display device
A display device, electrode technology, applied in static indicators, instruments, optics, etc., can solve problems such as difficulty in enhancing contrast visibility
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no. 1 approach
[0022] use figure 1 , to describe the display device according to the first embodiment. figure 1 is a cross-sectional view of one example of the structure of the display device according to the first embodiment;
[0023] The display device 1 according to the first embodiment is a reflective display device including: a light modulation layer 5 sandwiched between and held by an upper substrate 4a and a lower substrate 4b; a polarizing layer 2 , arranged on the front surface of the light modulation layer 5; a reflective layer 6, arranged on the back surface of the light modulation layer 5; and a phase delay layer 3, arranged between the polarizing layer 2 and the light modulation layer 5 between. The display device 1 performs display by reflecting external light 8 entering the display device 1 by the reflective layer 6 . In the following description, it is assumed that the side where the external light 8 enters is the front side and the opposite side is the back side. Also, i...
no. 2 approach
[0038] Now, a display device according to a second embodiment is described. The display device according to the second embodiment is obtained by adding a light source operating in a dark place to the display device 1 according to the first embodiment. Now, describe the details.
[0039] figure 2 One example of the structure of the display device according to the second embodiment is shown.
[0040] exist figure 2 The display device 10 shown in includes an image signal output unit 11 , a signal processing unit 12 , a display panel 30 , a display panel driving unit 50 , a side light source 60 , a light source driving unit 70 and an optical sensor 80 .
[0041] The image signal output unit 11 outputs an image signal 21 to the signal processing unit 12 . Color information corresponding to the display modules of the display panel 30 is set in the image signal 21 .
[0042] The signal processing section 12 generates a display signal to be displayed on the display panel 30 based...
no. 3 approach
[0119] Now, a display device according to a third embodiment is described. The display device 10 according to the third embodiment includes a side light source 60 as a light source operating in a dark place. However, the display device according to the third embodiment includes a front light as a light source. The display device according to the third embodiment is realized by using a front light type display device instead of the display device 10 according to the second embodiment, and the display device according to the third embodiment is the same as that in figure 2 and image 3 The display device 10 according to the second embodiment shown in is otherwise the same.
[0120] As described in the second embodiment, using the side light source 60 has the effect of reducing the thickness of the display device 10 . On the other hand, it is not necessary to reduce the thickness but to reduce the area of the display device 10 . The display device according to the third em...
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