Organic light emitting display device and method of manufacturing the same
First Claim
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1. An organic light-emitting display device, comprising:
- first through third sub-pixels each comprising at least one capacitor, at least one thin-film transistor (TFT), and an organic light-emitting device (OLED);
first, second andfirst through third switching devices including one of a common source electrode and a common drain electrode, the first, second andfirst through third switching devices being electrically connected to the first through third sub-pixels, respectively to apply an initializing voltage to the first, second andfirst through third sub-pixels when the first, second andfirst through third switching devices are turned on;
a planarization layer arranged on the first, second and first through third switching devices;
a via-hole arranged through the planarization layer to expose the one of a the common source electrode and a the common drain electrode; and
an initializing electrode electrically connected to the one of a the common source electrode and a the common drain electrode through the via-hole, the initializing electrode to transmit transmitting the initializing voltage to the one of a the common source electrode and a the common drain electrode.
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Abstract
A design for an organic light-emitting display device that increases capacitor capacity and increases aperture ratio by forming an initializing voltage electrode on a different layer than an electrode of the capacitor and forming only one via hole for an entire set of three sub-pixels. One of the source electrodes and the drain electrodes of switching transistors for the three sub-pixels are formed in common, along with the gate electrodes of the switching transistors.
14 Citations
40 Claims
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1. An organic light-emitting display device, comprising:
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first through third sub-pixels each comprising at least one capacitor, at least one thin-film transistor (TFT), and an organic light-emitting device (OLED); first, second andfirst through third switching devices including one of a common source electrode and a common drain electrode, the first, second andfirst through third switching devices being electrically connected to the first through third sub-pixels, respectively to apply an initializing voltage to the first, second andfirst through third sub-pixels when the first, second andfirst through third switching devices are turned on; a planarization layer arranged on the first, second and first through third switching devices; a via-hole arranged through the planarization layer to expose the one of a the common source electrode and a the common drain electrode; and an initializing electrode electrically connected to the one of a the common source electrode and a the common drain electrode through the via-hole, the initializing electrode to transmit transmitting the initializing voltage to the one of a the common source electrode and a the common drain electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of manufacturing an organic light-emitting display device, the method comprising:
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defining first through third sub-pixels each comprising at least one capacitor, at least one thin-film transistor (TFT), and an organic light-emitting device (OLED); forming first through third switching devices electrically connected to first through third sub-pixels, respectively, the first through third switching devices include including one of a commonly formed drain electrode or a commonly formed source electrode, the first through third switching devices disposed to apply an initializing voltage to the first through third sub-pixels when the first through third switching devices are turned on; forming a planarization layer on the first through third switching devices; forming a via-hole through the planarization layer to expose the one of a the commonly formed drain electrode or a the commonly formed source electrode; and forming an initializing electrode electrically connected to the one of a the commonly formed drain electrode or a the commonly formed source electrode via the via-hole to transmit the initializing voltage to the one of a the commonly formed drain electrode or a the commonly formed source electrode. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An organic light-emitting display device, comprising:
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a plurality of sub-pixels each comprising at least one capacitor, at least one thin-film transistor (TFT), and an organic light-emitting device (OLED); a plurality of switching devices including one of a common source electrode and a common drain electrode, the plurality of switching devices being electrically connected to the plurality of sub-pixels, respectively to apply an initializing voltage to the plurality of sub-pixels when the plurality of switching devices are turned on, each of the plurality of switching devices including a gate electrode, the gate electrodes for the plurality of switching devices being connected together; a planarization layer arranged on the plurality of switching devices; a via-hole arranged through the planarization layer to expose the one of the common source electrode and the common drain electrode; and an initializing electrode electrically connected to the one of the common source electrode and the common drain electrode through the via-hole, the initializing electrode transmitting the initializing voltage to the one of the common source electrode and the common drain electrode. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A method of manufacturing an organic light-emitting display device, the method comprised of:
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defining a plurality of sub-pixels each comprising at least one capacitor, at least one thin-film transistor (TFT), and an organic light-emitting device (OLED); forming a plurality of switching devices electrically connected to different corresponding ones of the plurality of sub-pixels, the plurality of switching devices including one of a commonly formed drain electrode or a commonly formed source electrode, the plurality of switching devices applying an initializing voltage to the plurality of sub-pixels when the plurality of switching devices are turned on, each of the plurality of switching devices including a gate electrode, the gate electrodes for the plurality of switching devices being connected together; forming a planarization layer on the plurality of switching devices; forming a via-hole through the planarization layer to expose the one of the commonly formed drain electrode or the commonly formed source electrode; and forming an initializing electrode electrically connected to the one of the commonly formed drain electrode or the commonly formed source electrode via the via hole to transmit the initializing voltage to the one of the commonly formed drain electrode or the commonly formed source electrode. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40)
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Specification