Patent ID: 8830144

Claim:
A display panel comprising: a plurality of pixel circuits formed in a matrix on a substrate; an insulating layer covering the plurality of pixel circuits; a plurality of light emitting elements for emitting light and connected to the plurality of pixel circuits, and arranged in a matrix on the insulating layer; a filtering layer including a light transmitting section at least in a part of a region facing the light emitting element and a light shielding section, and formed on an opposite side from the pixel circuit in relation to the light emitting element; a light reflecting section formed in a region between the light emitting element and the filtering layer; and a light receiving element formed in a region facing the light shielding section, and on the pixel circuit side in relation to the light emitting element, the light transmitting section being a color filter to enable an intended wavelength region or regions of emitted light from the light emitting elements to be transmitted therethrough, and the light transmitting section, the light shielding section, the reflecting section, and the light receiving element being arranged such that (i) the light transmitting section and the light shielding section are in a same plane and (ii) the region to which the light reflecting section is formed faces the light shielding section so as to be in-line with the light shielding section and to not face or be in-line with the light emitting element, so that during operation a first part of the light emitted from the light emitting element(s) passes through the light transmitting section, and a second part of the light emitted from the light emitting element(s) is reflected by the light reflecting section and passes to the light receiving element, in which the first part of the light represents an amount of light which is larger than that of the second part of the light.