and correspond to the light-transmitting portion 131 , that is, the orthographic projection of the light-emitting element 3 on the substrate 11 and the light-transmitting portion 131 at least partially overlap, and the light-emitting element 3 is used for The light is emitted to the light-transmitting part 131 to display the logo pattern.
  • the structure of the light-emitting element 3 is not particularly limited here, as long as it can emit light, for example, the light-emitting element 3 can be a light-emitting diode. Meanwhile, the color and quantity of light emitted by the light-emitting element 3 are not particularly limited.
  • the present disclosure also provides a display device, as shown in FIG. 8 , which may include a touch display panel and a housing 4, wherein:
  • the touch display panel may be the touch display panel of any of the above-mentioned embodiments, and its structure and working principle can be referred to the above embodiments of the touch panel 1 and the touch display panel, which will not be repeated here.
  • the casing 4 is sleeved outside the touch display panel, and the light shielding layer 13 is located inside the casing 4 .
  • the casing 4 can be made of a light-shielding material, but in order to avoid the casing 4 from blocking the light-transmitting portion 131, the casing 4 can have a light-transmitting area 41, and the orthographic projections of the light-transmitting area 41 and the light-transmitting portion 131 on the substrate 11 at least partially overlap, The light transmitted through the light-transmitting portion 131 can be transmitted to the outside of the housing 4 through the light-transmitting area 41, so as to ensure that the user can see the logo graphics.
  • the housing 4 may include a frame, the frame may cover the edge of the touch display panel, the light-shielding layer 13 is located within the frame, and the light-transmitting area 41 may be disposed away from the frame. Display the surface of the substrate 2 .
  • the light-transmitting region 41 may have openings corresponding to the light-transmitting holes 1310 of the light-transmitting portion 131 one-to-one, so that the A logo pattern is formed in the light-transmitting area 41 .
  • the opening may be filled with a transparent material, or a transparent protective layer may be used to cover the light-transmitting area 41 .
  • the light-transmitting area 41 may also adopt a transparent material that is consistent with the shape and size of the logo graphics, as long as the logo graphics can be seen.
  • the display device of the present disclosure may be an electronic device with an image display function, such as a television, a notebook computer, a tablet computer, and a mobile phone, which will not be listed one by one here.

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Abstract

本公开关于一种显示装置、触控显示面板、触控面板及其制造方法，涉及显示技术领域。本公开的触控面板可包括衬底、触控层和遮光层，触控层设于衬底一侧。遮光层与触控层设于衬底的同一侧，遮光层呈环形，且围绕于触控层外；遮光层包括呈标识图形的透光部；透光部的开口率满足如下公式：T＝N×π×(D/2) 2/A；T为开口率，N为透光部中透光孔的数量，D为透光孔的直径，A为透光部在衬底上的正投影的面积。本公开的触控面板可实现标识图形的显示和关闭，避免标识图形磨损脱落。

Description

显示装置、触控显示面板、触控面板及其制造方法
交叉引用
本公开要求于2021年3月22日提交的申请号为202110302603.7名称为“显示装置、触控显示面板、触控面板及其制造方法”的中国专利申请的优先权，该中国专利申请的全部内容通过引用全部并入本文。
技术领域
本公开涉及显示技术领域，具体而言，涉及一种显示装置、触控显示面板、触控面板及触控面板的制造方法。
背景技术
目前，手机、笔记本电脑、平板电脑等电子设备已成为人们生活中的必需品。在这些电子设备中，通常会在特定的位置设置商标等标识图形，即LOGO。一般的标识图形通常为固定的结构配合特定的颜色展示的图案，长期使用，容易磨损脱落。
需要说明的是，在上述背景技术部分公开的信息仅用于加强对本公开的背景的理解，因此可以包括不构成对本领域普通技术人员已知的现有技术的信息。
公开内容
本公开的目的在于提供一种显示装置、触控显示面板、触控面板及触控面板的制造方法。
根据本公开的一个方面，提供一种触控面板，包括：
衬底；
触控层，设于所述衬底一侧；
遮光层，与所述触控层设于所述衬底的同一侧，所述遮光层呈环形，且围绕于所述触控层外；所述遮光层包括呈标识图形的透光部，所述透光部包括阵列分布的透光孔，所述透光部的开口率满足如下公式：
T＝N×π×(D/2) 2/A；
T为开口率，N为所述透光部中透光孔的数量，D为所述透光孔的直径，A为所述透光部在衬底上的正投影的面积。
在本公开的一种示例性实施例中，所述开口率不大于0.8。
在本公开的一种示例性实施例中，相邻所述透光孔的间距小于任一所述透光孔的孔径。
在本公开的一种示例性实施例中，所述透光孔的孔径为5μm-10μm，相邻两所述透光孔的间距为3μm-8μm。
在本公开的一种示例性实施例中，所述遮光层的材料包括光刻胶。
在本公开的一种示例性实施例中，所述触控层包括：
多个第一触控电极，沿行方向延伸，且沿列方向分布；
多个第二触控电极，沿所述列方向延伸，且沿行方向分布；任一所述第二触控电极均与各所述第一触控电极交叉，且在交叉处绝缘设置。
根据本公开的一个方面，提供一种触控面板的制造方法，包括：
在衬底一侧形成环形的遮光层；所述遮光层包括呈标识图形的透光部；所述透光部包括阵列分布的透光孔，所述透光部的开口率满足如下公式：
T＝N×π×(D/2) 2/A；
T为开口率，N为所述透光部中透光孔的数量，D为所述透光孔的直径，A为所述透光部在衬底上的正投影的面积；
在所述衬底设置有所述遮光层的一侧形成触控层，所述触控层位于所述遮光层围绕的范围内。
根据本公开的一个方面，提供一种触控显示面板，包括：
上述任意一项所述的触控面板；
显示基板，设于所述遮光层背离所述衬底的一侧；所述显示基板具有第一显示区和位于所述第一显示区外的第二显示区；所述第一显示区在所述衬底上的正投影位于所述遮光层围绕的范围内；所述第二显示区在所述衬底上的正投影与所述透光部在所述衬底上的正投影至少部分重合。
在本公开的一种示例性实施例中，所述显示基板包括：
驱动背板；
发光器件层，设于所述驱动背板靠近所述触控面板的一侧，且包括多个发光器件，所述第一显示区和所述第二显示区内均设有多个所述发光器件。
在本公开的一种示例性实施例中，所述显示基板包括：
阵列基板；
液晶层，设于所述阵列基板靠近所述触控面板的一侧；
彩膜基板，设于所述液晶层靠近所述触控面板的一侧；所述彩膜基板包括多个滤光部，所述第一显示区和所述第二显示区内均设有多个滤光部。
根据本公开的一个方面，提供一种触控显示面板，包括：
上述任意一项所述的触控面板；
显示基板，设于所述遮光层背离所述衬底的一侧；
发光件，设于所述遮光层和所述显示基板之间，所述发光件用于向所述透光部发光。
根据本公开的一个方面，提供一种显示装置，包括：
上述任意一项所述的触控显示面板；
外壳，套设于所述触控显示面板外，且所述遮光层位于所述外壳内；所述外壳具有透光区，所述透光区和所述透光部在所述衬底上的正投影至少部分重合。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本公开触控面板一实施方式的俯视图。
图2为本公开触控面板一实施方式的截面图。
图3为本公开触控面板一实施方式的局部示意图。
图4为本公开制造方法一实施方式的流程图。
图5为本公开触控显示面板一实施方式的截面图。
图6为本公开触控显示面板一实施方式中显示基板的俯视图。
图7为本公开触控显示面板另一实施方式的截面图。
图8为本公开显示装置一实施方式的截面图。
图9为本公开显示装置一实施方式中外壳的截面图。
附图标记说明：
图1-图6以及图8和图9中：1、触控面板；11、衬底；110、触控区；111、边缘区；12、触控层；121、第一触控电极；122、第二触控电极；1221、连接单元；1222、电极单元；13、遮光层；131、透光部；1310、透光孔；2、显示基板；21、第一显示区；22、第二显示区；23、外围区；3、发光件；4、外壳；41、透光区。
图7中：210、显示区；220、外围区。
具体实施方式
现在将参考附图更全面地描述示例实施方式。然而，示例实施方式能够以多种形式实施，且不应被理解为限于在此阐述的实施方式；相反，提供这些实施方式使得本公开将全面和完整，并将示例实施方式的构思全面地传达给本领域的技术人员。图中相同的附图标记表示相同或类似的结构，因而将省略它们的详细描述。此外，附图仅为本公开的示意性图解，并非一定是按比例绘制。
用语“一个”、“一”、“该”、“所述”和“至少一个”用以表示存在一个或多个要素/组成部分/等；用语“包括”和“具有”用以表示开放式的包括在内的意思并且是指除了列出的要素/组成部分/等之外还可存在另外的要素/组成部分/等；用语“第一”、“第二”等仅作为标记使用，不是对其对象的数量限制。
本公开实施方式提供了一种触控面板，可用于触控显示面板，该触控显示面板可包括显示基板和本公开的触控面板，触控面板可用于感应用户的触控操作，确定触控位置。该显示基板可以是OLED(有机电致 发光)显示基板，也可以是液晶显示基板，在此不做特殊限定。
如图1-图3所示，本公开的触控面板1可包括衬底11、触控层12和遮光层13，其中：
触控层12设于衬底11一侧。遮光层13与触控层12设于衬底11的同一侧，遮光层13呈环形，且围绕于触控层12外；遮光层13包括呈标识图形的透光部131。
结合图8，本公开的触控面板，可利用显示基板2的第二显示区22或专门的光源向透光部131发光，透光部131发出的光线透过外壳的透光区41后，可在外壳4中显示标识图形，而不再采用固定的结构配合固定的涂装颜色来展示标识图形，可避免标识图形磨损，且可通过对发光颜色的控制，实时调整标识图形的颜色。同时，在关机状态下，可以不显示标识图形，减小能耗。
下面对本公开触控面板1的各部分进行详细说明：
如图1和图2所示，衬底11可为平板结构，其可采用单层或多层结构，且衬底11的材料可包括玻璃等硬质的材料，也可以包括聚酰亚胺等柔性的材料，在此不做特殊限定。同时，衬底11可包括触控区110和围绕于触控区110外的边缘区111，其中，触控区110和边缘区111只是根据所承载的膜层的功能进行的划分，可以没有可以被实际观察到的边界。
如图1和图2所示，触控层12可设于衬底11一侧，且位于触控区110，用于感应用户的触控操作，并根据触控操作确定触控区110，以便控制显示基板显示的画面，实现人机交互。触控层12可以采用自容式结构或互容式结构，当然，还可以是电阻式结构等，在此不做特殊限定，只要能实现触控功能即可。
在本公开的一些实施方式中，触控层12为互容式结构，具体而言，如图1所示，触控层12可包括多个第一触控电极121和多个第二触控电极122，其中：
各第一触控电极121可沿行方向延伸，且沿列方向间隔分布。多个第二触控电极122可沿列方向延伸，且沿行方向间隔分布。任一第二触控电极122均与各第一触控电极121交叉，且在交叉处绝缘设置。具体 而言：
为了防止第一触控电极121和第二触控电极122短接，触控层12可包括导电层、绝缘层和连接层，其中：
导电层设于衬底11的触控区110内，且包括多个第一触控电极121，第一触控电极121可沿行方向延伸，且沿列方向间隔分布。同时，导电层还可包括多个电极单元组，各电极单元组沿列方向延伸且沿行方向分布，每个电极单元组包括沿列方向分布的多个电极单元1222，相邻两第一触控电极121之间设有沿行方向分布的一排电极单元1222。行方向如图1中的X方向所示，列方向如图1中的Y方向所示。
绝缘层覆盖导电层，其为透明绝缘材质，且绝缘层背离衬底11的表面可为平面。
连接层设于绝缘层背离衬底11的表面。连接层可包括多个连接单元1221，在列方向上，相邻两电极单元1222通过一连接单元1221连接。任一第二触控电极122包括一列连接单元1221及其连接的电极单元1222。连接层的材料可为透明导电材料，例如ITO(氧化铟锡)等。
需要说明的是，第一触控电极121和第二触控电极122可以互换，即第一触控电极121也可沿列方向延伸，并沿行方向分布；第二触控电极122也可沿行方向延伸，并沿列方向分布。图1中仅为示例性说明，并不构成对第一触控电极121和第二触控电极122的方向和图案的具体限制。
如图1-图3所示，遮光层13与触控层12设于衬底11的同一侧，例如，二者可设于衬底11的同一表面。遮光层13可位于衬底11的边缘区111内，且围绕触控层12设置，即触控层12位于遮光层13围绕的范围内。遮光层13可采用光刻胶等树脂材料，且不透光，当然，遮光层13也可以采用其它材料，只要遮光即可。遮光层13的厚度不小于触控层12的厚度，在触控面板1与显示基板2对置时，遮光层13可与显示基板2贴合，起到支撑和粘合的作用。
遮光层13在衬底11上的正投影的形状可视衬底11的形状而定，若衬底11为矩形，则遮光层13在衬底11上的正投影的形状可为矩形，若衬底11为圆形，遮光层13在衬底11上的正投影的形状可为圆形。
如图1-图3所示，遮光层13可包括透光部131，透光部131位于遮光层13的局部区域，且其呈预先设定的标识图形，标识图形的具体造型在此不做特殊限定，可以是几何图形，也可以是文字等，用于展示产品的商标或其它标识图案。在有光线透过透光部131时，可显示出标识图形所展示的图案，若无光线透过透光部131，则不显示标识图形。
在本公开的一些实施方式中，如图1-图3所示，透光部131可包括阵列分布的多个透光孔1310，透光孔1310沿垂直于衬底11的方向贯穿遮光层13，从而可透过光线。通过透光孔1310的分布可形成特定的图案，即标识图形，每个透光孔1310为构成标识图形的基本元素。当然，透光部131也可以是连续的完全透光的区域。
透光部131的开口率满足如下公式：
T＝N×π×(D/2) 2/A；
T为开口率，N为透光部131中透光孔1310的数量，D为透光孔1310的直径，A为透光部131在衬底1上的正投影的面积
若开口率过大，则使遮光层13难以起到遮挡作用，因此，可使开口率不大于0.8，即透光部131中透光区域的面积不大于总面积的80％。
进一步的，为了既能够在存在光线时看到标识图形，又能在无光线时对显示基板2对应于遮光部131的区域起到一定的遮挡作用，需要对透光部131中透光孔1310的尺寸和密度进行一定的限定。
经过大量的试验和分析，如图3所示，申请人得出，透光孔1310的孔径D可为5μm-10μm，5μm、7μm、8μm和10μm等；相邻两透光孔1310的间距d为3μm-8μm，例如3μm、5μm、6μm和8μm等。进一步的，透光孔1310的孔径D可为5μm-10μm，相邻两透光孔1310的间距d为5μm-6μm。
需要说明的是，在本公开的实施方式中，若透光孔1310为圆孔，则其孔径为透光孔1310的直径；若透光孔1310为正多边形孔，则孔径为其外接圆的直径；若透光孔1310为其它形状，则孔径为透光孔1310边沿上距离最远的两点之间的距离。也就是说，不论透光孔1310为何形状，其孔径都不大于其边沿上距离最远的两点之间的距离。同时，相邻两透光孔1310的间距为该两个透光孔1310距离最近的点之间的距离。
进一步的，如图3所示，可使相邻透光孔1310的间距d小于任一透光孔1310的孔径D，即d＜D，避免因透光孔1310过于稀疏而无法显示清晰可变的标识图形。例如，相邻两透光孔1310的间距为5μm，透光孔1310的孔径为7μm。
本公开提供一种触控面板的制造方法，该触控面板可为上述任意实施方式的触控面板，如图4所示，该制造方法可包括步骤S110和步骤S120，其中：
步骤S110、在衬底一侧形成环形的遮光层；遮光层包括呈标识图形的透光部。
步骤S120、在衬底设置有遮光层的一侧形成触控层，触控层位于遮光层围绕的范围内。
在本公开的一些实施方式中，衬底可采用玻璃材质，例如，其可以是钢化的白玻璃，遮光层可采用黑色的光刻胶。在步骤S110中，可先对衬底进行清洗，再在衬底上刮涂一层黑色光刻胶。然后，将衬底及其上的黑色光刻胶投入曝光机内，采用掩膜版进行曝光，将掩膜版上的图形转印到黑色光刻胶上。再在显影液里进行显影，把遮光层及其透光部的标识图形的图案保留下来，得到具有透光部的遮光层。
本公开制造方法所制造的触控面板的细节已在上文触控面板的实施方式中进行了详细说明，在此不再赘述。
需要说明的是，尽管在附图中以特定顺序描述了本公开中制造方法的各个步骤，但是，这并非要求或者暗示必须按照该特定顺序来执行这些步骤，或是必须执行全部所示的步骤才能实现期望的结果。附加的或备选的，可以省略某些步骤，将多个步骤合并为一个步骤执行，以及/或者将一个步骤分解为多个步骤执行等。
在采用上述触控面板的触控显示面板中，透光部131需要配合光线才能显示出标识图形，因而，触控显示面板中需要设置用于向透光部131发光的光源，例如，可利用触控显示面板自身的发光器件作为光源，向透光部131发光，当然，也可采用独立的光源向透光部131发光。下面 进行详细说明：
本公开还提供一种触控显示面板，如图5和图6所示，其可包括触控面板1和显示基板2，其中：
触控面板1可以是上述任意实施方式的触控面板1，其结构可参考上文触控面板1的实施方式，在此不再赘述。
显示基板2设于遮光层13背离衬底11的一侧；显示基板2具有第一显示区21和位于第一显示区21外的第二显示区22，第一显示区21和第二显示区22均可朝向触控面板1发光。
进一步的，显示基板2具有围绕于第一显示区21外的外围区23，第二显示区22位于外围区23的范围内，也就是说，外围区23的局部区域可发光，该局部区域即为第二显示区22。第二显示区22与第一显示区21可以是间隔的两个可发光的区域，也可以是连续的区域，即第二显示22可以是第一显示区21延伸至外围区23内的部分。
第一显示区21在衬底11上的正投影位于遮光层13围绕的范围内，用于显示供用户观看的画面。第二显示区22在衬底11上的正投影与透光部131在衬底11上的正投影至少部分重合，第二显示区22发出的至少部分光线可通过透光部131，使透光部131显示标识图形。由此，可利用显示基板2本身的显示区，在显示图像的同时，第二显示区22作为光源，使透光部131显示标识图形。
在本公开的一些实施方式中，如图5和图6所示，显示基板2可以是有机电致发光显示面板，具体而言，显示基板2可包括驱动背板和发光器件层，其中：
驱动背板包括驱动电路，用于驱动发光器件发光。举例而言，驱动背板包括像素区和位于像素区外的外围电路区，像素区为驱动背板对应于第一显示区21和第二显示区22的区域，外围电路区为驱动背板对应于外围区23的区域。
驱动电路可包括像素电路和外围电路，像素电路的数量为多个，且位于像素区内，像素电路可以是7T1C、7T2C、6T1C或6T2C等像素电路，只要能驱动发光器件发光即可，在此不对其结构做特殊限定。像素电路的数量与发光器件的数量相同，且一一对应地与各发光器件连接， 以便分别控制各个发光器件发光。其中，nTmC表示一个像素电路包括n个晶体管(用字母“T”表示)和m个电容(用字母“C”表示)。
外围电路位于外围电路区，且与像素电路连接，用于向像素电路输入驱动信号，以便控制发光器件发光。外围电路可包括栅极驱动电路和发光控制电路，当然，还可包括其它电路，在此不对外围电路的具体结构做特殊限定。
需要说明的是，用于驱动第二显示区22的像素电路可位于第二显示区22的区域内，即位于外围区23内。或者，也可通过将对应于第一显示区21的部分像素电路进行压缩，形成可容纳驱动第二显示区22的像素电路的空间，并将驱动第二显示区22的像素电路设置在第一显示区21内。
驱动背板可由多个膜层形成，举例而言，驱动背板可包括基底和设于基底一侧的驱动层，其中，基底可为单层或多层结构，且其可以是硬质或柔性结构，在此不做特殊限定。上述的驱动电路可位于驱动层，以驱动电路中的晶体管为顶栅型薄膜晶体管为例，驱动层可包括有源层、第一栅绝缘层、栅极、第二栅绝缘层、层间介质层、第一源漏层、钝化层、第一平坦层、第二源漏层和第二平坦层，其中：
有源层设于基底上；第一栅绝缘层覆盖有源层；栅极设于第一栅绝缘层背离基底的表面，且与有源层正对设置；第二栅绝缘层覆盖栅极和第一栅绝缘层；层间介质层覆盖第二栅绝缘层；第一源漏层设于层间介质层背离基底的表面，且包括源极和漏极，源极和漏极连接于有源层；钝化层覆盖第一源漏层；第一平坦层覆盖钝化层；第二源漏层设于第一平坦层背离基底的表面，且与第一源漏层连接；第二平坦层覆盖第二源漏层和第一平坦层。
发光器件层设于驱动背板靠近触控面板1的一侧，且包括多个发光器件，发光器件可一一对应地与各像素电路连接，从而在驱动电路的驱动下发光。例如，发光器件可与第二源漏层连接，可在驱动电路的驱动下发光。以发光器件为有机电致发光器件为例，发光器件可包括沿背离驱动背板的方向依次层叠的第一电极、发光功能层和第二电极。发光功能层可包括沿背离驱动背板的方向依次层叠空穴注入层、空穴传输层、 发光材料层、电子传输层和电子注入层，可通过向第一电极和第二电极施加驱动信号，产生空穴和电子，并使空穴和电子在发光材料层复合成激子，由激子辐射光子，从而产生可见光，具体发光原理在此不再详述。
显示基板2可包括第一显示区21和第二显示区22，第一显示区21在衬底11上的正投影位于遮光层13围绕的范围内，第二显示区22位于第一显示区21以外，且第二显示区22的范围小于第一显示区21的范围。第二显示区22在衬底11上的正投影与透光部131在衬底11上的正投影至少部分重合。
第一显示区21和第二显示区22内均设有多个发光器件，第一显示区21内的发光器件可用于显示图像，第二显示区22内的发光器件可作为光源，向透光部131发光，以显示标识图形。
此外，该触控显示面板，还可包括封装层，其可覆盖显示基板2靠近触控面板1的表面，触控面板1设于封装层背离显示基板2的一侧。
在本公开的另一些实施方式中，如图5和图6所示，显示基板2可为液晶显示基板2，该显示基板2包括阵列基板、液晶层和彩膜基板，其中：
阵列基板和彩膜基板对盒设置，液晶层设于阵列基板和彩膜基板之间，该显示基板2还可包括像素电极和公共电极，像素电极和公共电极均可设于阵列基板和彩膜基板之间，用于向液晶层施加电场，调整液晶层的液晶的偏转方向，从而到达调整液晶层的透光程度的目的。彩膜基板包括多个滤光部，每个滤光部可透过一种颜色的光线，根据滤光部的颜色，可将滤光部分为至少三种，同种滤光部的颜色相同，不同种滤光部的颜色不同。
显示基板2可包括第一显示区21和第二显示区22，第一显示区21在衬底11上的正投影位于遮光层13围绕的范围内，第二显示区22位于第一显示区21以外，且第二显示区22的范围小于第一显示区21的范围。第二显示区22在衬底11上的正投影与透光部131在衬底11上的正投影至少部分重合。
第一显示区21和第二显示区22内均设有多个滤光部，使得第一显示区21和第二显示区22均可出光，从而可利用第一显示区21显示画面， 利用第二显示区22向透光部131发光，显示标识图形。
本公开还提供一种触控显示面板，如图7所示，其可包括触控面板1、显示基板2和发光件3，其中：
触控面板1可以是上述任意实施方式的触控面板1，其结构可参考上文触控面板1的实施方式，在此不再赘述。
显示基板2设于遮光层13背离衬底11的一侧；显示基板2具有显示区210以及围绕显示区210的外围区220，且显示区210在衬底11上的正投影位于遮光层13围绕的范围内，用于显示画面，外围区220在衬底1上的正投影至少部分位于遮光层13内。
发光件3可设于遮光层13和显示基板2之间，且与透光部131对应，即发光件3在衬底11上的正投影与透光部131至少部分重合，发光件3用于向透光部131发光，以显示标识图形。发光件3的结构在此不做特殊限定，只要能发光即可，例如，发光件3可为发光二极管。同时，发光件3的发光的颜色和数量也不做特殊限定。
本公开还提供一种显示装置，如图8所示，其可包括触控显示面板和外壳4，其中：
触控显示面板可以是上述任意实施方式的触控显示面板，其结构和工作原理可参考上文中触控面板1和触控显示面板的实施方式，在此不再赘述。
如图9所示，外壳4套设于触控显示面板外，且遮光层13位于外壳4内。外壳4可为遮光材质，但为了避免外壳4对透光部131造成遮挡，外壳4可具有透光区41，透光区41和透光部131在衬底11上的正投影至少部分重合，使得透光部131透过的光线可经透光区41传播至外壳4以外，确保用户能看到标识图形。
举例而言，如图8和图9所示，外壳4可包括边框，边框包覆于触控显示面板的边缘外，且遮光层13位于边框的范围内，透光区41可设于边框背离显示基板2的表面。
透光区41的实现方式有多种，举例而言，在本公开的一些实施方式 中，透光区41可开设与透光部131的各透光孔1310一一对应的开孔，从而可在透光区41形成标识图形。进一步的，为了避免外界的灰尘、水滴等由开孔进入外壳4内，可将开孔用透明材料填充，或者，利用透明的保护层覆盖透光区41。
在本公开的另一些实施方式中，透光区41还可采用与标识图形的形状和尺寸一致的透明材料，只要能看到标识图形即可。
本公开的显示装置可以是电视、笔记本电脑、平板电脑、手机等具有图像显示功能的电子设备，在此不再一一列举。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由所附的权利要求指出。

Claims (12)

  1. 一种触控面板，其中，包括：
    衬底；
    触控层，设于所述衬底一侧；
    遮光层，与所述触控层设于所述衬底的同一侧，所述遮光层呈环形，且围绕于所述触控层外；所述遮光层包括呈标识图形的透光部，所述透光部包括阵列分布的透光孔，所述透光部的开口率满足如下公式：
    T＝N×π×(D/2) 2/A；
    T为开口率，N为所述透光部中透光孔的数量，D为所述透光孔的直径，A为所述透光部在衬底上的正投影的面积。
  2. 根据权利要求1所述的触控面板，其中，所述开口率不大于0.8。
  3. 根据权利要求1所述的触控面板，其中，相邻所述透光孔的间距小于任一所述透光孔的孔径。
  4. 根据权利要求1所述的触控面板，其中，所述透光孔的孔径为5μm-10μm，相邻两所述透光孔的间距为3μm-8μm。
  5. 根据权利要求1所述的触控面板，其中，所述遮光层的材料包括光刻胶。
  6. 根据权利要求1所述的触控面板，其中，所述触控层包括：
    多个第一触控电极，沿行方向延伸，且沿列方向分布；
    多个第二触控电极，沿所述列方向延伸，且沿行方向分布；任一所述第二触控电极均与各所述第一触控电极交叉，且在交叉处绝缘设置。
  7. 一种触控面板的制造方法，其中，包括：
    在衬底一侧形成环形的遮光层；所述遮光层包括呈标识图形的透光部；所述透光部包括阵列分布的透光孔，所述透光部的开口率满足如下公式：
    T＝N×π×(D/2) 2/A；
    T为开口率，N为所述透光部中透光孔的数量，D为所述透光孔的直径，A为所述透光部在衬底上的正投影的面积；
    在所述衬底设置有所述遮光层的一侧形成触控层，所述触控层位于所述遮光层围绕的范围内。
  8. 一种触控显示面板，其中，包括：
    权利要求1-7任一项所述的触控面板；
    显示基板，设于所述遮光层背离所述衬底的一侧；所述显示基板具有第一显示区和位于所述第一显示区外的第二显示区；所述第一显示区在所述衬底上的正投影位于所述遮光层围绕的范围内；所述第二显示区在所述衬底上的正投影与所述透光部在所述衬底上的正投影至少部分重合。
  9. 根据权利要求8所述的触控显示面板，其中，所述显示基板包括：
    驱动背板；
    发光器件层，设于所述驱动背板靠近所述触控面板的一侧，且包括多个发光器件，所述第一显示区和所述第二显示区内均设有多个所述发光器件。
  10. 根据权利要求8所述的触控显示面板，其中，所述显示基板包括：
    阵列基板；
    液晶层，设于所述阵列基板靠近所述触控面板的一侧；
    彩膜基板，设于所述液晶层靠近所述触控面板的一侧；所述彩膜基板包括多个滤光部，所述第一显示区和所述第二显示区内均设有多个滤光部。
  11. 一种触控显示面板，其中，包括：
    权利要求1-7任一项所述的触控面板；
    显示基板，设于所述遮光层背离所述衬底的一侧；
    发光件，设于所述遮光层和所述显示基板之间，所述发光件用于向所述透光部发光。
  12. 一种显示装置，其中，包括：
    权利要求9-11任一项所述的触控显示面板；
    外壳，套设于所述触控显示面板外，且所述遮光层位于所述外壳内；所述外壳具有透光区，所述透光区和所述透光部在所述衬底上的正投影至少部分重合。
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