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Light-emitting device and electronic device

A technology of light-emitting devices and electronic appliances, which is applied in the direction of electric solid-state devices, semiconductor devices, electroluminescent light sources, etc., and can solve the problems of low aperture ratio and inability to see images at the same time

Inactive Publication Date: 2004-12-01
SEMICON ENERGY LAB CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in this case, the image cannot be seen from both sides at the same time
[0012] In addition, in the double-sided emission type device driven by the active matrix, there is a problem that the driving element of the bottom emission type device is provided in a part of the display part, and the aperture ratio (aperture ratio) of the bottom emission type device area becomes low.

Method used

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  • Light-emitting device and electronic device
  • Light-emitting device and electronic device
  • Light-emitting device and electronic device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0153] This embodiment will show an example in which the light emitting device of the present invention is applied to a portable information terminal typified by a cellular phone.

[0154] 9A to 9D show the external view of the mobile phone, and FIG. 9A shows an oblique perspective view of the opened state, and FIG. 9B shows an oblique perspective view of the folded state, which is also an oblique view seen from the side of the first frame provided with the second display surface. perspective.

[0155] The mobile phone includes two frames (a first frame 8000a and a second frame 8000b ), connected together by a hinge 8101 . The mobile phone can rotate around the hinge.

[0156] The first frame 8000a is provided with a first display surface 8001a, a second display surface 8001b, operation buttons 8002b, speakers 8003a, 8003b, an antenna 8004, and a camera lens 8005.

[0157] On the other hand, operation buttons 8002a, a microphone 8102, and the like are provided on the second ...

Embodiment 2

[0168] This example will use Figures 10A to 10C An example of applying the light emitting device of the present invention to a notebook computer is shown.

[0169] Figures 10A to 10C Represents the appearance diagram of applying the notebook computer of the present invention, Figure 10A Showing the side view of the open state, Fig. 10B shows an oblique perspective view seen from the user (explainer) 9005, that is, from the side of the first display surface of the keyboard when the two frames are folded. FIG. 9C shows an oblique perspective view viewed from the speaker 9006, that is, from the display surface (second display surface) 9002b on the opposite side of the first display surface.

[0170] The notebook computer includes two frames (a first frame 9000a and a second frame 9000b ), which are connected together by a hinge 9001 . The notebook computer can rotate around the hinge 9001.

[0171] The first frame 9000a is provided with a display panel, operation buttons, ...

Embodiment 3

[0176] This example will use Figure 11 An example in which the light emitting device of the present invention is applied to an electronic bulletin board will be described.

[0177] Figure 11 It represents an electronic bulletin board displaying the timetable of electric trains, including a frame 7001, a display part 7002, and a driving device (not shown) for driving the display part. In addition, use the bracket 7003 to fix the electronic bulletin board to the ceiling, wall, column, etc.

[0178] By applying the light-emitting device of the present invention to the display part, since train information such as train type, departure time, destination, number of vehicles, etc. can be displayed on the front and back sides, the weight of the electronic bulletin board can be reduced. In addition, since different information can be displayed on each side, the number of electronic bulletin boards can be reduced, thereby reducing costs.

[0179] In addition, the present invention...

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PUM

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Abstract

The present invention provides a light-emitting device that can independently display images of both front and back sides, in a light emitting device that can display in the both sides and also provides a light-emitting device in which the aperture ratio of both or either of front and back displays increases. A light-emitting device has a structure in which a first light-emitting element and a second light-emitting element that are adjacent to each other are arranged in matrix; wherein the first light-emitting element can emit light to a first side of a substrate and the second light-emitting element can emit light to a second side that is opposite to the first side of the substrate. And light-emission of the first light-emitting element to the second side is shielded and light-emission of the second light-emitting element to the first side is shielded. In each light-emitting element, since a side opposite to a light-emitting side has a film having a light shielding effect, light-emission can be performed separately in each side.

Description

technical field [0001] The present invention relates to a light-emitting device in which a pixel portion is formed by a light-emitting element, wherein the light-emitting element includes a light-emitting layer containing an electro-luminescence (Electro-Luminescence) material between a pair of electrodes. Light emitting devices shown. Furthermore, the present invention also relates to an electronic appliance comprising two display surfaces, a front and a rear. Background technique [0002] In recent years, research on light-emitting devices using light-emitting elements as self-luminous light-emitting elements has been very active. The light-emitting device is also called an organic EL (Electro Luminescence) display or an organic light-emitting diode. Since these light emitting devices have features such as fast response speed, low voltage, and low power consumption drive suitable for dynamic picture display, they are attracting attention as next-generation displays for a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/00G09G3/32H01L27/15H01L27/32H05B33/12H05B33/28
CPCH01L27/3267G09G2300/0861G09G3/3225G09G2300/0847G09G2300/0426G09G2300/0465H10K59/128C02F1/725C02F1/78C02F1/32C02F1/74C02F2305/10C02F2201/3225
Inventor 中岛晴惠濑尾哲史根本幸惠
Owner SEMICON ENERGY LAB CO LTD