JP6014958B2 - Touch device combined with AMOLED panel and manufacturing method thereof - Google Patents

Description

  The present invention relates to a touch device and a manufacturing method thereof, and more particularly, to a touch device combined with an AMOLED (Active Matrix Organic Light Emitting Diode) panel and a manufacturing method thereof.

  A touch screen, also referred to as a “touch control screen” or “touch panel”, is a sensing type liquid crystal display device that can receive an input signal from a contact or the like. When a graphical button on the screen is touched, tactile feedback on the screen is performed. The system can drive various related devices by a pre-programmed program, can replace mechanical button panels, and can create live audio and video effects with a liquid crystal display screen. Touch screens are the simplest, most convenient and natural form of human computer interaction today as the latest computer input device, giving multimedia a new look, an attractive and innovative multimedia interactive device. is there. Mainly applied to public information search, leader's office, industrial control, military command, electronic game, song and food order, multimedia lesson, real estate sales. Conventional in-cell optical touch screens usually use a reflected light source generated by a liquid crystal display (LCD) backlight panel or an external environment light source, but are passive. Since the light source is adopted, there are strict requirements for both the backlight reflection and the incident angle of the external light source, an error signal is generated due to an error in the light source angle, or a difference in the amount of light incident by the user, for example, ghost etc. A defect is likely to occur.

  The present invention relates to a touch device combined with an AMOLED panel in order to solve the problem that an error signal is generated due to an error in the light source angle and a defect such as a ghost is generated due to a difference in the amount of light incident in the prior art, and It aims at providing the manufacturing method.

  In view of this, in order to solve the above technical problem, in one embodiment of the present invention, a base on which a thin film transistor array is disposed, an organic light emitting diode provided on the base, and an organic light emitting diode provided on the organic light emitting diode An AMOLED panel comprising: an electrode; a touch cover provided on the upper electrode; and a photosensor provided between the organic light emitting diode and the base and positioned immediately below the upper electrode. A touch device is provided.

  A further improvement of the touch device combined with the AMOLED panel of the present invention is that the upper electrode is an upper cathode or an upper anode.

  A further improvement of the touch device combined with the AMOLED panel of the present invention is that the touch cover is a glass cover or a plastic cover made of a polymer material.

  A further improvement of the touch device combined with the AMOLED panel of the present invention is that the photosensor is incorporated in the organic light emitting diode.

  A further improvement of the touch device combined with the AMOLED panel of the present invention is that a package structure is further provided between the base and the touch cover.

  In another aspect of the present invention, a base is manufactured, a thin film transistor array is disposed on the base, a photosensor is formed on the base, an organic light emitting diode is formed on the photosensor, A method of manufacturing a touch device combined with an AMOLED panel, comprising: forming an upper electrode on the organic light emitting diode so as to be positioned immediately above the optical sensor; and installing a touch cover on the upper electrode. I will provide a.

  A further improvement of the manufacturing method of the touch device combined with the AMOLED panel of the present invention is that the formed organic light emitting diode covers the photosensor.

  A further improvement of the manufacturing method of the touch device combined with the AMOLED panel of the present invention is that the upper electrode is formed on the organic light emitting diode, and the upper electrode is formed by patterning the organic light emitting diode by a cutting technique. Is to include that.

  A further improvement of the manufacturing method of the touch device combined with the AMOLED panel of the present invention is that the upper electrode is an upper cathode or an upper anode.

  The touch device combined with the AMOLED panel of the present invention and the manufacturing method thereof have the following advantageous effects. That is, the present invention does not generate an error signal due to an error in the light source angle, and can improve quality without causing defects such as a ghost due to a difference in the amount of light incident by the user, In addition, the present invention adopts In-Cell optical touch technology in the AMOLED panel, and an optical sensor is provided between the organic light emitting diode and the base, thereby making the screen thinner and lighter, making it lighter and thinner. Can be realized.

It is a structure schematic diagram of the touch device combined with the AMOLED panel of the present invention. FIG. 4 is a schematic diagram of a structure when the touch device combined with the AMOLED panel of the present invention is not touched. FIG. 4 is a schematic diagram of a structure after a touch device combined with the AMOLED panel of the present invention is touched. 3 is a flowchart of a manufacturing method of a touch device combined with an AMOLED panel of the present invention.

  In the following, embodiments of the present invention will be described with specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention based on the contents disclosed in the present specification. . The present invention may be implemented or applied in accordance with other different specific embodiments, and each detail in the present specification may be modified or modified in various ways within the scope of the present invention based on different viewpoints and applications. Changes can be made.

  Please refer to the attached drawings. The drawings provided in this embodiment are merely for schematically explaining the basic concept of the present invention, and accordingly, the drawings are drawn according to the number, shape, and size of members actually used. However, only the members related to the present invention are shown, and when actually implemented, the form, number and ratio of each member may be arbitrarily changed, and the arrangement form of the members may be more complicated. It is necessary to explain that there is sex.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings to describe the technical solution of the present invention in detail.

  Please refer to FIG. FIG. 1 is a structural schematic diagram of a touch device combined with an AMOLED panel of the present invention. As shown in FIG. 1, the touch device combined with the AMOLED panel of the present invention includes a base 11, an organic light emitting diode 12, an upper electrode 13, a touch cover 14, an optical sensor 15, and a package structure 16. Prepare.

  A thin film transistor array (TFT Array) is disposed on the base 11. In the present embodiment, the base 11 may include at least one of glass, resin, and metal.

  The organic light emitting diode 12 is provided on the base 11. In this embodiment, the organic light emitting diodes may include red, blue and green organic light emitting diodes (R-OLED, G-OLED, B-OLED), and red, blue, green and white organic light emitting diodes (R-OLED). OLED, G-OLED, B-OLED, W-OLED).

  The upper electrode 13 is provided on the organic light emitting diode 12. In this embodiment, the upper electrode 13 is an upper cathode or an upper anode.

  The touch cover 14 is provided on the upper electrode 13. In this embodiment, the touch cover 14 is a glass cover or a plastic cover made of a polymer material.

  The optical sensor is provided between the organic light emitting diode 12 and the base 11 and is located immediately below the upper electrode 13. In the present embodiment, the optical sensor 15 is preferably built in the organic light emitting diode 12, that is, the optical sensor 15 is covered with the organic light emitting diode 12.

  The package structure 16 is located between the base 11 and the touch cover 14. In this embodiment, the package structure 16 is an adhesive.

  As can be seen from the above, in the touch device combined with the AMOLED panel of the present invention, the organic light emitting diode 12 is placed so that the photosensor 15 is positioned directly below the upper electrode 13 by adopting the in-cell optical touch technology. 1 and 2 and FIG. 3, in actual application, referring to FIGS. 1, 2 and 3, when the user's finger 17 slides on the touch cover 14, the upper electrode below the touch cover 14 13 is a finger 17 and capacitance sensing occurs. At this time, the organic light emitting diode (OLED) 12 in the intermediate layer has a different pressure difference between its cathode and anode due to the change in the upper capacitance value. Furthermore, the light emission amount of the OLED causes a change, and the lower light sensor 15 changes the amount of current flowing due to the change in the light emission amount of the OLED, causing a change in the charging state of the connected capacitor. Thus, touch control is achieved.

Please refer to FIG. FIG. 4 shows a flowchart of a manufacturing method of a touch device combined with the AMOLED panel of the present invention. As shown in FIG.
Step S401 for manufacturing a base and disposing a thin film transistor array on the base;
Forming an optical sensor on the base, step S403;
Forming an organic light emitting diode in the photosensor; S405;
Forming an upper electrode on the organic light emitting diode so as to be located immediately above the photosensor;
And a step S409 of installing a touch cover on the upper electrode.

  In this embodiment, the base may include at least one of glass, resin, and metal.

  In this embodiment, the upper electrode is an upper cathode or an upper anode, and the formation of the upper electrode specifically includes patterning the organic light emitting diode by a cutting technique.

  In this embodiment, the touch cover is a glass cover or a plastic cover made of a polymer material.

  In summary, the touch device combined with the AMOLED panel of the present invention and the manufacturing method thereof have the following advantageous effects. That is, the present invention does not generate an error signal due to an error in the light source angle, and can improve quality without causing defects such as a ghost due to a difference in the amount of light incident by the user, In addition, the present invention adopts In-Cell optical touch technology in the AMOLED panel, and an optical sensor is provided between the organic light emitting diode and the base, thereby making the screen thinner and lighter, making it lighter and thinner. Can be realized.

  Although the specific embodiments described above describe the technical problems, technical solutions, and beneficial effects solved by the present invention in more detail, what has been described above is merely specific embodiments of the present invention. However, the present invention is not intended to limit the present invention, and all modifications, equivalent replacements, and improvements made without departing from the spirit and principle of the present invention are included in the scope of the claims of the present invention. It should be understood that it should be done.

Claims (7)

A base on which a thin film transistor array is disposed;
An organic light emitting diode provided on the base;
An upper electrode provided in the organic light emitting diode, which is an anode or a cathode of the organic light emitting diode ;
A touch cover provided on the upper electrode;
An optical sensor provided between the organic light emitting diode and the base and positioned immediately below the upper electrode ;
With
A touch device combined with an AMOLED panel, wherein detection of a change in light emission amount of the organic light emitting diode by the optical sensor is touch detection .   The touch device combined with the AMOLED panel according to claim 1, wherein the touch cover is a glass cover or a plastic cover made of a polymer material.   The touch device combined with an AMOLED panel according to claim 1, wherein the photosensor is built in the organic light emitting diode.   The touch device combined with the AMOLED panel according to claim 1, further comprising a package structure between the base and the touch cover. A method of manufacturing a touch device that uses touch detection to detect a change in the amount of light emitted from an organic light emitting diode by an optical sensor,
Manufacturing a base and disposing a thin film transistor array on the base;
Forming an optical sensor on the base;
Forming an organic light emitting diode in the photosensor;
Forming an upper electrode that is an anode or a cathode of the organic light emitting diode on the organic light emitting diode so as to be located immediately above the photosensor;
And placing the touch cover over the upper electrode
A method for manufacturing a touch device combined with an AMOLED panel, comprising: The method of claim 5 , wherein the formed organic light emitting diode covers the photosensor. 6. The AMOLED panel according to claim 5 , wherein forming the upper electrode on the organic light emitting diode includes patterning the organic light emitting diode by a cutting technique to form the upper electrode. A method for manufacturing a touch device.

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