Spacer and manufacturing device for the same

A spacer which is manufactured by a spacer manufacturing device, wherein the spacer manufacturing device comprises a photo mask having a central light-transmitting region and a peripheral light-transmitting region disposed at a periphery of the central light-transmitting region;

• and an exposure device opposite to the photo mask;
• wherein light emitting from the exposure device irradiates a negative photoresist material after passing through the photo mask, and light intensity passing through the peripheral light-transmitting region is less than light intensity passing through the central light-transmitting region;
• wherein the peripheral light-transmitting region includes multiple sub-light-transmitting regions and multiple light-shielding regions arranged alternately, and one of the multiple light-shielding regions separates the central light-transmitting region from the sub-light-transmitting regions;
• wherein the central light-transmitting region is a solid rectangle, and each of the multiple sub-light-transmitting regions and the multiple light-shielding regions is a rectangle-frame structure;
• wherein the sub-light-transmitting regions and the light-shielding regions are all symmetric about a center, and symmetry centers of the sub-light-transmitting regions and the light-shielding regions are the same as a symmetry center of the central light-transmitting region;
• and
• wherein the number of the photo mask is multiple, and widths of sub-light-transmitting regions of each photo mask are different.