JPS5464998A - Liquid crystal display unit - Google Patents
Liquid crystal display unitInfo
- Publication number
- JPS5464998A JPS5464998A JP13178877A JP13178877A JPS5464998A JP S5464998 A JPS5464998 A JP S5464998A JP 13178877 A JP13178877 A JP 13178877A JP 13178877 A JP13178877 A JP 13178877A JP S5464998 A JPS5464998 A JP S5464998A
- Authority
- JP
- Japan
- Prior art keywords
- resistance
- temperature
- film
- liquid crystal
- crystal display
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
PURPOSE: To secure the steady display for the liquid crystal display element by providing the resistance film varying its resistance by the heating temperature onto the element and detecting the change of the resistance to control the temperature of the element.
CONSTITUTION: Resistance film 17 of tin oxide or the like, which increases its resistance as the heating temperature rises up and decreases the resistance with lowered temperatures respectively, is provided on substrate 13 which forms liquid crystal display element 1. Film 17 is then heated up via power source 3, and liquid crystal material 16 is heated up gradually. On the other hand, the resistance value of film increases with heating, and the current decreases. By this changing amount and the power voltage, detector 4 detects the resistance value of film 17 and then detects the temperature of material 16 using the resistance value as the medium. In case the temperature is lower than the desired level, the voltage of circuit 3 is increased and decreased when the temperature is lower than the desired level respectively. For this purpose, the feedback control is given. In this way, film 17 can double the functions of the heat generator and the temperature sensor, ensuring the temperature control for element 1. Thus, the steady dispaly becomes possible even at the cold temperatures.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13178877A JPS5464998A (en) | 1977-11-02 | 1977-11-02 | Liquid crystal display unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13178877A JPS5464998A (en) | 1977-11-02 | 1977-11-02 | Liquid crystal display unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5464998A true JPS5464998A (en) | 1979-05-25 |
Family
ID=15066142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13178877A Pending JPS5464998A (en) | 1977-11-02 | 1977-11-02 | Liquid crystal display unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5464998A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998029779A1 (en) * | 1996-12-30 | 1998-07-09 | Honeywell Inc. | Transparent temperature sensor for an active matrix liquid crystal display |
| WO2000002083A3 (en) * | 1998-07-06 | 2000-02-24 | Ericsson Telefon Ab L M | Lcd temperature sensing |
| WO2000002082A3 (en) * | 1998-07-06 | 2000-02-24 | Ericsson Telefon Ab L M | Liquid crystal display temperature measuring in adhesion material |
| JP2008251994A (en) * | 2007-03-30 | 2008-10-16 | Saxa Inc | Cabinet |
| CN112394559A (en) * | 2019-08-12 | 2021-02-23 | 群创光电股份有限公司 | Electronic device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4937653A (en) * | 1972-08-08 | 1974-04-08 |
-
1977
- 1977-11-02 JP JP13178877A patent/JPS5464998A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4937653A (en) * | 1972-08-08 | 1974-04-08 |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998029779A1 (en) * | 1996-12-30 | 1998-07-09 | Honeywell Inc. | Transparent temperature sensor for an active matrix liquid crystal display |
| US6089751A (en) * | 1996-12-30 | 2000-07-18 | Honeywell Inc. | Transparent temperature sensor for an active matrix liquid crystal display |
| WO2000002083A3 (en) * | 1998-07-06 | 2000-02-24 | Ericsson Telefon Ab L M | Lcd temperature sensing |
| WO2000002082A3 (en) * | 1998-07-06 | 2000-02-24 | Ericsson Telefon Ab L M | Liquid crystal display temperature measuring in adhesion material |
| US6285421B1 (en) | 1998-07-06 | 2001-09-04 | Telefonaktiebolaget Lm Ericsson | Liquid crystal display temperature measuring in adhesion material |
| US6309100B1 (en) | 1998-07-06 | 2001-10-30 | Telefonaktiebolaget Lm Ericsson (Publ) | LCD temperature sensing |
| JP2008251994A (en) * | 2007-03-30 | 2008-10-16 | Saxa Inc | Cabinet |
| CN112394559A (en) * | 2019-08-12 | 2021-02-23 | 群创光电股份有限公司 | Electronic device |
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