Assembly including an active matrix liquid crystal display module and having plural environmental seals
First Claim
1. An assembly comprising:
- (a) a base having a cavity and a lateral opening;
(b) a liquid crystal display module, including (i) first and second substrates oriented in a generally face-to-face relationship, wherein the first substrate is transparent and has on its interior face a transparent electrode material and wherein the second substrate has on its interior face a plurality of active matrix elements;
(ii) liquid crystal material sandwiched between the first and second substrates; and
(iii) an edge sealant forming a seal around the edges of the liquid crystal display module;
(c) a transparent cover;
(d) a cover sealant bonding the transparent cover to the base such that the cover covers the cavity and a seal is formed between the cover and the base;
(e) an adhesive bonding the first substrate of the liquid crystal module to the transparent cover, such that the liquid crystal display module is suspended in the cavity but is spaced apart from direct physical contact with the base;
(f) a thermally conductive material thermally connecting the liquid crystal display module and the base;
(g) external connect circuitry connected to and extending from the the liquid crystal display module and exiting the base through the lateral opening; and
(h) an insert fitting into and sealing the lateral opening while permitting the external connect circuitry to exit therethrough.
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Accused Products
Abstract
An active matrix liquid crystal display module (10) is contained in a base (20). Improved environmental sealing is provided by a primary seal (36) along the edge of the liquid crystal display module and a secondary seal (14a, 14b) at the base. The liquid crystal display module is affixed to a cover (12) which in turn is affixed to the base, such that the liquid crystal display module is suspended in a cavity (21) in the base, spaced apart from physical contact with the base. In this way, any thermomechanical stresses that may develop in the base are not transmitted to the liquid crystal display module. Thermal contact between the liquid crystal display module and the base is made via a thermally conductive material (19), to permit efficient heat dissipation.
89 Citations
17 Claims
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1. An assembly comprising:
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(a) a base having a cavity and a lateral opening;
(b) a liquid crystal display module, including (i) first and second substrates oriented in a generally face-to-face relationship, wherein the first substrate is transparent and has on its interior face a transparent electrode material and wherein the second substrate has on its interior face a plurality of active matrix elements;
(ii) liquid crystal material sandwiched between the first and second substrates; and
(iii) an edge sealant forming a seal around the edges of the liquid crystal display module;
(c) a transparent cover;
(d) a cover sealant bonding the transparent cover to the base such that the cover covers the cavity and a seal is formed between the cover and the base;
(e) an adhesive bonding the first substrate of the liquid crystal module to the transparent cover, such that the liquid crystal display module is suspended in the cavity but is spaced apart from direct physical contact with the base;
(f) a thermally conductive material thermally connecting the liquid crystal display module and the base;
(g) external connect circuitry connected to and extending from the the liquid crystal display module and exiting the base through the lateral opening; and
(h) an insert fitting into and sealing the lateral opening while permitting the external connect circuitry to exit therethrough. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification