JP2019095561A - Manufacturing method for display device and display device - Google Patents

Abstract

To provide a manufacturing method of a display device for preventing a failure caused by electrical charge deviated to a protective film in the case of peeling a temporary film, and to provide a display device.SOLUTION: A manufacturing method of a display device includes: a process of providing a display panel 10 having a display region; a process of providing a conductive film 20 above the display panel such that at least a part of the display region is covered; a process of providing a protective film 30 (first protective film) and a temporary film 31 (second protective film) on the protective film above the conductive film; a process of providing a conductive part 41 different from the conductive film on the display panel; a process of providing a conductive paste 40 for conducting the conductive film and the conductive part in at least a part of an end surface of the display panel; and a process of peeling the temporary film from a side opposite to the end surface in an end surface direction.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a method of manufacturing a display device and a display device.

  2. Description of the Related Art Conventionally, in the process of manufacturing a display device, a process is disclosed in which a protective film is attached to the display surface side to protect or reinforce the display panel and then peeled off.

JP 2007-87807 A

  However, when peeling a protective film from a display panel, electric charge will be unevenly distributed by the said protective film side by peeling. Therefore, the transfer of the charge to a TFT (Thin Film Transistor: thin film transistor) or a circuit may cause destruction of the TFT or the circuit.

  The present invention has been made in view of the above problems, and its object is to provide a protective film (also referred to as a first protective film) provided on the display surface side for protecting and reinforcing a display panel. A method of manufacturing a display device and a display device for preventing a failure due to destruction of a TFT or a circuit due to an electric charge unevenly distributed to the protective film when peeling the temporary film among the temporary films (also referred to as second protective films) for protection I will provide a.

  A method of manufacturing a display device according to the present invention comprises the steps of: providing a display panel having a display area; providing a conductive film above the display panel so as to cover at least a part of the display area; Providing a protective film (first protective film) and a temporary film (second protective film) on the protective film above, a step of providing a conductive portion different from the conductive film on the display panel, and the display Providing a conductive resin material for electrically connecting the conductive film and the conductive portion to a part of the end face of the panel; and peeling the temporary film in the direction of the end face from the side opposite to the end face Have.

  The method of manufacturing a display device of the present invention may further include the step of providing the conductive portion on the temporary film.

  The method of manufacturing a display device of the present invention may further include the step of providing the conductive portion on a substrate on which the display panel is provided.

  In the step of providing the conductive resin material, a conductive resin material may be further provided to electrically connect the conductive film and the cathode.

  In the step of providing the conductive resin material, a conductive resin material may be further provided to electrically connect the conductive film and the optical adjustment layer made of the conductive material.

  A display device according to the present invention includes a display panel having a display area, a conductive film covering at least a part of the display area provided above the display panel, and a protective film provided above the conductive film. And a conductive resin material provided to cover at least a part of the conductive film and the side surface of the protective film.

  A display device according to the present invention includes a display panel having a display area, a conductive film covering at least a part of the display area provided above the display panel, and a protective film provided above the conductive film. A conductive portion provided on a substrate of the display panel, and a conductive resin material provided in the display panel and electrically connecting the conductive portion and the conductive film.

FIG. 1 is a plan view schematically showing a display device 1 according to a first embodiment of the present invention. It is a vertical sectional view in the position along the AA line of Drawing 1 in display 1 concerning a 1st embodiment which shows the process of providing display panel 10. As shown in FIG. It is a vertical sectional view in the position along the AA line of Drawing 1 in display 1 concerning a 1st embodiment which shows the process of providing conductive film 20. It is a perpendicular | vertical sectional view in the position along the AA line in FIG. 1 in the display apparatus 1 which concerns on 1st Embodiment which shows the process of providing the protective film 30 and the temporary film 31. FIG. It is a vertical sectional view in the position along the AA line in Drawing 1 in display 1 concerning a 1st embodiment which shows the process of providing conductive paste 40 and conductive part 41. It is a vertical sectional view in the position along the AA line in Drawing 1 in display 1 concerning a 1st embodiment which exfoliated temporary film 31. It is a vertical sectional view in the position along the AA line in Drawing 1 in display 1 concerning modification 1 which shows the process of providing conductive paste 40 and conductive part 41. It is a perpendicular | vertical sectional view in the position along the AA line of FIG. 1 in the display apparatus 1 which concerns on the modification 1 which peeled the temporary film 31. FIG. FIG. 7 is a vertical cross-sectional view at a position along the line A-A in FIG. 1 in a display device 1 according to a modification 2 showing a process of providing the conductive paste 40 and the conductive portion 41. It is a perpendicular | vertical sectional view in the position along the AA line of FIG. 1 in the display apparatus 1 which concerns on the modification 2 which peeled the temporary film 31. FIG. It is a vertical sectional view in the position along the AA line in Drawing 1 in display 1 concerning modification 3 which shows the process of providing conductive paste 40 and conductive part 41. It is a perpendicular | vertical sectional view in the position along the AA line of FIG. 1 in the display apparatus 1 which concerns on the modification 3 which peeled the temporary film 31. FIG. It is a top view which shows roughly the display apparatus 1 which concerns on the 2nd Embodiment of this invention. It is a vertical sectional view in the position along the BB line of Drawing 2 in display 1 concerning a 2nd embodiment which shows the process of providing conductive paste 40 and grounding electrode 50. It is a perpendicular | vertical sectional view in the position along the BB line of FIG. 2 in the display apparatus 1 which concerns on 2nd Embodiment which peeled the temporary film 31. FIG. It is a perpendicular | vertical sectional view in the position along the BB line of FIG. 2 in the display apparatus 1 which concerns on the modification 4 which peeled the temporary film 31. FIG. It is a perpendicular | vertical sectional view in the position along the B-B line of FIG. 2 in the display apparatus 1 which concerns on the modification 5 which peeled the temporary film 31. FIG. It is a perpendicular | vertical sectional view in the position along the BB line of FIG. 2 in the display apparatus 1 which concerns on the modification 6 which peeled the temporary film 31. FIG. It is a perpendicular | vertical sectional view in the position along the BB line of FIG. 2 in the display apparatus 1 which concerns on the modification 7 which peeled the temporary film 31. FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The disclosure is merely an example, and it is naturally included within the scope of the present invention as to what can be easily conceived of by those skilled in the art as to appropriate changes while maintaining the gist of the invention. In addition, the drawings may be schematically represented as to the width, thickness, shape, etc. of each portion in comparison with the actual embodiment in order to clarify the description, but this is merely an example, and the interpretation of the present invention is not limited. It is not limited. In the specification and the drawings, the same elements as those described above with reference to the drawings already described may be denoted by the same reference numerals, and the detailed description may be appropriately omitted.

First Embodiment
FIG. 1 is a plan view schematically showing a display device 1 according to a first embodiment of the present invention. The display device 1 is a display device such as a liquid crystal display device or an organic EL display device. Here, an organic EL display device will be described as an example. In the display device 1, a display panel 10 is provided on a substrate 3.

  In the display area 2 shown in FIG. 1, a plurality of pixels are arranged in a matrix. Each pixel can drive a transistor in accordance with a data signal to perform screen display in accordance with image data. Although a thin film transistor can typically be used as the transistor, any element may be used as long as it has an electric current control function.

  And the protective film 30 (it is also called a 1st protective film) is provided so that the display area 2 which the display panel 10 has may be covered. Further, in FIG. 1, on the end face of the display panel 10 corresponding to the end (the lower short side in FIG. 1) at which the temporary film 31 (also referred to as a second protective film) which has already been peeled is peeled last. A conductive paste 40 is provided.

  Hereinafter, with reference to FIGS. 2 to 6, a method of manufacturing the display device 1 according to the first embodiment as shown in FIG. 1 will be described. 2 to 6 are all cross-sectional views of a portion shown by the line A-A in FIG. Further, FIG. 1 corresponds to FIG.

  FIG. 2 is a vertical cross-sectional view at a position along line A-A of FIG. 1 in the display device 1 according to the first embodiment, showing a process of providing the display panel 10. First, the pixel array 11 including the TFTs and the pixel electrodes is provided on the substrate 3.

  The structure of the TFTs included in the pixel array 11 may be top gate type or bottom gate type. In addition, materials of respective layers constituting the TFT may be known materials and are not particularly limited. For example, as the semiconductor layer, generally, polysilicon, amorphous silicon, or an oxide semiconductor can be used. As the gate insulating film, silicon oxide or silicon nitride can be used. The gate electrode is made of a metal material such as copper, molybdenum, tantalum, tungsten, or aluminum. As the interlayer insulating film, silicon oxide or silicon nitride can be used. The source electrode and the drain electrode are respectively made of metal materials such as copper, titanium, molybdenum and aluminum.

  Next, the organic light emitting film 12 is provided on the pixel array 11. The organic light emitting film 12 has a light emitting film composed of at least an organic material, and functions as a light emitting portion of the light emitting element. In addition to the light emitting film, the organic light emitting film 12 can also include various layers such as an electron injection layer, an electron transport layer, a hole injection layer, and a hole transport layer.

  Thereafter, a cathode 13 is provided to cover the organic light emitting film 12. Since the display device 1 of the present embodiment is of the top emission type, a transparent electrode is used for the cathode 13. As a thin film forming the transparent electrode, an MgAg thin film or ITO (Indium Tin Oxide) or IZO (Indium Zinc Oxide), which is a transparent conductive film, is used.

  Next, a sealing film 14 for sealing these stacked structures is provided. The sealing film 14 covers a plurality of light emitting elements, and protects the light emitting elements from external moisture, outside air, and the like. It is preferable to use a dense inorganic insulating film such as a silicon nitride film as the sealing film 14. Note that the sealing film may have a stacked structure of an inorganic insulating film and an organic insulating film.

  Furthermore, an adhesive layer 15 is provided to cover the sealing film 14. As the adhesive layer 15, a known resin material of polyimide type, polyamide type, acrylic type, epoxy type or siloxane type can be used, but it is preferable to use an adhesive having a known light transmitting property. Further, if sufficient sealing and bonding of the sealing film 14 and the protective film 30 described later can be realized, it is not necessary to provide the adhesive layer 15 so as to overlap the entire sealing film 14 as shown in FIG. Alternatively, an annular substrate bonding member (also referred to as a sealing material) may be disposed. For example, organic resin or frit glass is used for the substrate bonding member.

  Here, the stacked structure of the pixel array 11, the organic light emitting film 12, the cathode 13, the sealing film 14, and the adhesive layer 15 described above is referred to as a display panel 10.

  FIG. 3 is a vertical cross-sectional view at a position along line A-A of FIG. 1 in the display device 1 according to the first embodiment, which shows a process of providing the conductive film 20. Of the adhesive layer 15 provided in the process shown in FIG. 2, the conductive film 20 is provided above the display panel 10. The conductive film 20 is made of, for example, a light-transmitting and conductive material such as ITO or IZO, as with the cathode 13.

  FIG. 4 is a vertical cross-sectional view at a position along line A-A of FIG. 1 in the display device 1 according to the first embodiment, showing a process of providing the protective film 30 and the temporary film 31. A protective film 30 is provided above the conductive film 20 provided in the process shown in FIG. 3, and a temporary film 31 is provided on the protective film 30. The protective film 30 and the temporary film 31 are made of, for example, polyimide, polyethylene terephthalate, polyethylene naphthalate or other flexible resin material.

  FIG. 5 is a vertical cross-sectional view at a position along line A-A in FIG. 1 in the display device 1 according to the first embodiment, showing a process of providing the conductive paste 40 and the conductive portion 41. The conductive portion 41 is provided on the temporary film 31 provided in the process shown in FIG. Then, in order to peel off the temporary film 31 in the direction of the arrow shown in FIG. 5, the conductive paste 40 is provided on the end face of the display panel 10 corresponding to the end portion to be peeled finally. The conductive paste 40 is made of, for example, a conductive resin material, and the conductive portion 41 is made of, for example, a light transmitting and conductive material such as an ITO layer or a metal.

  FIG. 6 is a vertical cross-sectional view of the display device 1 according to the first embodiment at a position along line A-A in FIG. 1 in which the temporary film 31 has been peeled off. When the temporary film 31 is peeled off from the state shown in FIG. 5 to the state shown in FIG. 6, charges are accumulated on the temporary film 31. At the same time, an opposite charge of the charge accumulated on the temporary film 31 is accumulated on the protective film 30. At this time, the charges accumulated in the protective film 30 and the temporary film 31 move to the conductive film 20 adjacent to the protective film 30 and the conductive portion 41 adjacent to the temporary film 31, respectively. Then, immediately after the temporary film 31 is completely peeled off, the conductive paste causes the charge accumulated on the side of the protective film 30 due to the peeling and the charge accumulated on the temporary film 31 to conduct the conductive film 20 and the conductive portion 41. It is bound and neutralized by moving again by 40. Therefore, it is possible to prevent the TFT or the circuit provided in the display panel 10 from being broken by the charge transfer caused by the peeling of the temporary film 31.

  Modifications 1 to 3 of the display device 1 according to the first embodiment are shown with reference to FIGS. 7 to 12. The description of the same configuration as that of the first embodiment will be omitted. FIG. 7 is a vertical cross-sectional view at a position along line A-A of FIG. 1 in the display device 1 according to the first modification, showing a process of providing the conductive paste 40 and the conductive portion 41. In the first modification, the cathode 13 is provided to cover the pixel array 11 and the organic light emitting film 12. Further, at least a part of the cathode 13 is provided so as to be electrically connected to the conductive paste 40 provided on the end face of the display panel 10.

  FIG. 8 is a vertical cross-sectional view at a position along the line A-A of FIG. 1 in the display 1 according to the first modification in which the temporary film 31 is peeled off. When the temporary film 31 is peeled off from the state shown in FIG. 7 to the state shown in FIG. 8, charges are accumulated on the temporary film 31. At the same time, an opposite charge of the charge accumulated on the temporary film 31 is accumulated on the protective film 30. At this time, the charges accumulated on the temporary film 31 move to the conductive portion 41 adjacent to the temporary film 31, and the charges accumulated on the protective film 30 move to the conductive film 20 adjacent to the protective film 30. Furthermore, some may move further to the cathode 13. Therefore, immediately after the temporary film 31 is completely peeled off, the charge accumulated on the protective film 30 side and the charge accumulated on the temporary film 31 due to peeling conduct the conductive portion 41 and the conductive film 20 and the cathode 13. By moving again with the conductive paste 40, it is bonded and neutralized. As a result, it is possible to more reliably prevent destruction of the TFT or the circuit provided in the display panel 10 due to charge transfer caused by the peeling of the temporary film 31.

  FIG. 9 is a vertical cross-sectional view at a position along line A-A of FIG. 1 in the display device 1 according to the second modification, showing a process of providing the conductive paste 40 and the conductive portion 41. The second modification differs from the configuration of the first modification in that the optical adjustment layer 16 is provided between the cathode 13 and the sealing film 14. The optical adjustment layer 16 is also referred to as a cap layer or a capping layer. The optical adjustment layer 16 is a layer that adjusts the optical path of light emitted from the organic light emitting film 12. The optical adjustment layer 16 also has an effect of preventing visualization of a sensor pattern such as ITO used for the cathode 13. The optical adjustment layer 16 contains a conductive material. Further, the optical adjustment layer 16 may contain, for example, zirconium oxide having high refractive index and high transparency, lithium fluoride, or the like.

  FIG. 10 is a vertical cross-sectional view of the display device 1 according to the second modification in which the temporary film 31 is peeled off, at a position along the line A-A in FIG. At this time, the charge localized in the temporary film 31 moves to the conductive portion 41 adjacent to the temporary film 31, and the charge localized in the protective film 30 moves to the conductive film 20 adjacent to the protective film 30. Furthermore, some may move further to the optical adjustment layer 16. In this case, the charge transferred to the optical adjustment layer 16 is further transferred to the cathode 13 in contact. Therefore, immediately after the temporary film 31 is completely peeled off, the charge accumulated on the protective film 30 side and the charge accumulated on the temporary film 31 due to peeling conduct the conductive portion 41 and the conductive film 20 and the cathode 13. By moving again with the conductive paste 40, it is bonded and neutralized. As a result, it is possible to more reliably prevent destruction of the TFT or the circuit provided in the display panel 10 due to charge transfer caused by the peeling of the temporary film 31.

  FIG. 11 is a vertical cross-sectional view at a position along the line A-A in FIG. 1 in the display device 1 according to the third modification, showing a process of providing the conductive paste 40 and the power part 41. In the third modification, the optical adjustment layer 16 is provided to cover the cathode 13. Further, at least a part of the optical adjustment layer 16 is provided so as to be electrically connected to the conductive paste 40 provided on the end face of the display panel 10.

  FIG. 12 is a vertical cross-sectional view of the display 1 according to the third modification in which the temporary film 31 is peeled off, at a position along the line A-A in FIG. As shown in FIGS. 9 to 10, when the temporary film 31 is peeled off, charges are unevenly distributed in the protective film 30 and the temporary film 31, respectively. At this time, the charge localized in the temporary film 31 moves to the conductive portion 41 adjacent to the temporary film 31, and the charge localized in the protective film 30 moves to the conductive film 20 adjacent to the protective film 30. Furthermore, some may move further to the optical adjustment layer 16. Therefore, immediately after the temporary film 31 is completely peeled off, the charge accumulated on the protective film 30 side and the charge accumulated on the temporary film 31 side due to peeling are the conductive portion 41 and the conductive film 20 and the optical adjustment layer 16. By moving again by the conductive paste 40 which is conducted, it is bonded and neutralized. As a result, it is possible to more reliably prevent destruction of the TFT or the circuit provided in the display panel 10 due to charge transfer caused by the peeling of the temporary film 31.

Second Embodiment
FIG. 13 is a plan view schematically showing a display device 1 according to a second embodiment of the present invention. In the display device 1, a display panel 10 is provided on a substrate 3. And the protective film 30 is provided so that the display area 2 which the display panel 10 has may be covered. In FIG. 13, the end face of conductive film 20 corresponding to the end (the lower short side in FIG. 13) at which the temporary film 31 which has already been peeled is peeled last, and the ground electrode 50 provided on the substrate 3. The conductive paste 40 is provided so as to conduct. The ground electrode 50 may be any conductive material, for example, made of metal. Further, the ground electrode 50 is grounded by being connected to a housing or the like constituting the display device 1.

  Hereinafter, with reference to FIG. 14 and FIG. 15, the manufacturing method of the display apparatus 1 which concerns on 2nd Embodiment as shown in FIG. 13 is demonstrated. 14 and 15 are cross-sectional views of a portion shown by the line B-B in FIG. 13 corresponds to FIG. 15, and the process of providing the display panel 10 on the substrate 3, the process of providing the conductive film 20 on the display panel 10, and the protective film 30 and temporary film on the upper surface of the conductive film 20. The step of providing 31 is the same as that of the first embodiment, so the description will be omitted.

  FIG. 14 is a vertical cross-sectional view at a position along the line B-B in FIG. 2 in the display device 1 according to the second embodiment, showing a process of providing the conductive paste 40 and the ground electrode 50. In order to peel off the temporary film 31 in the direction of the arrow shown in FIG. 14, the conductive paste 40 is provided on the end face of the conductive film 20 corresponding to the terminal end to be peeled off last. Further, a ground electrode 50 is provided on the substrate, and the conductive paste 40 is also conductive with the ground electrode 50. The conductive paste 40 is present from the end face of the conductive film 20 to the ground electrode 50, but may be provided so as to cover a part of the end face of the display panel 10.

  FIG. 15 is a vertical cross-sectional view of the display device 1 according to the second embodiment in which the temporary film 31 is peeled off, at a position along the line B-B in FIG. When the temporary film 31 is peeled off as shown in FIGS. 14 to 15, charges are accumulated on the temporary film 31. At the same time, an opposite charge of the charge accumulated on the temporary film 31 is accumulated on the protective film 30. At this time, the charge accumulated in the protective film 30 is transferred to the conductive film 20 adjacent to the protective film 30. Then, the charge is transferred to the ground electrode 50 by the conductive paste 40 which brings the conductive film 20 and the ground electrode 50 into conduction. Therefore, charges accumulated on the side of the protective film 30 due to charge transfer caused by peeling of the temporary film 31 are grounded from the ground electrode 50 through the conductive paste 40, thereby preventing destruction of the TFTs and circuits included in the display panel 10. be able to.

  Modifications 4 to 7 of the display device 1 according to the second embodiment are shown with reference to FIGS. 16 to 19. The description of the same configuration as that of the second embodiment will be omitted. FIG. 16 is a vertical cross-sectional view at a position along the line B-B in FIG. 2 in the display device 1 according to the fourth modification in which the temporary film 31 is peeled off. In the fourth modification, the cathode 13 is provided to cover the pixel array 11 and the organic light emitting film 12. Further, at least a part of the cathode 13 is provided so as to be electrically connected to the conductive paste 40 provided on the end face of the display panel 10.

  When the temporary film 31 is peeled off, the temporary film 31 is charged. At the same time, an opposite charge of the charge accumulated on the temporary film 31 is accumulated on the protective film 30. At this time, charges accumulated in the protective film 30 move to the conductive film 20 adjacent to the protective film 30, but some of them may further move to the cathode 13. Therefore, the charge is transferred to the ground electrode 50 by the conductive paste 40 which electrically connects the ground electrode 50 to the conductive film 20 and the cathode 13. As a result, charges accumulated on the side of the protective film 30 due to charge transfer caused by the peeling of the temporary film 31 are grounded from the ground electrode 50 through the conductive paste 40, so that TFTs and circuits included in the display panel 10 are broken. It can prevent more reliably.

  FIG. 17 is a vertical cross-sectional view of the display device 1 according to the fifth modification in which the temporary film 31 is peeled off, at a position along the line B-B in FIG. In the fifth modification, the optical adjustment layer 16 is provided to cover the cathode 113. Further, at least a part of the optical adjustment layer 16 is provided so as to be electrically connected to the conductive paste 40 provided on the end face of the display panel 10.

  When the temporary film 31 is peeled off, the temporary film 31 is charged. At the same time, an opposite charge of the charge accumulated on the temporary film 31 is accumulated on the protective film 30. At this time, the charge accumulated in the protective film 30 is transferred to the conductive film 20 adjacent to the protective film 30. Furthermore, some may move further to the optical adjustment layer 16. Therefore, the charge is transferred to the ground electrode 50 by the conductive paste 40 which electrically connects the ground electrode 50 to the conductive film 20 and the optical adjustment layer 16. As a result, charges accumulated on the side of the protective film 30 due to charge transfer caused by the peeling of the temporary film 31 are grounded from the ground electrode 50 through the conductive paste 40, so that TFTs and circuits included in the display panel 10 are broken. It can prevent more reliably.

  FIG. 18 is a vertical cross-sectional view at a position along the line B-B in FIG. 2 in the display 1 according to the sixth modification in which the temporary film 31 is peeled off. In the sixth modification, the cathode 13 is provided to cover the pixel array 11 and the organic light emitting film 12. Further, a part of the ground electrode 50 is incorporated in the display panel 10 so as to be connected to the cathode 13.

  When the temporary film 31 is peeled off, the temporary film 31 is charged. At the same time, an opposite charge of the charge accumulated on the temporary film 31 is accumulated on the protective film 30. At this time, the charge accumulated in the protective film 30 is transferred to the conductive film 20 adjacent to the protective film 30. At this time, there is a possibility that some of the electrodes may move further to the cathode 13. Therefore, the charge is transferred to the ground electrode 50 by the conductive paste 40 which electrically connects the ground electrode 50 to the conductive film 20 and the cathode 13. As a result, charges accumulated on the side of the protective film 30 due to charge transfer caused by the peeling of the temporary film 31 are grounded from the ground electrode 50 through the conductive paste 40, so that TFTs and circuits included in the display panel 10 are broken. It can prevent more reliably.

  FIG. 19 is a vertical cross-sectional view of the display device 1 according to the seventh modification in which the temporary film 31 is peeled off, at a position along the line B-B in FIG. In the seventh modification, the optical adjustment layer 16 is provided to cover the cathode 13. Further, a part of the ground electrode 50 is incorporated in the display panel 10 so as to be connected to the optical adjustment layer 16.

  When the temporary film 31 is peeled off, the temporary film 31 is charged. At the same time, an opposite charge of the charge accumulated on the temporary film 31 is accumulated on the protective film 30. At this time, the charge accumulated in the protective film 30 is transferred to the conductive film 20 adjacent to the protective film 30. At this time, there is a possibility that part of the light may further move to the optical adjustment layer 16. Therefore, the charge is transferred to the ground electrode 50 by the conductive paste 40 which electrically connects the ground electrode 50 to the conductive film 20 and the optical adjustment layer 16. As a result, charges accumulated on the side of the protective film 30 due to charge transfer caused by the peeling of the temporary film 31 are grounded from the ground electrode 50 through the conductive paste 40, so that TFTs and circuits included in the display panel 10 are broken. It can prevent more reliably.

  In any of the first and second embodiments of the present invention, the conductive film 20 provided under the protective film 30 is provided so as to overlap the display area 2 of the display panel 10. For example, at least a part of the display area 2 of the display panel 10 may be covered, such as providing the conductive film 20 in the form of vertical stripes along the direction of peeling the temporary film 31.

  It will be understood by those skilled in the art that various changes and modifications can be made within the scope of the concept of the present invention, and those changes and modifications are also considered to fall within the scope of the present invention. For example, a person skilled in the art may appropriately add, delete, or change design elements of the above-described embodiments, or add, omit, or change conditions of processes in the embodiments of the present invention. As long as it is included in the scope of the present invention.

  Further, it is understood that other effects and advantages provided by the aspects described in the present embodiment will be apparent from the description of the present specification, or those which can be appropriately conceived by those skilled in the art, according to the present invention. .

1: Display device 2: Display area 3: Substrate 10: Display panel 11: Pixel array 12: Organic light emitting film 13: Cathode 14: Sealing film 15: Adhesive layer 16: Optical adjustment layer 20: conductive film 30: protective film 31: temporary film 40: conductive paste 41: conductive portion 50: ground electrode.

Claims (15)

Providing a display panel having a display area;
Providing a conductive film above the display panel to cover at least a part of the display area;
Providing a first protective film and a second protective film on the first protective film above the conductive film;
Providing a conductive portion different from the conductive film on the display panel;
Providing a conductive resin material for electrically connecting the conductive film and the conductive portion on a part of an end face of the display panel;
Peeling the second protective film in the direction of the end face from the side opposite to the end face;
A method of manufacturing a display device, comprising: In the step of providing the conductive portion, the conductive portion is provided on the second protective film.
A method of manufacturing a display device according to claim 1, The display panel includes a substrate,
In the step of providing the conductive portion, the conductive portion is provided on the substrate.
A method of manufacturing a display device according to claim 1, In the step of providing the conductive resin material,
A conductive resin material is provided to electrically connect the conductive film to the cathode.
The manufacturing method of the display apparatus in any one of the Claims 1 to 3 characterized by the above-mentioned. In the step of providing the conductive resin material,
A conductive resin material is provided to electrically connect the cathode to the conductive portion.
A method of manufacturing a display device according to claim 4, characterized in that. In the step of providing the conductive resin material,
A conductive resin material is provided to electrically connect the conductive film to an optical adjustment layer made of the conductive material.
The manufacturing method of the display apparatus in any one of the Claims 1 to 3 characterized by the above-mentioned. In the step of providing the conductive resin material,
A conductive resin material is provided to electrically connect the optical adjustment layer made of the conductive material and the conductive portion.
A manufacturing method of a display according to claim 6, characterized in that. A display panel having a display area;
A conductive film covering at least a part of the display area provided above the display panel;
A protective film provided above the conductive film;
A conductive resin material provided so as to cover at least a part of the conductive film and the side surface of the protective film;
A display device characterized by having. The conductive resin material is further provided on the side surface of the display panel,
The display device according to claim 8, characterized in that: A display panel having a display area;
A conductive film covering at least a part of the display area provided above the display panel;
A protective film provided above the conductive film;
A conductive portion provided on a substrate of the display panel;
A conductive resin material provided in the display panel to electrically connect the conductive portion and the conductive film;
A display device characterized by having. The conductive portion conducts with the cathode,
The display device according to claim 10, characterized in that: The conductive portion is electrically connected to an optical adjustment layer made of a conductive material.
The display device according to claim 10, characterized in that: The conductive film has a side surface,
The conductive resin material is in direct contact with the side surface,
The display device according to any one of claims 10 to 12, characterized in that: The conductive portion is located outside the display area.
The display device according to any one of claims 10 to 13, characterized in that: The conductive resin material has a region directly in contact with the conductive portion, and a region located between the conductive portion and the side surface.
The display device according to claim 14, characterized in that:

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