摘要:
A getter (50 or 74) situated in a cavity of a hollow structure, such as a flat-panel device, is activated by directing light energy locally through part of the hollow structure and onto the getter. The light energy is typically provided by a laser beam (60). The getter, typically of the non-evaporable type, is usually inserted as a single piece of gettering material into the cavity. The getter normally can be activated/re-activated multiple times in this manner, typically during the sealing of different parts of the structure together. The getter-containing cavity can be formed by a pair of plate structures (40 and 42) sandwiched around and outer wall (44), or by an auxiliary compartment (72) connected to a larger main compartment (70) typically constituted by the plate structures and outer wall.
摘要:
In the flat panel display containing a getter material, the getter material is activated during the sealing step, and is partially consumed, if the getter activation temperature is lower than the sealing temperature. On the other hand, a very small part of the getter material is activated if the getter activation temperature is higher than the sealing temperature. The problems are solved by a process comprising the steps of: providing front and rear glass plates of a flat panel display, both supporting the functional elements which are required for the final display; disposing a flat getter device on one of the glass plates at the position determined in the final display, sealingly joining the two glass plates by means of a glass paste which, upon solidification after first melted at a temperature T1, crystallizes to give rise to a solid having a melting temperature higher than T1; sealingly joining the two glass plates by means of a sealing material which, upon solidification at a temperature T1, gives rise to a solid having a melting temperature higher than T1; baking the thus-produced flat panel display at a temperature higher than T1 while evacuating its inner space through a glass tube left in one of the two glass plates; activating the getter material at a temperature higher than T1; and closing the inner space of the display by 'tipping-off' the glass tube.
摘要:
A flat-panel device comprising: a main compartment formed with a first plate structure, a second plate structure, and a generally annular outer wall that extends between the plate structures; an auxiliary compartment situated outside the main compartment, the auxiliary compartment formed with an auxiliary wall that contacts the first plate structure outside the main compartment, extends away from the first plate structure and main compartment, bends back towards the second plate structure, and contacts the second, plate structure outside the main compartment, the auxiliary compartment connected pressure-wise to the main compartment so that the two compartments reach largely equal steady-state compartment pressures; a getter situated in the auxiliary compartment; and control circuitry situated over the first plate structure outside the compartments, the auxiliary wall not extending significantly further away from the first plate structure than the control circuitry.
摘要:
A getter (50 or 74) situated in a cavity of a hollow structure, such as a flat-panel device, is activated by directing light energy locally through part of the hollow structure and onto the getter. The light energy is typically provided by a laser beam (60). The getter, typically of the non-evaporable type, is usually inserted as a single piece of gettering material into the cavity. The getter normally can be activated/re-activated multiple times in this manner, typically during the sealing of different parts of the structure together. The getter-containing cavity can be formed by a pair of plate structures (40 and 42) sandwiched around and outer wall (44), or by an auxiliary compartment (72) connected to a larger main compartment (70) typically constituted by the plate structures and outer wall.
摘要:
A getter (50 or 74) situated in a cavity of a hollow structure, such as a flat-panel device, is activated by directing light energy locally through part of the hollow structure and onto the getter. The light energy is typically provided by a laser beam (60). The getter, typically of the non-evaporable type, is usually inserted as a single piece of gettering material into the cavity. The getter normally can be activated/re-activated multiple times in this manner, typically during the sealing of different parts of the structure together. The getter-containing cavity can be formed by a pair of plate structures (40 and 42) sandwiched around and outer wall (44), or by an auxiliary compartment (72) connected to a larger main compartment (70) typically constituted by the plate structures and outer wall.
摘要:
A flat-panel device comprising: a main compartment (70) formed with a first plate structure (40), a second plate structure (42), and a generally annular outer wall (44) that extends between the plate structures; an auxiliary compartment (72) situated outside the main compartment (70), the auxiliary compartment (72) formed with an auxiliary wall (76) that contacts the first plate structure (40) outside the main compartment (70), extends away from the first plate structure (40) and main compartment (70), bends back towards the second plate structure (42), and contacts the second plate structure (42) outside the main compartment (70), the auxiliary compartment (72) connected pressure-wise to the main compartment (70) so that the two compartments reach largely equal steady-state compartment pressures; a getter (74) situated in the auxiliary compartment (72); and control circuitry situated over the first plate structure (40) outside the compartments, the auxiliary wall (76) not extending significantly further away from the first plate structure (40) than the control circuitry.
摘要:
An envelope includes a front substrate (11) on which a display surface is provided and a back substrate arranged to face the front substrate. The front substrate includes a metal back (20) formed on the display surface and a getter film (22) formed of two or more activated metals, on the metal back. The getter film is formed of a plurality of materials by evaporation. According to this invention, the gas adsorption characteristics of the getter film can be improved to those of the combination of a plurality of getter materials. Thus, the designing range of the characteristics of the getter film can be expanded, and the interior of the vacuum envelope can be maintained at a high vacuum degree. Therefore, it is possible to achieve an image display apparatus that can maintain a high display performance for a long time and a method of manufacturing such an apparatus.