Display device
A liquid crystal display device includes a liquid crystal display panel, a functional panel, a photo curable adhesive, a transparent electrode, and a light blocking line. The liquid crystal panel includes a display area to display an image and a non-display area surrounding the display area. The functional panel is attached to the liquid crystal panel, and includes a display overlapping area overlapping with the display area and a display non-overlapping area overlapping with the non-display area in a plan view. The photo curable adhesive is arranged between the panels and cured by light applied thereto. The transparent electrode is arranged in the display overlapping area and made of light transmissive conductive material. The light blocking line is arranged in the display non-overlapping area and made of light shielding metal material. The light blocking line partially has a light-transmission cutout that is configured to allow the light to pass therethrough.
1. A display device comprising:
a display panel including a display area in which an image is displayed and a non-display area surrounding the display area;
a functional panel attached to the display panel, the functional panel including a display overlapping area overlapping with the display area in a plan view and a display non-overlapping area overlapping with the non-display area in a plan view, the display non-overlapping area including a portion in which an electrical component is to be connected;
a photo curable adhesive between the display panel and the functional panel and cured by light applied thereto, the photo curable adhesive extending over an entirety of the display area and over a majority of the non-display area excluding a portion of the non-display area overlapping the portion of the display non-overlapping area in which the electrical component is to be connected;
a transparent electrode arranged in the display overlapping area of the functional panel and made of light transmissive conductive material; and
a light blocking line arranged in the display non-overlapping area of the functional panel and made of light shielding metal material, the light blocking line including a plurality of light transmission cutouts that allow the light to pass therethrough, wherein
the light blocking line includes:
a first portion overlapping the photo curable adhesive; and
a second portion not overlapping the photo curable adhesive, wherein each of the first portion and the second portion includes the plurality of light transmission cutouts.
2. The display device according to claim 1 , wherein the light blocking line includes a potential supply line connected to the transparent electrode to supply a potential to the transparent electrode.
3. The display device according to claim 2 , wherein at least one of the transparent electrode in the display overlapping area and the potential supply line in the display non-overlapping area includes an extension connector, the extension connector extending toward at least one of the display overlapping area and the display non-overlapping area and being connected to the other one of the transparent electrode and the potential supply line.
4. The display device according to claim 3 , wherein the transparent electrode includes the extension connector, the extension connector extending to the display non-overlapping area and being connected to the potential supply line.
5. The display device according to claim 2 , further comprising a flexible substrate connected to the functional panel and an external circuit, wherein
the potential supply line includes a terminal connected to the flexible substrate, the terminal being provided at an end of the potential supply line remote from an end thereof to which the transparent electrode is connected.
6. The display device according to claim 2 , wherein:
the light blocking line further includes a ground line that is grounded; and
the ground line extends in a loop-like shape that surrounds the display overlapping area and the potential supply line.
7. The display device according to claim 1 , wherein:
the light blocking line includes a first light blocking line and a second light blocking line that are arranged on different surfaces of the functional panel from each other, at least a part of the first light blocking line and at least a part of the second light blocking line overlapping with each other in a plan view;
the light transmission cutout includes a first light transmission cutout in the first light blocking line and a second light transmission cutout in the second light blocking line; and
the first light transmission cutout and the second light transmission cutout overlap with each other in a plan view.
8. The display device according to claim 1 , wherein the functional panel is a parallax barrier panel that separates the image displayed on the display panel by parallax.
9. The display device according to claim 8 , wherein:
the parallax barrier panel includes two substrates arranged to face each other and liquid crystals sealed between the substrates;
the transparent electrode includes a plurality of transparent electrodes; and
each of the transparent electrodes is arranged on a plate surface of each of the substrates so as to face each other with the liquid crystals therebetween, the transparent electrodes provide a plurality of barrier sections and a barrier opening between the barrier sections by a controlled voltage between the transparent electrodes, the barrier sections block light, the barrier opening allows light to pass therethrough.
10. The display device according to claim 9 , wherein one of the transparent electrodes is arranged on another plate surface of one of the substrates, the other plate surface facing a side opposite to the liquid crystals, and
the transparent electrode arranged on the other plate surface provides a touch panel pattern that detects a position input by a user of the display device.
11. The display device according to claim 1 , wherein the functional panel is a touch panel in which the transparent electrode configures a touch panel pattern that detects a position input by a user of the display device.
12. The display device according to claim 1 , wherein the light transmission cutouts are arranged in a longitudinal direction and a width direction of the light blocking line.
13. The display device according to claim 12 , wherein the plurality of light transmission cutouts each have an equal size and are arranged at a constant arrangement pitch.
14. The display device according to claim 1 , wherein the light transmission cutout extends along a longitudinal direction of the light blocking line.
15. The display device according to claim 1 , wherein:
the display panel is a liquid crystal panel that includes two substrates and liquid crystals sealed between the substrates; and
the display device further includes a lighting device that applies light to the liquid crystal panel.
16. The display device according to claim 1 , wherein the photo curable adhesive is a liquid-based adhesive cured by light.
17. A display device comprising:
a display panel including a display area in which an image is displayed and a non-display area surrounding the display area;
a functional panel attached to the display panel, the functional panel including a display overlapping area overlapping with the display area in a plan view and a display non-overlapping area overlapping with the non-display area in a plan view, the display non-overlapping area including a portion in which an electrical component is to be connected;
a photo curable adhesive between the display panel and the functional panel and cured by light applied thereto, the photo curable adhesive extending over an entirety of the display area and over a majority of the non-display area excluding a portion of the non-display area overlapping the portion of the display non-overlapping area in which the electrical component is to be connected;
a transparent electrode arranged in the display overlapping area of the functional panel and made of light transmissive conductive material; and
a light blocking line arranged in the display non-overlapping area of the functional panel and made of light shielding metal material, the light blocking line including a plurality of light transmission cutouts that allow the light to pass therethrough, wherein
the plurality of light transmission cutouts are arranged over an entire area of the light blocking line with a constant arrangement pitch.