| Method of manufacturing light emitting element and method of manufacturing display apparatus having the same -> Monitor Keywords |
|
|
  Method of manufacturing light emitting element and method of manufacturing display apparatus having the sameRelated Patent Categories: Electric Lamp Or Space Discharge Component Or Device Manufacturing, Process, Electrode Making, Electrode ShapingThe Patent Description & Claims data below is from USPTO Patent Application 20080090484. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application is a Divisional of U.S. application Ser. No. 11/017,532 filed on Dec. 20, 2004, which claims priority to Korean Application No. 2003-93741 filed on Dec. 19, 2003, the disclosure of which is hereby incorporated herein by reference in its entirety. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a method of manufacturing a light emitting element and a method of manufacturing a display apparatus having the light emitting element. More particularly, the present invention relates to a light emitting element capable of improving luminance and uniformity of the luminance and a method of manufacturing a display apparatus having the light emitting element. [0004] 2. Description of the Related Art [0005] A display apparatus, in general, converts data processed by an information processing device into an image. [0006] Display apparatuses includes a cathode ray tube (CRT) apparatus, a liquid crystal display (LCD) apparatus, an organic light emitting display (OLED) apparatus, a plasma display panel (PDP) apparatus, etc. The CRT apparatus controls electrons that are irradiated onto a fluorescent layer to display an image. The LCD apparatus displays the image using a liquid crystal. The OLED apparatus has a light emitting layer that generates a light using a current. The PDP apparatus displays the image using plasma. [0007] The OLED apparatus has various characteristics such as a thin thickness, a high luminance, a good color reproducibility, etc. [0008] The OLED apparatus has a faster response speed, a better color reproducibility, lower power consumption and a lower manufacturing cost than the LCD apparatus. In addition, the OLED apparatus may be operated at a lower temperature than the LCD apparatus. [0009] The OLED apparatus has a plurality of anodes arranged in a matrix shape on a substrate, an organic layer having cavities, light emitting patterns formed on the anodes in the cavities and a cathode on the light emitting patterns. [0010] Each of the light emitting patterns may have a positive charge carrier injecting pattern, a light emitting pattern, etc. The light emitting pattern may further have a negative charge carrier injecting pattern. [0011] The light emitting pattern may be formed through a spin coating process, a roll-to-roll process, a vacuum deposition process, etc. The light emitting pattern may be formed using a slit mask. In addition, droplets having a light emitting material are ejected in the cavities to form the light emitting pattern through an inkjet method. [0012] In a conventional inkjet method, the droplets are ejected through nozzles in the cavities. An inkjet printer may use the inkjet method. [0013] All of the droplets may not be simultaneously ejected in all of the cavities so that the inkjet method has a scanning process. In the scanning process, a portion of the droplets is serially ejected in a portion of the cavities. [0014] When the droplets are ejected in the cavities using the scanning process, evaporation rates of the droplets ejected in the cavities are different from one another so that the light emitting patterns have different profiles from one another. [0015] When the profiles of the light emitting patterns are different from one another, the OLED apparatus has non-uniform luminance so that an image display quality of the OLED apparatus is deteriorated. SUMMARY OF THE INVENTION [0016] The present invention provides a light emitting element capable of improving luminance and uniformity of the luminance. [0017] The present invention also provides a method of manufacturing a display apparatus having the above-mentioned light emitting element. [0018] A method of manufacturing a light emitting element in accordance with an aspect of the present invention is provided as follows. A plurality of first electrodes arranged in a matrix shape is formed on a pixel area of a base substrate. A bank is formed between the first electrodes. A light emitting material is ejected on a portion of the first electrodes spaced apart from one another to form a plurality of first light emitting patterns. The light emitting material is ejected on a portion of the first electrodes between the first light emitting patterns to form a plurality of second light emitting patterns. A second electrode is formed on the first and second light emitting patterns. [0019] A method of manufacturing a light emitting element in accordance with another aspect of the present invention is provided as follows. A plurality of first electrodes arranged in a matrix shape is formed on a pixel area of a base substrate. A bank is formed between the first electrodes. A light emitting material is ejected on a portion of the first electrodes spaced apart from one another to form a plurality of first light emitting patterns. The light emitting material is ejected on a portion of the first electrodes between the first light emitting patterns to form a plurality of second light emitting patterns. The light emitting material is ejected on a portion of the first electrodes between the first and second light emitting patterns to form a plurality of third light emitting patterns. A second electrode is formed on the first to third light emitting patterns. [0020] A method of manufacturing a display apparatus in accordance with an aspect of the present invention is provided as follows. A plurality of switching devices is formed on a pixel area of a base substrate. A plurality of driver devices is formed on the pixel area of the base substrate. A gate electrode of the driver device is electrically connected to a source/drain electrode of the switching device. A plurality, of first electrodes arranged in a matrix shape is formed on the pixel area of the base substrate. A bank is formed between the first electrodes. A light emitting material is ejected on a portion of the first electrodes spaced apart from one another to form a plurality of first light emitting patterns. The light emitting material is ejected on a portion of the first electrodes between the first light emitting patterns to form a plurality of second light emitting patterns. A second electrode is formed on the first and second light emitting patterns. [0021] The light emitting material may also be dropped or discharged on the first electrodes. Continue reading... Full patent description for Method of manufacturing light emitting element and method of manufacturing display apparatus having the same Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Method of manufacturing light emitting element and method of manufacturing display apparatus having the same patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Method of manufacturing light emitting element and method of manufacturing display apparatus having the same or other areas of interest. ### Previous Patent Application: Light source bodies for filament tubes and arc tubes Next Patent Application: Offset matrix adapter for toy construction sets Industry Class: Electric lamp or space discharge component or device manufacturing ### FreshPatents.com Support Thank you for viewing the Method of manufacturing light emitting element and method of manufacturing display apparatus having the same patent info. IP-related news and info Results in 0.76654 seconds Other interesting Feshpatents.com categories: Accenture , Agouron Pharmaceuticals , Amgen , AT&T , Bausch & Lomb , Callaway Golf |
||
