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Method for manufacturing display device

A technology for display devices and unit pixels, applied in lighting devices, semiconductor/solid-state device manufacturing, static indicators, etc., can solve problems such as unsatisfactory uniformity

Active Publication Date: 2009-10-28
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, the crystallization of each unit pixel cannot be satisfactorily uniformized by this technique, and luminance variations are recognized during operation of the display device 121 (refer to Figure 10 )

Method used

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  • Method for manufacturing display device
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  • Method for manufacturing display device

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Embodiment Construction

[0031] Embodiments according to the present invention will be described below with reference to the drawings.

[0032] Embodiments of the display device

[0033] A display device according to an embodiment of the present invention will be described.

[0034] Such as figure 1 As shown, in the display device 21 according to this embodiment, a plurality of unit pixels 22 provided with thin film transistors are located on the substrate in a matrix form, and the arrangement of the adjacent first unit pixels 22a and second unit pixels 22b is opposite to each other. It is symmetrical with respect to the first imaginary plane 23 perpendicular to the main surface (ie, figure) of the above-mentioned substrate.

[0035] In the present embodiment, between a plurality of thin film transistors constituting driving elements in the first unit pixel 22a and the second unit pixel 22b, for example, the thin film transistor 1 used as a switching transistor is arranged with respect to the first...

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Abstract

A method of manufacturing a display device including a plurality of unit pixels each having a thin film transistor at a position different from the center of the pixel, the method comprising the steps of: arranging unit pixels in a first row, and The second row adjacent to the row is provided with unit pixels so that they are symmetrical with respect to the first virtual plane perpendicular to the main surface of the substrate; and the unit pixels in the first and second rows are simultaneously irradiated with laser light, so that at least part of the thin film transistor is crystallized .

Description

technical field [0001] The present invention relates to a display device provided with a plurality of unit pixels driven by thin film transistors and a method for manufacturing the display device. Background technique [0002] In recent years, attention has been drawn to flat panel display type display devices based on an active matrix system provided with driving elements including thin film transistors (TFTs). In particular, a display device using organic electroluminescence (EL) has been developed toward commercialization. [0003] Here, the light emitting principle of the unit pixel of the organic EL display device based on the active matrix system will refer to Figure 7 The equivalent circuit of the unit pixel shown is described. The signal line is indicated by Y1, the current supply line is indicated by Y2, and the scanning lines are indicated by X1 and X2. [0004] Voltage is always supplied to the current supply line Y2. When a scan pulse is applied to the scan l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/02H01L27/12H01L21/82H01L21/84
CPCH01L27/3262H01L27/1285H01L21/02686H01L27/1274H01L27/1296H01L2227/323H05B33/10H05B33/02H10K59/1213H10K59/1201G09G3/30G09G5/10G09G2300/0426
Inventor 荒井俊明
Owner SONY CORP