Planar display device with reverse T-shaped sided-grid controlled cathode structure and its production

Abstract

The invention relates to a flat-panel display with an inverted T-shaped side grid-controlled cathode structure and its manufacturing process, including a sealed vacuum chamber composed of an anode glass panel, a cathode glass panel and surrounding glass frames; layer and a phosphor layer prepared on top of the anode conductive layer; a support wall structure between the anode glass panel and the cathode glass panel and getter accessories; on the cathode glass panel there are grid lead layers, carbon nanotubes, and inverted T Type side gate-controlled cathode structure; can further enhance the control function and control efficiency of the grid, and improve the display image quality of the device; has the advantages of stable and reliable manufacturing process, simple manufacturing process, low manufacturing cost and simple structure.

Description

technical field [0001] The invention belongs to the fields of flat panel display technology, microelectronic science and technology, vacuum science and technology, and nano science and technology, and relates to device fabrication of flat panel field emission displays, in particular to carbon nanotube cathodes. The device manufacturing aspect of the flat panel field emission display, in particular relates to a flat panel display with an inverted T-shaped side grid-controlled cathode structure and its manufacturing process. Background technique [0002] Field emission flat-panel display device is a new type of flat-panel display device, which is suitable for screen display equipment in various places, such as wall-mounted color TV sets in command centers, home TV sets, meeting rooms, studios, etc., large outdoor and indoor billboards , Traffic information and stock market information of stations, airports, terminals, etc. The field emission display of carbon nanotube cathode...

AI Technical Summary

Problems solved by technology

[0003] At present, in most of the carbon nanotube cathode field emission display devices, the structural mode in which the gate structure is located above the carbon nanotube cathode structure is adopted, which has many advantages, but also has disadvantages that are difficult to overcome, such as the control grid The electrode voltage remains high, so it is difficult to combine with the conventional integrated drive circuit; the gate current is too large, which leads to a decrease in the display brightness of the overall device; the production of the carbon nanotube cathode is very difficult, and the image of the device cannot be guaranteed. show uniformity; etc.

Although it is possible to reduce the distance between the grid structure and the carbon nanotube cathode structure, it is possible to form a sufficiently large electric field intensity at the top of the carbon nanotube cathode at a lower grid operating voltage to further reduce the grid The purpose of the working voltage, but it is also restricted by factors such as the degree of insulation of the insulating material, the manufacturing process, and the properties of the material, otherwise it is easy to cause electrical breakdown of the device

Images