1. An electrical connector for electrically nesting an IC, the electrical connector comprising:
a base and a plurality of terminals on the base, the base being adapted for receiving the IC; and
a load plate pivotally attached to a side of the base and locked in an opposite side of the base, the load plate being stamped from a sheet of metal to form at least one pressing protrusion to engagingly press the IC in order to hold the IC on the base;
wherein said at least one pressing protrusion has an outer edge adjacent the IC when the IC is held on the base, said outer edge being coined to weed out burrs formed on said outer edge after the load plate is stamped.
2. The electrical connector of claim 1, wherein the load plate comprises a first sidewall, a second sidewall opposite to the first sidewall, two opposite third sidewalls perpendicular to the first sidewall and a space surrounded by said sidewalls.
3. The electrical connector of claim 2, wherein the third sidewall comprises a first plate perpendicular to the stiffener and a second plate perpendicular to the first plate, and said at least one pressing protrusion is formed on the second plate.
4. The electrical connector of claim 3, wherein the pressing protrusion is formed on the third sidewall integrally.
5. The electrical connector of claim 4, wherein the pressing protrusion comprises a bottom surface facing to the IC, a top surface parallel to the bottom surface, and a third surfaces perpendicular to the bottom surface, the third surface facing to the space of the load plate.
6. The electrical connector of claim 5, wherein the outer edge is formed on the boundary of the bottom surface matching with the third surface.
7. The electrical connector of claim 2, wherein the load plate comprises two pressing protrusions, two outer edges of the said pressing protrusions being symmetrical about the space of the load plate.
8. The electrical connector of claim 1, wherein the said base comprises a dielectric housing and a stiffener surrounding the housing, said housing receiving said terminals.
9. An electrical connector assembly f comprising:
a base and a plurality of terminals on the base;
an IC received in the base; and
a load plate pivotally attached to one end of the base and located on the IC, the load plate being defining an opening with at least one pressing protrusion on a periphery of said opening and extending in both lengthwise and lateral directions with regard to the periphery to downwardly engagingly press the IC in order to hold the IC on the base when said load plate is in a locked position;
wherein said at least one pressing protrusion has an outer edge facing the opening, said outer edge being coined.
10. The assembly as claimed in claim 9, wherein said outer edge is coined toward said IC.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A backlight arrangement for an auto-stereoscopic display device, comprising:
a segmented backlight; and
a lens arrangement comprising an array of lens units,
wherein a respective sub-array (14) of backlight segments is associated with each lens unit (16) of the lens arrangement, such that the lens unit (16) directs light output from different backlight segments in different directions,
wherein each backlight sub-array (14) provides illumination to a light tube (20) with the respective lens unit at the end of the light tube,
wherein the light tubes comprise at least two sets, with the light tubes of a first set all parallel to each other and facing a first direction and the light tubes of a second set all parallel to each other and facing a second direction, and
wherein each light tube (20) has an exit area of between 0.25 square centimeters and 4 square centimeters.
2. An arrangement as claimed in claim 1, wherein the light tubes (20) comprise three sets, wherein the light tubes of the first set are directed normally to the display panel, the light tubes of the second set are directed laterally to one side of the normal and the light tubes of the third set are directed laterally to the other side of the normal.
3. An arrangement as claimed in claim 2, wherein the light tubes (20) of the second and third sets are directed laterally to the side of the normal by an amount between 10 and 30 degrees.
4. An arrangement as claimed in claim 1, wherein each sub-array (14) comprises an array of individually addressable light segments, wherein there are at least 10 columns of light segments in each sub-array.
5. An arrangement as claimed in claim 1, wherein each set of light tubes (20) comprises a plurality of rows of light tubes, with light tubes of one set alternated with the light tubes of the other sets.
6. An arrangement as claimed in claim 1, further comprising a vertical diffuser (50) at the output of the backlight arrangement.
7. An auto-stereoscopic display device comprising a backlight arrangement as claimed in claim 1; and a light modulating display panel (12) illuminated by the backlight arrangement.
8. A display device as claimed in claim 7, further comprising a camera arrangement (62) for tracking the location of one or more viewers, and wherein the display further comprises a controller (60) adapted to select which set of light tubes to use for each image to be presented in dependence on the viewer location, and to control the backlight arrangement to control the direction of illumination to the display panel for each image.
9. A method of controlling an auto-stereoscopic display device which comprises a backlight arrangement comprising a segmented backlight and a lens arrangement comprising an array of lens units (16), wherein a respective sub-array (14) of backlight segments is associated with each lens unit (16) of the lens arrangement, such that the lens unit directs light output from different backlight segments in different directions, wherein the method comprises the steps of:
aligning each backlight sub-array (14) with a light tube (20) having the respective lens unit (16) at the end of the light tube, and wherein the light tubes comprise at least two sets, with the light tubes of a first set all parallel to each other and facing a first direction and the light tubes of a second set all parallel to each other and facing a second direction and wherein each light tube (20) has an exit area of between 0.25 square centimeters and 4 square centimeters;
detecting the position of a viewer;
based on the viewer position, determining which set of light tubes to use to display an image to each eye of the viewer; and
for the selected light tubes, controlling the associated sub-array (14) of backlight segments to provide illumination in a direction through a light modulating display panel to each eye of the viewer.
10. A method as claimed in claim 9, wherein the light tubes (20) comprise three sets, wherein the light tubes of the first set are directed normally to the display panel, the light tubes of the second set are directed laterally to one side of the normal and the light tubes of the third set are directed laterally to the other side of the normal.