Adhesive, display apparatus having the adhesive, method of manufacturing the display apparatus, and bonding apparatus using the adhesive
An adhesive includes a base resin and a mixture. The base resin maintains a shape of the adhesive. The mixture is mixed in the base resin and a monomer reacts with the base resin and an ultraviolet (UV) initiator to initiate a polymerization reaction of the monomer as it is irradiated with UV light. The output pad electrode of the driving part and the input pad electrode of the display panel are electrically and physically connected to each other by using the adhesive cured as the UV light is irradiated, thereby simplifying a manufacturing process of a display apparatus and preventing a short that may be generated between pad electrodes.
1. A method of manufacturing a display apparatus, the method comprising:
forming a gate line, a data line, a switching element and a pixel electrode in a display area of an upper surface of a display panel, and forming an input pad electrode including a gate pad electrode extended from the gate line and a data pad electrode extended from the data line, and a transparent electrode overlapping the gate pad electrode and the data pad electrode in a peripheral area of the upper surface of the display panel surrounding the display area;
disposing an adhesive comprising a base resin in the peripheral area and a mixture mixed in the base resin, the mixture including a monomer that reacts with at least the base resin, and an ultraviolet (UV) initiator that initiates the reaction of the monomer with the base resin upon irradiation with the UV light;
disposing a driving part comprising an output pad electrode corresponding to the input pad electrode on the display panel on which the adhesive is disposed; and
irradiating a rear surface of the display panel opposite the upper surface on which the output pad electrode is disposed with UV light to cure the adhesive.
2. The method of claim 1 , wherein an area of the transparent electrode is greater than an area of the output pad electrode in a plan view, and the peripheral area includes a first area in which the input pad electrode and the output pad electrode overlap and a second area in which the input pad electrode and the output pad electrode do not overlap, the adhesive is partially disposed in the first area partially disposed in the second area,
wherein the adhesive disposed in the first area is cured by irradiating with UV light.
3. The method of claim 2 , wherein the adhesive disposed in the second area is cured by removing air from an area surrounding the adhesive on the second area.
4. The method of claim 1 , wherein the mixture further comprises a visible light initiator for initiating the reaction of the monomer as the adhesive is irradiated with visible light.
5. The method of claim 4 , further comprising irradiating the upper surface of the display apparatus on which the output pad electrode is disposed with visible light.
6. The method of claim 1 , further comprising aligning the output pad electrode to the input pad electrode by pressing the driving part.