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Display device

A technology for display devices and display parts, which is applied to display devices, identification devices, control devices, etc., and can solve problems such as weakening effects of circular polarization mechanisms, different hues and glossy states, etc.

Inactive Publication Date: 2008-01-23
NIPPON SEIKI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, the end face (notch) formed by forming the hole cannot be seen, but the electroluminescent display element 20 seen through the transmissive portion 40 is different from the color tone and glossy state of the light shielding layer 39b (black) around it.
1 is also the same, however, the distinction (boundary) from the electroluminescent display element 20 is clear, and the impression that the electroluminescent display element 20 is a different part (displayed separately) is produced anyway.
[0008] In addition, in Patent Document 2, the visibility of the organic EL element 40 in a single state is greatly improved. However, when such a display element is used for the display device shown in FIG. 7 of Patent Document 1, for example, There is also external light reflected by the transmissive part 40, and the effect as the circular polarization mechanism 49 is weakened.

Method used

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Embodiment Construction

[0026] The present invention will be described below based on various embodiments. 1 to 3 show a first embodiment of the present invention. FIG. 1 is a front view of a display device having an electroluminescence display element 1, and FIG. 2 is a cross-sectional view thereof (A-A cross-section in FIG. 1). FIG. 3 is a cross-sectional view showing details of the electroluminescent display element 1 .

[0027] The display device of the present embodiment comprises an electroluminescent display element 1; a translucent member 2 arranged on the front side of the electroluminescent display element 1; a circular polarizer 3 arranged on the front side of the translucent member 2; The housing part 4 made of synthetic resin of the optical component 2; the hard circuit substrate 5, which is loaded with a driving circuit, etc., and the driving circuit is electrically connected with the electroluminescent display element 1 to drive the electroluminescent display element 1; the cover circ...

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Abstract

An object of the present invention is to provide a display device having a light-emitting display element, which suppresses reflection of external light and provides a sense of unity between the light-emitting display element and its surroundings. The display device comprises an electroluminescent display element (1) having a glass substrate (light-transmitting substrate), a transparent electrode, a light-emitting layer and a back electrode; Part (2); a circular polarizer (3) arranged on the front side of the light-transmitting member (2); a display area ( A black light-shielding layer (19) other than S); a reflective layer (18) of the same color or similar color as the back electrode.

Description

technical field [0001] The present invention relates to a display device having a self-luminous display element such as an electroluminescence display element. Background technique [0002] As a display device having an electroluminescent display element, for example, Patent Document 1 and Patent Document 2 described below are included. In the display device described in Patent Document 1, as shown in, for example, FIG. Therefore, even when external light such as sunlight enters, almost the entire range of the electroluminescent display element 20 appears to have substantially the same color tone, and there is no risk of deterioration in appearance. [0003] In addition, in the display element described in Patent Document 2, as shown in, for example, FIG. 2 of Patent Document 2, a linearly polarized The circular polarization mechanism 49 formed by the sheet 11 and the birefringent sheet 23 suppresses the incident from the outside and the reflected light reflected inside th...

Claims

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Application Information

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IPC IPC(8): G09F9/00H01L27/32G09F9/30
CPCB60K35/00B60K2350/2034H01L51/5281G09F13/22G09F9/33H10K59/8791B60K2360/331H10K50/86
Inventor 福岛一夫张来荣五十岚秀树正司直路
Owner NIPPON SEIKI CO LTD
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