Edge-to-edge display module
A portable information handling system housing integrates a display having an edge-to-edge presentation of visual images at a housing portion with an inactive portion of a display panel along a perimeter of the display supported by a backplate flange extension region that extends from a backlight outer perimeter associated with an active area of the display panel to the perimeter of the housing portion. Openings formed in the backplate extension flange region provide access for sensors through the display panel inactive area with backlight illumination leakage to the opening blocked by optically dense adhesive.
1. An information handling system comprising:
a housing having at least one housing portion, the at least one housing portion having a rectangular shape with a housing portion perimeter of four sides;
a processor disposed in the housing and operable to process information;
a memory disposed in the housing and operable to store the information; and
a display module having a display panel coupled over backlight by a backplate, the backplate coupled to the at least one housing portion, the display panel having an upper surface that extends to the housing portion perimeter at three or more of the sides and an active area that generates visual images within a visual image perimeter of less than the housing portion perimeter, the backlight disposed under the display panel and aligned with the visual image perimeter, the backplate having a cavity region sized to accept the backlight and an extension region extending from the visual image perimeter to the housing portion perimeter proximate a bottom surface of the display panel;
wherein the display panel has a polarizer layer at an outer surface disposed over a thin film transistor layer that generates the visual images and a color filter layer coupled to a bottom side of the thin film transistor layer, the visual images communicated to the thin film transistor layer through a source driver coupled to the bottom side of the thin film transistor layer outside of the visual image perimeter.
2. The information handling system of claim 1 further comprising:
a sensor disposed in the housing portion under the extension region and aligned to capture visual images through the display panel along a sensor axis;
wherein the extension region has an opening formed at the sensor axis.
3. The information handling system of claim 2 wherein the sensor comprises a camera operable to capture visual images.
4. The information handling system of claim 2 wherein the sensor comprises an infrared camera.
5. The information handling system of claim 2 wherein the sensor comprises an ambient light sensor.
6. The information handling system of claim 2 wherein the sensor comprises a user presence detection sensor.
7. The information handling system of claim 2 wherein the backplate couples to the display panel at the extension region opening with optically dense glue that blocks passage of illumination from the backlight to the extension region.
8. The information handling system of claim 1 wherein:
the backlight has a plastic frame; and
the backlight upper surface and plastic frame couple to the display panel lower surface with an optically clear adhesive.
9. The information handling system of claim 1 further comprising an extension frame coupled to the backplate extension region at one or more corners defined by the three sides.
10. A display module comprising:
a backplate having a central cavity region and a flange extension region, the flange extension region disposed along at least three sides of the backplate;
a backlight disposed in the central cavity and operable to generate illumination; and
a liquid crystal display panel disposed over the backplate and the backlight, the liquid crystal display panel having a perimeter that aligns along three sides with the at least three sides of the backplate, the liquid crystal display panel having an active area aligned with the backlight that generates visual images illuminated by the backlight and having an inactive area aligned with the flange extension area, the liquid crystal display generating the visual images with a thin film transistor layer, the illumination passing through a color filter at a bottom side of the thin film transistor layer and then through the thin film transistor layer, the visual images communicated to the thin film transistor layer through a source driver coupled to the bottom side of the thin film transistor layer in the inactive area.
11. The display module of claim 10 wherein the flange extension region has one or more openings to provide a sensor view through the liquid crystal display panel, the flange extension region coupled to the liquid crystal display panel proximate the opening with an optically dense adhesive.
12. The display module of claim 10 further comprising:
an optically clear adhesive disposed between the backlight upper surface and the liquid crystal display panel lower surface at the active area; and
an optically dense adhesive disposed between the flange extension region upper surface and the liquid crystal display panel lower surface at the inactive area.
13. The display module of claim 10 further comprising:
one or more corner supports coupled to one or more corners defined by the at least three sides of the backplate; and
a bezel disposed over the liquid crystal display panel at a fourth side of the backplate.