This application relates to a method for forming an enclosure for a portable electronic device. The enclosure includes a metal substrate having a first b* value. The method includes forming an anodized layer that overlays and is formed from the metal substrate, wherein the anodized layer has a second b* value that is no greater than 0.3 of the first b* value and no less than 0.3 less than the first *b value.

This application relates to an anodized part. The anodized part includes a metal substrate and an anodized layer overlaying and formed from the metal substrate. The anodized layer includes (i) an external surface that includes randomly distributed light-absorbing features that are capable of absorbing visible light incident upon the external surface, and (ii) pores defined by pore walls, where color particles are infused within the pores. The anodized layer is characterized as having a color having an L* value using a CIE L*a*b* color space that is less than 10.

This application relates to an anodized part. The anodized part includes a metal substrate and an anodized layer overlaying and formed from the metal substrate. The anodized layer includes (i) an external surface that includes randomly distributed light-absorbing features that are capable of absorbing visible light incident upon the external surface, and (ii) pores defined by pore walls, where color particles are infused within the pores. The anodized layer is characterized as having a color having an L* value using a CIE L*a*b* color space that is less than 10.

Disclosed embodiment provides a display apparatus including a polysiloxane layer formed by using a polysiloxane containing a pigment on the surface of an aluminum oxide layer of a display apparatus chassis. A display apparatus according to an embodiment includes: a display panel; and a chassis disposed on the outside of the display panel, and the chassis includes an aluminum oxide layer; and a polysiloxane layer disposed on the aluminum oxide layer, on its surface.

The present invention relates to a method for producing coated substrate bodies, wherein a plurality of substrate bodies comprising surfaces to be coated are provided with a colored coating surface, the method comprising following steps: providing the substrate bodies to be coated in the interior of a vacuum coating chamber, depositing a coating on a surface of the substrate bodies to be coated, the deposition of the coating involving the deposition of a metallic layer comprising at least two different metals, forming a colored oxide layer exhibiting a colored surface by anodic oxidation of the metallic layer,
wherein: the anodic oxidation takes place in an alkaline electrolyte bath with the coated substrate bodies connected as anodes.

The present invention relates to a method for producing coated substrate bodies, wherein a plurality of substrate bodies comprising surfaces to be coated are provided with a colored coating surface, the method comprising following steps: providing the substrate bodies to be coated in the interior of a vacuum coating chamber, depositing a coating on a surface of the substrate bodies to be coated, the deposition of the coating involving the deposition of a metallic layer comprising at least two different metals, forming a colored oxide layer exhibiting a colored surface by anodic oxidation of the metallic layer,
wherein: the anodic oxidation takes place in an alkaline electrolyte bath with the coated substrate bodies connected as anodes.

A surface treatment process for a metal article provides a uniform and unblemished surface finish to the metal article. The surface treatment process anodizes the metal article to form an anodic oxide layer on a surface, and the metal article is activated using a pre-dyeing solution. The pre-dyeing solution contains complex organic acid and sodium acetate. The anodic oxide layer of the metal article is dyed for color and the dyed anodic oxide layer of the metal article is finally sealed.

This application relates to an enclosure for a portable electronic device. The enclosure includes a metal substrate and a dehydrated anodized layer overlaying the metal substrate. The dehydrated anodized layer includes pores having openings that extend from an external surface of the dehydrated anodized layer and towards the metal substrate, and a metal oxide material that plugs the openings of the pores, where a concentration of the metal oxide material is between about 3 wt % to about 10 wt %.

A motor assembly including a housing with a motor portion having an opening for receiving a motor housing/stator assembly, rotor assembly, front and rear end caps and bearings, an encoder coupled to the motor, and an rear cover for enclosing the opening of the motor portion of the housing, the rear cover at least partially surrounding the encoder. At least one of an interior surface of the rear cover or an exterior surface of the encoder comprise a material having an emissivity greater than 0.9.

A motor assembly including a housing with a motor portion having an opening for receiving a motor housing/stator assembly, rotor assembly, front and rear end caps and bearings, an encoder coupled to the motor, and an rear cover for enclosing the opening of the motor portion of the housing, the rear cover at least partially surrounding the encoder. At least one of an interior surface of the rear cover or an exterior surface of the encoder comprise a material having an emissivity greater than 0.9.