Manufacturing method of separant and field-driven emission display device

A manufacturing method and technology of a display device, which are applied in the manufacture of discharge tubes/lamps, the manufacture of ships or lead wires, and the manufacture of cold cathodes, etc., can solve the problems such as the impact of the display screen on the cost, the difficulty of aligning the spacer, and the complex manufacturing process. , to achieve reliable performance, solve alignment difficulties, and optimize the structure

Inactive Publication Date: 2008-07-09
IRICO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the FED (field emission display) of this structure, the placement of the spacers needs to be done by using the spacer alignment equipment or using the alignment bonding equipment after the electrodes are completed, which will make the device's The production process is relatively complicated, and the alignment of the spacers is difficult, which will have a certain impact on the display screen and increase the cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1), at first the plate glass to be made into the cathode electrode is cleaned to obtain a clean substrate surface;

[0019] (2), apply a layer of photosensitive film on the cleaned substrate, expose and develop through a mask to form a pattern, etch the formed substrate with a photosensitive pattern, and then peel off the remaining photosensitive adhesive to form spacers;

[0020] (3) Print a layer of photosensitive paste on the formed pattern, expose and develop through the second mask plate, etch the formed substrate with photosensitive pattern, and then peel off the remaining photosensitive glue to form graphics;

[0021] (4), then need to carry out the making of cathode electrode and gate electrode to the substrate with spacer structure formed;

[0022] (5) The cathode electrode and the gate electrode are completed by two evaporation or sputtering metal processes, and then the photosensitive glue is used to form the cathode electrode and the gate electrode through...

Embodiment 2

[0026] A method for manufacturing a spacer, comprising the steps of:

[0027] Flat glass is prepared with two layers of different heights, with the upper layer structure acting as a spacer.

[0028] a. Clean the flat glass used to make cathode electrodes; use cleaning methods such as ultrasonic waves, pure water, and two fluids.

[0029] b. Coat a layer of photosensitive adhesive on the glass, which is required not to be etched by the glass etching solution. Remove excess photoresist by exposure, and perform etching, requiring the use of glass etching solution for etching, forming spacers and stripping off the remaining photoresist;

[0030] c. Coating a layer of photoresist on the structure, performing a second exposure through a mask plate, and peeling off the remaining photoresist after exposure and etching.

[0031] A method for manufacturing a field emission display device, comprising the following steps:

[0032] The lower substrate glass with cathode electrodes and s...

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PUM

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Abstract

The invention relates to a production process of a field emission device, in particular to a production method of a separant and a field emission display device, the invention is characterized by including the following steps, a. plate glass of a cathode electrode is produced cleanly; b. the separant is produced on the glass surface by any one method of 1 to 4 of the claims; c. a contact surface of the cathode electrode is produced on the glass which forms the separant; d. the cathode electrode and a grid electrode are formed on the glass by production; e. the emission materials are produced on the cathode electrode, and the sealing and connection is carried out on the other glass base plate which is coated by fluorescent powder, black strips and an anode electrode. The invention can avoid the complicated installation process when in production of the insulator and solve the problem of non-accurate alignment of the placement of the separant and the impact on the image quality due to the separant; furthermore, the assembly problem of the original separated separant is solved, the process difficulty is reduced and the performances of the device are more reliable.

Description

technical field [0001] The invention relates to a production process of a field emission device, especially a manufacturing method of a spacer and a field emission display device. Background technique [0002] Field electron emission, also known as cold cathode electron emission, relies on a strong external electric field to reduce the surface barrier of an object. A large number of electrons in the emitter escape through the surface barrier due to the tunnel effect to form field electron emission. Moreover, it has no time delay and low power consumption, so field emission is a very efficient way of electron emission. When flat panel displays such as LCD and PDP are gradually replacing CRT in the market, field emission display devices, which are similar to CRT in light emitting principle, have better performance, and are cheaper in mass production than current flat panels, are now attracting more and more people's attention. [0003] However, there are still some difficult ...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H01J9/24H01J9/02H01J9/00H01J31/12
Inventor张莉
OwnerIRICO