WO2015018146A1 - 显示面板及其制备方法、和显示装置 - Google Patents
显示面板及其制备方法、和显示装置 Download PDFInfo
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- WO2015018146A1 WO2015018146A1 PCT/CN2013/088437 CN2013088437W WO2015018146A1 WO 2015018146 A1 WO2015018146 A1 WO 2015018146A1 CN 2013088437 W CN2013088437 W CN 2013088437W WO 2015018146 A1 WO2015018146 A1 WO 2015018146A1
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- Prior art keywords
- substrate
- display
- sensing
- display panel
- display area
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
-
- 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
- G06—COMPUTING OR CALCULATING; 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
-
- 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
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133334—Electromagnetic shields
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
- Display panel preparation method thereof, and display device
- the present invention relates to the field of display technologies, and in particular, to a display panel, a method of manufacturing the display panel, and a display device. Background technique
- OLED organic electroluminescent diode
- LCD liquid crystal display devices
- a touch screen display panel has the following structure: A photosensitive sensor is added to the 0 LED display device, and the user's command is recognized by the light change detected by the photosensitive sensor, thereby realizing the touch function of the touch screen.
- the cost of the photosensitive sensor in this structure is high, which is not conducive to popular use.
- Another touch screen display panel has a structure in which a display structure is disposed on one side of the substrate, and a touch sensing structure is disposed on the other side of the substrate.
- the touch sensing structure is a sensing film layer formed of an indium tin oxide material. Since the inductive film layer formed by the indium tin oxide material is disposed on the surface of the display panel, and the indium tin oxide is used as a conductive material, the display panel is often subjected to different degrees of external electromagnetic interference, thereby causing the display performance of the display panel to be unstable; The sensing film layer disposed on the surface of the substrate is also easily damaged by bumping, which causes the touch function to be inoperable.
- the present invention provides a display for the above technical problems existing in the prior art.
- a panel, a method of preparing a display panel, and a display device The display panel makes the performance of the display panel with the touch function more stable by providing a stable substructure in the sensing structure.
- the manufacturing method realizes the thinning of the display panel at low cost.
- the present invention provides a display panel, the display panel is divided into a display area and a non-display area, and the display panel includes an upper substrate and a lower substrate that is combined with the upper substrate, and the lower substrate a control structure and a display structure are disposed in the display area, and a sensing structure is further disposed in the display area on the upper substrate and/or the lower substrate, and the sensing structure is disposed corresponding to the display structure, and the sensing A stable substructure is provided in the structure.
- the upper substrate comprises a second substrate
- the lower substrate comprises a first substrate
- the control structure is disposed above the first substrate
- the display structure is disposed above the control structure
- the sensing structure includes a first sensing structure, the first sensing structure is disposed in the lower substrate, on a side of the first substrate away from the display structure; or, the first sensing structure Provided in the upper substrate, on a side of the second substrate near the display structure or a side of the second substrate away from the display structure; or, the sensing structure includes a first a sensing structure and a second sensing structure, wherein the first sensing structure and the second sensing structure are both disposed in the upper substrate, and the first sensing structure is located on the second substrate adjacent to the display structure On one side, the second sensing structure is located on a side of the second substrate that is away from the display structure; or the sensing structure includes a first sensing structure and a second sensing structure, and the first sensing structure is configured And disposed on the upper substrate, on a side of the
- control structure is a thin film transistor layer
- display structure is an organic electroluminescent layer or a liquid crystal layer.
- the first sensing structure and the second sensing structure comprise: a sensing film layer and a stabilizing substructure disposed in sequence in a direction away from the first substrate or the second substrate,
- the sensing film layer is formed by using a carbon nanotube or an indium tin oxide material
- the stabilizing substructure is a protective layer formed of an organic material
- the first sensing structure and the second sensing structure include: away from the The side of the first substrate or the second substrate
- Two split sensing film layers and the stabilizing substructure are disposed in the upper direction, and an insulating layer is further disposed between the two split sensing film layers, and the two split sensing film layers respectively adopt carbon nanotubes and Forming an indium tin oxide material, or respectively forming a carbon nanotube and a graphene material
- the stabilizer structure is a protective layer formed of an organic material
- the insulating layer is used to insulate the two split sensing layers from each other The insulating material is formed.
- an upper polarizer is disposed on a side of the upper substrate away from the display structure, and/or a lower polarizer is disposed on a side of the lower substrate away from the display structure.
- the display panel further includes a peripheral circuit, wherein a display area of the upper substrate and a display area of the lower substrate are the same size, and a non-display area of the upper substrate and a non-display area of the lower substrate The size is also the same, and the non-display area is disposed only on one side of the display area, and the upper substrate and the lower substrate are dislocated so that the display area of the upper substrate and the display area of the lower substrate are in the front projection direction.
- a peripheral circuit wherein a display area of the upper substrate and a display area of the lower substrate are the same size, and a non-display area of the upper substrate and a non-display area of the lower substrate The size is also the same, and the non-display area is disposed only on one side of the display area, and the upper substrate and the lower substrate are dislocated so that the display area of the upper substrate and the display area of the lower substrate are in the front projection direction.
- the non-display area of the upper substrate and the non-display area of the lower substrate are exposed on opposite sides, and the peripheral circuit is disposed in the exposed non-display area; or the length of the lower substrate And/or a width greater than a length and/or a width of the upper substrate such that a non-display area of the lower substrate is exposed, and the peripheral circuit is disposed in an exposed non-display area of the lower substrate.
- the first substrate and the second substrate are formed of a transparent glass material, and the first substrate and/or the second substrate are thinned by a chemical thinning process,
- the thickness of the first substrate and the second substrate is 0. 1 -0. 3 mm o
- the organic electroluminescent layer comprises at least an anode layer, a light-emitting layer and a cathode layer; and the liquid crystal layer is formed by filling a gap formed by a gap formed by the upper substrate and the lower substrate.
- the present invention also provides a display device comprising the above display panel.
- the present invention also provides a method for preparing a display panel, the display panel is divided into a display area and a non-display area, the preparation method includes: a step of respectively forming an upper substrate and a lower substrate; and the upper substrate and the lower a step of forming a pair of substrates to form a display panel, wherein a control structure and a display structure are formed in the display area on the lower substrate, and an inductive structure is further formed in the display area on the upper substrate or the lower substrate
- the sensing structure is disposed corresponding to the display structure, and a stable substructure is formed in the sensing structure.
- the step of forming the lower substrate specifically includes: preparing a first substrate; and forming a pattern including a control structure on the first substrate; or further comprising: after forming the pattern including the control structure: A pattern including an inductive structure is formed on a side of the first substrate remote from the control structure.
- the step of forming the upper substrate specifically comprises: preparing a second substrate, or further comprising the step of: forming a pattern comprising an inductive structure on one or both sides of the prepared second substrate.
- the step of forming the display panel comprises: coating a frame material on an edge region of the non-display area of the lower substrate or the upper substrate; after coating the frame material, the upper substrate and the a lower substrate is attached; a polarizer is attached to an outer side of the upper substrate and/or the lower substrate; and a peripheral circuit is attached to the exposed non-display area of the upper substrate and/or the lower substrate .
- control structure is a thin film transistor layer
- display structure is an organic electroluminescent layer.
- the method further includes: using an evaporation method, in a vacuum evaporation environment, in the Forming the organic electroluminescent layer above the control structure; or the display structure is a liquid crystal layer, further comprising: after coating the encapsulation material and before aligning the upper substrate with the lower substrate Liquid crystal is dripped into the display area of the upper substrate or the lower substrate.
- the step of forming the display panel further comprises: after the upper substrate and the lower substrate are combined, and the sensing structure is formed on a side of the first substrate remote from the display structure and/or Or the sensing structure is formed on a side of the first substrate away from the display structure and/or the upper substrate before the side of the second substrate remote from the display structure
- the step of thinning the side of the second substrate away from the display structure specifically includes: coating a non-display area between the upper substrate and the lower substrate with a protective material;
- the protective material is a thermosetting material or a photocurable material; a side of the first substrate in the lower substrate away from the display structure and/or a second substrate in the upper substrate by a chemical thinning process Thinning away from one side of the display structure; and removing the protective material.
- the sensing structure comprises: a sensing film layer and a stabilizing substructure disposed in a direction away from the first substrate or the second substrate, wherein the stabilizing substructure is a protective layer formed of an organic material
- the forming step of the sensing structure comprises: forming a pattern including a sensing film layer by using a carbon nanotube, or forming a pattern including the sensing film by using a pattern of indium tin oxide; a pattern of the layer; and coating the organic material on the sensing film layer to form the protective layer; or the sensing structure comprises: sequentially disposed in a direction away from the first substrate or the second substrate Two split-sensing film layers and a stabilizing substructure, wherein the stabilizing substructure is a protective layer formed of an organic material, and an insulating layer is further disposed between the two split sensing film layers, and the sensing structure is formed
- the method includes: forming a pattern including a first split sensing film layer by a patterning process using an indium tin oxide
- the prebaking step is further included before the pattern including the second split sensing film layer is formed, the prebaking temperature ranges from 60 ° C to 90 ° C, and the prebaking time ranges from 2-3 minutes; and / Or a post-baking step is further included after forming the pattern including the second split-sensing film layer, the post-baking temperature ranges from 80 ° C to 120 ° C, and the post-baking time ranges from 15 to 30 minutes.
- Advantageous Effects of Invention The display panel provided by the present invention protects the display panel from internal or external electromagnetic interference by protecting the sensing layer in the sensing structure, thereby protecting the sensing layer from damage caused by bumps. The performance of the display panel with touch function is more stable.
- the display panel of the present invention is low in cost and promotes the development of the display panel in the direction of low cost and thinness.
- Figure 1 is a cross-sectional view of a display panel according to Embodiment 1 of the present invention.
- Figure 2 is a cross-sectional view showing an inductive structure according to Embodiment 1 of the present invention.
- 3A to 3H are flowcharts showing a method of manufacturing a display panel according to Embodiment 1 of the present invention.
- 3A is a cross-sectional view of the first substrate.
- Fig. 3B is a cross-sectional view showing the formation of a control structure on the first substrate.
- Figure 3C is a cross-sectional view showing the formation of a display structure on a control structure.
- Figure 3D is a cross-sectional view of the second substrate.
- Figure 3E is a cross-sectional view showing the formation of an inductive structure on a second substrate.
- Fig. 3F is a cross-sectional view of the upper substrate and the lower substrate being joined.
- Fig. 3G is a cross-sectional view showing the upper substrate and the lower substrate being joined and the first and second substrates being thinned.
- Fig. 3H is a cross-sectional view of the attached polarizer.
- Figure 4 is a cross-sectional view of a display panel in accordance with Embodiment 2 of the present invention.
- Figure 5 is a cross-sectional view of a display panel in accordance with Embodiment 3 of the present invention.
- Figure 6 is a cross-sectional view of a display panel in accordance with Embodiment 4 of the present invention.
- Figure 7 is a cross-sectional view of a display panel in accordance with Embodiment 5 of the present invention.
- Figure 8 is a cross-sectional view of a display panel in accordance with Embodiment 6 of the present invention.
- Figure 9 is a cross-sectional view showing an induction structure of a display panel according to Embodiment 7 of the present invention.
- Figure 10 is a cross-sectional view of a display panel in accordance with Embodiment 8 of the present invention.
- Example 1 The embodiment provides a display panel, which is divided into a display area and a non-display area, and the display panel includes an upper substrate and a lower substrate that are combined together, and a control structure and a display are disposed in the display area on the lower substrate.
- an inductive structure is disposed in the display area on the upper substrate
- the sensing structure is disposed corresponding to the display structure
- the stabilizing substructure is disposed in the sensing structure.
- Fig. 1 shows a cross-sectional view of a display panel of this embodiment.
- the lower substrate of the display panel includes a first substrate 1, a control structure 3, and a display structure 4 which are sequentially stacked.
- the upper substrate of the display panel includes a second substrate 2 and a first sensing structure 51 which are sequentially stacked.
- the display panel further includes a sealing material 7, which is disposed at the periphery of the display structure 4 to connect the control structure 3 with the first sensing structure
- the bonding is performed, and the display structure 4 is sealed between the control structure 3, the first sensing structure 51, and the frame material 7, so that the lower substrate and the upper substrate are bonded to each other.
- a laminated structure of the first substrate 1, the control structure 3, the display structure 4 and the frame material 7, the first sensing structure 51, and the second substrate 2 is formed in order from the bottom to the top.
- the side of the second substrate 2 in the upper substrate remote from the display structure 4 is further provided with an upper polarizer 61 for improving contrast, and the upper polarizer 61 is preferably a circular polarizer.
- control structure 3 is a thin film transistor layer
- display structure 4 is an organic electroluminescent layer.
- the organic electroluminescent layer comprises at least an anode layer, a light-emitting layer and a cathode layer.
- the first sensing structure 51 is one example of the sensing structure of the present invention. As shown in FIG. 2, the first sensing structure 51 includes a sensing film layer 511 and a stabilizing substructure 512 which are sequentially disposed in a direction away from the second substrate 2. That is to say, in the display panel of the present invention, a stable substructure is provided for the sensing film layer, thereby contributing to the stability of the sensing film layer.
- the stabilizing substructure and the sensing film layer may have substantially the same size, that is, the stabilizing substructure may substantially cover the entire surface of the sensing film layer.
- the stabilizing substructure may be formed as a protective layer sandwiching the sensing film layer between the stabilizing substructure and the second substrate such that the sensing film layer is not susceptible to damage.
- the stabilizing substructure 512 can be formed of any suitable material capable of protecting the sensing film layer.
- the stabilizing substructure 512 may be formed of a material that is resistant to electromagnetic interference, such as an organic material. Stabilizing substructure formed using organic materials The 512 can protect the display panel from internal or external electromagnetic interference on the one hand, thereby ensuring stable performance of the display panel; on the other hand, the stable substructure 512 is durable and can well protect the sensing film layer 511 and the sensing film layer. 511 is not easily damaged by bumps.
- the sensing film layer 511 can be formed using carbon nanotubes or indium tin oxide materials.
- the first substrate 1 and the second substrate 2 may be formed using a transparent glass material. 1-0.
- the thickness of the first substrate 1 and the second substrate 2 is 0. 1-0. 3 mmo In this way, the overall thickness increased due to the addition of the stabilizing substructure 512 is reduced, making the display panel lighter and thinner, both aesthetically pleasing and portable.
- the display panel also includes peripheral circuitry (not shown in Figure 1).
- peripheral circuitry (not shown in Figure 1).
- the upper substrate and the lower substrate are dislocated, and the peripheral circuit is disposed in the non-display area exposed by the misalignment.
- the setting of the peripheral circuit is more flexible and convenient, and the non-display area of the display panel can be further reduced, which is advantageous for the development of the display panel in the direction of lightness and miniaturization.
- the display areas of the upper and lower substrates of the display panel are the same size, the size of the non-display area is also the same, and the non-display area is disposed only on one side of the display area.
- the display areas of the upper substrate and the lower substrate are correspondingly disposed in the right projection direction such that the non-display area of the upper substrate and the non-display area of the lower substrate are disposed on opposite sides.
- the display areas can correspond to each other, and the non-display area in the upper substrate and the non-display area in the lower substrate are exposed due to misalignment, thereby making the setting of the peripheral circuit in the non-display area more convenient.
- the embodiment further provides a method for preparing the above display panel.
- the preparation method includes: a step of respectively forming an upper substrate and a lower substrate; and a step of combining the upper substrate and the lower substrate to form a display panel, wherein a control structure and a display structure are formed in the display area on the lower substrate, An inductive structure is formed in the display area on the upper substrate, and the sensing structure is disposed corresponding to the display structure, and a stable substructure is formed in the sensing structure.
- the specific preparation process of the display panel of this embodiment is as shown in Figs. 3A to 3H.
- a lower substrate is prepared.
- the step of forming the lower substrate specifically includes the following steps S10-S1 l o
- Step S10 Preparing the first substrate 1 (as shown in FIG. 3A).
- Step S11 A pattern including the control structure 3 is formed on the first substrate 1 (as shown in FIG. 3B).
- the control structure 3 is a thin film transistor layer.
- the step S1 1 further includes the step of forming the display structure 4 above the control structure 3 (as shown in Fig. 3C).
- display structure 4 is an organic electroluminescent layer.
- the display structure 4 can be formed in a vacuum evaporation environment by evaporation.
- the lower substrate is prepared.
- the step of forming the upper substrate specifically includes the following steps S20-S21.
- Step S20 Prepare the second substrate 2 (as shown in FIG. 3D).
- Step S21 forming a pattern including the sensing structure (i.e., the first sensing structure 51) on one side of the second substrate 2 (as shown in Fig. 3E).
- the sensing structure is formed on a side of the second substrate 2 adjacent to the display structure 4 when the upper substrate and the lower substrate are opposed.
- the sensing structure comprises a sensing film layer and a stabilizing substructure arranged in sequence away from the second substrate 2.
- the stabilizing substructure is a protective layer formed using an organic material.
- the step of forming the sensing structure may specifically include the following steps S50-S51.
- Step S50 forming a pattern including the sensing film layer.
- the pattern of the sensing film layer can be formed by a drawing process using carbon nanotubes.
- an indium tin oxide material may be used to form a pattern including the sensing film layer by a patterning process.
- Step S51 forming a stable substructure as a protective layer on the sensing film layer.
- the stabilizing substructure can be formed by a coating process using an organic material.
- the stabilizing substructure not only protects the display panel from internal or external electromagnetic interference, but also protects the sensing layer from bump damage.
- the upper substrate is also prepared.
- the setting of the stabilizing substructure causes the thickness of the display panel to be increased. Therefore, after the subsequent upper substrate and lower substrate joining steps are completed, the steps of thinning the first substrate and the second substrate may be performed to reduce the overall thickness of the display panel.
- the order of preparation of the upper substrate and the lower substrate is not limited, and the lower substrate may be prepared first to prepare the upper substrate, or the upper substrate may be prepared first to prepare the lower substrate, or the upper substrate and the lower substrate may be simultaneously prepared, in practice.
- the production process can be flexibly arranged according to equipment conditions or process conditions.
- the upper base may be Both the board and the lower substrate have been prepared, and the upper substrate and/or the lower substrate may be partially prepared (this is mainly because the setting position of the rear sensing structure is different from the setting position of the sensing structure of the embodiment). For the purposes of the example).
- the merging step specifically includes the following steps S3-S31.
- Step S30 coating the frame material 7 on the edge region of the non-display area of the lower substrate.
- the sealing material 7 may be a low-melting glass frit paste having a melting temperature ranging from 60 °C to 80 °C.
- Step S31 After step S30, the upper substrate and the lower substrate are aligned (as shown in FIG. 3F). The upper substrate and the lower substrate are bonded together by the sealing material 7.
- the side of the first substrate 1 away from the display structure 4 and the side of the second substrate 2 away from the display structure 4 in the upper substrate may be thinned.
- the step (as shown in FIG. 3G is a thinned cross-sectional view), and the step of thinning specifically includes the following steps S40-S42.
- Step S40 coating a protective material on the non-display area between the upper substrate and the lower substrate.
- the protective material may be a heat curing material or a photocurable material, which can prevent the internal structure of the display panel, such as the display structure, the control structure and the sensing structure, and the dislocation of the upper substrate and the lower substrate during the chemical thinning process. The corrosion of the exposed non-display area is damaged.
- Step S41 thinning the side of the first substrate 1 away from the display structure 4 and the side of the second substrate 2 away from the display structure 4 in the upper substrate in the lower substrate.
- the above thinning can be performed by a chemical thinning process.
- chemical thinning There are two main ways of chemical thinning: one method is to immerse the upper and lower substrates in the mixed acid solution, and the mixed acid solution chemically thins the first substrate 1 and the second substrate 2 by controlling the time of soaking. And the temperature is such that the first substrate 1 and the second substrate 2 are respectively thinned to a thickness range of 0.1 to 0.3 mm; and the other method is to spray the mixed acid solution on the upper and lower substrates. The thickness of the thickness of the range of 0. 1-0. 3 mm is reduced by the thickness of the thickness of the first substrate 1 and the second substrate 2, respectively.
- the first substrate and the second substrate are performed by a chemical thinning process. Thinning. Since the chemical thinning process is relatively mature and low in cost, it is easy to control the thinned thickness of the first substrate and the second substrate, and at the same time, the thickness of the display panel can be reduced at low cost.
- Step S42 removing the protective material.
- Step S32 attaching a polarizer (ie, the upper polarizer 61) to the outer side of the upper substrate (as shown in FIG. 3H).
- a polarizer ie, the upper polarizer 61
- Step S33 A peripheral circuit is attached to the upper substrate and the lower substrate of step S32. According to the structure of the display panel of the present embodiment, the peripheral circuit is attached to the non-display area exposed on the upper substrate and the lower substrate due to the misalignment.
- Example 2
- the present embodiment provides a display panel.
- the display panel of the present embodiment is different from the first embodiment.
- the first sensing structure 51 is located on the side of the second substrate 2 away from the display structure 4. .
- the embodiment further provides a method for fabricating the above display panel.
- the sensing structure ie, the first sensing
- the second substrate 2 is first joined to the lower substrate, and then the first substrate and the second substrate are thinned by a chemical thinning process. After the protective material is removed, an inductive structure is formed on the side of the second substrate 2 remote from the display structure 4. Then, a polarizer (i.e., upper polarizer 61) is attached to the sensing structure.
- the present embodiment provides a display panel, which is different from the first embodiment and the second embodiment.
- the first sensing structure 51 is disposed in the lower substrate, and is located on the first substrate 1. Aside from the side of the display structure 4.
- This embodiment further provides a method for fabricating the above display panel.
- the control structure 3 is formed in the preparation step of the lower substrate.
- the method further includes the step S12: forming a pattern including the sensing structure (i.e., the first sensing structure 51) on a side of the first substrate 1 remote from the control structure 3. Accordingly, the step S21 of forming the sensing structure is not included in the preparation step of the upper substrate of the present embodiment.
- the sensing structure is formed after the upper substrate and the lower substrate are combined, and the upper substrate and the lower substrate are aligned before the lower substrate is prepared. Specifically, when the control structure 3 and the display structure 4 have been formed in the lower substrate but the sensing structure has not been formed, the upper substrate is combined with the unfinished lower substrate, and then the first substrate and the second substrate are thinned by a chemical thinning process. Substrate. In this state, an inductive structure is formed on the side of the first substrate 1 remote from the control structure 3.
- Example 4 Other structures, materials, and preparation methods of the display panel of this embodiment are the same as those of the embodiment 1-2, and are not described herein again.
- Example 4
- the present embodiment provides a display panel, which is different from any one of Embodiments 1 to 3.
- the sensing structure includes a first sensing structure 51 and a second sensing structure. 52.
- the first sensing structure 51 and the second sensing structure 52 are both disposed in the upper substrate, and the first sensing structure 51 is located adjacent to the display structure of the second substrate 2.
- the second sensing structure 52 is located on a side of the second substrate 2 remote from the display structure 4.
- the second sensing structure 52 has the same structure as the first sensing structure 51.
- the display panel of the embodiment has two sensing structures, which can make the touch of the display panel more sensitive, the touch time is shorter, and can achieve multi-touch, thereby improving the touch efficiency and diversification of the display panel. control.
- the present embodiment further provides a method for fabricating the above display panel, which is different from the preparation methods in any of the first to third embodiments.
- the upper substrate and the lower substrate in the embodiment 1 are respectively On the basis of preparation (wherein the first sensing structure 51 is formed on the side of the second substrate 2 close to the display structure 4), and the first substrate and the lower substrate are combined to reduce the first substrate by a chemical thinning process And after the second substrate, and then in the second The side of the substrate 2 remote from the display structure 4 forms another inductive structure, the second inductive structure 52. Subsequently, an upper polarizer 61 is formed on the second sensing structure 52.
- Example 5 is the same as those of the first embodiment, and are not described herein again.
- Example 5 is the same as those of the first embodiment, and are not described herein again.
- the present embodiment provides a display panel.
- the display panel of the present embodiment is different from the fourth embodiment.
- the first sensing structure 51 is disposed in the upper substrate and disposed on the second substrate 2 . Close to the side of the display structure 4.
- the second sensing structure 52 is disposed in the lower substrate and disposed on a side of the first substrate 1 away from the display structure 4.
- the embodiment further provides a method for preparing the above display panel.
- the preparation method of the embodiment 4 is different from the preparation method of the embodiment 4, wherein the upper substrate and the lower substrate in the first embodiment are respectively prepared.
- Upper wherein the first sensing structure 51 is formed on a side of the second substrate 2 close to the display structure 4
- the first substrate and the second substrate are thinned in the upper substrate and the lower substrate pair by a chemical thinning process
- another sensing structure that is, the second sensing structure 52, is formed on the side of the first substrate 1 remote from the display structure 4.
- Example 6 is the same as those in Embodiment 4, and are not described herein again.
- Example 6 is the same as those in Embodiment 4, and are not described herein again.
- the present embodiment provides a display panel, which is different from the embodiment 5.
- the first sensing structure 51 is disposed in the upper substrate and disposed on the second substrate 2 .
- the second sensing structure 52 is disposed in the lower substrate and disposed on a side of the first substrate 1 away from the display structure 4 .
- the present embodiment further provides a method for fabricating the above display panel, which is different from the preparation method of any one of embodiments 4 to 5, in which the first sensing structure 51 is formed on the second substrate.
- the side of the second substrate 2 and the second sensing structure 52 are formed on the side of the first substrate 1 away from the display structure 4, and the partially prepared upper substrate is first formed (ie, the first substrate is not formed first)
- a first sensing structure 51 is formed on one side of the fourth substrate 4, and a second sensing structure 52 is formed on a side of the first substrate 1 away from the display structure 4.
- an upper polarizer 61 is formed on the first sensing structure 51.
- Example 7 Other structures, materials, and preparation methods of the display panel of this embodiment are the same as those of the embodiment 4-5, and are not described herein again.
- Example 7
- the present embodiment provides a display panel, which is different from the first to sixth embodiments.
- the first sensing structure and the second sensing structure include: Two split sensing film layers (ie, the first split sensing film layer 513 and the second split sensing film layer 514) and the stabilizing structure are sequentially disposed in the direction of the second substrate 2 (not shown in FIG. 9) or the second substrate 2. 512.
- An insulating layer 515 is also disposed between the two split sensing layers.
- the two split sensing layers can be made of carbon nanotubes and indium tin oxide, respectively, or made of carbon nanotubes and graphene, respectively.
- the stabilizing substructure 512 can be a protective layer formed of an organic material.
- the insulating layer 515 may be formed of an insulating material that enables the two separate sensing film layers to be insulated from each other.
- the two split sensing layers are arranged in the sensing structure to make the sensing structure more sensitive when touched, and improve the touch efficiency of the display panel.
- the preparation process of the sensing structure is also different from the preparation process of the sensing structures in Embodiments 1 to 6.
- the step of forming the sensing structure may include the following steps S50 '-S53'.
- Step S50' A pattern including the first split sensing film layer 513 is formed by a patterning process using indium tin oxide material or graphene.
- Step S51' forming an insulating layer by coating on the first split sensing film layer 513
- Step S52' A pattern including the second split sensing film layer 514 is formed over the insulating layer 515 by a drawing process using a carbon nanotube material.
- a post-baking step is performed, and the post-baking temperature ranges from 80 ° C to 12 (TC, and the post-baking time ranges from 15 to 30 minutes.
- the post-baking can reduce the moisture in the second split-sensing film layer 514. Conducive to the curing of the second split sensing layer 514 or even the entire sensing structure.
- Step S53' A protective layer is formed on the second split sensing film layer 514 by coating an organic material.
- both the pre-baking step and the post-baking step are set; however, according to the actual preparation process, the pre-baking step and the post-baking step may not be provided, or pre-baking may be performed.
- the baking step and the post-baking step are performed one by one.
- Example 8 is the same as those of any of Embodiments 1 to 6, and are not described herein again.
- Example 8 is the same as those of any of Embodiments 1 to 6, and are not described herein again.
- the present embodiment provides a display panel.
- the length and width of the lower substrate are larger than the length and width of the upper substrate, so that the upper substrate After the lower substrate is aligned, the non-display area of the lower substrate is exposed, and a peripheral circuit (not shown in FIG. 10) is disposed in the exposed non-display area of the lower substrate.
- the length or width of the lower substrate may be greater than the length or width of the upper substrate; or the length and/or width of the upper substrate may be greater than the length and/or width of the lower substrate, and for the latter, the peripheral circuit is disposed on The exposed non-display area of the upper substrate.
- the present embodiment provides a display panel.
- the display panel of the present embodiment is a liquid crystal layer disposed above a control structure (eg, a thin film transistor layer).
- the liquid crystal layer is formed by filling a gap formed by a gap between the upper substrate and the lower substrate.
- an upper polarizer is disposed on a side of the upper substrate away from the display structure, and a lower polarizer is disposed on a side of the lower substrate away from the display structure, the upper polarizer
- the lower polarizer and the lower polarizer are linear polarizers, and the polarization directions of the upper polarizer and the lower polarizer are perpendicular to each other.
- a pattern including the control structure is formed on the first substrate; then, the non-display on the lower substrate The edge region of the region is coated with a frame material, and then, the liquid crystal is dripped in the display region of the lower substrate.
- the display panel of the present invention provides a display panel with a touch function by providing a stable substructure in the sensing structure, so that the display panel is protected from internal or external electromagnetic interference, and the sensing film layer in the sensing structure is protected from bump damage. The performance is more stable. Further, since the substrate of the upper and lower substrates in the display panel is thinned by the chemical thinning process, the thickness of the display panel can be reduced.
- the display panel of the present invention is low in cost and promotes the development of the display panel in the direction of low cost and thinness.
- the embodiment provides a display device comprising the display panel of any one of embodiments 1 to 9.
- the display device makes the performance of the display device with the touch function more stable by adopting an inductive structure provided with a stable substructure.
- the display device may be: a liquid crystal panel, an electronic paper, an OLED panel, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like, or any display product or component.
- a liquid crystal panel an electronic paper
- OLED panel an organic light-emitting diode
- a mobile phone a tablet computer
- television a display
- a notebook computer a digital photo frame
- navigator and the like
- any display product or component any display product or component.
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- General Engineering & Computer Science (AREA)
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Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/397,545 US9690405B2 (en) | 2013-08-07 | 2013-12-03 | Display panel and manufacturing method thereof, and display device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310346410.7 | 2013-08-07 | ||
| CN201310346410.7A CN103440067B (zh) | 2013-08-07 | 2013-08-07 | 一种显示面板、制备方法及显示装置 |
Publications (1)
| Publication Number | Publication Date |
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| WO2015018146A1 true WO2015018146A1 (zh) | 2015-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2013/088437 Ceased WO2015018146A1 (zh) | 2013-08-07 | 2013-12-03 | 显示面板及其制备方法、和显示装置 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US9690405B2 (zh) |
| CN (1) | CN103440067B (zh) |
| WO (1) | WO2015018146A1 (zh) |
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|---|---|---|---|---|
| CN104714321A (zh) * | 2013-12-17 | 2015-06-17 | 冠捷投资有限公司 | 触控显示器 |
| CN107577101B (zh) * | 2017-08-21 | 2021-01-15 | 武汉天马微电子有限公司 | 电泳显示面板及电泳显示面板制作方法 |
| CN113066816B (zh) | 2020-01-02 | 2022-08-09 | 京东方科技集团股份有限公司 | 显示模组、显示面板的减薄方法、显示面板及显示装置 |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20150301666A1 (en) | 2015-10-22 |
| US9690405B2 (en) | 2017-06-27 |
| CN103440067B (zh) | 2016-06-29 |
| CN103440067A (zh) | 2013-12-11 |
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